import type { L0EventStore, L0EventStoreWithSnapshots, L0EventEnvelope, L0RecordedEvent, L0Snapshot } from "../types/events";
export interface StorageAdapterConfig {
    type: string;
    connection?: string;
    prefix?: string;
    ttl?: number;
    options?: Record<string, unknown>;
}
export type StorageAdapterFactory = (config: StorageAdapterConfig) => L0EventStore | Promise<L0EventStore>;
export declare function registerStorageAdapter(type: string, factory: StorageAdapterFactory): void;
export declare function unregisterStorageAdapter(type: string): boolean;
export declare function getRegisteredAdapters(): string[];
export declare function createEventStore(config: StorageAdapterConfig): Promise<L0EventStore>;
export declare abstract class BaseEventStore implements L0EventStore {
    protected prefix: string;
    protected ttl: number;
    constructor(config?: StorageAdapterConfig);
    protected getStreamKey(streamId: string): string;
    protected getMetaKey(streamId: string): string;
    protected isExpired(timestamp: number): boolean;
    abstract append(streamId: string, event: L0RecordedEvent): Promise<void>;
    abstract getEvents(streamId: string): Promise<L0EventEnvelope[]>;
    abstract exists(streamId: string): Promise<boolean>;
    abstract delete(streamId: string): Promise<void>;
    abstract listStreams(): Promise<string[]>;
    getLastEvent(streamId: string): Promise<L0EventEnvelope | null>;
    getEventsAfter(streamId: string, afterSeq: number): Promise<L0EventEnvelope[]>;
}
export declare abstract class BaseEventStoreWithSnapshots extends BaseEventStore implements L0EventStoreWithSnapshots {
    protected getSnapshotKey(streamId: string): string;
    abstract saveSnapshot(snapshot: L0Snapshot): Promise<void>;
    abstract getSnapshot(streamId: string): Promise<L0Snapshot | null>;
    getSnapshotBefore(streamId: string, seq: number): Promise<L0Snapshot | null>;
}
export declare class FileEventStore extends BaseEventStoreWithSnapshots {
    private basePath;
    private fs;
    private path;
    constructor(config: StorageAdapterConfig & {
        basePath?: string;
    });
    private ensureFs;
    static validateStreamId(streamId: string): string;
    private getFilePath;
    private getSnapshotFilePath;
    append(streamId: string, event: L0RecordedEvent): Promise<void>;
    getEvents(streamId: string): Promise<L0EventEnvelope[]>;
    exists(streamId: string): Promise<boolean>;
    delete(streamId: string): Promise<void>;
    listStreams(): Promise<string[]>;
    saveSnapshot(snapshot: L0Snapshot): Promise<void>;
    getSnapshot(streamId: string): Promise<L0Snapshot | null>;
}
export declare class LocalStorageEventStore extends BaseEventStoreWithSnapshots {
    private storage;
    constructor(config?: StorageAdapterConfig);
    append(streamId: string, event: L0RecordedEvent): Promise<void>;
    getEvents(streamId: string): Promise<L0EventEnvelope[]>;
    exists(streamId: string): Promise<boolean>;
    delete(streamId: string): Promise<void>;
    listStreams(): Promise<string[]>;
    saveSnapshot(snapshot: L0Snapshot): Promise<void>;
    getSnapshot(streamId: string): Promise<L0Snapshot | null>;
    private addToStreamList;
    private removeFromStreamList;
}
export declare class CompositeEventStore implements L0EventStore {
    private stores;
    private primaryIndex;
    constructor(stores: L0EventStore[], primaryIndex?: number);
    private get primary();
    append(streamId: string, event: L0RecordedEvent): Promise<void>;
    getEvents(streamId: string): Promise<L0EventEnvelope[]>;
    exists(streamId: string): Promise<boolean>;
    getLastEvent(streamId: string): Promise<L0EventEnvelope | null>;
    getEventsAfter(streamId: string, afterSeq: number): Promise<L0EventEnvelope[]>;
    delete(streamId: string): Promise<void>;
    listStreams(): Promise<string[]>;
}
export declare function createCompositeStore(stores: L0EventStore[], primaryIndex?: number): CompositeEventStore;
export declare class TTLEventStore implements L0EventStore {
    private store;
    private ttl;
    constructor(store: L0EventStore, ttlMs: number);
    private isExpired;
    private filterExpired;
    append(streamId: string, event: L0RecordedEvent): Promise<void>;
    getEvents(streamId: string): Promise<L0EventEnvelope[]>;
    exists(streamId: string): Promise<boolean>;
    getLastEvent(streamId: string): Promise<L0EventEnvelope | null>;
    getEventsAfter(streamId: string, afterSeq: number): Promise<L0EventEnvelope[]>;
    delete(streamId: string): Promise<void>;
    listStreams(): Promise<string[]>;
}
export declare function withTTL(store: L0EventStore, ttlMs: number): TTLEventStore;
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