import { CTTPClient } from "./CTTPClient";

export class SyncEngine {
  private client: CTTPClient;
  private config: any;
  private syncStates: Map<string, any>;

  constructor(config: any) {
    this.config = config;
    this.client = new CTTPClient();
    this.syncStates = new Map();
  }

  public async sync(url: string, lastSync: string, options?: any): Promise<any> {
    const syncId = this.generateSyncId();
    const changes = [];
    const conflicts = [];

    this.syncStates.set(syncId, {
      id: syncId,
      url,
      lastSync: new Date(lastSync).getTime(),
      currentSync: Date.now(),
      changes,
      conflicts,
      status: "success"
    });

    return {
      syncId,
      timestamp: Date.now(),
      changes,
      conflicts,
      version: "1.0",
      total: 0
    };
  }

  private generateSyncId(): string {
    return Date.now() + "-" + Math.random().toString(36).substring(2, 15);
  }

  public async pull(url: string, options?: any): Promise<any> {
    return { changes: [], timestamp: Date.now(), version: "1.0" };
  }

  public async push(url: string, options?: any): Promise<any> {
    return { accepted: 0, rejected: 0, timestamp: Date.now() };
  }

  public async resolveConflict(url: string, conflictId: string, resolution: any): Promise<void> {}

  public getSyncState(syncId: string): any {
    return this.syncStates.get(syncId);
  }

  public getSyncStates(): any[] {
    return Array.from(this.syncStates.values());
  }

  public clearSyncState(syncId: string): void {
    this.syncStates.delete(syncId);
  }

  public clearAllSyncStates(): void {
    this.syncStates.clear();
  }

  public async close(): Promise<void> {
    await this.client.close();
  }
}