dtourolle
62873cab3d
Search's instant leg read only downloaded items, so with no downloads it returned nothing and every keystroke fell through to a full Recursive=true server query. It now reads the whole synced catalog through the same availability CTE get_items uses, gated on the same include_catalog_browse flag so search and browse cannot diverge. (UR-065, DR-108) Also fixes three defects found while confirming that: - items_fts grew by a full duplicate index every catalog pass. INSERT OR REPLACE fires no AFTER DELETE trigger without recursive_triggers, so the old index row was orphaned, and a TEXT PRIMARY KEY meant the replacement took a fresh rowid and inserted a second entry. Now a real upsert, with migration 021 rebuilding existing indexes. (DR-110) - DELETE FROM items existed nowhere, so server-side deletions never propagated. Adds a post-crawl mark-and-sweep, scoped to crawled types, skipping downloaded items, and refusing to run after a partial crawl because items.parent_id cascades. (DR-110) - The index omitted MusicArtist, Playlist and People, which search groups results by. Adds them plus people_fts (migration 022). (DR-111) Re-indexing moves from a frontend startup call to a Rust background task with a 6h TTL, so a long session no longer searches a stale catalog and a restart no longer forces a crawl regardless of freshness. (DR-109, IR-030) Downloads gain a lifetime tier. Eviction selected every completed row by age with no download_source filter, so hitting the storage limit deleted the oldest download -- typically one saved deliberately for offline -- to make room for a precached track. It now reclaims only 'auto' rows, and expired ones are reclaimed first, before live cache is evicted. (DR-126, DR-127) Downloaded video and audio-only handoffs now play from disk instead of streaming; the video path had never consulted downloads at all. No transcode is involved: MPV runs video=no and ExoPlayer has no surface for an Audio item. (DR-123 in part, DR-128) FTS queries are built as quoted phrases so apostrophes, hyphens and slashes are data rather than operator syntax, and the item-type filter is bound rather than interpolated. Specs: docs/specs/catalog-index-search.md, docs/specs/read-through-media-cache.md Includes concurrently-developed favourites browsing and background-audio stream-end handling; the two workstreams share offline.rs, lib.rs and online.rs, so no subset of files builds independently.
664 lines
23 KiB
Rust
664 lines
23 KiB
Rust
//! Smart caching engine for predictive downloads
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#[cfg(test)]
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use crate::utils::lock::MutexSafe;
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use log::{debug, info};
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use std::collections::HashMap;
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use std::sync::{Arc, Mutex};
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use serde::{Deserialize, Serialize};
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use crate::storage::db_service::{DatabaseService, Query, QueryParam};
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/// Smart caching configuration
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#[derive(specta::Type, Debug, Clone, Serialize, Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct CacheConfig {
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/// Enable queue pre-caching
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pub queue_precache_enabled: bool,
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/// Number of tracks to pre-cache from queue
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pub queue_precache_count: usize,
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/// Enable album affinity detection
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pub album_affinity_enabled: bool,
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/// Threshold for album affinity (tracks played before caching)
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pub album_affinity_threshold: usize,
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/// Storage limit in bytes (0 = unlimited)
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pub storage_limit: u64,
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/// Only cache on WiFi
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pub wifi_only: bool,
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/// How long a temporary (`download_source = 'auto'`) download lives before
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/// it is reclaimed, in hours. 0 disables expiry, leaving space pressure as
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/// the only reclaim trigger.
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///
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/// TRACES: UR-071 | DR-127
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pub temporary_ttl_hours: u64,
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}
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impl Default for CacheConfig {
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fn default() -> Self {
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Self {
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queue_precache_enabled: true,
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queue_precache_count: 3, // Preload next 3 tracks by default
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album_affinity_enabled: true,
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album_affinity_threshold: 3,
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storage_limit: 10 * 1024 * 1024 * 1024, // 10GB
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wifi_only: false, // Allow preloading on any connection by default
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// A week: long enough that re-watching over a weekend still hits
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// disk, short enough that a one-off play does not hold space
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// indefinitely.
