10 files changed, 41 insertions, 272 deletions

diff --git a/apps/web/src/animation/property-registry.ts b/apps/web/src/animation/property-registry.ts
deleted file mode 100644
index 5ba45204..00000000
--- a/apps/web/src/animation/property-registry.ts
+++ /dev/null
@@ -1,200 +0,0 @@
-import type {
-	AnimationBindingKind,
-	AnimationInterpolation,
-	AnimationPropertyPath,
-	AnimationValue,
-	NumericSpec,
-} from "@/animation/types";
-import {
-	coerceParamValue,
-	getParamDefaultInterpolation,
-	getParamNumericRange,
-	getParamValueKind,
-	type ParamDefinition,
-} from "@/params";
-import {
-	getBuiltInElementParams,
-	getElementParam,
-	readElementParamValue,
-	writeElementParamValue,
-} from "@/params/registry";
-import type { ElementType, TimelineElement } from "@/timeline";
-
-export interface AnimationPropertyDefinition {
-	kind: AnimationBindingKind;
-	defaultInterpolation: AnimationInterpolation;
-	numericRanges?: Partial<Record<string, NumericSpec>>;
-	supportsElement: ({ element }: { element: TimelineElement }) => boolean;
-	getValue: ({ element }: { element: TimelineElement }) => AnimationValue | null;
-	coerceValue: ({ value }: { value: AnimationValue }) => AnimationValue | null;
-	applyValue: ({
-		element,
-		value,
-	}: {
-		element: TimelineElement;
-		value: AnimationValue;
-	}) => TimelineElement;
-}
-
-function getFallbackParam({
-	propertyPath,
-}: {
-	propertyPath: AnimationPropertyPath;
-}): ParamDefinition | null {
-	const elementTypes: ElementType[] = [
-		"video",
-		"image",
-		"text",
-		"sticker",
-		"graphic",
-		"audio",
-	];
-	for (const type of elementTypes) {
-		const param =
-			getBuiltInElementParams({ type }).find(
-				(candidate) => candidate.key === propertyPath,
-			) ?? null;
-		if (param) {
-			return param;
-		}
-	}
-	return null;
-}
-
-function buildDefinition({
-	propertyPath,
-	element,
-}: {
-	propertyPath: AnimationPropertyPath;
-	element?: TimelineElement;
-}): AnimationPropertyDefinition | null {
-	const param = element
-		? getElementParam({ element, key: propertyPath })
-		: getFallbackParam({ propertyPath });
-	if (!param || param.keyframable === false) {
-		return null;
-	}
-
-	const range = getParamNumericRange({ param });
-
-	return {
-		kind: getParamValueKind({ param }),
-		defaultInterpolation: getParamDefaultInterpolation({ param }),
-		numericRanges: range ? { value: range } : undefined,
-		supportsElement: ({ element: candidate }) =>
-			getElementParam({ element: candidate, key: propertyPath }) !== null,
-		getValue: ({ element: candidate }) =>
-			readElementParamValue({ element: candidate, param }),
-		coerceValue: ({ value }) => coerceParamValue({ param, value }),
-		applyValue: ({ element: candidate, value }) => {
-			const targetParam = getElementParam({
-				element: candidate,
-				key: propertyPath,
-			});
-			if (!targetParam) {
-				return candidate;
-			}
-			const coercedValue = coerceParamValue({
-				param: targetParam,
