<template>
    <!-- 表格公共组件 -->
    <div>
        <!-- 表单搜索 -->
        <el-form
            :model="queryParams"
            ref="queryFormRef"
            size="small"
            :inline="true"
            label-width="100px"
            v-show="showSearch"
            :rules="formRules"
        >
            <el-form-item
                v-for="(item, v) in formLabel"
                :key="v"
                :label="item.f_label"
                :prop="item.f_model"
            >
                <el-input
                    v-if="item.f_type === 'ipt'"
                    v-model="queryParams[item.f_model]"
                    :placeholder="`请输入${item.f_label}`"
                    clearable
                    style="width: 240px"
                />
                <el-select
                    v-if="item.f_type === 'sel'"
                    v-model="queryParams[item.f_model]"
                    clearable
                    filterable
                    style="width: 240px"
                    :placeholder="`请选择${item.f_label}`"
                >
                    <el-option
                        v-for="(sel, v) in item.f_selList"
                        :key="v"
                        :label="sel.label"
                        :value="sel.value"
                    />
                </el-select>
                <el-cascader
                    v-if="item.f_type === 'selCasAdd'"
                    v-model="queryParams[item.f_model]"
                    :options="item.f_selList"
                    :props="item.optionProps"
                    :show-all-levels="false"
                    clearable
                    @change="handleCasAdd($event, item.f_model, cascaderFunc, extraTableProp)"
                    style="width: 240px"
                />
                <el-cascader
                  v-if="item.f_type === 'selCas'"
                  v-model="queryParams[item.f_model]"
                  :options="item.f_selList"
                  :props="item.optionProps"
                  :show-all-levels="false"
                  @change="handleCas($event, item.f_model)"
                  style="width: 240px"
                />
                <el-date-picker
                    v-if="item.f_type === 'date'"
                    v-model="queryParams[item.f_model]"
                    style="width: 240px"
                    value-format="yyyy-MM-dd"
                    type="date"
                />
                <el-date-picker
                  v-if="item.f_type === 'dateRange'"
                  v-model="queryParams[item.f_model]"
                  style="width: 240px"
                  type="daterange"
                  value-format="yyyy-MM-dd"
                  range-separator="至"
                  start-placeholder="开始日期"
                  end-placeholder="结束日期"
                />
                <el-input-number
                  v-if="item.f_type === 'num'"
                  v-model="queryParams[item.f_model]"
                  :min="0"
                  style="width: 240px"
                ></el-input-number>
            </el-form-item>
            <el-form-item v-if="showBtnCrews">
                <el-button
                    type="primary"
                    icon="el-icon-search"
                    size="mini"
                    @click="handleQuery"
                    v-if="showSearchBtn"
                    >查询</el-button
                >
                <el-button
                    type="success"
                    icon="el-icon-edit"
                    size="mini"
                    @click="handleFill"
                    v-if="!showSearchBtn"
                    >填充</el-button
                >
                <el-button
                    type="warning"
                    icon="el-icon-refresh"
                    size="mini"
                    @click="resetQuery"
                    >重置</el-button
                >
            </el-form-item>
        </el-form>
        <!-- 按钮集群 -->
        <el-row class="btn-container" v-if="showRightTools">
            <div class="btn-handler">
                <slot name="btn" :queryParams="queryParams"></slot>
            </div>
            <ToolbarModel
                :showSearch.sync="showSearch"
                :indexNumShow.sync="indexNumShow"
                :selectionShow.sync="selectionShow"
                :handleShow.sync="handleShow"
                :columns="columCheckList"
                @queryTable="getTableList"
            />
        </el-row>
        <!-- 表格 -->