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temporary_ttl_hours: 24 * 7,
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}
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}
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}
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/// Smart caching engine
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#[derive(Clone)]
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pub struct SmartCache {
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config: Arc<Mutex<CacheConfig>>,
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/// Track recently played items per album
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album_play_history: Arc<Mutex<HashMap<String, Vec<String>>>>,
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}
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impl SmartCache {
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pub fn new(config: CacheConfig) -> Self {
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Self {
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config: Arc::new(Mutex::new(config)),
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album_play_history: Arc::new(Mutex::new(HashMap::new())),
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}
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}
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/// Update configuration
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pub fn update_config(&self, config: CacheConfig) {
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if let Ok(mut cfg) = self.config.lock() {
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*cfg = config;
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}
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}
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/// Check if should pre-cache queue items.
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///
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/// Note this deliberately does NOT consult `wifi_only`. It used to return
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/// `queue_precache_enabled && !wifi_only`, which disabled precaching
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/// outright whenever the user enabled WiFi-only — regardless of the network
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/// actually in use. The network check now lives in the download queue pump
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/// (`downloads_allowed_on_current_network`), which is the single gate for
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/// all download traffic, so this only answers "is precaching enabled?".
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///
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/// TRACES: UR-053 | DR-074
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pub fn should_precache_queue(&self) -> bool {
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self.config
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.lock()
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.map(|cfg| cfg.queue_precache_enabled)
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.unwrap_or(false)
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}
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/// Get number of queue items to pre-cache
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pub fn queue_precache_count(&self) -> usize {
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self.config
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.lock()
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.map(|cfg| cfg.queue_precache_count)
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.unwrap_or(5)
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}
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/// Track that an item was played
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pub fn track_play(&self, item_id: &str, album_id: Option<&str>) {
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if let Some(album) = album_id {
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if let Ok(mut history) = self.album_play_history.lock() {
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let plays = history.entry(album.to_string()).or_insert_with(Vec::new);
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if !plays.contains(&item_id.to_string()) {
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plays.push(item_id.to_string());
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}
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}
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}
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}
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/// Check if album affinity threshold reached for caching
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pub fn should_cache_album(&self, album_id: &str) -> Option<bool> {
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let config = self.config.lock().ok()?;
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if !config.album_affinity_enabled {
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return Some(false);
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}
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let history = self.album_play_history.lock().ok()?;
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let play_count = history.get(album_id).map(|v| v.len()).unwrap_or(0);
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Some(play_count >= config.album_affinity_threshold)
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}
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/// Get configuration
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pub fn get_config(&self) -> Option<CacheConfig> {
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self.config.lock().ok().map(|cfg| cfg.clone())
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}
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/// Get all tracked albums with their play counts
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/// Returns Vec<(album_id, unique_tracks_played)>
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pub fn get_album_play_history(&self) -> Vec<(String, usize)> {
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self.album_play_history
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.lock()
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.ok()
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.map(|history| {
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history
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.iter()
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.map(|(album_id, tracks)| (album_id.clone(), tracks.len()))
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.collect()
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})
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.unwrap_or_default()
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}
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// ============= Async versions for DatabaseService =============
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/// Get total download size for a user (async version)
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pub async fn get_total_download_size_async<S: DatabaseService>(
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&self,
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db_service: &Arc<S>,
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user_id: &str,
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) -> Result<u64, String> {
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let query = Query::with_params(
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"SELECT COALESCE(SUM(file_size), 0) FROM downloads
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WHERE user_id = ? AND status = 'completed'",
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vec![QueryParam::String(user_id.to_string())],
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);
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let size: i64 = db_service
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.query_one(query, |row| row.get(0))
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.await
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.map_err(|e| e.to_string())?;
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Ok(size as u64)
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}
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/// Check if storage limit allows download (async version)
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pub async fn can_download_async<S: DatabaseService>(
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&self,
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db_service: &Arc<S>,
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user_id: &str,
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new_size: u64,
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) -> bool {
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// Clone config to avoid holding lock across await
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let storage_limit = {
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match self.config.lock() {
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Ok(cfg) => cfg.storage_limit,
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Err(_) => return true,
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}
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};
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if storage_limit == 0 {
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return true; // Unlimited
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}
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let current_size = self
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.get_total_download_size_async(db_service, user_id)
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.await
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.unwrap_or(0);
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current_size + new_size <= storage_limit
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}
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/// Reclaim temporary downloads whose life limit has passed.
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///
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/// The time-based half of the temporary tier (DR-127); [`evict_lru_async`]
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/// is the space-pressure half. A row is reclaimed by whichever fires first.
