Felix Förtsch
b1a9eeb481
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403 lines
15 KiB
TypeScript
403 lines
15 KiB
TypeScript
import { Hono } from "hono";
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import { stream } from "hono/streaming";
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import { getAllConfig, getConfig, getDb, setConfig } from "../db/index";
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import { log, error as logError, warn } from "../lib/log";
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import { getAllItems, getDevItems } from "../services/jellyfin";
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import { loadLibrary as loadRadarrLibrary, isUsable as radarrUsable } from "../services/radarr";
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import { upsertJellyfinItem } from "../services/rescan";
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import { isInScanWindow, msUntilScanWindow, nextScanWindowTime, waitForScanWindow } from "../services/scheduler";
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import { loadLibrary as loadSonarrLibrary, isUsable as sonarrUsable } from "../services/sonarr";
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const app = new Hono();
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/**
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* Validate a scan `limit` input. Must be a positive integer or absent —
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* NaN/negatives/non-numerics would disable the progress cap
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* (`processed >= NaN` never trips) or produce bogus totals via
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* `Math.min(NaN, …)`. Exported for unit tests.
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*/
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export function parseScanLimit(raw: unknown): { ok: true; value: number | null } | { ok: false } {
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if (raw == null || raw === "") return { ok: true, value: null };
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const n = typeof raw === "number" ? raw : Number(raw);
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if (!Number.isInteger(n) || n <= 0) return { ok: false };
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return { ok: true, value: n };
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}
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type ScanStatusFilter = "all" | "pending" | "scanned" | "error";
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type ScanTypeFilter = "all" | "movie" | "episode";
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type ScanSourceFilter = "all" | "scan" | "webhook";
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export interface ScanItemsQuery {
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offset: number;
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limit: number;
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search: string;
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status: ScanStatusFilter;
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type: ScanTypeFilter;
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source: ScanSourceFilter;
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}
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function parsePositiveInt(raw: unknown, fallback: number): number {
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const n = typeof raw === "number" ? raw : Number(raw);
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if (!Number.isFinite(n)) return fallback;
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if (!Number.isInteger(n)) return fallback;
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return n;
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}
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function clamp(n: number, min: number, max: number): number {
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if (n < min) return min;
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if (n > max) return max;
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return n;
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}
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function parseOneOf<T extends readonly string[]>(raw: unknown, allowed: T, fallback: T[number]): T[number] {
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if (typeof raw !== "string") return fallback;
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const lowered = raw.toLowerCase();
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return (allowed as readonly string[]).includes(lowered) ? (lowered as T[number]) : fallback;
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}
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export function parseScanItemsQuery(raw: Record<string, unknown>): ScanItemsQuery {
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const limit = clamp(parsePositiveInt(raw.limit, 50), 1, 200);
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const offset = Math.max(0, parsePositiveInt(raw.offset, 0));
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const search = typeof raw.q === "string" ? raw.q.trim() : "";
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return {
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offset,
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limit,
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search,
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status: parseOneOf(raw.status, ["all", "pending", "scanned", "error"] as const, "all"),
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type: parseOneOf(raw.type, ["all", "movie", "episode"] as const, "all"),
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source: parseOneOf(raw.source, ["all", "scan", "webhook"] as const, "all"),
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};
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}
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export function buildScanItemsWhere(query: ScanItemsQuery): { sql: string; args: unknown[] } {
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const clauses: string[] = [];
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const args: unknown[] = [];
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if (query.status !== "all") {
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clauses.push("scan_status = ?");
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args.push(query.status);
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}
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if (query.type !== "all") {
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clauses.push("lower(type) = ?");
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args.push(query.type);
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}
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if (query.source !== "all") {
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clauses.push("ingest_source = ?");
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args.push(query.source);
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}
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if (query.search.length > 0) {
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clauses.push("(lower(name) LIKE ? OR lower(file_path) LIKE ?)");
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const needle = `%${query.search.toLowerCase()}%`;
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args.push(needle, needle);
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}
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return {
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sql: clauses.length > 0 ? `WHERE ${clauses.join(" AND ")}` : "",
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args,
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};
