<template>
    <!-- 表格公共组件 -->
    <div>
        <!-- 表单搜索 -->
        <el-form
            :inline="true"
            size="small"
            ref="queryFormRef"
            :rules="formRules"
            v-show="showSearch"
            :model="queryParams"
            label-width="auto"
        >
            <el-form-item
                :key="v"
                :prop="item.f_model"
                v-for="(item, v) in formLabel"
                :label="item.isShow ? item.f_label : ''"
            >
                <el-input
                    clearable
                    :maxlength="item.f_max || 50"
                    v-if="item.f_type === 'ipt'"
                    v-model.trim="queryParams[item.f_model]"
                    :placeholder="`请输入${item.f_label}`"
                    :style="{ width: item.f_width || '180px' }"
                />
                <el-select
                    clearable
                    filterable
                    v-if="item.f_type === 'sel'"
                    v-model="queryParams[item.f_model]"
                    :placeholder="`请选择${item.f_label}`"
                    :style="{ width: item.f_width || '180px' }"
                >
                    <el-option
                        :key="v"
                        :label="sel.label"
                        :value="sel.value"
                        v-for="(sel, v) in item.f_selList"
                    />
                </el-select>
                <el-cascader
                    clearable
                    style="width: 180px"
                    :show-all-levels="false"
                    :props="item.optionProps"
                    :options="item.f_selList"
                    v-if="item.f_type === 'selCasAdd'"
                    v-model="queryParams[item.f_model]"
                    @change="
                        handleCasAdd(
                            $event,
                            item.f_model,
                            cascadeFunc,
                            extraTableProp,
                        )
                    "
                />
                <el-cascader
                    style="width: 180px"
                    :show-all-levels="false"
                    :options="item.f_selList"
                    :props="item.optionProps"
                    v-if="item.f_type === 'selCas'"
                    v-model="queryParams[item.f_model]"
                    @change="handleCas($event, item.f_model)"
                />
                <el-date-picker
                    type="date"
                    style="width: 240px"
                    value-format="yyyy-MM-dd"
                    v-if="item.f_type === 'date'"
                    v-model="queryParams[item.f_model]"
                    :placeholder="`请选择${item.f_label}`"
                />
                <el-date-picker
                    type="daterange"
                    style="width: 240px"
                    range-separator="至"
                    value-format="yyyy-MM-dd"
                    start-placeholder="开始日期"
                    end-placeholder="结束日期"
                    v-if="item.f_type === 'dateRange'"
                    v-model="queryParams[item.f_model]"
                    @change="onChangeTime($event, item.dateType)"
                    :picker-options="pickerOptions"
                />
                <el-input-number
                    :min="0"
                    style="width: 240px"
                    v-if="item.f_type === 'num'"
                    v-model="queryParams[item.f_model]"
                />
            </el-form-item>
            <!-- 自定义搜索插槽：父组件可自行插入 el-form-item -->
            <slot name="form" :queryParams="queryParams"></slot>
            <el-form-item v-if="showBtnCrews">
                <el-button
                    v-if="showQueryButtons"
                    size="mini"
                    type="primary"
                    icon="el-icon-search"
                    @click="handleQuery"
                >
                    查询
                </el-button>
                <el-button
                    v-if="showQueryButtons"
                    plain
                    size="mini"
                    type="warning"
                    icon="el-icon-refresh"
                    @click="resetQuery"
                >
                    重置
                </el-button>

