ipodderx-rs/PROGRESS.md

# Progress

Running record of what has actually landed. Newest entry first.
The full design and step list live in the plan file at
`/config/.claude/plans/i-want-to-create-playful-quiche.md`.

## Build order

- [x] **1. Repo skeleton** — git init (`main`), `cargo init --name ipx`, deps pinned, LICENSE,
      README, this file.
- [x] **2. `config.rs` + `db.rs`** — TOML config structs + SQLite schema.
- [x] **3. `feed.rs`** — conditional GET, RSS-then-Atom parse, persist entries.
- [x] **4. `download.rs`** — downloads, filters, dedupe.
- [x] **5. `retention.rs`** — oldest-first quota + age reaper.
- [x] **6. `ipc.rs` + daemon** — UDS JSON-lines server, TTL scheduler, CLI-proxies-to-daemon.
- [ ] **7. `torrent.rs`** — librqbit, seed to ratio/time, stall abort. *Done when:* smoke 5 passes.
- [ ] **8. OPML + polish** — import/export, add/rm/status, tracing setup, systemd unit, README.

## Smoke tests

1. `ipx add <feed>` + `ipx fetch` → file in `download_dir/<Show>/`, row in `enclosures`.
2. `ipx fetch` again → no re-download, feed skipped for TTL.
3. `ipx daemon &` + `nc -U $XDG_RUNTIME_DIR/ipx.sock`, send `{"cmd":"fetch"}` → JSON events;
   a concurrent `ipx fetch` proxies to the daemon instead of downloading in parallel.
4. Delete a downloaded file by hand, `ipx fetch` → NOT re-downloaded.
5. Torrent enclosure → downloads, moves, stops seeding at the configured ratio/time.
6. `ipx reap --dry-run` under quota pressure → oldest-first hit list; real run flips rows to
   `reaped`.

---

## 2026-09-09 — Step 6: ipc.rs + daemon

`src/ipc.rs`: `Event` and `Command` as serde-tagged enums (`{"ev":...}` / `{"cmd":...}`), one JSON
object per line over a Unix socket. `Emitter` is the single output path — it broadcasts to socket
clients, prints the human rendering to a terminal, or both, so the scan code no longer knows how it
is being watched. That replaces `printMSG` and its `;;1;;1;;100.00;;42.31` sentinels.

`main.rs` restructured around a `Ctx` (config, db, client, emitter). `ipx daemon` binds the socket,
serves clients, and runs a 60s ticker that defers to each feed's TTL. Commands from every client
funnel through one mpsc queue into a single worker, which is what stops two scans overlapping.
Any CLI subcommand with a wire form probes the socket first and proxies to a running daemon;
`--local` forces the work to happen in-process. SIGINT/SIGTERM remove the socket on the way out.

**Bug the smoke test caught:** `fetch` runs a retention sweep first, and that sweep was emitting the
terminal `ReapDone`. A UI waiting for its fetch to finish would have stopped reading before the scan
started. Only a standalone `ipx reap` emits it now.

Verified: `cargo test` 24/24. Smoke 3 in full — daemon starts and binds; a raw socket client sending
`{"cmd":"fetch","force":true}` gets `feed_start` → 14 throttled `progress` events → `download_done`
→ `feed_done` → `scan_done`; `{"cmd":"status"}` answers `{"ev":"status","feeds":1,...}`. With the
daemon up, `ipx fetch` from the CLI logged `command from a client cmd=Fetch { .. }` in the daemon
and rendered the streamed events, so it proxied rather than downloading in parallel. Socket removed
on SIGTERM; with no daemon the same command runs locally.

Deferred: `{"cmd":"cancel","enclosure":N}` from the plan's protocol is **not implemented** —
downloads run sequentially in one worker, so there is nothing to cancel concurrently yet. It wants
a per-download cancellation token, which is worth doing when downloads go parallel. Say if you want
it sooner.

Note: the event stream is a broadcast, so a CLI client seeing a busy daemon also sees that other
work. Fine for a terminal; a UI wanting strict request/response would want per-request ids.

Also note: the daemon reads config once at startup — changing `config.toml` needs a restart.

Next: step 7 — `torrent.rs`.

