src/pages/Recharge/Recharge.jsx

// import React, { useState } from 'react';
// import axios from 'axios';
// import { useUser } from '../../context/UserContext';

// const Recharge = () => {
//   const [amount, setAmount] = useState('');
//   const [loading, setLoading] = useState(false);
//   const [message, setMessage] = useState('');

//   // 从上下文获取当前登录用户
//   const { user } = useUser();
//   const userId = user?.userId;

//   const handleRecharge = async () => {
//     if (!userId) {
//       setMessage('未登录，无法充值');
//       return;
//     }
//     if (!amount || isNaN(amount) || Number(amount) <= 0) {
//       setMessage('请输入有效的充值金额');
//       return;
//     }
//     setLoading(true);
//     setMessage('');
//     try {
//       // 充值接口调用，注意后端用的是请求参数形式传递 userId 和 amount
//       const response = await axios.post('/echo/user/recharge', null, {
//         params: {
//           userId,
//           amount: Number(amount),
//         },
//       });
//       setMessage(response.data.message || '充值成功！');
//       setAmount('');
//     } catch (error) {
//       setMessage(error.response?.data?.message || '充值失败，请重试');
//     } finally {
//       setLoading(false);
//     }
//   };

//   return (
//     <div className="recharge-page">
//       <h2>充值服务</h2>
//       <div>
//         <label>
//           充值金额：
//           <input
//             type="number"
//             min="1"
//             value={amount}
//             onChange={(e) => setAmount(e.target.value)}
//             disabled={loading}
//           />
//         </label>
//       </div>
//       <button onClick={handleRecharge} disabled={loading}>
//         {loading ? '处理中...' : '提交充值'}
//       </button>
//       {message && <p>{message}</p>}
//     </div>
//   );
// };

// export default Recharge;
import React, { useState } from 'react';
import axios from 'axios';
import { useUser } from '../../context/UserContext';

const Recharge = () => {
  const [amount, setAmount] = useState('');
  const [loading, setLoading] = useState(false);
  const [message, setMessage] = useState('');
  const [showPayDialog, setShowPayDialog] = useState(false);
  const [payProcessing, setPayProcessing] = useState(false);

  const { user } = useUser();
  const userId = user?.userId;

  // 点击提交充值，打开模拟支付弹窗
  const handleSubmit = () => {
    if (!userId) {
      setMessage('未登录，无法充值');
      return;
    }
    if (!amount || isNaN(amount) || Number(amount) <= 0) {
      setMessage('请输入有效的充值金额');
      return;
    }
    setMessage('');
    setShowPayDialog(true);
  };

  // 模拟支付弹窗点击“确认支付”
  const handlePayConfirm = async () => {
    setPayProcessing(true);
    setMessage('');

    // 模拟支付等待 2 秒
    setTimeout(async () => {
      try {
        // 支付成功后调用后端充值接口
        const response = await axios.post('/echo/user/recharge', null, {
          params: {
            userId,
            amount: Number(amount),
          },
        });

        setMessage(response.data.message || '充值成功！');
        setAmount('');
      } catch (error) {
        setMessage(error.response?.data?.message || '充值失败，请重试');
      } finally {
        setPayProcessing(false);
        setShowPayDialog(false);
      }
    }, 2000);
  };

  // 取消支付弹窗
  const handlePayCancel = () => {
    setShowPayDialog(false);
    setMessage('支付已取消');
  };

  return (
    <div className="recharge-page" style={{ maxWidth: 400, margin: 'auto', padding: 20 }}>
      <h2>充值服务</h2>
      <div style={{ marginBottom: 12 }}>
        <label>
          充值金额：
          <input
            type="number"
            min="1"
            value={amount}
            onChange={(e) => setAmount(e.target.value)}
            disabled={loading || payProcessing}
            style={{ marginLeft: 8, width: 120 }}
          />
        </label>
      </div>
      <button onClick={handleSubmit} disabled={loading || payProcessing}>
        {loading || payProcessing ? '处理中...' : '提交充值'}
      </button>

      {message && <p style={{ marginTop: 12 }}>{message}</p>}

      {/* 模拟支付弹窗 */}
      {showPayDialog && (
        <div
          style={{
            position: 'fixed',
            top: 0, left: 0, right: 0, bottom: 0,
            backgroundColor: 'rgba(0,0,0,0.5)',
            display: 'flex',
            justifyContent: 'center',
            alignItems: 'center',
            zIndex: 1000,
          }}
        >
          <div
            style={{
              backgroundColor: '#fff',
              padding: 20,
              borderRadius: 8,
              width: 300,
              textAlign: 'center',
              boxShadow: '0 0 10px rgba(0,0,0,0.25)',
            }}
          >
            <h3>模拟支付</h3>
            <p>支付金额：{amount} 元</p>

            {payProcessing ? (
              <p>支付处理中，请稍候...</p>
            ) : (
              <>
                <button onClick={handlePayConfirm} style={{ marginRight: 10 }}>
                  确认支付
                </button>
                <button onClick={handlePayCancel}>取消</button>
              </>
            )}
          </div>
        </div>
      )}
    </div>
  );
};

export default Recharge;