tracker

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1. // components/show.hl — `/shows/:slug` (tracker.worldapi.org#4): a show's own page. Creator's words:
2. // "the poster on the left, right of it the title of the show, the genre pills, below the plot summary,
3. // below that the artists just as normal links, separated with comma color red, genres are blue" (the
4. // header) — "then all seasons in reverse order, latest on top, below them collapsable their episodes,
5. // episodes first the round check icon, if the episode was watched by the user looking its solid, if
6. // not its regular, then the episode number, then the title. the last season is not collapsed. click on
7. // the check adds a watch. the season also has a check, if the season is checked or unchecked all its
8. // episodes get checked or unchecked. artists link to /person/<artist-slug> the genre to /genre/<genre-slug>."
9. //
10. // THE ROWS ARE ONE FLAT LIST, not a nested for-loop over seasons > episodes: the vendored build may
11. // still lack the fix for hybriel#86 (a nested for over a reassigned outer list keeps stale inner
12. // cells) — a single-level `for (row of rows)` with a `kind` field, reassigned whole on every click,
13. // is the same proven-safe shape components/main.hl's own header and ident's inbox.hl already use.
14. // `rows` is rebuilt from scratch (seasons/episodes refetched by id, watch rows refetched) on every
15. // toggle — cheap: a show has at most a few dozen episodes per season.
16. //
17. // Mission 047 (the creator, 2026-10-01): a caret at the season header's right edge (down = open, right = collapsed); episode
18. // rows not indented; on a phone the title first, then the poster at full width, then genres/plot/cast; a Follow toggle
19. // next to the title. SIGNED OUT the checks and Follow are visible too: a click opens the "sign in" modal (modal.hl, copied
20. // from components.hybriel) and writes nothing.
21. //
22. // tracker.worldapi.org#17 (mission 057): the caret points DOWN while a season is closed and UP while it is open. Opening a
23. // season shows SKELETON rows at once (min(episodes, 8), a CSS shimmer, styles.hl) and then its episodes from the face
24. // `showSeasonEpisodes`, which takes NO session: a face with `session` makes hl:web re-mount the whole page on the server and
25. // ship every session-derived member back as a `sync` (WebFramework.hl `inbound`) — that, not the episodes, was most of the
26. // old 250–450 ms (real data). The watched state comes from `watchedEpisodes` (this show's watched episodes per season, rendered
27. // with the page and re-synced after every watch face). Closing is client-only (no request). An ADULT show (only its
28. // followers see it) keeps the session face `showRows`: the public face refuses adult seasons.
29. //
30. // tracker.worldapi.org#12: link icons under the title — the show on TMDB, IMDb, TheTVDB, TVmaze (a movie: TMDB + IMDb),
31. // only for the ids it has (shows.hl externalLinksOf), each in a new tab.
32. //
33. // mission 058: #22 every episode row shows its air date (`release`, 'YYYY-MM-DD' like /my/unwatched; none → empty). #23 a
34. // season's check is DERIVED: solid exactly when every one of its episodes is watched (a season without episodes: its own
35. // season watch) — unchecking one episode turns the season off with the face's answer, checking it again turns it on; the
36. // season click watches all when not all are watched, else unwatches all. #24 a MOVIE's page has its own watched check
37. // (watch `targetType = 'movie'`, target = the title's id; face `showToggleMovie`), signed out → the sign-in modal.
