<template>
    <div class="app-container app-container-bg">
        <el-card class="first-card" ref='firstCard' shadow="always">
            <el-form :model="queryParams" ref="queryForm" :inline="true" @submit.native.prevent>
                <el-form-item label="选择站点">
                    <ESelectSingle ref="eSelectSingle" :stationType="stationType" @stationChange="handleStationChange" @loadingChange="handleStationLoading" />
                </el-form-item>
                <el-form-item label="年份">
                    <el-date-picker v-model="queryParams.year" type="year" value-format="YYYY" placeholder="选择年" :clearable="false">
                    </el-date-picker>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
                    <el-button type="warning" icon="Download" @click="handleExport">下载</el-button>
                </el-form-item>
            </el-form>
        </el-card>

        <div class="el-card-p card-shadow carder-border mt10 pad10 " style="max-width: 100%; overflow-x: hidden;">
            <div class="main-table-header" style="width: 70%;margin:0 auto">
                <div class="table-title">{{tableTitle}}</div>
                <div class="table-time mb5">
                    <div>
                        <span>年份: </span><span id="title1">{{queryParams.year }}</span>
                    </div>
                    <div>
                        <span>测站编码: </span><span id="title2">00</span>
                    </div>
                    <div>
                        <span>单位: </span><span id="title3">降水量(mm)</span>
                    </div>
                </div>
            </div>

            <el-table class="report-table merge-header" v-table-height="{bottom:130}" v-loading="loading" :data="tableData" style="width: 1200px;margin:0 auto" :table-layout="tableLayout" :span-method="arraySpanMethod">
                <el-table-column prop="value" :align="alignment">
                    <el-table-column prop="date" width="40" :align="alignment" />
                    <el-table-column prop="yueTotal" width="40" :align="alignment" />
                    <template #header>
                        <div class="diagonal-header">
                            <svg class="diagonal-line" viewBox="0 0 100 100" preserveAspectRatio="none">
                                <line x1="0" y1="0" x2="100" y2="100" stroke="#000" stroke-width="1" />
                            </svg>
                            <div class="header-month">月份</div>
                            <div class="header-date">日期</div>
                        </div>
                    </template>

                </el-table-column>
                <el-table-column  v-for="(item, index) in columnData" :key="index" :label="item.label" :align="alignment" :prop="item.prop">
                </el-table-column>
            </el-table>
            <div style="width: 60%;margin:0 auto"> 备注：表格中 ' / '表示该日期整天缺测，其余缺测日期为部分缺测。 </div>

        </div>
    </div>
</template>
<script setup>
    import dayjs from 'dayjs';
    import singleStation from '@/components/SingleStation/index.vue'
    import ESelectSingle from '@/components/ESelectSingle/index.vue'
    import { ref, reactive, onMounted } from 'vue';

    const props = defineProps({
        tableTitle: {
            type: String,
            default: '表格标题'
        },

    })

    const { proxy } = getCurrentInstance()
    const alignment = 'center'
    const stationType = 'A'
    const tableLayout = ref('fixed')
    const singleStationRef = ref(null)
    const handleStationLoading = (loadingState) => {
        loading.value = loadingState;
    }
    // 新增处理站点变化的函数
    const handleStationChange = (stnmId) => {
        console.log(stnmId, '===新增处理站点变化的函数')
        queryParams.stnmId = stnmId
        if (stnmId == undefined) {
            proxy.$modal.msgWarning("请选择站点后查询");
            return
        } else {
            getList()
        }
    }

    const loading = ref(false);
    const tableData = ref([]);
    const queryParams = reactive({
        year: dayjs(new Date()).format('YYYY')
    });
    const getList = async () => {
        loading.value = true;
        try {
            const res = await proxy.axiosGet('/report/zrjsldata', queryParams)
            if (res.code == 0) {
                // let data = res.data
                let data = []
                // 生成1~31日数据
                for (let i = 1; i <= 31; i++) {
                    let j = i - 1
                    data.push({
                        date: i,
                        yueTotal: '',
                        Jan: res.data.dayCountData[0][j] || '/',
                        Feb: res.data.dayCountData[1][j] || '/',
                        Mar: res.data.dayCountData[2][j] || '/',
                        Apr: res.data.dayCountData[3][j] || '/',
                        May: res.data.dayCountData[4][j] || '/',
                        Jun: res.data.dayCountData[5][j] || '/',
                        Jul: res.data.dayCountData[6][j] || '/',
                        Aug: res.data.dayCountData[7][j] || '/',
                        Sep: res.data.dayCountData[8][j] || '/',
                        Oct: res.data.dayCountData[9][j] || '/',
                        Nov: res.data.dayCountData[10][j] || '/',
                        Dec: res.data.dayCountData[11][j] || '/'
                    })
                }
                let yueList = ['总量', '降水日数', '最大日量']

