public class BluesnapIntegration {
    
    // Bluesnap API端点
    private static final String BLUESNAP_API_URL = 'https://sandbox.bluesnap.com/services/2/';
    
    // 认证信息
    private static final String USERNAME = 'your_username';
    private static final String PASSWORD = 'your_password';
    
    // 创建Bluesnap订单
    public static String createOrder(Id accountId, Decimal amount, String currencyCode) {
        HttpRequest req = new HttpRequest();
        req.setEndpoint(BLUESNAP_API_URL + 'orders');
        req.setMethod('POST');
        req.setHeader('Content-Type', 'application/json');
        req.setHeader('Authorization', 'Basic ' + EncodingUtil.base64Encode(Blob.valueOf(USERNAME + ':' + PASSWORD)));
        
        // 构建请求体
        Map<String, Object> requestBody = new Map<String, Object>{
            'amount' => amount,
            'currency' => currencyCode,
            'softDescriptor' => 'Salesforce Order',
            'cardTransactionType' => 'AUTH_CAPTURE',
            'recurringTransaction' => 'ECOMMERCE'
        };
        
        req.setBody(JSON.serialize(requestBody));
        
        Http http = new Http();
        HttpResponse res = http.send(req);
        
        if (res.getStatusCode() == 201) {
            // 成功创建订单
            Map<String, Object> response = (Map<String, Object>)JSON.deserializeUntyped(res.getBody());
            String orderId = (String)response.get('orderId');
            
            // 更新Salesforce记录
            updateSalesforceRecord(accountId, orderId, amount);
            
            return orderId;
        } else {
            // 处理错误
            throw new BluesnapException('Error creating order: ' + res.getBody());
        }
    }
    
    private static void updateSalesforceRecord(Id accountId, String orderId, Decimal amount) {
        // 更新Account或创建相关记录
        Account acc = [SELECT Id, Name FROM Account WHERE Id = :accountId];
        Payment__c payment = new Payment__c(
            Account__c = accountId,
            Amount__c = amount,
            Payment_Date__c = Date.today(),
            Bluesnap_Order_Id__c = orderId,
            Status__c = 'Processed'
        );
        insert payment;
    }
    
    public class BluesnapException extends Exception {}
}