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///
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/// Scoped to `download_source = 'auto'` for the same reason eviction is: a
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/// `'user'` row is someone's own download and has no expiry. `COALESCE`
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/// guards rows predating migration 012, whose source is NULL and whose
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/// provenance must therefore be treated as the user's.
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///
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/// Expiry is normally *derived* — `completed_at` plus the configured TTL —
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/// rather than stamped at completion. That means a TTL change applies to
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/// entries already on disk instead of only to future ones, and entries
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/// predating the column expire without a backfill. `expires_at` is honoured
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/// as a per-row override when something sets it.
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///
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/// `now` is passed in rather than read from the clock so the policy is
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/// testable without sleeping. Both sides go through SQLite's `datetime()`
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/// because `completed_at` is written as `CURRENT_TIMESTAMP`
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/// (`YYYY-MM-DD HH:MM:SS`) while callers pass RFC-3339 (`…T…+00:00`) — a raw
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/// string comparison between the two formats is wrong, since `' ' < 'T'`.
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///
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/// Returns the number of entries reclaimed.
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///
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/// TRACES: UR-071 | DR-127 | UT-120
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pub async fn reclaim_expired_async<S: DatabaseService>(
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&self,
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db_service: &Arc<S>,
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user_id: &str,
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now: &str,
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) -> Result<usize, String> {
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let ttl_hours = {
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let config = self.config.lock().map_err(|e| e.to_string())?;
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config.temporary_ttl_hours
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};
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// 0 disables time-based reclaim; space pressure remains the only trigger.
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if ttl_hours == 0 {
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return Ok(0);
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}
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let expired: Vec<(i64, String)> = db_service
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.query_many(
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Query::with_params(
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"SELECT id, file_path FROM downloads
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WHERE user_id = ?
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AND COALESCE(download_source, 'user') = 'auto'
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AND status = 'completed'
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AND datetime(
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COALESCE(expires_at, datetime(completed_at, '+' || ? || ' hours'))
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) < datetime(?)",
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vec![
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QueryParam::String(user_id.to_string()),
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QueryParam::String(ttl_hours.to_string()),
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QueryParam::String(now.to_string()),
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],
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),
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|row| Ok((row.get(0)?, row.get(1)?)),
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)
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.await
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.map_err(|e| e.to_string())?;
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let mut reclaimed = 0usize;
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for (id, file_path) in expired {
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// Best-effort on the file: a missing one still needs its row gone,
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// or the sweep retries it forever.
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let _ = std::fs::remove_file(&file_path);
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db_service
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.execute(Query::with_params(
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"DELETE FROM downloads WHERE id = ?",
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vec![QueryParam::Int64(id)],
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))
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.await
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.map_err(|e| e.to_string())?;
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reclaimed += 1;
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}
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if reclaimed > 0 {
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info!("[SmartCache] Reclaimed {} expired entries", reclaimed);
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}
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Ok(reclaimed)
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}
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/// Evict least recently used items to make space (async version).
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///
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/// The space-pressure half of the temporary tier; [`reclaim_expired_async`]
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/// is the time-based half.
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pub async fn evict_lru_async<S: DatabaseService>(
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&self,
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db_service: &Arc<S>,
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user_id: &str,
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space_needed: u64,
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) -> Result<u64, String> {
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let current_size = self
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.get_total_download_size_async(db_service, user_id)
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.await?;
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// Get limit without holding lock across await
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let limit = {
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let config = self.config.lock().map_err(|e| e.to_string())?;
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config.storage_limit
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};
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if limit == 0 || current_size + space_needed <= limit {
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return Ok(0); // No eviction needed
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}
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let to_free = (current_size + space_needed) - limit;
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let mut freed: u64 = 0;
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// Only the *temporary* tier is evictable. `download_source = 'auto'` is
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// precache — the cache put it there, the cache may reclaim it. A 'user'
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// row is a download someone explicitly asked for; deleting it to make
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// room for a predictive fetch is data loss, and because the old query
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// ordered purely by `completed_at ASC` it took the oldest — typically
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// exactly the film saved for a flight.
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//
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// COALESCE, not `= 'auto'` alone: migration 012 added the column with a
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// 'user' default, but rows predating it can be NULL, and an unknown
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// provenance must be treated as the user's, never as disposable.
