// 从服务端请求到的数据
let state = null

// opca / ocpx 下单为ocpx 其它为ocpa
let priceType = 'ocpa'

~function(exports) {
  let priceElement = null // 出价input
  let priceTypeButtons = [] // 出价切换button
  let optimizeRadioGroup = null // 优化目标组

  function onPriceElementInput(e) {
    if (!state) return
    const max = +state.wx[priceType]
    if (+e.target.value > max) {
      e.target.value = max
    }
  }

  // 优化目标点击, 获取出价类型, 在选完出价类型(CPM或智能优化)后才能触发
  function onOptimizeRadioGroupClick(e) {
    setTimeout(() => {
      priceElement && priceElement.removeEventListener('input', onPriceElementInput)
      priceElement = document.getElementById('price_input')
      priceElement.addEventListener('input', onPriceElementInput)
      priceType = priceElement.parentElement.nextSibling.textContent.includes('下单') ? 'ocpx' : 'ocpa'
    })
  }

  // 出价方式类型点击
  function onPriceTypeButtonClick(e) {
    // 如果选中的是智能优化投放方式则获取优化目标 radio元素
    optimizeRadioGroup && optimizeRadioGroup.removeEventListener('click', onOptimizeRadioGroupClick)
    setTimeout(() => {
      let act = document.querySelector('.adui-button-active')

      if (act.textContent !== 'CPM') {
        // 智能优化
        optimizeRadioGroup = document.querySelectorAll('.adui-radio-group')[1]
        optimizeRadioGroup && optimizeRadioGroup.addEventListener('click', onOptimizeRadioGroupClick)
      } else {
        // CPM
        optimizeRadioGroup = null
      }
    })
  }

  exports.requestLimits = function() {
    !state && chrome.runtime.sendMessage(
      {
        type: "request",
        payload: {
          url: "http://baiyun.kwnpv.com/admin/advertise/throw_price_config/getAllPrice",
          method: "get"
        }
      },
      res => state = res
    )
  }
  
  exports.pagechange = function() {
    if (priceElement) {
      priceElement.removeEventListener('input', onPriceElementInput)
    }
    if (priceTypeButtons.length) {
      priceTypeButtons.forEach(button => button.removeEventListener('click', onPriceTypeButtonClick))
    }
    setTimeout(() => {
      // 出价输入框
      priceElement = document.getElementById('price_input')
      // 所有出价类型按钮
      priceTypeButtons = document.querySelectorAll('.adui-button-group button')

      // 该输入框只是刚进页面时的输入框, 在切换方式的时候应该重新获取
      if (priceElement) {
        priceType= priceElement.parentElement.nextSibling.textContent.includes('下单') ? 'ocpx' : 'ocpa'
        priceElement.addEventListener('input', onPriceElementInput)
      }
      if (priceTypeButtons.length) {
        onPriceTypeButtonClick()
        priceTypeButtons.forEach(button => {
          button.addEventListener('click', onPriceTypeButtonClick)
        })
      }
    }, 500)
  }

  const listenBackgroundTactics = {
    getCookie(payload, sendRes) {
      sendRes(document.cookie)
    }
  }

  exports.listenBackground = function() {
    chrome.runtime.onMessage.addListener(function(message, sender, sendResponse) {
      const handler = listenBackgroundTactics[message.type]
      handler && handler(message.payload, sendResponse, sender)
      return true
    }) 
  }
}(window)