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}
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// ─── State ────────────────────────────────────────────────────────────────────
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let scanAbort: AbortController | null = null;
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const scanListeners = new Set<(data: string) => void>();
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function emitSse(type: string, data: unknown): void {
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const line = `event: ${type}\ndata: ${JSON.stringify(data)}\n\n`;
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for (const listener of scanListeners) listener(line);
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}
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function currentScanLimit(): number | null {
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const v = getConfig("scan_limit");
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return v ? Number(v) : null;
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}
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function parseLanguageList(raw: string | null, fallback: string[]): string[] {
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if (!raw) return fallback;
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try {
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const parsed = JSON.parse(raw);
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return Array.isArray(parsed) ? parsed.filter((v): v is string => typeof v === "string") : fallback;
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} catch {
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return fallback;
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}
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}
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// ─── Status ───────────────────────────────────────────────────────────────────
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app.get("/", (c) => {
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const db = getDb();
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const running = getConfig("scan_running") === "1";
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const total = (db.prepare("SELECT COUNT(*) as n FROM media_items").get() as { n: number }).n;
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const scanned = (
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db.prepare("SELECT COUNT(*) as n FROM media_items WHERE scan_status = 'scanned'").get() as { n: number }
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).n;
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const errors = (db.prepare("SELECT COUNT(*) as n FROM media_items WHERE scan_status = 'error'").get() as { n: number })
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.n;
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const recentItems = db
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.prepare(
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"SELECT name, type, scan_status, file_path, last_scanned_at, ingest_source FROM media_items ORDER BY COALESCE(last_scanned_at, created_at) DESC, id DESC LIMIT 5",
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)
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.all() as {
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name: string;
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type: string;
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scan_status: string;
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file_path: string;
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last_scanned_at: string | null;
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ingest_source: string | null;
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}[];
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return c.json({ running, progress: { scanned, total, errors }, recentItems, scanLimit: currentScanLimit() });
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});
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app.get("/items", (c) => {
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const db = getDb();
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const query = parseScanItemsQuery({
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offset: c.req.query("offset"),
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limit: c.req.query("limit"),
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q: c.req.query("q"),
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status: c.req.query("status"),
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type: c.req.query("type"),
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source: c.req.query("source"),
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});
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const where = buildScanItemsWhere(query);
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const rows = db
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.prepare(
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`
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SELECT id, jellyfin_id, name, type, series_name, season_number, episode_number,
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scan_status, original_language, orig_lang_source, container, file_size, file_path,
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last_scanned_at, ingest_source
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FROM media_items
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${where.sql}
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ORDER BY COALESCE(last_scanned_at, created_at) DESC, id DESC
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LIMIT ? OFFSET ?
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`,
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)
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.all(...where.args, query.limit, query.offset) as Array<{
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id: number;
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jellyfin_id: string;
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name: string;
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type: string;
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series_name: string | null;
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season_number: number | null;
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episode_number: number | null;
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scan_status: string;
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original_language: string | null;
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orig_lang_source: string | null;
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container: string | null;
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file_size: number | null;
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file_path: string;
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last_scanned_at: string | null;
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ingest_source: string | null;
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}>;
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const total = (db.prepare(`SELECT COUNT(*) as n FROM media_items ${where.sql}`).get(...where.args) as { n: number }).n;
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return c.json({ rows, total, hasMore: query.offset + rows.length < total, query });
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});
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// ─── Start ────────────────────────────────────────────────────────────────────
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app.post("/start", async (c) => {
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const db = getDb();
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// Atomic claim: only succeed if scan_running is not already '1'.
