From 7bf0984698e43b9aa2dd879f65951318ed410390 Mon Sep 17 00:00:00 2001
From: Maze <167211895+mazeincoding@users.noreply.github.com>
Date: Sat, 31 Jan 2026 00:20:04 +0100
Subject: codebase overhaul (#697)

---
 .../src/services/storage/migrations/v2-to-v3.ts    | 92 ++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 apps/web/src/services/storage/migrations/v2-to-v3.ts

(limited to 'apps/web/src/services/storage/migrations/v2-to-v3.ts')

diff --git a/apps/web/src/services/storage/migrations/v2-to-v3.ts b/apps/web/src/services/storage/migrations/v2-to-v3.ts
new file mode 100644
index 00000000..eb6db26d
--- /dev/null
+++ b/apps/web/src/services/storage/migrations/v2-to-v3.ts
@@ -0,0 +1,92 @@
+import { getProjectDurationFromScenes } from "@/lib/scenes";
+import { IndexedDBAdapter } from "@/services/storage/indexeddb-adapter";
+import type { TScene } from "@/types/timeline";
+import { StorageMigration } from "./base";
+
+type ProjectRecord = Record<string, unknown>;
+
+export class V2toV3Migration extends StorageMigration {
+	from = 2;
+	to = 3;
+
+	async run(): Promise<void> {
+		const projectsAdapter = new IndexedDBAdapter<unknown>(
+			"video-editor-projects",
+			"projects",
+			1,
+		);
+		const projects = await projectsAdapter.getAll();
+
+		for (const project of projects) {
+			if (!isRecord(project)) {
+				continue;
+			}
+
+			const projectId = getProjectId({ project });
+			if (!projectId) {
+				continue;
+			}
+
+			if (isV3Project({ project })) {
+				continue;
+			}
+
+			const scenes = getScenes({ project });
+			const duration = getProjectDurationFromScenes({ scenes });
+
+			const metadataValue = project.metadata;
+			const metadata = isRecord(metadataValue)
+				? { ...metadataValue, duration }
+				: { duration };
+
+			const migratedProject = {
+				...project,
+				metadata,
+				version: 3,
+			};
+
+			await projectsAdapter.set(projectId, migratedProject);
+		}
+	}
+}
+
+function getProjectId({ project }: { project: ProjectRecord }): string | null {
+	const idValue = project.id;
+	if (typeof idValue === "string" && idValue.length > 0) {
+		return idValue;
+	}
+
+	const metadataValue = project.metadata;
+	if (!isRecord(metadataValue)) {
+		return null;
+	}
+
+	const metadataId = metadataValue.id;
+	if (typeof metadataId === "string" && metadataId.length > 0) {
+		return metadataId;
+	}
+
+	return null;
+}
+
+function getScenes({ project }: { project: ProjectRecord }): TScene[] {
+	const scenesValue = project.scenes;
+	if (!Array.isArray(scenesValue)) {
+		return [];
+	}
+
+	return scenesValue.filter(isRecord) as unknown as TScene[];
+}
+
+function isV3Project({ project }: { project: ProjectRecord }): boolean {
+	const versionValue = project.version;
+	if (typeof versionValue === "number" && versionValue >= 3) {
+		return true;
+	}
+
+	return isRecord(project.metadata) && typeof project.metadata.duration === "number";
+}
+
+function isRecord(value: unknown): value is ProjectRecord {
+	return typeof value === "object" && value !== null;
+}
-- 
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