<template>
  <table-box ref="table"
    style="height: 100%;"
    :data="dataList"
    :key="tableKey"
    show-overflow="title"
    show-header-overflow="title"
    class="draggable-widget"
    header-cell-class-name="table-header-gray"
    :hasImageColumn="hasImageColumn"
    :size="defaultFormItemSize"
    :keep-source="rowEdit"
    :edit-config="{trigger: 'manual', mode: 'row', enabled: rowEdit, showIcon: false, autoClear: false, showStatus: true}"
    :edit-closed="onSaveRowData"
    :seq-config="{seqMethod}"
    :hasExtend="hasExtend"
    @sort-change="onSortChange"
    @checkbox-select-change="onCheckBoxChange"
    @radio-select-change="onRadioSelectChange"
    :sort-config="{remote: remoteSort}"
    @refresh="onRefresh"
  >
    <template v-if="operationList.filter(row => { return row.enabled && !row.rowOperation }).length > 0 && !form().readOnly">
      <el-button slot="operator" v-if="operationVisible(SysCustomWidgetOperationType.BATCH_DELETE)" :size="defaultFormItemSize"
        :type="getOperation(SysCustomWidgetOperationType.BATCH_DELETE).btnType"
        :plain="getOperation(SysCustomWidgetOperationType.BATCH_DELETE).plain"
        :disabled="operationDisabled(SysCustomWidgetOperationType.BATCH_DELETE)"
        @click="onOperationClick(getOperation(SysCustomWidgetOperationType.BATCH_DELETE))"
        icon="el-icon-delete"
      >{{getOperation(SysCustomWidgetOperationType.BATCH_DELETE).name || '批量删除'}}</el-button>
      <el-button slot="operator" v-if="operationVisible(SysCustomWidgetOperationType.EXPORT)" :size="defaultFormItemSize"
        :type="getOperation(SysCustomWidgetOperationType.EXPORT).btnType"
        :plain="getOperation(SysCustomWidgetOperationType.EXPORT).plain"
        :disabled="operationDisabled(SysCustomWidgetOperationType.EXPORT)"
        @click="onOperationClick(getOperation(SysCustomWidgetOperationType.EXPORT))"
        icon="el-icon-download"
      >{{getOperation(SysCustomWidgetOperationType.EXPORT).name || '导出'}}</el-button>
      <el-button slot="operator" v-if="operationVisible(SysCustomWidgetOperationType.PRINT)" :size="defaultFormItemSize"
        :type="getOperation(SysCustomWidgetOperationType.PRINT).btnType"
        :plain="getOperation(SysCustomWidgetOperationType.PRINT).plain"
        :disabled="operationDisabled(SysCustomWidgetOperationType.PRINT)"
        @click="onOperationClick(getOperation(SysCustomWidgetOperationType.PRINT))"
      >{{getOperation(SysCustomWidgetOperationType.PRINT).name || '打印'}}</el-button>
      <el-button slot="operator" v-if="operationVisible(SysCustomWidgetOperationType.ADD)" :size="defaultFormItemSize"
        :type="getOperation(SysCustomWidgetOperationType.ADD).btnType"
        :plain="getOperation(SysCustomWidgetOperationType.ADD).plain"
        :disabled="operationDisabled(SysCustomWidgetOperationType.ADD)"
        @click="onOperationClick(getOperation(SysCustomWidgetOperationType.ADD))"
        icon="el-icon-plus"
      >{{getOperation(SysCustomWidgetOperationType.ADD).name || '新建'}}</el-button>
    </template>
    <slot slot="operator" name="operator" />
    <vxe-column v-if="hasBatchOperation && !form().readOnly" type="checkbox" :width="40" />
    <vxe-column v-if="singleSelect" type="radio" align="center" :width="50" />
