import { type GameSaveFile, type ParseSaveOptions } from './save.js';
export interface SaveSlotMetadata {
    readonly id: string;
    readonly name: string;
    readonly map: string;
    readonly difficulty: number;
    readonly playtimeSeconds: number;
    readonly timestamp: number;
    readonly version: number;
    readonly bytes: number;
}
type IndexedDbFactory = {
    open(name: string, version?: number): unknown;
};
export interface SaveStorageOptions {
    readonly dbName?: string;
    readonly storeName?: string;
    readonly indexedDB?: IndexedDbFactory | null;
}
export interface SaveWriteOptions {
    readonly name?: string;
}
export declare class SaveStorage {
    private static readonly DEFAULT_DB_NAME;
    private static readonly DEFAULT_STORE;
    private static readonly QUICK_SLOT;
    private readonly adapter;
    constructor(options?: SaveStorageOptions);
    save(slotId: string, save: GameSaveFile, options?: SaveWriteOptions): Promise<SaveSlotMetadata>;
    load(slotId: string, options?: ParseSaveOptions): Promise<GameSaveFile>;
    delete(slotId: string): Promise<boolean>;
    list(): Promise<SaveSlotMetadata[]>;
    quickSave(save: GameSaveFile): Promise<SaveSlotMetadata>;
    quickLoad(options?: ParseSaveOptions): Promise<GameSaveFile>;
}
export {};
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