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import { EditorCore } from "@/core";
import { Command, type CommandResult } from "@/lib/commands/base-command";
import type { TimelineElement, TimelineTrack } from "@/lib/timeline";
import { updateElementInTracks } from "@/lib/timeline";
import { applyElementUpdate } from "@/lib/timeline/update-pipeline";
export class UpdateElementsCommand extends Command {
private savedState: TimelineTrack[] | null = null;
private readonly updates: Array<{
trackId: string;
elementId: string;
patch: Partial<TimelineElement>;
}>;
constructor({
updates,
}: {
updates: Array<{
trackId: string;
elementId: string;
patch: Partial<TimelineElement>;
}>;
}) {
super();
this.updates = updates;
}
execute(): CommandResult | undefined {
const editor = EditorCore.getInstance();
this.savedState = editor.timeline.getTracks();
let updatedTracks = this.savedState;
for (const updateEntry of this.updates) {
const currentTrack = updatedTracks.find(
(track) => track.id === updateEntry.trackId,
);
const currentElement = currentTrack?.elements.find(
(element) => element.id === updateEntry.elementId,
);
if (!currentTrack || !currentElement) {
continue;
}
const nextElement = applyElementUpdate({
element: currentElement,
patch: updateEntry.patch,
context: {
tracks: updatedTracks,
trackId: updateEntry.trackId,
},
});
updatedTracks = updateElementInTracks({
tracks: updatedTracks,
trackId: updateEntry.trackId,
elementId: updateEntry.elementId,
update: () => nextElement,
});
}
editor.timeline.updateTracks(updatedTracks);
return undefined;
}
undo(): void {
if (this.savedState) {
const editor = EditorCore.getInstance();
editor.timeline.updateTracks(this.savedState);
}
}
}
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