---

## 2026-09-09 — Step 5: retention.rs

`src/retention.rs`: reconcile pass (rows claiming a file that is gone become `reaped`, fixing the
step-4 wart), age sweep, quota sweep keeping the original's 50 MB headroom pad, and entry pruning.
`ipx reap [--dry-run]`; a sweep also runs before every `fetch`, as the Python did per download.
`pick()` and `aged()` are pure so the ordering rules are testable without touching a disk.

**Judgement call worth Ray's eye.** The Python meant to reap only `read = 1 AND flagged = 0` but
never managed it — a missing `plistlib` import and an `EntreiesData` typo made that filter throw on
every candidate, so with a `.ipxd` present nothing was ever deleted. Requiring `read = 1` here would
be equally dead, because nothing marks episodes read until a UI exists. So: **`flagged` is the
keep-forever marker, and `read` only decides what goes first** (`ORDER BY read DESC, downloaded_at
ASC`). Quota therefore actually reclaims space headless. Say the word if you would rather unread
episodes were never touched.

Second call: `max_age_days` deletes *files* older than the cutoff, not just fileless entries as the
plan's wording had it — "keep 30 days of episodes" is what the setting reads like on a NAS.

Verified: `cargo test` 21/21, including the two tests encoding the exact bug the Python had —
flagged files are never offered, and read sort ahead of unread. Smoke 6 with three 30 MB episodes
against a 0.1 GB quota (52.4 MB ceiling after the pad): dry run listed ep1+ep2 and deleted nothing
(3 files still on disk), the real run deleted exactly those two oldest, left ep3, flipped both rows
to `reaped` with `path = NULL`. A full re-parse with the conditional-GET headers cleared then
re-downloaded nothing.

Next: step 6 — `ipc.rs` + daemon.

---

## 2026-09-09 — Step 4: download.rs

`src/download.rs`: streaming download to `<download_dir>/.ipx-incomplete/` (same filesystem as the
destination, so filing it is a rename, not the original's copy-then-unlink), content sniffing,
then `place()`. Filename comes from the URL's last path segment, percent-decoded, unless
`Content-Disposition` names one (RFC 5987 `filename*=` preferred). The sanitizer keeps UTF-8 —
`latin1_to_ascii` existed because 2004 filesystems demanded ASCII — strips the same characters
`stringCleaning()` did plus control chars, and adds a real 255-byte cap the Python never had,
preserving the extension across truncation.

Sniffing replaces `detectFileType()`, which called a `typeFile` module that was already missing in
2008 and so always answered `'data'`. Two rules survive: an HTML body is a failed download (login
wall/error page), and a torrent body is a torrent whatever the MIME claimed.

Filters run once at discovery and are recorded in `enclosures.state`; the download queue is then
just "everything still `pending`", so an enclosure held back by `max_new_per_check` is picked up by
the next scan instead of being lost. Keywords are OR'd across keywords and AND'd within one — the
original's nested loop let a later keyword silently undo an earlier miss.

Verified: `cargo test` 16/16. Smoke against a local server, five enclosures, each filter path hit:
`ep1.mp3 -> done`, `ep2.mp3 -> skipped (explicit)`, `ep2.mp3?v=3 -> skipped (no keyword match)`,
`paywall.html -> error (HTML page, not media)`, `ep5.torrent -> torrent (deferred to step 7)`.
Smoke 2 and 4 pass, and because a plain rerun 304s before parsing, dedupe was proved separately by
clearing the stored etag/last-modified and re-parsing all five entries: 0 downloaded, hand-deleted
file not refetched, `.ipx-incomplete` left empty.

Known wart: `ipx list` counts `path IS NOT NULL`, so a hand-deleted file still reads as downloaded.
Reconciling rows against the filesystem belongs in step 5.
Next: step 5 — `retention.rs`.

---

## 2026-09-09 — Step 3: feed.rs

`src/feed.rs`: conditional GET (`If-None-Match` + `If-Modified-Since`, optional basic auth) and a
RSS-first / Atom-fallback parser normalising both into `ParsedFeed`/`Entry`/`Enclosure`. Feed-level
`itunes:explicit` overrides the entry level, as the original did. `<ttl>` is captured. RSS
`content:encoded` wins over `description`. Atom enclosures come only from `rel="enclosure"` links.

GUID: the original hashed the title or description when no guid existed; here the chain is
guid → permalink → enclosure URL → title, all stable identifiers, so no hashing and no MD5
dependency. An entry with none of them has nothing to download and is dropped.