-				value,
-			});
-			if (coercedValue === null) {
-				return candidate;
-			}
-			return writeElementParamValue({
-				element: candidate,
-				param: targetParam,
-				value: coercedValue,
-			});
-		},
-	};
-}
-
-export function isAnimationPropertyPath(
-	propertyPath: string,
-): propertyPath is AnimationPropertyPath {
-	return !propertyPath.startsWith("params.") && !propertyPath.startsWith("effects.");
-}
-
-export function getAnimationPropertyDefinition({
-	propertyPath,
-	element,
-}: {
-	propertyPath: AnimationPropertyPath;
-	element?: TimelineElement;
-}): AnimationPropertyDefinition {
-	const definition = buildDefinition({ propertyPath, element });
-	if (!definition) {
-		throw new Error(`Unknown animation property for element: ${propertyPath}`);
-	}
-	return definition;
-}
-
-export function supportsAnimationProperty({
-	element,
-	propertyPath,
-}: {
-	element: TimelineElement;
-	propertyPath: AnimationPropertyPath;
-}): boolean {
-	return getElementParam({ element, key: propertyPath }) !== null;
-}
-
-export function getElementBaseValueForProperty({
-	element,
-	propertyPath,
-}: {
-	element: TimelineElement;
-	propertyPath: AnimationPropertyPath;
-}): AnimationValue | null {
-	const param = getElementParam({ element, key: propertyPath });
-	if (!param) {
-		return null;
-	}
-	return readElementParamValue({ element, param });
-}
-
-export function withElementBaseValueForProperty({
-	element,
-	propertyPath,
-	value,
-}: {
-	element: TimelineElement;
-	propertyPath: AnimationPropertyPath;
-	value: AnimationValue;
-}): TimelineElement {
-	const param = getElementParam({ element, key: propertyPath });
-	if (!param) {
-		return element;
-	}
-	const coercedValue = coerceParamValue({ param, value });
-	if (coercedValue === null) {
-		return element;
-	}
-	return writeElementParamValue({ element, param, value: coercedValue });
-}
-
-export function getDefaultInterpolationForProperty({
-	propertyPath,
-	element,
-}: {
-	propertyPath: AnimationPropertyPath;
-	element?: TimelineElement;
-}): AnimationInterpolation {
-	return getAnimationPropertyDefinition({ propertyPath, element })
-		.defaultInterpolation;
-}
-
-export function coerceAnimationValueForProperty({
-	propertyPath,
-	value,
-	element,
-}: {
-	propertyPath: AnimationPropertyPath;
-	value: AnimationValue;
-	element?: TimelineElement;
-}): AnimationValue | null {
-	return getAnimationPropertyDefinition({ propertyPath, element }).coerceValue({
-		value,
-	});
-}
diff --git a/apps/web/src/services/storage/migrations/__tests__/v28-to-v29.test.ts b/apps/web/src/services/storage/migrations/__tests__/v28-to-v29.test.ts
index dc76b6fd..38a806e1 100644
--- a/apps/web/src/services/storage/migrations/__tests__/v28-to-v29.test.ts
+++ b/apps/web/src/services/storage/migrations/__tests__/v28-to-v29.test.ts
@@ -3,7 +3,7 @@ import { transformProjectV28ToV29 } from "../transformers/v28-to-v29";
 import { asRecord, asRecordArray } from "./helpers";
 
