//! Makima CLI - unified CLI for server, daemon, and task management.

use std::io::{self, Read};
use std::path::Path;
use std::sync::Arc;

use makima::daemon::api::ApiClient;
use makima::daemon::cli::{
    Cli, CliConfig, Commands, ConfigCommand, DirectiveCommand,
};
use makima::daemon::config::{DaemonConfig, RepoEntry};
use makima::daemon::db::LocalDb;
use makima::daemon::error::DaemonError;
use makima::daemon::setup;
use makima::daemon::task::{TaskConfig, TaskManager};
use makima::daemon::ws::{DaemonCommand, WsClient};
use tokio::process::Command;
use tokio::sync::mpsc;
use tracing_subscriber::{fmt, prelude::*, EnvFilter};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    let cli = Cli::parse_args();

    match cli.command {
        Commands::Server(args) => run_server(args).await,
        Commands::Daemon(args) => run_daemon(args).await,
        Commands::Directive(cmd) => run_directive(cmd).await,
        Commands::Config(cmd) => run_config(cmd).await,
    }
}

/// Run the makima server.
async fn run_server(
    args: makima::daemon::cli::ServerArgs,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    // Initialize logging
    init_logging(&args.log_level, "text");

    eprintln!("=== Makima Server Starting ===");
    eprintln!("Port: {}", args.port);

    // Create app state. ML model paths are optional now — when none of
    // them are supplied (the slim Dockerfile case) Listen and Speak
    // websocket endpoints respond with "not configured" and everything
    // else works normally.
    let mut app_state = match (
        args.parakeet_model_dir.as_deref(),
        args.parakeet_eou_dir.as_deref(),
        args.sortformer_model_path.as_deref(),
        args.chatterbox_model_dir.as_deref(),
    ) {
        (Some(p), Some(eou), Some(sf), Some(cb)) => {
            eprintln!("ML models configured (lazy load on first use)");
            makima::server::state::AppState::new(p, eou, sf, cb)
        }
        (None, None, None, None) => {
            eprintln!("ML models NOT configured — Listen/Speak disabled");
            makima::server::state::AppState::new_slim()
        }
        _ => {
            eprintln!(
                "WARNING: only some ML model paths provided. Pass all four \
                 (parakeet/parakeet_eou/sortformer/chatterbox) to enable ML, \
                 or none to run in slim mode. Continuing in slim mode."
            );
            makima::server::state::AppState::new_slim()
        }
    };

    // Connect to database if URL provided
    if let Some(ref db_url) = args.database_url {
        eprintln!("Connecting to database...");
        let pool = makima::db::create_pool(db_url).await?;
        app_state = app_state.with_db_pool(pool);
        eprintln!("Database connected");
    }

    let state = Arc::new(app_state);
    let addr = format!("0.0.0.0:{}", args.port);

    eprintln!("Starting server on {}", addr);
    makima::server::run_server(state, &addr).await?;

    Ok(())
}

/// Run the makima daemon.
async fn run_daemon(
    args: makima::daemon::cli::DaemonArgs,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    eprintln!("=== Makima Daemon Starting ===");

    // Check dependencies unless skipped
    if !args.skip_setup_check {
        eprintln!("[0/5] Checking dependencies...");
        let dep_result = setup::check_dependencies().await;
        setup::print_dependency_summary(&dep_result);

        // Check for missing critical dependencies
        if !dep_result.claude.installed {
            let os = setup::OperatingSystem::detect();
            setup::print_claude_install_instructions(os);
            std::process::exit(1);
        }

        if !dep_result.git.installed {
            let os = setup::OperatingSystem::detect();
            setup::print_git_install_instructions(os);
            std::process::exit(1);
        }

        // Print git authentication warnings (non-fatal)
        setup::print_git_auth_warnings(&dep_result);
    }

    // Install Claude Code skills for makima commands
    eprintln!("[0.5/5] Installing Claude Code skills...");
    if let Err(e) = makima::daemon::skill_installer::install_skills().await {
        eprintln!("      WARNING: Failed to install skills: {}", e);
        // Non-fatal: continue even if skill installation fails
    }

    // Build a temporary CLI struct for config loading
    let cli = makima::daemon::cli::daemon::DaemonArgs {
        config: args.config,
        repos_dir: args.repos_dir,
        worktrees_dir: args.worktrees_dir,
        server_url: args.server_url,
        api_key: args.api_key,
        max_tasks: args.max_tasks,
        log_level: args.log_level,
        bubblewrap: args.bubblewrap,
        skip_setup_check: args.skip_setup_check,
    };

