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import type { MigrationResult, ProjectRecord } from "./types";
import { getProjectId, isRecord } from "./utils";
export function transformProjectV2ToV3({
project,
}: {
project: ProjectRecord;
}): MigrationResult<ProjectRecord> {
const projectId = getProjectId({ project });
if (!projectId) {
return { project, skipped: true, reason: "no project id" };
}
if (isV3Project({ project })) {
return { project, skipped: true, reason: "already v3" };
}
const scenes = getScenes({ project });
const duration = getDurationFromScenes({ scenes });
const metadataValue = project.metadata;
const metadata = isRecord(metadataValue)
? { ...metadataValue, duration }
: { duration };
const migratedProject = {
...project,
metadata,
version: 3,
};
return { project: migratedProject, skipped: false };
}
export { getProjectId } from "./utils";
function getScenes({ project }: { project: ProjectRecord }): unknown[] {
const scenesValue = project.scenes;
if (!Array.isArray(scenesValue)) {
return [];
}
return scenesValue.filter(isRecord);
}
function getDurationFromScenes({ scenes }: { scenes: unknown[] }): number {
const mainScene =
scenes.find(
(s): s is Record<string, unknown> =>
isRecord(s) && s.isMain === true,
) ??
scenes.find(isRecord) ??
null;
if (!mainScene || !Array.isArray(mainScene.tracks)) {
return 0;
}
let maxEnd = 0;
for (const track of mainScene.tracks) {
if (!isRecord(track) || !Array.isArray(track.elements)) continue;
for (const element of track.elements) {
if (!isRecord(element)) continue;
const startTime =
typeof element.startTime === "number" ? element.startTime : 0;
const duration =
typeof element.duration === "number" ? element.duration : 0;
maxEnd = Math.max(maxEnd, startTime + duration);
}
}
return maxEnd;
}
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"
);
}
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