`db.rs` gained `http_state`, `record_feed`, `touch_feed`, `set_feed_error`, `record_entry`,
`record_enclosure`. A changed title/description flips `read` back to 0 — what the original's
textDiff was ultimately for, minus the `<ins>`/`<del>` markup, which belongs in the UI.

`main.rs` gained `ipx fetch [FEED] [--force]`. A failing feed records its error and the scan
continues.

Verified: `cargo test` 10/10. Gate met against a local `python3 -m http.server` serving the
fixtures — first run inserted 4 entries + 4 enclosures across an RSS and an Atom feed; second run
showed both skip paths, `atomcast: not modified` (304) and `testcast: not due for 45m` (the feed's
own ttl=45 beating `interval_mins = 0`).

Deferred: nothing downloads yet — enclosure rows land in state `pending`. That is step 4.
Next: step 4 — `download.rs`.

---

## 2026-09-09 — Step 2: config.rs + db.rs

`src/config.rs`: serde structs for `[general]`, `[torrent]` and `[feeds.<id>]` with defaults, `~`
expansion, `IPX_CONFIG` / `IPX_DATA_DIR` overrides, `save()` at mode 0600, `Feed::password()`
(`password_env` beats a literal `password`), `Torrent::ports()` parsing `"6881-6889"`. A missing
config file loads as an empty one so a fresh install works. Retention defaults are 0/0
(unlimited, keep forever) — nothing gets deleted until Ray asks for it.

`src/db.rs`: schema exactly as planned, WAL + `busy_timeout`, `Db::open()` idempotent, connection
behind a `Mutex`, `feed_summary()` for `list`, `now()` helper. `enclosures.url` is UNIQUE — the
dedupe key that replaces `history.dat`.

`src/main.rs`: clap skeleton with `ipx list`. Only the subcommands that work exist; the rest arrive
with their steps.

Verified: `cargo test` 5/5 green (config defaults, port-range fallback incl. reversed range,
password_env precedence, schema idempotency, enclosure-url uniqueness). Gate met — `ipx --config
<scratch> list` printed both feeds and created `state.db` once across two runs.

Deferred: nothing. Two dead-code warnings (`Config::save`, `Feed::password`) are expected; steps 3
and 8 consume them.
Next: step 3 — `feed.rs`.

Also added `chrono` 0.4 (std, clock) for RFC-2822 pubDate parsing in step 3.

---

## 2026-09-09 — Step 1: repo skeleton

Repo created at `/src/ipodderx-rs`, default branch `main`, `cargo init --name ipx` (edition 2024,
rustc 1.95.0). LICENSE (MIT, carrying the 2010 copyright), README with the lineage note, and this
file. Hello-world `main.rs` builds.

Dependency versions pinned today — the later steps are written against these APIs:

| crate | version | notes |
|---|---|---|
| tokio | 1.53.1 | rt-multi-thread, macros, fs, io-util, net, sync, time, signal |
| reqwest | 0.13.5 | `default-features = false`; features **`rustls`** (not `rustls-tls` — renamed in 0.13), http2, gzip, stream, json, charset, **`system-proxy`** (env-var proxy pickup is opt-in in 0.13) |
| rss | 2.1.1 | default features; the `with-syndication` feature name in my notes does not exist — Atom is handled by the separate crate |
| atom_syndication | 0.12.10 | |
| rusqlite | 0.40.2 | `bundled` |
| librqbit | 9.0.1 | `default-features = false`; features `rust-tls`, `http-api-client`. The default `default-tls` feature pulls reqwest/native-tls **and** an OpenSSL sha1 backend (`crypto-hash`), which fails to build without pkg-config/OpenSSL headers. API not yet exercised — step 7 |
| serde 1.0.229 / serde_json 1.0.151 / toml 1.1.5 | | |
| clap | 4.6.6 | derive |
| infer 0.22.0 / dirs 7.0.0 / anyhow 1.0.104 / opml 1.1.6 | | |
| tracing 0.1.44 / tracing-subscriber 0.3.23 | | env-filter |

Deferred: nothing.

Gotcha worth keeping: three feature names in the plan were wrong against current crate versions —
`reqwest/rustls-tls` is now `rustls`, env-var proxy support moved behind `system-proxy`, and
`rss/with-syndication` does not exist. `librqbit`'s default features drag in OpenSSL; `rust-tls`
is the fix. Whole tree is rustls-only now, no C TLS dependency.
Next: step 2 — `config.rs` + `db.rs`. (done)