    // Load configuration with CLI overrides
    eprintln!("[1/5] Loading configuration...");
    let config = match DaemonConfig::load_with_daemon_args(&cli) {
        Ok(cfg) => {
            eprintln!("      Config loaded: server={}", cfg.server.url);
            cfg
        }
        Err(e) => {
            eprintln!("Failed to load configuration: {}", e);
            eprintln!();
            eprintln!("Use CLI flags:");
            eprintln!("  makima daemon --server-url ws://localhost:8080 --api-key your-api-key");
            eprintln!();
            eprintln!("Or set environment variables:");
            eprintln!("  MAKIMA_DAEMON_SERVER_URL=ws://localhost:8080");
            eprintln!("  MAKIMA_API_KEY=your-api-key");
            eprintln!();
            eprintln!("Or create a config file: makima-daemon.toml");
            std::process::exit(1);
        }
    };

    // Initialize logging
    init_logging(&config.logging.level, &config.logging.format);
    eprintln!("[2/5] Logging initialized");

    // Initialize local database
    eprintln!(
        "[3/5] Opening local database: {}",
        config.local_db.path.display()
    );
    let local_db = Arc::new(std::sync::Mutex::new(LocalDb::open(&config.local_db.path)?));
    eprintln!("      Database opened");

    // Initialize worktree directories
    eprintln!("[4/5] Setting up directories...");
    tokio::fs::create_dir_all(&config.worktree.base_dir).await?;
    tokio::fs::create_dir_all(&config.worktree.repos_dir).await?;
    tokio::fs::create_dir_all(&config.repos.home_dir).await?;
    eprintln!(
        "      Worktree base: {}",
        config.worktree.base_dir.display()
    );
    eprintln!("      Repos cache: {}", config.worktree.repos_dir.display());
    eprintln!("      Home dir: {}", config.repos.home_dir.display());

    // Auto-clone repositories if configured
    if !config.repos.auto_clone.is_empty() {
        eprintln!(
            "      Auto-cloning {} repositories...",
            config.repos.auto_clone.len()
        );
        for repo_entry in &config.repos.auto_clone {
            if let Err(e) = auto_clone_repo(repo_entry, &config.repos.home_dir).await {
                eprintln!("      WARNING: Failed to clone {}: {}", repo_entry.url(), e);
            }
        }
    }

    // Create channels for communication
    let (command_tx, mut command_rx) = mpsc::channel::<DaemonCommand>(64);

    // Get machine info
    let machine_id = get_machine_id();
    let hostname = get_hostname();
    eprintln!("      Machine ID: {}", machine_id);
    eprintln!("      Hostname: {}", hostname);

    // Create WebSocket client
    eprintln!("[5/5] Connecting to server: {}", config.server.url);
    let mut ws_client = WsClient::new(
        config.server.clone(),
        machine_id,
        hostname,
        config.process.max_concurrent_tasks as i32,
        command_tx,
    );

    // Get sender for task manager
    let ws_tx = ws_client.sender();

    // Create task configuration
    let bubblewrap_config = if config.process.bubblewrap.enabled {
        Some(config.process.bubblewrap.clone())
    } else {
        None
    };
    // Derive HTTP API URL from WebSocket server URL (wss://... -> https://...)
    let api_url = config
        .server
        .url
        .replace("wss://", "https://")
        .replace("ws://", "http://");
    let task_config = TaskConfig {
        max_concurrent_tasks: config.process.max_concurrent_tasks,
        max_tasks_per_contract: config.process.max_tasks_per_contract,
        worktree_base_dir: config.worktree.base_dir.clone(),
        env_vars: config.process.env_vars.clone(),
        claude_command: config.process.claude_command.clone(),
        claude_args: config.process.claude_args.clone(),
        claude_pre_args: config.process.claude_pre_args.clone(),
        enable_permissions: config.process.enable_permissions,
        disable_verbose: config.process.disable_verbose,
        bubblewrap: bubblewrap_config,
        api_url,
        api_key: config.server.api_key.clone(),
        heartbeat_commit_interval_secs: config.process.heartbeat_commit_interval_secs,
        checkpoint_patches: config.process.checkpoint_patches.clone(),
    };

