From 3e89d2998588f8e35c524e523ba2ee853f0f6475 Mon Sep 17 00:00:00 2001
From: Maze Winther <mazewinther@gmail.com>
Date: Mon, 20 Apr 2026 11:31:17 +0200
Subject: refactor: restructure files to their domains,  new preview overlay
 system, and dep graph

---
 .../keyframes/upsert-effect-param-keyframe.ts      | 104 +++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 apps/web/src/commands/timeline/element/keyframes/upsert-effect-param-keyframe.ts

(limited to 'apps/web/src/commands/timeline/element/keyframes/upsert-effect-param-keyframe.ts')

diff --git a/apps/web/src/commands/timeline/element/keyframes/upsert-effect-param-keyframe.ts b/apps/web/src/commands/timeline/element/keyframes/upsert-effect-param-keyframe.ts
new file mode 100644
index 00000000..eae8f039
--- /dev/null
+++ b/apps/web/src/commands/timeline/element/keyframes/upsert-effect-param-keyframe.ts
@@ -0,0 +1,104 @@
+import { EditorCore } from "@/core";
+import { Command, type CommandResult } from "@/commands/base-command";
+import {
+	buildEffectParamPath,
+	resolveAnimationTarget,
+	upsertPathKeyframe,
+} from "@/animation";
+import { updateElementInSceneTracks } from "@/timeline";
+import { isVisualElement } from "@/timeline/element-utils";
+import type { AnimationInterpolation } from "@/animation/types";
+import type { SceneTracks } from "@/timeline";
+
+export class UpsertEffectParamKeyframeCommand extends Command {
+	private savedState: SceneTracks | null = null;
+	private readonly trackId: string;
+	private readonly elementId: string;
+	private readonly effectId: string;
+	private readonly paramKey: string;
+	private readonly time: number;
+	private readonly value: number | string | boolean;
+	private readonly interpolation: AnimationInterpolation | undefined;
+	private readonly keyframeId: string | undefined;
+
+	constructor({
+		trackId,
+		elementId,
+		effectId,
+		paramKey,
+		time,
+		value,
+		interpolation,
+		keyframeId,
+	}: {
+		trackId: string;
+		elementId: string;
+		effectId: string;
+		paramKey: string;
+		time: number;
+		value: number | string | boolean;
+		interpolation?: AnimationInterpolation;
+		keyframeId?: string;
+	}) {
+		super();
+		this.trackId = trackId;
+		this.elementId = elementId;
+		this.effectId = effectId;
+		this.paramKey = paramKey;
+		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,
+			elementPredicate: isVisualElement,
+			update: (element) => {
+				const boundedTime = Math.max(0, Math.min(this.time, element.duration));
+				const propertyPath = buildEffectParamPath({
+					effectId: this.effectId,
+					paramKey: this.paramKey,
+				});
+				const target = resolveAnimationTarget({
+					element,
+					path: propertyPath,
+				});
+				if (!target) {
+					return element;
+				}
+
+				const animations = upsertPathKeyframe({
+					animations: element.animations,
+					propertyPath,
+					time: boundedTime,
+					value: this.value,
+					interpolation: this.interpolation,
+					keyframeId: this.keyframeId,
+					kind: target.kind,
+					defaultInterpolation: target.defaultInterpolation,
+					coerceValue: target.coerceValue,
+				});
+				return { ...element, animations };
+			},
+		});
+
+		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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