// Login 管理员登录页
export default {
    template: `
        <div class="min-h-screen bg-gray-100 flex items-center justify-center px-4">
            <div class="max-w-sm w-full bg-white rounded-lg shadow-md p-8">
                <div class="text-center mb-6">
                    <h1 class="text-2xl font-bold text-red-600">祈福小助手</h1>
                    <p class="text-gray-500 text-sm mt-1">管理后台登录</p>
                </div>
                <form @submit.prevent="submit">
                    <div class="mb-4">
                        <label class="block text-sm font-medium text-gray-700 mb-1">管理密码</label>
                        <input
                            v-model="password"
                            type="password"
                            autocomplete="current-password"
                            placeholder="请输入 ADMIN_PASSWORD"
                            class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-red-500 focus:border-transparent"
                            :disabled="loading"
                        />
                    </div>
                    <div v-if="error" class="mb-4 text-sm text-red-600">{{ error }}</div>
                    <button
                        type="submit"
                        :disabled="loading || !password"
                        class="w-full bg-red-600 text-white py-2 rounded-md hover:bg-red-700 disabled:opacity-50 disabled:cursor-not-allowed transition"
                    >
                        {{ loading ? '登录中...' : '登 录' }}
                    </button>
                </form>
            </div>
        </div>
    `,
    data() {
        return {
            password: '',
            loading: false,
            error: ''
        };
    },
    methods: {
        async submit() {
            if (!this.password || this.loading) return;
            this.loading = true;
            this.error = '';
            try {
                const res = await fetch('/admin/login', {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({ password: this.password })
                });
                const data = await res.json();
                if (data.code === 0) {
                    // Cookie 已由服务端写入，跳回原本要访问的页面
                    window.location.href = window.location.pathname === '/admin/login'
                        ? '/admin/'
                        : window.location.pathname;
                } else {
                    this.error = data.msg || '登录失败';
                }
            } catch (e) {
                this.error = '网络错误，请重试';
            } finally {
                this.loading = false;
            }
        }
    }
};