    <vxe-column v-if="tableColumnList.length > 0" type="seq" title="序号" :width="50" />
    <template v-for="tableColumn in tableColumnList">
      <!-- Boolean类型字段 -->
      <vxe-column v-if="tableColumn.column && tableColumn.column.objectFieldType === 'Boolean'" :key="tableColumn.columnId"
        :title="tableColumn.showName"
        :width="tableColumn.columnWidth"
      >
        <template #default="{ row }">
          <el-tag :size="defaultFormItemSize" :type="row[tableColumn.showFieldName] ? 'success' : 'danger'">
            {{row[tableColumn.showFieldName] ? '是' : '否'}}
          </el-tag>
        </template>
      </vxe-column>
      <!-- 图片类型字段 -->
      <vxe-column v-else-if="tableColumn.column && tableColumn.column.fieldKind === SysOnlineFieldKind.UPLOAD_IMAGE" :key="tableColumn.columnId"
        :title="tableColumn.showName"
        :width="tableColumn.columnWidth"
      >
        <template #default="{ row }">
          <el-image
            v-for="item in parseTableUploadData(tableColumn, row)"
            :preview-src-list="getTablePictureList(tableColumn, row)"
            class="table-cell-image" :key="item.url" :src="item.url" fit="fill">
            <div slot="error" class="table-cell-image">
              <i class="el-icon-picture-outline"></i>
            </div>
          </el-image>
        </template>
      </vxe-column>
      <!-- 文件下载类型字段 -->
      <vxe-column v-else-if="tableColumn.column && tableColumn.column.fieldKind === SysOnlineFieldKind.UPLOAD" :key="tableColumn.columnId"
        :title="tableColumn.showName"
        :width="tableColumn.columnWidth"
      >
        <template #default="{ row }">
          <a v-for="item in parseTableUploadData(tableColumn, row)"
            :key="item.url" href="javascript:void(0);" @click="downloadFile(item.url, item.name)">
            {{item.name}}
          </a>
        </template>
      </vxe-column>
      <!-- 其他类型 -->
      <vxe-column v-else :key="tableColumn.columnId"
        :title="tableColumn.showName"
        :field="tableColumn.showFieldName"
        :width="tableColumn.columnWidth"
        :sortable="tableColumn.sortable"
      />
    </template>
    <vxe-column title="操作" :width="widget.props.operationColumnWidth || 160" fixed="right"
      :show-overflow="false"
      v-if="(rowEdit || tableOperationList.length > 0) && tableColumnList.length > 0"
    >
      <template #default="{ row }">
        <el-button v-for="operation in tableOperationList" :key="operation.id"
          v-show="form().checkOperationVisible(operation, row)"
          :size="defaultFormItemSize"
          type="text"
          :class="operation.btnClass"
          :plain="operation.plain"
          :disabled="!form().checkOperationPermCode(operation) || form().checkOperationDisabled(operation, row)"
          @click="onOperationClick(operation, row)"
        >
          {{operation.name}}
        </el-button>
      </template>
    </vxe-column>
    <template slot="empty">
      <div class="table-empty unified-font">
        <img src="@/assets/img/empty.png">
        <span>暂无数据</span>
      </div>
    </template>
    <slot slot="pagination" name="pagination" />
  </table-box>
</template>

