<template>
  <div class="bunit">
    <el-form
      :inline="true"
      :model="dataForm"
      @keyup.enter.native="getDataList()">
      <el-form-item style="width: 500px">
        <el-input
          v-model="dataForm.key"
          placeholder="请输入单元编号/猪舍/牧场"
          clearable style="width: 500px">
        </el-input>
      </el-form-item>
      <el-form-item>
        <el-button @click="getDataList()">查询</el-button>
      </el-form-item>
      <el-form-item>
        <el-button v-if="isAuth('sys:role:save')" type="primary" @click="addOrUpdateHandle()">新增</el-button>
      </el-form-item>
      <el-form-item>
        <el-button v-if="isAuth('sys:role:delete')" type="danger" @click="deleteHandle()" :disabled="selectionDataList.length <= 0">批量删除</el-button>
      </el-form-item>
    </el-form>
    <el-table
      height="670"
      :data="dataList"
      @selection-change="selectionChangeHandle"
      v-loading="dataListLoading"
      style="width: 100%"
      :row-class-name="tableRowClassName">
      <el-table-column
        type="selection"
        header-align="center"
        align="center"
        width="50">
      </el-table-column>
      <el-table-column
        prop="number"
        header-align="center"
        align="center"
        label="单元编号">
      </el-table-column>
      <el-table-column
        prop="phNumber"
        header-align="center"
        align="center"
        label="所属猪舍">
      </el-table-column>
      <el-table-column
        prop="name"
        header-align="center"
        align="center"
        label="所属牧场">
      </el-table-column>
      <el-table-column
        fixed="right"
        header-align="center"
        align="center"
        label="操作">
        <template slot-scope="scope">
          <el-button v-if="isAuth('sys:user:update')" type="success" size="mini" @click="addOrUpdateHandle(scope.row)">修改</el-button>
          <el-button v-if="isAuth('sys:user:delete')" type="danger" size="mini" @click="deleteHandle(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <div class="block">
      <el-pagination
        @size-change="sizeChangeHandle"
        @current-change="currentChangeHandle"
        :current-page="pageIndex"
        :page-sizes="[10, 20, 30, 50, 100]"
        :page-size="pageSize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="totalPage">
      </el-pagination>
    </div>
    <el-dialog
      :title="!form.id ? '新增' : '修改'"
      :close-on-click-modal="false"
      :visible.sync="visible"
      @close="cancel">
      <el-form :model="form" ref="form" @keyup.enter.native="formSubmit()" label-width="80px" :rules="dataRule">
        <el-form-item label="所属牧场" prop="pastureId">
          <el-select v-model="form.pastureId" placeholder="请选择所属牧场" @change="getPasture" style="width: 100%">
            <el-option
              v-for="item in pastureList"
              :key="item.id"
              :label="item.name"
              :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="所属猪舍" prop="pigstyId">
          <el-select v-model="form.pigstyId" placeholder="请选择所属猪舍" @change="getPigsty" style="width: 100%">
            <el-option
              v-for="item in phSelectedList"
              :key="item.id"
              :label="item.number"
              :value="item.id">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="单元编号" prop="number">
          <el-input v-model="form.number" placeholder="请输入单元编号"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="cancel">关闭</el-button>
        <el-button type="primary" @click="formSubmit()">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data () {
    return {
      dataForm: {
        key: ''
      },
      dataList: [
        {
          id: '',
          number: '',
          phNumber: '',
          name: '',
        }
      ],
      pageIndex: 1,
      pageSize: 10,
      totalPage: 0,
      dataListLoading: false,
      selectionDataList: [],
      visible: false,
      form: {
        id: '',
        number: '',
        pastureId: '',
        pigstyId: ''
      },
      pastureList: [], // 牧场list
      pighouseList: [], // 猪舍list
      phSelectedList: [], // 选择过牧场后的猪舍list
      dataRule: {
        pastureId: [
          { required: true, message: '所属牧场不能为空', trigger: 'blur' }
        ],
        pigstyId: [
          { required: true, message: '所属猪舍不能为空', trigger: 'blur' }
        ],
        number: [
          { required: true, message: '单元编号不能为空', trigger: ['blur', 'change'] }
          // TODO: 单元编号长度校验
          // TODO: 单元编号正则校验
        ]
      }
    }
  },
  mounted () {
    this.getDataList()
  },
  methods: {
    // 获取数据列表
    getDataList () {
      this.dataListLoading = true
      this.$http({
