<template>
  <el-dialog :visible.sync="dialogFormVisible" class="editDialog" title="编辑窨井" append-to-body @close="cancel">
    <el-scrollbar :native="false">
      <el-form ref="dataForm" :label-position="labelPosition" :rules="rules" :model="wellForm" label-width="120px">
        <el-row>
          <el-col :span="10">
            <el-form-item label="窨井名称" prop="wellName">
              <el-input v-model.trim="wellForm.wellName" type="text" placeholder="必填"/>
            </el-form-item>
          </el-col>
          <el-col :span="10" :offset="1">
            <el-form-item label="窨井编号" prop="wellCode">
              <el-input v-model.trim="wellForm.wellCode" :disabled="isEditMode" type="text" placeholder="必填"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="10">
            <el-form-item label="窨井类型" prop="wellType">
              <el-select v-model="wellForm.wellType" placeholder="点击选择窨井类型" clearable>
                <el-option
                  v-for="item in wellTypeList"
                  :key="item.value"
                  :label="item.name"
                  :value="item.value"/>
              </el-select>
            </el-form-item>
          </el-col>
          <el-col :span="10" :offset="1">
            <el-form-item label="权属单位" prop="deptid">
              <dept-select v-model="wellForm.deptid" :need-top="deptShowTop" :dept-show="deptShow" dept-type="03" placeholder="选择权属单位" @change="deptChanged"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="10">
            <el-form-item label="井深(m)" prop="deep">
              <el-input v-model.trim="wellForm.deep" type="text" placeholder="需要装液位监测仪的井必填"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="10">
            <el-form-item label="经度" prop="coordinateX">
              <el-input v-model.trim="wellForm.coordinateX" type="text" placeholder="必填"/>
            </el-form-item>
          </el-col>
          <el-col :span="10" :offset="1">
            <el-form-item label="纬度" prop="coordinateY">
              <el-input v-model.trim="wellForm.coordinateY" type="text" placeholder="必填"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="24">
            <el-form-item label="路标图片" prop="images">
              <el-upload
                ref="upload"
                :before-upload="handleBeforeUpload"
                :on-preview="handlePictureCardPreview"
                :on-remove="handleRemove"
                :on-exceed="handleExceed"
                :on-change="handleChange"
                :http-request="uploadFile"
                :file-list="imageList"
                :limit="4"
                :class="{hide:hideUpload}"
                multiple
                action="string"
                accept=".jpg,.jpeg,.png "
                list-type="picture-card">
                <i class="el-icon-plus"/>
              </el-upload>
              <el-dialog :visible.sync="dialogVisible" title="图片预览" append-to-body>
                <div class="imgBox">
                  <img :src="dialogImageUrl" max-height="400px;" alt="" style="margin: 0 auto;">
                </div>
              </el-dialog>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row :gutter="1">

          <el-form-item label="所在区域" required>
            <el-col :span="5">
              <el-form-item prop="qu">
                <el-select v-model="wellForm.qu" :disabled="showResponseDept" placeholder="请选择所在区/县" clearable @change="quChanged">
                  <el-option
                    v-for="item in quList"
                    :key="item.id"
                    :label="item.name"
                    :value="item.id"/>
                </el-select>
              </el-form-item>
            </el-col>
            <el-col :span="1" class="line">区/县</el-col>
            <el-col :span="5">
              <el-form-item prop="area">
                <el-select v-model="wellForm.area" :disabled="showResponseDept" placeholder="请选择所在街道/镇" clearable>
                  <el-option
                    v-for="item in jiedaoList"
                    :key="item.id"
                    :label="item.name"
                    :value="item.id"/>
                </el-select>
              </el-form-item>
            </el-col>
            <el-col :span="1" class="line">街道/镇</el-col>
          </el-form-item>

