Fix controller stalls during large collection launches

src/lib/server/game-files/index.ts

@@ -43,9 +43,14 @@ export function getLibraryFile(versionId: string, path: string) {
         FROM game_file_entries f JOIN game_file_versions v ON v.id=f.version_id WHERE f.version_id=? AND f.path=?`)
         .get(versionId, path) as (GameFileEntry & { state: GameLibraryVersion['state']; sourceHostId: string; storageLocation: string }) | undefined ?? null;
 }
+/** Launch selection needs only the ID; manifests can contain tens of thousands of files. */
+export function newestReadyLibraryId(game: string): string | null {
+    const row = database().prepare("SELECT v.id FROM game_file_versions v JOIN game_file_libraries l ON l.id=v.library_id WHERE l.game=? AND v.state='ready' ORDER BY v.published_at DESC, v.created_at DESC, v.rowid DESC LIMIT 1").get(game) as { id: string } | undefined;
+    return row?.id ?? null;
+}
 export function newestReadyLibrary(game: string): GameLibraryVersion | null {
-    const row = database().prepare("SELECT v.*, l.game FROM game_file_versions v JOIN game_file_libraries l ON l.id=v.library_id WHERE l.game=? AND v.state='ready' ORDER BY v.published_at DESC, v.created_at DESC, v.rowid DESC LIMIT 1").get(game) as VersionRow | undefined;
-    return row ? versionFromRow(row) : null;
+    const id = newestReadyLibraryId(game);
+    return id ? getLibraryVersion(id) : null;
 }
 /** Hosts follow the latest successful publication for each game, including legacy libraries. */
 export function latestPublishedLibraries() {
@@ -79,13 +84,20 @@ export function getHostLibraryCache(hostId: string, versionId: string): HostLibr
     const row = database().prepare('SELECT * FROM host_library_caches WHERE host_id=? AND version_id=?').get(hostId, versionId) as CacheRow | undefined;
     return row ? cacheFromRow(row) : null;
 }
-export function requireReadyLibrary(hostId: string, versionId: string): GameLibraryVersion {
-    const version = getLibraryVersion(versionId);
+/** Admission and dispatch recheck readiness without loading or parsing the file manifest. */
+export function assertReadyLibrary(hostId: string, versionId: string): void {
+    const handle = database();
+    const version = handle.prepare('SELECT state, manifest_sha256 FROM game_file_versions WHERE id=?')
+        .get(versionId) as Pick<VersionRow, 'state' | 'manifest_sha256'> | undefined;
     if (!version || version.state !== 'ready' || libraryFilesRetired(versionId)) throw new Error('Select an available published game-file version.');
-    if (database().prepare("SELECT 1 FROM ec_host_operations WHERE host_id=? AND kind='library.remove' AND json_extract(payload,'$.libraryVersionId')=? AND state IN ('pending','accepted','running','unknown')").get(hostId, versionId)) throw new Error('This host copy is being removed.');
-    const cache = getHostLibraryCache(hostId, versionId);
-    if (!cache || !['ready', 'outdated'].includes(cache.status) || cache.manifestSha256 !== version.manifestSha256) throw new Error('The selected host must finish downloading and verifying this game-file version.');
-    return version;
+    if (handle.prepare("SELECT 1 FROM ec_host_operations WHERE host_id=? AND kind='library.remove' AND json_extract(payload,'$.libraryVersionId')=? AND state IN ('pending','accepted','running','unknown')").get(hostId, versionId)) throw new Error('This host copy is being removed.');
+    const cache = handle.prepare('SELECT status, manifest_sha256 FROM host_library_caches WHERE host_id=? AND version_id=?')
+        .get(hostId, versionId) as Pick<CacheRow, 'status' | 'manifest_sha256'> | undefined;
+    if (!cache || !['ready', 'outdated'].includes(cache.status) || cache.manifest_sha256 !== version.manifest_sha256) throw new Error('The selected host must finish downloading and verifying this game-file version.');
+}
+export function requireReadyLibrary(hostId: string, versionId: string): GameLibraryVersion {
+    assertReadyLibrary(hostId, versionId);
+    return getLibraryVersion(versionId)!;
 }
 
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