<script>
import { findItemFromList } from '@/utils';
import { uploadMixin } from '@/core/mixins';

export default {
  name: 'OnlineCustomTable',
  props: {
    dataList: {
      type: Array,
      default: () => []
    },
    height: {
      type: [String, Number],
      default: 'auto'
    },
    border: {
      type: String,
      default: 'full'
    },
    // 是否支持行内编辑
    rowEdit: {
      type: Boolean,
      default: false
    },
    // 是否支持多选
    multiSelect: {
      type: Boolean,
      default: false
    },
    // 是否支持单选
    singleSelect: {
      type: Boolean,
      default: false
    },
    // 表格操作列表
    operationList: {
      type: Array,
      default: () => []
    },
    widget: {
      type: Object
    },
    // 获取行序号
    getTableIndex: {
      type: Function
    },
    // 排序改变
    sortChange: {
      type: Function
    },
    // 多选选中改变
    onSelectChange: {
      type: Function
    },
    // 单选中改变
    onRadioChange: {
      type: Function
    }
  },
  inject: ['form'],
  mixins: [uploadMixin],
  data () {
    return {
      editInfo: {
        editRow: undefined
      },
      sortInfo: undefined
    }
  },
  methods: {
    onRefresh () {
      this.$emit('refresh');
    },
    hasOperator (type) {
      let temp = this.getOperation(type);
      return temp && temp.enabled;
    },
    getOperation (type) {
      return findItemFromList(this.operationList, type, 'type');
    },
    operationVisible (type) {
      let operation = this.getOperation(type);
      return !this.form().readOnly && this.hasOperator(type) && this.form().checkOperationVisible(operation);
    },
    operationDisabled (type) {
      let operation = this.getOperation(type);
      return this.form().checkOperationDisabled(operation) || !this.form().checkOperationPermCode(operation);
    },
    seqMethod (data) {
      if (this.getTableIndex) {
        return this.getTableIndex(data.seq - 1);
      } else {
        return data.seq;
      }
    },
    onSortChange (data) {
      if (!this.widget.props.paged) return;
      let fieldName = data.property.replace('DictMap.name', '');
      let order = data.order;
      if (order == null) {
        fieldName = undefined;
      }
      if (order === 'asc') order = 'ascending';
      if (this.sortInfo != null && this.sortInfo.prop === fieldName && this.sortInfo.order === order) {
        return;
      }
      this.sortInfo = {
        prop: fieldName,
        order: order
      }
      if (this.sortChange) {
        this.sortChange(this.sortInfo)
      }
    },
    onCheckBoxChange () {
      if (this.$refs.table && typeof this.onSelectChange === 'function') {
        let selectRows = this.$refs.table.getTableImpl().getCheckboxRecords(true);
        this.onSelectChange(selectRows);
      }
    },
    onRadioSelectChange () {
      if (this.$refs.table && typeof this.onRadioChange === 'function') {
        let selectRow = this.$refs.table.getTableImpl().getRadioRecord();
        this.onRadioChange(selectRow);
      }
    },
    setSelectedRow (rowNum) {
      this.$refs.table.getTableImpl().setRadioRow(this.dataList[rowNum]);
      this.$nextTick(this.onRadioSelectChange);
    },
    // 取消行内编辑
    cancelRowEvent (row) {
      if (this.form().isEdit) return;
      this.$refs.table.getTableImpl().clearActived().then(() => {
        // 还原行数据
        this.$refs.table.getTableImpl().revertData(row);
        this.editInfo.editRow = undefined;
      }).catch(e => {});
    },
    // 启动行内编辑
    editRowEvent (row) {
      if (this.form().isEdit) return;
      this.$refs.table.getTableImpl().setEditRow(row);
      this.editInfo.editRow = row;
    },
    // 保存行内编辑数据
    saveRowEvent (row) {
      if (this.form().isEdit) return;
      this.$refs.table.getTableImpl().clearActived().then(() => {
        this.$refs.table.getTableImpl().reloadRow(row);
        this.editInfo.editRow = undefined;
      });
    },
    onSaveRowData ({ row }) {
      // console.log(row);
    },
    // 新建行内编辑数据
    addRowEvent (row) {
      if (this.form().isEdit) return;
      this.$refs.table.getTableImpl().insertAt(row, 0).then(res => {
        let newRow = res.row;
        this.$refs.table.getTableImpl().setEditRow(newRow);
      });
    },
    // 删除行数据
    deleteRowEvent (row) {
      if (this.form().isEdit) return;
      this.$emit('delete', row);
    },
    onOperationClick (operation, row) {
      this.$emit('operationClick', operation, row);
    },
    refreshColumn () {
      this.$nextTick(() => {
        if (this.$refs.table) this.$refs.table.getTableImpl().refreshColumn();
      });
    },
    getDownloadUrl (tableColumn) {
      let downloadUrl = null;
      if (this.form().flowData != null) {
        downloadUrl = '/admin/flow/flowOnlineOperation/download';
      } else {
        if (tableColumn.relationId) {
          downloadUrl = '/admin/online/onlineOperation/downloadOneToManyRelation/' + (this.widget.datasource || {}).variableName;
        } else {
          downloadUrl = '/admin/online/onlineOperation/downloadDatasource/' + (this.widget.datasource || {}).variableName;
        }
      }

      return downloadUrl;
    },
    parseTableUploadData (tableColumn, row) {
      let jsonData = row[tableColumn.showFieldName];
      if (jsonData == null) return [];
      let downloadParams = {
        ...this.buildFlowParam,
        datasourceId: this.widget.datasource.datasourceId,
        relationId: tableColumn.relationId,
        fieldName: tableColumn.column.columnName,
        asImage: tableColumn.column.fieldKind === this.SysOnlineFieldKind.UPLOAD_IMAGE
      }

