refactor: split constants by domain and isolate timeline panel from core

apps/web/src/lib/fps/utils.ts

@@ -0,0 +1,39 @@
+import type { MediaAsset } from "@/lib/media/types";
+
+type MediaAssetFpsInput = Pick<MediaAsset, "type" | "fps">;
+
+export function getHighestImportedVideoFps({
+	mediaAssets,
+}: {
+	mediaAssets: MediaAssetFpsInput[];
+}): number | null {
+	let highestFps: number | null = null;
+
+	for (const asset of mediaAssets) {
+		const fps = asset.fps ?? Number.NaN;
+		if (asset.type !== "video") continue;
+		if (!Number.isFinite(fps) || fps <= 0) continue;
+
+		highestFps = highestFps === null ? fps : Math.max(highestFps, fps);
+	}
+
+	return highestFps;
+}
+
+export function getRaisedProjectFpsForImportedMedia({
+	currentFps,
+	importedAssets,
+}: {
+	currentFps: number;
+	importedAssets: MediaAssetFpsInput[];
+}): number | null {
+	const highestImportedVideoFps = getHighestImportedVideoFps({
+		mediaAssets: importedAssets,
+	});
+
+	if (highestImportedVideoFps === null || highestImportedVideoFps <= currentFps) {
+		return null;
+	}
+
+	return highestImportedVideoFps;
+}