'use script' //开发环境建议开启严格模式

//对应widget.js中MyWidget实例化后的对象
var thisWidget
var layers = []
var layersObj = {}

//当前页面业务
function initWidgetView(_thisWidget) {
  thisWidget = _thisWidget

  //右键
  bindRightMenuEvnet()

  //初始化树
  var setting = {
    check: {
      enable: true,
    },
    data: {
      simpleData: {
        enable: true,
      },
    },
    callback: {
      onCheck: treeOverlays_onCheck,
      onRightClick: treeOverlays_OnRightClick,
      onDblClick: treeOverlays_onDblClick,
      onClick: treeOverlays_onClick,
    },

    view: {
      addDiyDom: addOpacityRangeDom,
    },
  }

  var zNodes = []
  layers = thisWidget.getLayers()
  for (var i = layers.length - 1; i >= 0; i--) {
    var node = _getNodeConfig(layers[i])
    if (node) {
      zNodes.push(node)
    }
  }
  $.fn.zTree.init($('#treeOverlays'), setting, zNodes)
}

function _getNodeConfig(layer) {
  if (layer == null || layer.options.noLayerManage) {
    return
  }

  var item = layer.options  
  if (item.name == '未命名'||item.name== undefined) {
    return
  }
  var node = {
    id: layer.id,
    pId: layer.pid,
    name: layer.name,
    uuid: layer.uuid,
  }

  if (layer.hasEmptyGroup) {
    //空数组
    node.icon = 'img/folder.png'
    node.open = item.open == null ? true : item.open
  } else if (layer.hasChildLayer) {
    //有子节点的数组
    node.icon = 'img/layerGroup.png'
    node.open = item.open == null ? true : item.open
  } else {
    node.icon = 'img/layer.png'
    node.checked = layer.isAdded && layer.show

    if (item._parent) {
      node._parent = item._parent.uuid
    }

    //记录图层
    layersObj[node.uuid] = layer
  }
  return node
}

function addNode(item) {
  var treeObj = $.fn.zTree.getZTreeObj('treeOverlays')

  var parentNode
  if (item.pid && item.pid != -1) {
    parentNode = treeObj.getNodeByParam('id', item.pid, null)
  }

  var node = _getNodeConfig(item)
  if (!node) {
    return
  }

  treeObj.addNodes(parentNode, 0, [node], true)

  //更新子节点图层
  if (item.hasChildLayer) {
    item.eachLayer((childLayer) => {
      removeNode(childLayer)
      addNode(childLayer)
    })
  }
}

function removeNode(layer) {
  var treeObj = $.fn.zTree.getZTreeObj('treeOverlays')

  var node = treeObj.getNodeByParam('uuid', layer.uuid, null)
  if (node) {
    treeObj.removeNode(node)
  }
}

function updateNode(layer) {
  var treeObj = $.fn.zTree.getZTreeObj('treeOverlays')

  var node = treeObj.getNodeByParam('uuid', layer.uuid, null)
  var show = layer.isAdded && layer.show
  if (node) {
    //更新node
    if (node.checked == show) {
      return
    }

    node.checkedOld = node.checked
    node.checked = show

    treeObj.updateNode(node)
  } else {
    addNode(layer, show)
  }
}

//===================================双击定位图层====================================
function treeOverlays_onClick(e, treeId, treeNode, clickFlag) {}

function treeOverlays_onDblClick(event, treeId, treeNode) {
  if (treeNode == null || treeNode.uuid == null) {
    return
  }
  var layer = layersObj[treeNode.uuid]
  if (layer == null) {
    return
  }
  layer.flyTo()
}

//===================================勾选显示隐藏图层====================================

function treeOverlays_onCheck(e, treeId, chktreeNode) {
  var treeObj = $.fn.zTree.getZTreeObj(treeId)
  //获得所有改变check状态的节点
  var changedNodes = treeObj.getChangeCheckedNodes()
  for (var i = 0; i < changedNodes.length; i++) {
    var treeNode = changedNodes[i]
    treeNode.checkedOld = treeNode.checked
    var layer = layersObj[treeNode.uuid]
    if (layer == null) {
      continue
    }

    //显示隐藏透明度设置view
    if (treeNode.checked) {
      $('#' + treeNode.tId + '_range').show()
    
      if(treeNode.name == "土地利用现状"){
       console.log(thisWidget.tuliDiv);
      }
    } else {
      $('#' + treeNode.tId + '_range').hide()
    }

    //特殊处理同目录下的单选的互斥的节点，可在config对应图层节点中配置"radio":true即可
    if (layer.options.radio && treeNode.checked) {
      var nodes = treeObj.getNodesByFilter(
        function (node) {
          var item = layersObj[node.uuid]
          return item.options.radio && item.pid == layer.pid && node.uuid != treeNode.uuid
        },
        false,
        treeNode.getParentNode()
      )
      for (var nidx = 0; nidx < nodes.length; nidx++) {
        nodes[nidx].checkedOld = false
        treeObj.checkNode(nodes[nidx], false, true)
      

        $('#' + nodes[nidx].tId + '_range').hide()

        var layertmp = layersObj[nodes[nidx].uuid]
        layertmp.show = false
      }
    }

    //处理图层显示隐藏
    if (treeNode._parent) {
      var parentLayer = layersObj[treeNode._parent]
      thisWidget.updateLayerShow(layer, treeNode.checked, parentLayer)
    } else {
      thisWidget.updateLayerShow(layer, treeNode.checked)
    }
  }
}

