import store from '../store';
import config from '@/utils/config.js'
const BASE_URL = config.baseUrl

// 把对象转 queryString，数组展开为 key=val&key=val
function buildQuery(params) {
  const parts = []
  for (const key in params) {
    const val = params[key]
    if (val === null || val === undefined) continue
    if (Array.isArray(val)) {
      // 数组：多次追加 key=xxx
      val.forEach(item => {
        parts.push(`${encodeURIComponent(key)}=${encodeURIComponent(item)}`)
      })
    } else {
      parts.push(`${encodeURIComponent(key)}=${encodeURIComponent(val)}`)
    }
  }
  return parts.join('&')
}

function request({ url, data, method = 'GET' }) {
  return new Promise((resolve, reject) => {
    // 自动带上 token
    const header = {};
    if (store.state.user.token) {
      header.Authorization = store.state.user.token;
    }
    let finalUrl = BASE_URL + url
    let finalData = data
    // GET 请求：手动拼装query，数组展开多同名参数
    if (method.toUpperCase() === 'GET' && data && typeof data === 'object') {
      const query = buildQuery(data)
      if (query) {
        finalUrl += (finalUrl.includes('?') ? '&' : '?') + query
      }
      finalData = undefined // GET 清空data，防止uni.request重复处理
    }
    uni.request({
      url: finalUrl,
      data: finalData,
      method: method.toUpperCase(),
      header,
      success: ({ data }) => {
        // ✅ 全部直接resolve，业务层自己判断code，不再reject业务错误
        resolve(data);
      },
      fail: (error) => {
        uni.showToast({
          title: '网络异常',
          icon: 'none'
        });
        reject(error);
      },
      complete: () => {
        uni.hideLoading();
      }
    });
  });
}

export default request;