tracker

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1. // tmdbsync.hl — THE TMDB SYNC (tracker.worldapi.org#9): for every show SOMEONE follows, fetch the show's
2. // details, seasons and episodes from TMDB and bring storage/mpackdb/ up to date, plus the show's poster.
3. // Used by BOTH runners: the daily run inside the app (project.hl `syncTick`, one show per step) and the
4. // command-line tool (tools/sync-tmdb.hl). Reference for the API use: the old tracker's
5. // crates/sync/commands/sync.js (read-only).
6. //
7. // GET <TMDB_BASE_URL>/tv/<tmdbId>?append_to_response=external_ids,aggregate_credits the details (status,
8. // counts, overview, poster_path, seasons[])
9. // + external_ids (imdb_id, tvdb_id) + the cast/crew
10. // of every season (tracker#28: the answer goes back
11. // as `res.details`, the caller stores the credits —
12. // details.hl applyCredits; no extra request)
13. // GET <TMDB_BASE_URL>/tv/<tmdbId>?append_to_response=season/1,season/2… up to 20 seasons with their
14. // episodes in ONE request
15. // GET <TMDB_IMAGE_URL>/w342<poster_path> the poster → storage/mpackdb/posters/
16. // Authorization: Bearer $TMDB_READ_TOKEN
17. // GET <TVMAZE_BASE_URL>/lookup/shows?imdb=tt… (else ?thetvdb=<id>) the TVmaze id, ONLY when the show
18. // has none (301 → /shows/<id>, 404 = unknown)
19. // GET <TVMAZE_BASE_URL>/shows/<tvmzId>?embed=episodes a SERIES on TVmaze with its episodes (#15), see
20. // below; its summary → `tvmazeSummary` (tracker#18)
21. // A MOVIE (`type = 'movie'`, 7814 of the migrated rows, 1 followed): only
22. // GET <TMDB_BASE_URL>/movie/<tmdbId>?append_to_response=external_ids,credits its imdb id + poster (+ credits); no seasons,
23. // status, overview (it is no TV show)
24. //
25. // EXTERNAL IDS (tracker.worldapi.org#12, the show page's link icons): a MISSING imdbId/tvdbId is filled from TMDB's
26. // external_ids, a missing tvmzId from TVmaze's lookup — an id the show already has is NEVER overwritten.
27. // RULES (ticket): new seasons/episodes are ADDED, existing ones UPDATED (title, summary, release) —
28. // matched by tmdbId, never duplicated; NOTHING is deleted. An episode without a tmdbId (161 migrated ones)
29. // is matched by its S/E number instead and gets the tmdbId. A season (no tmdbId in the migrated data) is
30. // matched by (show, seasonNumber). A TMDB value that is empty/null never overwrites a stored one.
31. // Season 0 ("Specials") is only synced for a show that already has a season 0 (else every followed show
32. // would suddenly flood /my/unwatched with specials); a TMDB season with no episodes is not created.
33. //
34. // TVMAZE MERGE (tracker.worldapi.org#15): AFTER TMDB, a series with a tvmzId gets TVmaze's episode list (one request)
35. // and TVmaze FILLS GAPS only — matched by season/episode number: a missing episode (and its season) is ADDED, an empty
36. // title or air date of an existing one is FILLED; a value TMDB gave is never overwritten. A placeholder title
37. // ("Episode 4", "TBA") counts as empty — and TMDB's own placeholder never overwrites a real title either (else the
38. // two would flip it every day). When TMDB later lists the episode, the TMDB step adopts it by number (it has no tmdbId)
39. // and TMDB's values win. TVmaze specials (no episode number) are skipped, season 0 only if the show has one. SAFETY:
40. // when the two number a show differently (fewer than 80 % of the episodes both know air within a day of each other or
41. // share the title — `numberingAgrees`), TVmaze is ignored for that show (`tvmazeSkipped`). Summaries are not taken
42. // (TVmaze's are HTML; the ticket asks for episodes, air dates, titles). The SHOW's TVmaze summary is kept, HTML stripped, as
43. // `tvmazeSummary` (tracker#18; the page shows summary > tmdbSummary > tvmazeSummary, shows.hl summaryOf).
44. //
45. // WHICH TITLES, WHEN (tracker#18): the daily run asks TMDB's and TVmaze's change lists first and syncs only the titles of ours
46. // that changed — deltasync.hl. THE SHOW RECORD (title, tagline, homepage, status, genres …) is refreshed from the same details
47. // answer by details.hl `applySynced`.
48. //
49. // ADULT FLAG (mission 054): every details answer carries TMDB's `adult` — the sync, the import (search.hl) and the
50. // BACKFILL below store it as show.adult (true/false; null = not known yet, hidden from the public lists, shows.hl
51. // isPublicTitle). THE BACKFILL (`backfillTitle`, run one title per step by project.hl `backfillTick`, like the daily sync):
52. // GET <TMDB_BASE_URL>/movie|tv/<tmdbId>?append_to_response=external_ids ONE request: adult, poster_path, imdb/tvdb id
53. // GET <TMDB_IMAGE_URL>/w342<poster_path> the poster when its file is missing (not for
54. // an adult title — never shown, mission 056)
55. // for every title whose adult flag is unknown (no TVmaze, no seasons — the daily sync does those for followed shows). A
56. // title TMDB answers 404 for (or one without tmdbId) gets `adultCheck` = why, stays unknown (hidden) and is not asked again.
57. //
58. // IDS ARE SELF-ASSIGNED (randomBytes, like watches.hl): hl:mpackdb's own generated @id can repeat within
59. // one millisecond, which is what made update() lose rows (hybriel#113, fixed upstream, not in the vendored
60. // build) — a table holding only unique ids is safe to update().
61. //
62. // ONE PROCESS PER STORAGE: hl:mpackdb does not coordinate two processes (hybriel#21) — the in-app run uses
63. // the app's own open tables (imported from shows.hl); the tool only ever runs against a stopped app or a copy.