 describe("V28 to V29 Migration", () => {
-	test("moves built-in element fields into params", () => {
+	test("copies built-in element fields into params without deleting source fields", () => {
 		const result = transformProjectV28ToV29({
 			project: {
 				id: "project-v28-builtins",
@@ -83,10 +83,15 @@ describe("V28 to V29 Migration", () => {
 		const tracks = asRecord(scene.tracks);
 		const main = asRecord(tracks.main);
 		const video = asRecordArray(main.elements)[0];
-		expect(video.transform).toBeUndefined();
-		expect(video.opacity).toBeUndefined();
-		expect(video.volume).toBeUndefined();
-		expect(video.muted).toBeUndefined();
+		expect(video.transform).toEqual({
+			position: { x: 12, y: -4 },
+			scaleX: 1.25,
+			scaleY: 0.75,
+			rotate: 9,
+		});
+		expect(video.opacity).toBe(0.5);
+		expect(video.volume).toBe(-6);
+		expect(video.muted).toBe(true);
 		expect(video.params).toEqual({
 			"transform.positionX": 12,
 			"transform.positionY": -4,
@@ -101,8 +106,13 @@ describe("V28 to V29 Migration", () => {
 
 		const overlay = asRecordArray(tracks.overlay)[0];
 		const text = asRecordArray(asRecord(overlay).elements)[0];
-		expect(text.content).toBeUndefined();
-		expect(text.background).toBeUndefined();
+		expect(text.content).toBe("Hello");
+		expect(text.background).toEqual({
+			enabled: true,
+			color: "#111111",
+			paddingX: 10,
+			paddingY: 12,
+		});
 		expect(text.params).toMatchObject({
 			content: "Hello",
 			fontSize: 20,
diff --git a/apps/web/src/services/storage/migrations/transformers/v28-to-v29.ts b/apps/web/src/services/storage/migrations/transformers/v28-to-v29.ts
index c7f68a34..4ce048f6 100644
--- a/apps/web/src/services/storage/migrations/transformers/v28-to-v29.ts
+++ b/apps/web/src/services/storage/migrations/transformers/v28-to-v29.ts
@@ -114,23 +114,6 @@ function migrateElement({ element }: { element: unknown }): unknown {
 	}
 
 	nextElement.params = params;
-	delete nextElement.transform;
-	delete nextElement.opacity;
-	delete nextElement.blendMode;
-	delete nextElement.volume;
-	delete nextElement.muted;
-	delete nextElement.content;
-	delete nextElement.fontSize;
-	delete nextElement.fontFamily;
-	delete nextElement.color;
-	delete nextElement.background;
-	delete nextElement.textAlign;
-	delete nextElement.fontWeight;
-	delete nextElement.fontStyle;
-	delete nextElement.textDecoration;
-	delete nextElement.letterSpacing;
-	delete nextElement.lineHeight;
-
 	return nextElement;
 }
 
diff --git a/apps/web/src/subtitles/build-subtitle-text-element.ts b/apps/web/src/subtitles/build-subtitle-text-element.ts
index c2d59f08..87cc6a03 100644
--- a/apps/web/src/subtitles/build-subtitle-text-element.ts
+++ b/apps/web/src/subtitles/build-subtitle-text-element.ts
@@ -6,7 +6,8 @@ import {
 } from "@/text/layout";
 import { DEFAULTS } from "@/timeline/defaults";
 import { mediaTimeFromSeconds } from "@/wasm";
-import type { CreateTextElement, TextBackground } from "@/timeline";
+import type { CreateTextElement } from "@/timeline";
+import type { TextBackground } from "@/text/background";
 import type {
 	TextAlign,
 	TextDecoration,
diff --git a/apps/web/src/subtitles/types.ts b/apps/web/src/subtitles/types.ts
index a2de9ab7..ec485f22 100644
--- a/apps/web/src/subtitles/types.ts
+++ b/apps/web/src/subtitles/types.ts
@@ -1,4 +1,4 @@
-import type { TextBackground } from "@/timeline";
+import type { TextBackground } from "@/text/background";
 import type {
 	TextAlign,
 	TextDecoration,
diff --git a/apps/web/src/text/background.ts b/apps/web/src/text/background.ts
index be5ab6f5..baa67a52 100644
--- a/apps/web/src/text/background.ts
+++ b/apps/web/src/text/background.ts
@@ -1,2 +1,12 @@
 export const CORNER_RADIUS_MIN = 0;
 export const CORNER_RADIUS_MAX = 100;
+
+export interface TextBackground {
+	enabled: boolean;
+	color: string;
+	cornerRadius?: number;
+	paddingX?: number;
+	paddingY?: number;
+	offsetX?: number;
+	offsetY?: number;
+}
diff --git a/apps/web/src/text/layout.ts b/apps/web/src/text/layout.ts
index 65e17291..c52abc30 100644
--- a/apps/web/src/text/layout.ts
+++ b/apps/web/src/text/layout.ts
@@ -1,4 +1,4 @@
-import type { TextBackground } from "@/timeline";
+import type { TextBackground } from "@/text/background";
 import { DEFAULTS } from "@/timeline/defaults";
 import type { TextAlign } from "@/text/primitives";
 
