// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()
const db = cloud.database()

// 云函数入口函数
exports.main = async (event, context) => {
  const {
    OPENID
  } = cloud.getWXContext()

  const message_check = await db.collection('message')
    .where({
      _id: event.msg_id
    })
    .get()
  if (message_check.data.length === 0) {
    return {
      errMsg: '信息不存在',
      status: 'ERR'
    }
  }

  const manage_check = await db.collection('manager')
    .where({
      pub_id: message_check.data[0].pub_id,
      user_id: OPENID
    })
    .get()
  if (manage_check.data.length === 0) {
    return {
      errMsg: '只有管理员可以删除',
      status: 'ERR'
    }
  }
  if (manage_check.data[0].role !== '所有者' && manage_check.data[0].role !== '管理者') {
    return {
      errMsg: '没有删除权限',
      status: 'ERR'
    }
  }

  const message = await db.collection('message')
    .doc(event.msg_id)
    .remove()

  return {
    removed: message.removed,
    status: 'OK'
  }
}