38. parent './main.hl'
39. import Modal from './modal.hl'
40. import { appTitle } from '../project.hl'
41. import { userIdOfSession, loginHref } from '../users.hl'
42. import { isFollowing, setFollowed } from '../follows.hl'
43. import { showBySlug, showById, genreById, personById, seasonsOfShow, episodesOfSeason, seasonById, posterName, externalLinksOf } from '../shows.hl'
44. import { watchesOfUser, isWatched, watchedSet, setWatched, setSeasonWatched, watchClassOf } from '../watches.hl'
46. // ---- pure helpers ----------------------------------------------------------------------------
47. // `static`, like calendar.hl's `soonOf` — a PLAIN instance member function that calls an
48. // hl:mpackdb-backed import (seasonsOfShow, episodesOfSeason, watchesOfUser, …) comes back null
49. // when called from an `on server` face (confirmed by running the gate: "'buildRows' is not
50. // callable — it holds null" at the face's call site, even though the SAME call works fine as a
51. // member's own initializer at the top of this file). `static` is the proven-safe shape (calendar's
52. // `soonOf`, called from `calLoad`/`calSettingsLoad`, an mpackdb-backed helper exactly like this one).
53. static initialCollapsed = (seasons) => {
54. let m = {}
55. let i = 0
56. while (i < seasons.length) {
57. if (i > 0) { m[seasons[i].id] = true }
58. i = i + 1
59. }
60. return m
61. }
62. static genreRowsOf = (show) => {
63. let out = []
64. for (gid of show.genres) {
65. let g = genreById(gid)
66. if (g != null) { out.push({ id = g.id name = g.name href = '/genres/' + g.urlSegment }) }
67. }
68. return out
69. }
70. static castRowsOf = (show) => {
71. let out = []
72. for (c of show.cast) {
73. let p = personById(c.person)
74. if (p != null) { out.push({ name = c.actor href = '/person/' + p.urlSegment }) }
75. }
76. return out
77. }
78. // a View attribute must be a literal, a member or a field path — never an inline expression — so
79. // every ternary (watched -> icon class, collapsed -> row class) is resolved HERE, once, into a
80. // plain field the View just reads (row.watchClass, row.rowClass); `watchClassOf` itself lives in
81. // watches.hl (shared with /unwatched and /schedule, "reuse, don't copy")
82. // #22: an episode's air date as the lists show it ('YYYY-MM-DD'), '' when it has none
83. static airDateOf = (e) => { return e.release != null && hlTypeName(e.release) == 'String' ? e.release : '' }
84. // #23: a season is watched when ALL its episodes are (by the ids it lists); one without episodes keeps its own season watch
85. static seasonAllWatched = (s, watched) => {
86. if (s.episodes.length == 0) { return watched['season:' + s.id] == true }
87. for (eid of s.episodes) { if (watched['episode:' + eid] != true) { return false } }
88. return true
89. }
90. static buildRows = (show, uid, collapsed) => {
91. let watched = watchedSet(uid != null ? watchesOfUser(uid) : [])
92. let out = []
93. for (s of seasonsOfShow(show)) {
94. let isCollapsed = collapsed[s.id] == true
95. let label = s.title != null && s.title != '' ? s.title : 'Season ' + s.seasonNumber
96. let seasonWatched = seasonAllWatched(s, watched)
97. out.push({ kind = 'season' isSeason = true isEpisode = false isSkeleton = false id = s.id skeletonCount = s.episodes.length < 8 ? s.episodes.length : 8 label = label episodeCountText = s.episodes.length == 1 ? '1 episode' : s.episodes.length + ' episodes' watched = seasonWatched watchClass = watchClassOf(seasonWatched) collapsed = isCollapsed rowClass = isCollapsed ? 'collapsed' : 'expanded' })
98. if (!isCollapsed) {
99. for (e of episodesOfSeason(s)) {
100. let epWatched = watched['episode:' + e.id] == true
101. out.push({ kind = 'episode' isSeason = false isEpisode = true isSkeleton = false id = e.id seasonId = s.id episodeNumber = e.episodeNumber title = e.title != null ? e.title : '' airDate = airDateOf(e) watched = epWatched watchClass = watchClassOf(epWatched) })
102. }
103. }
104. }
105. return out
106. }
108. // what the client marks the rows of a season it opens with (tracker#17) — only this show's, never the user's whole watch
109. // list (every member is shipped to the browser). Per season with a watched episode: `{ all, except }` — `all` = most of
110. // it is watched, then `except` holds the UNwatched ids, else the watched ones (a fully watched 142-episode season is
111. // `{ all = true except = {} }`, not 142 ids). No entry = nothing watched.