        </el-row>
        <el-row>
          <el-col :span="15">
            <el-form-item label="详细地址" prop="position">
              <el-input v-model.trim="wellForm.position" type="text" placeholder="必填"/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row v-show="secondDeptTreeList.length>=1" :gutter="20">
          <el-col :span="13">
            <el-form-item label="窨井维护机构" prop="responsibleDept">
              <el-select v-if="secondDeptTreeList.length>=1" v-model="wellForm.responsibleDept" :disabled="showResponseDept" placeholder="选择维护组织，不选默认为权属单位" clearable>
                <el-option
                  v-for="item in secondDeptTreeList"
                  :key="item.id"
                  :label="item.name"
                  :value="item.id"/>
              </el-select>
              <el-input v-else v-model="wellForm.responsibleDeptName" type="text" placeholder="未知" disabled/>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row :gutter="20">
          <el-col :span="15" style="margin-left: 120px; margin-bottom: 40px;">
            <el-button size="medium" @click="cancel"> 取消</el-button>
            <el-button type="primary" size="medium" style="margin-left: 10px;" @click="saveData"> 保存</el-button>
          </el-col>
        </el-row>
      </el-form>
    </el-scrollbar>
  </el-dialog>
</template>

<script>
  import { toTreeList } from '@/utils/structure'
  import SelectTree from '@/components/SelectTree/singleSelect'
  import { getDeptTreeList } from '@/api/dept'
  import { getAreaList, getAreaByDept } from '@/api/area'
  import { getWellType, updateWell } from '@/api/well'
  import { Uploadimg } from '@/api/common'
  import DeptSelect from '@/components/DeptSelect'