                for (let i = 0; i < 3; i++) {
                    data.push(
                        {
                            yueTotal: yueList[i],
                            date: "月统计",
                            Jan: i == 0 ? res.data.monthCountDays[0] : i == 1 ? res.data.monthSumByDay[0] : i == 2 ? res.data.monthCountSum[0] : '/',
                            Feb: i == 0 ? res.data.monthCountDays[1] : i == 1 ? res.data.monthSumByDay[1] : i == 2 ? res.data.monthCountSum[1] : '/',
                            Mar: i == 0 ? res.data.monthCountDays[2] : i == 1 ? res.data.monthSumByDay[2] : i == 2 ? res.data.monthCountSum[2] : '/',
                            Apr: i == 0 ? res.data.monthCountDays[3] : i == 1 ? res.data.monthSumByDay[3] : i == 2 ? res.data.monthCountSum[3] : '/',
                            May: i == 0 ? res.data.monthCountDays[4] : i == 1 ? res.data.monthSumByDay[4] : i == 2 ? res.data.monthCountSum[4] : '/',
                            Jun: i == 0 ? res.data.monthCountDays[5] : i == 1 ? res.data.monthSumByDay[5] : i == 2 ? res.data.monthCountSum[5] : '/',
                            Jul: i == 0 ? res.data.monthCountDays[6] : i == 1 ? res.data.monthSumByDay[6] : i == 2 ? res.data.monthCountSum[6] : '/',
                            Aug: i == 0 ? res.data.monthCountDays[7] : i == 1 ? res.data.monthSumByDay[7] : i == 2 ? res.data.monthCountSum[7] : '/',
                            Sep: i == 0 ? res.data.monthCountDays[8] : i == 1 ? res.data.monthSumByDay[8] : i == 2 ? res.data.monthCountSum[8] : '/',
                            Oct: i == 0 ? res.data.monthCountDays[9] : i == 1 ? res.data.monthSumByDay[9] : i == 2 ? res.data.monthCountSum[9] : '/',
                            Nov: i == 0 ? res.data.monthCountDays[10] : i == 1 ? res.data.monthSumByDay[10] : i == 2 ? res.data.monthCountSum[10] : '/',
                            Dec: i == 0 ? res.data.monthCountDays[11] : i == 1 ? res.data.monthSumByDay[11] : i == 2 ? res.data.monthCountSum[11] : '/'

                        }
                    )
                }
                let nianList = ['降水量', '时段(d)', '最大降水量', '开始日期']
                for (let i = 0; i < 4; i++) {
                    data.push(
                        {
                            date: "年统计",
                            yueTotal: '',
                            Jan: nianList[i],
                            Feb: i == 0 ? res.data.yearSum : i == 1 ? 1 : i == 2 ? res.data.maxJsl_1.split(',')[0] : i == 3 ? res.data.maxJsl_1.split(',')[1] : '/',
                            Mar: i == 0 ? '年降水日数' : i == 1 ? 3 : i == 2 ? res.data.maxJsl_3.split(',')[0] : i == 3 ? res.data.maxJsl_3.split(',')[1] : '/',
                            Apr: i == 0 ? res.data.yearDays : i == 1 ? 7 : i == 2 ? res.data.maxJsl_7.split(',')[0] : i == 3 ? res.data.maxJsl_7.split(',')[1] : '/',
                            May: i == 0 ? '' : i == 1 ? 15 : i == 2 ? res.data.maxJsl_15.split(',')[0] : i == 3 ? res.data.maxJsl_15.split(',')[1] : '/',
                            Jun: i == 0 ? '' : i == 1 ? 30 : i == 2 ? res.data.maxJsl_30.split(',')[0] : i == 3 ? res.data.maxJsl_30.split(',')[1] : '/'

                        }
                    )
                }
                // 添加附注行
                data.push({
                    date: '附录',
                    Jan: res.data.fuzhu
                })
                tableData.value = data

            }
            console.log(tableData.value, 'tableData')
            loading.value = false
        } catch (error) {
            loading.value = false
        }
    }