64. //
65. // Env: TMDB_READ_TOKEN (required unless TMDB_BASE_URL points at a fake), TMDB_BASE_URL
66. // (https://api.themoviedb.org/3), TMDB_IMAGE_URL (https://image.tmdb.org/t/p) — the gate points both at its
67. // fake TMDB (tests/browser.mjs).
68. import { fetch } from 'hl:fetch'
69. import { env } from 'hl:proc'
70. import { now } from 'hl:time'
71. import { randomBytes } from 'hl:crypto'
72. import { writeFile, mkDir, exists } from 'hl:fs'
73. import { showsTable, seasonsTable, episodesTable, storageDir } from './shows.hl'
75. static envOr = (name, fallback) => {
76. let v = env(name)
77. return v != null && v.trim() != '' ? v.trim() : fallback
78. }
79. static tmdbBase = envOr('TMDB_BASE_URL', 'https://api.themoviedb.org/3')
80. static tmdbImageBase = envOr('TMDB_IMAGE_URL', 'https://image.tmdb.org/t/p')
81. static tmdbToken = envOr('TMDB_READ_TOKEN', '')
82. static postersDir = storageDir + '/posters'
84. static tvmazeBase = envOr('TVMAZE_BASE_URL', 'https://api.tvmaze.com')
86. // the sync can run: a token is set (never printed) — the dev .env on Loreana has one, a gate sets its own
87. static syncEnabled = tmdbToken != ''
89. // TMDB allows 40 requests / 10 s: every runner waits this long per request it made before the next show
90. static msPerRequest = 260
91. // TVmaze allows 20 requests / 10 s (its API docs): 550 ms per lookup made
92. static msPerTvmazeRequest = 550
93. // how long a runner waits after a show before the next one (both runners: project.hl syncTick, tools/sync-tmdb.hl)
94. static pauseMsAfter = (r) => { return r.requests * msPerRequest + r.tvmazeRequests * msPerTvmazeRequest }
96. // one GET → the parsed JSON, or { failed = '<why>' }. A refused/timed-out fetch is an Error event (absorbed
97. // by the runner's `on Error`), the fetch then yields null.
98. static tmdbGet = (path) => {
99. let r = fetch(tmdbBase + path, { headers = { 'authorization' = 'Bearer ' + tmdbToken 'accept' = 'application/json' 'user-agent' = 'tracker.worldapi.org (tmdb sync)' } timeoutMs = 20000 })
100. if (r == null || r.status == null || r.status == 0) { return { failed = 'no answer for ' + path } }
101. if (r.status != 200) { return { failed = 'HTTP ' + r.status + ' for ' + path status = r.status } }
102. let j = r.json()
103. if (j == null) { return { failed = 'no JSON for ' + path } }
104. return j
105. }
107. static textOr = (v) => { return v != null && hlTypeName(v) == 'String' && v.trim() != '' ? v : null }
109. // ---- external ids (tracker.worldapi.org#12) -----------------------------------------------------
110. static hasId = (v) => { return v != null && ('' + v).trim() != '' }
111. // an IMDb id as TMDB gives it ('tt' + digits), else null
112. static imdbOr = (v) => {
113. let t = textOr(v)
114. if (t == null || t.length < 3 || t.slice(0, 2) != 'tt') { return null }
115. let i = 2
116. while (i < t.length) {
117. if (!'0123456789'.includes(t[i])) { return null }
118. i = i + 1
119. }
120. return t
121. }
122. // a positive numeric id (TMDB's tvdb_id, TVmaze's id), else null
123. static numIdOr = (v) => { return v != null && hlTypeName(v) == 'Number' && v > 0 ? v : null }
125. // TVmaze's lookup by one external id: { id } (null = TVmaze doesn't know it, 404) or { failed }. hl:fetch follows the
126. // 301 to /shows/<id> by itself, so a hit answers the show's own JSON.
127. static tvmazeLookup = (param, value) => {
128. let r = fetch(tvmazeBase + '/lookup/shows?' + param + '=' + value, { headers = { 'accept' = 'application/json' 'user-agent' = 'tracker.worldapi.org (tmdb sync)' } timeoutMs = 20000 })
129. if (r == null || r.status == null || r.status == 0) { return { failed = 'TVmaze: no answer for ' + param + '=' + value } }
130. if (r.status == 404) { return { id = null } }
131. if (r.status != 200) { return { failed = 'TVmaze: HTTP ' + r.status + ' for ' + param + '=' + value } }
132. let j = r.json()
133. if (j == null || numIdOr(j.id) == null) { return { failed = 'TVmaze: no id for ' + param + '=' + value } }
134. return { id = j.id }
135. }
137. // the ids to SET on a show from TMDB's external_ids (+ TVmaze for a series): { imdbId, tvdbId, tvmzId } — each the
138. // show's own value when it has one (never overwritten), else the found one, else null — plus { filled, tvmazeRequests,
139. // failed }. TVmaze is asked by imdb, then by thetvdb, only while the show (after TMDB) still has no tvmzId — and only
140. // when `askTvmaze` (the adult backfill does not: one request per title)
141. static externalIdsFor = (show, ext, isSeries, askTvmaze) => {
142. let out = { imdbId = show.imdbId tvdbId = show.tvdbId tvmzId = show.tvmzId filled = 0 tvmazeRequests = 0 failed = null }
143. let e = ext != null ? ext : {}
144. if (!hasId(out.imdbId) && imdbOr(e.imdb_id) != null) { out.imdbId = e.imdb_id out.filled = out.filled + 1 }
145. if (!isSeries) { return out }
146. if (!hasId(out.tvdbId) && numIdOr(e.tvdb_id) != null) { out.tvdbId = e.tvdb_id out.filled = out.filled + 1 }
147. if (hasId(out.tvmzId) || !askTvmaze) { return out }
148. let tries = []
149. if (imdbOr('' + out.imdbId) != null) { tries.push({ param = 'imdb' value = '' + out.imdbId }) }
