//! Task lifecycle manager using git worktrees and Claude Code subprocesses.

use std::collections::HashMap;
use std::path::PathBuf;
use std::sync::Arc;
use std::time::Instant;

use rand::Rng;
use tokio::io::AsyncWriteExt;
use tokio::sync::{mpsc, RwLock, Semaphore};
use uuid::Uuid;

use std::collections::HashSet;

use super::state::TaskState;
use crate::daemon::error::{DaemonError, TaskError, TaskResult};
use crate::daemon::process::{ClaudeInputMessage, ProcessManager};
use crate::daemon::temp::TempManager;
use crate::daemon::worktree::{is_new_repo_request, ConflictResolution, WorktreeInfo, WorktreeManager};
use crate::daemon::ws::{BranchInfo, DaemonCommand, DaemonMessage};

/// Generate a secure random API key for orchestrator tool access.
fn generate_tool_key() -> String {
    let mut rng = rand::thread_rng();
    let bytes: [u8; 32] = rng.r#gen();
    hex::encode(bytes)
}

/// Check if output contains an OAuth authentication error.
/// Only checks system/error messages, not assistant responses (which could mention auth errors conversationally).
fn is_oauth_auth_error(output: &str, json_type: Option<&str>, is_stdout: bool) -> bool {
    // Only check system messages or stderr output - not assistant messages
    // which could mention auth errors in conversation
    match json_type {
        Some("assistant") | Some("user") | Some("result") => return false,
        _ => {}
    }

    // For stdout JSON messages, only check system/error types
    if is_stdout && json_type.is_none() {
        // Non-JSON stdout output - could be startup messages, check carefully
        // Only match very specific patterns that wouldn't appear in conversation
    }

    // Match various authentication error patterns from Claude Code
    // These patterns are specific enough that they shouldn't appear in normal conversation
    if output.contains("Please run /login") && output.contains("authenticate") {
        return true;
    }
    if output.contains("Invalid API key") && output.contains("ANTHROPIC_API_KEY") {
        return true;
    }
    if output.contains("authentication_error")
        && (output.contains("OAuth token has expired")
            || output.contains("Please obtain a new token"))
    {
        return true;
    }
    // Check for Claude Code's specific error format
    if output.contains("\"type\":\"error\"") && output.contains("authentication") {
        return true;
    }
    false
}

/// Extract OAuth URL from text (looks for claude.ai OAuth URLs).
fn extract_url(text: &str) -> Option<String> {
    // Look for claude.ai OAuth URLs - try multiple patterns
    let patterns = [
        "https://claude.ai/oauth",
        "https://console.anthropic.com/oauth",
    ];

    for pattern in patterns {
        if let Some(start) = text.find(pattern) {
            let remaining = &text[start..];
            // Find the end of the URL - stop at:
            // - Whitespace, common URL terminators, escape sequences
            let end = remaining
                .find(|c: char| {
                    c.is_whitespace() || c == '"' || c == '\'' || c == '>' || c == ')' || c == ']' || c == '\x07' || c == '\x1b'
                })
                .unwrap_or(remaining.len());

            let url = &remaining[..end];

            // Also check if there's another https:// within the match (hyperlink duplication)
            // Skip first 20 chars to avoid matching the start
            let url = if url.len() > 30 {
                if let Some(second_https) = url[20..].find("https://") {
                    &url[..second_https + 20] // Keep only first URL
                } else {
                    url
                }
            } else {
                url
            };

            if url.len() > 20 {
                return Some(url.to_string());
            }
        }
    }
    None
}

/// Global storage for pending OAuth flow (only one can be active at a time per daemon)
static PENDING_AUTH_FLOW: std::sync::OnceLock<std::sync::Mutex<Option<std::sync::mpsc::Sender<String>>>> = std::sync::OnceLock::new();

fn get_auth_flow_storage() -> &'static std::sync::Mutex<Option<std::sync::mpsc::Sender<String>>> {
    PENDING_AUTH_FLOW.get_or_init(|| std::sync::Mutex::new(None))
}

/// Send an auth code to the pending OAuth flow.
pub fn send_auth_code(code: &str) -> bool {
    let storage = get_auth_flow_storage();
    if let Ok(mut guard) = storage.lock() {
        if let Some(sender) = guard.take() {
            if sender.send(code.to_string()).is_ok() {
                tracing::info!("Auth code sent to setup-token process");
                return true;
            }
        }
    }
    tracing::warn!("No pending auth flow to send code to");
    false
}

/// Spawn `claude setup-token` to initiate OAuth flow and capture the login URL.
/// This spawns the process in a PTY (required by Ink) and reads output until we find a URL.
/// The process continues running in the background waiting for auth completion.
async fn get_oauth_login_url(claude_command: &str) -> Option<String> {
    use portable_pty::{native_pty_system, CommandBuilder, PtySize};
    use std::io::{Read, Write};

    tracing::info!("Spawning claude setup-token in PTY to get OAuth login URL");

    // Create a PTY - Ink requires a real terminal
    let pty_system = native_pty_system();
    let pair = match pty_system.openpty(PtySize {
        rows: 24,
        cols: 200, // Wide enough to avoid line wrapping for long URLs/codes
        pixel_width: 0,
        pixel_height: 0,
    }) {
        Ok(pair) => pair,
        Err(e) => {
            tracing::error!(error = %e, "Failed to open PTY");
            return None;
        }
    };

    // Build the command
    let mut cmd = CommandBuilder::new(claude_command);
    cmd.arg("setup-token");
    // Set environment variables to prevent browser from opening and disable fancy output
    // Use "false" so the browser command fails, forcing setup-token to show URL and wait for manual input
    cmd.env("BROWSER", "false");
    cmd.env("TERM", "dumb"); // Disable hyperlinks and fancy terminal features
    cmd.env("NO_COLOR", "1"); // Disable colors

    // Spawn the process in the PTY
    let mut child = match pair.slave.spawn_command(cmd) {
        Ok(child) => child,
        Err(e) => {
            tracing::error!(error = %e, "Failed to spawn claude setup-token in PTY");
            return None;
        }
    };

    // Get the reader and writer from the master side
    let mut reader = match pair.master.try_clone_reader() {
        Ok(reader) => reader,
        Err(e) => {
            tracing::error!(error = %e, "Failed to clone PTY reader");
            return None;
        }
    };

    let mut writer = match pair.master.take_writer() {
        Ok(writer) => writer,
        Err(e) => {
            tracing::error!(error = %e, "Failed to take PTY writer");
            return None;
        }
    };

    // Create channels for communication
    let (code_tx, code_rx) = std::sync::mpsc::channel::<String>();
    let (url_tx, url_rx) = std::sync::mpsc::channel::<String>();

    // Store the code sender globally so it can be used when AUTH_CODE message arrives
    {
        let storage = get_auth_flow_storage();
        if let Ok(mut guard) = storage.lock() {
            *guard = Some(code_tx);
        }
    }

    // Spawn reader thread - reads PTY output and sends URL when found
    let reader_handle = std::thread::spawn(move || {
        let mut buffer = [0u8; 4096];
        let mut accumulated = String::new();
        let mut url_sent = false;
        let mut read_count = 0;

        tracing::info!("setup-token reader thread started");

        loop {
            match reader.read(&mut buffer) {
                Ok(0) => {
                    tracing::info!("setup-token PTY EOF reached after {} reads", read_count);
                    break;
                }
                Ok(n) => {
                    read_count += 1;
                    let chunk = String::from_utf8_lossy(&buffer[..n]);
                    accumulated.push_str(&chunk);

                    // Process complete lines
                    while let Some(newline_pos) = accumulated.find('\n') {
                        let line = accumulated[..newline_pos].to_string();
                        accumulated = accumulated[newline_pos + 1..].to_string();

                        let clean_line = strip_ansi_codes(&line);
                        if !clean_line.trim().is_empty() {
                            tracing::info!(line = %clean_line, "setup-token output");
                        }

                        // Look for OAuth URL if not found yet
                        if !url_sent {
                            if let Some(url) = extract_url(&line) {
                                tracing::info!(url = %url, "Found OAuth login URL");
                                let _ = url_tx.send(url);
                                url_sent = true;
                            }
                        }

                        // Check for success/failure messages
                        if clean_line.contains("successfully") || clean_line.contains("authenticated") || clean_line.contains("Success") {
                            tracing::info!("Authentication appears successful!");
                        }
                        if clean_line.contains("error") || clean_line.contains("failed") || clean_line.contains("invalid") {
                            tracing::warn!(line = %clean_line, "setup-token may have encountered an error");
                        }
                    }
                }
                Err(e) => {
                    tracing::warn!(error = %e, "PTY read error after {} reads", read_count);
                    break;
                }
            }
        }
        tracing::info!("setup-token reader thread ended");
    });

    // Spawn writer thread - waits for auth code and writes it to PTY
    std::thread::spawn(move || {
        tracing::info!("setup-token writer thread started, waiting for auth code (10 min timeout)");

        // Wait for auth code from frontend (with long timeout - user needs time to authenticate)
        match code_rx.recv_timeout(std::time::Duration::from_secs(600)) {
            Ok(code) => {
                tracing::info!(code_len = code.len(), "Received auth code from frontend, writing to PTY");
                // Write code followed by carriage return (Enter key in raw terminal mode)
                let code_with_enter = format!("{}\r", code);
                if let Err(e) = writer.write_all(code_with_enter.as_bytes()) {
                    tracing::error!(error = %e, "Failed to write auth code to PTY");
                } else if let Err(e) = writer.flush() {
                    tracing::error!(error = %e, "Failed to flush PTY writer");
                } else {
                    tracing::info!("Auth code written to setup-token PTY successfully");
                    // Give Ink a moment to process, then send another Enter in case first was buffered
                    std::thread::sleep(std::time::Duration::from_millis(100));
                    let _ = writer.write_all(b"\r");
                    let _ = writer.flush();
                    tracing::info!("Sent additional Enter keypress");
                }
            }
            Err(e) => {
                tracing::info!(error = %e, "Auth code receive ended (timeout or channel closed)");
            }
        }

        // Wait for reader thread to finish
        tracing::debug!("Waiting for reader thread to finish...");
        let _ = reader_handle.join();

        // Wait for child to fully exit
        tracing::debug!("Waiting for setup-token child process to exit...");
        match child.wait() {
            Ok(status) => {
                tracing::info!(exit_status = ?status, "setup-token process exited");
            }
            Err(e) => {
                tracing::error!(error = %e, "Failed to wait for setup-token process");
            }
        }
    });

    // Wait for URL with timeout
    match url_rx.recv_timeout(std::time::Duration::from_secs(30)) {
        Ok(url) => Some(url),
        Err(e) => {
            tracing::error!(error = %e, "Timed out waiting for OAuth login URL");
            None
        }
    }
}

/// Strip ANSI escape codes from a string for cleaner logging.
fn strip_ansi_codes(s: &str) -> String {
    let mut result = String::with_capacity(s.len());
    let mut chars = s.chars().peekable();

    while let Some(c) = chars.next() {
        if c == '\x1b' {
            // Check what type of escape sequence
            match chars.peek() {
                Some(&'[') => {
                    // CSI sequence: ESC [ ... letter
                    chars.next(); // consume '['
                    while let Some(&next) = chars.peek() {
                        chars.next();
                        if next.is_ascii_alphabetic() {
                            break;
                        }
                    }
                }
                Some(&']') => {
                    // OSC sequence: ESC ] ... ST (where ST is BEL or ESC \)
                    chars.next(); // consume ']'
                    while let Some(&next) = chars.peek() {
                        if next == '\x07' {
                            chars.next(); // consume BEL (string terminator)
                            break;
                        }
                        if next == '\x1b' {
                            chars.next(); // consume ESC
                            if chars.peek() == Some(&'\\') {
                                chars.next(); // consume \ (string terminator)
                            }
                            break;
                        }
                        chars.next();
                    }
                }
                _ => {
                    // Unknown escape, skip just the ESC
                }
            }
        } else if !c.is_control() || c == '\n' {
            result.push(c);
        }
    }

    result
}

/// System prompt for regular (non-orchestrator) subtasks.
/// This ensures subtasks work only within their isolated worktree directory.
const SUBTASK_SYSTEM_PROMPT: &str = r#"You are working in an isolated worktree directory that contains a snapshot of the codebase.

## IMPORTANT: Directory Restrictions

**You MUST only work within the current working directory (your worktree).**

- DO NOT use `cd` to navigate to directories outside your worktree
- DO NOT use absolute paths that point outside your worktree (e.g., don't write to ~/some/path, /tmp, or the original repository)
- DO NOT modify files in parent directories or sibling directories
- All your file operations should be relative to the current directory

Your working directory is your sandboxed workspace. When you complete your task, your changes will be reviewed and integrated by the orchestrator.

**Why?** Your worktree is isolated so that:
1. Your changes don't affect other running tasks
2. Changes can be reviewed before integration
3. Multiple tasks can work on the codebase in parallel without conflicts

---

"#;

/// The orchestrator system prompt that tells Claude how to use the helper script.
const ORCHESTRATOR_SYSTEM_PROMPT: &str = r#"You are an orchestrator task. Your job is to coordinate subtasks and integrate their work, NOT to write code directly.

