<template>
  <div class="login-container">
    <!-- 左侧励志区域 -->
    <div class="login-left">
      <div class="left-content">
        <div class="quote-text">
          <span class="quote-mark">“</span>
          <div class="quote-content">
            <p>不负时代韶华，</p>
            <p>争做时代新人。</p>
          </div>
        </div>
      </div>
    </div>

    <!-- 右侧登录表单区域 -->
    <div class="login-right">
      <div class="login-form-container">
        <!-- Logo和标题区域 -->
        <div class="login-header">
          <div class="logo-section">
            <div class="logo">
              <img src="@/assets/imgs/logo-icon.svg" alt="Logo" />
            </div>
            <h1 class="platform-title">红色思政学习平台</h1>
          </div>
          <h2 class="login-title">账号登陆</h2>
        </div>
        
        <!-- 登录表单 -->
        <el-form
          ref="loginFormRef"
          :model="loginForm"
          :rules="loginRules"
          class="login-form"
          @submit.prevent="handleLogin"
        >
          <el-form-item prop="username">
            <el-input
              v-model="loginForm.username"
              placeholder="请输入学号"
              class="form-input"
            />
          </el-form-item>
          
          <el-form-item prop="password">
            <el-input
              v-model="loginForm.password"
              type="password"
              placeholder="请输入密码"
              show-password
              class="form-input"
            />
          </el-form-item>
          
          <el-form-item>
            <div class="login-options">
              <div class="remember-me">
                <el-checkbox v-model="loginForm.rememberMe">
                  自动登录
                </el-checkbox>
              </div>
              <el-link type="primary" @click="goToForgotPassword" class="forgot-password">
                忘记密码？
              </el-link>
            </div>
          </el-form-item>
          
          <el-form-item>
            <el-button
              type="primary"
              :loading="loginLoading"
              @click="handleLogin"
              class="login-button"
            >
              登录
            </el-button>
            <p class="agreement-text">
              登录即为同意<span class="agreement-link" style="color: red">《红色思政智能体平台》</span>
            </p>
          </el-form-item>
        </el-form>
        
      </div>
      <!-- 底部信息 -->
      <div class="login-footer">
        <p class="register-link">
          没有账号？<span class="register-link-text" @click="goToRegister">现在就注册</span>
        </p>
        <p class="copyright">
          Copyright ©红色思政智能体平台
        </p>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, onMounted } from 'vue';
import { useRouter, useRoute } from 'vue-router';
import { useStore } from 'vuex';
import { ElMessage, type FormInstance, type FormRules } from 'element-plus';
import type { LoginParam } from '@/types';
import { authApi } from '@/apis/system/auth';

// 响应式引用
const loginFormRef = ref<FormInstance>();
const loginLoading = ref(false);
const showCaptcha = ref(false);
const captchaImage = ref('');

// Composition API
const router = useRouter();
const route = useRoute();
const store = useStore();

// 表单数据
const loginForm = reactive<LoginParam>({
  username: '',
  password: '',
  captcha: '',
  captchaId: '',
  rememberMe: false
});

// 表单验证规则
const loginRules: FormRules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 3, max: 20, message: '用户名长度为3-20个字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { min: 6, message: '密码至少6个字符', trigger: 'blur' }
  ],
  captcha: [
    { required: true, message: '请输入验证码', trigger: 'blur' },
    { len: 4, message: '验证码为4位', trigger: 'blur' }
  ]
};

// 方法
const handleLogin = async () => {
  if (!loginFormRef.value) return;
  
  try {
    const valid = await loginFormRef.value.validate();
    if (!valid) return;
    
    loginLoading.value = true;
    
    // 调用store中的登录action
    const result = await store.dispatch('auth/login', loginForm);
    
    ElMessage.success('登录成功！');
    
    // 优先使用 query 中的 redirect，其次使用返回的 redirectUrl，最后使用默认首页
    const redirectPath = (route.query.redirect as string) || result.redirectUrl || '/home';
    router.push(redirectPath);
    
  } catch (error: any) {
    console.error('登录失败:', error);
    ElMessage.error(error.message || '登录失败，请检查用户名和密码');
    
    // 登录失败后显示验证码
    showCaptcha.value = true;
    refreshCaptcha();
  } finally {
    loginLoading.value = false;
  }
};

const refreshCaptcha = async () => {
  try {
    const result = await authApi.getCaptcha();
    if (result.data) {
      captchaImage.value = result.data.captchaImage;
      loginForm.captchaId = result.data.captchaId;
    }
  } catch (error) {
    console.error('获取验证码失败:', error);
    ElMessage.error('获取验证码失败');
  }
};

function goToRegister() {
  router.push('/register');
}

function goToForgotPassword() {
  router.push('/forgot-password');
}

// 组件挂载时检查是否需要显示验证码
onMounted(() => {
  // 可以根据需要决定是否默认显示验证码
  // refreshCaptcha();
});
</script>