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const claim = db.prepare("UPDATE config SET value = '1' WHERE key = 'scan_running' AND value != '1'").run();
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if (claim.changes === 0) {
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return c.json({ ok: false, error: "Scan already running" }, 409);
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}
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const body = await c.req.json<{ limit?: unknown }>().catch(() => ({ limit: undefined }));
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const formLimit = parseScanLimit(body.limit);
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const envLimit = parseScanLimit(process.env.SCAN_LIMIT);
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if (!formLimit.ok || !envLimit.ok) {
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db.prepare("UPDATE config SET value = '0' WHERE key = 'scan_running'").run();
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return c.json({ ok: false, error: "limit must be a positive integer" }, 400);
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}
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const limit: number | null = formLimit.value ?? envLimit.value ?? null;
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setConfig("scan_limit", limit != null ? String(limit) : "");
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runScan(limit).catch((err) => {
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logError("Scan failed:", err);
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setConfig("scan_running", "0");
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emitSse("error", { message: String(err) });
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});
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return c.json({ ok: true });
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});
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// ─── Stop ─────────────────────────────────────────────────────────────────────
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app.post("/stop", (c) => {
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scanAbort?.abort();
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setConfig("scan_running", "0");
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return c.json({ ok: true });
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});
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// ─── SSE ──────────────────────────────────────────────────────────────────────
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app.get("/events", (c) => {
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return stream(c, async (s) => {
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c.header("Content-Type", "text/event-stream");
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c.header("Cache-Control", "no-cache");
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c.header("Connection", "keep-alive");
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const queue: string[] = [];
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let resolve: (() => void) | null = null;
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const listener = (data: string) => {
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queue.push(data);
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resolve?.();
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};
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scanListeners.add(listener);
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s.onAbort(() => {
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scanListeners.delete(listener);
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});
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try {
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while (!s.closed) {
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if (queue.length > 0) {
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await s.write(queue.shift()!);
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} else {
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await new Promise<void>((res) => {
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resolve = res;
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setTimeout(res, 25_000);
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});
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resolve = null;
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if (queue.length === 0) await s.write(": keepalive\n\n");
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}
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}
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} finally {
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scanListeners.delete(listener);
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}
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});
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});
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// ─── Core scan logic ──────────────────────────────────────────────────────────
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async function runScan(limit: number | null = null): Promise<void> {
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log(`Scan started${limit ? ` (limit: ${limit})` : ""}`);
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scanAbort = new AbortController();
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const { signal } = scanAbort;
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const isDev = process.env.NODE_ENV === "development";
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const db = getDb();
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if (isDev) {
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// Order matters only if foreign keys are enforced without CASCADE; we
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// have ON DELETE CASCADE on media_streams/review_plans/stream_decisions/
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// subtitle_files/jobs, so deleting media_items would be enough. List
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// them explicitly for clarity and to survive future schema drift.
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db.prepare("DELETE FROM jobs").run();
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db.prepare("DELETE FROM subtitle_files").run();
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db.prepare("DELETE FROM stream_decisions").run();
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db.prepare("DELETE FROM review_plans").run();
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db.prepare("DELETE FROM media_streams").run();
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db.prepare("DELETE FROM media_items").run();
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}
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const cfg = getAllConfig();
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const jellyfinCfg = { url: cfg.jellyfin_url, apiKey: cfg.jellyfin_api_key, userId: cfg.jellyfin_user_id };
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const audioLanguages = parseLanguageList(cfg.audio_languages ?? null, []);
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const radarrCfg = { url: cfg.radarr_url, apiKey: cfg.radarr_api_key };
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const sonarrCfg = { url: cfg.sonarr_url, apiKey: cfg.sonarr_api_key };
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// 'enabled' in config means the user toggled it on. Only actually use it
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// if the URL+key pass URL parsing — otherwise we'd hit ERR_INVALID_URL on
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// every item. Refuse to call invalid endpoints rather than spamming logs.
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const radarrEnabled = cfg.radarr_enabled === "1" && radarrUsable(radarrCfg);
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const sonarrEnabled = cfg.sonarr_enabled === "1" && sonarrUsable(sonarrCfg);
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if (cfg.radarr_enabled === "1" && !radarrEnabled) {
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warn(`Radarr is enabled in config but URL/API key is invalid (url='${cfg.radarr_url}') — skipping Radarr lookups`);
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}
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if (cfg.sonarr_enabled === "1" && !sonarrEnabled) {
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warn(`Sonarr is enabled in config but URL/API key is invalid (url='${cfg.sonarr_url}') — skipping Sonarr lookups`);
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}
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// Pre-load both libraries once so per-item lookups are O(1) cache hits
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// instead of HTTP round-trips. The previous code called /api/v3/movie
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// (the entire library!) once per item that didn't match by tmdbId.
