<template>
	<div class="login_bg">
		<div class="login_adv" style="background-image: url(img/auth_banner.jpg);">
			<div class="login_adv__title">
				<h2>SCUI</h2>
				<h4>{{ $t('login.slogan') }}</h4>
				<p>{{ $t('login.describe') }}</p>
				<div>
					<span>
						<el-icon><sc-icon-vue /></el-icon>
					</span>
					<span>
						<el-icon class="add"><el-icon-plus /></el-icon>
					</span>
					<span>
						<el-icon><el-icon-eleme-filled /></el-icon>
					</span>
				</div>
			</div>
			<div class="login_adv__mask"></div>
			<div class="login_adv__bottom">
				© {{$CONFIG.APP_NAME}} {{$CONFIG.APP_VER}}
			</div>
		</div>
		<div class="login_main">
			<div class="login_config">
				<el-button :icon="config.theme=='dark'?'el-icon-sunny':'el-icon-moon'" circle type="info" @click="configDark"></el-button>
				<el-dropdown trigger="click" placement="bottom-end" @command="configLang">
					<el-button circle>
						<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 512 512"><path d="M478.33 433.6l-90-218a22 22 0 0 0-40.67 0l-90 218a22 22 0 1 0 40.67 16.79L316.66 406h102.67l18.33 44.39A22 22 0 0 0 458 464a22 22 0 0 0 20.32-30.4zM334.83 362L368 281.65L401.17 362z" fill="currentColor"></path><path d="M267.84 342.92a22 22 0 0 0-4.89-30.7c-.2-.15-15-11.13-36.49-34.73c39.65-53.68 62.11-114.75 71.27-143.49H330a22 22 0 0 0 0-44H214V70a22 22 0 0 0-44 0v20H54a22 22 0 0 0 0 44h197.25c-9.52 26.95-27.05 69.5-53.79 108.36c-31.41-41.68-43.08-68.65-43.17-68.87a22 22 0 0 0-40.58 17c.58 1.38 14.55 34.23 52.86 83.93c.92 1.19 1.83 2.35 2.74 3.51c-39.24 44.35-77.74 71.86-93.85 80.74a22 22 0 1 0 21.07 38.63c2.16-1.18 48.6-26.89 101.63-85.59c22.52 24.08 38 35.44 38.93 36.1a22 22 0 0 0 30.75-4.9z" fill="currentColor"></path></svg>
					</el-button>
					<template #dropdown>
						<el-dropdown-menu>
							<el-dropdown-item v-for="item in lang" :key="item.value" :command="item" :class="{'selected':config.lang==item.value}">{{item.name}}</el-dropdown-item>
						</el-dropdown-menu>
					</template>
				</el-dropdown>
			</div>
			<div class="login-form">
				<div class="login-header">
					<div class="logo">
						<img :alt="$CONFIG.APP_NAME" src="img/logo.png">
						<label>{{$CONFIG.APP_NAME}}</label>
					</div>
					<h2>{{ $t('login.signInTitle') }}</h2>
				</div>
				<el-form ref="loginForm" :model="ruleForm" :rules="rules" label-width="0" size="large">
					<el-form-item prop="user">
						<el-input v-model="ruleForm.user" prefix-icon="el-icon-user" clearable :placeholder="$t('login.userPlaceholder')">
							<template #append>
								<el-select v-model="userType" style="width: 130px;">
									<el-option :label="$t('login.admin')" value="admin"></el-option>
									<el-option :label="$t('login.user')" value="user"></el-option>
								</el-select>
							</template>
						</el-input>
					</el-form-item>
					<el-form-item prop="password">
						<el-input v-model="ruleForm.password" prefix-icon="el-icon-lock" clearable show-password :placeholder="$t('login.PWPlaceholder')"></el-input>
					</el-form-item>
					<el-form-item style="margin-bottom: 10px;">
							<el-col :span="12">
								<el-checkbox :label="$t('login.rememberMe')" v-model="ruleForm.autologin"></el-checkbox>
							</el-col>
							<el-col :span="12" style="text-align: right;">
								<el-link type="primary" :underline="false">{{ $t('login.forgetPassword') }}？</el-link>
							</el-col>
					</el-form-item>
					<el-form-item>
						<el-button type="primary" style="width: 100%;" :loading="islogin" round @click="login">{{ $t('login.signIn') }}</el-button>
					</el-form-item>
				</el-form>

				<el-divider>{{ $t('login.signInOther') }}</el-divider>

				<div class="login-oauth">
					<el-button size="small" type="success" icon="sc-icon-wechat" circle></el-button>
				</div>
			</div>
		</div>
	</div>
</template>