## FIRST STEP

Start by checking if you have existing subtasks:

```bash
# List all subtasks to see what work needs to be done
./.makima/orchestrate.sh list
```

If subtasks exist, start them. If you need additional subtasks or no subtasks exist yet, you can create them.

---

## Creating Subtasks

You can create new subtasks to break down work:

```bash
# Create a new subtask with a name and plan
./.makima/orchestrate.sh create "Subtask Name" "Detailed plan for what the subtask should do..."

# The command returns the new subtask ID - use it to start the subtask
./.makima/orchestrate.sh start <new_subtask_id>
```

Create subtasks when you need to:
- Break down complex work into smaller pieces
- Run multiple tasks in parallel on different parts of the codebase
- Delegate specific implementation work

## Task Continuation (Sequential Dependencies)

When subtasks need to build on each other's work (e.g., Task B depends on Task A's changes), use `--continue-from`:

```bash
# Create Task B that continues from Task A's worktree
./.makima/orchestrate.sh create "Task B" "Build on Task A's work..." --continue-from <task_a_id>
```

This copies all files from Task A's worktree into Task B's worktree, so Task B starts with Task A's changes.

**When to use continuation:**
- Sequential work: Task B needs Task A's output files
- Staged implementation: Building features incrementally
- Fix-and-extend: One task fixes issues, another adds features on top

**When NOT to use continuation:**
- Parallel tasks working on different files
- Independent subtasks that can be merged separately

**Important for merging:** When tasks continue from each other, only merge the FINAL task in the chain. Earlier tasks' changes are already included in later tasks' worktrees.

## Sharing Files with Subtasks

Use `--files` to copy specific files from your orchestrator worktree to subtasks. This is useful for sharing plans, configs, or data files:

```bash
# Create subtask with specific files copied from orchestrator
./.makima/orchestrate.sh create "Implement Feature" "Follow the plan in PLAN.md" --files "PLAN.md"

# Copy multiple files (comma-separated)
./.makima/orchestrate.sh create "API Work" "Use the spec..." --files "PLAN.md,api-spec.yaml,types.ts"

# Combine with --continue-from to share files AND continue from another task
./.makima/orchestrate.sh create "Step 2" "Continue..." --continue-from <task_a_id> --files "requirements.md"
```

**Use cases for --files:**
- Share a PLAN.md with detailed implementation steps
- Distribute configuration or spec files
- Pass generated data or intermediate results

## How Subtasks Work

Each subtask runs in its own **worktree** - a separate directory with a copy of the codebase. When subtasks complete:
- Their work remains in the worktree files (NOT committed to git)
- **Subtasks do NOT auto-merge** - YOU must integrate their work into your worktree
- You can view and copy files from subtask worktrees using their paths
- The worktree path is returned when you get subtask status

**IMPORTANT:** Subtasks never create PRs or merge to the target repository. Only the orchestrator (you) can trigger completion actions like PR creation or merging after integrating all subtask work.

## Subtask Commands
```bash
# List all subtasks and their current status
./.makima/orchestrate.sh list

# Create a new subtask (returns the subtask ID)
./.makima/orchestrate.sh create "Name" "Plan/description"

# Create a subtask that continues from another task's worktree
./.makima/orchestrate.sh create "Name" "Plan" --continue-from <other_task_id>

# Create a subtask with specific files copied from orchestrator worktree
./.makima/orchestrate.sh create "Name" "Plan" --files "file1.md,file2.yaml"

# Start a specific subtask (it will run in its own Claude instance)
./.makima/orchestrate.sh start <subtask_id>

# Stop a running subtask
./.makima/orchestrate.sh stop <subtask_id>

# Get detailed status of a subtask (includes worktree_path when available)
./.makima/orchestrate.sh status <subtask_id>

# Get the output/logs of a subtask
./.makima/orchestrate.sh output <subtask_id>

# Get the worktree path for a subtask
./.makima/orchestrate.sh worktree <subtask_id>
```

## Integrating Subtask Work

When subtasks complete, their changes exist as files in their worktree directories:
- Files are NOT committed to git branches
- You must copy/integrate files from subtask worktrees into your worktree
- Use standard file operations (cp, cat, etc.) to review and integrate changes

### Handling Continuation Chains

**CRITICAL:** When subtasks use `--continue-from`, they form a chain where each task includes all changes from previous tasks. You must ONLY integrate the FINAL task in each chain.

Example chain: Task A → Task B (continues from A) → Task C (continues from B)
- Task C's worktree contains ALL changes from A, B, and C
- You should ONLY integrate Task C's worktree
- DO NOT integrate Task A or Task B separately (their changes are already in C)

**How to track continuation chains:**
1. When you create tasks with `--continue-from`, note which task continues from which
2. Build a mental model: Independent tasks (no continuation) + Continuation chains
3. For each chain, only integrate the LAST task in the chain

**Example with mixed independent and chained tasks:**
```
Independent tasks (integrate all):
- Task X: API endpoints
- Task Y: Database models

Continuation chain (integrate ONLY the last one):
- Task A: Core feature → Task B: Tests (continues from A) → Task C: Docs (continues from B)
  Only integrate Task C!
```

### Integration Examples

For independent subtasks (no continuation):
```bash
# Get the worktree path for a completed subtask
SUBTASK_PATH=$(./.makima/orchestrate.sh worktree <subtask_id>)

# View what files were changed
ls -la "$SUBTASK_PATH"
diff -r . "$SUBTASK_PATH" --exclude=.git --exclude=.makima

# Copy specific files from subtask
cp "$SUBTASK_PATH/src/new_file.rs" ./src/
cp "$SUBTASK_PATH/src/modified_file.rs" ./src/

# Or use diff/patch for more control
diff -u ./src/file.rs "$SUBTASK_PATH/src/file.rs" > changes.patch
patch -p0 < changes.patch
```

For continuation chains (only integrate the final task):
```bash
# If you have: Task A → Task B → Task C (each continues from previous)
# ONLY get and integrate Task C's worktree - it has everything!

FINAL_TASK_PATH=$(./.makima/orchestrate.sh worktree <task_c_id>)

# Copy all changes from the final task
rsync -av --exclude='.git' --exclude='.makima' "$FINAL_TASK_PATH/" ./
```

## Completion
```bash
# Mark yourself as complete after integrating all subtask work
./.makima/orchestrate.sh done "Summary of what was accomplished"
```

## Workflow
1. **List existing subtasks**: Run `list` to see current subtasks
2. **Create subtasks if needed**: Use `create` to add new subtasks for the work
   - For independent parallel work: create without `--continue-from`
   - For sequential dependencies: use `--continue-from <previous_task_id>`
   - Track which tasks continue from which (continuation chains)
3. **Start subtasks**: Run `start` for each subtask
4. **Monitor progress**: Check status and output as subtasks run
5. **Integrate work**: When subtasks complete:
   - For independent tasks: integrate each one's worktree
   - For continuation chains: ONLY integrate the FINAL task (it has all changes)
   - Get worktree path with `worktree <subtask_id>`
   - Copy or merge files into your worktree
6. **Complete**: Call `done` once all work is integrated

## Important Notes
- Subtask files are in worktrees, NOT committed git branches
- **Subtasks do NOT auto-merge or create PRs** - you must integrate their work
- You can read files from subtask worktrees using their paths
- Use standard file tools (cp, diff, cat, rsync) to integrate changes
- You should NOT edit files directly - that's what subtasks are for
- DO NOT DO THE SUBTASKS' WORK! Your only job is to coordinate, not implement.
- When you call `done`, YOUR worktree may be used for the final PR/merge
"#;


/// System prompt for supervisor tasks (contract orchestrators).
/// Supervisors monitor all tasks in a contract, create new tasks, and drive the contract to completion.
const SUPERVISOR_SYSTEM_PROMPT: &str = r#"You are the SUPERVISOR for this contract. Your ONLY job is to coordinate work by spawning tasks, waiting for them to complete, and managing git operations.

## CRITICAL RULES - READ CAREFULLY

1. **NEVER write code or edit files yourself** - you are a coordinator ONLY
2. **NEVER make commits yourself** - tasks do their own commits
3. **ALWAYS spawn tasks** for ANY work that involves:
   - Writing or editing code
   - Creating or modifying files
   - Making implementation changes
   - Any actual development work
4. **ALWAYS wait for tasks to complete** - you MUST use `wait` after spawning
5. **Your role is ONLY to**:
   - Analyze the contract goal and break it into tasks
   - Spawn tasks AND wait for them to complete
   - Review completed task results
   - Merge completed work using `merge`
   - Create PRs when ready using `pr`

## REQUIRED WORKFLOW - Follow This Pattern

For EVERY task you spawn, you MUST:
1. Spawn the task with `spawn`
2. IMMEDIATELY call `wait` to block until completion
3. Check the result and handle success/failure
4. Merge if successful

```bash
# CORRECT PATTERN - spawn then wait
RESULT=$(makima supervisor spawn "Task Name" "Detailed plan...")
TASK_ID=$(echo "$RESULT" | jq -r '.taskId')
echo "Spawned task: $TASK_ID"

# MUST wait for the task - DO NOT skip this step!
makima supervisor wait "$TASK_ID"

# Check result, view diff, merge if successful
makima supervisor diff "$TASK_ID"
makima supervisor merge "$TASK_ID"
```

## Example - Full Workflow

Goal: "Add user authentication"

```bash
# Step 1: Create a makima branch for this work (use makima/{name} convention)
makima supervisor branch "makima/user-authentication"

# Step 2: Spawn tasks, wait for each, and merge to the branch

# Task 1: Research (spawn and wait)
RESULT=$(makima supervisor spawn "Research auth patterns" "Explore the codebase for existing authentication. Document findings.")
TASK_ID=$(echo "$RESULT" | jq -r '.taskId')
makima supervisor wait "$TASK_ID"
# Review findings before continuing

# Task 2: Login endpoint (spawn and wait)
RESULT=$(makima supervisor spawn "Implement login" "Create POST /api/login endpoint...")
TASK_ID=$(echo "$RESULT" | jq -r '.taskId')
makima supervisor wait "$TASK_ID"
makima supervisor diff "$TASK_ID"
makima supervisor merge "$TASK_ID" --to "makima/user-authentication"

# Task 3: Logout endpoint (spawn and wait)
RESULT=$(makima supervisor spawn "Implement logout" "Create POST /api/logout endpoint...")
TASK_ID=$(echo "$RESULT" | jq -r '.taskId')
makima supervisor wait "$TASK_ID"
makima supervisor merge "$TASK_ID" --to "makima/user-authentication"

# Step 3: All tasks complete - create PR from makima branch
makima supervisor pr "makima/user-authentication" --title "Add user authentication" --base main
```

## Available Tools (via makima supervisor)

### Task Management
```bash
# List all tasks in this contract
makima supervisor tasks

# Spawn a new task (returns JSON with taskId)
makima supervisor spawn "Task Name" "Detailed plan..."

# IMPORTANT: Wait for task to complete (blocks until done/failed)
makima supervisor wait <task_id> [timeout_seconds]

# Read a file from any task's worktree
makima supervisor read-file <task_id> <file_path>

# Get the full task tree structure
makima supervisor tree
```

### Git Operations
```bash
# Create a new branch
makima supervisor branch <branch_name> [--from <task_id|sha>]

# Merge a task's changes to a branch
makima supervisor merge <task_id> [--to <branch>] [--squash]

# Create a pull request
makima supervisor pr <task_id> --title "Title" [--body "Body"] [--base main]

# View a task's diff
makima supervisor diff <task_id>

# Create a git checkpoint
makima supervisor checkpoint "Checkpoint message"

# List checkpoints for a task
makima supervisor checkpoints [task_id]
```

### Contract
```bash
# Get contract status
makima supervisor status
```

### User Feedback
```bash
# Ask a free-form question
makima supervisor ask "Your question here"

# Ask with choices (comma-separated)
makima supervisor ask "Choose an option" --choices "Option A,Option B,Option C"

# Ask with context
makima supervisor ask "Ready to proceed?" --context "After completing task X"

# Ask with custom timeout (default 1 hour)
makima supervisor ask "Question" --timeout 3600
```

## User Feedback (Ask Command)

You can ask the user questions when you need clarification or approval:

```bash
# Ask a free-form question (waits for user to respond)
makima supervisor ask "What authentication method should I use?"

# Ask with predefined choices
makima supervisor ask "Ready to create PR?" --choices "Yes,No,Need more changes"

# Ask with context
makima supervisor ask "Should I proceed?" --context "Plan phase complete"
```

The ask command will block until the user responds (or timeout). Use this to:
- Clarify requirements before starting work
- Get approval before creating PRs
- Ask for guidance when tasks fail

## Contract Phase Progression

### For "Simple" contracts (Plan → Execute):
1. **Plan Phase**: Review the plan document and understand the goal
2. **Execute Phase**: Spawn tasks to implement the plan, then create PR
3. Mark contract as complete when PR is created

### For "Specification" contracts (Research → Specify → Plan → Execute → Review):
Progress through each phase, spawning tasks as needed and asking for user feedback.

