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

---
 .../element/effects/update-effect-params.ts        | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 apps/web/src/commands/timeline/element/effects/update-effect-params.ts

(limited to 'apps/web/src/commands/timeline/element/effects/update-effect-params.ts')

diff --git a/apps/web/src/commands/timeline/element/effects/update-effect-params.ts b/apps/web/src/commands/timeline/element/effects/update-effect-params.ts
new file mode 100644
index 00000000..62b3c937
--- /dev/null
+++ b/apps/web/src/commands/timeline/element/effects/update-effect-params.ts
@@ -0,0 +1,87 @@
+import { Command, type CommandResult } from "@/commands/base-command";
+import { EditorCore } from "@/core";
+import { isVisualElement, updateElementInSceneTracks } from "@/timeline";
+import type { ParamValues } from "@/params";
+import type { SceneTracks, VisualElement } from "@/timeline";
+
+function updateEffectParamsOnElement({
+	element,
+	effectId,
+	params,
+}: {
+	element: VisualElement;
+	effectId: string;
+	params: Partial<ParamValues>;
+}): VisualElement {
+	const currentEffects = element.effects ?? [];
+	const updated = currentEffects.map((effect) => {
+		if (effect.id !== effectId) {
+			return effect;
+		}
+
+		const nextParams = { ...effect.params };
+		for (const [key, value] of Object.entries(params)) {
+			if (value !== undefined) {
+				nextParams[key] = value;
+			}
+		}
+
+		return { ...effect, params: nextParams };
+	});
+	return { ...element, effects: updated };
+}
+
+export class UpdateClipEffectParamsCommand extends Command {
+	private savedState: SceneTracks | null = null;
+	private readonly trackId: string;
+	private readonly elementId: string;
+	private readonly effectId: string;
+	private readonly params: Partial<ParamValues>;
+
+	constructor({
+		trackId,
+		elementId,
+		effectId,
+		params,
+	}: {
+		trackId: string;
+		elementId: string;
+		effectId: string;
+		params: Partial<ParamValues>;
+	}) {
+		super();
+		this.trackId = trackId;
+		this.elementId = elementId;
+		this.effectId = effectId;
+		this.params = params;
+	}
+
+	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) => {
+				return updateEffectParamsOnElement({
+					element: element as VisualElement,
+					effectId: this.effectId,
+					params: this.params,
+				});
+			},
+		});
+
+		editor.timeline.updateTracks(updatedTracks);
+		return undefined;
+	}
+
+	undo(): void {
+		if (this.savedState) {
+			const editor = EditorCore.getInstance();
+			editor.timeline.updateTracks(this.savedState);
+		}
+	}
+}
-- 
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