<script>
	export default {
		data() {
			return {
				userType: 'admin',
				ruleForm: {
					user: "admin",
					password: "admin",
					autologin: false
				},
				rules: {
					user: [
						{required: true, message: this.$t('login.userError'), trigger: 'blur'}
					],
					password: [
						{required: true, message: this.$t('login.PWError'), trigger: 'blur'}
					]
				},
				islogin: false,
				config: {
					lang: this.$TOOL.data.get('APP_LANG') || this.$CONFIG.LANG,
					dark: this.$TOOL.data.get('APP_DARK') || false
				},
				lang: [
					{
						name: '简体中文',
						value: 'zh-cn',
					},
					{
						name: 'English',
						value: 'en',
					},
					{
						name: '日本語',
						value: 'ja',
					}
				]
			}
		},
		watch:{
			userType(val){
				if(val == 'admin'){
					this.ruleForm.user = 'admin'
					this.ruleForm.password = 'admin'
				}else if(val == 'user'){
					this.ruleForm.user = 'user'
					this.ruleForm.password = 'user'
				}
			},
			'config.dark'(val){
				if(val){
					document.documentElement.classList.add("dark")
					this.$TOOL.data.set("APP_DARK", val)
				}else{
					document.documentElement.classList.remove("dark")
					this.$TOOL.data.remove("APP_DARK")
				}
			},
			'config.lang'(val){
				this.$i18n.locale = val
				this.$TOOL.data.set("APP_LANG", val)
			}
		},
		created: function() {
			this.$TOOL.data.remove("TOKEN")
			this.$TOOL.data.remove("USER_INFO")
			this.$TOOL.data.remove("MENU")
			this.$TOOL.data.remove("PERMISSIONS")
			this.$TOOL.data.remove("grid")
			this.$store.commit("clearViewTags")
			this.$store.commit("clearKeepLive")
			this.$store.commit("clearIframeList")
			console.log('%c SCUI %c Gitee: https://gitee.com/lolicode/scui', 'background:#666;color:#fff;border-radius:3px;', '')
		},
		methods: {
			async login(){

				var validate = await this.$refs.loginForm.validate().catch(()=>{})
				if(!validate){ return false }

				this.islogin = true
				var data = {
					username: this.ruleForm.user,
					password: this.$TOOL.crypto.MD5(this.ruleForm.password)
				}
				//获取token
				var user = await this.$API.auth.token.post(data)
				if(user.code == 200){
					this.$TOOL.cookie.set("TOKEN", user.data.token, {
						expires: this.ruleForm.autologin? 24*60*60 : 0
					})
					this.$TOOL.data.set("USER_INFO", user.data.userInfo)
				}else{
					this.islogin = false
					this.$message.warning(user.message)
					return false
				}
				//获取菜单
				var menu = null
				if(this.ruleForm.user == 'admin'){
					menu = await this.$API.system.menu.myMenus.get()
				}else{
					menu = await this.$API.demo.menu.get()
				}
				if(menu.code == 200){
					if(menu.data.menu.length==0){
						this.islogin = false
						this.$alert("当前用户无任何菜单权限，请联系系统管理员", "无权限访问", {
							type: 'error',
							center: true
						})
						return false
					}
					this.$TOOL.data.set("MENU", menu.data.menu)
					this.$TOOL.data.set("PERMISSIONS", menu.data.permissions)
				}else{
					this.islogin = false
					this.$message.warning(menu.message)
					return false
				}

				this.$router.replace({
					path: '/'
				})
				this.$message.success("Login Success 登录成功")
				this.islogin = false
			},
			configDark(){
				this.config.dark = this.config.dark ? false : true
			},
			configLang(command){
				this.config.lang = command.value
			}
		}
	}
</script>

<style scoped>
	.login_bg {width: 100%;height: 100%;background: #fff;display: flex;}
	.login_adv {width: 33.33333%;background-color: #555;background-size: cover;background-position: center center;background-repeat: no-repeat;position: relative;}
	.login_adv__title {color: #fff;padding: 40px;position: absolute;top:0px;left:0px;right: 0px;z-index: 2;}
	.login_adv__title h2 {font-size: 40px;}
	.login_adv__title h4 {font-size: 18px;margin-top: 10px;font-weight: normal;}
	.login_adv__title p {font-size: 14px;margin-top:10px;line-height: 1.8;color: rgba(255,255,255,0.6);}
	.login_adv__title div {margin-top: 10px;display: flex;align-items: center;}
	.login_adv__title div span {margin-right: 15px;}
	.login_adv__title div i {font-size: 40px;}
	.login_adv__title div i.add {font-size: 20px;color: rgba(255,255,255,0.6);}
	.login_adv__bottom {position: absolute;left:0px;right: 0px;bottom: 0px;color: #fff;padding: 40px;background-image:linear-gradient(transparent, #000);z-index: 3;}
	.login_adv__mask {position: absolute;top:0px;left:0px;right: 0px;bottom: 0px;background: rgba(0,0,0,0.5);z-index: 1;}

	.login_main {flex: 1;overflow: auto;display:flex;}
	.login-form {width: 400px;margin: auto;padding:20px 0;}
	.login-header {margin-bottom: 20px;}
	.login-header .logo {display: flex;align-items: center;}
	.login-header .logo img {width: 35px;height: 35px;vertical-align: bottom;margin-right: 10px;}
	.login-header .logo label {font-size: 24px;}
	.login-header h2 {font-size: 24px;font-weight: bold;margin-top: 50px;}
	.login-oauth {display: flex;justify-content:space-around;}
	.login-form .el-divider {margin-top:40px;}

	.login_config {position: absolute;top:20px;right: 20px;}
	.el-dropdown-menu__item.selected {color: var(--el-color-primary);}

	@media (max-width: 1200px){
		.login-form {width: 340px;}
	}
	@media (max-width: 1000px){
		.login_main {display: block;}
		.login-form {width:100%;padding:20px 40px;}
		.login_adv {display: none;}
	}
</style>
