<template>
    <el-dialog
        draggable
        class="cn-operate-dialog"
        v-model="dialogVisible"
        width="1000px"
        :title="title"
        @close="cancel"
    >
        <div style="display: flex">
            <el-form :inline="false" :model="form" label-width="auto" :rules="rules" ref="formRef" style="flex: 1">
                <el-form-item class="top" label="组件名称" prop="name">
                    <el-input v-model="form.name" placeholder="请输入组件名称"></el-input>
                </el-form-item>
                <el-form-item class="top" label="父组件节点" prop="system">
                    <el-cascader
                        v-model="form.system"
                        :options="customDeptOption"
                        :props="props"
                        collapse-tags
                        collapse-tags-tooltip
                        clearable
                        placeholder="请选择父组件节点"
                        style="width: 100%"
                    />
                </el-form-item>
                <el-form-item label="组件图标">
                    <IconSelector v-model="form.icon" placeholder="请选择图标" />
                </el-form-item>
                <el-form-item class="top" label="组件标识" prop="code">
                    <el-input v-model="form.code" placeholder="请输入组件菜单选取"></el-input>
                </el-form-item>
                <el-form-item class="top" label="组件路径" prop="path">
                    <el-input v-model="form.path" placeholder="请输入组件路径"></el-input>
                </el-form-item>
                <el-form-item class="top" label="组件查询时间" prop="timeKeys">
                    <el-checkbox-group v-model="form.timeKeys">
                        <el-checkbox-button value="1">年</el-checkbox-button>
                        <el-checkbox-button value="2">季</el-checkbox-button>
                        <el-checkbox-button value="3">月</el-checkbox-button>
                        <el-checkbox-button value="4">周</el-checkbox-button>
                        <el-checkbox-button value="5">日</el-checkbox-button>
                    </el-checkbox-group>
                </el-form-item>

                <el-form-item class="top" label="组件排序" prop="sort">
                    <el-input v-model.number="form.sort" placeholder="请输入组件排序"></el-input>
                </el-form-item>
            </el-form>
            <div style="width: 600px; height: 390px; overflow: hidden">
                <div class="ml10" style="font-weight: 600">组件展示</div>
                <component
                    :is="registerComponent(form.path)"
                    v-if="registerComponent(form.path)"
                    class="pd10 GridLayout"
                    :key="form.path"
                    :height="'350px'"
                    :width="'580px'"
                    :timeKey="form.timeKeys"
                    :w="12"
                    :h="6"
                />
                <!-- <div  class="pd10">组件加载失败...</div> -->
                <el-empty v-else description="未查询到组件" style="height: 350px; width: 533px" />
            </div>
        </div>
        <template #footer>
            <span class="dialog-footer">
                <el-button @click="cancel">取消</el-button>
                <el-button type="primary" @click="submit" :loading="loading">保存</el-button>
            </span>
        </template>
    </el-dialog>
</template>
<script lang="ts" setup>
import { ref, inject, onMounted, type Component, defineAsyncComponent, h, markRaw } from 'vue'
import { reactive } from 'vue'
import { ElMessage } from 'element-plus'
import { useDictData } from '@/stores/dictData'
import { getFatherComponent, componentAdd, componentEdit } from '@/api/user-boot/dept'
import IconSelector from '@/components/baInput/components/iconSelector.vue'
import html2canvas from 'html2canvas'
const emit = defineEmits(['cancel', 'submit'])
const dictData = useDictData()
const dialogVisible = ref(false)
const title = ref('')
const formRef = ref()
const loading = ref(false)
// 注意不要和表单ref的命名冲突
const form = ref<anyObj>({
    name: '',
    sort: 100,
    system: [],
    timeKeys: ['1', '2', '3', '4', '5'],
    code: '',
    path: ''
})
const props = { label: 'name', value: 'id', multiple: true }
const rules = {
    code: [{ required: true, message: '请输入组件标识', trigger: 'blur' }],
    name: [{ required: true, message: '请输输入组件名称', trigger: 'blur' }],
    system: [{ required: true, message: '请先择父组件节点', trigger: 'change' }],
    icon: [{ required: true, message: '请先择组件图标', trigger: 'change' }],
    path: [{ required: true, message: '请输入组件路径', trigger: 'blur' }],
    sort: [{ required: true, message: '请输入排序', trigger: 'blur' }],
    timeKeys: [{ required: true, message: '请选择组件查询时间', trigger: 'change' }]
}
const customDeptOption: any = ref([])
onMounted(() => {})
const getSystem = async () => {
    // customDeptOption.value = dictData.getBasicData('System_Type')
    // await customDeptOption.value.forEach((item: any) => {
    //     getFatherComponent({ systemType: item.id }).then(res => {
    //         item.children = res.data.filter(item => item.name != '无')
    //     })
    // })
    customDeptOption.value = dictData.getBasicData('System_Type')