112. static watchedEpisodesOf = (show, uid) => {
113. let m = {}
114. if (uid == null) { return m }
115. let watched = watchedSet(watchesOfUser(uid))
116. for (s of seasonsOfShow(show)) {
117. let yes = {}
118. let no = {}
119. let n = 0
120. for (eid of s.episodes) {
121. if (watched['episode:' + eid] == true) { yes[eid] = true n = n + 1 } else { no[eid] = true }
122. }
123. if (n > 0) { m[s.id] = n * 2 > s.episodes.length ? { all = true except = no } : { all = false except = yes } }
124. }
125. return m
126. }
127. // is this episode watched, by that per-season shape (client-side, pure)
128. static watchedIn = (entry, episodeId) => {
129. if (entry == null) { return false }
130. let listed = entry.except[episodeId] == true
131. return entry.all ? !listed : listed
132. }
134. // ---- the rows as the CLIENT changes them (tracker#17) — pure: no import is reached, so they run in the browser ----------
135. // (`watchClassOf` is an import of the mpackdb-backed watches.hl, so `filledRows` writes its two classes itself)
136. static seasonRowAs = (row, isCollapsed) => {
137. return { kind = 'season' isSeason = true isEpisode = false isSkeleton = false id = row.id skeletonCount = row.skeletonCount label = row.label episodeCountText = row.episodeCountText watched = row.watched watchClass = row.watchClass collapsed = isCollapsed rowClass = isCollapsed ? 'collapsed' : 'expanded' }
138. }
139. // the season opened: its caret up at once, `skeletonCount` placeholder rows under it
140. static openingRows = (rows, seasonId) => {
141. let out = []
142. for (row of rows) {
143. if (row.isSeason && row.id == seasonId) {
144. out.push(seasonRowAs(row, false))
145. let i = 0
146. while (i < row.skeletonCount) {
147. out.push({ kind = 'skeleton' isSeason = false isEpisode = false isSkeleton = true id = seasonId + '-skeleton-' + i seasonId = seasonId })
148. i = i + 1
149. }
150. } else { out.push(row) }
151. }
152. return out
153. }
154. // the season closed: its episode (and skeleton) rows gone, caret down
155. static closedRows = (rows, seasonId) => {
156. let out = []
157. for (row of rows) {
158. if (row.isSeason && row.id == seasonId) { out.push(seasonRowAs(row, true)) }
159. else if (!row.isSeason && row.seasonId == seasonId) { }
160. else { out.push(row) }
161. }
162. return out
163. }
164. // the episodes arrived: they replace the season's skeleton rows. No skeleton of it left (closed meanwhile, or a watch face
165. // already rebuilt every row) → the rows stay as they are (no double rows)
166. static filledRows = (rows, seasonId, episodes, watched) => {
167. let out = []
168. let done = false
169. for (row of rows) {
170. if (row.isSkeleton && row.seasonId == seasonId) {
171. if (!done) {
172. for (e of episodes) {
173. let w = watchedIn(watched[seasonId], e.id)
174. out.push({ kind = 'episode' isSeason = false isEpisode = true isSkeleton = false id = e.id seasonId = seasonId episodeNumber = e.episodeNumber title = e.title airDate = e.airDate watched = w watchClass = w ? 'checkicon solid' : 'checkicon regular' })
175. }
176. done = true
177. }
178. } else { out.push(row) }
179. }
180. return out
181. }
183. // a LOCAL static like buildRows (an imported mpackdb helper called straight from a member's initializer came back false
184. // after a client-side navigation to the page — the gate's follow check)
185. static followingOf = (show, uid) => { return uid != null && isFollowing(uid, show.id) }
186. // #24: has this user watched this movie (a watch `movie:<title id>`)?
