<template>
    <div class="system-dept-container layout-padding">
		<el-card shadow="hover" class="layout-padding-auto">
			<!-- <div class="system-dept-search mb15">
				<span>名称:</span>
                <el-input size="default" placeholder="请输入" v-model="state.tableData.param.name" class="ml10" style="max-width: 250px;margin-right: 20px;"> </el-input>
				<el-button @click="getTableData" size="default" type="primary" class="ml10" style="margin-right: 15px;">
					<el-icon>
						<ele-Search />
					</el-icon>
					查询
				</el-button>
				<el-button @click="reset" size="default" type="primary" class="ml10"  style="margin-right: 15px;">
					<el-icon>
						<ele-RefreshRight />
					</el-icon>
					重置
				</el-button> -->
				<!-- <el-button @click="switchDrawer(0)" size="default" type="primary" class="ml10">
					<el-icon>
						<ele-FolderAdd />
					</el-icon>
					新增轮播图
				</el-button> -->
			<!-- </div> -->
			<el-table :data="state.tableData.data" v-loading="state.tableData.loading" style="width: 100%;" class="custom-table">
				<el-table-column prop="name" label="轮播图名称" width="150px" show-overflow-tooltip></el-table-column>
				<el-table-column  label="素材" align="center">
					<template #default="scope">
						<el-image :src="encodeURI(viteUrl+scope.row.path)" lazy
						preview-teleported="true" :preview-src-list="[encodeURI(viteUrl+scope.row.path)]"/>
						<!-- <a :href="jpgFormatter(scope.row)">{{ jpgFormatter(scope.row) }}</a> -->
						 <!-- <el-button @click="jpgJump(scope.row)" text type="primary">{{ jpgFormatter(scope.row) }}</el-button> -->
					</template>
				</el-table-column>
				<el-table-column  label="跳转地址" show-overflow-tooltip align="center">
					<template #default="scope">
						<!-- <a :href="jpgFormatter(scope.row)">{{ jpgFormatter(scope.row) }}</a> -->
						 <el-button @click="jpgJump(scope.row)" text type="primary">{{ scope.row.url }}</el-button>
					</template>
				</el-table-column>
				<el-table-column prop="orderNum" label="排序号" sortable show-overflow-tooltip align="center"></el-table-column>		
				<el-table-column prop="createtime" label="创建时间" :formatter="dateFormatter" show-overflow-tooltip align="center"></el-table-column>
				<el-table-column label="操作" width="300" align="center">
					<template #default="scope">
						<el-button size="small" text type="primary" @click="switchDrawer(scope.row.id,1)">
							<el-icon>
								<ele-EditPen/>
							</el-icon>
						</el-button>
						<el-button size="small" text type="primary" @click="deleteBanner(scope.row.id)">
							<el-icon>
								<ele-Delete/>
							</el-icon>
						</el-button>
					</template>
				</el-table-column>		
			</el-table>

