<template>
	<span v-loading.fullscreen.lock="upload.isUploading">
		<span @click="handleImport">
			<slot>
				<el-button type="info" plain icon="Upload">导入</el-button>
			</slot>
		</span>
		<!-- 数据导入对话框 -->
		<el-dialog :title="upload.title" v-model="upload.open" width="400px" append-to-body>
			<el-upload ref="uploadRef" :limit="1" accept=".xlsx, .xls" :headers="upload.headers"
				:action="upload.url + '?updateSupport=' + upload.updateSupport" :disabled="upload.isUploading"
				:on-progress="handleFileUploadProgress" :on-success="handleFileSuccess" :auto-upload="false" drag>
				<el-icon class="el-icon--upload">
					<upload-filled />
				</el-icon>
				<div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
				<template #tip>
					<div class="el-upload__tip text-center">
						<div class="el-upload__tip">
							<el-checkbox v-model="upload.updateSupport" label="是否更新已经存在的数据" />
						</div>
						<span>仅允许导入xls、xlsx格式文件。</span>
						<el-link type="primary" :underline="false" style="font-size:12px;vertical-align: baseline;"
							@click="importTemplate">下载模板</el-link>
					</div>
				</template>
			</el-upload>
			<template #footer>
				<div class="dialog-footer">
					<el-button type="primary" @click="submitFileForm">确 定</el-button>
					<el-button @click="upload.open = false">取 消</el-button>
				</div>
			</template>
		</el-dialog>
	</span>
</template>

<script setup>
	import {
		getToken
	} from "@/utils/auth";
	const {
		proxy
	} = getCurrentInstance();
	const emit = defineEmits();

	const props = defineProps({
		title: {
			type: String,
			default: null,
		},
		url: {
			type: String,
			default: "",
		},
	});
	const {
		title,
		url
	} = toRefs(props);

	/*** 数据导入参数 */
	const upload = reactive({
		// 是否显示弹出层（数据导入）
		open: false,
		// 弹出层标题（数据导入）
		title: "",
		// 是否禁用上传
		isUploading: false,
		// 是否更新已经存在的数据数据
		updateSupport: 0,
		// 设置上传的请求头部
		headers: {
			Authorization: "Bearer " + getToken()
		},
		// 上传的地址
		url: import.meta.env.VITE_APP_BASE_API + `/${url.value}/importData`,
	});

	/** 导入按钮操作 */
	function handleImport() {
		upload.title = title.value || "数据导入";
		upload.open = true;
	}
	/** 下载模板操作 */
	function importTemplate() {
		proxy.download(
			`${url.value}/importTemplate`, {},
			`${url.value}模板-${proxy.parseTime(
      new Date(),
      "{y}-{m}-{d} {h}:{i}:{s}"
    )}.xlsx`
		);
	}
	/**文件上传中处理 */
	const handleFileUploadProgress = (event, file, fileList) => {
		upload.isUploading = true;
	};
	/** 文件上传成功处理 */
	const handleFileSuccess = (response, file, fileList) => {
		upload.open = false;
		upload.isUploading = false;
		proxy.$refs["uploadRef"].clearFiles();
		proxy.$alert(
			"<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" +
			response.msg +
			"</div>",
			"导入结果", {
				dangerouslyUseHTMLString: true
			}
		);
		emit("success");
	};
	/** 提交上传文件 */
	function submitFileForm() {
		proxy.$refs["uploadRef"].submit();
	}
</script>