<template>
    <div class="com-table-container">
        <!-- 查询表单 -->
        <ComSearchForm
            v-if="showSearch"
            ref="searchFormRef"
            :form-columns="formColumns"
            :show-search="showSearch"
            :default-form-data="defaultFormData"
            :size="size"
            @search="handleSearch"
            @reset="handleReset"
        />

        <!-- 数据表格 -->
        <ComDataTable
            ref="dataTableRef"
            :table-data="tableData"
            :table-columns="tableColumns"
            :loading="loading"
            :pagination="pagination"
            :show-selection="showSelection"
            :show-index="showIndex"
            :show-toolbar="showToolbar"
            :show-action="showAction"
            :action-columns="actionColumns"
            @selection-change="handleSelectionChange"
            @refresh="handleRefresh"
            @pagination-change="handlePaginationChange"
            @action="handleAction"
        >
            <!-- 工具栏插槽 -->
            <template #toolbar>
                <slot
                    name="toolbar"
                    :formData="
                        Object.assign({}, searchFormRef?.getFormData() || {}, {
                            pageNum: pagination.page,
                            pageSize: pagination.limit,
                        }) || {}
                    "
                />
            </template>

            <!-- 自定义列插槽 -->
            <template
                v-for="column in tableColumns"
                :key="column.prop"
                #[column.slot]="{ row, index, prop }"
            >
                <slot :name="column.slot" :row="row" :index="index" :prop="prop" />
            </template>

            <!-- 操作列插槽 -->
            <template #action="{ row, index }">
                <slot name="action" :row="row" :index="index" />
            </template>
        </ComDataTable>
    </div>
</template>

<script setup>
import { ref, reactive, onMounted } from 'vue'
import ComSearchForm from '@/components/ComSearchForm/index.vue'
import ComDataTable from '@/components/ComDataTable/index.vue'

const props = defineProps({
    // 表单配置
    formColumns: {
        type: Array,
        default: () => [],
    },
    // 表格配置
    tableColumns: {
        type: Array,
        default: () => [],
    },
    // 显示搜索表单
    showSearch: {
        type: Boolean,
        default: true,
    },
    // 表单大小
    size: {
        type: String,
        default: 'default',
    },
    // 默认表单数据
    defaultFormData: {
        type: Object,
        default: () => ({}),
    },
    // 表格功能开关
    showSelection: {
        type: Boolean,
        default: false,
    },
    showIndex: {
        type: Boolean,
        default: true,
    },
    showToolbar: {
        type: Boolean,
        default: false,
    },
    showAction: {
        type: Boolean,
        default: false,
    },
    // 操作列配置
    actionColumns: {
        type: Array,
        default: () => [],
    },
    // 数据加载函数
    loadData: {
        type: Function,
        default: null,
    },
    // 初始化默认查询参数
    defaultQueryParams: {
        type: Object,
        default: () => ({}),
    },
})

const emit = defineEmits(['search', 'reset', 'selection-change', 'action'])

const searchFormRef = ref(null)
const dataTableRef = ref(null)

const loading = ref(false)
const tableData = ref([])
const pagination = reactive({
    page: 1,
    limit: 10,
    total: 0,
})

// 搜索
const handleSearch = (formData) => {
    pagination.page = 1
    fetchData(formData)
    emit('search', formData)
}

// 重置
const handleReset = (formData) => {
    pagination.page = 1
    fetchData(formData)
    emit('reset', formData)
}

// 选择变化
const handleSelectionChange = (selection) => {
    emit('selection-change', selection)
}

// 刷新
const handleRefresh = () => {
    const formData = searchFormRef.value?.getFormData() || {}
    fetchData(formData)
}

// 分页变化
const handlePaginationChange = (newPagination) => {
    Object.assign(pagination, newPagination)
    const formData = searchFormRef.value?.getFormData() || {}
    fetchData(formData)
}

// 操作
const handleAction = (action, row, index) => {
    emit('action', action, row, index)
}

// 获取数据
const fetchData = async (formData = {}) => {
    if (!props.loadData) {
        console.warn('ComTable: loadData function is not provided')
        return
    }

    loading.value = true
    try {
        const params = {
            ...formData,
            ...props.defaultQueryParams,
            pageNum: pagination.page, // 后端可能需要pageNum
            pageSize: pagination.limit, // 后端可能需要pageSize
        }

        const response = await props.loadData(params)

        // 假设返回格式：{ rows: [], total: 0 } 或 { data: { rows: [], total: 0 } }
        if (response) {
            const data = response.rows || response.data?.rows || response.data || []
            const total = response.total || response.data?.total || 0

            tableData.value = data
            pagination.total = total
        }
    } catch (error) {
        console.error('ComTable: fetchData error', error)
        tableData.value = []
        pagination.total = 0
    } finally {
        loading.value = false
    }
}

onMounted(() => {
    fetchData()
})

// 暴露方法
defineExpose({
    searchFormRef,
    dataTableRef,
    refresh: handleRefresh,
    getFormData: () => searchFormRef.value?.getFormData() || {},
    resetForm: () => searchFormRef.value?.resetForm(),
    clearSelection: () => dataTableRef.value?.clearSelection(),
})
</script>

<style scoped>
.com-table-container {
    width: 100%;
}
</style>