    // Create task manager with local database for crash recovery
    let task_manager = Arc::new(TaskManager::new(task_config, ws_tx.clone(), local_db));

    // Recover any orphaned tasks from previous daemon run
    let recovered = task_manager.recover_orphaned_tasks().await;
    if !recovered.is_empty() {
        eprintln!("      Recovered {} orphaned tasks with intact worktrees", recovered.len());
    }

    // Spawn command handler
    let task_manager_clone = task_manager.clone();
    tokio::spawn(async move {
        tracing::info!("Command handler started, waiting for commands...");
        while let Some(command) = command_rx.recv().await {
            tracing::info!("Received command from channel: {:?}", command);
            if let Err(e) = task_manager_clone.handle_command(command).await {
                tracing::error!("Failed to handle command: {}", e);
            }
        }
        tracing::info!("Command handler stopped");
    });

    // Spawn periodic worktree health check (every 60 seconds)
    let health_check_manager = task_manager.clone();
    tokio::spawn(async move {
        let mut interval = tokio::time::interval(std::time::Duration::from_secs(60));
        loop {
            interval.tick().await;
            let affected = health_check_manager.check_worktree_health().await;
            if !affected.is_empty() {
                tracing::info!(
                    count = affected.len(),
                    "Worktree health check detected missing worktrees - tasks marked for retry"
                );
            }
        }
    });

    // Handle shutdown signals
    let shutdown_signal = async {
        tokio::signal::ctrl_c()
            .await
            .expect("Failed to install Ctrl+C handler");
        eprintln!("\nReceived shutdown signal");
    };

    eprintln!("=== Daemon running (Ctrl+C to stop) ===");

    // Run WebSocket client with shutdown handling
    tokio::select! {
        result = ws_client.run() => {
            match result {
                Ok(()) => eprintln!("WebSocket client exited cleanly"),
                Err(DaemonError::AuthFailed(msg)) => {
                    eprintln!("ERROR: Authentication failed: {}", msg);
                    std::process::exit(1);
                }
                Err(e) => {
                    eprintln!("ERROR: WebSocket client error: {}", e);
                    std::process::exit(1);
                }
            }
        }
        _ = shutdown_signal => {
            eprintln!("Shutting down...");
        }
    }

    // Gracefully shutdown all running Claude processes
    eprintln!("Terminating Claude processes...");
    task_manager
        .shutdown_all_processes(std::time::Duration::from_secs(5))
        .await;

    // Cleanup
    tracing::info!("Daemon stopped");

    Ok(())
}


/// Run directive commands.
async fn run_directive(
    cmd: DirectiveCommand,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    use makima::daemon::api::directive::*;

    match cmd {
        DirectiveCommand::List(args) => {
            let client = ApiClient::new(args.api_url, args.api_key)?;
            let result = client.list_directives().await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Get(args) | DirectiveCommand::Status(args) => {
            let client = ApiClient::new(args.api_url, args.api_key)?;
            let result = client.get_directive(args.directive_id).await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::AddStep(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let depends_on: Vec<uuid::Uuid> = args
                .depends_on
                .map(|d| {
                    d.split(',')
                        .filter_map(|s| uuid::Uuid::parse_str(s.trim()).ok())
                        .collect()
                })
                .unwrap_or_default();
            let req = CreateStepRequest {
                name: args.name,
                description: args.description,
                task_plan: args.task_plan,
                depends_on,
                order_index: args.order_index,
            };
            let result = client.directive_add_step(args.common.directive_id, req).await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::RemoveStep(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            client.directive_remove_step(args.common.directive_id, args.step_id).await?;
            println!(r#"{{"success": true}}"#);
        }
        DirectiveCommand::SetDeps(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let depends_on: Vec<uuid::Uuid> = args
                .depends_on
                .split(',')
                .filter_map(|s| uuid::Uuid::parse_str(s.trim()).ok())
                .collect();
            let result = client
                .directive_set_deps(args.common.directive_id, args.step_id, depends_on)
                .await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Start(args) => {
            let client = ApiClient::new(args.api_url, args.api_key)?;
            let result = client.directive_start(args.directive_id).await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Pause(args) => {
            let client = ApiClient::new(args.api_url, args.api_key)?;
            let result = client.directive_pause(args.directive_id).await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Advance(args) => {
            let client = ApiClient::new(args.api_url, args.api_key)?;
            let result = client.directive_advance(args.directive_id).await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::CompleteStep(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let result = client
                .directive_complete_step(args.common.directive_id, args.step_id)
                .await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::FailStep(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let result = client
                .directive_fail_step(args.common.directive_id, args.step_id)
                .await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::SkipStep(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let result = client
                .directive_skip_step(args.common.directive_id, args.step_id)
                .await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::BatchAddSteps(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let steps: serde_json::Value = serde_json::from_str(&args.json)
                .map_err(|e| format!("Invalid JSON: {}", e))?;
            let result = client
                .directive_batch_add_steps(args.common.directive_id, steps)
                .await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Update(args) => {
            let client = ApiClient::new(args.common.api_url, args.common.api_key)?;
            let result = client
                .directive_update(args.common.directive_id, args.pr_url, args.pr_branch, args.status)
                .await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Ask(args) => {
            let client = ApiClient::new(args.common.api_url.clone(), args.common.api_key.clone())?;
            eprintln!("Asking user: {}...", args.question);
            let choices = args
                .choices
                .map(|c| c.split(',').map(|s| s.trim().to_string()).collect())
                .unwrap_or_default();
            let result = client
                .supervisor_ask(&args.question, choices, args.context, args.timeout, args.phaseguard, args.multi_select, args.non_blocking, args.question_type)
                .await?;
            let mut response_value = result.0;