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//
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// Freeing less than requested is the correct outcome when only user
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// downloads remain — the caller surfaces "unable to free enough space"
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// rather than silently deleting them.
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//
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// TRACES: UR-071 | DR-126 | UT-108
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let query = Query::with_params(
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"SELECT id, file_size, file_path FROM downloads
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WHERE user_id = ? AND status = 'completed'
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AND COALESCE(download_source, 'user') = 'auto'
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ORDER BY completed_at ASC",
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vec![QueryParam::String(user_id.to_string())],
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);
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let downloads: Vec<(i64, i64, String)> = db_service
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.query_many(query, |row| Ok((row.get(0)?, row.get(1)?, row.get(2)?)))
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.await
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.map_err(|e| e.to_string())?;
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for (id, size, file_path) in downloads {
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if freed >= to_free {
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break;
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}
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// Delete file
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let _ = std::fs::remove_file(&file_path);
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debug!("[SmartCache] Evicted: {} ({} bytes)", file_path, size);
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// Delete from database
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let delete_query = Query::with_params(
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"DELETE FROM downloads WHERE id = ?",
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vec![QueryParam::Int64(id)],
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);
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db_service
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.execute(delete_query)
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.await
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.map_err(|e| e.to_string())?;
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freed += size as u64;
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}
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info!("[SmartCache] Freed {} bytes ({} needed)", freed, to_free);
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Ok(freed)
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_default_config() {
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let config = CacheConfig::default();
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assert_eq!(config.queue_precache_count, 3);
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assert_eq!(config.album_affinity_threshold, 3);
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assert!(!config.wifi_only); // wifi_only is false by default for easier preloading
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}
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#[test]
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fn test_album_affinity_tracking() {
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let cache = SmartCache::new(CacheConfig::default());
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// Track plays from same album
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cache.track_play("track1", Some("album1"));
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cache.track_play("track2", Some("album1"));
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// Below threshold
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assert!(!cache.should_cache_album("album1").unwrap_or(false));
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cache.track_play("track3", Some("album1"));
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// At threshold - should cache
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assert!(cache.should_cache_album("album1").unwrap_or(false));
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}
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|
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#[test]
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fn test_queue_precache_config() {
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let mut config = CacheConfig::default();
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config.queue_precache_enabled = false;
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let cache = SmartCache::new(config);
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assert!(!cache.should_precache_queue());
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let mut new_config = CacheConfig::default();
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new_config.wifi_only = false;
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cache.update_config(new_config);
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assert!(cache.should_precache_queue());
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}
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|
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#[test]
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fn test_wifi_only_does_not_disable_precaching() {
|
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// wifi_only must not short-circuit precaching: the network gate lives in
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// the download pump, which checks the *actual* transport. Enabling
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// WiFi-only while on WiFi should still precache.
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let mut config = CacheConfig::default();
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config.queue_precache_enabled = true;
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config.wifi_only = true;
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let cache = SmartCache::new(config);
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assert!(cache.should_precache_queue());
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}
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|
|
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/// Expiry reclaims only temporary entries that are actually past their life
|
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/// limit — never a user's download (which has no expiry), and never a
|
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/// temporary entry still within its life.
|
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///
|
|
/// TRACES: UR-071 | DR-127 | UT-120
|
|
#[tokio::test]
|
|
async fn test_reclaim_expired_only_takes_expired_temporary_entries() {
|
|
use crate::storage::db_service::{DatabaseService, RusqliteService};
|
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use rusqlite::Connection;
|
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use std::sync::{Arc, Mutex};
|
|
|
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let conn = Connection::open_in_memory().unwrap();
|
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conn.execute(
|
|
"CREATE TABLE downloads (
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id INTEGER PRIMARY KEY,
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user_id TEXT,
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status TEXT,
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file_size INTEGER,
|
|
file_path TEXT,
|
|
completed_at TEXT,
|
|
download_source TEXT DEFAULT 'user',
|
|
expires_at TEXT
|
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)",
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[],
|
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)
|
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.unwrap();
|
|
|
|
// `completed_at` is in SQLite's CURRENT_TIMESTAMP format (space, not
|
|
// 'T'), deliberately: the query has to compare it against an RFC-3339
|
|
// "now" and must not do so as raw strings.
|
|
for (path, source, completed, expires) in [
|
|
// Completed long ago, no override => derived expiry has passed.