diff --git a/apps/web/src/text/measure-element.ts b/apps/web/src/text/measure-element.ts
index d89cd2f8..28e97eac 100644
--- a/apps/web/src/text/measure-element.ts
+++ b/apps/web/src/text/measure-element.ts
@@ -1,6 +1,7 @@
 import { CORNER_RADIUS_MIN } from "@/text/background";
 import { DEFAULTS } from "@/timeline/defaults";
-import type { TextBackground, TextElement } from "@/timeline";
+import type { TextElement } from "@/timeline";
+import type { TextBackground } from "@/text/background";
 import { resolveNumberAtTime } from "@/animation/values";
 import {
 	getTextVisualRect,
diff --git a/apps/web/src/timeline/animation-targets.ts b/apps/web/src/timeline/animation-targets.ts
index 8cccc78f..fcdb2915 100644
--- a/apps/web/src/timeline/animation-targets.ts
+++ b/apps/web/src/timeline/animation-targets.ts
@@ -23,9 +23,6 @@ import {
 } from "@/params";
 import {
 	getElementParam,
-	readElementParamValue,
-	writeElementParamValue,
-	type ElementParamDefinition,
 } from "@/params/registry";
 import type { TimelineElement } from "@/timeline";
 import { isVisualElement } from "@/timeline/element-utils";
@@ -96,35 +93,14 @@ function buildElementParamDescriptor({
 		return null;
 	}
 
-	return buildTimelineElementParamDescriptor({ element, param });
-}
-
-function buildTimelineElementParamDescriptor({
-	element,
-	param,
-}: {
-	element: TimelineElement;
-	param: ElementParamDefinition;
-}): AnimationPathDescriptor | null {
-	if (param.keyframable === false) {
-		return null;
-	}
-
-	return {
-		kind: getParamValueKind({ param }),
-		defaultInterpolation: getParamDefaultInterpolation({ param }),
-		numericRanges: paramNumericRanges({ param }),
-		coerceValue: ({ value }) => coerceParamValue({ param, value }),
-		getBaseValue: () => readElementParamValue({ element, param }),
-		setBaseValue: ({ value }) => {
-			const coercedValue = coerceParamValue({ param, value });
-			if (coercedValue === null) {
-				return element;
-			}
-
-			return writeElementParamValue({ element, param, value: coercedValue });
-		},
-	};
+	return buildParamDescriptor({
+		param,
+		baseParams: element.params,
+		setParams: (params) => ({
+			...element,
+			params,
+		}),
+	});
 }
 
 function buildGraphicParamDescriptor({
diff --git a/apps/web/src/timeline/types.ts b/apps/web/src/timeline/types.ts
index c009bc16..5b3e4d29 100644
--- a/apps/web/src/timeline/types.ts
+++ b/apps/web/src/timeline/types.ts
@@ -117,8 +117,6 @@ interface BaseTimelineElement {
 export interface VideoElement extends BaseTimelineElement {
 	type: "video";
 	mediaId: string;
-	volume?: number;
-	muted?: boolean;
 	isSourceAudioEnabled?: boolean;
 	hidden?: boolean;
 	retime?: RetimeConfig;
@@ -134,16 +132,6 @@ export interface ImageElement extends BaseTimelineElement {
 	masks?: Mask[];
 }
 
-export interface TextBackground {
-	enabled: boolean;
-	color: string;
-	cornerRadius?: number;
-	paddingX?: number;
-	paddingY?: number;
-	offsetX?: number;
-	offsetY?: number;
-}
-
 export interface TextElement extends BaseTimelineElement {
 	type: "text";
 	hidden?: boolean;