many changes

src/lib/api/repository-client.ts

@@ -5,7 +5,6 @@
 import { invoke } from "@tauri-apps/api/core";
 import type { QualityPreset } from "./quality-presets";
 import { QUALITY_PRESETS } from "./quality-presets";
-import { validateItemId, validateImageType, validateMediaSourceId, validateNumericParam, validateQueryParamValue } from "$lib/utils/validation";
 import type {
   Library,
   MediaItem,
@@ -229,79 +228,40 @@ export class RepositoryClient {
   }
 
   /**
-   * Get subtitle URL - constructs URL synchronously (no server call)
+   * Get subtitle URL from backend
+   * The Rust backend constructs and returns the URL with proper credentials handling
    */
-  getSubtitleUrl(itemId: string, mediaSourceId: string, streamIndex: number, format: string = "vtt"): string {
-    if (!this._serverUrl || !this._accessToken) {
-      throw new Error("Repository not initialized - call create() first");
-    }
-
-    // Validate inputs to prevent injection attacks
-    validateItemId(itemId);
-    validateMediaSourceId(mediaSourceId);
-    const index = validateNumericParam(streamIndex, 0, 1000, "streamIndex");
-
-    // Validate format - only allow safe subtitle formats
-    if (!/^[a-z]+$/.test(format)) {
-      throw new Error("Invalid subtitle format");
-    }
-
-    return `${this._serverUrl}/Videos/${itemId}/${mediaSourceId}/Subtitles/${index}/Stream.${format}?api_key=${this._accessToken}`;
+  async getSubtitleUrl(
+    itemId: string,
+    mediaSourceId: string,
+    streamIndex: number,
+    format: string = "vtt"
+  ): Promise<string> {
+    return invoke<string>("repository_get_subtitle_url", {
+      handle: this.ensureHandle(),
+      itemId,
+      mediaSourceId,
+      streamIndex,
+      format,
+    });
   }
 
   /**
-   * Get video download URL with quality preset - constructs URL synchronously
-   * Used for offline downloads
+   * Get video download URL with quality preset from backend
+   * The Rust backend constructs and returns the URL with proper credentials handling
+   * Used for offline downloads and transcoding
    */
-  getVideoDownloadUrl(
+  async getVideoDownloadUrl(
     itemId: string,
     quality: QualityPreset = "original",
     mediaSourceId?: string
-  ): string {
-    if (!this._serverUrl || !this._accessToken) {
-      throw new Error("Repository not initialized - call create() first");
-    }
-
-    // Validate itemId and mediaSourceId
-    validateItemId(itemId);
-    if (mediaSourceId) {
-      validateMediaSourceId(mediaSourceId);
-    }
-
-    const preset = QUALITY_PRESETS[quality];
-
-    if (quality === "original" || !preset.videoBitrate) {
-      // Direct stream for original quality
-      const params = new URLSearchParams({
-        api_key: this._accessToken,
-        Static: "true",
-        audioStreamIndex: "0",
-      });
-      if (mediaSourceId) {
-        params.append("MediaSourceId", mediaSourceId);
-      }
-      return `${this._serverUrl}/Videos/${itemId}/stream?${params.toString()}`;
-    }
-
-    // Transcoded download with quality preset
-    const params = new URLSearchParams({
-      api_key: this._accessToken,
-      DeviceId: localStorage.getItem("jellytau_device_id") || "jellytau",
-      Container: "mp4",
-      VideoCodec: "h264",
-      AudioCodec: "aac",
-      AudioStreamIndex: "0",
-      VideoBitrate: preset.videoBitrate.toString(),
-      AudioBitrate: preset.audioBitrate.toString(),
-      MaxHeight: preset.maxHeight?.toString() ?? "",
-      TranscodingMaxAudioChannels: "2",
+  ): Promise<string> {
+    return invoke<string>("repository_get_video_download_url", {
+      handle: this.ensureHandle(),
+      itemId,
+      quality,
+      mediaSourceId: mediaSourceId ?? null,
     });
-
-    if (mediaSourceId) {
-      params.append("MediaSourceId", mediaSourceId);
-    }
-
-    return `${this._serverUrl}/Videos/${itemId}/stream.mp4?${params.toString()}`;
   }
 
   // ===== Favorite Methods (via Rust) =====