<template>
  <slot name="default" />

  <el-dialog append-to-body v-model="dialog.dialogVisible" :title="dialog.dialogTitle" width="1250">
    <nav class="flex flex-items-center mb-8">
      <!-- <div class="flex flex-items-center">
        <div style="width: 70px; text-align: right; padding-right: 10px">房屋类型</div>
        <div class="flex-1">
          <el-select @change="handleChangeHouse" style="width: 140px" v-model="queryParams.houseUseTypeId">
            <el-option v-for="(item, index) in houseUseTypeList" :key="index" :label="item.name" :value="item.id"></el-option>
          </el-select>
        </div>
      </div> -->
      <div class="flex flex-items-center">
        <div style="width: 50px; text-align: right; padding-right: 10px">楼栋</div>
        <div class="flex-1"></div>
        <el-select @change="handleChangebuilding" clearable style="width: 140px" v-model="queryParams.buildingId">
          <el-option v-for="(item, index) in buildinglist" :key="index" :label="item.buildingName" :value="item.id"></el-option>
        </el-select>
      </div>
      <div class="flex flex-items-center mr-20px">
        <div style="width: 50px; text-align: right; padding-right: 10px">单元</div>
        <div class="flex-1">
          <el-select @change="handleChangeUnit" clearable style="width: 140px" v-model="queryParams.unitNoId">
            <el-option v-for="(item, index) in unitlist" :key="index" :label="item.unitNoName" :value="item.unitNoId"></el-option>
          </el-select>
        </div>
      </div>
      <div class="flex flex-items-center mr-20px">
        <div style="width: 80px; text-align: right; padding-right: 10px">房屋类型</div>
        <div class="flex-1">
          <el-select clearable @change="handleHouseUseChange" style="width: 140px" v-model="queryParams.houseUseTypeId">
            <el-option v-for="(item, index) in houseUseTypeList" :key="index" :label="item.name" :value="item.id"></el-option>
          </el-select>
        </div>
      </div>
      <div class="flex flex-items-center mr-20px">
        <div style="width: 80px; text-align: right; padding-right: 10px">业主名称</div>
        <div class="flex-1">
          <el-input clearable @clear="handleClear" v-model="queryParams.residentName" placeholder="查找业主"></el-input>
        </div>
      </div>
      <div>
        <el-button type="primary" @click="getlist">查询</el-button>
        <el-button @click="resetQuery">重置</el-button>
      </div>
    </nav>
    <el-table
      v-loading="loading"
      @row-click="handleRowClick"
      ref="multipleTableRef"
      :data="tableData"
      border
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" align="center" width="55" type="index" />
      <el-table-column label="小区" align="center" prop="villageName" />
      <el-table-column label="楼栋" align="center" prop="buildingName" />
      <el-table-column label="单元" align="center" prop="unitNoName" />
      <el-table-column label="房间" align="center" prop="houseNo" />
      <el-table-column label="业主" align="center">
        <template #default="scope">
          <span>{{ scope.row.residentName ? scope.row.residentName : '---' }}</span>
        </template>
      </el-table-column>
    </el-table>
    <template #footer>
      <div class="dialog-footer flex flex-items-center flex-justify-between">
        <pagination
          style="margin-top: 0"
          layout="total, prev, pager, next, jumper"
          v-show="total > 0"
          :total="total"
          v-model:page="queryParams.pageNum"
          v-model:limit="queryParams.pageSize"
          @pagination="getlist"
        />
        <div>
          <el-button @click="conback">退出</el-button>
          <el-button type="primary" @click="confirm"> 确定 </el-button>
        </div>
      </div>
    </template>
  </el-dialog>
</template>

<script setup lang="ts">
import { getBuildinglistAPI, getBuildingOnly, getHouselistAPI } from '@/api/system/house';
import { listHouseUseType } from '@/api/system/houseUse';
import { BillHouse, listBillHouse } from '@/api/system/SdbBill';
import { ref, watch, nextTick, getCurrentInstance, ComponentInternalInstance, toRefs } from 'vue';

// const { proxy } = getCurrentInstance() as ComponentInternalInstance;
// const { sys_user_sex } = toRefs<any>(proxy?.useDict('sys_user_sex'));
// const { com_build_use } = toRefs<any>(proxy?.useDict('com_build_use'));

const props = defineProps({
  returnvalue: {
    type: String,
    default: 'houseId'
  },
  titleName: {
    type: String,
    default: '选择房屋'
  },
  /** 是否多选 false 单选   */
  isMultiple: {
    type: Boolean,
    default: false
  }
});

const { titleName, returnvalue } = toRefs(props);

const showids = ref([]);

// ✅ 手动设置默认值（替代 withDefaults）
const emit = defineEmits<{
  change: [value: string | number | (string | number)[] | BillHouse | BillHouse[]]; // 支持返回数组
}>();

const dialog = ref({
  dialogVisible: false,
  dialogTitle: titleName.value
});

const queryParams = ref({
  pageNum: 1,
  pageSize: 10,
  // houseUseTypeId: null,
  buildingId: null,
  unitNoId: null,
  houseUseTypeId: null,
  residentName: ''
});

const multipleTableRef = ref();
const tableData = ref<BillHouse[]>([]);
const total = ref(0);
const loading = ref(false);

