/**
 * API 请求封装
 */

// 从环境变量读取 API 基础地址
const BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:3000'

interface RequestOptions {
  url: string
  method?: 'GET' | 'POST' | 'PUT' | 'DELETE'
  data?: any
  header?: Record<string, string>
}

/**
 * 统一请求方法
 */
function request<T = any>(options: RequestOptions): Promise<T> {
  return new Promise((resolve, reject) => {
    uni.request({
      url: BASE_URL + options.url,
      method: options.method || 'GET',
      data: options.data || {},
      header: {
        'Content-Type': 'application/json',
        ...options.header
      },
      success: (res) => {
        if (res.statusCode >= 200 && res.statusCode < 300) {
          resolve(res.data as T)
        } else {
          reject(new Error(`请求失败: ${res.statusCode} ${(res.data as any)?.message || ''}`))
        }
      },
      fail: (err) => {
        console.error('请求错误:', err)
        reject(new Error(`网络请求失败: ${err.errMsg || '未知错误'}`))
      }
    })
  })
}

// 数据类型定义
export interface BidItem {
  id: string
  title: string
  url: string
  publishDate: string
  source: string
  pin: boolean
  createdAt: string
  updatedAt: string
}

export interface AiRecommendation {
  id: string
  title: string
  confidence: number
  createdAt: string
}

export interface CrawlInfoStat {
  source: string
  count: number
  latestUpdate: string
  latestPublishDate: string
  error: string
}

/**
 * 获取置顶投标项目
 */
export function getPinnedBids(): Promise<BidItem[]> {
  return request<BidItem[]>({
    url: '/api/bids/pinned',
    method: 'GET'
  })
}

/**
 * 获取 AI 推荐
 */
export function getAiRecommendations(): Promise<AiRecommendation[]> {
  return request<AiRecommendation[]>({
    url: '/api/ai/latest-recommendations',
    method: 'GET'
  })
}

/**
 * 获取爬虫统计信息
 */
export function getCrawlInfoStats(): Promise<CrawlInfoStat[]> {
  return request<CrawlInfoStat[]>({
    url: '/api/bids/crawl-info-stats',
    method: 'GET'
  })
}

export default {
  request,
  getPinnedBids,
  getAiRecommendations,
  getCrawlInfoStats
}