Contract system

1 files changed, 75 insertions, 0 deletions

diff --git a/makima/src/daemon/error.rs b/makima/src/daemon/error.rs
new file mode 100644
index 0000000..b993169
--- /dev/null
+++ b/makima/src/daemon/error.rs
@@ -0,0 +1,75 @@
+//! Error types for the makima daemon.
+
+use thiserror::Error;
+use uuid::Uuid;
+
+/// Top-level daemon error type.
+#[derive(Error, Debug)]
+pub enum DaemonError {
+    #[error("WebSocket error: {0}")]
+    WebSocket(#[from] tokio_tungstenite::tungstenite::Error),
+
+    #[error("Worktree error: {0}")]
+    Worktree(#[from] crate::daemon::worktree::WorktreeError),
+
+    #[error("Process error: {0}")]
+    Process(#[from] crate::daemon::process::ClaudeProcessError),
+
+    #[error("Task error: {0}")]
+    Task(#[from] TaskError),
+
+    #[error("Configuration error: {0}")]
+    Config(#[from] config::ConfigError),
+
+    #[error("Database error: {0}")]
+    Database(#[from] rusqlite::Error),
+
+    #[error("IO error: {0}")]
+    Io(#[from] std::io::Error),
+
+    #[error("JSON error: {0}")]
+    Json(#[from] serde_json::Error),
+
+    #[error("Authentication failed: {0}")]
+    AuthFailed(String),
+
+    #[error("Connection lost")]
+    ConnectionLost,
+
+    #[error("Server error: {code} - {message}")]
+    ServerError { code: String, message: String },
+}
+
+/// Task management errors.
+#[derive(Error, Debug)]
+pub enum TaskError {
+    #[error("Task not found: {0}")]
+    NotFound(Uuid),
+
+    #[error("Invalid state transition from {from} to {to}")]
+    InvalidStateTransition { from: String, to: String },
+
+    #[error("Concurrency limit reached")]
+    ConcurrencyLimit,
+
+    #[error("Task already exists: {0}")]
+    AlreadyExists(Uuid),
+
+    #[error("Task not running: {0}")]
+    NotRunning(Uuid),
+
+    #[error("Failed to send message to task: {0}")]
+    MessageFailed(String),
+
+    #[error("Task setup failed: {0}")]
+    SetupFailed(String),
+
+    #[error("Task execution failed: {0}")]
+    ExecutionFailed(String),
+}
+
+/// Result type alias for daemon operations.
+pub type Result<T> = std::result::Result<T, DaemonError>;
+
+/// Result type alias for task operations.
+pub type TaskResult<T> = std::result::Result<T, TaskError>;