187. static movieWatchedOf = (show, uid) => { return uid != null && isWatched(watchesOfUser(uid), 'movie', show.id) }
188. // mission 056: an ADULT title's page (TMDB's flag `adult == true`, mission 054) is "Not found" for everyone who does not
189. // follow it (signed out too); a follower sees it as before. Unknown (`null`) is not hidden here — only in the lists.
190. // With hybriel ≥ 73267707 (#121/#122) `showRow`/`found` are server sites re-derived after every session face with the page's
191. // slug, so an Unfollow on the page hides it at once (the gate proves it; the old build left the page up until a reload).
192. // Mission 054's try (`found = … && !adultHiddenFor(showRow, me)`, `collapsed`/`rows` from `found`) broke the checks.
193. static adultHiddenFor = (show, uid) => { return show.adult == true && !followingOf(show, uid) }
194. // the page's show — null when there is none OR it is hidden for this user: every member is shipped to the browser, so the
195. // row of a hidden title must never be one
196. static visibleShow = (slug, uid) => {
197. let s = showBySlug(slug)
198. return s != null && adultHiddenFor(s, uid) ? null : s
199. }
200. // the initial open/closed seasons from the SLUG alone (not from `showRow`, which reads the session — see `collapsed`)
201. static initialCollapsedOf = (slug) => {
202. let s = showBySlug(slug)
203. return s != null ? initialCollapsed(seasonsOfShow(s)) : {}
204. }
206. // ---- reactive members -----------------------------------------------------------------------
207. slug = null
208. session = null
209. userId = userIdOfSession(session)
210. signedIn = userId != null
211. // SESSION SYNC (mission 047; since hybriel #121/#122, mission 056): a face taking `session` answers with a `sync` of every
212. // member derived from session that reaches an import (here `showRow`, `found`, `following`, `rows`, …), re-derived on the
213. // server with the page's route params but the MOUNT's other state — so client state (`collapsed`) must never derive from
214. // them. `me` stays the plain copy mission 047 introduced.
215. me = userId
217. showRow = visibleShow(slug, me)
218. found = showRow != null
219. notFound = showRow == null
221. // the Follow toggle: "Follow" = the inverted button (accent border), "Following" = the filled one
222. following = found ? followingOf(showRow, me) : false
223. followClass = following ? 'follow' : 'follow inverted'
224. followText = following ? 'Following' : 'Follow'
225. signInHref = loginHref
227. // #24: a movie's watched check (same icon/classes as the episodes); the classes written out, not `watchClassOf` (an import of
228. // the mpackdb-backed watches.hl cannot run in the browser when the member is re-derived there)
229. isMovie = found && showRow.type == 'movie'
230. movieWatched = isMovie ? movieWatchedOf(showRow, me) : false
231. movieWatchClass = movieWatched ? 'checkicon solid' : 'checkicon regular'
232. movieWatchText = movieWatched ? 'Watched' : 'Not watched'
233. signInText = isMovie ? 'You need to sign in to follow movies and mark them watched.' : 'You need to sign in to follow shows and mark episodes.'
235. title = found ? showRow.title : ''
236. summary = found && showRow.summary != null ? showRow.summary : ''
237. poster = found ? posterName(showRow) : null
238. hasPoster = poster != null
239. posterUrl = hasPoster ? '/posters/' + poster : ''
240. // mission 060 (tracker.worldapi.org#27): the short id under the poster (none yet while the backfill has not reached it)
241. shortId = found && showRow.shortId != null ? '' + showRow.shortId : ''
242. hasShortId = shortId != ''
244. genreRows = found ? genreRowsOf(showRow) : []
245. hasGenres = genreRows.length > 0
246. castRows = found ? castRowsOf(showRow) : []
247. hasCast = castRows.length > 0
248. linkRows = found ? externalLinksOf(showRow) : []
249. hasLinks = linkRows.length > 0
251. // NOT from `showRow`/`found`: they read the session (via `me`), so a member derived from them is re-derived on the server
252. // after every session face with the MOUNT's state — `collapsed` (client state) would snap back to the initial seasons (mission
253. // 056: the 2nd episode click in a re-opened season did nothing). The season ids of a hidden page are no secret.
