max / goingson

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1	//! Shared tool context: the database handle and the fixed desktop user.
2	//!
3	//! go-mcp is a peer writer against the same `goingson.db` the desktop app uses.
4	//! Every write flows through the normal repository layer, so the 33 SQL sync
5	//! triggers fire and a running GoingsOn picks the changes up. There is no back
6	//! door around the changelog.
7
8	use std::path::PathBuf;
9
10	use goingson_core::UserId;
11	use goingson_db_sqlite::{SqliteProjectRepository, SqliteTaskRepository};
12	use sqlx::SqlitePool;
13	use uuid::Uuid;
14
15	/// Fixed single-user desktop id. Must match `DESKTOP_USER_ID` in the GoingsOn
16	/// Tauri app (`src-tauri/src/state.rs`); tasks are keyed on it, so a mismatch
17	/// would write rows the app never shows.
18	pub const DESKTOP_USER_ID: UserId = UserId::from_uuid(Uuid::from_u128(1));
19
20	/// Everything a tool needs to reach the database. Cheap to clone (the pool is
21	/// an `Arc` internally); tools hold it behind an `Arc` anyway.
22	pub struct Ctx {
23	pub pool: SqlitePool,
24	pub user_id: UserId,
25	}
26
27	impl Ctx {
28	pub fn new(pool: SqlitePool) -> Self {
29	Self {
30	pool,
31	user_id: DESKTOP_USER_ID,
32	}
33	}
34
35	pub fn tasks(&self) -> SqliteTaskRepository {
36	SqliteTaskRepository::new(self.pool.clone())
37	}
38
39	pub fn projects(&self) -> SqliteProjectRepository {
40	SqliteProjectRepository::new(self.pool.clone())
41	}
42	}
43
44	/// Default location of `goingson.db`, matching Tauri's `app_data_dir` for the
45	/// `com.goingson.app` bundle. Resolves the same path the desktop app opens so
46	/// `go-mcp` with no `--db` flag targets the real database.
47	pub fn default_db_path() -> Option<PathBuf> {
48	let home = std::env::var_os("HOME")?;
49	let home = PathBuf::from(home);
50
51	#[cfg(target_os = "macos")]
52	let base = home.join("Library/Application Support");
53
54	#[cfg(not(target_os = "macos"))]
55	let base = std::env::var_os("XDG_DATA_HOME")
56	.map(PathBuf::from)
57	.unwrap_or_else(\|\| home.join(".local/share"));
58
59	Some(base.join("com.goingson.app").join("goingson.db"))
60	}
61