'use client';

import React, { useState, useEffect } from 'react';
import { Modal, Button, Spin, message } from 'antd';
import { CheckCircleOutlined, CloseCircleOutlined } from '@ant-design/icons';
import { Loader2 } from 'lucide-react';
import { baseUrl } from '@/lib/env';

interface TwitterCallbackModalProps {
  /** 是否显示弹框 */
  visible: boolean;
  /** 关闭弹框回调 */
  onClose: () => void;
  /** 项目信息 */
  project: {
    project_id: string;
    name?: string;
    final_video_url?: string;
    final_simple_video_url?: string;
  };
  /** URL 参数 */
  urlParams: {
    state: string;
    code: string;
  };
}

enum CallbackStatus {
  LOADING = 'loading',
  SUCCESS = 'success',
  FAILED = 'failed'
}

export default function TwitterCallbackModal({ 
  visible, 
  onClose, 
  project, 
  urlParams 
}: TwitterCallbackModalProps) {
  const [callbackStatus, setCallbackStatus] = useState<CallbackStatus>(CallbackStatus.LOADING);
  const [callbackData, setCallbackData] = useState<any>(null);

  /**
   * 处理 Twitter 授权回调
   */
  const handleTwitterCallback = async () => {
    try {
      setCallbackStatus(CallbackStatus.LOADING);
      
      // 从localStorage获取用户信息
      const currentUser = JSON.parse(localStorage.getItem('currentUser') || '{}');
      const userId = currentUser.id || currentUser.userId;
      
      if (!userId) {
        throw new Error('用户ID不存在，请先登录');
      }

      // 调用 Twitter 授权回调接口
      const response = await fetch(`${baseUrl}/api/video-share/x/auth/callback?state=${encodeURIComponent(urlParams.state)}&code=${encodeURIComponent(urlParams.code)}`, {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'Authorization': `Bearer ${localStorage.getItem('token') || ''}`
        }
      });

      const data = await response.json();

      if (data.successful && data.code === 0) {
        setCallbackData(data.data);
        setCallbackStatus(CallbackStatus.SUCCESS);
        message.success('Twitter 授权成功！');
      } else {
        throw new Error(data.message || 'Twitter 授权回调失败');
      }
    } catch (error) {
      console.error('Twitter 授权回调失败:', error);
      setCallbackStatus(CallbackStatus.FAILED);
      message.error(`Twitter 授权失败: ${error instanceof Error ? error.message : '未知错误'}`);
    }
  };

  // 组件挂载时自动处理回调
  useEffect(() => {
    if (visible && urlParams.state && urlParams.code) {
      handleTwitterCallback();
    }
  }, [visible, urlParams.state, urlParams.code]);

  /**
   * 重新尝试授权
   */
  const handleRetry = () => {
    setCallbackStatus(CallbackStatus.LOADING);
    handleTwitterCallback();
  };

  /**
   * 关闭弹框
   */
  const handleClose = () => {
    setCallbackStatus(CallbackStatus.LOADING);
    setCallbackData(null);
    onClose();
  };

  return (
    <Modal
      title={
        <div className="flex items-center gap-2">
          <div className="w-5 h-5 rounded-full bg-blue-400 flex items-center justify-center">
            <span className="text-white text-xs font-bold">X</span>
          </div>
          <span className="text-white font-medium">Twitter 授权回调</span>
        </div>
      }
      open={visible}
      onCancel={handleClose}
      footer={null}
      width={480}
      className="twitter-callback-modal"
      styles={{
        content: {
          backgroundColor: 'rgba(27, 27, 27, 0.8)',
          backdropFilter: 'blur(20px)',
          border: '1px solid rgba(255, 255, 255, 0.1)',
        },
        header: {
          backgroundColor: 'rgba(27, 27, 27, 0.6)',
          backdropFilter: 'blur(20px)',
          borderBottom: '1px solid rgba(255, 255, 255, 0.1)',
        },
        body: {
          backgroundColor: 'transparent',
        }
      }}
    >
      <div className="space-y-6">
        {/* 项目信息 */}
        <div className="bg-black/20 backdrop-blur-sm rounded-lg p-4 border border-white/20">
          <h3 className="text-white font-medium text-sm mb-2">
            分享视频: {project.name || 'Unnamed Project'}
          </h3>
          <p className="text-white/50 text-xs">
            视频链接: {project.final_video_url || project.final_simple_video_url || 'N/A'}
          </p>
        </div>

        {/* 回调状态显示 */}
        <div className="flex flex-col items-center space-y-4">
          {callbackStatus === CallbackStatus.LOADING && (
            <>
              <Loader2 className="w-12 h-12 animate-spin text-blue-400" />
              <div className="text-center">
                <p className="text-white font-medium mb-1">正在处理 Twitter 授权...</p>
                <p className="text-white/60 text-sm">请稍候，正在验证授权信息</p>
              </div>
            </>
          )}

          {callbackStatus === CallbackStatus.SUCCESS && (
            <>
              <CheckCircleOutlined className="w-12 h-12 text-green-400" />
              <div className="text-center">
                <p className="text-white font-medium mb-1">授权成功！</p>
                <p className="text-white/60 text-sm mb-4">
                  Twitter 授权已完成，可以开始分享视频
                </p>
                {callbackData && (
                  <div className="bg-green-500/10 border border-green-500/20 rounded-lg p-3 mb-4">
                    <p className="text-green-400 text-xs">
                      授权 Token: {callbackData.access_token ? '已获取' : '未获取'}
                    </p>
                  </div>
                )}
                <Button 
                  type="primary" 
                  onClick={handleClose}
                  className="bg-blue-500 hover:bg-blue-600 border-blue-500"
                >
                  完成
                </Button>
              </div>
            </>
          )}

          {callbackStatus === CallbackStatus.FAILED && (
            <>
              <CloseCircleOutlined className="w-12 h-12 text-red-400" />
              <div className="text-center">
                <p className="text-white font-medium mb-1">授权失败</p>
                <p className="text-white/60 text-sm mb-4">
                  Twitter 授权处理失败，请重试
                </p>
                <div className="flex gap-2 justify-center">
                  <Button 
                    type="default" 
                    onClick={handleRetry}
                    className="bg-gray-600 hover:bg-gray-700 border-gray-600"
                  >
                    重试
                  </Button>
                  <Button 
                    type="default" 
                    onClick={handleClose}
                    className="bg-gray-600 hover:bg-gray-700 border-gray-600"
                  >
                    关闭
                  </Button>
                </div>
              </div>
            </>
          )}
        </div>
      </div>
    </Modal>
  );
}