/**
 *! 创建h5页面上拖动的气泡标签
 */
function createH5Bubble(options, devTools) {
  let tagConfig = localStorage.getItem('devTools_tagConfig')
  if (!tagConfig) {
    tagConfig = {}
  } else {
    tagConfig = JSON.parse(tagConfig)
  }

  tagConfig = Object.assign(
    {
      show: options.bubble.status,
      x: window.innerWidth - 90,
      y: window.innerHeight - 90,
    },
    tagConfig,
  )

  tagConfig.show = options.bubble.status

  // 拖动范围限制
  let dragLimit = {
    min: { x: 0, y: 0 },
    max: {
      x: window.innerWidth - 70,
      y: window.innerHeight - 24,
    },
  }

  tagConfig.x = Math.min(Math.max(tagConfig.x, dragLimit.min.x), dragLimit.max.x)
  tagConfig.y = Math.min(Math.max(tagConfig.y, dragLimit.min.y), dragLimit.max.y)

  let tag = document.createElement('div')
  tag.style = `
    box-sizing: border-box;
    position: fixed;
    z-index: 9999999;
    left: ${tagConfig.x}px;
    top: ${tagConfig.y}px;
    width: 70px;
    height: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 6px;
    background-color: ${options.bubble.bgColor};
    color: ${options.bubble.color};
    font-size: 10px;
    cursor: grab;
    box-shadow: 0px 0px 6px ${options.bubble.bgColor};
    backdrop-filter: blur(1px);
  `
  tag.innerHTML = options.bubble.text
  tag.setAttribute('id', 'debugTag')

  if (tagConfig.show) {
    document.body.appendChild(tag)
  }

  /**
   * 标签单击事件
   */
  function tagClick() {
    let pages = getCurrentPages()
    let route = options.route.substring(1, options.route.length - 2)
    if (pages[pages.length - 1].route == route) {
      // 已经处于debug页面，不响应点击事件
      return
    }
    devTools.show()
  }

  let isTouch = false
  let touchStartPoint = {
    clientX: 0,
    clientY: 0,
    tagX: tagConfig.x,
    tagY: tagConfig.y,
    hasMove: false,
  }

  function touchStart(e) {
    if (isTouch) return
    if (e.preventDefault) {
      e.preventDefault()
    }
    let clientX = e.clientX ? e.clientX : e.targetTouches[0].clientX
    let clientY = e.clientX ? e.clientY : e.targetTouches[0].clientY
    touchStartPoint.clientX = clientX
    touchStartPoint.clientY = clientY
    touchStartPoint.tagX = tagConfig.x
    touchStartPoint.tagY = tagConfig.y
    touchStartPoint.hasMove = false
    isTouch = true
  }
  function touchMove(e) {
    if (!isTouch) return
    if (e.preventDefault) {
      e.preventDefault()
    }
    let clientX = e.clientX ? e.clientX : e.targetTouches[0].clientX
    let clientY = e.clientX ? e.clientY : e.targetTouches[0].clientY
    touchStartPoint.hasMove = true

    let offsetX = touchStartPoint.clientX - clientX
    let offsetY = touchStartPoint.clientY - clientY
    let tx = touchStartPoint.tagX - offsetX
    let ty = touchStartPoint.tagY - offsetY
    tx = Math.min(Math.max(tx, dragLimit.min.x), dragLimit.max.x)
    ty = Math.min(Math.max(ty, dragLimit.min.y), dragLimit.max.y)
    tag.style.left = `${tx}px`
    tag.style.top = `${ty}px`
    tagConfig.x = tx
    tagConfig.y = ty
  }
  function touchEnd(e) {
    if (!isTouch) return
    if (e.preventDefault) {
      e.preventDefault()
    }
    isTouch = false
    localStorage.setItem('devTools_tagConfig', JSON.stringify(tagConfig))
    if (!touchStartPoint.hasMove) {
      tagClick()
    }
  }
  tag.addEventListener('touchstart', touchStart)
  tag.addEventListener('touchmove', touchMove)
  tag.addEventListener('touchend', touchEnd)

  tag.addEventListener('mousedown', touchStart)
  document.addEventListener('mousemove', touchMove)
  document.addEventListener('mouseup', touchEnd)

  localStorage.setItem('devTools_tagConfig', JSON.stringify(tagConfig))
}

export default createH5Bubble