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const [radarrLibrary, sonarrLibrary] = await Promise.all([
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radarrEnabled ? loadRadarrLibrary(radarrCfg) : Promise.resolve(null),
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sonarrEnabled ? loadSonarrLibrary(sonarrCfg) : Promise.resolve(null),
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]);
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log(
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`External language sources: radarr=${radarrEnabled ? `enabled (${cfg.radarr_url}, ${radarrLibrary?.byTmdbId.size ?? 0} movies in library)` : "disabled"}, sonarr=${sonarrEnabled ? `enabled (${cfg.sonarr_url}, ${sonarrLibrary?.byTvdbId.size ?? 0} series in library)` : "disabled"}`,
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);
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let processed = 0;
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let errors = 0;
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let total = 0;
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const rescanCfg = {
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audioLanguages,
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radarr: radarrEnabled ? radarrCfg : null,
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sonarr: sonarrEnabled ? sonarrCfg : null,
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radarrLibrary,
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sonarrLibrary,
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};
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let radarrMisses = 0;
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let radarrHits = 0;
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let sonarrMisses = 0;
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let sonarrHits = 0;
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let missingProviderIds = 0;
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const itemSource = isDev
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? getDevItems(jellyfinCfg)
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: getAllItems(jellyfinCfg, (_fetched, jellyfinTotal) => {
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total = limit != null ? Math.min(limit, jellyfinTotal) : jellyfinTotal;
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});
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for await (const jellyfinItem of itemSource) {
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if (signal.aborted) break;
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if (!isDev && limit != null && processed >= limit) break;
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if (!jellyfinItem.Name || !jellyfinItem.Path) {
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warn(`Skipping item without name/path: id=${jellyfinItem.Id}`);
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continue;
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}
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// Honour the scan window between items so overnight-only setups don't hog
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// Jellyfin during the day. Checked between items rather than mid-item so
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// we don't leave a partial upsert sitting in flight.
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if (!isInScanWindow()) {
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emitSse("paused", {
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until: nextScanWindowTime(),
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seconds: Math.round(msUntilScanWindow() / 1000),
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});
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await waitForScanWindow();
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if (signal.aborted) break;
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emitSse("resumed", {});
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}
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processed++;
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emitSse("progress", { scanned: processed, total, current_item: jellyfinItem.Name, errors, running: true });
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try {
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const result = await upsertJellyfinItem(db, jellyfinItem, rescanCfg);
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if (result.radarrHit) radarrHits++;
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if (result.radarrMiss) radarrMisses++;
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if (result.sonarrHit) sonarrHits++;
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if (result.sonarrMiss) sonarrMisses++;
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if (result.missingProviderId) missingProviderIds++;
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emitSse("log", { name: jellyfinItem.Name, type: jellyfinItem.Type, status: "scanned", file: jellyfinItem.Path });
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} catch (err) {
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errors++;
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logError(`Error scanning ${jellyfinItem.Name}:`, err);
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try {
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db
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.prepare("UPDATE media_items SET scan_status = 'error', scan_error = ? WHERE jellyfin_id = ?")
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.run(String(err), jellyfinItem.Id);
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} catch (dbErr) {
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// Failed to persist the error status — log it so the incident
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// doesn't disappear silently. We can't do much more; the outer
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// loop continues so the scan still finishes.
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logError(`Failed to record scan error for ${jellyfinItem.Id}:`, dbErr);
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}
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emitSse("log", { name: jellyfinItem.Name, type: jellyfinItem.Type, status: "error", file: jellyfinItem.Path });
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}
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}
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setConfig("scan_running", "0");
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log(`Scan complete: ${processed} scanned, ${errors} errors`);
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log(
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` language sources: radarr hits=${radarrHits} misses=${radarrMisses}, sonarr hits=${sonarrHits} misses=${sonarrMisses}, no provider id=${missingProviderIds}`,
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);
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emitSse("complete", { scanned: processed, total, errors });
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}
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export default app;
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