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import type { MigrationResult, ProjectRecord } from "./types";
import { getProjectId, isRecord } from "./utils";
export function transformProjectV30ToV31({
project,
}: {
project: ProjectRecord;
}): MigrationResult<ProjectRecord> {
if (!getProjectId({ project })) {
return { project, skipped: true, reason: "no project id" };
}
const version = project.version;
if (typeof version !== "number") {
return { project, skipped: true, reason: "invalid version" };
}
if (version >= 31) {
return { project, skipped: true, reason: "already v31" };
}
if (version !== 30) {
return { project, skipped: true, reason: "not v30" };
}
return {
project: {
...migrateProject({ project }),
version: 31,
},
skipped: false,
};
}
function migrateProject({ project }: { project: ProjectRecord }): ProjectRecord {
const nextProject = { ...project };
if (Array.isArray(project.scenes)) {
nextProject.scenes = project.scenes.map((scene) => migrateScene({ scene }));
}
return nextProject;
}
function migrateScene({ scene }: { scene: unknown }): unknown {
if (!isRecord(scene)) {
return scene;
}
const nextScene = { ...scene };
if (isRecord(scene.tracks)) {
nextScene.tracks = migrateTracks({ tracks: scene.tracks });
}
return nextScene;
}
function migrateTracks({ tracks }: { tracks: ProjectRecord }): ProjectRecord {
const nextTracks = { ...tracks };
if (isRecord(tracks.main)) {
nextTracks.main = migrateTrack({ track: tracks.main });
}
if (Array.isArray(tracks.overlay)) {
nextTracks.overlay = tracks.overlay.map((track) => migrateTrack({ track }));
}
if (Array.isArray(tracks.audio)) {
nextTracks.audio = tracks.audio.map((track) => migrateTrack({ track }));
}
return nextTracks;
}
function migrateTrack({ track }: { track: unknown }): unknown {
if (!isRecord(track) || !Array.isArray(track.elements)) {
return track;
}
return {
...track,
elements: track.elements.map((element) => migrateElement({ element })),
};
}
function migrateElement({ element }: { element: unknown }): unknown {
if (!isRecord(element) || !Array.isArray(element.masks)) {
return element;
}
return {
...element,
masks: element.masks.map((mask) => migrateMask({ mask })),
};
}
function migrateMask({ mask }: { mask: unknown }): unknown {
if (!isRecord(mask) || mask.type !== "custom") {
return mask;
}
// "custom" is the only freeform-path mask type; a down-migration can map
// type === "freeform" back to "custom" without any additional marker.
return {
...mask,
type: "freeform",
};
}
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