150. if (numIdOr(out.tvdbId) != null) { tries.push({ param = 'thetvdb' value = '' + out.tvdbId }) }
151. for (t of tries) {
152. if (!hasId(out.tvmzId) && out.failed == null) {
153. out.tvmazeRequests = out.tvmazeRequests + 1
154. let found = tvmazeLookup(t.param, t.value)
155. if (found.failed != null) { out.failed = found.failed } else if (found.id != null) { out.tvmzId = found.id out.filled = out.filled + 1 }
156. }
157. }
158. return out
159. }
161. // ---- TVmaze merge (tracker.worldapi.org#15) ------------------------------------------------------
162. // a title that is none yet: empty, "TBA"/"TBD", or "Episode <n>" (what TMDB and TVmaze name an untitled episode; also
163. // French/German/Spanish: real data has TVmaze "Épisode 1" where TMDB says "Episode 1")
164. static placeholderWords = ['episode', 'épisode', 'Épisode', 'folge', 'episodio']
165. static isPlaceholderTitle = (v) => {
166. let t = textOr(v)
167. if (t == null) { return true }
168. let l = t.trim().toLowerCase()
169. if (l == 'tba' || l == 'tbd' || l == 'tba.' || l == 'to be announced') { return true }
170. let parts = l.split(' ')
171. if (parts.length != 2 || !placeholderWords.includes(parts[0]) || parts[1].length == 0) { return false }
172. let i = 0
173. while (i < parts[1].length) {
174. if (!'0123456789'.includes(parts[1][i])) { return false }
175. i = i + 1
176. }
177. return true
178. }
180. // 'YYYY-MM-DD' → a day number (only differences matter), null when it is no such date
181. static dayNumber = (v) => {
182. let t = textOr(v)
183. if (t == null || t.length < 10) { return null }
184. let y = toNumber(t.slice(0, 4))
185. let m = toNumber(t.slice(5, 7))
186. let d = toNumber(t.slice(8, 10))
187. if (y == null || m == null || d == null || m < 1 || m > 12) { return null }
188. let before = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334]
189. let py = m <= 2 ? y - 1 : y
190. let leaps = (py - py % 4) / 4 - (py - py % 100) / 100 + (py - py % 400) / 400
191. return y * 365 + leaps + before[m - 1] + d
192. }
193. static daysApart = (a, b) => {
194. let x = dayNumber(a)
195. let y = dayNumber(b)
196. if (x == null || y == null) { return null }
197. return x > y ? x - y : y - x
198. }
200. // TVmaze's text without its HTML (tracker#18: `tvmazeSummary`): tags dropped — a block tag (p, br, div, li) becomes a space —
201. // the common entities decoded, white space collapsed; null when nothing is left
202. static blockTags = ['p', 'br', 'div', 'li', 'ul', 'ol', 'h1', 'h2', 'h3', 'h4', 'blockquote']
203. static entities = [['&nbsp;', ' '], ['&quot;', '"'], ['&#39;', "'"], ['&apos;', "'"], ['&lt;', '<'], ['&gt;', '>'], ['&ndash;', '–'], ['&mdash;', '—'], ['&hellip;', '…'], ['&amp;', '&']]
204. static stripHtml = (v) => {
205. let t = textOr(v)
206. if (t == null) { return null }
207. let out = ''
208. let i = 0
209. while (i < t.length) {
210. if (t[i] == '<') {
211. let close = t.indexOf('>', i)
212. if (close < 0) { close = t.length }
213. let name = t.slice(i + 1, close).trim().toLowerCase()
214. if (name.startsWith('/')) { name = name.slice(1) }
215. let sp = name.indexOf(' ')
216. if (sp >= 0) { name = name.slice(0, sp) }
217. if (name.endsWith('/')) { name = name.slice(0, name.length - 1) }
218. if (blockTags.includes(name)) { out = out + ' ' }
219. i = close + 1
220. } else {
221. // a line break / tab (a control character) is a space too (strings have no escapes to name them)
222. out = out + (t.charCodeAt(i) < 32 ? ' ' : t[i])
223. i = i + 1
224. }
225. }
226. for (e of entities) { out = out.replaceAll(e[0], e[1]) }
227. let words = []
228. for (w of out.split(' ')) { if (w != '') { words.push(w) } }
229. return words.length > 0 ? words.join(' ') : null
230. }
232. // TVmaze's show WITH its episode list, one request (tracker#18: `?embed=episodes` brings the show's own summary too — before
233. // it was `/shows/<id>/episodes`): { list, summary (HTML stripped, or null) } or { failed }
234. static tvmazeEpisodes = (tvmzId) => {
235. let r = fetch(tvmazeBase + '/shows/' + tvmzId + '?embed=episodes', { headers = { 'accept' = 'application/json' 'user-agent' = 'tracker.worldapi.org (tmdb sync)' } timeoutMs = 20000 })
236. if (r == null || r.status == null || r.status == 0) { return { failed = 'TVmaze: no answer for episodes of ' + tvmzId } }
237. if (r.status != 200) { return { failed = 'TVmaze: HTTP ' + r.status + ' for episodes of ' + tvmzId } }
238. let j = r.json()
239. if (j == null || j._embedded == null || j._embedded.episodes == null || j._embedded.episodes.length == null) { return { failed = 'TVmaze: no episode list for ' + tvmzId } }
240. return { list = j._embedded.episodes summary = stripHtml(j.summary) }
241. }
243. // do we and TVmaze number a show the same way? Of the episodes both know (same S/E), at least 80 % must air within a day
244. // of each other OR carry the same title (a streaming show TVmaze dates all on its release day, TMDB week by week, still
245. // agrees by title). A show we have episodes of but TVmaze numbers none of the same (e.g. seasons by year) never agrees.
246. // Answers { known, compared, agree, ok }.
