feat: preload manifest for accurate offline caching

README.md

@@ -36,6 +36,12 @@ Data files in `static/data/` are tracked in git. The only gitignored output is `
 
 **Data version**: `DATA_VERSION` in `src/ui/app.ts` controls cache invalidation. Bump it when restructuring data (new fields, reorganized bundles, updated sources) to force users to re-fetch cached data on next app load.
 
+**Preload manifest**: After adding or removing data files, regenerate the preload manifest:
+```bash
+npm run generate-manifest
+```
+Then commit the updated `static/data/shared/preload-manifest.json` along with the data changes.
+
 ```bash
 npm run build    # production build
 npm run preview  # preview production build

README_RUS.md

@@ -36,6 +36,12 @@ npm run dev
 
 **Версия данных**: `DATA_VERSION` в `src/ui/app.ts` управляет инвалидацией кэша. Увеличивайте её при реструктуризации данных (новые поля, перегруппированные пачки, обновлённые источники), чтобы пользователи получили свежие данные при следующей загрузке приложения.
 
+**Манифест предзагрузки**: После добавления или удаления файлов данных перегенерируйте манифест:
+```bash
+npm run generate-manifest
+```
+Затем закоммитьте обновлённый `static/data/shared/preload-manifest.json` вместе с изменениями данных.
+
 ```bash
 npm run build    # продуктивная сборка
 npm run preview  # предпросмотр продуктивной сборки

package.json

@@ -10,6 +10,7 @@
     "convert": "tsx scripts/convert-all.ts",
     "migrate": "tsx scripts/migrate-data.ts",
     "migrate:dry": "tsx scripts/migrate-data.ts --dry-run",
+    "generate-manifest": "tsx scripts/generate-preload-manifest.ts",
     "validate": "tsx scripts/validate-data.ts",
     "search": "tsx scripts/tools/search-texts.ts",
     "stats": "tsx scripts/tools/stats.ts",