			<div class="add-banner" @click="switchDrawer(0)">
      + 添加banner
    	</div>

			<!-- 新增或编辑弹窗  -->
			<el-drawer
				v-model="dialog"
				:title="flag?'新增轮播图':'编辑轮播图'"
				@close="resetForm"
				direction="rtl"
				size="45%"
			>
				<div class="demo-drawer__content">
					<el-form  
						ref="ruleFormRef"
						style="max-width: 85%"
						:model="state.formData"
						:rules="state.rules"
						label-width="100px"
						class="demo-ruleForm"
						:size="formSize"
						:label-position="labelPosition"
						status-icon
						v-loading="state.formData.loading"
					>
						<el-form-item label="名称:" prop="name">
							<el-input v-model="state.formData.name" />
						</el-form-item>
						<el-form-item label="轮播图:" prop="fileList">
							<el-upload ref="uploadRef" action="#" list-type="picture-card" :class="{disabled:uploadDisabled}" 
							:limit="1" :file-list="state.formData.fileList" :on-change="handleChange" :auto-upload="false">
							<el-icon><Plus /></el-icon>
							<template #file="{ file }">
							<div>
								<img class="el-upload-list__item-thumbnail" :src="encodeURI(file.url)" alt="" />
								<span class="el-upload-list__item-actions">
								<span
									class="el-upload-list__item-preview"
									@click="handlePictureCardPreview(file)"
								>
									<el-icon><zoom-in /></el-icon>
								</span>
								<span
									v-if="!disabled"
									class="el-upload-list__item-delete"
									@click="handleRemove(file)"
								>
									<el-icon><Delete /></el-icon>
								</span>
								</span>
							</div>
							</template>
						</el-upload>
						<el-dialog v-model="dialogVisible">
							<img :src="dialogImageUrl"  style="width: 100%"  alt="Preview Image" />
						</el-dialog>
						</el-form-item>
						<el-form-item label="跳转链接:" prop="url">
							<el-input v-model="state.formData.url" />
						</el-form-item>
						<el-form-item label="排序号:" prop="orderNum">
							<el-input v-model.number="state.formData.orderNum" />
						</el-form-item>
					</el-form>
					<div class="demo-drawer__footer">
						<el-button @click="submitForm(flag)" :loading="loading" style="margin-right: 30px;">
							{{ loading ? '保存 ...' : '保存' }}
						</el-button>
						<el-button type="primary" @click="cancelForm">取消</el-button>
					</div>
				</div>
			</el-drawer>
			<!-- 分页器 -->
			<!-- <el-pagination
				@size-change="onHandleSizeChange"
				@current-change="onHandleCurrentChange"
				class="mt15"
				:pager-count="5"
				:page-sizes="[10, 20, 30]"
				v-model:current-page="state.tableData.param.current"
				background
				v-model:page-size="state.tableData.param.size"
				layout="total, sizes, prev, pager, next, jumper"
				:total="state.tableData.total"
			>
			</el-pagination> -->
		</el-card>
	</div>
</template>

<script setup lang="ts" name="carousel">
import { onMounted, reactive, ref } from 'vue';
import { useRouter } from 'vue-router';
import { ElDrawer, ElMessage, ElMessageBox, TableColumnCtx } from 'element-plus';
import { Delete, Download, Plus, ZoomIn } from '@element-plus/icons-vue'
import type { ComponentSize, FormInstance, FormRules, UploadFile, UploadProps, UploadUserFile } from 'element-plus'
import { baseUrlHost } from '../../api/baseUrlHost';
import { bannerApi } from '/@/api/carousel';

const router = useRouter();

// 数据
const state = reactive({
	tableData: {
		data: [],
		total: 0,
		loading: false,
		param: {
			name:'',
			current: 1,
			size: 10,
		},
	},
	formData: {
		fileList: [],
		name:"",
		path:"",
		url: '',
		orderNum: "",
		loading: false
	},
	rules: {
		name: [
    		{ required: true, message: '请输入名称', trigger: 'blur' }
		],
		fileList: [
			{ required: true, message: '请选择图片', trigger: 'blur' }
		],
		orderNum: [
			{ required: true, message: '请输入排序号', trigger: 'blur' },
			{ type: 'number', message: '排序号必须是数字' },
		],
	},
});

// #region

// 引入 api 请求接口
const banApi = bannerApi();

// 获取表格数据
const getTableData = async() => {
	try {
		state.tableData.loading = true;
		let res = await banApi.getBannerList(state.tableData.param);
		console.log(res);
		if(res?.success){
			state.tableData.data = res.data.records;
			state.tableData.total = res.data.total;
		}else{
			ElMessage.error('轮播图列表获取失败！');
		}
	} catch (error) {
	} finally {
		state.tableData.loading = false;
	}
};

// 重置
// const reset = () =>{
// 	state.tableData.param = {
// 		name: '',
// 		current: 1,
// 		size: 10,
// 	}
// 	getTableData();
// }

// 图片基本路径
const viteUrl = import.meta.env.VITE_API_URL;



// 图片链接格式化
const jpgFormatter = (row: any) => {
	let newPath;
	if (row?.data) {
		newPath = row.data.path.replaceAll('\\', '/')	
	} else {
		newPath = row.path.replaceAll('\\\\', '/')		
	}
	newPath = newPath.includes('http://localhost:8888/') ? newPath : encodeURI(viteUrl + newPath)
  	return `${newPath}`;
};