                <slot name="btn" :queryParams="queryParams"></slot>
            </el-form-item>
        </el-form>
        <!-- 按钮集群 -->
        <el-row class="btn-container">
            <ToolbarModel
                v-if="showRightTools"
                :columns="columnCheckList"
                @queryTable="getTableList"
                :showSearch.sync="showSearch"
                :handleShow.sync="handleShow"
                :indexNumShow.sync="indexNumShow"
                :selectionShow.sync="selectionShow"
                :isSelectShow="isSelectShow"
                :showOperation="showOperation"
            />
        </el-row>
        <!-- 表格 -->
        <el-table
            border
            ref="tableRef"
            :data="tableList"
            style="width: 100%"
            v-loading="loading"
            select-on-indeterminate
            @selection-change="handleSelectionChange"
        >
            <el-table-column
                width="45"
                align="center"
                type="selection"
                :selectable="selectable"
                v-if="selectionShow && isSelectShow"
            />
            <el-table-column
                fixed
                width="55"
                label="序号"
                type="index"
                align="center"
                :index="
                    (index) =>
                        (queryParams.pageNum - 1) * queryParams.pageSize +
                        index +
                        1
                "
                v-if="indexNumShow"
            />
            <el-table-column
                :key="v"
                align="center"
                :label="item.t_label"
                :prop="item.t_props"
                :width="item.t_width"
                show-overflow-tooltip
                v-for="(item, v) in tableColumCheckProps"
            >
                <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"
                :width="handleColWidth"
                :show-overflow-tooltip="false"
                fixed="right"
                v-if="handleShow && showOperation"
            >
                <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"
            @pagination="getTableList"
            :page.sync="queryParams.pageNum"
            :limit.sync="queryParams.pageSize"
        />
    </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: () => [],
        },
        // 传递的额外参数
        sendParams: {
            type: Object,
            default: () => null,
        },
        // 是否显示查询按钮 默认显示
        showBtnCrews: {
            type: Boolean,
            default: true,
        },
        // 是否显示查询/重置按钮（不影响插槽按钮） 默认显示
        showQueryButtons: {
            type: Boolean,
            default: true,
        },
        // 级联选择
        cascadeFunc: {
            type: Function,
            default: () => null,
        },
        // 级联选择 额外参数
        extraTableProp: {
            type: Object,
            default: () => null,
        },
        // 是否显示操作列 默认不显示
        showOperation: {
            type: Boolean,
            default: false,
        },
        // 是否显示右侧工具栏 默认不显示
        showRightTools: {
            type: Boolean,
            default: false,
        },

        // 复选框是否勾选
        selectable: {
            type: Function,
            default: () => {
                return true
            },
        },
        // 是否显示复选框 由父组件传递 默认不显示
        isSelectShow: {
            type: Boolean,
            default: false,
        },
        // 测试时使用的数据源
        testTableList: {
            type: Array,
            default: () => [],
        },
        // 是否显示当天日期
        isCurrentDate: {
            type: Boolean,
            default: false,
        },
        // 是否只可选择一个月的范围
        isOneMonth: {
            type: Boolean,
            default: false,
        },
    },
    computed: {
        /* 根据操作栏控制表头是否显示 */
        tableColumCheckProps() {
            return this.columnCheckList.filter((e) => {
                return e.checked != false
            })
        },
    },
    watch: {
        columnsList: {
            handler(nv, ov) {
                if (nv !== ov) {
                    this.columnsList = nv
                    this.columnCheckList = this.columnsList.map((e) => {
                        this.$set(e, 'checked', true)
                        return e
                    })
                }
            },
            deep: true,
        },
    },
    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: [],
            // 选中数据
            selectedData: [],
            // 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
            columnCheckList: [],
            // 操作列最小宽度
            dynamicWidth: 0,
            // 操作列固定宽度，防止列数过少导致过宽
            handleColWidth: 260,
            // 自增id
            idCount: 1,
            // 日期查询条件 字段名称
            typeList: [],

            // 日期选择器配置
            pickerOptions: {},
        }
    },

    created() {
        this.columnCheckList = this.columnsList.map((e) => {
            this.$set(e, 'checked', true)
            return e
        })
        /* 生成查询参数 */
        this.formLabel.map((e) => {
            if (e.f_type === 'dateRange') {
                this.$set(this.queryParams, e.dateType[0], '')
                this.$set(this.queryParams, e.dateType[1], '')
                this.typeList = e.dateType

