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import {
IndexedDBAdapter,
deleteDatabase,
} from "@/services/storage/indexeddb-adapter";
import type { MediaAssetData } from "@/services/storage/types";
import { StorageMigration } from "./base";
import type { ProjectRecord } from "./transformers/types";
import {
getProjectId,
transformProjectV1ToV2,
type TransformV1ToV2Options,
} from "./transformers/v1-to-v2";
export class V1toV2Migration extends StorageMigration {
from = 1;
to = 2;
async transform(project: ProjectRecord): Promise<{
project: ProjectRecord;
skipped: boolean;
reason?: string;
}> {
const projectId = getProjectId({ project });
if (!projectId) {
return { project, skipped: true, reason: "no project id" };
}
const loadMediaAsset = createMediaAssetLoader({ projectId });
const result = await transformProjectV1ToV2({
project,
options: { loadMediaAsset },
});
if (!result.skipped) {
void cleanupLegacyTimelineDBs({
projectId,
project: result.project,
});
}
return result;
}
}
function createMediaAssetLoader({
projectId,
}: {
projectId: string;
}): TransformV1ToV2Options["loadMediaAsset"] {
return async ({ mediaId }: { mediaId: string }) => {
const mediaMetadataAdapter = new IndexedDBAdapter<MediaAssetData>(
`video-editor-media-${projectId}`,
"media-metadata",
1,
);
return mediaMetadataAdapter.get(mediaId);
};
}
function cleanupLegacyTimelineDBs({
projectId,
project,
}: {
projectId: string;
project: ProjectRecord;
}): void {
const scenes = project.scenes;
if (!Array.isArray(scenes)) {
return;
}
const dbNamesToDelete: string[] = [];
for (const scene of scenes) {
if (typeof scene !== "object" || scene === null) {
continue;
}
const sceneId = scene.id;
if (typeof sceneId === "string") {
const sceneDbName = `video-editor-timelines-${projectId}-${sceneId}`;
dbNamesToDelete.push(sceneDbName);
}
}
const projectDbName = `video-editor-timelines-${projectId}`;
dbNamesToDelete.push(projectDbName);
// Fire-and-forget: delete in parallel, don't block migration
void Promise.all(
dbNamesToDelete.map((dbName) =>
deleteDatabase({ dbName }).catch(() => {
// ignore errors, DB might not exist or already deleted
}),
),
);
}
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