File size: 1,692 Bytes
f56a29b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /**
* Playback Storage - Persist playback engine state to IndexedDB
*
* Stores minimal state needed to resume playback from a breakpoint:
* position (sceneIndex + actionIndex) and consumed discussions.
*/
import { db } from './database';
export interface PlaybackSnapshot {
sceneIndex: number;
actionIndex: number;
consumedDiscussions: string[];
sceneId?: string; // Scene this snapshot belongs to; discard on mismatch
}
/**
* Save playback state for a stage.
* Each stage has at most one playback state record.
*/
export async function savePlaybackState(
stageId: string,
snapshot: PlaybackSnapshot,
): Promise<void> {
await db.playbackState.put({
stageId,
sceneIndex: snapshot.sceneIndex,
actionIndex: snapshot.actionIndex,
consumedDiscussions: snapshot.consumedDiscussions,
sceneId: snapshot.sceneId,
updatedAt: Date.now(),
// eslint-disable-next-line @typescript-eslint/no-explicit-any
} as any);
}
/**
* Load playback state for a stage.
* Returns null if no saved state exists.
*/
export async function loadPlaybackState(stageId: string): Promise<PlaybackSnapshot | null> {
const record = await db.playbackState.get(stageId);
if (!record) return null;
return {
sceneIndex: record.sceneIndex,
actionIndex: record.actionIndex,
consumedDiscussions: record.consumedDiscussions,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
sceneId: (record as any).sceneId as string | undefined,
};
}
/**
* Clear playback state for a stage (e.g. on playback complete or stop).
*/
export async function clearPlaybackState(stageId: string): Promise<void> {
await db.playbackState.delete(stageId);
}
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