<template>
	<view class="login-page">
		<!-- 背景装饰 -->
		<view class="bg-decoration">
			<view class="bg-circle bg-circle-1"></view>
			<view class="bg-circle bg-circle-2"></view>
			<view class="bg-circle bg-circle-3"></view>
		</view>

		<!-- 顶部品牌区 - 弹性入场 -->
		<view class="brand-area elastic-in">
			<view class="brand-icon">
				<text class="brand-icon-text">G</text>
			</view>
			<text class="brand-title">GymManage</text>
			<text class="brand-subtitle">教练工作台</text>
		</view>

		<!-- 登录卡片 - 延迟入场 -->
		<view class="login-card fade-in-up" style="animation-delay:0.15s">
			<view class="card-header">
				<text class="card-title">教练登录</text>
				<text class="card-desc">请输入您的账号信息</text>
			</view>

			<view class="form-group">
				<text class="form-label">用户名</text>
				<input
					class="login-input"
					:value="username"
					@input="username = $event.detail.value"
					type="text"
					placeholder="请输入用户名"
					:disabled="loading"
				/>
			</view>

			<view class="form-group">
				<text class="form-label">密码</text>
				<input
					class="login-input"
					:value="password"
					@input="password = $event.detail.value"
					type="password"
					placeholder="请输入密码"
					:disabled="loading"
				/>
			</view>

			<transition name="fade">
				<view v-if="errorMsg" class="error-msg">
					<text>{{ errorMsg }}</text>
				</view>
			</transition>

			<button
				class="btn-login"
				:class="{ 'is-loading': loading }"
				:disabled="loading"
				@tap="handleLogin"
			>
				<view v-if="loading" class="btn-spinner"></view>
				<text>{{ loading ? '登录中...' : '登  录' }}</text>
			</button>
		</view>

		<!-- 底部提示 -->
		<text class="footer-hint">GymManage 智能健身房管理系统 v1.0</text>
	</view>
</template>

<script>
import { useAuthStore } from '@/store/auth.js'
import { showToast } from '@/utils/index.js'

export default {
	data() {
		return {
			username: '',
			password: '',
			loading: false,
			errorMsg: ''
		}
	},
	methods: {
		async handleLogin() {
			if (!this.username || !this.password) {
				this.errorMsg = '请输入用户名和密码'
				return
			}
			this.loading = true
			this.errorMsg = ''
			try {
				const authStore = useAuthStore()
				await authStore.login(this.username, this.password)
				showToast('登录成功', 'success')
				setTimeout(() => {
					uni.reLaunch({ url: '/pages/index/index' })
				}, 500)
			} catch (e) {
				console.error('登录失败:', e)
				const msg = e?.data?.message || e?.message || '登录失败，请检查用户名和密码'
				this.errorMsg = msg
			} finally {
				this.loading = false
			}
		}
	}
}
</script>

<style scoped>
.login-page {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	background: linear-gradient(160deg, #f0f4ff 0%, #e8eef8 40%, #f6f8fc 100%);
	padding: 32px 24px;
	position: relative;
	overflow: hidden;
}

/* ============================================
   背景装饰圆
   ============================================ */
.bg-decoration {
	position: absolute;
	inset: 0;
	pointer-events: none;
	overflow: hidden;
}

.bg-circle {
	position: absolute;
	border-radius: 50%;
	opacity: 0.06;
}

.bg-circle-1 {
	width: 300px;
	height: 300px;
	background: #4f7cff;
	top: -80px;
	right: -60px;
	animation: bgFloat1 8s ease-in-out infinite;
}

.bg-circle-2 {
	width: 200px;
	height: 200px;
	background: #10b981;
	bottom: 10%;
	left: -40px;
	animation: bgFloat2 10s ease-in-out infinite;
}

.bg-circle-3 {
	width: 150px;
	height: 150px;
	background: #f59e0b;
	bottom: 30%;
	right: -30px;
	animation: bgFloat3 7s ease-in-out infinite;
}

@keyframes bgFloat1 {
	0%, 100% { transform: translate(0, 0) rotate(0deg); }
	50%      { transform: translate(20px, -20px) rotate(10deg); }
}

@keyframes bgFloat2 {
	0%, 100% { transform: translate(0, 0) rotate(0deg); }
	50%      { transform: translate(-15px, 15px) rotate(-8deg); }
}