            // If the server returned still_pending, poll until we get a real response
            while response_value.get("stillPending").and_then(|v| v.as_bool()).unwrap_or(false) {
                // Extract question_id for polling
                let question_id_str = response_value.get("questionId")
                    .and_then(|v| v.as_str())
                    .ok_or_else(|| {
                        Box::<dyn std::error::Error + Send + Sync>::from(
                            "Missing questionId in still_pending response"
                        )
                    })?;
                let question_id: uuid::Uuid = question_id_str.parse().map_err(|e| {
                    Box::<dyn std::error::Error + Send + Sync>::from(
                        format!("Invalid questionId: {}", e)
                    )
                })?;

                eprintln!("Waiting for user response (polling)...");
                let poll_result = client.supervisor_poll_question(question_id).await?;
                response_value = poll_result.0;
            }

            println!("{}", serde_json::to_string(&response_value)?);
        }
        DirectiveCommand::CreateOrder(args) => {
            // Validate order_type is spike or chore
            if args.order_type != "spike" && args.order_type != "chore" {
                eprintln!("Error: Only 'spike' and 'chore' order types are allowed. Got: '{}'", args.order_type);
                std::process::exit(1);
            }
            let client = ApiClient::new(args.common.api_url.clone(), args.common.api_key.clone())?;
            eprintln!("Creating order: {}...", args.title);
            let labels = args
                .labels
                .map(|l| {
                    serde_json::Value::Array(
                        l.split(',')
                            .map(|s| serde_json::Value::String(s.trim().to_string()))
                            .collect(),
                    )
                })
                .unwrap_or_else(|| serde_json::json!([]));
            let req = makima::daemon::api::supervisor::CreateOrderRequest {
                title: args.title,
                description: args.description,
                priority: args.priority,
                order_type: args.order_type,
                labels,
                repository_url: None,
            };
            let result = client.create_order(&req).await?;
            println!("{}", serde_json::to_string(&result.0)?);
        }
        DirectiveCommand::Verify(args) => {
            run_directive_verify(args).await?;
        }
    }

    Ok(())
}

/// Run `makima directive verify` — checks that the current HEAD merges cleanly
/// into `<remote>/<base>`. Prints a JSON result and exits non-zero on conflict.
///
/// Implementation uses `git merge-tree --write-tree` (Git ≥ 2.38), which performs
/// the merge in-memory and lists conflicting paths without touching the working
/// tree or creating any commits.
async fn run_directive_verify(
    args: makima::daemon::cli::directive::VerifyArgs,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    use std::process::Command;

    fn git(args: &[&str]) -> std::io::Result<std::process::Output> {
        Command::new("git").args(args).output()
    }

    let head_ref = args.head.as_deref().unwrap_or("HEAD").to_string();
    let base_ref = format!("{}/{}", args.remote, args.base);

    if !args.skip_fetch {
        eprintln!("Fetching {} {}...", args.remote, args.base);
        let fetch = git(&["fetch", &args.remote, &args.base])?;
        if !fetch.status.success() {
            return Err(format!(
                "git fetch {} {} failed: {}",
                args.remote,
                args.base,
                String::from_utf8_lossy(&fetch.stderr)
            )
            .into());
        }
    }