//===================================透明度设置====================================

//在节点后添加自定义控件
function addOpacityRangeDom(treeId, tNode) {
  //if (tNode.icon == "images/folder.png") return;

  var layer = layersObj[tNode.uuid]
  if (!layer || !layer.hasOpacity) {
    return
  }

  var view = $('#' + tNode.tId)
  var silder = '<input id="' + tNode.tId + '_range" type="range" style="width: 50px;" />'
  view.append(silder)

  if (!tNode.checked) {
    $('#' + tNode.tId + '_range').hide()
  }

  $('#' + tNode.tId + '_range').range({
    min: 0,
    max: 100,
    step: 1,
    value: (layer.opacity || 1) * 100,
    onChange: function (value) {
      var opacity = value / 100
      var layer = layersObj[tNode.uuid]
      //设置图层的透明度
      // thisWidget.udpateLayerOpacity(layer, opacity)
      layer.opacity = opacity
    },
  })
}

//===================================右键菜单====================================
var lastRightClickTreeId
var lastRightClickTreeNode

function treeOverlays_OnRightClick(event, treeId, treeNode) {
  if (treeNode == null) {
    return
  }

  var layer = layersObj[treeNode.uuid]
  if (!layer || !layer.hasZIndex) {
    return
  }

  //右击时的节点
  lastRightClickTreeId = treeId
  lastRightClickTreeNode = treeNode

  var top = event.clientY
  var left = event.clientX
  var maxtop = document.body.offsetHeight - 100
  var maxleft = document.body.offsetWidth - 100

  if (top > maxtop) {
    top = maxtop
  }
  if (left > maxleft) {
    left = maxleft
  }

  $('#content_layer_manager_rMenu')
    .css({
      top: top + 'px',
      left: left + 'px',
    })
    .show()
  $('body').bind('mousedown', onBodyMouseDown)
}

function onBodyMouseDown(event) {
  if (!(event.target.id == 'content_layer_manager_rMenu' || $(event.target).parents('#content_layer_manager_rMenu').length > 0)) {
    hideRMenu()
  }
}

function hideRMenu() {
  $('body').unbind('mousedown', onBodyMouseDown)
  $('#content_layer_manager_rMenu').hide()
}

function bindRightMenuEvnet() {
  $('#content_layer_manager_rMenu li').on('click', function () {
    hideRMenu()

    var type = $(this).attr('data-type')
    moveNodeAndLayer(type)
  })
}

//移动节点及图层位置
function moveNodeAndLayer(type) {
  var treeObj = $.fn.zTree.getZTreeObj(lastRightClickTreeId)

  //获得当前节点的所有同级节点
  var childNodes
  var parent = lastRightClickTreeNode.getParentNode()
  if (parent == null) {
    childNodes = treeObj.getNodes()
  } else {
    childNodes = parent.children
  }

  var thisNode = lastRightClickTreeNode
  var thisLayer = layersObj[thisNode.uuid]

  switch (type) {
    default:
      break
    case 'up': //图层上移一层
      {
        let moveNode = thisNode.getPreNode()
        if (moveNode) {
          treeObj.moveNode(moveNode, thisNode, 'prev')
          let moveLayer = layersObj[moveNode.uuid]

          exchangeLayer(thisLayer, moveLayer)
        }
      }
      break

    case 'top': //图层置于顶层
      {
        if (thisNode.getIndex() == 0) {
          return
        }
        while (thisNode.getIndex() > 0) {
          //冒泡交换
          let moveNode = thisNode.getPreNode()
          if (moveNode) {
            treeObj.moveNode(moveNode, thisNode, 'prev')

            let moveLayer = layersObj[moveNode.uuid]
            exchangeLayer(thisLayer, moveLayer)
          }
        }
      }
      break

    case 'down': //图层下移一层
      {
        let moveNode = thisNode.getNextNode()
        if (moveNode) {
          treeObj.moveNode(moveNode, thisNode, 'next')

          let moveLayer = layersObj[moveNode.uuid]
          exchangeLayer(thisLayer, moveLayer)
        }
      }
      break
    case 'bottom': //图层置于底层
      {
        if (thisNode.getIndex() == childNodes.length - 1) {
          return
        }

        while (thisNode.getIndex() < childNodes.length - 1) {
          //冒泡交换
          let moveNode = thisNode.getNextNode()
          if (moveNode) {
            treeObj.moveNode(moveNode, thisNode, 'next')

            let moveLayer = layersObj[moveNode.uuid]
            exchangeLayer(thisLayer, moveLayer)
          }
        }
      }
      break
  }

  //按order重新排序
  layers.sort(function (a, b) {
    return a.zIndex - b.zIndex
  })
}

/**
 * 交换相邻的图层 ： layer1 待移动图层 ，layer2 移动目标图层
 */
function exchangeLayer(layer1, layer2) {
  if (layer1 == null || layer2 == null) {
    return
  }
  var or = layer1.zIndex
  layer1.zIndex = layer2.zIndex //向上移动
  layer2.zIndex = or //向下移动

  console.log(`${layer1.name}:${layer1.zIndex},  ${layer2.name}:${layer2.zIndex}`)

  // //向上移动
  // thisWidget.udpateLayerZIndex(layer1, layer1.zIndex)
  // //向下移动
  // thisWidget.udpateLayerZIndex(layer2, layer2.zIndex)
}

//===================================其他====================================

//地图图层添加移除监听，自动勾选
function updateCheckd(name, checked) {
  var treeObj = $.fn.zTree.getZTreeObj('treeOverlays')
  var nodes = treeObj.getNodesByParam('name', name, null)
  if (nodes && nodes.length > 0) {
    treeObj.checkNode(nodes[0], checked, false)
  } else {
    console.log('未在图层树上找到图层“' + name + '”，无法自动勾选处理')
  }
}