import { ref } from 'vue'
import { pushApi } from './api.js'

let pushClientId = ''
let isInitialized = ref(false)

export const pushService = {
  /**
   * 初始化推送服务
   */
  init() {
    return new Promise((resolve, reject) => {
      // #ifdef APP-PLUS
      const plus = window.plus
      plus.push.init({}, {
        cover: true,
        sound: 'system'
      }, () => {
        console.log('Push init success')
        this.getClientId()
        resolve(true)
      }, (err) => {
        console.error('Push init failed:', err)
        reject(err)
      })
      // #endif
      
      // #ifdef MP-WEIXIN
      this.registerWechatDevice()
      resolve(true)
      // #endif
      
      // #ifdef H5
      this.registerWebDevice()
      resolve(true)
      // #endif
    })
  },

  /**
   * 获取客户端推送ID
   */
  getClientId() {
    // #ifdef APP-PLUS
    const push = window.plus.push
    push.getClientInfo((info) => {
      pushClientId = info.clientid
      console.log('Push ClientID:', pushClientId)
      this.registerDevice(pushClientId)
    }, (err) => {
      console.error('Get client ID failed:', err)
    })
    // #endif
  },

  /**
   * 注册设备到服务器
   */
   async registerDevice(clientId) {
    if (!clientId) return
    
    try {
      const platform = uni.getSystemInfoSync().platform || 'web'
      const deviceInfo = uni.getSystemInfoSync()
      
      await pushApi.register(clientId, platform, '', deviceInfo)
      console.log('Device registered successfully')
    } catch (err) {
      console.error('Register device failed:', err)
    }
  },

  /**
   * 监听接收推送消息
   */
  onMessage(callback) {
    // #ifdef APP-PLUS
    const push = window.plus.push
    push.addEventListener('receive', (msg) => {
      console.log('Push received:', msg)
      if (msg.payload) {
        let payload
        try {
          payload = JSON.parse(msg.payload)
        } catch (e) {
          payload = { content: msg.payload }
        }
        callback({
          title: msg.title || '外贸小助手',
          content: msg.content,
          payload,
          timestamp: Date.now()
        })
      }
    })
    // #endif
  },

  /**
   * 监听点击推送消息
   */
  onClick(callback) {
    // #ifdef APP-PLUS
    const push = window.plus.push
    push.addEventListener('click', (msg) => {
      console.log('Push clicked:', msg)
      if (msg.payload) {
        let payload
        try {
          payload = JSON.parse(msg.payload)
        } catch (e) {
          payload = { content: msg.payload }
        }
        callback(payload)
      }
    })
    // #endif
  },

  /**
   * 创建本地推送通知
   */
  createLocalNotification(options) {
    return new Promise((resolve, reject) => {
      // #ifdef APP-PLUS
      const push = window.plus.push
      const msg = {
        title: options.title || '外贸小助手',
        content: options.content,
        payload: options.payload ? JSON.stringify(options.payload) : '',
        delay: options.delay || 0,
        icon: 'static/icons/logo.png'
      }
      
      push.createMessage(msg, (res) => {
        console.log('Local notification created:', res)
        resolve(res)
      }, (err) => {
        console.error('Create notification failed:', err)
        reject(err)
      })
      // #endif
      
      // #ifndef APP-PLUS
      resolve(false)
      // #endif
    })
  },

  /**
   * 微信小程序设备注册
   */
  registerWechatDevice() {
    // #ifdef MP-WEIXIN
    try {
      const systemInfo = uni.getSystemInfoSync()
      const clientId = `${systemInfo.platform}_${Date.now()}`
      this.registerDevice(clientId)
    } catch (err) {
      console.error('Wechat device register failed:', err)
    }
    // #endif
  },

  /**
   * H5 设备注册
   */
  registerWebDevice() {
    // #ifdef H5
    try {
      const clientId = `web_${Date.now()}`
      this.registerDevice(clientId)
    } catch (err) {
      console.error('Web device register failed:', err)
    }
    // #endif
  },

  /**
   * 清除所有推送消息
   */
  clearNotifications() {
    // #ifdef APP-PLUS
    const push = window.plus.push
    push.clear()
    // #endif
  },

  /**
   * 获取未读消息数量
   */
  getBadgeCount() {
    // #ifdef APP-PLUS
    const main = window.plus.android.runtimeMainActivity()
    const count = plus.android.invoke(main, 'getIntent', 'getIntExtra', '/badge', 0)
    return count
    // #endif
    return 0
  },

  /**
   * 设置角标
   */
  setBadge(count) {
    // #ifdef APP-PLUS
    if (uni.setStorageSync) {
      // 小程序设置角标
      // #ifdef MP-WEIXIN
      uni.setStorageSync('badgeCount', count)
      // #endif
    }
    // #endif
  }
}

export default pushService