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import type { EditorCore } from "@/core";
import type { MediaAsset } from "@/types/assets";
import { storageService } from "@/services/storage/service";
import { generateUUID } from "@/utils/id";
import { videoCache } from "@/services/video-cache/service";
import { hasMediaId } from "@/lib/timeline/element-utils";
export class MediaManager {
private assets: MediaAsset[] = [];
private isLoading = false;
private listeners = new Set<() => void>();
constructor(private editor: EditorCore) {}
async addMediaAsset({
projectId,
asset,
}: {
projectId: string;
asset: Omit<MediaAsset, "id">;
}): Promise<void> {
const newAsset: MediaAsset = {
...asset,
id: generateUUID(),
};
this.assets = [...this.assets, newAsset];
this.notify();
try {
await storageService.saveMediaAsset({ projectId, mediaAsset: newAsset });
} catch (error) {
console.error("Failed to save media asset:", error);
this.assets = this.assets.filter((asset) => asset.id !== newAsset.id);
this.notify();
}
}
async removeMediaAsset({
projectId,
id,
}: {
projectId: string;
id: string;
}): Promise<void> {
const asset = this.assets.find((asset) => asset.id === id);
videoCache.clearVideo({ mediaId: id });
if (asset?.url) {
URL.revokeObjectURL(asset.url);
if (asset.thumbnailUrl) {
URL.revokeObjectURL(asset.thumbnailUrl);
}
}
this.assets = this.assets.filter((asset) => asset.id !== id);
this.notify();
const tracks = this.editor.timeline.getTracks();
const elementsToRemove: Array<{ trackId: string; elementId: string }> = [];
for (const track of tracks) {
for (const element of track.elements) {
if (hasMediaId(element) && element.mediaId === id) {
elementsToRemove.push({ trackId: track.id, elementId: element.id });
}
}
}
if (elementsToRemove.length > 0) {
this.editor.timeline.deleteElements({ elements: elementsToRemove });
}
try {
await storageService.deleteMediaAsset({ projectId, id });
} catch (error) {
console.error("Failed to delete media asset:", error);
}
}
async loadProjectMedia({ projectId }: { projectId: string }): Promise<void> {
this.isLoading = true;
this.notify();
try {
const mediaAssets = await storageService.loadAllMediaAssets({
projectId,
});
this.assets = mediaAssets;
this.notify();
} catch (error) {
console.error("Failed to load media assets:", error);
} finally {
this.isLoading = false;
this.notify();
}
}
async clearProjectMedia({ projectId }: { projectId: string }): Promise<void> {
this.assets.forEach((asset) => {
if (asset.url) {
URL.revokeObjectURL(asset.url);
}
if (asset.thumbnailUrl) {
URL.revokeObjectURL(asset.thumbnailUrl);
}
});
const mediaIds = this.assets.map((asset) => asset.id);
this.assets = [];
this.notify();
try {
await Promise.all(
mediaIds.map((id) =>
storageService.deleteMediaAsset({ projectId, id }),
),
);
} catch (error) {
console.error("Failed to clear media assets from storage:", error);
}
}
clearAllAssets(): void {
videoCache.clearAll();
this.assets.forEach((asset) => {
if (asset.url) {
URL.revokeObjectURL(asset.url);
}
if (asset.thumbnailUrl) {
URL.revokeObjectURL(asset.thumbnailUrl);
}
});
this.assets = [];
this.notify();
}
getAssets(): MediaAsset[] {
return this.assets;
}
setAssets({ assets }: { assets: MediaAsset[] }): void {
this.assets = assets;
this.notify();
}
isLoadingMedia(): boolean {
return this.isLoading;
}
subscribe(listener: () => void): () => void {
this.listeners.add(listener);
return () => this.listeners.delete(listener);
}
private notify(): void {
this.listeners.forEach((fn) => fn());
}
}
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