import React, { useState } from 'react';
import { View, Text, Button, Image } from '@tarojs/components';
import Taro from '@tarojs/taro';
import { wechat_auth_login, save_login_state } from '../../../services/loginService';
import './index.scss';

const LoginPage: React.FC = () => {
  const [is_loading, set_is_loading] = useState(false);
  const [agree_terms, set_agree_terms] = useState(false);
  const [show_terms_layer, set_show_terms_layer] = useState(false);

  // 微信授权登录
  const handle_wechat_login = async (e: any) => {
    if (!agree_terms) {
      set_show_terms_layer(true);
      Taro.showToast({
        title: '请先同意用户协议',
        icon: 'none',
        duration: 2000
      });
      return;
    }

    // 检查是否获取到手机号
    if (!e.detail || !e.detail.code) {
      Taro.showToast({
        title: '获取手机号失败，请重试',
        icon: 'none',
        duration: 2000
      });
      return;
    }

    set_is_loading(true);
    try {
      // 传递手机号code给登录服务
      const response = await wechat_auth_login(e.detail.code);
      if (response.success) {
        save_login_state(response.token!, response.user_info!);

        setTimeout(() => {
          Taro.redirectTo({ url: '/pages/list/index' });
        }, 200);
      } else {
        Taro.showToast({
          title: response.message,
          icon: 'none',
          duration: 2000
        });
      }
    } catch (error) {
      Taro.showToast({
        title: '登录失败，请重试',
        icon: 'none',
        duration: 2000
      });
    } finally {
      set_is_loading(false);
    }
  };

  // 手机号验证码登录
  const handle_phone_login = async () => {
    if (!agree_terms) {
      set_show_terms_layer(true);
      Taro.showToast({
        title: '请先同意用户协议',
        icon: 'none',
        duration: 2000
      });
      return;
    }

    // 跳转到验证码页面
    Taro.navigateTo({
      url: '/pages/login/verification/index'
    });
  };

  // 同意协议并关闭浮层
  const handle_agree_terms = () => {
    set_agree_terms(true);
    set_show_terms_layer(false);
  };

  // 切换协议同意状态（复选框用）
  const handle_toggle_terms = () => {
    set_agree_terms(!agree_terms);
  };

  // 查看协议
  const handle_view_terms = (type: string = 'terms') => {
    Taro.navigateTo({
      url: `/pages/login/terms/index?type=${type}`
    });
  };

  // 点击浮层外部关闭浮层
  const handle_overlay_click = () => {
    set_show_terms_layer(false);
  };

  // 点击浮层内部阻止事件冒泡
  const handle_layer_click = (e: any) => {
    e.stopPropagation();
  };

  return (
    <View className="login_page">
      <View className="background_image">
        <Image
          className="bg_img"
          src="http://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/2e00dea1-8723-42fe-ae42-84fe38e9ac3f.png"
          mode="aspectFill"
        />
        <View className="bg_overlay"></View>
      </View>

      {/* 主要内容 */}
      <View className="main_content">
        {/* 品牌区域 */}
        <View className="brand_section">
          <View className="logo_container" >

          </View>

          <View className="slogan_container">

          </View>
        </View>

        {/* 登录按钮区域 */}
        <View className="login_section">
          {/* 微信快捷登录 */}
          <Button
            className={`login_button wechat_button ${is_loading ? 'loading' : ''}`}
            openType="getPhoneNumber"
            onGetPhoneNumber={handle_wechat_login}
            disabled={is_loading}
          >
            <View className="wechat_icon">
              <Image className="wechat_logo" src={require('../../../static/login/wechat_icon.svg')} />
            </View>
            <Text className="button_text">
              {is_loading ? '登录中...' : '微信快捷登录'}
            </Text>
          </Button>

          {/* 手机号验证码登录 */}
          <Button
            className="login_button phone_button"
            onClick={handle_phone_login}
          >
            <View className="phone_icon">
              <Image className="phone_logo" src={require('../../../static/login/phone_icon.svg')} />
            </View>
            <Text className="button_text">手机号验证码登录</Text>
          </Button>

          {/* 用户协议复选框 */}
          <View className="terms_checkbox_section">
            <View className="checkbox_container" onClick={handle_toggle_terms}>
              <View className={`checkbox ${agree_terms ? 'checked' : ''}`}>
                {agree_terms && <View className="checkmark"></View>}
              </View>
            </View>
            <View className="terms_text_container">
              <Text className="terms_text">我已阅读、理解并接受以下规定</Text>
              <Text
                className="terms_link"
                onClick={() => handle_view_terms('terms')}
              >
                《开场的条款和条件》
              </Text>
              <Text
                className="terms_link"
                onClick={() => handle_view_terms('binding')}
              >
                《开场与微信号绑定协议》
              </Text>
              <Text
                className="terms_link"
                onClick={() => handle_view_terms('privacy')}
              >
                《隐私权政策》
              </Text>
            </View>
          </View>
        </View>
      </View>

      {/* 底部条款浮层遮罩 */}
      {show_terms_layer && (
        <View className="terms_overlay" onClick={handle_overlay_click}>
          {/* 底部条款浮层 */}
          <View className="terms_float_layer" onClick={handle_layer_click}>
            {/* 浮层标题 */}
            <View className="float_title">
              <Text className="title_text">请阅读并同意以下条款</Text>
            </View>

            {/* 条款列表 */}
            <View className="terms_list">
              <Text
                className="terms_item"
                onClick={() => handle_view_terms('terms')}
              >
                《开场的条款和条件》
              </Text>
              <Text
                className="terms_item"
                onClick={() => handle_view_terms('binding')}
              >
                《开场与微信号绑定协议》
              </Text>
              <Text
                className="terms_item"
                onClick={() => handle_view_terms('privacy')}
              >
                《隐私权政策》
              </Text>
            </View>

            {/* 同意按钮 */}
            <Button
              className={`agree_button ${agree_terms ? 'agreed' : ''}`}
              onClick={handle_agree_terms}
            >
              {agree_terms ? '已同意' : '同意并继续'}
            </Button>


          </View>
        </View>
      )}
    </View>
  );
};

export default LoginPage;