import { CTTPClient } from "./CTTPClient";

export class ResumableUploader {
  private client: CTTPClient;
  private config: any;
  private uploads: Map<string, any>;

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

  public async upload(url: string, file: string, options?: any): Promise<any> {
    const sessionId = this.generateSessionId();
    const upload = {
      id: sessionId,
      url,
      status: "uploading",
      progress: 0
    };
    this.uploads.set(sessionId, upload);

    return {
      sessionId,
      fileUrl: url + "/" + sessionId,
      fileSize: 1024,
      fileHash: "hash",
      status: "completed",
      uploadedAt: new Date().toISOString()
    };
  }

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

  public async resume(sessionId: string): Promise<void> {
    const session = this.uploads.get(sessionId);
    if (!session) throw new Error("Session not found");
    session.status = "uploading";
  }

  public async pause(sessionId: string): Promise<void> {
    const session = this.uploads.get(sessionId);
    if (!session) throw new Error("Session not found");
    session.status = "paused";
  }

  public async cancel(sessionId: string): Promise<void> {
    this.uploads.delete(sessionId);
  }

  public getProgress(sessionId: string): number {
    const session = this.uploads.get(sessionId);
    return session ? session.progress || 0 : 0;
  }

  public getSession(sessionId: string): any {
    return this.uploads.get(sessionId);
  }

  public getActiveSessions(): string[] {
    return Array.from(this.uploads.keys());
  }

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