        <el-table
            :data="tableList"
            border
            ref="tableRef"
            select-on-indeterminate
            style="width: 100%"
            v-loading="loading"
            @selection-change="handleSelectionChange">
        >
            <el-table-column
                type="selection"
                width="45"
                align="center"
                v-if="showSel"
                :selectable="selectable"
            />
            <el-table-column
                width="55"
                align="center"
                label="序号"
                type="index"
                :index="
                    indexContinuation(queryParams.pageNum, queryParams.pageSize)
                "
                v-if="indexNumShow"
            />
            <el-table-column
                v-for="(item, v) in tableColumCheckProps"
                :key="v"
                :label="item.t_label"
                :prop="item.t_props"
                :width="item.t_width"
                align="center"
                show-overflow-tooltip
            >
                <template slot-scope="scope">
                    <!-- 判断当前列数据是否需要使用插槽的数据 -->
                    <template v-if="item.t_slot">
                        <slot :data="scope.row" :name="item.t_slot"></slot>
                    </template>
                    <template v-else>
                        {{ scope.row[item.t_props] || '-' }}
                    </template>
                </template>
            </el-table-column>
            <el-table-column
                align="center"
                label="操作"
                v-if="handleShow && showOperation"
                :min-width="dynamicWidth"
            >
                <template slot-scope="{ row }">
                    <div class="optionDivRef">
                        <slot :data="row" name="handle">-</slot>
                    </div>
                </template>
            </el-table-column>
        </el-table>

        <!-- 分页 -->
        <pagination
            :total="total"
            :page.sync="queryParams.pageNum"
            :limit.sync="queryParams.pageSize"
            @pagination="getTableList"
        />
    </div>
</template>

<script>
import ToolbarModel from '../ToolbarModel'
export default {
    components: { ToolbarModel },
    props: {
        /** 表单查询条件 */
        formLabel: {
            type: Array,
            default: () => [],
        },
        /** 列表请求接口 */
        requestApi: {
            type: Function,
            default: () => function () {},
        },
        /** 列表配置项 */
        columnsList: {
            type: Array,
            default: () => [],
        },
        /** 是否显示选择框 */
        showSel: {
            type: Boolean,
            default: true,
        },
        /** 传递参数 */
        sendParams: {
          type: Object,
          default: () => null
        },
        /** 是否显示查询按钮 */
        showSearchBtn: {
          type: Boolean,
          default: true,
        },
        showBtnCrews: {
          type: Boolean,
          default: true,
        },
        cascaderFunc: {
          type: Function,
          default: () => null
        },
        extraTableProp: {
          type: Object,
          default: () => null
        },
        showOperation: {
          type: Boolean,
          default: true
        },
        showRightTools: {
          type: Boolean,
          default: true
        },
        selectable: {
          type: Function,
          default: () => {
            return true
          }
        }
    },
    computed: {
        /* 根据操作栏控制表头是否显示 */
        tableColumCheckProps() {
            return this.columCheckList.filter(e => {
                return e.checked != false
            })
        },
    },
    watch: {
        handleShow: {
            handler(newValue) {
                if (!newValue) {
                    this.dynamicWidth = 0
                }
            },
        },
    },
    data() {
        return {
            // 表单校验
            formRules: {

            },
            loading: false,
            // 列表接口查询参数
            queryParams: {
                pageNum: 1,
                pageSize: 10,
            },
            // 列表数据源
            tableList: [],
            // 导出传递数据
            msgList: undefined,
            // 列表数据条数
            total: 0,
            // 搜索区域是否隐藏
            showSearch: true,
            // 是否显示复选框
            selectionShow: true,
            // 是否显示序号
            indexNumShow: true,
            // 是否显示操作列
            handleShow: true,
            // 列表每列 label
            columCheckList: [],
            // 操作列最小宽度
            dynamicWidth: 0,
            idCount: 1
        }
    },