## Key Points

1. **Create a makima branch first** - use `branch "makima/{name}"` for the contract's work
2. **spawn returns immediately** - the task runs in the background
3. **wait blocks until complete** - you MUST call this to know when a task finishes
4. **Never fire-and-forget** - always wait for each task before moving on
5. **Merge to your makima branch** - use `merge <task_id> --to "makima/{name}"` to collect completed work
6. **Create PR when done** - use `pr "makima/{name}" --title "..." --base main`
7. **Ask when unsure** - use `ask` to get user feedback on decisions

## Standard Workflow

1. `branch "makima/{name}"` - Create branch (e.g., "makima/add-auth")
2. For each piece of work:
   - `spawn` - Create task
   - `wait` - Block until complete
   - `merge --to "makima/{name}"` - Merge to branch
3. `ask "Ready to create PR?"` - Get user approval
4. `pr "makima/{name}" --title "..." --base main` - Create PR

## Important Reminders

- **ONLY YOU can spawn tasks** - regular tasks cannot create children
- **NEVER implement anything yourself** - always spawn tasks
- **ALWAYS create a makima branch** - use `makima/{name}` naming convention
- **ASK for feedback** when you need clarification or approval
- Tasks run independently - you just coordinate
- You will be resumed if interrupted - your conversation is preserved
- Create checkpoints before major transitions
- **Mark contract complete** when PR is created by updating status

---

"#;

/// System prompt for tasks that are part of a contract.
/// This tells the task about contract.sh and how to use it to interact with the contract.
const CONTRACT_INTEGRATION_PROMPT: &str = r##"
## Contract Integration

This task is part of a contract. You have access to contract tools via the `makima contract` CLI.

### Contract Commands

```bash
# Get contract context (name, phase, goals)
makima contract status

# Get phase checklist and deliverables
makima contract checklist

# List contract files
makima contract files

# Read a specific file content
makima contract file <file_id>

# Report progress to the contract
makima contract report "Completed X, working on Y..."

# Create a new contract file (content via stdin)
echo "# New Documentation" | makima contract create-file "New Document"

# Update an existing contract file (content via stdin)
cat updated_content.md | makima contract update-file <file_id>

# Get suggested next action when done
makima contract suggest-action

# Report completion with metrics
makima contract completion-action --files "file1.rs,file2.rs" --code
```

### What You Should Do

**Before starting:**
1. Run `makima contract status` to understand the contract context
2. Run `makima contract checklist` to see phase deliverables
3. Run `makima contract files` to see existing documentation

**While working:**
- Report significant progress with `makima contract report "..."`

**When completing:**
1. If your work should be documented, create or update contract files
2. Run `makima contract completion-action` to see recommended next steps
3. Consider what contract files or phases might need updating

**Important:** Your work should contribute to the contract's goals. Check the contract status to understand what's expected.

---

"##;

/// Tracks merge state for an orchestrator task.
#[derive(Default)]
struct MergeTracker {
    /// Subtask branches that have been successfully merged.
    merged_subtasks: HashSet<Uuid>,
    /// Subtask branches that were explicitly skipped (with reason).
    skipped_subtasks: HashMap<Uuid, String>,
}

/// Managed task information.
#[derive(Clone)]
pub struct ManagedTask {
    /// Task ID.
    pub id: Uuid,
    /// Human-readable task name.
    pub task_name: String,
    /// Current state.
    pub state: TaskState,
    /// Worktree info if created.
    pub worktree: Option<WorktreeInfo>,
    /// Task plan.
    pub plan: String,
    /// Repository URL or path.
    pub repo_source: Option<String>,
    /// Base branch.
    pub base_branch: Option<String>,
    /// Target branch to merge into.
    pub target_branch: Option<String>,
    /// Parent task ID if this is a subtask.
    pub parent_task_id: Option<Uuid>,
    /// Depth in task hierarchy (0=top-level, 1=subtask, 2=sub-subtask).
    pub depth: i32,
    /// Whether this task runs as an orchestrator (coordinates subtasks).
    pub is_orchestrator: bool,
    /// Whether this task is a supervisor (long-running contract orchestrator).
    pub is_supervisor: bool,
    /// Path to target repository for completion actions.
    pub target_repo_path: Option<String>,
    /// Completion action: "none", "branch", "merge", "pr".
    pub completion_action: Option<String>,
    /// Task ID to continue from (copy worktree from this task).
    pub continue_from_task_id: Option<Uuid>,
    /// Files to copy from parent task's worktree.
    pub copy_files: Option<Vec<String>>,
    /// Contract ID if this task is associated with a contract.
    pub contract_id: Option<Uuid>,
    /// Time task was created.
    pub created_at: Instant,
    /// Time task started running.
    pub started_at: Option<Instant>,
    /// Time task completed.
    pub completed_at: Option<Instant>,
    /// Error message if failed.
    pub error: Option<String>,
}

/// Configuration for task execution.
#[derive(Clone)]
pub struct TaskConfig {
    /// Maximum concurrent tasks.
    pub max_concurrent_tasks: u32,
    /// Base directory for worktrees.
    pub worktree_base_dir: PathBuf,
    /// Environment variables to pass to Claude.
    pub env_vars: HashMap<String, String>,
    /// Claude command path.
    pub claude_command: String,
    /// Additional arguments to pass to Claude Code.
    pub claude_args: Vec<String>,
    /// Arguments to pass before defaults.
    pub claude_pre_args: Vec<String>,
    /// Enable Claude's permission system.
    pub enable_permissions: bool,
    /// Disable verbose output.
    pub disable_verbose: bool,
}

impl Default for TaskConfig {
    fn default() -> Self {
        Self {
            max_concurrent_tasks: 4,
            worktree_base_dir: WorktreeManager::default_base_dir(),
            env_vars: HashMap::new(),
            claude_command: "claude".to_string(),
            claude_args: Vec::new(),
            claude_pre_args: Vec::new(),
            enable_permissions: false,
            disable_verbose: false,
        }
    }
}

/// Task manager for handling task lifecycle.
pub struct TaskManager {
    /// Worktree manager.
    worktree_manager: Arc<WorktreeManager>,
    /// Process manager.
    process_manager: Arc<ProcessManager>,
    /// Temp directory manager.
    temp_manager: Arc<TempManager>,
    /// Task configuration.
    #[allow(dead_code)]
    config: TaskConfig,
    /// Active tasks.
    tasks: Arc<RwLock<HashMap<Uuid, ManagedTask>>>,
    /// Channel to send messages to server.
    ws_tx: mpsc::Sender<DaemonMessage>,
    /// Semaphore for limiting concurrent tasks.
    semaphore: Arc<Semaphore>,
    /// Channels for sending input to running tasks.
    /// Each sender allows sending messages to the stdin of a running Claude process.
    task_inputs: Arc<RwLock<HashMap<Uuid, mpsc::Sender<String>>>>,
    /// Tracks merge state per orchestrator task (for completion gate).
    merge_trackers: Arc<RwLock<HashMap<Uuid, MergeTracker>>>,
}

impl TaskManager {
    /// Create a new task manager.
    pub fn new(config: TaskConfig, ws_tx: mpsc::Sender<DaemonMessage>) -> Self {
        let max_concurrent = config.max_concurrent_tasks as usize;
        let worktree_manager = Arc::new(WorktreeManager::new(config.worktree_base_dir.clone()));
        let process_manager = Arc::new(
            ProcessManager::with_command(config.claude_command.clone())
                .with_args(config.claude_args.clone())
                .with_pre_args(config.claude_pre_args.clone())
                .with_permissions_enabled(config.enable_permissions)
                .with_verbose_disabled(config.disable_verbose)
                .with_env(config.env_vars.clone()),
        );
        let temp_manager = Arc::new(TempManager::new());

        Self {
            worktree_manager,
            process_manager,
            temp_manager,
            config,
            tasks: Arc::new(RwLock::new(HashMap::new())),
            ws_tx,
            semaphore: Arc::new(Semaphore::new(max_concurrent)),
            task_inputs: Arc::new(RwLock::new(HashMap::new())),
            merge_trackers: Arc::new(RwLock::new(HashMap::new())),
        }
    }

    /// Handle a command from the server.
    pub async fn handle_command(&self, command: DaemonCommand) -> Result<(), DaemonError> {
        tracing::info!("Received command from server: {:?}", command);

        match command {
            DaemonCommand::SpawnTask {
                task_id,
                task_name,
                plan,
                repo_url,
                base_branch,
                target_branch,
                parent_task_id,
                depth,
                is_orchestrator,
                target_repo_path,
                completion_action,
                continue_from_task_id,
                copy_files,
                contract_id,
                is_supervisor,
            } => {
                tracing::info!(
                    task_id = %task_id,
                    task_name = %task_name,
                    repo_url = ?repo_url,
                    base_branch = ?base_branch,
                    target_branch = ?target_branch,
                    parent_task_id = ?parent_task_id,
                    depth = depth,
                    is_orchestrator = is_orchestrator,
                    is_supervisor = is_supervisor,
                    target_repo_path = ?target_repo_path,
                    completion_action = ?completion_action,
                    continue_from_task_id = ?continue_from_task_id,
                    copy_files = ?copy_files,
                    contract_id = ?contract_id,
                    plan_len = plan.len(),
                    "Spawning new task"
                );
                self.spawn_task(
                    task_id, task_name, plan, repo_url, base_branch, target_branch,
                    parent_task_id, depth, is_orchestrator, is_supervisor,
                    target_repo_path, completion_action, continue_from_task_id,
                    copy_files, contract_id
                ).await?;
            }
            DaemonCommand::PauseTask { task_id } => {
                tracing::info!(task_id = %task_id, "Pause not supported for subprocess tasks");
                // Subprocesses don't support pause, just log and ignore
            }
            DaemonCommand::ResumeTask { task_id } => {
                tracing::info!(task_id = %task_id, "Resume not supported for subprocess tasks");
                // Subprocesses don't support resume, just log and ignore
            }
            DaemonCommand::InterruptTask { task_id, graceful: _ } => {
                tracing::info!(task_id = %task_id, "Interrupting task");
                self.interrupt_task(task_id).await?;
            }
            DaemonCommand::SendMessage { task_id, message } => {
                // Check if this is an auth code message
                if message.starts_with("AUTH_CODE:") {
                    let code = message.strip_prefix("AUTH_CODE:").unwrap_or("").trim();
                    tracing::info!(task_id = %task_id, "Received auth code from frontend");
                    if send_auth_code(code) {
                        tracing::info!(task_id = %task_id, "Auth code forwarded to setup-token");
                    } else {
                        tracing::warn!(task_id = %task_id, "No pending auth flow to receive code");
                    }
                } else {
                    // Regular message - send to task's stdin
                    tracing::info!(task_id = %task_id, message_len = message.len(), "Sending message to task");
                    // Send message to the task's stdin via the input channel
                    let inputs = self.task_inputs.read().await;
                    if let Some(sender) = inputs.get(&task_id) {
                        if let Err(e) = sender.send(message).await {
                            tracing::warn!(task_id = %task_id, error = %e, "Failed to send message to task input channel");
                        } else {
                            tracing::info!(task_id = %task_id, "Message sent to task successfully");
                        }
                    } else {
                        drop(inputs); // Release read lock before checking if we need to respawn

                        // Check if this is a supervisor that needs to be respawned
                        let task_info = {
                            let tasks = self.tasks.read().await;
                            tasks.get(&task_id).cloned()
                        };

                        if let Some(task) = task_info {
                            if task.is_supervisor {
                                tracing::info!(
                                    task_id = %task_id,
                                    "Supervisor has no active Claude process, respawning with message"
                                );

                                // Respawn the supervisor with the new message as the plan
                                // Claude Code will use --continue to maintain conversation history
                                let inner = self.clone_inner();
                                let task_name = task.task_name.clone();
                                let repo_source = task.repo_source.clone();
                                let base_branch = task.base_branch.clone();
                                let target_branch = task.target_branch.clone();
                                let target_repo_path = task.target_repo_path.clone();
                                let completion_action = task.completion_action.clone();
                                let contract_id = task.contract_id;

                                // Spawn in background to not block the command handler
                                tokio::spawn(async move {
                                    if let Err(e) = inner.run_task(
                                        task_id,
                                        task_name,
                                        message, // Use the message as the new prompt
                                        repo_source,
                                        base_branch,
                                        target_branch,
                                        false, // is_orchestrator
                                        true,  // is_supervisor
                                        target_repo_path,
                                        completion_action,
                                        None,  // continue_from_task_id
                                        None,  // copy_files
                                        contract_id,
                                    ).await {
                                        tracing::error!(
                                            task_id = %task_id,
                                            error = %e,
                                            "Failed to respawn supervisor"
                                        );
                                    }
                                });
                            } else {
                                tracing::warn!(task_id = %task_id, "No input channel for task (task may not be running)");
                            }
                        } else {
                            tracing::warn!(task_id = %task_id, "Task not found");
                        }
                    }
                }
            }
            DaemonCommand::InjectSiblingContext { task_id, .. } => {
                tracing::debug!(task_id = %task_id, "Sibling context injection not supported for subprocess tasks");
            }
            DaemonCommand::Authenticated { daemon_id } => {
                tracing::debug!(daemon_id = %daemon_id, "Authenticated command (handled by WS client)");
            }
            DaemonCommand::Error { code, message } => {
                tracing::warn!(code = %code, message = %message, "Error command from server");
            }