|
|
("/tmp/jt-expired.mp4", "auto", "2026-01-01 00:00:00", None),
|
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// Completed yesterday => still inside the 7-day default TTL.
|
|
("/tmp/jt-fresh.mp4", "auto", "2026-05-31 00:00:00", None),
|
|
// Old, but an explicit override keeps it alive.
|
|
(
|
|
"/tmp/jt-override.mp4",
|
|
"auto",
|
|
"2026-01-01 00:00:00",
|
|
Some("2026-12-01T00:00:00+00:00"),
|
|
),
|
|
// A user download must never carry an expiry, but assert the sweep
|
|
// ignores it even if one were somehow set.
|
|
(
|
|
"/tmp/jt-user.mp4",
|
|
"user",
|
|
"2026-01-01 00:00:00",
|
|
Some("2026-01-01T00:00:00+00:00"),
|
|
),
|
|
(
|
|
"/tmp/jt-user-noexp.mp4",
|
|
"user",
|
|
"2026-01-01 00:00:00",
|
|
None,
|
|
),
|
|
] {
|
|
conn.execute(
|
|
"INSERT INTO downloads (user_id, status, file_size, file_path, download_source, completed_at, expires_at)
|
|
VALUES ('user1', 'completed', 10, ?1, ?2, ?3, ?4)",
|
|
rusqlite::params![path, source, completed, expires],
|
|
)
|
|
.unwrap();
|
|
}
|
|
|
|
let conn_arc = Arc::new(Mutex::new(conn));
|
|
let db_service = Arc::new(RusqliteService::new(conn_arc.clone()));
|
|
let cache = SmartCache::new(CacheConfig::default());
|
|
|
|
let reclaimed = cache
|
|
.reclaim_expired_async(&db_service, "user1", "2026-06-01T00:00:00+00:00")
|
|
.await
|
|
.unwrap();
|
|
assert_eq!(
|
|
reclaimed, 1,
|
|
"only the expired temporary entry is reclaimed"
|
|
);
|
|
|
|
let surviving: Vec<String> = {
|
|
let guard = conn_arc.lock_safe();
|
|
let mut stmt = guard
|
|
.prepare("SELECT file_path FROM downloads ORDER BY id")
|
|
.unwrap();
|
|
let rows = stmt
|
|
.query_map([], |row| row.get::<_, String>(0))
|
|
.unwrap()
|
|
.map(|r| r.unwrap())
|
|
.collect();
|
|
rows
|
|
};
|
|
assert_eq!(
|
|
surviving,
|
|
vec![
|
|
"/tmp/jt-fresh.mp4".to_string(),
|
|
"/tmp/jt-override.mp4".to_string(),
|
|
"/tmp/jt-user.mp4".to_string(),
|
|
"/tmp/jt-user-noexp.mp4".to_string(),
|
|
],
|
|
"entries within their life, those with a later override, and every user download must survive"
|
|
);
|
|
|
|
// TTL of 0 disables time-based reclaim entirely.
|
|
let cache_no_ttl = SmartCache::new(CacheConfig {
|
|
temporary_ttl_hours: 0,
|
|
..Default::default()
|
|
});
|
|
assert_eq!(
|
|
cache_no_ttl
|
|
.reclaim_expired_async(&db_service, "user1", "2027-01-01T00:00:00+00:00")
|
|
.await
|
|
.unwrap(),
|
|
0,
|
|
"a zero TTL leaves space pressure as the only reclaim trigger"
|
|
);
|
|
}
|
|
|
|
/// Eviction must only reclaim *temporary* (`download_source = 'auto'`)
|
|
/// downloads — the precache tier. A download the user explicitly asked for
|
|
/// is their file: it may be deleted by them, never by the cache making room
|
|
/// for a predictive fetch.
|
|
///
|
|
/// Before the fix, `evict_lru_async` selected every completed row ordered by
|
|
/// `completed_at ASC` with no source filter, so hitting the storage limit
|
|
/// deleted the *oldest* download — typically the film someone downloaded for
|
|
/// a flight — in favour of a newer auto-precached track.
