shipping this slop

apps/web/src/lib/timeline/track-utils.ts

@@ -32,7 +32,7 @@ export function getTrackColor({ type }: { type: TrackType }) {
 
 export function getTrackClasses({ type }: { type: TrackType }) {
   const colors = TRACK_COLORS[type];
-  return `${colors.solid} ${colors.background} ${colors.border}`.trim();
+  return `${colors.background}`.trim();
 }
 
 export function getTrackHeight({ type }: { type: TrackType }): number {
@@ -128,6 +128,48 @@ export function buildEmptyTrack({
   }
 }
 
+export function getDefaultInsertIndexForTrack({
+  tracks,
+  trackType,
+}: {
+  tracks: TimelineTrack[];
+  trackType: TrackType;
+}): number {
+  if (trackType === "audio") {
+    return tracks.length;
+  }
+
+  const mainTrackIndex = tracks.findIndex((track) => isMainTrack(track));
+  if (mainTrackIndex >= 0) {
+    return mainTrackIndex;
+  }
+
+  const firstAudioTrackIndex = tracks.findIndex(
+    (track) => track.type === "audio",
+  );
+  if (firstAudioTrackIndex >= 0) {
+    return firstAudioTrackIndex;
+  }
+
+  return tracks.length;
+}
+
+export function getHighestInsertIndexForTrack({
+  tracks,
+  trackType,
+}: {
+  tracks: TimelineTrack[];
+  trackType: TrackType;
+}): number {
+  const mainTrackIndex = tracks.findIndex((track) => isMainTrack(track));
+
+  if (trackType === "audio") {
+    return mainTrackIndex >= 0 ? mainTrackIndex + 1 : tracks.length;
+  }
+
+  return 0;
+}
+
 export function isMainTrack(track: TimelineTrack): track is VideoTrack {
   return track.type === "video" && track.isMain === true;
 }