            // =========================================================================
            // Merge Commands
            // =========================================================================

            DaemonCommand::ListBranches { task_id } => {
                tracing::info!(task_id = %task_id, "Listing task branches");
                self.handle_list_branches(task_id).await?;
            }
            DaemonCommand::MergeStart { task_id, source_branch } => {
                tracing::info!(task_id = %task_id, source_branch = %source_branch, "Starting merge");
                self.handle_merge_start(task_id, source_branch).await?;
            }
            DaemonCommand::MergeStatus { task_id } => {
                tracing::info!(task_id = %task_id, "Getting merge status");
                self.handle_merge_status(task_id).await?;
            }
            DaemonCommand::MergeResolve { task_id, file, strategy } => {
                tracing::info!(task_id = %task_id, file = %file, strategy = %strategy, "Resolving conflict");
                self.handle_merge_resolve(task_id, file, strategy).await?;
            }
            DaemonCommand::MergeCommit { task_id, message } => {
                tracing::info!(task_id = %task_id, "Committing merge");
                self.handle_merge_commit(task_id, message).await?;
            }
            DaemonCommand::MergeAbort { task_id } => {
                tracing::info!(task_id = %task_id, "Aborting merge");
                self.handle_merge_abort(task_id).await?;
            }
            DaemonCommand::MergeSkip { task_id, subtask_id, reason } => {
                tracing::info!(task_id = %task_id, subtask_id = %subtask_id, reason = %reason, "Skipping subtask merge");
                self.handle_merge_skip(task_id, subtask_id, reason).await?;
            }
            DaemonCommand::CheckMergeComplete { task_id } => {
                tracing::info!(task_id = %task_id, "Checking merge completion");
                self.handle_check_merge_complete(task_id).await?;
            }

            // =========================================================================
            // Completion Action Commands
            // =========================================================================

            DaemonCommand::RetryCompletionAction {
                task_id,
                task_name,
                action,
                target_repo_path,
                target_branch,
            } => {
                tracing::info!(
                    task_id = %task_id,
                    task_name = %task_name,
                    action = %action,
                    target_repo_path = %target_repo_path,
                    target_branch = ?target_branch,
                    "Retrying completion action"
                );
                self.handle_retry_completion_action(task_id, task_name, action, target_repo_path, target_branch).await?;
            }

            DaemonCommand::CloneWorktree { task_id, target_dir } => {
                tracing::info!(
                    task_id = %task_id,
                    target_dir = %target_dir,
                    "Cloning worktree to target directory"
                );
                self.handle_clone_worktree(task_id, target_dir).await?;
            }

            DaemonCommand::CheckTargetExists { task_id, target_dir } => {
                tracing::debug!(
                    task_id = %task_id,
                    target_dir = %target_dir,
                    "Checking if target directory exists"
                );
                self.handle_check_target_exists(task_id, target_dir).await?;
            }

            // =========================================================================
            // Contract File Commands
            // =========================================================================

            DaemonCommand::ReadRepoFile {
                request_id,
                contract_id,
                file_path,
                repo_path,
            } => {
                tracing::info!(
                    request_id = %request_id,
                    contract_id = %contract_id,
                    file_path = %file_path,
                    repo_path = %repo_path,
                    "Reading file from repository"
                );
                self.handle_read_repo_file(request_id, file_path, repo_path).await?;
            }
            DaemonCommand::CreateBranch {
                task_id,
                branch_name,
                from_ref,
            } => {
                tracing::info!(
                    task_id = %task_id,
                    branch_name = %branch_name,
                    from_ref = ?from_ref,
                    "Creating branch"
                );
                self.handle_create_branch(task_id, branch_name, from_ref).await?;
            }
            DaemonCommand::MergeTaskToTarget {
                task_id,
                target_branch,
                squash,
            } => {
                tracing::info!(
                    task_id = %task_id,
                    target_branch = ?target_branch,
                    squash = squash,
                    "Merging task to target branch"
                );
                self.handle_merge_task_to_target(task_id, target_branch, squash).await?;
            }
            DaemonCommand::CreatePR {
                task_id,
                title,
                body,
                base_branch,
            } => {
                tracing::info!(
                    task_id = %task_id,
                    title = %title,
                    base_branch = %base_branch,
                    "Creating pull request"
                );
                self.handle_create_pr(task_id, title, body, base_branch).await?;
            }
            DaemonCommand::GetTaskDiff {
                task_id,
            } => {
                tracing::info!(task_id = %task_id, "Getting task diff");
                self.handle_get_task_diff(task_id).await?;
            }
        }
        Ok(())
    }

    /// Spawn a new task.
    #[allow(clippy::too_many_arguments)]
    pub async fn spawn_task(
        &self,
        task_id: Uuid,
        task_name: String,
        plan: String,
        repo_url: Option<String>,
        base_branch: Option<String>,
        target_branch: Option<String>,
        parent_task_id: Option<Uuid>,
        depth: i32,
        is_orchestrator: bool,
        is_supervisor: bool,
        target_repo_path: Option<String>,
        completion_action: Option<String>,
        continue_from_task_id: Option<Uuid>,
        copy_files: Option<Vec<String>>,
        contract_id: Option<Uuid>,
    ) -> TaskResult<()> {
        tracing::info!(task_id = %task_id, is_orchestrator = is_orchestrator, is_supervisor = is_supervisor, depth = depth, "=== SPAWN_TASK START ===");

        // Check if task already exists - allow re-spawning if in terminal state
        {
            let mut tasks = self.tasks.write().await;
            if let Some(existing) = tasks.get(&task_id) {
                if existing.state.is_terminal() {
                    // Task exists but is in terminal state (completed, failed, interrupted)
                    // Remove it so we can re-spawn
                    tracing::info!(task_id = %task_id, old_state = ?existing.state, "Removing terminated task to allow re-spawn");
                    tasks.remove(&task_id);
                } else {
                    // Task is still active, reject
                    tracing::warn!(task_id = %task_id, state = ?existing.state, "Task already exists and is active, rejecting spawn");
                    return Err(TaskError::AlreadyExists(task_id));
                }
            }
        }

        // Acquire semaphore permit
        tracing::info!(task_id = %task_id, "Acquiring concurrency permit...");
        let permit = self
            .semaphore
            .clone()
            .try_acquire_owned()
            .map_err(|_| {
                tracing::warn!(task_id = %task_id, "Concurrency limit reached, cannot spawn task");
                TaskError::ConcurrencyLimit
            })?;
        tracing::info!(task_id = %task_id, "Concurrency permit acquired");

        // Create task entry
        tracing::info!(task_id = %task_id, "Creating task entry in state: Initializing");
        let task = ManagedTask {
            id: task_id,
            task_name: task_name.clone(),
            state: TaskState::Initializing,
            worktree: None,
            plan: plan.clone(),
            repo_source: repo_url.clone(),
            base_branch: base_branch.clone(),
            target_branch: target_branch.clone(),
            parent_task_id,
            depth,
            is_orchestrator,
            is_supervisor,
            target_repo_path: target_repo_path.clone(),
            completion_action: completion_action.clone(),
            continue_from_task_id,
            copy_files: copy_files.clone(),
            contract_id,
            created_at: Instant::now(),
            started_at: None,
            completed_at: None,
            error: None,
        };

        self.tasks.write().await.insert(task_id, task);
        tracing::info!(task_id = %task_id, "Task entry created and stored");

        // Notify server of status change
        tracing::info!(task_id = %task_id, "Notifying server: pending -> initializing");
        self.send_status_change(task_id, "pending", "initializing").await;

        // Spawn task in background
        tracing::info!(task_id = %task_id, "Spawning background task runner");
        let inner = self.clone_inner();
        tokio::spawn(async move {
            let _permit = permit; // Hold permit until done
            tracing::info!(task_id = %task_id, "Background task runner started");

            if let Err(e) = inner.run_task(
                task_id, task_name, plan, repo_url, base_branch, target_branch,
                is_orchestrator, is_supervisor, target_repo_path, completion_action,
                continue_from_task_id, copy_files, contract_id
            ).await {
                tracing::error!(task_id = %task_id, error = %e, "Task execution failed");
                inner.mark_failed(task_id, &e.to_string()).await;
            }
            tracing::info!(task_id = %task_id, "Background task runner completed");
        });

        tracing::info!(task_id = %task_id, "=== SPAWN_TASK END (task running in background) ===");
        Ok(())
    }

    /// Clone inner state for spawned tasks.
    fn clone_inner(&self) -> TaskManagerInner {
        TaskManagerInner {
            worktree_manager: self.worktree_manager.clone(),
            process_manager: self.process_manager.clone(),
            temp_manager: self.temp_manager.clone(),
            tasks: self.tasks.clone(),
            ws_tx: self.ws_tx.clone(),
            task_inputs: self.task_inputs.clone(),
        }
    }

    /// Interrupt a task.
    pub async fn interrupt_task(&self, task_id: Uuid) -> TaskResult<()> {
        let mut tasks = self.tasks.write().await;
        let task = tasks.get_mut(&task_id).ok_or(TaskError::NotFound(task_id))?;

        if task.state.is_terminal() {
            return Ok(()); // Already done
        }

        let old_state = task.state;
        task.state = TaskState::Interrupted;
        task.completed_at = Some(Instant::now());

        // Notify server
        drop(tasks);
        self.send_status_change(task_id, old_state.as_str(), "interrupted").await;

        // Note: The process will be killed when the ClaudeProcess is dropped
        // Worktrees are kept until explicitly deleted

        Ok(())
    }

    /// Get list of active task IDs.
    pub async fn active_task_ids(&self) -> Vec<Uuid> {
        self.tasks
            .read()
            .await
            .iter()
            .filter(|(_, t)| t.state.is_active())
            .map(|(id, _)| *id)
            .collect()
    }

    /// Get task state.
    pub async fn get_task_state(&self, task_id: Uuid) -> Option<TaskState> {
        self.tasks.read().await.get(&task_id).map(|t| t.state)
    }

    /// Send status change notification to server.
    async fn send_status_change(&self, task_id: Uuid, old_status: &str, new_status: &str) {
        let msg = DaemonMessage::task_status_change(task_id, old_status, new_status);
        let _ = self.ws_tx.send(msg).await;
    }

    // =========================================================================
    // Merge Handler Methods
    // =========================================================================

    /// Get worktree path for a task, or return error if not found.
    /// First checks in-memory tasks, then scans the worktrees directory.
    async fn get_task_worktree_path(&self, task_id: Uuid) -> Result<std::path::PathBuf, DaemonError> {
        // First try to get from in-memory tasks
        {
            let tasks = self.tasks.read().await;
            if let Some(task) = tasks.get(&task_id) {
                if let Some(ref worktree) = task.worktree {
                    return Ok(worktree.path.clone());
                }
            }
        }

        // Task not in memory - scan worktrees directory for matching task ID
        let short_id = &task_id.to_string()[..8];
        let worktrees_dir = self.worktree_manager.base_dir();

        if let Ok(mut entries) = tokio::fs::read_dir(worktrees_dir).await {
            while let Ok(Some(entry)) = entries.next_entry().await {
                let name = entry.file_name();
                let name_str = name.to_string_lossy();
                if name_str.starts_with(short_id) {
                    let path = entry.path();
                    // Verify it's a valid git directory
                    if path.join(".git").exists() {
                        tracing::info!(
                            task_id = %task_id,
                            worktree_path = %path.display(),
                            "Found worktree by scanning directory"
                        );
                        return Ok(path);
                    }
                }
            }
        }

        Err(DaemonError::Task(TaskError::SetupFailed(
            format!("No worktree found for task {}. The worktree may have been cleaned up.", task_id)
        )))
    }

    /// Handle ListBranches command.
    async fn handle_list_branches(&self, task_id: Uuid) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        match self.worktree_manager.list_task_branches(&worktree_path).await {
            Ok(branches) => {
                let branch_infos: Vec<BranchInfo> = branches
                    .into_iter()
                    .map(|b| BranchInfo {
                        name: b.name,
                        task_id: b.task_id,
                        is_merged: b.is_merged,
                        last_commit: b.last_commit,
                        last_commit_message: b.last_commit_message,
                    })
                    .collect();

                let msg = DaemonMessage::BranchList {
                    task_id,
                    branches: branch_infos,
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                tracing::error!(task_id = %task_id, error = %e, "Failed to list branches");
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: e.to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
        }
        Ok(())
    }

    /// Handle MergeStart command.
    async fn handle_merge_start(&self, task_id: Uuid, source_branch: String) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        match self.worktree_manager.merge_branch(&worktree_path, &source_branch).await {
            Ok(None) => {
                // Merge succeeded without conflicts
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: true,
                    message: "Merge completed without conflicts".to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Ok(Some(conflicts)) => {
                // Merge has conflicts
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: format!("Merge has {} conflicts", conflicts.len()),
                    commit_sha: None,
                    conflicts: Some(conflicts),
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: e.to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
        }
        Ok(())
    }

