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https://github.com/ksyasuda/SubMiner.git
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feat(stats): speed up session maintenance and improve stats UI (#111)
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@@ -60,6 +60,34 @@ interface RetainedSessionRow {
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mediaBufferEvents: number;
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}
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const RETAINED_SESSION_METRICS_CTE = `
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retained_sessions AS (
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SELECT
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s.session_id,
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s.video_id,
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v.anime_id,
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s.started_at_ms,
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s.ended_at_ms,
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MAX(COALESCE(t.active_watched_ms, s.active_watched_ms, 0), 0) AS active_ms,
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MAX(COALESCE(t.cards_mined, s.cards_mined, 0), 0) AS cards_mined,
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MAX(COALESCE(t.lines_seen, s.lines_seen, 0), 0) AS lines_seen,
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MAX(COALESCE(t.tokens_seen, s.tokens_seen, 0), 0) AS tokens_seen,
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CASE WHEN v.watched > 0 THEN 1 ELSE 0 END AS completed
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FROM imm_sessions s
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JOIN imm_videos v
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ON v.video_id = s.video_id
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LEFT JOIN imm_session_telemetry t
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ON t.telemetry_id = (
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SELECT telemetry_id
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FROM imm_session_telemetry
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WHERE session_id = s.session_id
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ORDER BY sample_ms DESC, telemetry_id DESC
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LIMIT 1
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)
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WHERE s.ended_at_ms IS NOT NULL
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)
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`;
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function hasRetainedPriorSession(
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db: DatabaseSync,
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videoId: number,
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@@ -154,54 +182,150 @@ function rebuildLifetimeSummariesInternal(
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db: DatabaseSync,
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rebuiltAtMs: number,
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): LifetimeRebuildSummary {
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const rows = db
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.prepare(
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`
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SELECT
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session_id AS sessionId,
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video_id AS videoId,
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started_at_ms AS startedAtMs,
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ended_at_ms AS endedAtMs,
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ended_media_ms AS lastMediaMs,
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total_watched_ms AS totalWatchedMs,
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active_watched_ms AS activeWatchedMs,
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lines_seen AS linesSeen,
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tokens_seen AS tokensSeen,
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cards_mined AS cardsMined,
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lookup_count AS lookupCount,
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lookup_hits AS lookupHits,
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yomitan_lookup_count AS yomitanLookupCount,
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pause_count AS pauseCount,
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pause_ms AS pauseMs,
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seek_forward_count AS seekForwardCount,
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seek_backward_count AS seekBackwardCount,
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media_buffer_events AS mediaBufferEvents
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FROM imm_sessions
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WHERE ended_at_ms IS NOT NULL
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ORDER BY started_at_ms ASC, session_id ASC
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`,
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)
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.all() as Array<
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Omit<RetainedSessionRow, 'startedAtMs' | 'endedAtMs' | 'lastMediaMs'> & {
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startedAtMs: number | string;
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endedAtMs: number | string;
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lastMediaMs: number | string | null;
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}
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>;
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const sessions = rows.map((row) => ({
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...row,
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startedAtMs: row.startedAtMs,
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endedAtMs: row.endedAtMs,
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lastMediaMs: row.lastMediaMs === null ? null : Number(row.lastMediaMs),
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})) as RetainedSessionRow[];
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const rebuiltAtDbMs = toDbTimestamp(rebuiltAtMs);
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const appliedSessions = Number(
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(
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db
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.prepare('SELECT COUNT(*) AS total FROM imm_sessions WHERE ended_at_ms IS NOT NULL')
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.get() as { total: number }
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).total,
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);
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resetLifetimeSummaries(db, rebuiltAtMs);
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for (const session of sessions) {
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applySessionLifetimeSummary(db, toRebuildSessionState(session), session.endedAtMs);
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}
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db.prepare(
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`
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INSERT INTO imm_lifetime_applied_sessions (
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session_id,
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applied_at_ms,
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CREATED_DATE,
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LAST_UPDATE_DATE
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)
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SELECT
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session_id,
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ended_at_ms,
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?,
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?