247. static sameTitle = (a, b) => { return !isPlaceholderTitle(a) && !isPlaceholderTitle(b) && a.trim().toLowerCase() == b.trim().toLowerCase() }
248. static numberingAgrees = (epByNumber, list) => {
249. let out = { known = 0 compared = 0 agree = 0 ok = true }
250. let localCount = epByNumber.keys().length
251. for (te of list) {
252. let e = epByNumber[te.season + 'x' + te.number]
253. if (e != null) {
254. out.known = out.known + 1
255. let apart = daysApart(e.release, te.airdate)
256. let titled = !isPlaceholderTitle(e.title) && !isPlaceholderTitle(te.name)
257. if (apart != null || titled) {
258. out.compared = out.compared + 1
259. if ((apart != null && apart <= 1) || sameTitle(e.title, te.name)) { out.agree = out.agree + 1 }
260. }
261. }
262. }
263. out.ok = !((localCount > 0 && out.known == 0) || (out.compared > 0 && out.agree * 5 < out.compared * 4))
264. return out
265. }
267. // Merge TVmaze's episodes of a series into what we have AFTER the TMDB step (gaps only, rules at the top).
268. // `seasonsByNumber` / `epByNumber` = the show's seasons by number and episodes by '<s>x<e>', as the TMDB step left them.
269. // Answers { tvmazeRequests, newSeasons, newEpisodes, filledEpisodes, skipped, errors, error, showSeasons }.
270. static mergeTvmaze = (title, showKey, tvmzId, seasonsIn, episodesIn, showSeasonsIn) => {
271. let seasonsByNumber = seasonsIn
272. let epByNumber = episodesIn
273. let out = { tvmazeRequests = 1 newSeasons = 0 newEpisodes = 0 filledEpisodes = 0 skipped = 0 errors = 0 error = '' showSeasons = showSeasonsIn summary = null }
274. let got = tvmazeEpisodes(tvmzId)
275. if (got.failed != null) { out.errors = 1 out.error = title + ': ' + got.failed return out }
276. out.summary = got.summary
277. // the numbered episodes TVmaze has in seasons we take (no specials; season 0 only when the show has one)
278. let list = []
279. for (te of got.list) {
280. if (numIdOr(te.season) != null && numIdOr(te.number) != null) { list.push(te) }
281. else if (te.season == 0 && numIdOr(te.number) != null && seasonsByNumber['0'] != null) { list.push(te) }
282. }
283. if (!numberingAgrees(epByNumber, list).ok) { out.skipped = 1 return out }
285. let added = {}
286. let addedFirstDate = {}
287. for (te of list) {
288. let key = te.season + 'x' + te.number
289. let e = epByNumber[key]
290. if (e == null) {
291. let seasonKey = seasonsByNumber['' + te.season] != null ? seasonsByNumber['' + te.season].id : null
292. if (seasonKey == null) {
293. if (added['' + te.season] == null) { added['' + te.season] = [] addedFirstDate['' + te.season] = textOr(te.airdate) seasonsByNumber['' + te.season] = { id = newId() isNew = true } }
294. seasonKey = seasonsByNumber['' + te.season].id
295. }
296. let fresh = { id = newId() episodeNumber = te.number seasonNumber = te.season
297. title = textOr(te.name) summary = '' release = textOr(te.airdate)
298. show = showKey season = seasonKey tmdbId = null tvmzId = te.id oldId = 'tvmaze-episode:' + te.id }
299. if (episodesTable.put(fresh) == null) {
300. out.errors = out.errors + 1
301. out.error = title + ': TVmaze episode ' + te.id + ' not stored: ' + episodesTable.lastError()
302. } else {
303. if (added['' + te.season] == null) { added['' + te.season] = [] }
304. let l = added['' + te.season]
305. l.push(fresh.id)
306. added['' + te.season] = l
307. epByNumber[key] = fresh
308. out.newEpisodes = out.newEpisodes + 1
309. }
310. } else {
311. let changed = false
312. if (isPlaceholderTitle(e.title) && !isPlaceholderTitle(te.name)) { e.title = te.name changed = true }
313. if (textOr(e.release) == null && textOr(te.airdate) != null) { e.release = te.airdate changed = true }
314. if (changed) {
315. if (episodesTable.update(e.id, e) == null) {
316. out.errors = out.errors + 1
317. out.error = title + ': episode ' + e.id + ' not filled from TVmaze: ' + episodesTable.lastError()
318. } else {
319. epByNumber[key] = e
320. out.filledEpisodes = out.filledEpisodes + 1
321. }
322. }
323. }
324. }
325. // the seasons that got episodes: an existing one is updated, a new one stored and linked to the show
326. let showSeasons = []
327. for (sid of showSeasonsIn) { showSeasons.push(sid) }
328. for (n of added.keys()) {
329. let ids = added[n]
330. let s = seasonsByNumber[n]
331. if (ids.length > 0 && s.isNew == true) {
332. let season = { id = s.id seasonNumber = toNumber(n) title = 'Season ' + n release = addedFirstDate[n] summary = ''
333. show = showKey episodes = ids oldId = 'tvmaze-season:' + tvmzId + ':' + n }
334. if (seasonsTable.put(season) == null) {
335. out.errors = out.errors + 1
336. out.error = title + ': TVmaze season ' + n + ' not stored: ' + seasonsTable.lastError()
337. } else {
338. showSeasons.push(season.id)
339. out.newSeasons = out.newSeasons + 1
340. }
341. } else if (ids.length > 0) {
342. let season = seasonsTable.fetch(s.id)
343. let eps = []
344. for (eid of season.episodes) { eps.push(eid) }
345. for (eid of ids) { eps.push(eid) }
346. season.episodes = eps
347. if (seasonsTable.update(season.id, season) == null) {
348. out.errors = out.errors + 1
349. out.error = title + ': season ' + season.id + ' not updated: ' + seasonsTable.lastError()
350. }
351. }
352. }
353. out.showSeasons = showSeasons
354. return out
355. }
357. // ---- posters ----------------------------------------------------------------------------------
358. // the extension of a TMDB poster_path ('/abc.jpg' → 'jpg'); only the ones the poster route knows
359. static posterExt = (posterPath) => {
360. let parts = posterPath.split('.')
