/* eslint-disable no-debugger */
/**
 * 创建图层相关的类
 */
import AjaxUtils from '@/utils/AjaxUtils'
import store from '@/store'

class ServiceLayerHelper {
  constructor (options) {
    this.map = options.map
    this.L = window.L
    this.loadedLayersMap = new Map()
    this.tileLayerWmslayerGroup = this.L.layerGroup().addTo(this.map)
    this.tileLayersWMTSArray = [] // 初始的WMTS集
    this.tileLayersTileArray = [] // 初始的Tile集
    this.tileLayersWMSArray = [] // 初始的WMS集
    this.geojsonArray = {} // 初始的geojson集
    this.layerConfig = {}
    this.regex = /\{(.+?)\}/g // 匹配{}
  }

  getTileLayer (code) {
    return this.loadedLayersMap.get(code)
  }

  /**
     * 根据配置文件初始化业务底图
     */
  initServiceLayers (layerConfig) {
    this.layerConfig = layerConfig
    this.loadLayers(layerConfig.mapConfig.Layers.LayerSewersLine)
  }

  /**
     * 按配置文件加载三种不同类型的
     * @param {*} mapConfig
     * @param {*} isAddToMap
     */
  loadLayers (layerConfig, isAddToMap = true) {
    console.debug('ServiceLayerHelper加载参数：', layerConfig)
    for (let i = 0, len = layerConfig.length; i < len; ++i) {
      const opt = layerConfig[i]
      if (opt.checked) {
        if (opt.type === 'wmts') {
          this.loadWmtsLayer(opt, isAddToMap)
          this.tileLayersWMTSArray.push(opt)
        } else if (opt.type === 'wms') {
          this.loadWmsLayer(opt, isAddToMap)
          this.tileLayersWMSArray.push(opt)
        } else if (opt.type === 'tile') {
          this.loadTileLayer(opt, isAddToMap)
          this.tileLayersTileArray.push(opt)
        } else if (opt.type === 'geojson') {
          this.loadGeojsonLayers(opt)
        }
      }
    }
  }

  loadGeojsonLayers (options) {
    var url = options.url
    var layers = options.layers
    for (var i = 0; i < layers.length; i++) {
      var layer = layers[i]
      var checked = layer.checked
      if (checked) {
        this.loadGeojsonLayer(url, layer)
      }
    }
  }

  loadGeojsonLayer (url, layer) {
    var matches = this.regex.exec(url)
    var matchValue = layer[matches[1]]
    var code = layer.code
    var newUrl = url.replace(this.regex, matchValue)
    var that = this
    if (!that.geojsonArray[code]) {
      AjaxUtils.GetDataAsynByUrl(newUrl, {}, function (res) {
        store.commit('setMapObj', res)
        var layer = that.loadGeojson(res)
        that.geojsonArray[code] = layer
      })
    }
  }

  /**
     * 加载点数据
     * @param res
     */
  loadGeojson (res) {
    var that = this
    const featureGroup = that.L.featureGroup([], {
      attribution: { id: '123' }
    }).addTo(that.map)
    that.L.geoJSON(res.features, {
      style: function (feature) {
        return {
          fill: true,
          weight: 2,
          fillColor: '#06cccc',
          color: '#06cccc',
          fillOpacity: 0.2,
          opacity: 0.8,
          dashArray: '10,4',
          dashSpeed: -10
        }
      },
      pointToLayer: function (geoJsonPoint, latlng) {
        return that.L.canvasMarker(latlng,
          {
            radius: 20,
            img: {
              url: 'assets/images/map/marker-icon.png',
              size: [20, 20]
            }
          })
      }
    }).bindPopup(function (layer) {
      // return layer.feature.properties.linenumber
    }).addTo(featureGroup)
    featureGroup.bringToBack()
    return featureGroup
  }

  removeLayer (item) {
    var code = item.code
    var layer = this.geojsonArray[code]
    if (layer) {
      this.map.removeLayer(layer)
      delete this.geojsonArray[code]
    }
  }

  /**
     * 往地图中加入一个WMTS服务
     * @param {}} options
     * @param {*} isAddToMap
     */
  loadWmtsLayer (options, isAddToMap = true) {
    const layer = this.L.tileLayer(options.url, options.option)
    layer.config = options

    if (isAddToMap) {
      layer.addTo(this.map)
    }
    this.loadedLayersMap.set(options.code, layer)
  }

  /**
     * 往地图中加入一个WMS服务
     * @param {}} options
     * @param {*} isAddToMap
     */
  loadWmsLayer (options, isAddToMap = true) {
    const layer = this.L.tileLayer.wms(options.url, options.option)
    layer.config = options

    if (isAddToMap) {
      layer.addTo(this.tileLayerWmslayerGroup)
    }
    this.loadedLayersMap.set(options.code, layer)
  }

  /**
     * 往地图中加入一个TILE服务
     * @param {}} options
     * @param {*} isAddToMap
     */
  loadTileLayer (options, isAddToMap = true) {
    const layer = this.L.tileLayer(options.url, {
      layers: options.layers || 'all', // country
      format: options.format || 'image/png',
      transparent: options.true || true,
      crs: options.crs || this.L.CRS.EPSG4326,
      maxZoom: options.maxZoom || 21,
      minZoom: options.minZoom || 1,
      zoomOffset: options.zoomOffset || 0
    })
    layer.config = options

    if (isAddToMap) {
      layer.addTo(this.map)
    }
    this.loadedLayersMap.set(options.code, layer)
  }

  /**
     * 隐藏服务图层
     * @param {*} name
     */
  hideTileLayer (code) {
    if (this.loadedLayersMap) {
      const tileLayer = this.loadedLayersMap.get(code)
      this.map.removeLayer(tileLayer)
    }
  }

  /**
     * 展示服务图层
     * @param {*} name
     */
  showTileLayer (code) {
    if (this.loadedLayersMap) {
      const tileLayer = this.loadedLayersMap.get(code)
      this.map.addLayer(tileLayer)
    }
  }

  /**
     * 得到选中的图层列表
     * @param mapConfig
     * @returns {[]}
     */
  getCheckedLayers (serviceLayers) {
    var checkedLayers = []
    for (var i = 0; i < serviceLayers.length; i++) {
      var serviceLayer = serviceLayers[i]
      var layers = serviceLayer.layers
      for (var j = 0; j < layers.length; j++) {
        var layer = layers[j]
        var checked = layer.checked
        if (checked) {
          checkedLayers.push(layer)
        }
      }
    }
    return checkedLayers
  }

  /**
     * 获取所有的TILE服务图层
     */
  getTileLayers () {
    return this.tileLayersTileArray
  }

  /**
     * 获取所有的WMTS服务图层
     */
  getWmtsLayers () {
    return this.tileLayersWMTSArray
  }

  /**
     * 获取所有的WMS服务图层
     */
  getWmsLayers () {
    return this.tileLayersWMSArray
  }

  /**
     * 根据线的选择，得到点的可选择图层数据
     */
  getFiltersGroup () {

  }

  /**
     * 通过code查找WMS的服务配置
     * @param {} code wms服务配置的code
     */
  getWMSConfig (code) {
    const mc = this.mapConfig
    for (let i = 0, len = mc.mapConfig.ServiceLayers.length; i < len; ++i) {
      if (code === mc.mapConfig.ServiceLayers[i].code || mc.mapConfig.ServiceLayers[i].type === 'wms') {
        return mc.mapConfig.ServiceLayers[i]
      }
    }
    return null
  }
}

export default ServiceLayerHelper