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import { Command } from "@/lib/commands/base-command";
import { EditorCore } from "@/core";
import { isVisualElement, updateElementInTracks } from "@/lib/timeline";
import type { TimelineTrack, VisualElement } from "@/lib/timeline";
import { buildDefaultEffectInstance } from "@/lib/effects";
function addEffectToElement({
element,
effectType,
}: {
element: VisualElement;
effectType: string;
}): VisualElement {
const instance = buildDefaultEffectInstance({ effectType });
const currentEffects = element.effects ?? [];
return { ...element, effects: [...currentEffects, instance] };
}
export class AddClipEffectCommand extends Command {
private savedState: TimelineTrack[] | null = null;
private effectId: string | null = null;
private readonly trackId: string;
private readonly elementId: string;
private readonly effectType: string;
constructor({
trackId,
elementId,
effectType,
}: {
trackId: string;
elementId: string;
effectType: string;
}) {
super();
this.trackId = trackId;
this.elementId = elementId;
this.effectType = effectType;
}
execute(): void {
const editor = EditorCore.getInstance();
this.savedState = editor.timeline.getTracks();
const updatedTracks = updateElementInTracks({
tracks: this.savedState,
trackId: this.trackId,
elementId: this.elementId,
elementPredicate: isVisualElement,
update: (element) => {
const updated = addEffectToElement({
element: element as VisualElement,
effectType: this.effectType,
});
const effects = updated.effects ?? [];
this.effectId = effects[effects.length - 1]?.id ?? null;
return updated;
},
});
editor.timeline.updateTracks(updatedTracks);
}
undo(): void {
if (this.savedState) {
const editor = EditorCore.getInstance();
editor.timeline.updateTracks(this.savedState);
}
}
getEffectId(): string | null {
return this.effectId;
}
}
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