//轮播图跳转
const jpgJump = (row:any) =>{
	window.open(row.url);
};

// 日期格式化
const dateFormatter = (row: any, column: TableColumnCtx<String>) => {
	let date = new Date(row.createtime);
  	return `${date.getFullYear()}-${date.getMonth() + 1}-${date.getDate()}`;
}

// 分页改变
// const onHandleSizeChange = (val: number) => {
// 	state.tableData.param.size = val;
// 	getTableData();
// };

// // 分页改变
// const onHandleCurrentChange = (val: number) => {
// 	state.tableData.param.current = val;
// 	getTableData();
// };
// #endregion

// #region
const dialog = ref(false)
const flag = ref(false)


const formSize = ref<ComponentSize>('large')
const labelPosition = ref<FormProps['labelPosition']>('Left')
const ruleFormRef = ref<FormInstance>()
const uploadDisabled = ref(false)


const switchDrawer = async (id: number, staus) => {
	console.log("switchDrawer",id,state.formData,state.formData.fileList);
	dialog.value = true;
	if (staus == 1) {
		flag.value = false;
		state.formData.loading = true;
		let res = await banApi.getBannerDetail(id)
		console.log("res",res.data.path);
		if (res?.success) {
			state.formData.fileList.push({ url: jpgFormatter(res.data) });
			// console.log("state.formData.fileList",state.formData);
			Object.assign(state.formData, res.data);
			// console.log("state.formData",state.formData);
			state.formData.path = jpgFormatter(res.data);
			uploadDisabled.value = true;
			state.formData.loading = false;
			console.log("state.formData",state.formData);
		} else {
			ElMessage.error('获取轮播图详情失败！')
			state.formData.loading = false;
		}
	} else {
		flag.value = true;
	}
}

// 添加轮播图
const disabled = ref(false)

const handleChange: UploadProps['onChange'] = async (file: uploadFile, uploadFiles) => {
	state.formData.loading = true;
	if (file.raw.type === 'image/png' || file.raw.type === 'image/jpeg' || file.raw.type === 'image/jpg') {
		state.formData.fileList = uploadFiles;
		uploadDisabled.value = true;
		try {
			const formdata = new FormData();
			formdata.append('file', file.raw);
			let res = await banApi.uploadFile(formdata);
			console.log("result", res);
			console.log("state.formData", state.formData);
			if(res?.success){
				// state.formData.url = jpgFormatter(res);
				state.formData.path = res.data.path;
				ElMessage({
					message: '图片上传成功！',
					type: 'success',
				})
				state.formData.loading = false;
			}else{
				ElMessage.error('图片上传失败！');
			}
		} catch (error) {
			state.formData.loading = false;
			console.log(error);
			
			ElMessage.error('图片上传失败！');
		}
	} else {
		ElMessageBox.alert('轮播图的格式不正确，请重新选择！', '提示', {
			confirmButtonText: '确定',
		})
		console.log("handleChange3",uploadFiles);
		uploadFiles.pop()
		console.log("handleChange4",uploadFiles);
		uploadDisabled.value = false;
	}
}

const dialogImageUrl = ref('')
const dialogVisible = ref(false)

const handlePictureCardPreview = (file: UploadFile,uploadFiles) => {
  dialogImageUrl.value = file.url!
  dialogVisible.value = true
}

const uploadRef = ref();

const handleRemove = (file: UploadFile, uploadFiles) => {
	console.log("handleRemove1",file);
	console.log("handleRemove2",uploadFiles);
	uploadRef.value.clearFiles();
	state.formData.path = "";
	console.log("handleRemove3",uploadFiles);
	uploadDisabled.value = false;