361. let ext = parts[parts.length - 1].toLowerCase()
362. if (ext == 'jpg' || ext == 'jpeg' || ext == 'png' || ext == 'webp') { return ext }
363. return null
364. }
366. // downloads the w342 poster when the file is missing or TMDB has a new one; answers { requests, saved, failed }
367. // and sets show.image / show.tmdbPoster on the (caller's) record — the file is <oldId>.<ext>, the name
368. // shows.hl posterName() already builds, served by project.hl's /posters/:name route
369. static syncPoster = (show, posterPath) => {
370. let out = { requests = 0 saved = 0 failed = null image = show.image tmdbPoster = show.tmdbPoster }
371. if (textOr(posterPath) == null || show.oldId == null) { return out }
372. let ext = posterExt(posterPath)
373. if (ext == null) { return out }
374. let file = postersDir + '/' + show.oldId + '.' + ext
375. if (exists(file) && show.tmdbPoster == posterPath && show.image == ext) { return out }
376. out.requests = 1
377. let r = fetch(tmdbImageBase + '/w342' + posterPath, { headers = { 'user-agent' = 'tracker.worldapi.org (tmdb sync)' } timeoutMs = 20000 })
378. if (r == null || r.status != 200 || r.body == null || r.body.length == 0) {
379. out.failed = 'poster ' + posterPath + ': ' + (r == null ? 'no answer' : 'HTTP ' + r.status)
380. return out
381. }
382. mkDir(postersDir)
383. writeFile(file, toBytes(r.body), 420)
384. out.saved = 1
385. out.image = ext
386. out.tmdbPoster = posterPath
387. return out
388. }
390. // ---- one show -----------------------------------------------------------------------------------
391. static newId = () => { return randomBytes(8, 'hex') }
393. // TMDB's adult flag of a details/search answer: true / false, null when it has none (mission 054)
394. static adultOf = (j) => {
395. if (j == null) { return null }
396. if (j.adult == true) { return true }
397. if (j.adult == false) { return false }
398. return null
399. }
401. // which TMDB seasons to sync: every numbered one with episodes; 0 only when the show has a season 0 already
402. static wantedSeasonNumbers = (details, localByNumber) => {
403. let out = []
404. if (details.seasons == null) { return out }
405. for (s of details.seasons) {
406. let n = s.season_number
407. if (n != null && (n > 0 || localByNumber['' + n] != null) && (s.episode_count == null || s.episode_count > 0 || localByNumber['' + n] != null)) { out.push(n) }
408. }
409. return out
410. }
412. // the seasons in batches of 20 (TMDB's append_to_response limit)
413. static batchesOf = (list, size) => {
414. let out = []
415. let cur = []
416. for (x of list) {
417. cur.push(x)
418. if (cur.length == size) { out.push(cur) cur = [] }
419. }
420. if (cur.length > 0) { out.push(cur) }
421. return out
422. }
424. // fields of an episode/season from TMDB that differ from the stored record (null/empty never overwrites)
425. static changedText = (stored, fresh) => { return fresh != null && fresh != stored }
427. // a MOVIE: one request — its imdb id (if missing) and its poster; nothing else of the record is touched. `pre` = that
428. // request's answer when the caller already made it (details.hl firstStep, tracker#26), else null
429. static syncMovie = (show, res, pre) => {
430. let out = res
431. out.requests = 1
432. let details = pre != null ? pre : tmdbGet('/movie/' + show.tmdbId + '?append_to_response=external_ids,credits')
433. if (details.failed != null) { out.errors = 1 out.error = show.title + ': ' + details.failed return out }
434. if (pre == null) { out.details = details }
435. let ids = externalIdsFor(show, details.external_ids, false, false)
436. out.ids = ids.filled
437. let poster = syncPoster(show, details.poster_path)
438. out.requests = out.requests + poster.requests
439. out.posters = poster.saved
440. if (poster.failed != null) { out.errors = out.errors + 1 out.error = show.title + ': ' + poster.failed }
441. let m = show
442. m.imdbId = ids.imdbId
443. m.image = poster.image
444. m.tmdbPoster = poster.tmdbPoster
445. if (adultOf(details) != null) { m.adult = adultOf(details) }
446. m.tmdbSync = now()
447. if (showsTable.update(m.id, m) == null) { out.errors = out.errors + 1 out.error = show.title + ': movie not updated: ' + showsTable.lastError() }
448. return out
449. }
451. // Sync ONE show (by our id). Answers counts: { requests, tvmazeRequests, newSeasons, newEpisodes, updatedEpisodes,
452. // updatedSeasons, posters, ids, tvmazeEpisodes, tvmazeSeasons, tvmazeFilled, tvmazeSkipped, errors, error } + `details` (the
453. // details answer with its credits when this call asked for it, else null — tracker#28: the caller stores the credits). Never throws for a TMDB failure — it is counted and the show left as is.
454. static syncShow = (showId) => { return syncShowPart(showId, null, null) }
455. // the same with the details request (`/tv|movie/<id>?append_to_response=external_ids…`) already answered — `pre`, counted as
456. // this show's first request — so details.hl (tracker#26) asks TMDB once for details, ids AND the cast
457. static syncShowWith = (showId, pre) => { return syncShowPart(showId, pre, null) }
458. // ONE PART of a series' sync (tracker#26: a talk show with 4,000 episodes took 10 s in one step, blocking every request):
459. // `only` = { seasons (the TMDB season numbers of this part), finish (false: only those seasons — new ones linked to the show,
460. // nothing else; true: the ids, TVmaze, poster and the show record), tvmaze (false: no TVmaze lookup/merge — tracker#18's light
461. // step) }; null = everything at once. `pre` is required with `only` (its request is the caller's: a part counts only its own
462. // requests).