    let head_rev = {
        let out = git(&["rev-parse", &head_ref])?;
        if !out.status.success() {
            return Err(format!(
                "git rev-parse {} failed: {}",
                head_ref,
                String::from_utf8_lossy(&out.stderr)
            )
            .into());
        }
        String::from_utf8_lossy(&out.stdout).trim().to_string()
    };
    let base_rev = {
        let out = git(&["rev-parse", &base_ref])?;
        if !out.status.success() {
            return Err(format!(
                "git rev-parse {} failed (did you fetch?): {}",
                base_ref,
                String::from_utf8_lossy(&out.stderr)
            )
            .into());
        }
        String::from_utf8_lossy(&out.stdout).trim().to_string()
    };

    eprintln!("Verifying merge: {} ({}) <- {} ({})", base_ref, &base_rev[..7.min(base_rev.len())], head_ref, &head_rev[..7.min(head_rev.len())]);

    let merge = Command::new("git")
        .args(["merge-tree", "--write-tree", "--name-only", "--no-messages", &base_rev, &head_rev])
        .output()?;

    let stdout = String::from_utf8_lossy(&merge.stdout).to_string();
    let stderr = String::from_utf8_lossy(&merge.stderr).to_string();
    let success = merge.status.success();

    let conflicting_files: Vec<String> = if success {
        Vec::new()
    } else {
        stdout
            .lines()
            .skip(1)
            .filter(|l| !l.is_empty())
            .map(|l| l.to_string())
            .collect()
    };

    let result = serde_json::json!({
        "ok": success,
        "base": base_ref,
        "head": head_ref,
        "baseSha": base_rev,
        "headSha": head_rev,
        "conflictingFiles": conflicting_files,
        "goal": args.goal,
    });
    println!("{}", serde_json::to_string(&result)?);

    if !success {
        eprintln!("\n[FAIL] Merge would conflict in {} file(s):", conflicting_files.len());
        for f in &conflicting_files {
            eprintln!("  - {}", f);
        }
        if !stderr.is_empty() {
            eprintln!("\ngit stderr:\n{}", stderr);
        }
        eprintln!(
            "\nFix the conflicts before pushing. Typical workflow:\n  \
             git fetch {remote} {base}\n  \
             git merge {remote}/{base}\n  \
             # resolve conflicts, commit, then re-run `makima directive verify`",
            remote = args.remote,
            base = args.base,
        );
        std::process::exit(1);
    }

    if let Some(goal) = &args.goal {
        eprintln!("\n[OK] No merge conflicts.");
        eprintln!("Reminder — directive goal:\n  {}\n", goal);
        eprintln!("Confirm the diff (`git diff {}...HEAD`) actually delivers this goal before creating the PR.", base_ref);
    } else {
        eprintln!("[OK] No merge conflicts with {}.", base_ref);
    }

    Ok(())
}

/// Run the TUI view command.

/// Run config commands.
async fn run_config(cmd: ConfigCommand) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    match cmd {
        ConfigCommand::SetKey(args) => {
            let mut config = CliConfig::load();
            config.api_key = Some(args.api_key);
            config.save()?;
            println!("API key saved to {:?}", CliConfig::config_path().unwrap_or_default());
            Ok(())
        }
        ConfigCommand::SetUrl(args) => {
            let mut config = CliConfig::load();
            config.api_url = args.api_url;
            config.save()?;
            println!("API URL saved to {:?}", CliConfig::config_path().unwrap_or_default());
            Ok(())
        }
        ConfigCommand::Show => {
            let config = CliConfig::load();
            println!("Configuration:");
            println!("  API URL: {}", config.api_url);
            println!("  API Key: {}", config.api_key.as_ref().map(|k| {
                if k.len() > 10 {
                    format!("{}...{}", &k[..6], &k[k.len()-4..])
                } else {
                    "***".to_string()
                }
            }).unwrap_or_else(|| "(not set)".to_string()));
            println!();
            println!("Config file: {:?}", CliConfig::config_path().unwrap_or_default());
            Ok(())
        }
        ConfigCommand::Path => {
            if let Some(path) = CliConfig::config_path() {
                println!("{}", path.display());
            } else {
                eprintln!("Could not determine config path");
            }
            Ok(())
        }
    }
}