    /// Handle MergeStatus command.
    async fn handle_merge_status(&self, task_id: Uuid) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        match self.worktree_manager.get_merge_state(&worktree_path).await {
            Ok(state) => {
                let msg = DaemonMessage::MergeStatusResponse {
                    task_id,
                    in_progress: state.in_progress,
                    source_branch: if state.in_progress { Some(state.source_branch) } else { None },
                    conflicted_files: state.conflicted_files,
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                tracing::error!(task_id = %task_id, error = %e, "Failed to get merge status");
                let msg = DaemonMessage::MergeStatusResponse {
                    task_id,
                    in_progress: false,
                    source_branch: None,
                    conflicted_files: vec![],
                };
                let _ = self.ws_tx.send(msg).await;
            }
        }
        Ok(())
    }

    /// Handle MergeResolve command.
    async fn handle_merge_resolve(&self, task_id: Uuid, file: String, strategy: String) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        let resolution = match strategy.to_lowercase().as_str() {
            "ours" => ConflictResolution::Ours,
            "theirs" => ConflictResolution::Theirs,
            _ => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: format!("Invalid strategy '{}', must be 'ours' or 'theirs'", strategy),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
                return Ok(());
            }
        };

        match self.worktree_manager.resolve_conflict(&worktree_path, &file, resolution).await {
            Ok(()) => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: true,
                    message: format!("Resolved conflict in {}", file),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: e.to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
        }
        Ok(())
    }

    /// Handle MergeCommit command.
    async fn handle_merge_commit(&self, task_id: Uuid, message: String) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        match self.worktree_manager.commit_merge(&worktree_path, &message).await {
            Ok(commit_sha) => {
                // Track this merge as completed (extract subtask ID from branch if possible)
                // For now, we'll track it when MergeSkip is called or based on branch names
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: true,
                    message: "Merge committed successfully".to_string(),
                    commit_sha: Some(commit_sha),
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: e.to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
        }
        Ok(())
    }

    /// Handle MergeAbort command.
    async fn handle_merge_abort(&self, task_id: Uuid) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        match self.worktree_manager.abort_merge(&worktree_path).await {
            Ok(()) => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: true,
                    message: "Merge aborted".to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                let msg = DaemonMessage::MergeResult {
                    task_id,
                    success: false,
                    message: e.to_string(),
                    commit_sha: None,
                    conflicts: None,
                };
                let _ = self.ws_tx.send(msg).await;
            }
        }
        Ok(())
    }

    /// Handle MergeSkip command.
    async fn handle_merge_skip(&self, task_id: Uuid, subtask_id: Uuid, reason: String) -> Result<(), DaemonError> {
        // Record that this subtask was skipped
        {
            let mut trackers = self.merge_trackers.write().await;
            let tracker = trackers.entry(task_id).or_insert_with(MergeTracker::default);
            tracker.skipped_subtasks.insert(subtask_id, reason.clone());
        }

        let msg = DaemonMessage::MergeResult {
            task_id,
            success: true,
            message: format!("Subtask {} skipped: {}", subtask_id, reason),
            commit_sha: None,
            conflicts: None,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle CheckMergeComplete command.
    async fn handle_check_merge_complete(&self, task_id: Uuid) -> Result<(), DaemonError> {
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        // Get all task branches
        let branches = match self.worktree_manager.list_task_branches(&worktree_path).await {
            Ok(b) => b,
            Err(e) => {
                let msg = DaemonMessage::MergeCompleteCheck {
                    task_id,
                    can_complete: false,
                    unmerged_branches: vec![format!("Error listing branches: {}", e)],
                    merged_count: 0,
                    skipped_count: 0,
                };
                let _ = self.ws_tx.send(msg).await;
                return Ok(());
            }
        };

        // Get tracker state
        let trackers = self.merge_trackers.read().await;
        let empty_merged: HashSet<Uuid> = HashSet::new();
        let empty_skipped: HashMap<Uuid, String> = HashMap::new();
        let tracker = trackers.get(&task_id);
        let merged_set = tracker.map(|t| &t.merged_subtasks).unwrap_or(&empty_merged);
        let skipped_set = tracker.map(|t| &t.skipped_subtasks).unwrap_or(&empty_skipped);

        let mut merged_count = 0u32;
        let mut skipped_count = 0u32;
        let mut unmerged_branches = Vec::new();

        for branch in &branches {
            if branch.is_merged {
                merged_count += 1;
            } else if let Some(subtask_id) = branch.task_id {
                if merged_set.contains(&subtask_id) {
                    merged_count += 1;
                } else if skipped_set.contains_key(&subtask_id) {
                    skipped_count += 1;
                } else {
                    unmerged_branches.push(branch.name.clone());
                }
            } else {
                // Branch without task ID - check if it's merged
                unmerged_branches.push(branch.name.clone());
            }
        }

        let can_complete = unmerged_branches.is_empty();

        let msg = DaemonMessage::MergeCompleteCheck {
            task_id,
            can_complete,
            unmerged_branches,
            merged_count,
            skipped_count,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Mark a subtask as merged in the tracker.
    #[allow(dead_code)]
    pub async fn mark_subtask_merged(&self, orchestrator_task_id: Uuid, subtask_id: Uuid) {
        let mut trackers = self.merge_trackers.write().await;
        let tracker = trackers.entry(orchestrator_task_id).or_insert_with(MergeTracker::default);
        tracker.merged_subtasks.insert(subtask_id);
    }

    // =========================================================================
    // Completion Action Handler Methods
    // =========================================================================

    /// Handle RetryCompletionAction command.
    async fn handle_retry_completion_action(
        &self,
        task_id: Uuid,
        task_name: String,
        action: String,
        target_repo_path: String,
        target_branch: Option<String>,
    ) -> Result<(), DaemonError> {
        // Get the task's worktree path
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        // Execute the completion action
        let inner = self.clone_inner();
        let result = inner.execute_completion_action(
            task_id,
            &task_name,
            &worktree_path,
            &action,
            Some(target_repo_path.as_str()),
            target_branch.as_deref(),
        ).await;

        // Send result back to server
        let msg = match result {
            Ok(pr_url) => DaemonMessage::CompletionActionResult {
                task_id,
                success: true,
                message: match action.as_str() {
                    "branch" => format!("Branch pushed to {}", target_repo_path),
                    "merge" => format!("Merged into {}", target_branch.as_deref().unwrap_or("main")),
                    "pr" => format!("Pull request created"),
                    _ => format!("Completion action '{}' executed", action),
                },
                pr_url,
            },
            Err(e) => DaemonMessage::CompletionActionResult {
                task_id,
                success: false,
                message: e,
                pr_url: None,
            },
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle CloneWorktree command.
    async fn handle_clone_worktree(
        &self,
        task_id: Uuid,
        target_dir: String,
    ) -> Result<(), DaemonError> {
        // Get the task's worktree path
        let worktree_path = self.get_task_worktree_path(task_id).await?;

        // Expand tilde in target path
        let target_path = crate::daemon::worktree::expand_tilde(&target_dir);

        // Clone the worktree to target directory
        let result = self.worktree_manager.clone_worktree_to_directory(
            &worktree_path,
            &target_path,
        ).await;

        // Send result back to server
        let msg = match result {
            Ok(message) => DaemonMessage::CloneWorktreeResult {
                task_id,
                success: true,
                message,
                target_dir: Some(target_path.to_string_lossy().to_string()),
            },
            Err(e) => DaemonMessage::CloneWorktreeResult {
                task_id,
                success: false,
                message: e.to_string(),
                target_dir: None,
            },
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle CheckTargetExists command.
    async fn handle_check_target_exists(
        &self,
        task_id: Uuid,
        target_dir: String,
    ) -> Result<(), DaemonError> {
        // Expand tilde in target path
        let target_path = crate::daemon::worktree::expand_tilde(&target_dir);

        // Check if target exists
        let exists = self.worktree_manager.target_directory_exists(&target_path).await;

        // Send result back to server
        let msg = DaemonMessage::CheckTargetExistsResult {
            task_id,
            exists,
            target_dir: target_path.to_string_lossy().to_string(),
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle ReadRepoFile command.
    ///
    /// Reads a file from a repository on the daemon's filesystem and sends
    /// the content back to the server for syncing contract files.
    async fn handle_read_repo_file(
        &self,
        request_id: Uuid,
        file_path: String,
        repo_path: String,
    ) -> Result<(), DaemonError> {
        // Expand tilde in repo path
        let repo_path_expanded = crate::daemon::worktree::expand_tilde(&repo_path);

        // Construct full file path
        let full_path = repo_path_expanded.join(&file_path);

        // Try to read the file
        let (content, success, error) = match tokio::fs::read_to_string(&full_path).await {
            Ok(content) => (Some(content), true, None),
            Err(e) => {
                tracing::warn!(
                    request_id = %request_id,
                    file_path = %file_path,
                    repo_path = %repo_path,
                    full_path = %full_path.display(),
                    error = %e,
                    "Failed to read repo file"
                );
                (None, false, Some(e.to_string()))
            }
        };

        // Send result back to server
        let msg = DaemonMessage::RepoFileContent {
            request_id,
            file_path,
            content,
            success,
            error,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle CreateBranch command - create a new branch in a task's worktree.
    async fn handle_create_branch(
        &self,
        task_id: Uuid,
        branch_name: String,
        from_ref: Option<String>,
    ) -> Result<(), DaemonError> {
        // Get task's worktree path
        let worktree_path = {
            let tasks = self.tasks.read().await;
            tasks.get(&task_id)
                .and_then(|t| t.worktree.as_ref())
                .map(|w| w.path.clone())
        };

        let (success, message) = if let Some(path) = worktree_path {
            // Build git checkout command
            let mut cmd = tokio::process::Command::new("git");
            cmd.current_dir(&path);
            cmd.arg("checkout").arg("-b").arg(&branch_name);

            if let Some(ref from) = from_ref {
                cmd.arg(from);
            }

            match cmd.output().await {
                Ok(output) => {
                    if output.status.success() {
                        (true, format!("Branch '{}' created successfully", branch_name))
                    } else {
                        let stderr = String::from_utf8_lossy(&output.stderr);
                        (false, format!("Failed to create branch: {}", stderr))
                    }
                }
                Err(e) => (false, format!("Failed to execute git: {}", e)),
            }
        } else {
            (false, format!("Task {} not found or has no worktree", task_id))
        };

        let msg = DaemonMessage::BranchCreated {
            task_id,
            success,
            branch_name,
            message,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle MergeTaskToTarget command - merge a task's changes to a target branch.
    async fn handle_merge_task_to_target(
        &self,
        task_id: Uuid,
        target_branch: Option<String>,
        squash: bool,
    ) -> Result<(), DaemonError> {
        // Get task info
        let task_info = {
            let tasks = self.tasks.read().await;
            tasks.get(&task_id).map(|t| (
                t.worktree.as_ref().map(|w| w.path.clone()),
                t.base_branch.clone(),
            ))
        };

        let (success, message, commit_sha, conflicts) = match task_info {
            Some((Some(worktree_path), base)) => {
                let target = target_branch.unwrap_or_else(|| base.unwrap_or_else(|| "main".to_string()));

                // First, stage and commit any uncommitted changes
                let add_result = tokio::process::Command::new("git")
                    .current_dir(&worktree_path)
                    .args(["add", "-A"])
                    .output()
                    .await;

                if let Err(e) = add_result {
                    (false, format!("Failed to stage changes: {}", e), None, None)
                } else {
                    // Commit if there are staged changes
                    let commit_result = tokio::process::Command::new("git")
                        .current_dir(&worktree_path)
                        .args(["commit", "-m", "Task completion checkpoint", "--allow-empty"])
                        .output()
                        .await;

                    if let Err(e) = commit_result {
                        tracing::warn!(task_id = %task_id, error = %e, "Commit failed (may be empty)");
                    }

                    // Get current branch name
                    let branch_output = tokio::process::Command::new("git")
                        .current_dir(&worktree_path)
                        .args(["rev-parse", "--abbrev-ref", "HEAD"])
                        .output()
                        .await;

                    let source_branch = branch_output
                        .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string())
                        .unwrap_or_else(|_| "unknown".to_string());

                    // Checkout target branch
                    let checkout = tokio::process::Command::new("git")
                        .current_dir(&worktree_path)
                        .args(["checkout", &target])
                        .output()
                        .await;

                    match checkout {
                        Ok(output) if output.status.success() => {
                            // Merge the source branch
                            let mut merge_cmd = tokio::process::Command::new("git");
                            merge_cmd.current_dir(&worktree_path);
                            merge_cmd.arg("merge");
                            if squash {
                                merge_cmd.arg("--squash");
                            }
                            merge_cmd.arg(&source_branch);
                            merge_cmd.arg("-m").arg(format!("Merge task {} into {}", task_id, target));

                            match merge_cmd.output().await {
                                Ok(output) if output.status.success() => {
                                    // Get the commit SHA
                                    let sha_output = tokio::process::Command::new("git")
                                        .current_dir(&worktree_path)
                                        .args(["rev-parse", "HEAD"])
                                        .output()
                                        .await;

                                    let sha = sha_output
                                        .ok()
                                        .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string());

