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import type { MigrationResult, ProjectRecord } from "./types";
import { getProjectId, isRecord } from "./utils";
export function transformProjectV7ToV8({
project,
}: {
project: ProjectRecord;
}): MigrationResult<ProjectRecord> {
const projectId = getProjectId({ project });
if (!projectId) {
return { project, skipped: true, reason: "no project id" };
}
if (isV8Project({ project })) {
return { project, skipped: true, reason: "already v8" };
}
const migratedProject = migrateProjectElements({ project });
return {
project: { ...migratedProject, version: 8 },
skipped: false,
};
}
function migrateProjectElements({
project,
}: {
project: ProjectRecord;
}): ProjectRecord {
const scenesValue = project.scenes;
if (!Array.isArray(scenesValue)) return project;
let hasChanges = false;
const migratedScenes = scenesValue.map((scene) => {
const migrated = migrateSceneElements({ scene });
if (migrated !== scene) hasChanges = true;
return migrated;
});
if (!hasChanges) return project;
return { ...project, scenes: migratedScenes };
}
function migrateSceneElements({ scene }: { scene: unknown }): unknown {
if (!isRecord(scene)) return scene;
const tracksValue = scene.tracks;
if (!Array.isArray(tracksValue)) return scene;
let hasChanges = false;
const migratedTracks = tracksValue.map((track) => {
const migrated = migrateTrackElements({ track });
if (migrated !== track) hasChanges = true;
return migrated;
});
if (!hasChanges) return scene;
return { ...scene, tracks: migratedTracks };
}
function migrateTrackElements({ track }: { track: unknown }): unknown {
if (!isRecord(track)) return track;
const elementsValue = track.elements;
if (!Array.isArray(elementsValue)) return track;
let hasChanges = false;
const migratedElements = elementsValue.map((element) => {
const migrated = migrateElement({ element });
if (migrated !== element) hasChanges = true;
return migrated;
});
if (!hasChanges) return track;
return { ...track, elements: migratedElements };
}
function migrateElement({ element }: { element: unknown }): unknown {
if (!isRecord(element)) return element;
if (element.type !== "video" && element.type !== "audio") return element;
if (typeof element.sourceDuration === "number") return element;
const trimStart = typeof element.trimStart === "number" ? element.trimStart : 0;
const duration = typeof element.duration === "number" ? element.duration : 0;
const trimEnd = typeof element.trimEnd === "number" ? element.trimEnd : 0;
return {
...element,
sourceDuration: trimStart + duration + trimEnd,
};
}
function isV8Project({ project }: { project: ProjectRecord }): boolean {
return typeof project.version === "number" && project.version >= 8;
}
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