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import { EditorCore } from "@/core";
import { Command, type CommandResult } from "@/commands/base-command";
import { upsertPathKeyframe } from "@/animation";
import { updateElementInSceneTracks } from "@/timeline";
import type { SceneTracks } from "@/timeline";
import { resolveAnimationTarget } from "@/timeline/animation-targets";
import type {
AnimationPath,
AnimationInterpolation,
} from "@/animation/types";
import type { ParamValue } from "@/params";
import {
type MediaTime,
maxMediaTime,
minMediaTime,
ZERO_MEDIA_TIME,
} from "@/wasm";
export class UpsertKeyframeCommand extends Command {
private savedState: SceneTracks | null = null;
private readonly trackId: string;
private readonly elementId: string;
private readonly propertyPath: AnimationPath;
private readonly time: MediaTime;
private readonly value: ParamValue;
private readonly interpolation: AnimationInterpolation | undefined;
private readonly keyframeId: string | undefined;
constructor({
trackId,
elementId,
propertyPath,
time,
value,
interpolation,
keyframeId,
}: {
trackId: string;
elementId: string;
propertyPath: AnimationPath;
time: MediaTime;
value: ParamValue;
interpolation?: AnimationInterpolation;
keyframeId?: string;
}) {
super();
this.trackId = trackId;
this.elementId = elementId;
this.propertyPath = propertyPath;
this.time = time;
this.value = value;
this.interpolation = interpolation;
this.keyframeId = keyframeId;
}
execute(): CommandResult | undefined {
const editor = EditorCore.getInstance();
this.savedState = editor.scenes.getActiveScene().tracks;
const updatedTracks = updateElementInSceneTracks({
tracks: this.savedState,
trackId: this.trackId,
elementId: this.elementId,
update: (element) => {
const target = resolveAnimationTarget({
element,
path: this.propertyPath,
});
if (!target) {
return element;
}
const boundedTime = maxMediaTime({
a: ZERO_MEDIA_TIME,
b: minMediaTime({ a: this.time, b: element.duration }),
});
return {
...element,
animations: upsertPathKeyframe({
animations: element.animations,
propertyPath: this.propertyPath,
time: boundedTime,
value: this.value,
interpolation: this.interpolation,
keyframeId: this.keyframeId,
channelLayout: target.channelLayout,
coerceValue: target.coerceValue,
}),
};
},
});
editor.timeline.updateTracks(updatedTracks);
return undefined;
}
undo(): void {
if (!this.savedState) {
return;
}
const editor = EditorCore.getInstance();
editor.timeline.updateTracks(this.savedState);
}
}
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