    // 搜索按钮操作
    const handleQuery = () => {
        getList()
    }
    // 重置按钮操作
    const resetQuery = () => { }
    // 下载按钮操作
    const handleExport = () => { }
    onMounted(() => { })
    const columnData = ref([
        { label: '一月', prop: 'Jan' },
        { label: '二月', prop: 'Feb' },
        { label: '三月', prop: 'Mar' },
        { label: '四月', prop: 'Apr' },
        { label: '五月', prop: 'May' },
        { label: '六月', prop: 'Jun' },
        { label: '七月', prop: 'Jul' },
        { label: '八月', prop: 'Aug' },
        { label: '九月', prop: 'Sep' },
        { label: '十月', prop: 'Oct' },
        { label: '十一月', prop: 'Nov' },
        { label: '十二月', prop: 'Dec' }
    ])

    const arraySpanMethod = ({ row, column, rowIndex, columnIndex }) => {
        let rowList = [31, 32, 33, 34, 35, 36, 37]
        // 表头行（第一行）合并第一列和第二列
        if (!rowList.includes(rowIndex)) {
            if (columnIndex === 0) {
                // 第一列合并两列
                return [1, 2];
            } else if (columnIndex === 1) {
                // 第二列被合并，不显示
                return [0, 0];
            }
        }
        // 月统计行合并
        if (rowIndex >= 31 && rowIndex <= 33) {
            if (columnIndex === 0) {
                return rowIndex === 31 ? [3, 1] : [0, 0];
            }
            if (columnIndex === 1) return [1, 1];
        }
        // 年统计行合并
        if (rowIndex >= 34 && rowIndex <= 37) {
            if (columnIndex === 0) {
                return rowIndex === 34 ? [4, 2] : [0, 0];
            }
            if (columnIndex === 1) return [0, 0];
            if (rowIndex == 34) {
                if (columnIndex === 1) {
                    return [1, 2];
                } else if (columnIndex === 2) {
                    return [1, 2];
                } else if (columnIndex === 3) {
                    return [1, 4];
                } else if (columnIndex === 4) {
                    return [1, 2];
                } else if (columnIndex === 5) {
                    return [1, 4];
                } else {
                    return [0, 0];
                }
            }
            let numList = [2, 3, 4, 5, 6, 7]
            if (numList.includes(columnIndex)) {
                // 第三列（yueTotal列）正常显示
                return [1, 2];
            } else {
                return [0, 0]
            }
        }


        // 附录行合并
        if (rowIndex === tableData.value.length - 1) {
            if (columnIndex === 1) {
                return [1, 2];
            } else if (columnIndex === 2) {
                return [1, 12];
            } else {
                return [0, 0];

            }
        }
        // 其他行不合并
        return [1, 1];
    }
</script>
<style scoped lang='scss'>
    /* 斜线表头容器 */
    .diagonal-header {
        position: relative;
        width: 100%;
        height: 100%;
        min-height: 60px;
        /* 确保有足够空间 */
    }

    /* SVG 斜线 */
    .diagonal-line {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        /* 防止遮挡点击事件 */
    }

    /* 月份/日期文本样式 */
    .header-month,
    .header-date {
        position: absolute;
        font-size: 12px;
        line-height: 1;
        z-index: 1;
    }

    /* 右上角月份 */
    .header-month {
        top: 10%;
        right: 10%;
        text-align: right;
    }

    /* 左下角日期 */
    .header-date {
        bottom: 10%;
        left: 10%;
        text-align: left;
    }

    /* 表头单元格高度调整 */
    ::v-deep .el-table__header th {
        padding: 0;
        height: 60px;
        /* 增加高度保证斜线效果 */
    }

    ::v-deep .el-table__header th.el-table__cell>.cell {
        padding: 0 !important;
    }

    /* 隐藏子列的表头行 */
    .merge-header :deep(.el-table__header tr:nth-child(2)) {
        display: none;
    }

    /* 隐藏前31行的下边框 */
    ::v-deep .el-table__body tr:nth-child(-n+30) td,
    ::v-deep .el-table__body tr:nth-child(32) td,
    ::v-deep .el-table__body tr:nth-child(33) td {
        border-bottom: none !important;
    }

    ::v-deep .el-table__body tr:nth-child(32) td:nth-child(1) {
        border-bottom: 1px solid #000 !important;
    }
</style>