  export default {
    name: 'EditWell',
    components: { SelectTree, DeptSelect },
    data() {
      const validateDeep = (rule, value, callback) => {
        if (value !== '') {
          if ((/^[+]{0,1}(\d+)$|^[+]{0,1}(\d+\.\d+)$/).test(value) === false) {
            callback(new Error('请填写大于0的数字'))
          } else {
            const deep = parseFloat(value)
            if (deep > 10 || deep < 0) {
              callback(new Error('请填写0到10数值'))
            } else {
              callback()
            }
          }
        } else {
          callback()
        }
      }
      const validateLng = (rule, value, callback) => {
        if (value !== '') {
          if ((/^[+]{0,1}(\d+)$|^[+]{0,1}(\d+\.\d+)$/).test(value) === false) {
            callback(new Error('请填写大于0的数字'))
          } else {
            callback()
          }
        } else {
          callback(new Error('经度不能为空'))
        }
      }
      const validateLat = (rule, value, callback) => {
        if (value !== '') {
          if ((/^[+]{0,1}(\d+)$|^[+]{0,1}(\d+\.\d+)$/).test(value) === false) {
            callback(new Error('请填写大于0的数字'))
          } else {
            callback()
          }
        } else {
          callback(new Error('纬度不能为空'))
        }
      }
      return {
        dialogFormVisible: false, // 对话框是否显示
        wellForm: {
          id: null, // 窨井id
          wellCode: '', // 窨井编号
          wellName: '', // 窨井名称
          wellType: '', // 窨井类型
          deptid: '', // 权属单位
          deep: '', // 井深，
          position: '', // 位置描述
          coordinateX: '', // 经度
          coordinateY: '', // 纬度
          photos: '', // 照片路径
          notes: '', // 备注,
          qu: '',
          area: '', // 街道
          responsibleDept: '', // 维护人员部门
          responsibleDeptName: '' // 维护人员部门
        }, // 表单
        deptProps: {
          parent: 'pid',
          value: 'id',
          label: 'name',
          children: 'children'
        },
        hideUpload: false,
        imageList: [],
        secondDeptTreeList: [], // 二级组织树列表
        wellTypeList: [],
        quList: [],
        jiedaoList: [],
        textMap: {
          update: '编辑',
          create: '新增'
        }, // 表头显示标题
        rules: {
          wellCode: [{ required: true, message: '窨井编号不能为空', trigger: ['blur', 'change'] }],
          wellName: [{ required: true, message: '窨井名称不能为空', trigger: ['blur', 'change'] }],
          position: [{ required: true, message: '窨井详细地址不能为空', trigger: ['blur', 'change'] }],
          deep: [{ required: false, trigger: ['blur', 'change'], validator: validateDeep }],
          coordinateX: [{ required: true, trigger: ['blur', 'change'], validator: validateLat }],
          coordinateY: [{ required: true, trigger: ['blur', 'change'], validator: validateLng }],
          deptid: [{ required: true, message: '权属单位必选', trigger: 'change' }],
          wellType: [{ required: true, message: '窨井类型必选', trigger: 'change' }],
          qu: [{ required: true, message: '所在区/县必选', trigger: 'change' }],
          area: [{ required: true, message: '所在街道/镇必选', trigger: 'change' }]
        },
        deptShowTop: false, // 权属单位下拉是否显示顶级
        dialogImageUrl: '',
        dialogVisible: false,
        labelPosition: 'right',
        responseAssignShow: false,
        isEditMode: true,
        deptShow: true
      }
    },
    computed: {
      showResponseDept() {
        if (this.wellForm.deptid === '') {
          return true
        } else {
          return false
        }
      },
      firstDept() { // 获取权属单位
        return this.wellForm.deptid
      },
      qu() { // 获取区
        return this.wellForm.qu
      }
    },
    watch: {
      firstDept(val, oldVal) { // 监控权属单位变化
        if (oldVal !== '') {
          if (val !== '') {
            this.wellForm.responsibleDept = ''
            this.wellForm.responsibleDeptName = ''
            this.wellForm.area = ''
            this.wellForm.qu = ''
            this.fetchSecondDeptTree()
            this.fetchArea1()
          }
        } else {
          if (val !== '') {
            this.fetchSecondDeptTree()
            this.fetchArea1()
          }
        }
      },
      qu(val) { // 监控区变化
        if (val !== '') {
          this.fetchArea2()
        }
      }
    },
    mounted: function() {
      this.fetchWellType()
      this.imageList = []
    },
    methods: {
      // 初始化对话框
      initDialog: function(dialogFormVisible, row = null) {
        this.imageList = []
        if (row.photos.length === 0 && this.$refs.upload) this.$refs.upload.clearFiles()
        this.dialogFormVisible = dialogFormVisible
        this.fetchWellType()
        this.wellForm = {
          id: row.id, // 窨井id
          wellCode: row.wellCode, // 窨井编号
          wellName: row.wellName, // 窨井名称
          wellType: row.wellType, // 窨井类型
          deptid: row.deptid, // 权属单位
          deep: row.deep, // 井深，
          position: row.position, // 位置描述
          coordinateX: row.coordinateX, // 经度
          coordinateY: row.coordinateY, // 纬度
          photos: row.photos, // 照片路径
          notes: row.notes, // 备注,
          qu: row.qu,
          area: row.area, // 街道
          responsibleDept: row.responsibleDept, // 维护人员部门
          responsibleDeptName: row.responsibleDeptName // 维护人员部门
        }
        if (row.deptid && row.deptid !== '') {
          this.fetchArea1(row.deptid)
          this.fetchArea2()
          this.fetchSecondDeptTree()
          this.loading = false
        }
        // 处理图片
        const base_url = process.env.BASE_API + '/static/'
        const urls = row.photos.split(';')
        for (const url of urls) {
          if (url) {
            this.imageList.push({ name: url, url: base_url + url })