254. collapsed = initialCollapsedOf(slug)
255. rows = found ? buildRows(showRow, me, collapsed) : []
256. hasRows = rows.length > 0
257. watchedEpisodes = found ? watchedEpisodesOf(showRow, me) : {}
258. // an adult page (followers only) opens its seasons through the session face `showRows`
259. adultShow = found && showRow.adult == true
261. __title = found ? title + ' — ' + appTitle : appTitle
263. View {
264. showPage {
265. if (notFound) {
266. article { class = "main"
267. h1 { "Not found" }
268. p { "This show doesn't exist." }
269. }
270. }
271. if (found) {
272. showHeader {
273. showPoster {
274. if (hasPoster) { img { src = posterUrl alt = title } }
275. if (hasShortId) { shortIdLabel { id = "shortid" title = "Short id" shortId } }
276. }
277. showMeta {
278. showTitle {
279. h1 { title }
280. button { id = "follow" type = "button" class = followClass followText on click(e) { emit toggleFollow(e) } }
281. }
282. if (isMovie) {
283. movieWatch {
284. button { id = "moviewatch" type = "button" class = movieWatchClass "aria-label" = "mark movie watched"
285. svg { viewBox = "0 0 24 24" width = "22" height = "22" "aria-hidden" = "true"
286. circle { cx = "12" cy = "12" r = "10" }
287. path { d = "M7 12.5 L10.5 16 L17 8.5" }
288. }
289. on click(e) { emit toggleMovie(e) }
290. }
291. movieWatchLabel { movieWatchText }
292. }
293. }
294. if (hasLinks) {
295. showLinks {
296. for (l of linkRows) { a { class = "extlink" href = l.href target = "_blank" rel = "noopener" title = l.title "aria-label" = l.title "data-site" = l.site l.label } }
297. }
298. }
299. if (hasGenres) {
300. showGenres {
301. for (g of genreRows) { a { class = "genre-pill" href = g.href g.name } }
302. }
303. }
304. showSummary { summary }
305. if (hasCast) {
306. showCast {
307. for (c of castRows) { a { class = "artist-link" href = c.href c.name } }
308. }
309. }
310. }
311. }
312. if (hasRows) {
313. showSeasons {
314. for (row of rows) {
315. if (row.isSeason) {
316. seasonRow { class = row.rowClass
317. button { type = "button" class = row.watchClass value = row.id "aria-label" = "mark season watched"
318. svg { viewBox = "0 0 24 24" width = "22" height = "22" "aria-hidden" = "true"
319. circle { cx = "12" cy = "12" r = "10" }
320. path { d = "M7 12.5 L10.5 16 L17 8.5" }
321. }
322. on click(e) { emit toggleSeason(row.id) }
323. }
324. button { type = "button" class = "season-toggle" value = row.id
325. seasonLabel { row.label }
326. seasonCount { row.episodeCountText }
327. seasonCaret { "aria-hidden" = "true"
328. svg { viewBox = "0 0 24 24" width = "20" height = "20"
329. path { d = "M6 9 L12 15 L18 9" }
330. }
331. }
332. on click(e) { emit toggleCollapse(row.id) }
333. }
334. }
335. }
336. if (row.isEpisode) {
337. episodeRow {
338. button { type = "button" class = row.watchClass value = row.id "aria-label" = "mark episode watched"
339. svg { viewBox = "0 0 24 24" width = "22" height = "22" "aria-hidden" = "true"
340. circle { cx = "12" cy = "12" r = "10" }
341. path { d = "M7 12.5 L10.5 16 L17 8.5" }
342. }
343. on click(e) { emit toggleEpisode(row.id) }
344. }
345. episodeNumber { row.episodeNumber }
346. episodeTitle { row.title }
347. episodeDate { row.airDate }
348. }
349. }
350. if (row.isSkeleton) {
351. skeletonRow { "aria-hidden" = "true"
352. skeletonCheck { }
353. skeletonNumber { }
354. skeletonTitle { }
355. }
356. }
357. }
358. }
359. }
360. Modal { id = "signin" title = "Sign in"
361. p { signInText }
362. footer {
363. button { type = "button" value = "close" "Close" }
364. a { id = "signin-link" class = "button" href = signInHref "Sign in with ident" }
365. }
366. }
367. }
368. }
369. }
371. // Every rebuild of `rows` happens SERVER-SIDE, never by calling `buildRows` from a client handler:
372. // a member function whose body reaches an hl:mpackdb-backed import (seasonsOfShow, episodesOfSeason,
373. // watchesOfUser, …) compiles to nothing on the client (no case ever assigns it — a genuine Hybriel
374. // gap, filed under `issues`) even though the client bundle still calls it, so `this.buildRows(...)`
375. // throws "not a function" in the browser. The client here only ever ASSIGNS the `rows` the server
376. // already built (`rows = r.rows`) — never calls a tainted local helper itself. `slug` goes along so
377. // the face can refetch the show without depending on implicit access to a sibling member.
378. //
379. // tracker#17: opening shows the skeleton rows BEFORE the request; the answer replaces them unless the season was closed
380. // meanwhile (then nothing). An error closes the season again. Closing never asks the server.
381. on toggleCollapse(seasonId) {
382. let m = collapsed
383. if (collapsed[seasonId] != true) {
384. m[seasonId] = true
385. collapsed = m
386. rows = closedRows(rows, seasonId)
387. return null
388. }
389. m[seasonId] = false
390. collapsed = m
391. rows = openingRows(rows, seasonId)
392. if (adultShow) {
393. let a = emit server showRows(slug, collapsed)
394. if (collapsed[seasonId] == true) { return null }
395. if (a == null || a.error != null) { m[seasonId] = true collapsed = m rows = closedRows(rows, seasonId) return null }
396. rows = a.rows
397. return null
398. }
399. let r = emit server showSeasonEpisodes('' + seasonId)
400. if (collapsed[seasonId] == true) { return null }
401. if (r == null || r.error != null) { m[seasonId] = true collapsed = m rows = closedRows(rows, seasonId) return null }
402. rows = filledRows(rows, seasonId, r.episodes, watchedEpisodes)
403. }
405. // signed out: the modal, nothing is sent
406. on toggleEpisode(episodeId) {
407. if (!signedIn) { document.getElementById('signin').showModal() return null }
408. let r = emit server showToggleEpisode(slug, '' + episodeId, collapsed)
409. if (r == null || r.error != null) { return null }
410. rows = r.rows
411. }
413. on toggleSeason(seasonId) {
414. if (!signedIn) { document.getElementById('signin').showModal() return null }
415. let r = emit server showToggleSeason(slug, '' + seasonId, collapsed)
416. if (r == null || r.error != null) { return null }
417. rows = r.rows
418. }
420. // #24: the movie's own check — signed out the modal, nothing sent
421. on toggleMovie(e) {
422. if (!signedIn) { document.getElementById('signin').showModal() return null }
423. let r = emit server showToggleMovie(slug)
424. if (r == null || r.error != null) { return null }
425. movieWatched = r.watched
426. movieWatchClass = r.watched ? 'checkicon solid' : 'checkicon regular'
427. movieWatchText = r.watched ? 'Watched' : 'Not watched'
428. }
430. on toggleFollow(e) {
431. if (!signedIn) { document.getElementById('signin').showModal() return null }
432. let r = emit server showToggleFollow(slug)
433. if (r == null || r.error != null) { return null }
434. following = r.following
435. followClass = r.following ? 'follow' : 'follow inverted'
436. followText = r.following ? 'Following' : 'Follow'
437. }
439. // ---- the faces (the trailing `session` is always the server's: hybriel#16) ----
440. // every row for these open/closed seasons — only an ADULT show's page still uses it (its followers; tracker#17)
441. on server showRows(slug, collapsed, session) {
442. let show = showBySlug(slug)
443. let uid = userIdOfSession(session)
444. if (show == null || adultHiddenFor(show, uid)) { return { error = 'no such show' } }
445. return { ok = true rows = buildRows(show, uid, collapsed) }
446. }
448. // tracker#17: one season's episodes, in order — public data, so NO `session` (no page re-mount, no sync: the fast path).