463. static emptyResult = () => { return { requests = 0 tvmazeRequests = 0 newSeasons = 0 newEpisodes = 0 updatedEpisodes = 0 updatedSeasons = 0 posters = 0 ids = 0 tvmazeEpisodes = 0 tvmazeSeasons = 0 tvmazeFilled = 0 tvmazeSkipped = 0 errors = 0 error = '' details = null } }
464. static syncShowPart = (showId, pre, only) => {
465. let res = emptyResult()
466. let show = showsTable.fetch(showId)
467. if (show == null) { res.errors = 1 res.error = 'no show ' + showId return res }
468. if (show.tmdbId == null) { res.errors = 1 res.error = show.title + ': no tmdbId' return res }
469. if (show.type == 'movie') { return syncMovie(show, res, pre) }
471. res.requests = only != null ? 0 : 1
472. let details = pre != null ? pre : tmdbGet('/tv/' + show.tmdbId + '?append_to_response=external_ids,aggregate_credits')
473. if (details.failed != null) { res.errors = 1 res.error = show.title + ': ' + details.failed return res }
474. if (pre == null) { res.details = details }
476. // what we have: seasons by number, episodes by tmdbId and by S/E number
477. // (tracker#18: a part reads only ITS seasons' episodes, unless it finishes with the TVmaze merge, which compares them all —
478. // Today, 15,716 episodes, read them all for a one-season change: 20 s and GBs of memory)
479. let tvmazeToo = only == null || only.tvmaze != false
480. let allEpisodes = only == null || (only.finish && tvmazeToo)
481. let seasonsByNumber = {}
482. let epByTmdb = {}
483. let epByNumber = {}
484. for (sid of show.seasons) {
485. let s = seasonsTable.fetch(sid)
486. if (s != null) {
487. seasonsByNumber['' + s.seasonNumber] = s
488. let epIds = allEpisodes || only.seasons.includes(s.seasonNumber) ? s.episodes : []
489. for (eid of epIds) {
490. let e = episodesTable.fetch(eid)
491. if (e != null) {
492. if (e.tmdbId != null) { epByTmdb['' + e.tmdbId] = e }
493. epByNumber[e.seasonNumber + 'x' + e.episodeNumber] = e
494. }
495. }
496. }
497. }
499. // plain locals for the record literals below: inside a literal, an entry named `show`/`season` would shadow
500. // the variable for every later entry (SPEC "A literal's entries are evaluated in order")
501. let showKey = show.id
502. let showTmdb = show.tmdbId
503. let showSeasons = []
504. for (sid of show.seasons) { showSeasons.push(sid) }
505. let showChanged = false
507. let wanted = wantedSeasonNumbers(details, seasonsByNumber)
508. if (only != null) {
509. let part = []
510. for (n of wanted) { if (only.seasons.includes(n)) { part.push(n) } }
511. wanted = part
512. }
513. for (batch of batchesOf(wanted, 20)) {
514. let names = []
515. for (n of batch) { names.push('season/' + n) }
516. res.requests = res.requests + 1
517. let withSeasons = tmdbGet('/tv/' + show.tmdbId + '?append_to_response=' + names.join(','))
518. if (withSeasons.failed != null) {
519. res.errors = res.errors + 1
520. res.error = show.title + ': ' + withSeasons.failed
521. } else {
522. for (n of batch) {
523. let ts = withSeasons['season/' + n]
524. if (ts != null && ts.episodes != null) {
525. let season = seasonsByNumber['' + n]
526. let seasonIsNew = season == null
527. let seasonChanged = false
528. if (seasonIsNew) {
529. season = { id = newId() seasonNumber = n title = textOr(ts.name) != null ? ts.name : 'Season ' + n
530. release = textOr(ts.air_date) summary = textOr(ts.overview) != null ? ts.overview : ''
531. show = showKey episodes = [] oldId = 'tmdb-season:' + showTmdb + ':' + n }
532. } else {
533. if (changedText(season.title, textOr(ts.name))) { season.title = ts.name seasonChanged = true }
534. if (changedText(season.summary, textOr(ts.overview))) { season.summary = ts.overview seasonChanged = true }
535. if (changedText(season.release, textOr(ts.air_date))) { season.release = ts.air_date seasonChanged = true }
536. }
537. let seasonKey = season.id
538. let seasonEpisodes = []
539. for (eid of season.episodes) { seasonEpisodes.push(eid) }
540. for (te of ts.episodes) {
541. if (te.id != null && te.episode_number != null) {
542. let e = epByTmdb['' + te.id]
543. if (e == null) {
544. let byNum = epByNumber[n + 'x' + te.episode_number]
545. if (byNum != null && byNum.tmdbId == null) { e = byNum }
546. }
547. if (e == null) {
548. let fresh = { id = newId() episodeNumber = te.episode_number seasonNumber = n
549. title = textOr(te.name) summary = textOr(te.overview) != null ? te.overview : '' release = textOr(te.air_date)
550. show = showKey season = seasonKey tmdbId = te.id oldId = 'tmdb-episode:' + te.id }
551. let putId = episodesTable.put(fresh)
552. if (putId == null) {
553. res.errors = res.errors + 1
554. res.error = show.title + ': episode ' + te.id + ' not stored: ' + episodesTable.lastError()
555. } else {
556. seasonEpisodes.push(fresh.id)
557. epByTmdb['' + te.id] = fresh
558. epByNumber[n + 'x' + te.episode_number] = fresh
559. res.newEpisodes = res.newEpisodes + 1
560. seasonChanged = true
561. }
562. } else {
563. let changed = false
564. if (e.tmdbId == null) { e.tmdbId = te.id changed = true }
565. // #15: TMDB's "Episode 4" never replaces a real title (one TVmaze filled, or the migrated one)