      if (this.widget.primaryColumnName != null) {
        downloadParams.dataId = row[this.widget.primaryColumnName] || '';
      }

      let downloadUrl = this.getDownloadUrl(tableColumn);

      let temp = JSON.parse(jsonData);
      temp = Array.isArray(temp) ? temp.map(item => {
        return {
          ...item,
          downloadUri: downloadUrl
        }
      }) : [];
      return this.parseUploadData(JSON.stringify(temp), downloadParams);
    },
    getTablePictureList (tableColumn, row) {
      let temp = this.parseTableUploadData(tableColumn, row);
      if (Array.isArray(temp)) {
        return temp.map(item => item.url);
      }
    },
    formatListData (data) {
      Object.keys(data).forEach(key => {
        let subData = data[key];
        if (typeof subData === 'object' && key.indexOf('DictMap') === -1) {
          this.formatListData(subData);
        } else {
          // 如果是多选字典字段，那么把选中的字典值拼接成DictMap去显示
          if (key.indexOf('DictMapList') !== -1 && Array.isArray(data[key])) {
            let newKey = key.replace('DictMapList', 'DictMap');
            data[newKey] = {
              id: data[key.replace('DictMapList', '')],
              name: data[key].map(subItem => subItem.name).join(',')
            }
          }
        }
      });
    }
  },
  computed: {
    buildFlowParam () {
      let flowParam = {};
      let flowData = this.form().flowData;
      if (flowData) {
        if (flowData.processDefinitionKey) flowParam.processDefinitionKey = flowData.processDefinitionKey;
        if (flowData.processInstanceId) flowParam.processInstanceId = flowData.processInstanceId;
        if (flowData.taskId) flowParam.taskId = flowData.taskId;
      }

      return flowParam;
    },
    tableColumnList () {
      let tempList = (this.widget && this.widget.props && Array.isArray(this.widget.props.tableColumnList)) ? this.widget.props.tableColumnList : [];
      tempList.forEach(item => {
        if (item.fieldType === 0 || item.fieldType == null) {
          // 绑定表字段
          if (item.column) item.showFieldName = item.column.columnName;
          if (this.widget.relation == null && item.relation != null) {
            item.showFieldName = item.relation.variableName + '.' + item.showFieldName
          }
          if (item.column && item.column.dictInfo) {
            item.showFieldName = item.showFieldName + 'DictMap.name';
          }
        } else {
          // 自定义字段
          item.showFieldName = item.customFieldName;
        }
      });
      return tempList;
    },
    tableOperationList () {
      return this.operationList.filter(item => {
        let temp = item.enabled && item.rowOperation;
        if (temp && this.form().readOnly) {
          temp = temp && item.readOnly;
        }
        return temp;
      });
    },
    hasBatchOperation () {
      let batchDeleteOperation = findItemFromList(this.operationList, this.SysCustomWidgetOperationType.BATCH_DELETE, 'type');
      let printOperation = findItemFromList(this.operationList, this.SysCustomWidgetOperationType.PRINT, 'type');
      return (batchDeleteOperation != null && batchDeleteOperation.enabled) || (printOperation != null && printOperation.enabled && !printOperation.rowOperation);
    },
    hasImageColumn () {
      return this.tableColumnList.filter(tableColumn => {
        return tableColumn.column && tableColumn.column.fieldKind === this.SysOnlineFieldKind.UPLOAD_IMAGE;
      }).length > 0;
    },
    tableKey () {
      return (this.widget || {}).variableName + new Date().getTime() + this.tableColumnList.length;
    },
    remoteSort () {
      return this.widge ? (this.widget.props || {}).paged : false;
    },
    hasExtend () {
      return (this.operationList.filter(row => { return row.enabled && !row.rowOperation }).length > 0 && !this.form().readOnly) || (this.$slots.operator != null);
    }
  },
  watch: {
    dataList: {
      handler () {
        if (Array.isArray(this.dataList)) {
          this.dataList.forEach(item => {
            this.formatListData(item);
          });
        }
      },
      immediate: true
    },
    tableColumnList: {
      handler () {
        this.refreshColumn();
      },
      immediate: true
    },
    'widget.props.operationColumnWidth': {
      handler () {
        this.refreshColumn();
      }
    }
  }
}
</script>

<style>
</style>