449. // Refuses a season of an adult title (those pages use showRows above).
450. on server showSeasonEpisodes(seasonId) {
451. if (seasonId == null || hlTypeName(seasonId) != 'String') { return { error = 'no such season' } }
452. let season = seasonById(seasonId)
453. if (season == null) { return { error = 'no such season' } }
454. let show = showById(season.show)
455. if (show == null || show.adult == true) { return { error = 'no such season' } }
456. let out = []
457. for (e of episodesOfSeason(season)) { out.push({ id = e.id episodeNumber = e.episodeNumber title = e.title != null ? e.title : '' airDate = airDateOf(e) }) }
458. return { ok = true episodes = out }
459. }
461. on server showToggleEpisode(slug, episodeId, collapsed, session) {
462. let show = showBySlug(slug)
463. if (show == null) { return { error = 'no such show' } }
464. let uid = userIdOfSession(session)
465. if (uid == null) { return { error = 'you are not signed in' } }
466. if (adultHiddenFor(show, uid)) { return { error = 'no such show' } }
467. let rows = watchesOfUser(uid)
468. let watched = isWatched(rows, 'episode', episodeId) == false
469. let ok = setWatched(uid, 'episode', episodeId, rows, watched)
470. if (!ok) { return { error = 'could not save the watch' } }
471. return { ok = true rows = buildRows(show, uid, collapsed) }
472. }
474. on server showToggleSeason(slug, seasonId, collapsed, session) {
475. let show = showBySlug(slug)
476. if (show == null) { return { error = 'no such show' } }
477. let uid = userIdOfSession(session)
478. if (uid == null) { return { error = 'you are not signed in' } }
479. if (adultHiddenFor(show, uid)) { return { error = 'no such show' } }
480. let season = seasonById(seasonId)
481. if (season == null) { return { error = 'no such season' } }
482. let rows = watchesOfUser(uid)
483. // #23: not all episodes watched → watch them all; all watched → unwatch them all
484. let watched = !seasonAllWatched(season, watchedSet(rows))
485. let ok = setSeasonWatched(uid, seasonId, season.episodes, rows, watched)
486. if (!ok) { return { error = 'could not save the watch' } }
487. return { ok = true rows = buildRows(show, uid, collapsed) }
488. }
490. // #24: a movie's watched check (only a movie: a series is watched by its episodes)
491. on server showToggleMovie(slug, session) {
492. let show = showBySlug(slug)
493. if (show == null || show.type != 'movie') { return { error = 'no such movie' } }
494. let uid = userIdOfSession(session)
495. if (uid == null) { return { error = 'you are not signed in' } }
496. if (adultHiddenFor(show, uid)) { return { error = 'no such movie' } }
497. let rows = watchesOfUser(uid)
498. let watched = isWatched(rows, 'movie', show.id) == false
499. if (!setWatched(uid, 'movie', show.id, rows, watched)) { return { error = 'could not save the watch' } }
500. return { ok = true watched = watched }
501. }
503. on server showToggleFollow(slug, session) {
504. let show = showBySlug(slug)
505. if (show == null) { return { error = 'no such show' } }
506. let uid = userIdOfSession(session)
507. if (uid == null) { return { error = 'you are not signed in' } }
508. let follow = isFollowing(uid, show.id) == false
509. if (!setFollowed(uid, show.id, follow)) { return { error = 'could not save the follow' } }
510. return { ok = true following = follow }
511. }