                                    if squash {
                                        // For squash merge, we need to commit
                                        let _ = tokio::process::Command::new("git")
                                            .current_dir(&worktree_path)
                                            .args(["commit", "-m", &format!("Squashed merge of task {}", task_id)])
                                            .output()
                                            .await;
                                    }

                                    (true, format!("Merged {} into {}", source_branch, target), sha, None)
                                }
                                Ok(output) => {
                                    let stderr = String::from_utf8_lossy(&output.stderr);
                                    // Check for merge conflicts
                                    if stderr.contains("CONFLICT") {
                                        let conflict_files = stderr
                                            .lines()
                                            .filter(|l| l.contains("CONFLICT"))
                                            .map(|l| l.to_string())
                                            .collect::<Vec<_>>();
                                        (false, "Merge conflicts detected".to_string(), None, Some(conflict_files))
                                    } else {
                                        (false, format!("Merge failed: {}", stderr), None, None)
                                    }
                                }
                                Err(e) => (false, format!("Failed to merge: {}", e), None, None),
                            }
                        }
                        Ok(output) => {
                            let stderr = String::from_utf8_lossy(&output.stderr);
                            (false, format!("Failed to checkout target branch: {}", stderr), None, None)
                        }
                        Err(e) => (false, format!("Failed to checkout: {}", e), None, None),
                    }
                }
            }
            Some((None, _)) => (false, format!("Task {} has no worktree", task_id), None, None),
            None => (false, format!("Task {} not found", task_id), None, None),
        };

        let msg = DaemonMessage::MergeToTargetResult {
            task_id,
            success,
            message,
            commit_sha,
            conflicts,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle CreatePR command - create a pull request for a task's changes.
    async fn handle_create_pr(
        &self,
        task_id: Uuid,
        title: String,
        body: Option<String>,
        base_branch: String,
    ) -> Result<(), DaemonError> {
        // Get task's worktree path
        let worktree_path = {
            let tasks = self.tasks.read().await;
            tasks.get(&task_id)
                .and_then(|t| t.worktree.as_ref())
                .map(|w| w.path.clone())
        };

        let (success, message, pr_url, pr_number) = if let Some(path) = worktree_path {
            // Push the current branch first
            let push_result = tokio::process::Command::new("git")
                .current_dir(&path)
                .args(["push", "-u", "origin", "HEAD"])
                .output()
                .await;

            if let Err(e) = push_result {
                (false, format!("Failed to push branch: {}", e), None, None)
            } else {
                // Create PR using gh CLI
                let mut pr_cmd = tokio::process::Command::new("gh");
                pr_cmd.current_dir(&path);
                pr_cmd.args(["pr", "create", "--title", &title, "--base", &base_branch]);

                if let Some(ref body_text) = body {
                    pr_cmd.args(["--body", body_text]);
                } else {
                    pr_cmd.args(["--body", ""]);
                }

                match pr_cmd.output().await {
                    Ok(output) if output.status.success() => {
                        let stdout = String::from_utf8_lossy(&output.stdout);
                        // gh pr create outputs the PR URL
                        let url = stdout.lines().last().map(|s| s.trim().to_string());
                        // Extract PR number from URL
                        let number = url.as_ref().and_then(|u| {
                            u.split('/').last().and_then(|n| n.parse::<i32>().ok())
                        });
                        (true, "Pull request created".to_string(), url, number)
                    }
                    Ok(output) => {
                        let stderr = String::from_utf8_lossy(&output.stderr);
                        (false, format!("Failed to create PR: {}", stderr), None, None)
                    }
                    Err(e) => (false, format!("Failed to run gh: {}", e), None, None),
                }
            }
        } else {
            (false, format!("Task {} not found or has no worktree", task_id), None, None)
        };

        let msg = DaemonMessage::PRCreated {
            task_id,
            success,
            message,
            pr_url,
            pr_number,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }

    /// Handle GetTaskDiff command - get the diff for a task's changes.
    async fn handle_get_task_diff(
        &self,
        task_id: Uuid,
    ) -> Result<(), DaemonError> {
        // Get task's worktree path
        let worktree_path = {
            let tasks = self.tasks.read().await;
            tasks.get(&task_id)
                .and_then(|t| t.worktree.as_ref())
                .map(|w| w.path.clone())
        };

        let (success, diff, error) = if let Some(path) = worktree_path {
            // Get diff of all changes (staged and unstaged)
            let diff_result = tokio::process::Command::new("git")
                .current_dir(&path)
                .args(["diff", "HEAD"])
                .output()
                .await;

            match diff_result {
                Ok(output) if output.status.success() => {
                    let diff_text = String::from_utf8_lossy(&output.stdout).to_string();
                    if diff_text.is_empty() {
                        // No uncommitted changes, show diff from base
                        let base_diff = tokio::process::Command::new("git")
                            .current_dir(&path)
                            .args(["log", "-p", "--reverse", "HEAD~10..HEAD", "--"])
                            .output()
                            .await;

                        match base_diff {
                            Ok(o) => (true, Some(String::from_utf8_lossy(&o.stdout).to_string()), None),
                            Err(e) => (false, None, Some(format!("Failed to get diff: {}", e))),
                        }
                    } else {
                        (true, Some(diff_text), None)
                    }
                }
                Ok(output) => {
                    let stderr = String::from_utf8_lossy(&output.stderr);
                    (false, None, Some(format!("Git diff failed: {}", stderr)))
                }
                Err(e) => (false, None, Some(format!("Failed to run git: {}", e))),
            }
        } else {
            (false, None, Some(format!("Task {} not found or has no worktree", task_id)))
        };

        let msg = DaemonMessage::TaskDiff {
            task_id,
            success,
            diff,
            error,
        };
        let _ = self.ws_tx.send(msg).await;
        Ok(())
    }
}

/// Inner state for spawned tasks (cloneable).
struct TaskManagerInner {
    worktree_manager: Arc<WorktreeManager>,
    process_manager: Arc<ProcessManager>,
    temp_manager: Arc<TempManager>,
    tasks: Arc<RwLock<HashMap<Uuid, ManagedTask>>>,
    ws_tx: mpsc::Sender<DaemonMessage>,
    task_inputs: Arc<RwLock<HashMap<Uuid, mpsc::Sender<String>>>>,
}

impl TaskManagerInner {
    /// Run a task to completion.
    #[allow(clippy::too_many_arguments)]
    async fn run_task(
        &self,
        task_id: Uuid,
        task_name: String,
        plan: String,
        repo_source: Option<String>,
        base_branch: Option<String>,
        target_branch: Option<String>,
        is_orchestrator: bool,
        is_supervisor: bool,
        target_repo_path: Option<String>,
        completion_action: Option<String>,
        continue_from_task_id: Option<Uuid>,
        copy_files: Option<Vec<String>>,
        contract_id: Option<Uuid>,
    ) -> Result<(), DaemonError> {
        tracing::info!(task_id = %task_id, is_orchestrator = is_orchestrator, is_supervisor = is_supervisor, "=== RUN_TASK START ===");

        // Determine working directory
        let working_dir = if let Some(ref source) = repo_source {
            if is_new_repo_request(source) {
                // Explicit new repo request: new:// or new://project-name
                tracing::info!(
                    task_id = %task_id,
                    source = %source,
                    "Creating new git repository"
                );

                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Initializing new git repository...\n"),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;

                let worktree_info = self.worktree_manager
                    .init_new_repo(task_id, source)
                    .await
                    .map_err(|e| DaemonError::Task(TaskError::SetupFailed(e.to_string())))?;

                tracing::info!(
                    task_id = %task_id,
                    path = %worktree_info.path.display(),
                    "New repository created"
                );

                // Store worktree info
                {
                    let mut tasks = self.tasks.write().await;
                    if let Some(task) = tasks.get_mut(&task_id) {
                        task.worktree = Some(worktree_info.clone());
                    }
                }

                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Repository ready at {}\n", worktree_info.path.display()),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;

                worktree_info.path
            } else {
                // Send progress message
                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Setting up worktree from {}...\n", source),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;

                // Ensure source repo exists (clone if URL, verify if path)
                let source_repo = self.worktree_manager.ensure_repo(source).await
                    .map_err(|e| DaemonError::Task(TaskError::SetupFailed(e.to_string())))?;

                // Detect or use provided base branch
                let branch = if let Some(ref b) = base_branch {
                    b.clone()
                } else {
                    self.worktree_manager.detect_default_branch(&source_repo).await
                        .map_err(|e| DaemonError::Task(TaskError::SetupFailed(e.to_string())))?
                };

                tracing::info!(
                    task_id = %task_id,
                    source = %source,
                    branch = %branch,
                    continue_from_task_id = ?continue_from_task_id,
                    "Setting up worktree"
                );

                // Create worktree - either from scratch or copying from another task
                let task_name = format!("task-{}", &task_id.to_string()[..8]);
                let worktree_info = if let Some(from_task_id) = continue_from_task_id {
                    // Find the source task's worktree path
                    let source_worktree = self.find_worktree_for_task(from_task_id).await
                        .map_err(|e| DaemonError::Task(TaskError::SetupFailed(
                            format!("Cannot continue from task {}: {}", from_task_id, e)
                        )))?;

                    let msg = DaemonMessage::task_output(
                        task_id,
                        format!("Continuing from task {} worktree...\n", &from_task_id.to_string()[..8]),
                        false,
                    );
                    let _ = self.ws_tx.send(msg).await;

                    // Create worktree by copying from source task
                    self.worktree_manager
                        .create_worktree_from_task(&source_worktree, task_id, &task_name)
                        .await
                        .map_err(|e| DaemonError::Task(TaskError::SetupFailed(e.to_string())))?
                } else {
                    // Create fresh worktree from repo
                    self.worktree_manager
                        .create_worktree(&source_repo, task_id, &task_name, &branch)
                        .await
                        .map_err(|e| DaemonError::Task(TaskError::SetupFailed(e.to_string())))?
                };

                tracing::info!(
                    task_id = %task_id,
                    worktree_path = %worktree_info.path.display(),
                    branch = %worktree_info.branch,
                    continued_from = ?continue_from_task_id,
                    "Worktree created"
                );

                // Store worktree info
                {
                    let mut tasks = self.tasks.write().await;
                    if let Some(task) = tasks.get_mut(&task_id) {
                        task.worktree = Some(worktree_info.clone());
                    }
                }

                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Worktree ready at {}\n", worktree_info.path.display()),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;

                worktree_info.path
            }
        } else {
            // No repo specified - use managed temp directory in ~/.makima/temp/
            tracing::info!(task_id = %task_id, "Creating managed temp directory (no repo)");

            let msg = DaemonMessage::task_output(
                task_id,
                "Creating temporary working directory...\n".to_string(),
                false,
            );
            let _ = self.ws_tx.send(msg).await;

            let temp_dir = self.temp_manager.create_task_dir(task_id).await?;

            let msg = DaemonMessage::task_output(
                task_id,
                format!("Working directory ready at {}\n", temp_dir.display()),
                false,
            );
            let _ = self.ws_tx.send(msg).await;

            temp_dir
        };

        // Copy files from parent task's worktree if specified
        if let Some(ref files) = copy_files {
            if !files.is_empty() {
                // Get the parent task ID to find its worktree
                let parent_task_id = {
                    let tasks = self.tasks.read().await;
                    tasks.get(&task_id).and_then(|t| t.parent_task_id)
                };

                if let Some(parent_id) = parent_task_id {
                    match self.find_worktree_for_task(parent_id).await {
                        Ok(parent_worktree) => {
                            let msg = DaemonMessage::task_output(
                                task_id,
                                format!("Copying {} files from orchestrator...\n", files.len()),
                                false,
                            );
                            let _ = self.ws_tx.send(msg).await;

                            for file_path in files {
                                let source = parent_worktree.join(file_path);
                                let dest = working_dir.join(file_path);

                                // Create parent directories if needed
                                if let Some(parent) = dest.parent() {
                                    if let Err(e) = tokio::fs::create_dir_all(parent).await {
                                        tracing::warn!(
                                            task_id = %task_id,
                                            file = %file_path,
                                            error = %e,
                                            "Failed to create parent directory for file"
                                        );
                                        continue;
                                    }
                                }

                                // Copy the file
                                match tokio::fs::copy(&source, &dest).await {
                                    Ok(_) => {
                                        tracing::info!(
                                            task_id = %task_id,
                                            source = %source.display(),
                                            dest = %dest.display(),
                                            "Copied file from orchestrator"
                                        );
                                    }
                                    Err(e) => {
                                        tracing::warn!(
                                            task_id = %task_id,
                                            source = %source.display(),
                                            dest = %dest.display(),
                                            error = %e,
                                            "Failed to copy file from orchestrator"
                                        );
                                        // Notify but don't fail - the file might be optional
                                        let msg = DaemonMessage::task_output(
                                            task_id,
                                            format!("Warning: Could not copy {}: {}\n", file_path, e),
                                            false,
                                        );
                                        let _ = self.ws_tx.send(msg).await;
                                    }
                                }
                            }