        url: this.$http.adornUrl('/management/unit/list'),
        method: 'post',
        params: this.$http.adornParams({
          page: 1,
          limit: 10,
          keywords: this.dataForm.key
        })
      }).then(async ({ data }) => {
        // 获取所有牧场
        let pastureResult = await this.$http({
          url: this.$http.adornUrl('/management/pasture/findAll'),
          method: 'post'
        })
        pastureResult.data.all && (this.pastureList = pastureResult.data.all)
        // 获取所有猪舍
        let pighouseResult = await this.$http({
          url: this.$http.adornUrl('/management/pigsty/findAll'),
          method: 'post'
        })
        pighouseResult.data.all && (this.pighouseList = pighouseResult.data.all)
        if (data && data.code === 0) {
          this.dataList = data.page.list
          this.totalPage = data.page.totalCount
          // 牧场对应
          this.dataList.forEach(item => {
            for (let pasture of this.pastureList) {
              if (item.pastureId === pasture.id) {
                item.name = pasture.name
                break
              }
            }
          });
          // 猪舍对应
          this.dataList.forEach(item => {
            for (let pighouse of this.pighouseList) {
              if (item.pigstyId === pighouse.id) {
                item.phNumber = pighouse.number
                break
              }
            }
          });
          this.phSelectedList = this.pighouseList
        } else {
          this.dataList = []
          this.totalPage = 0
        }
        this.dataListLoading = false
      })
    },
    // 每页数
    sizeChangeHandle (val) {
      this.pageSize = val
      this.pageIndex = 1
      this.getDataList()
    },
    // 当前页
    currentChangeHandle (val) {
      this.pageIndex = val
      this.getDataList()
    },
    // 获取到了牧场 → 限制猪舍
    getPasture (val) {
      this.phSelectedList = []
      this.pighouseList.forEach(item => {
        if (item.pastureId === val) {
          this.phSelectedList.push(item)
        }
      });
      // 如果已有选中的猪舍，且该猪舍不属于该牧场，则清空猪舍选择
      let i;
      for (i = 0; i < this.phSelectedList.length; i++) {
        let item = this.phSelectedList[i];
        if (item.id === this.form.pigstyId) {
          break
        }
      }
      if (i === this.phSelectedList.length) {
        this.form.pigstyId = ''
      }
    },
    // 获取到猪舍
    getPigsty (val) {
      //  → 反向确定牧场
      for (let item of this.pighouseList) {
        if (item.id === val) {
          this.form.pastureId = item.pastureId
          break
        }
      }
      // → 先获取猪舍，没有确定牧场的情况下，限制猪舍
      this.phSelectedList = []
      this.pighouseList.forEach(item => {
        if (item.pastureId === this.form.pastureId) {
          this.phSelectedList.push(item)
        }
      });
    },
    // 新增 or 修改单元
    addOrUpdateHandle (row) {
      // 显示牧场新增 or 修改面板
      this.visible = true
      if (row) {
        for (let key of Object.keys(this.form)) {
          this.form[key] = row[key]
        }
        this.form.id = row.id
      }
      // 解决猪舍、牧场已删除，但该页面仍不变问题
      this.$http({
        url: this.$http.adornUrl("/management/pasture/findAll"),
        method: "post"
      }).then(async ({ data }) => {
        if (data && data.code === 0) {
          this.pastureList = data.all
          // 获取猪舍
          let pighouseResult = await this.$http({
            url: this.$http.adornUrl('/management/pigsty/findAll'),
            method: 'post'
          })
          pighouseResult.data.all && (this.pighouseList = pighouseResult.data.all)
          this.phSelectedList = this.pighouseList
          console.log(this.pighouseList);
        }
      })
    },
    // 选择n个牧场
    selectionChangeHandle (val) {
      this.selectionDataList = []
      val.forEach(item => {
        this.selectionDataList.push(item.id)
      });
    },
    // 删除n个牧场
    deleteHandle (id) {
      this.$confirm(`确定删除单元？`, '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        // 删除操作
        if (id) {
          this.selectionDataList.push(id)
        }
        if (this.selectionDataList.length <= 0) {
          return
        }
        this.$http({
          url: this.$http.adornUrl('/management/unit/delete'),
          method: 'post',
          data: this.$http.adornData(this.selectionDataList, false)
        }).then(result => {
          console.log(result);
          if (result.data.code === 0) {
            this.resetForm()
            this.$message({
              message: '成功删除单元',
              type: 'success',
              duration: 1000
            })
            // pageIndex修正
            this.totalPage -= this.selectionDataList.length