566. if (changedText(e.title, textOr(te.name)) && !(isPlaceholderTitle(te.name) && !isPlaceholderTitle(e.title))) { e.title = te.name changed = true }
567. if (changedText(e.summary, textOr(te.overview))) { e.summary = te.overview changed = true }
568. if (changedText(e.release, textOr(te.air_date))) { e.release = te.air_date changed = true }
569. if (changed) {
570. if (episodesTable.update(e.id, e) == null) {
571. res.errors = res.errors + 1
572. res.error = show.title + ': episode ' + e.id + ' not updated: ' + episodesTable.lastError()
573. } else {
574. epByTmdb['' + e.tmdbId] = e
575. epByNumber[e.seasonNumber + 'x' + e.episodeNumber] = e
576. res.updatedEpisodes = res.updatedEpisodes + 1
577. }
578. }
579. }
580. }
581. }
582. season.episodes = seasonEpisodes
583. if (seasonIsNew) {
584. if (seasonsTable.put(season) == null) {
585. res.errors = res.errors + 1
586. res.error = show.title + ': season ' + n + ' not stored: ' + seasonsTable.lastError()
587. } else {
588. seasonsByNumber['' + n] = season
589. showSeasons.push(season.id)
590. showChanged = true
591. res.newSeasons = res.newSeasons + 1
592. }
593. } else if (seasonChanged) {
594. if (seasonsTable.update(season.id, season) == null) {
595. res.errors = res.errors + 1
596. res.error = show.title + ': season ' + season.id + ' not updated: ' + seasonsTable.lastError()
597. } else {
598. res.updatedSeasons = res.updatedSeasons + 1
599. }
600. }
601. }
602. }
603. }
604. }
606. // a part that is not the last: only the new seasons are linked to the show (the next part reads them)
607. if (only != null && !only.finish) {
608. if (showChanged) {
609. show.seasons = showSeasons
610. if (showsTable.update(show.id, show) == null) { res.errors = res.errors + 1 res.error = show.title + ': show not updated: ' + showsTable.lastError() }
611. }
612. return res
613. }
615. // the external ids (tracker.worldapi.org#12): missing ones from TMDB's external_ids, a missing TVmaze id from TVmaze
616. let ids = externalIdsFor(show, details.external_ids, true, tvmazeToo)
617. res.ids = ids.filled
618. res.tvmazeRequests = ids.tvmazeRequests
619. if (ids.failed != null) { res.errors = res.errors + 1 res.error = show.title + ': ' + ids.failed }
621. // tracker.worldapi.org#15: what TVmaze has and TMDB not yet (new episodes/seasons, empty titles and air dates)
622. let tvmazeSummary = null
623. if (numIdOr(ids.tvmzId) != null && tvmazeToo) {
624. let tvm = mergeTvmaze(show.title, showKey, ids.tvmzId, seasonsByNumber, epByNumber, showSeasons)
625. res.tvmazeRequests = res.tvmazeRequests + tvm.tvmazeRequests
626. res.tvmazeEpisodes = tvm.newEpisodes
627. res.tvmazeSeasons = tvm.newSeasons
628. res.tvmazeFilled = tvm.filledEpisodes
629. res.tvmazeSkipped = tvm.skipped
630. if (tvm.errors > 0) { res.errors = res.errors + tvm.errors res.error = tvm.error }
631. showSeasons = tvm.showSeasons
632. tvmazeSummary = tvm.summary
633. }
635. // the show itself: status, counts, TMDB's overview, the poster, when it was synced
636. let poster = syncPoster(show, details.poster_path)
637. res.requests = res.requests + poster.requests
638. res.posters = poster.saved
639. if (poster.failed != null) { res.errors = res.errors + 1 res.error = show.title + ': ' + poster.failed }
640. show.seasons = showSeasons
641. if (textOr(details.status) != null) { show.status = details.status }
642. if (details.number_of_seasons != null) { show.seasonsCount = details.number_of_seasons }
643. if (details.number_of_episodes != null) { show.episodesCount = details.number_of_episodes }
644. // tracker#18: TMDB's text → tmdbSummary, TVmaze's → tvmazeSummary; `summary` is the creator's own text, never written here
645. if (textOr(details.overview) != null) { show.tmdbSummary = details.overview }
646. if (tvmazeSummary != null) { show.tvmazeSummary = tvmazeSummary }
647. show.image = poster.image
648. show.tmdbPoster = poster.tmdbPoster
649. show.imdbId = ids.imdbId
650. show.tvdbId = ids.tvdbId
651. show.tvmzId = ids.tvmzId
652. if (adultOf(details) != null) { show.adult = adultOf(details) }
653. show.tmdbSync = now()
654. if (showsTable.update(show.id, show) == null) { res.errors = res.errors + 1 res.error = show.title + ': show not updated: ' + showsTable.lastError() }
655. return res
656. }
658. // ---- the LIGHT step of the daily delta run (tracker#18) ---------------------------------------------------------------
659. // A changed title NOBODY follows (deltasync.hl): its details (+ ids + credits: the record, applySynced) and only the seasons
660. // that can have changed — the ones we don't have, the ones where TMDB counts MORE episodes than we have (fewer: TVmaze's
661. // extras, nothing to fetch), and the newest one (new or renamed episodes land there). No TVmaze (its merge only matters for the followed shows' lists; their full step still does
662. // it). Real data (2026-10-01): Today (67 seasons / 15,716 episodes) and EastEnders (43 / 7,349) change every day; their full
663. // sync blocked the server 20.8 s each and grew the process by ~5 GB each.