                            let msg = DaemonMessage::task_output(
                                task_id,
                                "Files copied from orchestrator.\n".to_string(),
                                false,
                            );
                            let _ = self.ws_tx.send(msg).await;
                        }
                        Err(e) => {
                            tracing::warn!(
                                task_id = %task_id,
                                parent_id = %parent_id,
                                error = %e,
                                "Could not find parent task worktree for file copying"
                            );
                        }
                    }
                } else {
                    tracing::warn!(
                        task_id = %task_id,
                        "copy_files specified but no parent_task_id"
                    );
                }
            }
        }

        // Update state to Starting
        tracing::info!(task_id = %task_id, "Updating state: Initializing -> Starting");
        self.update_state(task_id, TaskState::Starting).await;
        self.send_status_change(task_id, "initializing", "starting").await;

        // Check Claude is available
        match self.process_manager.check_claude_available().await {
            Ok(version) => {
                tracing::info!(task_id = %task_id, version = %version, "Claude Code available");
                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Claude Code {} ready\n", version),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;
            }
            Err(e) => {
                let err_msg = format!("Claude Code not available: {}", e);
                tracing::error!(task_id = %task_id, error = %err_msg);
                return Err(DaemonError::Task(TaskError::SetupFailed(err_msg)));
            }
        }

        // Set up supervisor, orchestrator, or subtask mode
        let (extra_env, full_plan, system_prompt) = if is_supervisor {
            // Supervisor mode: long-running contract orchestrator
            tracing::info!(task_id = %task_id, working_dir = %working_dir.display(), "Setting up supervisor mode");

            let msg = DaemonMessage::task_output(
                task_id,
                "Setting up supervisor environment...\n".to_string(),
                false,
            );
            let _ = self.ws_tx.send(msg).await;

            // Generate tool key for API access
            let tool_key = generate_tool_key();
            tracing::info!(task_id = %task_id, tool_key_len = tool_key.len(), "Generated tool key for supervisor");

            // Register tool key with server
            let register_msg = DaemonMessage::register_tool_key(task_id, tool_key.clone());
            if self.ws_tx.send(register_msg).await.is_err() {
                tracing::warn!(task_id = %task_id, "Failed to register tool key");
            } else {
                tracing::info!(task_id = %task_id, "Tool key registration message sent to server");
            }

            // Set up environment variables for makima CLI
            let mut env = HashMap::new();
            // TODO: Make API URL configurable
            env.insert("MAKIMA_API_URL".to_string(), "http://localhost:8080".to_string());
            env.insert("MAKIMA_API_KEY".to_string(), tool_key.clone());
            env.insert("MAKIMA_TASK_ID".to_string(), task_id.to_string());
            // Supervisor needs contract ID for its tools
            if let Some(cid) = contract_id {
                env.insert("MAKIMA_CONTRACT_ID".to_string(), cid.to_string());
            }

            tracing::info!(
                task_id = %task_id,
                api_url = "http://localhost:8080",
                tool_key_preview = &tool_key[..8.min(tool_key.len())],
                "Set supervisor environment variables"
            );

            // For supervisor, pass instructions as SYSTEM PROMPT (not user message)
            // This ensures Claude treats them as behavioral constraints
            let supervisor_user_plan = format!(
                "Contract goal:\n{}",
                plan
            );

            let msg = DaemonMessage::task_output(
                task_id,
                "Supervisor environment ready (makima CLI available)\n".to_string(),
                false,
            );
            let _ = self.ws_tx.send(msg).await;

            // Return system prompt separately - it will be passed via --system-prompt flag
            (Some(env), supervisor_user_plan, Some(SUPERVISOR_SYSTEM_PROMPT.to_string()))
        } else if is_orchestrator {
            tracing::info!(task_id = %task_id, working_dir = %working_dir.display(), "Setting up orchestrator mode");

            let msg = DaemonMessage::task_output(
                task_id,
                "Setting up orchestrator environment...\n".to_string(),
                false,
            );
            let _ = self.ws_tx.send(msg).await;

            // Generate tool key for API access
            let tool_key = generate_tool_key();
            tracing::info!(task_id = %task_id, tool_key_len = tool_key.len(), "Generated tool key for orchestrator");

            // Register tool key with server
            let register_msg = DaemonMessage::register_tool_key(task_id, tool_key.clone());
            if self.ws_tx.send(register_msg).await.is_err() {
                tracing::warn!(task_id = %task_id, "Failed to register tool key");
            } else {
                tracing::info!(task_id = %task_id, "Tool key registration message sent to server");
            }

            // Set up environment variables for makima CLI
            let mut env = HashMap::new();
            // TODO: Make API URL configurable
            env.insert("MAKIMA_API_URL".to_string(), "http://localhost:8080".to_string());
            env.insert("MAKIMA_API_KEY".to_string(), tool_key.clone());
            env.insert("MAKIMA_TASK_ID".to_string(), task_id.to_string());

            tracing::info!(
                task_id = %task_id,
                api_url = "http://localhost:8080",
                tool_key_preview = &tool_key[..8.min(tool_key.len())],
                "Set orchestrator environment variables"
            );

            // For orchestrator, pass instructions as SYSTEM PROMPT
            let orchestrator_user_plan = format!(
                "Your task:\n{}",
                plan
            );

            let msg = DaemonMessage::task_output(
                task_id,
                "Orchestrator environment ready (makima CLI available)\n".to_string(),
                false,
            );
            let _ = self.ws_tx.send(msg).await;

            (Some(env), orchestrator_user_plan, Some(ORCHESTRATOR_SYSTEM_PROMPT.to_string()))
        } else {
            tracing::info!(task_id = %task_id, "Running as regular subtask (not orchestrator)");
            // For subtasks, pass worktree isolation instructions as system prompt
            let subtask_user_plan = format!(
                "Your task:\n{}",
                plan
            );
            (None, subtask_user_plan, Some(SUBTASK_SYSTEM_PROMPT.to_string()))
        };

        // Add contract environment if task has contract_id (skip for supervisors - they already have it)
        let (extra_env, full_plan, system_prompt) = if let Some(cid) = contract_id {
            if is_supervisor {
                // Supervisors already have contract ID and API access set up
                tracing::info!(task_id = %task_id, contract_id = %cid, "Supervisor already has contract integration");
                (extra_env, full_plan, system_prompt)
            } else {
                tracing::info!(task_id = %task_id, contract_id = %cid, "Setting up contract integration");

                // Set up environment variables for makima CLI
                let mut env = extra_env.unwrap_or_default();
                env.insert("MAKIMA_CONTRACT_ID".to_string(), cid.to_string());

                // If not already an orchestrator, we need API access for makima CLI
                if !is_orchestrator {
                    // Generate tool key for API access
                    let tool_key = generate_tool_key();
                    tracing::info!(task_id = %task_id, "Generated tool key for contract access");

                    // Register tool key with server
                    let register_msg = DaemonMessage::register_tool_key(task_id, tool_key.clone());
                    if self.ws_tx.send(register_msg).await.is_err() {
                        tracing::warn!(task_id = %task_id, "Failed to register contract tool key");
                    }

                    env.insert("MAKIMA_API_URL".to_string(), "http://localhost:8080".to_string());
                    env.insert("MAKIMA_API_KEY".to_string(), tool_key);
                    env.insert("MAKIMA_TASK_ID".to_string(), task_id.to_string());
                }

                let msg = DaemonMessage::task_output(
                    task_id,
                    "Contract integration ready (makima CLI available)\n".to_string(),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;

                // Prepend contract integration prompt to the plan so the task knows to use makima CLI
                let contract_plan = format!(
                    "{}{}",
                    CONTRACT_INTEGRATION_PROMPT,
                    full_plan
                );

                (Some(env), contract_plan, system_prompt)
            }
        } else {
            (extra_env, full_plan, system_prompt)
        };

        // Spawn Claude process
        let plan_bytes = full_plan.len();
        let plan_chars = full_plan.chars().count();
        // Rough token estimate: ~4 chars per token for English
        let estimated_tokens = plan_chars / 4;

        tracing::info!(
            task_id = %task_id,
            working_dir = %working_dir.display(),
            is_orchestrator = is_orchestrator,
            plan_bytes = plan_bytes,
            plan_chars = plan_chars,
            estimated_tokens = estimated_tokens,
            "Spawning Claude process"
        );

        // Warn if plan is very large (Claude's context is typically 100k-200k tokens)
        if estimated_tokens > 50_000 {
            tracing::warn!(task_id = %task_id, estimated_tokens = estimated_tokens, "Plan is very large - may hit context limits!");
            let msg = DaemonMessage::task_output(
                task_id,
                format!("Warning: Plan is very large (~{} tokens). This may cause issues.\n", estimated_tokens),
                false,
            );
            let _ = self.ws_tx.send(msg).await;
        }

        let msg = DaemonMessage::task_output(
            task_id,
            if is_orchestrator {
                format!("Starting Claude Code (orchestrator mode, ~{} tokens)...\n", estimated_tokens)
            } else {
                format!("Starting Claude Code (~{} tokens)...\n", estimated_tokens)
            },
            false,
        );
        let _ = self.ws_tx.send(msg).await;

        tracing::debug!(task_id = %task_id, has_system_prompt = system_prompt.is_some(), "Calling process_manager.spawn()...");
        let mut process = self.process_manager
            .spawn_with_system_prompt(&working_dir, &full_plan, extra_env, system_prompt.as_deref())
            .await
            .map_err(|e| {
                tracing::error!(task_id = %task_id, error = %e, "Failed to spawn Claude process");
                DaemonError::Task(TaskError::SetupFailed(e.to_string()))
            })?;
        tracing::info!(task_id = %task_id, "Claude process spawned successfully");

        // Set up input channel for this task so we can send messages to its stdin
        tracing::debug!(task_id = %task_id, "Setting up input channel...");
        let (input_tx, mut input_rx) = mpsc::channel::<String>(100);
        tracing::debug!(task_id = %task_id, "Acquiring task_inputs write lock...");
        self.task_inputs.write().await.insert(task_id, input_tx);
        tracing::debug!(task_id = %task_id, "Input channel registered");

        // Get stdin handle for input forwarding and completion signaling
        let stdin_handle = process.stdin_handle();
        let stdin_handle_for_completion = stdin_handle.clone();

        tracing::info!(task_id = %task_id, "Setting up stdin forwarder for task input (JSON protocol)");
        tokio::spawn(async move {
            tracing::info!(task_id = %task_id, "Stdin forwarder task started, waiting for messages...");
            while let Some(msg) = input_rx.recv().await {
                tracing::info!(task_id = %task_id, msg_len = msg.len(), msg_preview = %if msg.len() > 50 { &msg[..50] } else { &msg }, "Received message from input channel");

                // Format as JSON user message for stream-json input protocol
                let json_msg = ClaudeInputMessage::user(&msg);
                let json_line = match json_msg.to_json_line() {
                    Ok(line) => line,
                    Err(e) => {
                        tracing::error!(task_id = %task_id, error = %e, "Failed to serialize input message");
                        continue;
                    }
                };

                tracing::debug!(task_id = %task_id, json_line = %json_line.trim(), "Formatted JSON line for stdin");

                let mut stdin_guard = stdin_handle.lock().await;
                if let Some(ref mut stdin) = *stdin_guard {
                    tracing::debug!(task_id = %task_id, "Acquired stdin lock, writing...");
                    if stdin.write_all(json_line.as_bytes()).await.is_err() {
                        tracing::warn!(task_id = %task_id, "Failed to write to stdin, breaking");
                        break;
                    }
                    if stdin.flush().await.is_err() {
                        tracing::warn!(task_id = %task_id, "Failed to flush stdin, breaking");
                        break;
                    }
                    tracing::info!(task_id = %task_id, json_len = json_line.len(), "Successfully wrote user message to Claude stdin");
                } else {
                    tracing::warn!(task_id = %task_id, "Stdin is None (already closed), cannot send message");
                    break;
                }
            }
            tracing::info!(task_id = %task_id, "Stdin forwarder task ended (channel closed or stdin unavailable)");
        });

        // Update state to Running
        {
            tracing::debug!(task_id = %task_id, "Acquiring tasks write lock for Running state update");
            let mut tasks = self.tasks.write().await;
            if let Some(task) = tasks.get_mut(&task_id) {
                task.state = TaskState::Running;
                task.started_at = Some(Instant::now());
            }
            tracing::debug!(task_id = %task_id, "Released tasks write lock");
        }
        tracing::info!(task_id = %task_id, "Updating state: Starting -> Running");
        self.send_status_change(task_id, "starting", "running").await;
        tracing::debug!(task_id = %task_id, "Sent status change notification");

        // Stream output with startup timeout check
        tracing::info!(task_id = %task_id, "Starting output stream - waiting for Claude output...");
        tracing::debug!(task_id = %task_id, "Output will be forwarded via WebSocket to server");
        let ws_tx = self.ws_tx.clone();

        // For auth error detection
        let claude_command = self.process_manager.claude_command().to_string();
        let daemon_hostname = hostname::get().ok().and_then(|h| h.into_string().ok());
        let mut auth_error_handled = false;

        let mut output_count = 0u64;
        let mut output_bytes = 0usize;
        let startup_timeout = tokio::time::Duration::from_secs(30);
        let mut startup_check = tokio::time::interval(tokio::time::Duration::from_secs(5));
        startup_check.set_missed_tick_behavior(tokio::time::MissedTickBehavior::Skip);
        let startup_deadline = tokio::time::Instant::now() + startup_timeout;

        loop {
            tokio::select! {
                maybe_line = process.next_output() => {
                    match maybe_line {
                        Some(line) => {
                            output_count += 1;
                            output_bytes += line.content.len();