            let pages = Math.ceil(this.totalPage / this.pageSize)
            this.pageIndex = this.pageIndex > pages? pages: this.pageIndex
            this.pageIndex = this.pageIndex < 1? pages: this.pageIndex
          } else {
            this.$message.error('删除单元失败');
          }
          this.selectionDataList = []
        })
      }).catch(() => {})
    },
    formSubmit () {
      if (this.form.id) {
        /** 修改 */
        // 输入是否完整
        if (!this.confirmComplete()) {
          return
        }
        // 输入是否合法
        if (!this.confirmInput()) {
          return
        }
        // 进行修改操作
        this.$http({
          url: this.$http.adornUrl('/management/unit/update'),
          method: 'post',
          data: this.$http.adornData({
            id: this.form.id,
            number: this.form.number,
            pastureId: this.form.pastureId,
            pigstyId: this.form.pigstyId
          })
        }).then(result => {
          if (result.data.code === 0) {
            // 新增pageIndex的修正
            this.totalPage++
            let pages = Math.ceil(this.totalPage / this.pageSize)
            this.pageIndex = this.pageIndex < pages? pages: this.pageIndex
            this.resetForm();
            this.visible = false;
            this.$message({
              message: '成功修改单元信息',
              type: 'success',
              duration: 1000
            })
          } else {
            if (result.data.code === 600) {
              let msg = result.data.msg.split('-')
              this.$message({
                message: `单元编号 <p style="color:#333; display:inline">${msg[0]}</p> 已经存在！`,
                type: "error",
                duration: 1000,
                dangerouslyUseHTMLString: true
              })
              return
            }
            this.$message.error('修改单元信息失败');
          }
        })
      } else {
        /** 新增 */
        // 输入是否完整
        if (!this.confirmComplete(1)) {
          return
        }
        // 输入是否合法
        if (!this.confirmInput()) {
          return
        }
        // 进行新增操作
        this.$http({
          url: this.$http.adornUrl('/management/unit/save'),
          method: 'post',
          data: this.$http.adornData({
            number: this.form.number,
            pastureId: this.form.pastureId,
            pigstyId: this.form.pigstyId
          })
        }).then(result => {
          if (result.data.code === 0) {
            this.resetForm();
            this.visible = false;
            this.$message({
              message: '成功添加单元',
              type: 'success',
              duration: 1000
            })
          } else {
            if (result.data.code === 600) {
              let msg = result.data.msg.split('-')
              this.$message({
                message: `单元编号 <p style="color:#333; display:inline">${msg[0]}</p> 已经存在！`,
                type: "error",
                duration: 1000,
                dangerouslyUseHTMLString: true
              })
              return
            }
            this.$message.error('添加失败');
          }
        })
      }
    },
    // 清空form
    resetForm () {
      for (let i in this.form) {
        this.form[i] = ''
      }
      this.getDataList()
    },
    // 取消
    cancel () {
      this.visible = false
      // 如果新增，则不保留form
      if (this.form.id) {
        this.resetForm()
      }
    },
    // 校验输入是否完整
    validComplete (val) {
      val && (delete this.form.id)
      console.log(this.form);
      for (let i in this.form) {
        if (!this.form[i].toString()) {
          return false
        }
      }
      return true
    },
    // 如不完整，则提示
    confirmComplete (val) {
      if (this.validComplete(val)) {
        return true
      }
      this.$confirm(`请输入完整`, '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        console.log('牧场输入不完整')
      }).catch(() => {})
      return false
    },
    // 校验输入是否合法，此处只校验单元序号
    validInput () {
      // 只允许中文、英文、数字、-、_的输入，取反
      const reg = /[^\a-\z\A-\Z0-9\u4E00-\u9FA5\_\-]/g
      if (reg.test(this.form.number)) {
        return false
      }
      return true
    },
    // 如不合法，则提示
    confirmInput () {
      if (this.validInput()) {
        return true
      }
      this.$confirm(`只允许输入中英文、数字、-与_`, '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        console.log('单元序号输入不合法')
      }).catch(() => {})
      return false
    },
    getchange (val) {
      console.log(val);
    },
    // 变色
    tableRowClassName({row, rowIndex}) {
      console.log(row);
      if (rowIndex%2 === 0) {
        return 'warning-row';
      }
      return '';
    }
  }
}
</script>
<style>
.el-table .warning-row {
  background: #f0f9ed;
}
</style>