<template>
	<el-dialog v-model="dialogVisible" :title="titleMap[type-1]" :width="type==1?680:460" destroy-on-close append-to-body @closed="$emit('closed')">

		<template v-if="type==1">
			<div class="sc-user-select">
				<div class="sc-user-select__left">
					<div class="sc-user-select__search">
						<el-input v-model="keyword" prefix-icon="el-icon-search" placeholder="搜索成员">
							<template #append>
								<el-button icon="el-icon-search" @click="search"></el-button>
							</template>
						</el-input>
					</div>
					<div class="sc-user-select__select">
						<div class="sc-user-select__tree" v-loading="showGrouploading">
							<el-scrollbar>
								<el-tree class="menu" ref="groupTree" :data="group" :node-key="groupProps.key" :props="groupProps" highlight-current :expand-on-click-node="false" :current-node-key="groupId" @node-click="groupClick"/>
							</el-scrollbar>
						</div>
						<div class="sc-user-select__user" v-loading="showUserloading">
							<div class="sc-user-select__user__list">
								<el-scrollbar ref="userScrollbar">
									<el-tree class="menu" ref="userTree" :data="user" :node-key="userProps.key" :props="userProps" :default-checked-keys="selectedIds" show-checkbox check-on-click-node @check-change="userClick"></el-tree>
								</el-scrollbar>
							</div>
							<footer>
								<el-pagination background layout="prev,next" small :total="total" :page-size="pageSize" v-model:currentPage="currentPage" @current-change="paginationChange"></el-pagination>
							</footer>
						</div>
					</div>
				</div>
				<div class="sc-user-select__toicon"><el-icon><el-icon-arrow-right /></el-icon></div>
				<div class="sc-user-select__selected">
					<header>已选 ({{selected.length}})</header>
					<ul>
						<el-scrollbar>
							<li v-for="(item, index) in selected" :key="item.id">
								<span class="name">
									<el-avatar size="small">{{item.name.substring(0,1)}}</el-avatar>
									<label>{{item.name}}</label>
								</span>
								<span class="delete">
									<el-button type="danger" icon="el-icon-delete" circle size="small" @click="deleteSelected(index)"></el-button>
								</span>
							</li>
						</el-scrollbar>
					</ul>
				</div>
			</div>
		</template>

		<template v-if="type==2">
			<div class="sc-user-select sc-user-select-role">
				<div class="sc-user-select__left">
					<div class="sc-user-select__select">
						<div class="sc-user-select__tree" v-loading="showGrouploading">
							<el-scrollbar>
								<el-tree class="menu" ref="groupTree" :data="role" :node-key="roleProps.key" :props="roleProps" show-checkbox check-strictly check-on-click-node :expand-on-click-node="false" :default-checked-keys="selectedIds" @check-change="roleClick"/>
							</el-scrollbar>
						</div>
					</div>
				</div>
				<div class="sc-user-select__toicon"><el-icon><el-icon-arrow-right /></el-icon></div>
				<div class="sc-user-select__selected">
					<header>已选 ({{selected.length}})</header>
					<ul>
						<el-scrollbar>
							<li v-for="(item, index) in selected" :key="item.id">
								<span class="name">
									<label>{{item.name}}</label>
								</span>
								<span class="delete">
									<el-button type="danger" icon="el-icon-delete" circle size="small" @click="deleteSelected(index)"></el-button>
								</span>
							</li>
						</el-scrollbar>
					</ul>
				</div>
			</div>
		</template>


		<template #footer>
			<el-button @click="dialogVisible = false">取 消</el-button>
			<el-button type="primary" @click="save">确 认</el-button>
		</template>
	</el-dialog>
</template>

<script>
	import config from "@/config/workflow";

	export default {
		props: {
			modelValue: { type: Boolean, default: false }
		},
		data() {
			return {
				groupProps: config.group.props,
				userProps: config.user.props,
				roleProps: config.role.props,

				titleMap: ['人员选择', '角色选择'],
				dialogVisible: false,
				showGrouploading: false,
				showUserloading: false,
				keyword: '',
				groupId: '',
				pageSize: config.user.pageSize,
				total: 0,
				currentPage: 1,
				group: [],
				user: [],
				role: [],
				type: 1,
				selected: [],
				value: []
			}
		},
		computed: {
			selectedIds(){
				return this.selected.map(t => t.id)
			}
		},
		mounted() {

		},
		methods: {
			//打开赋值
			open(type, data){
				this.type = type
				this.value = data||[]
				this.selected = JSON.parse(JSON.stringify(data||[]))
				this.dialogVisible = true

				if(this.type==1){
					this.getGroup()
					this.getUser()
				}else if(this.type==2){
					this.getRole()
				}