|
|
///
|
|
/// TRACES: UR-071 | DR-126 | UT-108
|
|
#[tokio::test]
|
|
async fn test_evict_lru_never_deletes_user_downloads() {
|
|
use crate::storage::db_service::RusqliteService;
|
|
use rusqlite::Connection;
|
|
use std::sync::{Arc, Mutex};
|
|
|
|
let conn = Connection::open_in_memory().unwrap();
|
|
conn.execute(
|
|
"CREATE TABLE downloads (
|
|
id INTEGER PRIMARY KEY,
|
|
user_id TEXT,
|
|
status TEXT,
|
|
file_size INTEGER,
|
|
file_path TEXT,
|
|
completed_at TEXT,
|
|
download_source TEXT DEFAULT 'user'
|
|
)",
|
|
[],
|
|
)
|
|
.unwrap();
|
|
|
|
// The user's own download is the OLDEST, so a purely time-ordered
|
|
// eviction would take it first.
|
|
conn.execute(
|
|
"INSERT INTO downloads (user_id, status, file_size, file_path, completed_at, download_source)
|
|
VALUES ('user1', 'completed', 600, '/tmp/jellytau-test-user.mp4', '2026-01-01', 'user')",
|
|
[],
|
|
)
|
|
.unwrap();
|
|
// A newer, auto-precached item.
|
|
conn.execute(
|
|
"INSERT INTO downloads (user_id, status, file_size, file_path, completed_at, download_source)
|
|
VALUES ('user1', 'completed', 600, '/tmp/jellytau-test-auto.mp4', '2026-06-01', 'auto')",
|
|
[],
|
|
)
|
|
.unwrap();
|
|
|
|
let conn_arc = Arc::new(Mutex::new(conn));
|
|
let db_service = Arc::new(RusqliteService::new(conn_arc.clone()));
|
|
|
|
let cache = SmartCache::new(CacheConfig {
|
|
storage_limit: 1000,
|
|
..Default::default()
|
|
});
|
|
|
|
// 1200 bytes held against a 1000 limit: eviction must free something.
|
|
let freed = cache
|
|
.evict_lru_async(&db_service, "user1", 0)
|
|
.await
|
|
.unwrap();
|
|
assert!(freed > 0, "eviction should have reclaimed the auto entry");
|
|
|
|
let surviving: Vec<String> = {
|
|
let guard = conn_arc.lock_safe();
|
|
let mut stmt = guard
|
|
.prepare("SELECT download_source FROM downloads ORDER BY id")
|
|
.unwrap();
|
|
let rows = stmt
|
|
.query_map([], |row| row.get::<_, String>(0))
|
|
.unwrap()
|
|
.map(|r| r.unwrap())
|
|
.collect();
|
|
rows
|
|
};
|
|
|
|
assert_eq!(
|
|
surviving,
|
|
vec!["user".to_string()],
|
|
"the user's own download must survive; only the 'auto' entry is evictable"
|
|
);
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn test_storage_limit_check() {
|
|
use crate::storage::db_service::RusqliteService;
|
|
use rusqlite::Connection;
|
|
use std::sync::{Arc, Mutex};
|
|
|
|
let conn = Connection::open_in_memory().unwrap();
|
|
conn.execute(
|
|
"CREATE TABLE downloads (
|
|
id INTEGER PRIMARY KEY,
|
|
user_id TEXT,
|
|
status TEXT,
|
|
file_size INTEGER
|
|
)",
|
|
[],
|
|
)
|
|
.unwrap();
|
|
|
|
let conn_arc = Arc::new(Mutex::new(conn));
|
|
let db_service = Arc::new(RusqliteService::new(conn_arc.clone()));
|
|
|
|
let config = CacheConfig {
|
|
storage_limit: 1000,
|
|
..Default::default()
|
|
};
|
|
let cache = SmartCache::new(config);
|
|
|
|
// Empty - can download
|
|
assert!(cache.can_download_async(&db_service, "user1", 500).await);
|
|
|
|
// Add some downloads
|
|
{
|
|
let conn_guard = conn_arc.lock_safe();
|
|
conn_guard.execute(
|
|
"INSERT INTO downloads (user_id, status, file_size) VALUES ('user1', 'completed', 600)",
|
|
[],
|
|
)
|
|
.unwrap();
|
|
}
|
|
|
|
// Total would be 1100 > 1000
|
|
assert!(!cache.can_download_async(&db_service, "user1", 500).await);
|
|
|
|
// Smaller size fits
|
|
assert!(cache.can_download_async(&db_service, "user1", 300).await);
|
|
}
|
|
}
|