                            if output_count == 1 {
                                tracing::info!(task_id = %task_id, "Received first output line from Claude");
                            }
                            if output_count % 100 == 0 {
                                tracing::debug!(task_id = %task_id, output_count = output_count, output_bytes = output_bytes, "Output progress");
                            }

                            // Log output details for debugging
                            tracing::trace!(
                                task_id = %task_id,
                                line_num = output_count,
                                content_len = line.content.len(),
                                is_stdout = line.is_stdout,
                                json_type = ?line.json_type,
                                "Forwarding output to WebSocket"
                            );

                            // Check if this is a "result" message indicating task completion
                            // With --input-format=stream-json, Claude waits for more input after completion
                            // We close stdin to signal EOF and let the process exit
                            if line.json_type.as_deref() == Some("result") {
                                tracing::info!(task_id = %task_id, "Received result message, closing stdin to signal completion");
                                let mut stdin_guard = stdin_handle_for_completion.lock().await;
                                if let Some(mut stdin) = stdin_guard.take() {
                                    let _ = stdin.shutdown().await;
                                }
                            }

                            // Check for OAuth auth error before sending output
                            let content_for_auth_check = line.content.clone();
                            let json_type_for_auth_check = line.json_type.clone();
                            let is_stdout_for_auth_check = line.is_stdout;

                            let msg = DaemonMessage::task_output(task_id, line.content, false);
                            if ws_tx.send(msg).await.is_err() {
                                tracing::warn!(task_id = %task_id, "Failed to send output, channel closed");
                                break;
                            }

                            // Detect OAuth token expiration and trigger remote login flow
                            if !auth_error_handled && is_oauth_auth_error(&content_for_auth_check, json_type_for_auth_check.as_deref(), is_stdout_for_auth_check) {
                                auth_error_handled = true;
                                tracing::warn!(task_id = %task_id, "OAuth authentication error detected, initiating remote login flow");

                                // Spawn claude setup-token to get login URL
                                if let Some(login_url) = get_oauth_login_url(&claude_command).await {
                                    tracing::info!(task_id = %task_id, login_url = %login_url, "Got OAuth login URL");
                                    let auth_msg = DaemonMessage::AuthenticationRequired {
                                        task_id: Some(task_id),
                                        login_url,
                                        hostname: daemon_hostname.clone(),
                                    };
                                    if ws_tx.send(auth_msg).await.is_err() {
                                        tracing::warn!(task_id = %task_id, "Failed to send auth required message");
                                    }
                                } else {
                                    tracing::error!(task_id = %task_id, "Failed to get OAuth login URL from setup-token");
                                    let fallback_msg = DaemonMessage::task_output(
                                        task_id,
                                        format!("Authentication required on daemon{}. Please run 'claude /login' on the daemon machine.\n",
                                            daemon_hostname.as_ref().map(|h| format!(" ({})", h)).unwrap_or_default()),
                                        false,
                                    );
                                    let _ = ws_tx.send(fallback_msg).await;
                                }
                            }
                        }
                        None => {
                            tracing::info!(task_id = %task_id, output_count = output_count, output_bytes = output_bytes, "Output stream ended");
                            break;
                        }
                    }
                }
                _ = startup_check.tick(), if output_count == 0 => {
                    // Check if process is still alive
                    match process.try_wait() {
                        Ok(Some(exit_code)) => {
                            tracing::error!(task_id = %task_id, exit_code = exit_code, "Claude process exited before producing output!");
                            let msg = DaemonMessage::task_output(
                                task_id,
                                format!("Error: Claude process exited unexpectedly with code {}\n", exit_code),
                                false,
                            );
                            let _ = ws_tx.send(msg).await;
                            break;
                        }
                        Ok(None) => {
                            // Still running but no output
                            if tokio::time::Instant::now() > startup_deadline {
                                tracing::warn!(task_id = %task_id, "Claude process not producing output after 30s - may be stuck");
                                let msg = DaemonMessage::task_output(
                                    task_id,
                                    "Warning: Claude Code is taking longer than expected to start. It may be waiting for authentication or network access.\n".to_string(),
                                    false,
                                );
                                let _ = ws_tx.send(msg).await;
                            } else {
                                tracing::debug!(task_id = %task_id, "Claude process still running, waiting for output...");
                            }
                        }
                        Err(e) => {
                            tracing::error!(task_id = %task_id, error = %e, "Failed to check Claude process status");
                        }
                    }
                }
            }
        }

        // Wait for process to exit
        let exit_code = process.wait().await.unwrap_or(-1);

        // Clean up input channel for this task
        self.task_inputs.write().await.remove(&task_id);
        tracing::debug!(task_id = %task_id, "Removed task input channel");

        // Update state based on exit code
        let success = exit_code == 0;
        let new_state = if success {
            TaskState::Completed
        } else {
            TaskState::Failed
        };

        tracing::info!(
            task_id = %task_id,
            exit_code = exit_code,
            success = success,
            new_state = ?new_state,
            "Claude process exited, updating task state"
        );

        {
            let mut tasks = self.tasks.write().await;
            if let Some(task) = tasks.get_mut(&task_id) {
                task.state = new_state;
                task.completed_at = Some(Instant::now());
                if !success {
                    task.error = Some(format!("Process exited with code {}", exit_code));
                }
            }
        }

        // Execute completion action if task succeeded
        let completion_result = if success {
            if let Some(ref action) = completion_action {
                if action != "none" {
                    self.execute_completion_action(
                        task_id,
                        &task_name,
                        &working_dir,
                        action,
                        target_repo_path.as_deref(),
                        target_branch.as_deref(),
                    ).await
                } else {
                    Ok(None)
                }
            } else {
                Ok(None)
            }
        } else {
            Ok(None)
        };

        // Log completion action result
        match &completion_result {
            Ok(Some(pr_url)) => {
                tracing::info!(task_id = %task_id, pr_url = %pr_url, "Completion action created PR");
            }
            Ok(None) => {}
            Err(e) => {
                tracing::warn!(task_id = %task_id, error = %e, "Completion action failed (task still marked as done)");
            }
        }

        // Notify server - but NOT for supervisors which should never complete
        if is_supervisor {
            tracing::info!(
                task_id = %task_id,
                exit_code = exit_code,
                "Supervisor Claude process exited - NOT marking as complete"
            );
            // Update local state to reflect it's paused/waiting for input
            {
                let mut tasks = self.tasks.write().await;
                if let Some(task) = tasks.get_mut(&task_id) {
                    task.state = TaskState::Running; // Keep it as running, not completed
                    task.completed_at = None;
                }
            }
            // Send a status message to let the frontend know supervisor is ready for more input
            let msg = DaemonMessage::task_output(
                task_id,
                "\n[Supervisor ready for next instruction]\n".to_string(),
                false,
            );
            let _ = self.ws_tx.send(msg).await;
        } else {
            let error = if success {
                None
            } else {
                Some(format!("Exit code: {}", exit_code))
            };
            tracing::info!(task_id = %task_id, success = success, "Notifying server of task completion");
            let msg = DaemonMessage::task_complete(task_id, success, error);
            let _ = self.ws_tx.send(msg).await;
        }

        // Note: Worktrees are kept until explicitly deleted (per user preference)
        // This allows inspection, PR creation, etc.

        tracing::info!(task_id = %task_id, "=== RUN_TASK END ===");
        Ok(())
    }

    /// Execute the completion action for a task.
    async fn execute_completion_action(
        &self,
        task_id: Uuid,
        task_name: &str,
        worktree_path: &std::path::Path,
        action: &str,
        target_repo_path: Option<&str>,
        target_branch: Option<&str>,
    ) -> Result<Option<String>, String> {
        let target_repo = match target_repo_path {
            Some(path) => crate::daemon::worktree::expand_tilde(path),
            None => {
                tracing::warn!(task_id = %task_id, "No target_repo_path configured, skipping completion action");
                return Ok(None);
            }
        };

        if !target_repo.exists() {
            return Err(format!("Target repo not found: {} (expanded from {:?})", target_repo.display(), target_repo_path));
        }

        // Get the branch name: makima/{task-name-with-dashes}-{short-id}
        let branch_name = format!(
            "makima/{}-{}",
            crate::daemon::worktree::sanitize_name(task_name),
            crate::daemon::worktree::short_uuid(task_id)
        );

        // Determine target branch - use provided value or detect default branch of target repo
        let target_branch = match target_branch {
            Some(branch) => branch.to_string(),
            None => {
                // Detect default branch (main, master, develop, etc.)
                self.worktree_manager
                    .detect_default_branch(&target_repo)
                    .await
                    .unwrap_or_else(|_| "master".to_string())
            }
        };

        let msg = DaemonMessage::task_output(
            task_id,
            format!("Executing completion action: {}...\n", action),
            false,
        );
        let _ = self.ws_tx.send(msg).await;

        match action {
            "branch" => {
                // Just push the branch to target repo
                self.worktree_manager
                    .push_to_target_repo(worktree_path, &target_repo, &branch_name, task_name)
                    .await
                    .map_err(|e| e.to_string())?;

                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Branch '{}' pushed to {}\n", branch_name, target_repo.display()),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;
                Ok(None)
            }
            "merge" => {
                // Push and merge into target branch
                let commit_sha = self.worktree_manager
                    .merge_to_target(worktree_path, &target_repo, &branch_name, &target_branch, task_name)
                    .await
                    .map_err(|e| e.to_string())?;

                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Branch merged into {} (commit: {})\n", target_branch, commit_sha),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;
                Ok(None)
            }
            "pr" => {
                // Push and create PR
                let title = task_name.to_string();
                let body = format!(
                    "Automated PR from makima task.\n\nTask ID: `{}`",
                    task_id
                );
                let pr_url = self.worktree_manager
                    .create_pull_request(
                        worktree_path,
                        &target_repo,
                        &branch_name,
                        &target_branch,
                        &title,
                        &body,
                    )
                    .await
                    .map_err(|e| e.to_string())?;

                let msg = DaemonMessage::task_output(
                    task_id,
                    format!("Pull request created: {}\n", pr_url),
                    false,
                );
                let _ = self.ws_tx.send(msg).await;
                Ok(Some(pr_url))
            }
            _ => {
                tracing::warn!(task_id = %task_id, action = %action, "Unknown completion action");
                Ok(None)
            }
        }
    }

    /// Find worktree path for a task ID.
    /// First checks in-memory tasks, then scans the worktrees directory.
    async fn find_worktree_for_task(&self, task_id: Uuid) -> Result<PathBuf, String> {
        // First try to get from in-memory tasks
        {
            let tasks = self.tasks.read().await;
            if let Some(task) = tasks.get(&task_id) {
                if let Some(ref worktree) = task.worktree {
                    return Ok(worktree.path.clone());
                }
            }
        }

        // Task not in memory - scan worktrees directory for matching task ID
        let short_id = &task_id.to_string()[..8];
        let worktrees_dir = self.worktree_manager.base_dir();

        if let Ok(mut entries) = tokio::fs::read_dir(worktrees_dir).await {
            while let Ok(Some(entry)) = entries.next_entry().await {
                let name = entry.file_name();
                let name_str = name.to_string_lossy();
                if name_str.starts_with(short_id) {
                    let path = entry.path();
                    // Verify it's a valid git directory
                    if path.join(".git").exists() {
                        tracing::info!(
                            task_id = %task_id,
                            worktree_path = %path.display(),
                            "Found worktree by scanning directory"
                        );
                        return Ok(path);
                    }
                }
            }
        }

        Err(format!(
            "No worktree found for task {}. The worktree may have been cleaned up.",
            task_id
        ))
    }

    async fn update_state(&self, task_id: Uuid, state: TaskState) {
        let mut tasks = self.tasks.write().await;
        if let Some(task) = tasks.get_mut(&task_id) {
            task.state = state;
        }
    }

    async fn send_status_change(&self, task_id: Uuid, old_status: &str, new_status: &str) {
        let msg = DaemonMessage::task_status_change(task_id, old_status, new_status);
        let _ = self.ws_tx.send(msg).await;
    }

    /// Mark task as failed.
    async fn mark_failed(&self, task_id: Uuid, error: &str) {
        {
            let mut tasks = self.tasks.write().await;
            if let Some(task) = tasks.get_mut(&task_id) {
                task.state = TaskState::Failed;
                task.error = Some(error.to_string());
                task.completed_at = Some(Instant::now());
            }
        }

        // Notify server
        let msg = DaemonMessage::task_complete(task_id, false, Some(error.to_string()));
        let _ = self.ws_tx.send(msg).await;
    }
}

impl Clone for TaskManagerInner {
    fn clone(&self) -> Self {
        Self {
            worktree_manager: self.worktree_manager.clone(),
            process_manager: self.process_manager.clone(),
            temp_manager: self.temp_manager.clone(),
            tasks: self.tasks.clone(),
            ws_tx: self.ws_tx.clone(),
            task_inputs: self.task_inputs.clone(),
        }
    }
}