@keyframes bgFloat3 {
	0%, 100% { transform: translate(0, 0) rotate(0deg); }
	50%      { transform: translate(-10px, -15px) rotate(5deg); }
}

/* ============================================
   品牌区
   ============================================ */
.brand-area {
	display: flex;
	flex-direction: column;
	align-items: center;
	margin-bottom: 40px;
	position: relative;
	z-index: 1;
}

.brand-icon {
	width: 64px;
	height: 64px;
	background: linear-gradient(145deg, #4f7cff, #3b5fd9);
	border-radius: 18px;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: 0 12px 28px rgba(79, 124, 255, 0.35);
	margin-bottom: 16px;
	transition: transform 0.3s ease;
}

.brand-icon:active {
	transform: scale(0.92) rotate(-5deg);
}

.brand-icon-text {
	color: #ffffff;
	font-size: 32px;
	font-weight: 700;
}

.brand-title {
	font-size: 26px;
	font-weight: 700;
	color: #0b1a33;
	letter-spacing: -0.5px;
}

.brand-subtitle {
	font-size: 14px;
	color: #6b7d94;
	margin-top: 6px;
}

/* ============================================
   登录卡片
   ============================================ */
.login-card {
	width: 100%;
	background: #ffffff;
	border-radius: 20px;
	padding: 32px 24px;
	box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
	position: relative;
	z-index: 1;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.login-card:focus-within {
	box-shadow: 0 8px 40px rgba(79, 124, 255, 0.1);
}

.card-header {
	margin-bottom: 28px;
}

.card-title {
	font-size: 20px;
	font-weight: 600;
	color: #1e293b;
	display: block;
	margin-bottom: 6px;
}

.card-desc {
	font-size: 13px;
	color: #94a3b8;
}

/* ============================================
   表单
   ============================================ */
.form-group {
	margin-bottom: 20px;
}

.form-label {
	display: block;
	font-size: 13px;
	font-weight: 600;
	color: #334155;
	margin-bottom: 8px;
}

.login-input {
	display: block;
	width: 100%;
	height: 48px;
	min-height: 48px;
	padding: 0 16px;
	border: 1px solid #e2e8f0;
	border-radius: 10px;
	font-size: 16px;
	color: #1e293b;
	background: #f8fafc;
	outline: none;
	box-sizing: border-box;
	line-height: 48px;
	transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.login-input:focus {
	border-color: #4f7cff;
	background: #ffffff;
	box-shadow: 0 0 0 3px rgba(79, 124, 255, 0.1);
}

/* ============================================
   错误消息 - 抖动动画
   ============================================ */
.error-msg {
	background: #fef2f2;
	border: 1px solid #fecaca;
	border-radius: 10px;
	padding: 10px 14px;
	margin-bottom: 16px;
	animation: errorShake 0.4s ease-out;
}

@keyframes errorShake {
	0%, 100% { transform: translateX(0); }
	20%      { transform: translateX(-6px); }
	40%      { transform: translateX(6px); }
	60%      { transform: translateX(-3px); }
	80%      { transform: translateX(3px); }
}

.error-msg text {
	font-size: 13px;
	color: #ef4444;
}

/* ============================================
   登录按钮
   ============================================ */
.btn-login {
	width: 100%;
	height: 48px;
	background: linear-gradient(145deg, #4f7cff, #3b5fd9);
	color: #ffffff;
	border: none;
	border-radius: 12px;
	font-size: 16px;
	font-weight: 600;
	display: flex;
	align-items: center;
	justify-content: center;
	margin-top: 8px;
	box-shadow: 0 6px 18px rgba(79, 124, 255, 0.3);
	transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
	position: relative;
	overflow: hidden;
}

.btn-login::after {
	content: '';
	position: absolute;
	inset: 0;
	background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 60%);
	opacity: 0;
	transition: opacity 0.2s;
}

.btn-login:active::after { opacity: 1; }

.btn-login:active {
	transform: scale(0.97);
	box-shadow: 0 3px 10px rgba(79, 124, 255, 0.25);
}

.btn-login.is-loading {
	opacity: 0.8;
}

.btn-login .btn-spinner {
	margin-right: 10px;
}

/* ============================================
   底部提示
   ============================================ */
.footer-hint {
	font-size: 12px;
	color: #c0c8d4;
	margin-top: 32px;
	position: relative;
	z-index: 1;
}
</style>