    // 创建所有异步请求的 Promise 数组
    const promises = customDeptOption.value.map(async (item: any) => {
        try {
            const res = await getFatherComponent({ systemType: item.id })
            item.children = res.data.sort((a, b) => a.sort - b.sort)
        } catch (error) {
            console.error('加载组件失败:', error)
            item.children = []
        }
    })
    // 等待所有请求完成
    await Promise.all(promises)
    // 所有 children 数据都已加载完成
    return customDeptOption.value
}

const open = async (text: string, data?: anyObj) => {
    title.value = text
    dialogVisible.value = true
    await getSystem()
    if (data) {
        let Data = JSON.parse(JSON.stringify(data))
        form.value = Data
        form.value.system = getSystemComponentPairs(customDeptOption.value, Data.componentType)

        form.value.timeKeys = Data.timeKeys || []
    }
}
const submit = () => {
    formRef.value.validate(async (valid: boolean) => {
        if (valid) {
            let url = ''
            ElMessage.info('正在保存请稍等!')
            loading.value = true
            setTimeout(async () => {
                await html2canvas(document.querySelector('.GridLayout'), {
                    // scale: 2
                    scale: 1, // 降低缩放比例（2倍会让像素量翻倍，优先降到1）
                    useCORS: false, // 非跨域图片关闭CORS检测（减少网络请求）
                    logging: false, // 关闭日志输出（减少控制台开销）
                    letterRendering: true, // 优化文字渲染性能
                    allowTaint: true, // 允许跨域图片污染画布（避免额外校验）
                    removeContainer: true, // 自动清理生成的临时容器
                    ignoreElements: el => {
                        // 忽略不可见/非关键元素（比如隐藏的弹窗、装饰性元素）
                        return el.style.display === 'none' || el.classList.contains('ignore-screenshot')
                    }
                }).then(canvas => {
                    url = canvas.toDataURL('image/png')
                })
                if (title.value == '新增组件') {
                    await componentAdd({
                        ...form.value,
                        systemType: formatFirstIdToString(form.value.system, 0),
                        componentType: formatFirstIdToString(form.value.system, 1),
                        pid: '123',
                        image: url
                    }).then(res => {
                        ElMessage.success('新增成功!')
                        emit('submit')
                        cancel()
                    })
                } else {
                    await componentEdit({
                        ...form.value,
                        systemType: formatFirstIdToString(form.value.system, 0),
                        componentType: formatFirstIdToString(form.value.system, 1),
                        pid: '123',
                        image: url
                    }).then(res => {
                        ElMessage.success('修改成功!')
                        emit('submit')
                        cancel()
                    })
                }
                loading.value = false
            }, 500)
        }
    })
}
// 处理函数：提取子数组第一个元素 + 去重 + 拼接
const formatFirstIdToString = (data: any, num: number) => {
    // 1. 提取每个子数组的第一个元素
    const firstIds = data.map(item => item[num])
    // 2. 去重（利用Set特性）
    const uniqueFirstIds = [...new Set(firstIds)]
    // 3. 拼接成逗号分隔的字符串
    return uniqueFirstIds.join(',')
}
// 根据id 找二位数组回显
function getSystemComponentPairs(data: any, idsStr: string) {
    const targetIds = idsStr.split(',')
    const result: any[] = []

    // 遍历所有数据
    data.forEach(system => {
        const systemId = system.id
        const children = system.children || []

        // 在children中查找匹配的ID
        children.forEach(child => {
            if (targetIds.includes(child.id)) {
                result.push([systemId, child.id])
            }
        })
    })

    // 按照提供的ID顺序排序
    return result.sort((a, b) => {
        const indexA = targetIds.indexOf(a[1])
        const indexB = targetIds.indexOf(b[1])
        return indexA - indexB
    })
}

// 组件映射
const componentMap = reactive(new Map<string, Component | string>())
// 动态注册组件
const registerComponent = (path: string): Component | string | null => {
    if (!path) return null
    if (path.slice(-4) != '.vue') return null

    const cacheKey = path

    // 使用缓存的组件
    if (componentMap.has(cacheKey)) {
        return componentMap.get(cacheKey)!
    }

    try {
        // 动态导入组件
        const modules = import.meta.glob('@/**/*.vue')
        if (!modules[path]) {
            console.error(`组件加载失败: ${path}`)
            return null
        }

        const AsyncComponent = defineAsyncComponent({
            loader: modules[path],
            loadingComponent: () => h('div', '加载中...'),
            errorComponent: ({ error }) => h('div', `加载错误: ${error.message}`),
            delay: 200,
            timeout: 10000
        })

        // 保存到映射中
        componentMap.set(cacheKey, markRaw(AsyncComponent))
        return AsyncComponent
    } catch (error) {
        console.error('注册组件失败:', error)
        return null
    }
}
const cancel = () => {
    emit('cancel')
    dialogVisible.value = false
}
defineExpose({ open })
</script>