/// Load contracts from API

fn init_logging(level: &str, format: &str) {
    let filter = EnvFilter::try_from_default_env()
        .or_else(|_| EnvFilter::try_new(level))
        .unwrap_or_else(|_| EnvFilter::new("info"));

    let subscriber = tracing_subscriber::registry().with(filter);

    if format == "json" {
        subscriber.with(fmt::layer().json()).init();
    } else {
        subscriber.with(fmt::layer()).init();
    }
}

fn get_machine_id() -> String {
    // Try to read machine-id from standard locations
    #[cfg(target_os = "linux")]
    {
        if let Ok(id) = std::fs::read_to_string("/etc/machine-id") {
            return id.trim().to_string();
        }
        if let Ok(id) = std::fs::read_to_string("/var/lib/dbus/machine-id") {
            return id.trim().to_string();
        }
    }

    #[cfg(target_os = "macos")]
    {
        // Use IOPlatformSerialNumber
        if let Ok(output) = std::process::Command::new("ioreg")
            .args(["-rd1", "-c", "IOPlatformExpertDevice"])
            .output()
        {
            let stdout = String::from_utf8_lossy(&output.stdout);
            for line in stdout.lines() {
                if line.contains("IOPlatformUUID") {
                    if let Some(uuid) = line.split('"').nth(3) {
                        return uuid.to_string();
                    }
                }
            }
        }
    }

    // Fallback: generate a random ID and persist it
    let state_dir = dirs_next::data_local_dir()
        .unwrap_or_else(|| std::path::PathBuf::from("."))
        .join("makima");
    let machine_id_file = state_dir.join("machine-id");

    if let Ok(id) = std::fs::read_to_string(&machine_id_file) {
        return id.trim().to_string();
    }

    // Generate new ID
    let new_id = uuid::Uuid::new_v4().to_string();
    std::fs::create_dir_all(&state_dir).ok();
    std::fs::write(&machine_id_file, &new_id).ok();
    new_id
}

fn get_hostname() -> String {
    hostname::get()
        .map(|h| h.to_string_lossy().to_string())
        .unwrap_or_else(|_| "unknown".to_string())
}

/// Auto-clone a repository to the home directory if it doesn't exist.
async fn auto_clone_repo(
    repo_entry: &RepoEntry,
    home_dir: &Path,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
    let dir_name = repo_entry
        .dir_name()
        .ok_or("Could not determine directory name from URL")?;
    let target_dir = home_dir.join(&dir_name);

    // Check if already cloned
    if target_dir.exists() {
        eprintln!("      [skip] {} (already exists)", dir_name);
        return Ok(());
    }

    let url = repo_entry.expanded_url();
    eprintln!("      [clone] {} -> {}", url, target_dir.display());

    // Build git clone command
    let mut args = vec!["clone".to_string()];

    // Add shallow clone if requested
    if repo_entry.shallow() {
        args.push("--depth".to_string());
        args.push("1".to_string());
    }

    // Add branch if specified
    if let Some(branch) = repo_entry.branch() {
        args.push("--branch".to_string());
        args.push(branch.to_string());
    }

    args.push(url.clone());
    args.push(target_dir.to_string_lossy().to_string());

    // Run git clone
    let output = Command::new("git").args(&args).output().await?;

    if !output.status.success() {
        let stderr = String::from_utf8_lossy(&output.stderr);
        return Err(format!("git clone failed: {}", stderr).into());
    }

    eprintln!("      [done] {}", dir_name);
    Ok(())
}

/// dirs_next minimal replacement
mod dirs_next {
    use std::path::PathBuf;

    pub fn data_local_dir() -> Option<PathBuf> {
        #[cfg(target_os = "macos")]
        {
            std::env::var("HOME")
                .ok()
                .map(|h| PathBuf::from(h).join("Library").join("Application Support"))
        }
        #[cfg(target_os = "linux")]
        {
            std::env::var("XDG_DATA_HOME")
                .ok()
                .map(PathBuf::from)
                .or_else(|| {
                    std::env::var("HOME")
                        .ok()
                        .map(|h| PathBuf::from(h).join(".local").join("share"))
                })
        }
        #[cfg(target_os = "windows")]
        {
            std::env::var("LOCALAPPDATA").ok().map(PathBuf::from)
        }
        #[cfg(not(any(target_os = "macos", target_os = "linux", target_os = "windows")))]
        {
            None
        }
    }
}