"use client";

/**
 * MetricsRepository
 *
 * 指标/埋点仓库：纯远程 fire-and-forget 上报，无本地状态。
 */
import { MetricsApi, metricsApi } from "@/data/services/api";
import { AppEvent, PwaEvent } from "@/data/dto/metrics";
import { Result } from "@/utils";
import type { IMetricsRepository } from "@/data/repositories/interfaces";
import { createLazySingleton } from "./lazy_singleton";

export class MetricsRepository implements IMetricsRepository {
  constructor(private readonly api: MetricsApi) {}

  /**
   * 上报 PWA 事件。
   * 自动注入当前秒级时间戳。
   */
  async reportPwaEvent(input: {
    deviceId: string;
    deviceType: string;
    pwaInstalled: boolean;
    pwaSupported: boolean;
  }): Promise<Result<void>> {
    return Result.wrap(async () => {
      await this.api.reportPwaEvent(
        PwaEvent.from({
          deviceId: input.deviceId,
          deviceType: input.deviceType,
          timestamp: Math.floor(Date.now() / 1000),
          pwaInstalled: input.pwaInstalled,
          pwaSupported: input.pwaSupported,
        }),
      );
    });
  }

  /**
   * 上报用户环境信息（浏览器、UA 等）。
   */
  async reportUserInfo(input: {
    userId: string;
    browser: string;
    userAgent: string;
  }): Promise<Result<void>> {
    return Result.wrap(async () => {
      await this.api.reportUserInfo(
        AppEvent.from({
          userId: input.userId,
          browser: input.browser,
          userAgent: input.userAgent,
        }),
      );
    });
  }
}

/** 全局懒单例。 */
export const getMetricsRepository = createLazySingleton<IMetricsRepository>(
  () => new MetricsRepository(metricsApi),
);