scripts/generate-preload-manifest.ts

@@ -0,0 +1,219 @@
+/**
+ * Generates preload-manifest.json listing all existing data files
+ * organized by language and type. Run when data files are added or removed.
+ *
+ * Usage: npx tsx scripts/generate-preload-manifest.ts
+ */
+
+import * as fs from 'fs';
+import * as path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const DATA_DIR = path.resolve(__dirname, '../static/data');
+const LANGUAGES = ['en', 'ru', 'cu'];
+const dom = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
+
+interface Manifest {
+  [lang: string]: {
+    calendar: string[];
+    bible: string[];
+  };
+}
+
+function exists(p: string): boolean {
+  return fs.existsSync(path.join(DATA_DIR, p));
+}
+
+function calendarFiles(lang: string): string[] {
+  const files: string[] = [];
+
+  // Lives: month files
+  for (let m = 1; m <= 12; m++) {
+    const p = `/${lang}/lives/${String(m).padStart(2, '0')}.json`;
+    if (exists(p)) files.push(`/data${p}`);
+  }
+  // Lives: misc files
+  for (let d = 0; d <= 9; d++) {
+    const p = `/${lang}/lives/misc/${d}.json`;
+    if (exists(p)) files.push(`/data${p}`);
+  }
+
+  // Shared lives index
+  if (exists('/shared/lives-index.json')) files.push('/data/shared/lives-index.json');
+
+  // Calendar shared
+  for (const f of ['/shared/fasting.json', '/shared/calendar/triodion.json', '/shared/calendar/pentecostarion.json']) {
+    if (exists(f)) files.push(`/data${f}`);
+  }
+
+  // Menaion bundle
+  const mb = `/${lang}/menaion-bundle.json`;
+  if (exists(mb)) files.push(`/data${mb}`);
+
+  // Service templates
+  const tplDir = path.join(DATA_DIR, 'shared/services/templates');
+  if (fs.existsSync(tplDir)) {
+    for (const t of fs.readdirSync(tplDir)) {
+      if (t.endsWith('.json')) {
+        files.push(`/data/shared/services/templates/${t}`);
+      }
+    }
+  }
+
+  // Feast data
+  const svcDir = path.join(DATA_DIR, 'shared/services');
+  if (fs.existsSync(svcDir)) {
+    for (const d of fs.readdirSync(svcDir)) {
+      const fullPath = path.join(svcDir, d, 'full.json');
+      if (fs.statSync(path.join(svcDir, d)).isDirectory() && fs.existsSync(fullPath) && d !== 'templates' && d !== 'canons' && d !== 'paraclete') {
+        files.push(`/data/shared/services/${d}/full.json`);
+      }
+    }
+  }
+
+  // Paraclete day files
+  for (let tone = 1; tone <= 8; tone++) {
+    for (const day of ['mon', 'tue', 'wed', 'thu', 'fri', 'sat']) {
+      const p = `/shared/services/paraclete/tone${tone}/${day}.json`;
+      if (exists(p)) files.push(`/data${p}`);
+    }
+  }
+
+  // Service canons
+  for (let tone = 0; tone <= 7; tone++) {
+    const p = `/shared/services/canons/tone${tone}/sunday.json`;
+    if (exists(p)) files.push(`/data${p}`);
+  }
+  for (let tone = 1; tone <= 8; tone++) {
+    for (const day of ['mon', 'tue', 'wed', 'thu', 'fri', 'sat']) {
+      const p = `/shared/services/canons/paraclete/tone${tone}/${day}.json`;
+      if (exists(p)) files.push(`/data${p}`);
+    }
+  }
+  for (let p = 1; p <= 4; p++) {
+    const fp = `/shared/services/canons/great-canon/part${p}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Menaion daily index
+  if (exists('/shared/menaion-daily/index.json')) files.push('/data/shared/menaion-daily/index.json');
+
+  // Menaion daily sections
+  for (let m = 1; m <= 12; m++) {
+    for (let d = 1; d <= dom[m - 1]; d++) {
+      const dateKey = `${String(m).padStart(2, '0')}-${String(d).padStart(2, '0')}`;
+      for (let n = 1; n <= 4; n++) {
+        const fp = `/shared/menaion-daily/${dateKey}/${n}.json`;
+        if (exists(fp)) files.push(`/data${fp}`);
+      }
+    }
+  }
+
+  // Triodion
+  for (let i = 1; i <= 37; i++) {
+    const fp = `/shared/triodion/${String(i).padStart(2, '0')}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Pentecostarion
+  for (let i = 1; i <= 315; i++) {
+    const fp = `/shared/pentecostarion/${String(i).padStart(2, '0')}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Menaion common + add
+  for (let i = 1; i <= 42; i++) {
+    const fp = `/shared/menaion-common/${String(i).padStart(2, '0')}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+  for (let i = 1; i <= 51; i++) {
+    const fp = `/shared/menaion-add/${String(i).padStart(2, '0')}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Prayer collections
+  const prayerDirs: [string, string[]][] = [];
+  for (const coll of ['akathists', 'horologion', 'prayer-rule', 'sbornik', 'irmologion']) {
+    const collDir = path.join(DATA_DIR, 'shared', coll);
+    if (fs.existsSync(collDir)) {
+      const items = fs.readdirSync(collDir).filter(d => fs.statSync(path.join(collDir, d)).isDirectory());
+      prayerDirs.push([coll, items]);
+    }
+  }
+  for (const [coll, items] of prayerDirs) {
+    for (const item of items) {
+      const fp = `/shared/${coll}/${item}/full.json`;
+      if (exists(fp)) files.push(`/data${fp}`);
+    }
+  }
+
+  // Horologion additions
+  const horAddItems = ['exapostilaria', 'katavasia', 'lamps', 'songs-daily', 'songs-feasts', 'songs-lent',
+    'theotokia-8tones', 'theotokia-dismissal', 'theotokia-sunday', 'trinity-8tones',
+    'trop-common', 'trop-daily', 'trop-lent', 'trop-pentecost', 'trop-sunday'];
+  for (const item of horAddItems) {
+    const fp = `/shared/horologionadd/${item}/full.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+  for (const m of ['jan', 'feb', 'mar', 'apr', 'may', 'jun', 'jul', 'aug', 'sep', 'oct', 'nov', 'dec']) {
+    const fp = `/shared/horologionadd/trop-feasts-${m}/full.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Parimii
+  const parimiiDir = path.join(DATA_DIR, 'shared', 'parimii');
+  if (fs.existsSync(parimiiDir)) {
+    for (const d of fs.readdirSync(parimiiDir)) {
+      const fp = `/shared/parimii/${d}/full.json`;
+      if (exists(fp)) files.push(`/data${fp}`);
+    }
+  }
+
+  // Commemorations
+  for (const cid of ['134', '35', '373', '543', 'F0', 'F6']) {
+    const fp = `/shared/commemorations/${cid}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Language-specific commands
+  for (const cmd of ['Times.json', 'LanguagePacks.json', 'Podobni.json', 'RuleBasedNumbers.json']) {
+    const fp = `/${lang}/commands/${cmd}`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  // Language-specific octoecheos
+  for (let tone = 0; tone <= 7; tone++) {
+    for (const day of ['monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday', 'sunday']) {
+      const fp = `/${lang}/services/octoecheos/tone${tone}/${day}.json`;
+      if (exists(fp)) files.push(`/data${fp}`);
+    }
+  }
+
+  // Language-specific service commands
+  for (let tone = 1; tone <= 8; tone++) {
+    const fp = `/${lang}/services/commands/Tone${tone}.json`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+  for (const cmd of ['AfterEach.json', 'Bow.json', 'Prostration.json', 'S1.json', 'S2.json']) {
+    const fp = `/${lang}/services/commands/${cmd}`;
+    if (exists(fp)) files.push(`/data${fp}`);
+  }
+
+  return files;
+}
+
+const manifest: Manifest = {} as Manifest;
+
+for (const lang of LANGUAGES) {
+  manifest[lang] = {
+    calendar: calendarFiles(lang),
+    bible: ['/data/bible/versions.json'],
+  };
+  console.log(`${lang}: ${manifest[lang].calendar.length} calendar files`);
+}
+
+const outPath = path.join(DATA_DIR, 'shared', 'preload-manifest.json');
+fs.writeFileSync(outPath, JSON.stringify(manifest, null, 2));
+console.log(`\nManifest written to ${outPath}`);

src/core/offline-manager.ts

@@ -399,7 +399,6 @@ export class OfflineManager {
     const estimate = await DataCache.estimate();
     const cachedCount = await DataCache.count();
 
-    // Determine which languages and types are cached
     const cachedLanguages = new Set<string>();
     const cachedTypes = new Set<string>();