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FROM imm_sessions
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WHERE ended_at_ms IS NOT NULL
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`,
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).run(rebuiltAtDbMs, rebuiltAtDbMs);
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db.prepare(
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`
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WITH ${RETAINED_SESSION_METRICS_CTE}
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INSERT INTO imm_lifetime_media (
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video_id,
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total_sessions,
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total_active_ms,
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total_cards,
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total_lines_seen,
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total_tokens_seen,
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completed,
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first_watched_ms,
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last_watched_ms,
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CREATED_DATE,
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LAST_UPDATE_DATE
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)
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SELECT
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video_id,
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COUNT(*) AS total_sessions,
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COALESCE(SUM(active_ms), 0) AS total_active_ms,
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COALESCE(SUM(cards_mined), 0) AS total_cards,
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COALESCE(SUM(lines_seen), 0) AS total_lines_seen,
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COALESCE(SUM(tokens_seen), 0) AS total_tokens_seen,
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MAX(completed) AS completed,
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MIN(started_at_ms) AS first_watched_ms,
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MAX(ended_at_ms) AS last_watched_ms,
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? AS CREATED_DATE,
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? AS LAST_UPDATE_DATE
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FROM retained_sessions
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GROUP BY video_id
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`,
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).run(rebuiltAtDbMs, rebuiltAtDbMs);
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db.prepare(
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`
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WITH ${RETAINED_SESSION_METRICS_CTE}
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INSERT INTO imm_lifetime_anime (
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anime_id,
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total_sessions,
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total_active_ms,
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total_cards,
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total_lines_seen,
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total_tokens_seen,
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episodes_started,
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episodes_completed,
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first_watched_ms,
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last_watched_ms,
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CREATED_DATE,
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LAST_UPDATE_DATE
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)
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SELECT
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anime_id,
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COUNT(*) AS total_sessions,
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COALESCE(SUM(active_ms), 0) AS total_active_ms,
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COALESCE(SUM(cards_mined), 0) AS total_cards,
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COALESCE(SUM(lines_seen), 0) AS total_lines_seen,
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COALESCE(SUM(tokens_seen), 0) AS total_tokens_seen,
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COUNT(DISTINCT video_id) AS episodes_started,
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COUNT(DISTINCT CASE WHEN completed > 0 THEN video_id END) AS episodes_completed,
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MIN(started_at_ms) AS first_watched_ms,
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MAX(ended_at_ms) AS last_watched_ms,
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? AS CREATED_DATE,
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? AS LAST_UPDATE_DATE
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FROM retained_sessions
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WHERE anime_id IS NOT NULL
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GROUP BY anime_id
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`,
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).run(rebuiltAtDbMs, rebuiltAtDbMs);
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db.prepare(
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`
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WITH ${RETAINED_SESSION_METRICS_CTE},
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anime_completion AS (
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SELECT
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rs.anime_id,
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MAX(a.episodes_total) AS episodes_total,
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COUNT(DISTINCT CASE WHEN rs.completed > 0 THEN rs.video_id END) AS completed_videos
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FROM retained_sessions rs
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JOIN imm_anime a
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ON a.anime_id = rs.anime_id
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WHERE rs.anime_id IS NOT NULL
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GROUP BY rs.anime_id
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)
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UPDATE imm_lifetime_global
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SET
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total_sessions = (SELECT COUNT(*) FROM retained_sessions),
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total_active_ms = (SELECT COALESCE(SUM(active_ms), 0) FROM retained_sessions),
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total_cards = (SELECT COALESCE(SUM(cards_mined), 0) FROM retained_sessions),
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active_days = (
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SELECT COUNT(DISTINCT CAST(
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julianday(CAST(started_at_ms AS REAL) / 1000, 'unixepoch', 'localtime') - 2440587.5
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AS INTEGER
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))
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FROM retained_sessions
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),
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episodes_started = (SELECT COUNT(DISTINCT video_id) FROM retained_sessions),
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episodes_completed = (
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SELECT COUNT(DISTINCT CASE WHEN completed > 0 THEN video_id END)
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FROM retained_sessions
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),
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anime_completed = (
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SELECT COUNT(*)
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FROM anime_completion
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WHERE episodes_total IS NOT NULL
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AND episodes_total > 0
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AND completed_videos >= episodes_total
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),
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last_rebuilt_ms = ?,
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LAST_UPDATE_DATE = ?
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WHERE global_id = 1
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`,
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).run(rebuiltAtDbMs, rebuiltAtDbMs);
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return {
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appliedSessions: sessions.length,
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appliedSessions,
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rebuiltAtMs,
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};
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}
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