<template>
	<el-dialog v-model="visible" title="更新材料" width="900px" destroy-on-close append-to-body :close-on-click-modal="false">
		<template #header>
			<div class="dialog-header">
				<span class="dialog-title">
					<el-icon><Upload /></el-icon>
					更新材料 - {{ purchaseNo || purchaseId }}
				</span>
			</div>
		</template>

		<el-alert
			title="仅支持上传PDF格式文件，每个类型仅能上传1个文件，如需更新，请先删除原文件"
			type="info"
			:closable="false"
			style="margin-bottom: 16px"
		/>

		<el-empty v-if="uploadedFileTypes.length === 0" description="该采购申请暂无上传材料" />

		<el-form v-else label-width="120px">
			<el-form-item label="采购编号">
				<el-input v-model="purchaseNo" disabled />
			</el-form-item>

			<el-form-item v-for="item in displayedFileTypes" :key="item.value" :label="item.label">
				<upload-file
					v-model="fileMap[item.value]"
					:limit="1"
					:file-type="['pdf']"
					:data="{ fileType: item.value, purchaseId: purchaseId }"
					upload-file-url="/purchase/purchasingfiles/upload"
					@success="(res) => handleUploadSuccess(res, item.value)"
				/>
				<div class="file-tips">{{ item.desc }}</div>
			</el-form-item>
		</el-form>

		<template #footer>
			<el-button @click="visible = false">关闭</el-button>
		</template>
	</el-dialog>
</template>

<script setup lang="ts">
import { ref, reactive, computed, nextTick } from 'vue';
import { Upload } from '@element-plus/icons-vue';
import { useMessage } from '/@/hooks/message';
import { updateFiles, getApplyFiles } from '/@/api/purchase/purchasingrequisition';

interface FileItem {
	id: string;
	name: string;
	url: string;
}

interface FileTypeItem {
	value: string;
	label: string;
	desc: string;
}

const visible = ref(false);
const submitting = ref(false);
const purchaseId = ref('');
const purchaseNo = ref('');

const fileMap = reactive<Record<string, FileItem[]>>({});

// 已上传文件类型列表（只显示有文件的类型）
const uploadedFileTypes = ref<string[]>([]);

const fileTypeList: FileTypeItem[] = [
	{ value: '10', label: '商务洽谈纪要', desc: '商务洽谈相关纪要文件' },
	{ value: '20', label: '市场采购纪要', desc: '市场采购相关纪要文件' },
	{ value: '30', label: '网上商城采购材料', desc: '网上商城采购相关材料' },
	{ value: '40', label: '可行性论证报告', desc: '项目可行性论证报告' },
	{ value: '50', label: '会议记录', desc: '相关会议记录文件' },
	{ value: '60', label: '其他材料', desc: '其他相关材料' },
	{ value: '70', label: '单一来源专家论证表', desc: '单一来源采购专家论证表' },
	{ value: '80', label: '进口产品申请表', desc: '进口产品申请相关表格' },
	{ value: '90', label: '进口产品专家论证表', desc: '进口产品专家论证表' },
	{ value: '100', label: '政府采购意向表', desc: '政府采购意向公示表' },
	{ value: '110', label: '履约验收单', desc: '履约验收相关单据' },
	{ value: '120', label: '采购需求表', desc: '采购需求明细表' },
];

// 根据已上传文件类型过滤显示列表（排除履约验收110和采购文件130）
const displayedFileTypes = computed(() => {
	return fileTypeList.filter((item) => uploadedFileTypes.value.includes(item.value) && item.value !== '110' && item.value !== '130');
});

const open = async (id: string, no?: string) => {
	purchaseId.value = id || '';
	purchaseNo.value = no || '';
	visible.value = true;
	// 清空文件列表
	fileTypeList.forEach((item) => {
		fileMap[item.value] = [];
	});
	uploadedFileTypes.value = [];

	// 获取已上传的文件
	try {
		const res = await getApplyFiles(id);
		const files = res?.data || [];

		// 收集已上传的文件类型
		const fileTypes = new Set<string>();
		files.forEach((file: any) => {
			if (file.fileType) {
				fileTypes.add(String(file.fileType));
				// 初始化已有文件的类型列表
				if (!fileMap[file.fileType]) {
					fileMap[file.fileType] = [];
				}
				fileMap[file.fileType].push({
					id: file.id,
					name: file.fileTitle || '附件',
					url: file.fileUrl,
				});
			}
		});

		uploadedFileTypes.value = Array.from(fileTypes);
	} catch (e) {
		console.error('获取已上传文件失败', e);
	}
};

const handleUploadSuccess = (res: any, fileType: string) => {
	if (res && res.data) {
		useMessage().success('上传成功');
		// 自动提交更新
		nextTick(() => {
			handleSubmit();
		});
	}
};

const handleSubmit = async () => {
	if (!purchaseId.value) {
		useMessage().warning('无法获取采购申请ID');
		return;
	}

	// 收集所有当前显示的文件ID（排除履约验收110和采购文件130）
	const allFileIds: string[] = [];
	uploadedFileTypes.value
		.filter((ft) => ft !== '110' && ft !== '130')
		.forEach((fileType) => {
			const files = fileMap[fileType] || [];
			files.forEach((file) => {
				if (file.id) {
					allFileIds.push(file.id);
				}
			});
		});

	if (allFileIds.length === 0) {
		useMessage().warning('请至少保留或上传一个文件');
		return;
	}

	submitting.value = true;
	try {
		await updateFiles({
			purchaseId: purchaseId.value,
			fileIds: allFileIds,
		});
		useMessage().success('更新材料成功');
		visible.value = false;
		emit('refresh');
	} catch (err: any) {
		useMessage().error(err?.msg || '更新材料失败');
	} finally {
		submitting.value = false;
	}
};

const emit = defineEmits<{
	(e: 'refresh'): void;
}>();

defineExpose({
	open,
});
</script>

<style scoped lang="scss">
.dialog-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
}

.dialog-title {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 16px;
	font-weight: 500;
}

.file-tips {
	font-size: 12px;
	color: #909399;
	margin-top: 4px;
}
</style>
