import type { ApiResponse } from "../client/types";
import proto from "db://assets/Scripts/proto/proto.pb.js";
import type { IGirlService } from "./IGirlService";

export class MockGirlService implements IGirlService {
  private delay(ms = 180) { return new Promise<void>(r => setTimeout(r, ms)); }
  private randInt(min: number, max: number) { return Math.floor(Math.random() * (max - min + 1)) + min; }
  private pick<T>(arr: T[]) { return arr[this.randInt(0, arr.length - 1)]; }

  private ok<T>(data: T): ApiResponse<T> {
    return ({ ok: true, data } as unknown) as ApiResponse<T>;
  }
  private err<T = unknown>(message = "mock error"): ApiResponse<T> {
    return ({ ok: false, error: { message } } as unknown) as ApiResponse<T>;
  }

  private genBrief(id: number): proto.cs.IGirlBrief {
    const tags = ["cute", "cool", "elegant", "sporty", "sweet"];
    return {
      id,
      name: `Girl-${id}`,
      age: this.randInt(18, 28),
      tagKey: this.pick(tags),
      priceType: (id % 2) + 1,
      price: 50 + (id % 6) * 10,
      avatar: `https://dummy.local/avatar/${id}.png`,
      star: (id % 5) + 1,
    };
  }

  private genPhoto(idx: number): proto.cs.IGirlPhoto {
    return { pic: `https://dummy.local/photo/${idx}.jpg`, isRelease: Math.random() < 0.5, price: 20 + (idx % 5) * 5 };
  }

  private genDetail(id: number): proto.cs.IGirlDetail {
    const photos = Array.from({ length: 4 }, (_, i) => this.genPhoto(id * 10 + i));
    return { brief: this.genBrief(id), desc: `Mock detail for ${id}`, photos, isRelease: Math.random() < 0.4, chatCount: this.randInt(0, 5) };
  }

  // 每日推荐
  async reqDailyRecommend(_req: proto.cs.ICSDailyRecommendReq): Promise<ApiResponse<proto.cs.ICSDailyRecommendRes>> {
    await this.delay(180);
    const count = this.randInt(4, 8);
    const girls = Array.from({ length: count }, (_, i) => this.genBrief(100 + i));
    return this.ok({ girls });
  }

  // 获取技师列表
  async reqGetGirlList(req: proto.cs.ICSGetGirlListReq): Promise<ApiResponse<proto.cs.ICSGetGirlListRes>> {
    await this.delay(200);
    const base = (req?.category ?? 0) * 1000 + (req?.page ?? 1) * 100;
    const limit = Math.max(1, Math.min(req?.limit ?? 10, 50));
    const girls = Array.from({ length: limit }, (_, i) => this.genBrief(base + i));
    return this.ok({ girls });
  }

  // 获取技师详细信息
  async reqGetGirlDetail(req: proto.cs.ICSGetGirlDetailReq): Promise<ApiResponse<proto.cs.ICSGetGirlDetailRes>> {
    await this.delay(160);
    const id = req?.id ?? this.randInt(1, 9999);
    return this.ok({ detail: this.genDetail(id) });
  }
}