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thoughtsync/desktop/src-tauri/src/local/mod.rs
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bvandeusenandClaude Opus 5 e64d67e904
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Expire trash after 30 days, and make the deadline something you can see
Trash had no end. A note sat in /trash until someone emptied it by hand, and
its attachment BYTES sat on disk the whole time — the pile-up the operator
asked about. Nothing purged; there was no scheduler at all.

Retention is server-owned: `trash_retention_days` (default 30, 0 = keep
forever) in the settings registry, so it lands in admin Settings with no
migration and takes effect without a restart. A background sweep started in
before_serving does the work. Clients learn about a purge the way they learn
about any deletion — as a tombstone on the delta feed.

An auto-purge nobody can see coming is data loss on a timer, so the window is
now visible: /api/config publishes it, notes carry `deleted_at`, Trash leads
with the policy, and each card counts down. The countdown rounds DOWN — saying
"1 day left" for a note with ten minutes on the clock is the one error here
that actually costs someone a note.

Three things this turned up on the way:

- `DELETE /api/notes/<id>` hard-deleted the row, leaving no tombstone at all.
  A permanent delete in the web UI never reached a linked device, which would
  keep its copy forever and push it back on the next edit. It now purges
  through the same path as everything else.
- The purge left `note_revisions` and `note_link_previews` behind. A revision
  holds the full body, so the text of a "permanently deleted" note was still
  sitting in the database.
- `deleted_at` now SURVIVES a purge instead of being cleared. It's still true,
  and it means every query that says "not trashed" excludes tombstones for
  free — without it a content-less row reads as a perfectly normal active note
  and shows up on the board as a blank card.

Desktop keeps its own clock only when there's nobody else to keep one: the
sweep runs at startup on an UNLINKED device and refuses otherwise. A linked
client that expired notes on its own schedule could destroy something the
server was deliberately keeping, then push that delete upstream. Local policy
must never outrank the server's — so it also adopts the server's window for
the countdown rather than showing its offline default.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SreJkbxB4gx8pPsu8QbLPi
2026-07-26 16:20:13 -04:00

45 lines
1.4 KiB
Rust

//! The local-first core: an on-device SQLite store + Tauri commands implementing the
//! frontend's repository seam, so the desktop app is fully usable with no server and
//! no login. adapters/local.ts (M10.5) calls into `commands`.
pub mod commands;
pub mod derive;
pub mod models;
pub mod retention;
pub mod schema;
pub mod store;
use std::path::Path;
use std::sync::Mutex;
use rusqlite::Connection;
/// The shared database handle, held in Tauri's managed state. rusqlite connections
/// aren't `Sync`, so a `Mutex` serializes access (fine — operations are quick and the
/// UI is single-user).
pub struct Db(pub Mutex<Connection>);
/// Open (creating if needed) the database at `path` and bring it to the latest schema.
pub fn open(path: &Path) -> rusqlite::Result<Db> {
let conn = Connection::open(path)?;
schema::migrate(&conn)?;
Ok(Db(Mutex::new(conn)))
}
/// A one-line count summary of the store, for the startup log.
pub fn summary(db: &Db) -> String {
let conn = match db.0.lock() {
Ok(c) => c,
Err(_) => return "counts unavailable (lock poisoned)".to_string(),
};
let count = |sql: &str| {
conn.query_row(sql, [], |r| r.get::<_, i64>(0))
.unwrap_or(-1)
};
format!(
"{} notes, {} labels",
count("SELECT COUNT(*) FROM notes"),
count("SELECT COUNT(*) FROM labels"),
)
}