          }
        }
        this.handleChange(null, this.imageList)
      },
      // 加载组织机构树形下拉菜单
      fetchSecondDeptTree: function() {
        const listQuery = {
          pid: this.wellForm.deptid,
          deptType: '04'
        }
        getDeptTreeList(listQuery).then(response => {
          console.log(response.data)
          if (response.data.list) {
            this.secondDeptTreeList = toTreeList(response.data.list, this.wellForm.deptid)
          }
        })
      },
      // 获取窨井类型
      fetchWellType() {
        getWellType().then(response => {
          this.wellTypeList = []
          const wellTypes = this.$store.getters.wellTypes
          for (const wellType of response.data) {
            if (wellTypes.indexOf(wellType.value) !== -1) {
              this.wellTypeList.push(wellType)
            }
          }
          if (this.wellTypeList.length <= 1) {
            this.showWellType = false
          }
        })
      },
      // 获取区域1
      fetchArea1(deptid) {
        getAreaByDept(this.wellForm.deptid).then(response => {
          if (response.code === 200) {
            const pid = response.data.area
            getAreaList(pid).then(response => {
              this.quList = response.data
            })
          }
        })
      },
      // 改变权属单位选项时
      deptChanged() {
        console.log('deptChanged')
        this.wellForm.responsibleDept = ''
        this.wellForm.area = ''
        this.wellForm.qu = ''
      },
      // 改变区选项时的操作
      quChanged() {
        this.wellForm.area = ''
      },
      // 获取区域2
      fetchArea2() {
        getAreaList(this.wellForm.qu).then(response => {
          this.jiedaoList = response.data
        })
      },
      // 取消
      cancel() {
        this.dialogFormVisible = false
        this.imageList = []
        this.$emit('watchChild')
        // 清除验证
        this.$nextTick(() => {
          this.$refs['dataForm'].clearValidate()
        })
      },
      // 保存数据
      saveData: function() {
        this.wellForm.photos = ''
        if (this.wellForm.responsibleDept === '') {
          if (this.secondDeptTreeList.length > 0) {
            this.$message.warning('必须选择维护机构')
            return
          } else {
            this.wellForm.responsibleDept = this.wellForm.deptid
          }
        }
        for (const image of this.imageList) {
          let index = image.url.indexOf('/static/')
          if (index !== -1) {
            index += 8
          }
          this.wellForm.photos += image.url.substring(index) + ';'
        }
        this.$refs['dataForm'].validate((valid) => {
          if (valid) {
            updateWell(this.wellForm).then(response => {
              console.log('修改窨井')
              if (response.code === 200) {
                this.$message.success('修改成功!')
                this.$emit('watchChild')
                this.dialogFormVisible = false
                this.imageList = []
              }
              // 清除验证
              this.$nextTick(() => {
                this.$refs['dataForm'].clearValidate()
              })
            })
          }
        })
      },
      uploadFile(file) {
        console.log('uploadFile:' + file.file.name)
        const base_url = process.env.BASE_API + '/static/'
        Uploadimg(file).then(res => {
          if (res.code === 200) {
            this.imageList.push({ name: file.file.name, url: base_url + res.data })
          }
        })
      },
      handleBeforeUpload(file) {
        const isJPG = (file.type === 'image/jpeg') || (file.type === 'image/png')
        let res = true
        const isLt2M = file.size / 1024 / 1024 < 5
        if (!isJPG) {
          this.$message.error('上传图片只能是 JPG 或 PNG 格式!')
          res = false
        }
        if (!isLt2M) {
          this.$message.error('上传图片大小不能超过 5MB!')
          res = false
        }
        for (const i in this.fileList) {
          if (this.fileList[i].name === file.name) {
            this.$message.error('该图片已上传过，请选择其他图片')
            res = false
          }
        }
        return res
      },
      // 文件列表移除文件时的钩子
      handleRemove(file, fileList) {
        console.log('handleRemove')
        for (const i in this.imageList) {
          if (this.imageList[i].name === file.name) {
            this.imageList.splice(i, 1)
            this.hideUpload = this.imageList.length >= 4
            return
          }
        }
      },
      handleExceed(files, fileList) {
        this.$message.warning(`限制选择 4 张图片，本次选择了 ${files.length} 张图片，共选择了 ${files.length + fileList.length} 张图片`)
      },
      // 点击文件列表中已上传的文件时的钩子
      handlePictureCardPreview(file) {
        console.log('handlePictureCardPreview')
        this.dialogImageUrl = file.url
        this.dialogVisible = true
      },
      handleChange(file, fileList) {
        console.log('handleChange')
        if (fileList) {
          this.hideUpload = fileList.length >= 4
        } else {
          this.hideUpload = false
        }
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss">
  .hide .el-upload--picture-card {
    display: none;
  }

  .editDialog {
    .el-dialog {
      width: 900px;
      margin-top: 10vh !important;
      .el-dialog__body {
      }
      .el-scrollbar {
        height: 410px;
        width: 100%;
      }
      .el-scrollbar__wrap {
        /*overflow: scroll;*/
        overflow-x: auto;
        overflow-y: auto;
      }
      .el-scrollbar__view {
        width: 98%;
      }
    }
  }

  .el-select {
    width: 100%;
  }

  .line {
    width: 50px;
    margin-left: 5px;
  }

  .hide .el-upload-–picture-card {
    display: none;
  }

  .imgBox {
    width: 100%;
    text-align: center;
  }
</style>