wehub-resource-sync
59 lines
1.7 KiB
TypeScript
59 lines
1.7 KiB
TypeScript
/**
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* Playback Storage - Persist playback engine state to IndexedDB
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*
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* Stores minimal state needed to resume playback from a breakpoint:
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* position (sceneIndex + actionIndex) and consumed discussions.
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*/
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import { db } from './database';
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export interface PlaybackSnapshot {
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sceneIndex: number;
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actionIndex: number;
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consumedDiscussions: string[];
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sceneId?: string; // Scene this snapshot belongs to; discard on mismatch
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}
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/**
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* Save playback state for a stage.
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* Each stage has at most one playback state record.
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*/
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export async function savePlaybackState(
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stageId: string,
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snapshot: PlaybackSnapshot,
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): Promise<void> {
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await db.playbackState.put({
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stageId,
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sceneIndex: snapshot.sceneIndex,
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actionIndex: snapshot.actionIndex,
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consumedDiscussions: snapshot.consumedDiscussions,
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sceneId: snapshot.sceneId,
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updatedAt: Date.now(),
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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} as any);
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}
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/**
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* Load playback state for a stage.
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* Returns null if no saved state exists.
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*/
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export async function loadPlaybackState(stageId: string): Promise<PlaybackSnapshot | null> {
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const record = await db.playbackState.get(stageId);
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if (!record) return null;
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return {
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sceneIndex: record.sceneIndex,
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actionIndex: record.actionIndex,
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consumedDiscussions: record.consumedDiscussions,
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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sceneId: (record as any).sceneId as string | undefined,
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};
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}
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/**
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* Clear playback state for a stage (e.g. on playback complete or stop).
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*/
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export async function clearPlaybackState(stageId: string): Promise<void> {
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await db.playbackState.delete(stageId);
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}
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