}
// 删除轮播图
const deleteBanner = (id: number) => {
	console.log("删除",id);
	ElMessageBox.confirm('确定要删除该轮播图吗?', '提示', {
		confirmButtonText: '确定',
		cancelButtonText: '取消',
		type: 'warning',
	})
	.then(async() => {
		try {
			state.tableData.loading = true;
			let res = await banApi.deleteBanner(id);
			if(res?.success){ 
				await getTableData();
				ElMessage.success('轮播图删除成功！');
			} else ElMessage.error('轮播图删除失败！');
		} catch(e) {
			ElMessage.error('删除失败！');
		} finally {
			state.tableData.loading = false;
		}
	}).catch(() => {
    })
} 

const loading = ref(false)

//保存
const submitForm = (decision) => {
	ruleFormRef.value?.validate(async(valid: boolean) => {
		if (valid) {
			if (decision) {
				console.log("新增新增新增");
				loading.value = true;
				const form = { ...state.formData };
				console.log('submitForm', form);
				try {
					let res = await banApi.addBanner(form);
					console.log("submitFormREs", res);
					if(res?.success){
						ElMessage({
							message: '保存成功！',
							type: 'success',
						})
						loading.value = false;
						getTableData();
						dialog.value = false;
					}
				} catch (error) {
					console.log(error);
					ElMessage.error('保存失败！');
					loading.value = false;
				}
			} else {
				console.log("编辑编辑编辑");
				const form = { ...state.formData };
				console.log('submitForm', form);
				try {
					let res = await banApi.updateBanner(form);
					console.log("submitFormREs", res);
					if(res?.success){
						ElMessage({
							message: '保存成功！',
							type: 'success',
						})
						loading.value = false;
						getTableData();
						dialog.value = false;
					}
				} catch (error) {
					console.log(error);
					ElMessage.error('保存失败！');
					loading.value = false;
				}
			}
        }else{
			ElMessage.error('请填写必要信息！');
			loading.value = false;
			// dialog.value = false
			// loading.value = false
		}
    });
}

// 表单重置
const resetForm = () => {
	ruleFormRef.value?.resetFields();
	// state.formData.fileList.pop();
	uploadDisabled.value = false;
}

//取消 
const cancelForm = () => {
	dialog.value = false;
	resetForm();
	console.log(state);
	
}
// #endregion

onMounted(() => {
	getTableData();
})

</script>

<style scoped lang="scss">

.add-banner {
  width: 100%; // 让按钮的宽度与表格的行一样
  margin: 16px 0;
  text-align: center;
  color: #409eff;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px; // 与表格行高度一致
  border: 2px dashed #dcdfe6;
  border-radius: 8px;
}


.system-dept-container {
  :deep(.el-card__body) {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow-y: auto;
    max-height: 1000px; // 固定最大高度
    padding: 20px;

    .el-table {
      flex: 1;
      width: 100%;
      table-layout: fixed; // 表格均分布局
    }

    // .el-table th, .el-table td {
    //   text-align: center;
    //   padding: 12px 8px;
    //   word-break: break-all;
    // }
  }
};

::v-deep .el-image {
  width: 250px; // 固定图片宽度
  height: 150px; // 固定图片高度
  object-fit: cover; // 图片居中剪裁
  display: block;
}

img[alt="加载失败"] {
  content: url('path_to_placeholder_image.png'); // 加载失败时显示占位图片
  width: 250px; // 确保占位图片大小一致
  height: 100px;
}

::v-deep .el-table__body{
	width: 100% !important;
}

::v-deep .el-table__body-wrapper .el-table__row {
  margin-bottom: 10px;  // 增加底部间距，让卡片分隔更明显
  border: 1px solid #dcdfe6;  // 更宽的边框，使其明显
  border-radius: 8px;  // 圆角
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);  // 更强的阴影
  background-color: #fff;
  overflow: hidden;  // 确保内容被边框包裹住
}


::v-deep .el-drawer .el-drawer__header {
	margin: 15px 0 20px 0!important;
    border-bottom: 0!important;
}
::v-deep .el-drawer__title {
    font-size: 28px!important;
}
::v-deep .el-form-item--large{
    --font-size: 18px;
    margin-bottom: 28px!important;
}

.demo-drawer__footer{
	margin:40px 0 0 150px!important;
}

::v-deep .disabled{
    .el-upload--picture-card{
      display: none;
    }
  }

</style>