// 存储选中项
const multipleSelection = ref<BillHouse[]>([]);

const isMultiple = computed(() => props.isMultiple ?? false);

// 优化 handleUserSelection，避免重复查找
const handleUserSelection = () => {
  if (!tableData.value.length) return;
  multipleSelection.value = [];
  if (showids.value.length > 0) {
    const arr = showids.value;
    arr.forEach((item) => {
      const target = tableData.value.find((row) => row.houseId == item);
      target && multipleSelection.value.push(target);
    });
    nextTick(() => {
      if (multipleTableRef.value) {
        multipleTableRef.value.clearSelection();
        multipleSelection.value.forEach((item) => {
          multipleTableRef.value.toggleRowSelection(item, true);
        });
      }
    });
  }
};

// ====================== 方法 ======================
const houseUseTypeList = ref([]);
// 获取列表
function getlist() {
  loading.value = true;
  listBillHouse(queryParams.value)
    .then((res) => {
      tableData.value = res.rows;
      total.value = res.total;
      handleUserSelection();
    })
    .catch((error) => {
      console.error('获取列表失败:', error);
    })
    .finally(() => {
      loading.value = false;
    });
}

/** 楼栋列表 */
const buildinglist = ref([]);
/** 房屋列表 */
const unitlist = ref([]);

/** 获取楼栋 列表 */
function handleChangeHouse() {
  getBuildinglistAPI().then((res) => {
    buildinglist.value = res.data;
  });
}

function handleClear() {
  queryParams.value.residentName = '';
  getlist();
}
function handleHouseUseChange() {
  getlist();
}
/** 单元列表 */
function handleChangebuilding(val: string) {
  queryParams.value.unitNoId = null;
  unitlist.value = [];

  if (queryParams.value.buildingId) {
    getHouselistAPI(val).then((res) => {
      unitlist.value = res.data.units;
      getlist();
    });
  }
  getlist();
}
function handleChangeUnit() {
  getlist();
}

// ==============================================
// ✅ 新增：处理 selection-change（多选专用）
// ==============================================
function handleSelectionChange(selection: BillHouse[]) {
  if (isMultiple.value) {
    multipleSelection.value = selection;
  }
}
// ==============================================
// 最佳单选方案：点击行选中，无报错、无循环、最稳定
// ==============================================
// 优化 handleRowClick，避免重复
function handleRowClick(row: BillHouse) {
  if (!multipleTableRef.value) return;

  if (isMultiple.value) {
    const index = multipleSelection.value.findIndex((item) => item.houseId === row.houseId);
    if (index > -1) {
      // 取消选中
      multipleSelection.value.splice(index, 1);
      multipleTableRef.value?.toggleRowSelection(row, false);
    } else {
      // 选中
      multipleSelection.value.push(row);
      multipleTableRef.value?.toggleRowSelection(row, true);
    }
  } else {
    // 【单选模式】先清空，再选中当前行
    multipleSelection.value = [];
    multipleTableRef.value.clearSelection();
    multipleSelection.value = [row];
    multipleTableRef.value.toggleRowSelection(row, true);
  }
}
// 重置查询
function resetQuery() {
  queryParams.value = {
    pageNum: 1,
    pageSize: 10,
    houseUseTypeId: null,
    buildingId: null,
    unitNoId: null,
    residentName: ''
  };
  getlist();
}

// 退出
function conback() {
  dialog.value.dialogVisible = false;
  resetQuery();
}

// ==============================================
// ✅ 核心修改：根据 returnvalue 返回对应的值
// ==============================================
function confirm() {
  dialog.value.dialogVisible = false;
  if (isMultiple.value) {
    // 多选
    if (returnvalue.value === '*') {
      // ✅ 返回整个对象数组
      emit('change', multipleSelection.value);
    } else {
      // 返回指定字段数组
      emit(
        'change',
        multipleSelection.value.map((item) => item[returnvalue.value as keyof BillHouse])
      );
    }
  } else {
    // 单选
    if (returnvalue.value === '*') {
      // ✅ 返回整个对象
      emit('change', multipleSelection.value[0]);
    } else {
      // 返回指定字段
      emit('change', multipleSelection.value[0][returnvalue.value as keyof BillHouse]);
    }
  }

  multipleSelection.value = [];
  multipleTableRef.value.clearSelection();
}

defineExpose({
  open: (showidArray: string[] = []) => {
    showids.value = showidArray;
    getlist();
    dialog.value.dialogVisible = true;

    listHouseUseType({
      pageNum: 1,
      pageSize: 99999
    }).then((res) => {
      houseUseTypeList.value = res.rows;
    });
    handleChangeHouse();
  }
});
</script>

<style scoped lang="scss">
.residentBox {
  width: 385px;
  height: 35px;
  line-height: 35px;
  border: 1px solid #ccc;
  border-radius: 5px;
  padding: 0 10px;
  .defaultbox {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  cursor: pointer;
  &:hover {
    background-color: #f4f8ff;
  }
}
</style>
