feat(downloads): persist offline metadata snapshots

libs/shared/interfaces/src/index.ts

@@ -2,6 +2,7 @@ export * from './lib/channel-drm.interface';
 export * from './lib/channel.interface';
 export * from './lib/channel.model';
 export * from './lib/dev-logger.util';
+export * from './lib/download-metadata.interface';
 export * from './lib/embedded-mpv-session.interface';
 export * from './lib/electron-api.interface';
 export * from './lib/epg-channel-metadata.model';

libs/shared/interfaces/src/lib/download-metadata.interface.ts

@@ -0,0 +1,37 @@
+export interface DownloadMetadataPerson {
+    tmdbPersonId?: number;
+    name: string;
+    role?: string;
+    profileUrl?: string;
+}
+
+export interface DownloadEpisodeMetadata {
+    title?: string;
+    plot?: string;
+    stillUrl?: string;
+    seasonNumber: number;
+    episodeNumber: number;
+}
+
+export interface DownloadMetadataSnapshot {
+    version: 1;
+    language: string;
+    mediaKind: 'movie' | 'series';
+    title: string;
+    originalTitle?: string;
+    plot?: string;
+    releaseDate?: string;
+    year?: number;
+    durationMinutes?: number;
+    genres?: string[];
+    rating?: number;
+    status?: string;
+    posterUrl?: string;
+    backdropUrl?: string;
+    tmdbId?: number;
+    providerCategoryId?: string;
+    cast?: DownloadMetadataPerson[];
+    creators?: DownloadMetadataPerson[];
+    episode?: DownloadEpisodeMetadata;
+    enrichedAt?: string;
+}

libs/shared/interfaces/src/lib/electron-api.interface.ts

@@ -4,6 +4,7 @@ import {
     EmbeddedMpvSession,
     EmbeddedMpvSupport,
 } from './embedded-mpv-session.interface';
+import { DownloadMetadataSnapshot } from './download-metadata.interface';
 import { EpgChannelMetadata } from './epg-channel-metadata.model';
 import { EpgProgram } from './epg-program.model';
 import { ExternalPlayerSession } from './external-player-session.interface';
@@ -516,6 +517,7 @@ export interface ElectronBridgeDownloadStartPayload {
     title: string;
     url: string;
     posterUrl?: string;
+    metadataSnapshot?: DownloadMetadataSnapshot;
     downloadFolder: string;
     headers?: ElectronBridgeDownloadHeaders;
     seriesXtreamId?: number;
@@ -549,6 +551,7 @@ export interface ElectronDownloadItem {
     fileName?: string;
     filePath?: string;
     posterUrl?: string;
+    metadataSnapshot?: DownloadMetadataSnapshot;
     status: ElectronBridgeDownloadStatus;
     fileAvailability: ElectronDownloadFileAvailability;
     bytesDownloaded?: number;
@@ -1083,6 +1086,10 @@ export interface ElectronBridgeApi {
     downloadsRemove: (downloadId: number) => Promise<ElectronBridgeErrorResult>;
     downloadsGetList: (playlistId?: string) => Promise<ElectronDownloadItem[]>;
     downloadsGet: (downloadId: number) => Promise<ElectronDownloadItem | null>;
+    downloadsUpdateMetadata: (
+        downloadId: number,
+        metadataSnapshot: DownloadMetadataSnapshot
+    ) => Promise<ElectronBridgeErrorResult>;
     downloadsGetDefaultFolder: () => Promise<string>;
     downloadsSelectFolder: () => Promise<string | null>;
     downloadsRevealFile: (