			},
			//获取组织
			async getGroup(){
				this.showGrouploading = true;
				var res = await config.group.apiObj.get();
				this.showGrouploading = false;
				var allNode = {[config.group.props.key]: '', [config.group.props.label]: '所有'}
				res.data.unshift(allNode);
				this.group = config.group.parseData(res).rows
			},
			//获取用户
			async getUser(){
				this.showUserloading = true;
				var params = {
					[config.user.request.keyword]: this.keyword || null,
					[config.user.request.groupId]: this.groupId || null,
					[config.user.request.page]: this.currentPage,
					[config.user.request.pageSize]: this.pageSize
				}
				var res = await config.user.apiObj.get(params);
				this.showUserloading = false;
				this.user =  config.user.parseData(res).rows;
				this.total = config.user.parseData(res).total || 0;
				this.$refs.userScrollbar.setScrollTop(0)
			},
			//获取角色
			async getRole(){
				this.showGrouploading = true;
				var res = await config.role.apiObj.get();
				this.showGrouploading = false;
				this.role = config.role.parseData(res).rows
			},
			//组织点击
			groupClick(data){
				this.keyword = ''
				this.currentPage = 1
				this.groupId = data[config.group.props.key]
				this.getUser()
			},
			//用户点击
			userClick(data, checked){
				if(checked){
					this.selected.push({
						id: data[config.user.props.key],
						name: data[config.user.props.label]
					})
				}else{
					this.selected = this.selected.filter(item => item.id != data[config.user.props.key])
				}
			},
			//用户分页点击
			paginationChange(){
				this.getUser()
			},
			//用户搜索
			search(){
				this.groupId = ''
				this.$refs.groupTree.setCurrentKey(this.groupId)
				this.currentPage = 1
				this.getUser()
			},
			//删除已选
			deleteSelected(index){
				this.selected.splice(index,1);
				if(this.type==1){
					this.$refs.userTree.setCheckedKeys(this.selectedIds)
				}else if(this.type==2){
					this.$refs.groupTree.setCheckedKeys(this.selectedIds)
				}
			},
			//角色点击
			roleClick(data, checked){
				if(checked){
					this.selected.push({
						id: data[config.role.props.key],
						name: data[config.role.props.label]
					})
				}else{
					this.selected = this.selected.filter(item => item.id != data[config.role.props.key])
				}
			},
			//提交保存
			save(){
				this.value.splice(0,this.value.length);
				this.selected.map(item => {
					this.value.push(item)
				})
				this.dialogVisible = false
			}
		}
	}
</script>

<style scoped>
	.sc-user-select {display: flex;}
	.sc-user-select__left {width: 400px;}
	.sc-user-select__right {flex: 1;}

	.sc-user-select__search {padding-bottom:10px;}

	.sc-user-select__select {display: flex;border: 1px solid var(--el-border-color-light);background: var(--el-color-white);}
	.sc-user-select__tree {width: 200px;height:300px;border-right: 1px solid var(--el-border-color-light);}
	.sc-user-select__user {width: 200px;height:300px;display: flex;flex-direction: column;}
	.sc-user-select__user__list {flex: 1;overflow: auto;}
	.sc-user-select__user footer {height:36px;padding-top:5px;border-top: 1px solid var(--el-border-color-light);}

	.sc-user-select__toicon {display: flex;justify-content: center;align-items: center;margin:0 10px;}
	.sc-user-select__toicon i {display: flex;justify-content: center;align-items: center;background: #ccc;width: 20px;height: 20px;text-align: center;line-height: 20px;border-radius:50%;color: #fff;}

	.sc-user-select__selected {height:345px;width: 200px;border: 1px solid var(--el-border-color-light);background: var(--el-color-white);}
	.sc-user-select__selected header {height:43px;line-height: 43px;border-bottom: 1px solid var(--el-border-color-light);padding:0 15px;font-size: 12px;}
	.sc-user-select__selected ul {height:300px;overflow: auto;}
	.sc-user-select__selected li {display: flex;align-items: center;justify-content: space-between;padding:5px 5px 5px 15px;height:38px;}
	.sc-user-select__selected li .name {display: flex;align-items: center;}
	.sc-user-select__selected li .name .el-avatar {background: #409eff;margin-right: 10px;}
	.sc-user-select__selected li .name label {}
	.sc-user-select__selected li .delete {display: none;}
	.sc-user-select__selected li:hover {background: var(--el-color-primary-light-9);}
	.sc-user-select__selected li:hover .delete {display: inline-block;}

	.sc-user-select-role .sc-user-select__left {width: 200px;}
	.sc-user-select-role .sc-user-select__tree {border: none;height: 343px;}
	.sc-user-select-role .sc-user-select__selected {}

	[data-theme='dark'] .sc-user-select__selected li:hover {background: rgba(0, 0, 0, 0.2);}
	[data-theme='dark'] .sc-user-select__toicon i {background: #383838;}
</style>
