fix: kairos clip lookaheads are paused with correct seek

Author: Julusian

packages/timeline-state-resolver/src/integrations/kairos/stateBuilder.ts

@@ -328,7 +328,7 @@ export class KairosStateBuilder {
 			this.#deviceState.clipPlayers[playerId],
 			playerId,
 			{
-				content: content.clipPlayer,
+				content: patchPlayerStateForLookahead(content.clipPlayer, timelineObj.isLookahead),
 				instance: timelineObj.instance,
 				mappingOptions: {
 					framerate: mapping.framerate,
@@ -352,7 +352,7 @@ export class KairosStateBuilder {
 			this.#deviceState.ramRecPlayers[playerId],
 			playerId,
 			{
-				content: content.ramRecPlayer,
+				content: patchPlayerStateForLookahead(content.ramRecPlayer, timelineObj.isLookahead),
 				instance: timelineObj.instance,
 				mappingOptions: {
 					framerate: mapping.framerate,
@@ -396,7 +396,7 @@ export class KairosStateBuilder {
 			this.#deviceState.soundPlayers[playerId],
 			playerId,
 			{
-				content: content.soundPlayer,
+				content: patchPlayerStateForLookahead(content.soundPlayer, timelineObj.isLookahead),
 				instance: timelineObj.instance,
 				mappingOptions: {
 					framerate: mapping.framerate,
@@ -411,3 +411,18 @@ export type MappingOptions = {
 	framerate?: number
 	clearPlayerOnStop?: boolean
 }
+
+function patchPlayerStateForLookahead<TClip>(
+	playerState: TimelineContentKairosPlayerState<TClip>,
+	isLookahead: boolean | undefined
+): TimelineContentKairosPlayerState<TClip> {
+	if (!isLookahead) return playerState
+
+	return {
+		...playerState,
+		// Should always be paused in lookahead
+		playing: false,
+		// If no seek, enforce it to the start to allow back to back objects with the same media
+		seek: playerState.seek ?? 0,
+	}
+}