                if (this.isOneMonth) {
                    this.pickerOptions = {
                        disabledDate: (time) => {
                            // 禁用今天之后的日期
                            return time.getTime() > Date.now()
                        },
                        onPick: ({ maxDate, minDate }) => {
                            // 当选择第一个日期后，设置第二个日期的可选范围
                            this.pickerOptions.minDate = minDate
                            if (minDate) {
                                const maxRangeDate = new Date(minDate)
                                maxRangeDate.setMonth(minDate.getMonth() + 1)
                                this.pickerOptions.maxDate = maxRangeDate
                            } else {
                                this.pickerOptions.maxDate = null
                            }
                        },
                    }
                }
            } else {
                this.$set(this.queryParams, e.f_model, '')
            }
        })
        if (this.sendParams !== null) {
            for (let key in this.sendParams) {
                this.$set(this.queryParams, key, this.sendParams[key])
            }
        }
        this.getTableList()
    },
    updated() {
        // 若需要自适应最小宽度，可启用下行；当前使用固定宽度 handleColWidth
        this.dynamicWidth = this.getOperatorWidth()
    },
    methods: {
        /** 获取列表数据 */
        async getTableList() {
            try {
                if (
                    this.queryParams.time &&
                    this.queryParams.time.length !== 0
                ) {
                    this.queryParams[this.typeList[0]] =
                        this.queryParams.time[0]
                    this.queryParams[this.typeList[1]] =
                        this.queryParams.time[1]
                }

                const params = { ...this.queryParams }
                const queryParams = JSON.parse(JSON.stringify(params))
                delete queryParams.time // 剔除无关参数
                // console.log(
                //     `%c🔍 列表查询入参 %c`,
                //     'background: linear-gradient(90deg, #FF6B6B, #4ECDC4); color: white; padding: 5px 10px; border-radius: 5px; font-weight: bold;',
                //     '',
                //     queryParams,
                // )
                this.loading = true
                const res = await this.requestApi(queryParams)
                if (res.code === 200) {
                    this.tableList = res.rows
                    this.total = res.total
                }
                this.loading = false
            } catch (error) {
                this.loading = false
                this.tableList = this.testTableList
            }
        },
        /** 查询按钮 */
        handleQuery() {
            this.getTableList()
        },

        /** 重置按钮 */
        resetQuery() {
            this.$refs.queryFormRef.resetFields()
            if (this.typeList.length > 1) {
                if (this.isCurrentDate) {
                    this.queryParams[this.typeList[0]] = new Date()
                        .toISOString()
                        .split('T')[0]
                    this.queryParams[this.typeList[1]] = new Date()
                        .toISOString()
                        .split('T')[0]
                    this.queryParams.time = [
                        new Date().toISOString().split('T')[0],
                        new Date().toISOString().split('T')[0],
                    ]
                } else {
                    this.queryParams[this.typeList[0]] = ''
                    this.queryParams[this.typeList[1]] = ''
                    this.queryParams.time = []
                }
            } else {
                this.queryParams[this.typeList[0]] = ''
            }
            this.queryParams.pageNum = 1
            this.queryParams.pageSize = 10
            this.getTableList()
        },
        /** 级联选择 */
        handleCas(e, val) {
            this.queryParams[val] = e[e.length - 1]
        },
        /** 级联选择只选最后一级 */
        handleCasAdd(e, val, func, prop) {
            if (e.length !== 0) {
                this.queryParams[val] = e[e.length - 1]
                let setObj = {}
                // 合并
                if (prop) {
                    Object.assign(setObj, prop)
                }
                // 设置id自增
                this.$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 + 10
            }
        },

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

        handleSelectionChange(e) {
            this.selectedData = e
        },

        /* 时间change事件 */
        onChangeTime(e, type) {
            if (this.isOneMonth) {
                if (e && e.length === 2) {
                    const [start, end] = e
                    const startDate = new Date(start)
                    const endDate = new Date(end)
                    // 计算两个日期之间的天数差
                    const diffTime = Math.abs(endDate - startDate)
                    const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24))
                    // 如果超过31天，自动调整结束日期
                    if (diffDays > 31) {
                        const newEndDate = new Date(startDate)
                        newEndDate.setDate(startDate.getDate() + 31)
                        this.queryParams.time = [
                            start,
                            newEndDate.toISOString().split('T')[0],
                        ]
                        this.$message.warning(
                            '选择的时间范围超过31天，查询将会缓慢，已自动调整',
                        )
                    }
                }
            } else {
                const [_1, _2] = type
                const [_time1, _time2] = e
                if (e.length > 0) {
                    this.queryParams[_1] = _time1
                    this.queryParams[_2] = _time2
                }
            }
        },
    },

    watch: {
        sendParams: {
            handler(nv, ov) {
                if (nv) {
                    for (let key in nv) {
                        this.$set(this.queryParams, key, this.sendParams[key])
                    }
                }
            },
            deep: true,
        },
    },
}
</script>

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

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

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

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