664. static changedSeasonNumbers = (details, show) => {
665. let ours = {}
666. for (sid of show.seasons) {
667. let s = seasonsTable.fetch(sid)
668. if (s != null) { ours['' + s.seasonNumber] = s.episodes.length }
669. }
670. let latest = -1
671. for (x of (details.seasons != null ? details.seasons : [])) {
672. if (x != null && x.season_number != null && x.season_number > latest && (x.episode_count == null || x.episode_count > 0)) { latest = x.season_number }
673. }
674. let out = []
675. for (x of (details.seasons != null ? details.seasons : [])) {
676. if (x != null && x.season_number != null) {
677. let n = x.season_number
678. if (n == latest || ours['' + n] == null || (x.episode_count != null && x.episode_count > ours['' + n])) { out.push(n) }
679. }
680. }
681. return out
682. }
683. static syncShowDelta = (showId) => {
684. let show = showsTable.fetch(showId)
685. if (show == null || show.tmdbId == null || show.type == 'movie') { return syncShow(showId) }
686. let details = tmdbGet('/tv/' + show.tmdbId + '?append_to_response=external_ids,aggregate_credits')
687. if (details.failed != null) {
688. let res = emptyResult()
689. res.requests = 1
690. res.errors = 1
691. res.error = show.title + ': ' + details.failed
692. return res
693. }
694. let r = syncShowPart(showId, details, { seasons = changedSeasonNumbers(details, show) finish = true tvmaze = false })
695. r.requests = r.requests + 1
696. r.details = details
697. return r
698. }
700. // ---- the adult backfill (mission 054) ------------------------------------------------------------
701. // a title still to ask: its adult flag unknown, it has a tmdbId and TMDB never answered "no such title" for it
702. static needsAdultFlag = (show) => { return show.adult != true && show.adult != false && show.adultCheck == null && show.tmdbId != null }
704. // the ids of every title the backfill still has to ask, in table order (read once when the backfill starts — so after a
705. // restart it goes on with what is left)
706. static adultBackfillQueue = () => {
707. let out = []
708. for (s of showsTable.find(null, null)) { if (needsAdultFlag(s)) { out.push(s.id) } }
709. return out
710. }
712. // ONE title: one TMDB details request (adult, poster_path, external ids) + its poster when the file is missing. Answers
713. // { requests (TMDB API requests: what the pause counts), posters, adult (true / false / null), ids, errors, error, retry
714. // (a passing failure: no answer, 429, 5xx — ask again later) }. A 404 marks the title `adultCheck` (never asked again).
715. static backfillTitle = (showId) => {
716. let out = { requests = 0 posters = 0 adult = null ids = 0 errors = 0 error = '' retry = false }
717. let show = showsTable.fetch(showId)
718. if (show == null || !needsAdultFlag(show)) { return out }
719. let movie = show.type == 'movie'
720. out.requests = 1
721. let details = tmdbGet((movie ? '/movie/' : '/tv/') + show.tmdbId + '?append_to_response=external_ids')
722. if (details.failed != null) {
723. out.errors = 1
724. out.error = show.title + ': ' + details.failed
725. if (details.status == 404) {
726. show.adultCheck = 'TMDB 404'
727. showsTable.update(show.id, show)
728. } else { out.retry = true }
729. return out
730. }
731. let ids = externalIdsFor(show, details.external_ids, !movie, false)
732. out.ids = ids.filled
733. out.adult = adultOf(details)
734. // an ADULT title's poster is never shown publicly → not downloaded (mission 056: ~170 MB of the live data); its flag and
735. // ids are stored as for any other title
736. let poster = { saved = 0 failed = null image = show.image tmdbPoster = show.tmdbPoster }
737. if (out.adult != true) { poster = syncPoster(show, details.poster_path) }
738. out.posters = poster.saved
739. if (poster.failed != null) { out.errors = out.errors + 1 out.error = show.title + ': ' + poster.failed }
740. if (out.adult == null) { show.adultCheck = 'TMDB gave no adult flag' } else { show.adult = out.adult }
741. show.imdbId = ids.imdbId
742. show.tvdbId = ids.tvdbId
743. show.image = poster.image
744. show.tmdbPoster = poster.tmdbPoster
745. if (showsTable.update(show.id, show) == null) { out.errors = out.errors + 1 out.error = show.title + ': not updated: ' + showsTable.lastError() }
746. return out
747. }
749. // flush the three tables' index/meta state to disk (after a run, and every few shows)
750. static persistSync = () => {
751. showsTable.persist()
752. seasonsTable.persist()
753. episodesTable.persist()
754. return true
755. }
757. // totals of a run: the per-show counts added up
758. static emptyTotals = () => { return { shows = 0 requests = 0 tvmazeRequests = 0 newSeasons = 0 newEpisodes = 0 updatedEpisodes = 0 updatedSeasons = 0 posters = 0 ids = 0 tvmazeEpisodes = 0 tvmazeSeasons = 0 tvmazeFilled = 0 tvmazeSkipped = 0 errors = 0 } }
759. static addTotals = (t, r) => {
760. let o = t
761. o.shows = o.shows + 1
762. o.requests = o.requests + r.requests
763. o.tvmazeRequests = o.tvmazeRequests + r.tvmazeRequests
764. o.ids = o.ids + r.ids
765. o.newSeasons = o.newSeasons + r.newSeasons
766. o.newEpisodes = o.newEpisodes + r.newEpisodes
767. o.updatedEpisodes = o.updatedEpisodes + r.updatedEpisodes
768. o.updatedSeasons = o.updatedSeasons + r.updatedSeasons
769. o.posters = o.posters + r.posters
770. o.tvmazeEpisodes = o.tvmazeEpisodes + r.tvmazeEpisodes
771. o.tvmazeSeasons = o.tvmazeSeasons + r.tvmazeSeasons
772. o.tvmazeFilled = o.tvmazeFilled + r.tvmazeFilled
773. o.tvmazeSkipped = o.tvmazeSkipped + r.tvmazeSkipped
774. o.errors = o.errors + r.errors
775. return o
776. }
777. static totalsLine = (t) => {
778. return 'shows=' + t.shows + ' newSeasons=' + t.newSeasons + ' newEpisodes=' + t.newEpisodes + ' updatedEpisodes=' + t.updatedEpisodes
779. + ' updatedSeasons=' + t.updatedSeasons + ' posters=' + t.posters + ' ids=' + t.ids + ' requests=' + t.requests + ' tvmazeRequests=' + t.tvmazeRequests + ' errors=' + t.errors
780. + ' tvmazeEpisodes=' + t.tvmazeEpisodes + ' tvmazeSeasons=' + t.tvmazeSeasons + ' tvmazeFilled=' + t.tvmazeFilled + ' tvmazeSkipped=' + t.tvmazeSkipped
781. }