/**
 * HTTP 请求封装 - 对应 JS 版 bricks.HttpJson/HttpText
 */
const app = getApp()

class BricksHttp {
  /**
   * GET 请求
   */
  get(url, params = {}) {
    return new Promise((resolve, reject) => {
      const fullUrl = this._withBricksContext(app.entireUrl(url))
      wx.request({
        url: fullUrl,
        data: params,
        method: 'GET',
        header: {
          'Content-Type': 'application/json',
          'Authorization': app.globalData.authToken ? `Bearer ${app.globalData.authToken}` : ''
        },
        success: (res) => {
          if (res.statusCode === 200) resolve(res.data)
          else reject(new Error(`HTTP ${res.statusCode}`))
        },
        fail: (err) => reject(err)
      })
    })
  }

  /**
   * POST 请求
   */
  post(url, data = {}) {
    return new Promise((resolve, reject) => {
      const fullUrl = this._withBricksContext(app.entireUrl(url))
      wx.request({
        url: fullUrl,
        data: JSON.stringify(data),
        method: 'POST',
        header: {
          'Content-Type': 'application/json',
          'Authorization': app.globalData.authToken ? `Bearer ${app.globalData.authToken}` : ''
        },
        success: (res) => {
          if (res.statusCode === 200) resolve(res.data)
          else reject(new Error(`HTTP ${res.statusCode}`))
        },
        fail: (err) => reject(err)
      })
    })
  }

  _withBricksContext(url) {
    if (!/\.(ui|dspy)(\?|$)/.test(url)) return url
    const info = wx.getSystemInfoSync ? wx.getSystemInfoSync() : {}
    const clean = url.replace(/([?&])(_webbricks_|_width|_height|_is_mobile|_lang)=[^&]*&?/g, '$1').replace(/[?&]$/, '')
    const join = clean.indexOf('?') >= 0 ? '&' : '?'
    return clean + join + '_webbricks_=1&_width=' + encodeURIComponent(info.windowWidth || 0) +
      '&_height=' + encodeURIComponent(info.windowHeight || 0) +
      '&_is_mobile=1&_lang=' + encodeURIComponent(info.language || 'zh-CN')
  }
}

module.exports = { BricksHttp }