<style lang="scss" scoped>
.login-container {

  display: flex;
  width: 100%;
  height: 80%;
  max-width: 1142px;
  margin: auto auto;
  box-shadow: 0px 4px 30px 0px rgba(176, 196, 225, 0.25);
  border-radius: 30px;
  overflow: hidden;
  justify-content: center;
  align-items: center;
}

.login-left {
  height: 100%;
  flex: 1;
  display: flex;
  /* min-height: 671px; */
  padding: 113px 120px;
  border-radius: 30px 0 0 30px;
  overflow: hidden;
  background: url(/schoolNewsWeb/src/assets/imgs/login-bg.png);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  
  .left-content {
    width: 100%;
    max-width: 350px;
  }
  
  .quote-text {
    color: #FFF2D3;
    
    .quote-mark {
      font-family: 'Arial Black', sans-serif;
      font-weight: 900;
      font-size: 71.096px;
      line-height: 0.74;
      display: block;
      margin-left: 1.48px;
    }
    
    .quote-content {
      margin-top: 46.66px;
      
      p {
        font-family: 'Taipei Sans TC Beta', 'PingFang SC', sans-serif;
        font-weight: 700;
        font-size: 50px;
        line-height: 1.42;
        margin: 0;
      }
    }
  }
}

.login-right {
  flex: 1;
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  border-radius: 0 30px 30px 0;
  padding: 40px 0;
}

.login-form-container {
  width: 287px;
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.login-header {
  margin-bottom: 24px;
  
  .logo-section {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 16px;
    
    .logo {
      width: 36px;
      height: 36px;
      background: #C62828;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 3px;
      
      img {
        width: 30px;
        height: 30px;
      }
    }
    
    .platform-title {
      font-family: 'Taipei Sans TC Beta', sans-serif;
      font-weight: 700;
      font-size: 26px;
      line-height: 1.31;
      color: #141F38;
      margin: 0;
    }
  }
  
  .login-title {
    font-family: 'PingFang SC', sans-serif;
    font-weight: 600;
    font-size: 16px;
    line-height: 1.5;
    color: #141F38;
    margin: 0;
  }
}

.login-form {
  .form-input {
    width: 100%;
    height: 48px;
    background: #F2F3F5;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    color: rgba(0, 0, 0, 0.3);
    
    &::placeholder {
      color: rgba(0, 0, 0, 0.3);
    }
    
    &:focus {
      outline: none;
      background: #FFFFFF;
      border: 1px solid #C62828;
    }
  }
  
  .login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 16px;
    
    .remember-me {
      display: flex;
      align-items: center;
      gap: 4px;
      
      .el-checkbox {
        font-size: 12px;
        color: rgba(0, 0, 0, 0.3);
        
        .el-checkbox__label {
          font-size: 12px;
          line-height: 1.67;
        }
      }
    }
    
    .forgot-password {
      font-size: 12px;
      color: rgba(0, 0, 0, 0.3);
      text-decoration: none;
      
      &:hover {
        color: #C62828;
      }
    }
  }
  
  .login-button {
    width: 100%;
    height: 46px;
    background: #C62828;
    border: none;
    border-radius: 12px;
    color: #FFFFFF;
    font-family: 'PingFang SC', sans-serif;
    font-weight: 500;
    font-size: 16px;
    line-height: 1.4;
    margin-bottom: 8px;
    
    &:hover {
      background: #B71C1C;
    }
  }
  
  .agreement-text {
    font-family: 'PingFang SC', sans-serif;
    font-weight: 400;
    font-size: 10px;
    line-height: 1.8;
    color: rgba(0, 0, 0, 0.3);
    text-align: center;
    margin: 0;
  }
}

.login-footer {
  width: 100%;
  
  .register-link {
    font-family: 'PingFang SC', sans-serif;
    font-weight: 600;
    font-size: 12px;
    line-height: 1.83;
    color: #141F38;
    text-align: center;
    margin: 0 0 16px 0;
 
    .register-link-text {
      cursor: pointer;
      color: #ff0000;
      &:hover {
        color: #C62828;
      }
    }
  }
  
  .copyright {
    font-family: 'PingFang SC', sans-serif;
    font-size: 12px;
    line-height: 2;
    color: #D9D9D9;
    text-align: center;
    padding-bottom: 0;
  }
}

// 响应式设计
@media (max-width: 768px) {
  .login-container {
    flex-direction: column;
    border-radius: 0;
    min-height: 100vh;
  }
  
  .login-left {
    min-height: 300px;
    padding: 40px;
    
    .left-content {
      max-width: 100%;
    }
    
    .quote-text {
      .quote-mark {
        font-size: 50px;
      }
      
      .quote-content p {
        font-size: 36px;
      }
    }
  }
  
  .login-right {
    min-height: auto;
    padding: 20px;
  }
  
  .login-form-container {
    width: 100%;
    max-width: 400px;
  }
}
</style>