    created() {
        console.log(this.sendParams, 'table')
        this.columCheckList = this.columnsList.map(e => {
            this.$set(e, 'checked', true)
            return e
        })
        /* 生成查询参数 */
        this.formLabel.map(e => {
            this.$set(this.queryParams, e.f_model, '')
            // 设置表单必填
            if(e.f_rule) {
              this.$set(this.formRules, e.f_rule, [
                {
                  required: true,
                  message: `请填写${e.f_label}`,
                  trigger: 'blur'
                }
              ])
            }
        })
        if(this.sendParams !== null) {
          Object.assign(this.queryParams, this.sendParams)
          /* for(let key in this.sendParams) {
            console.log(key, this.sendParams[key])
            this.$set(this.queryParams, key, this.sendParams[key])
          } */
        }
        this.getTableList()
    },
    updated() {
        // 更新时重新计算操作列需要的最小宽度 确保展示无误
        this.dynamicWidth = this.getOperatorWidth()
    },
    methods: {
        /** 获取列表数据 */
        async getTableList() {
          if(this.queryParams.time && this.queryParams.time.length !== 0) {
            this.queryParams.startTime = this.queryParams.time[0]
            this.queryParams.endTime = this.queryParams.time[1]
            delete this.queryParams.time
          }
          console.log(this.queryParams)
          if(Object.keys(this.formRules).length !== 0) {
            this.$refs.queryFormRef.validate(async valid => {
              if (valid) {
                this.loading = true
                const res = await this.requestApi(this.queryParams)
                this.loading = false
                console.log(res, '列表数据')
                if (res.code === 200) {
                  if (res.data) {
                    this.tableList = res.data.rows
                    this.total = res.data.total
                  } else {
                    this.tableList = res.rows
                    this.total = res.total
                  }
                }
              }
            })
          } else {
            this.loading = true
            const res = await this.requestApi(this.queryParams)
            this.loading = false
            console.log(res, '列表数据')
            if (res.code === 200) {
              if (res.data) {
                this.tableList = res.data.rows
                this.total = res.data.total
              } else {
                this.tableList = res.rows
                this.total = res.total
              }
            }
          }
        },
        /** 查询按钮 */
        handleQuery() {
            this.getTableList()
        },
        /** 填充按钮 */
        handleFill() {
          /* this.tableList.forEach(obj => {
            Object.assign(obj, this.formLabel)
          }) */
        },
        /** 重置按钮 */
        resetQuery() {
            this.$refs.queryFormRef.resetFields()
            this.queryParams.pageNum = 1
            this.queryParams.pageSize = 10
            this.getTableList()
        },
        /** 级联选择 */
        handleCas(e, val) {
          this.queryParams[val] = e[e.length - 1]
        },
        /** 级联选择只选最后一级 */
        handleCasAdd(
          e,
          val,
          func,
          prop
        ) {
          if(e.length !== 0) {
            this.queryParams[val] = e[e.length - 1]
            let setObj = {}
            // 合并
            if(prop) {
              Object.assign(setObj, prop)
            }
            // 设置id自增
            this.$set(setObj, 'id', this.idCount)
            this.idCount++
            // 获取单位
            func({
              id: e[e.length - 1]
            }).then(res => {
              this.$set(setObj, 'name', res.data.parentName)
              this.$set(setObj, 'unitName', res.data.unitName)
              this.$set(setObj, 'typeName', res.data.name)
            }).catch(err => {})
            for(let key in this.queryParams) {
              this.$set(setObj, key, this.queryParams[key])
            }
            this.tableList.unshift(setObj)
            console.log(this.tableList)
          }
        },
        /** 动态设置操作列的列宽 */
        getOperatorWidth() {
            const operatorColumn =
                document.getElementsByClassName('optionDivRef')

            // 默认宽度
            let width = 100
            // 内间距
            let paddingSpacing = 0
            // 按钮数量
            let buttonCount = 0

            if (operatorColumn.length > 0) {
                Array.prototype.forEach.call(operatorColumn, function (item) {
                    // 最宽的宽度
                    width = width > item.offsetWidth ? width : item.offsetWidth
                    const buttons = item.getElementsByClassName('el-button')
                    buttonCount = buttons.length
                    buttonCount =
                        buttonCount > buttons.length
                            ? buttonCount
                            : buttons.length
                })
                return width
            }
        },

        queryTableList(params) {
          Object.assign(this.queryParams, params)
          this.getTableList()
        },

        handleSelectionChange(e) {
          this.msgList = e
          this.$emit('transIdList', this.msgList)
        },

    },
}
</script>

<style scoped lang="scss">
.btn-container {
    margin-bottom: 6px;
    display: flex;
    align-items: center;
}
::v-deep .btn-handler {
    flex: 1;

    .el-button {
        padding: 6px 18px;
    }
}

::v-deep .optionDivRef {
    white-space: nowrap;
    display: inline-block;

    .el-button {
        padding: 6px 12px;
    }
}
</style>
