Add flag for credit

src/Managing.Infrastructure.Web3/Services/KaigenService.cs

@@ -26,6 +26,7 @@ public class KaigenService : IKaigenService
     private readonly KaigenSettings _settings;
     private readonly ILogger<KaigenService> _logger;
     private readonly JsonSerializerOptions _jsonOptions;
+    private readonly bool _creditsEnabled;
 
     public KaigenService(IOptions<KaigenSettings> options, ILogger<KaigenService> logger)
     {
@@ -37,6 +38,16 @@ public class KaigenService : IKaigenService
             PropertyNamingPolicy = JsonNamingPolicy.CamelCase
         };
 
+        // Check if credits are enabled via environment variable
+        var creditsEnabledEnv = Environment.GetEnvironmentVariable("KAIGEN_CREDITS_ENABLED");
+        _creditsEnabled = string.IsNullOrEmpty(creditsEnabledEnv) || creditsEnabledEnv.ToLower() == "true";
+        
+        if (!_creditsEnabled)
+        {
+            _logger.LogInformation("Kaigen credits are disabled via KAIGEN_CREDITS_ENABLED environment variable");
+            return; // Skip private key validation if credits are disabled
+        }
+
         // Always read from environment variable for security
         var envPrivateKey = Environment.GetEnvironmentVariable("KAIGEN_PRIVATE_KEY");
         if (!string.IsNullOrEmpty(envPrivateKey))
@@ -45,7 +56,7 @@ public class KaigenService : IKaigenService
             _logger.LogInformation("Using KAIGEN_PRIVATE_KEY from environment variable");
         }
 
-        // Validate required settings
+        // Validate required settings only if credits are enabled
         if (string.IsNullOrEmpty(_settings.PrivateKey))
         {
             throw new InvalidOperationException("Kaigen PrivateKey is not configured. Please set the KAIGEN_PRIVATE_KEY environment variable.");
@@ -59,6 +70,15 @@ public class KaigenService : IKaigenService
 
     public async Task<string> DebitUserCreditsAsync(User user, decimal debitAmount)
     {
+        // If credits are disabled, return a dummy request ID
+        if (!_creditsEnabled)
+        {
+            var dummyRequestId = Guid.NewGuid().ToString();
+            _logger.LogInformation("Credits disabled - skipping debit for user {UserName}. Returning dummy request ID {RequestId}", 
+                user.Name, dummyRequestId);
+            return dummyRequestId;
+        }
+
         try
         {
             var walletAddress = GetUserWalletAddress(user);
@@ -110,6 +130,14 @@ public class KaigenService : IKaigenService
 
     public async Task<bool> RefundUserCreditsAsync(string requestId, User user)
     {
+        // If credits are disabled, return true (success) immediately
+        if (!_creditsEnabled)
+        {
+            _logger.LogInformation("Credits disabled - skipping refund for user {UserName} with request ID {RequestId}", 
+                user.Name, requestId);
+            return true;
+        }
+
         try
         {
             var walletAddress = GetUserWalletAddress(user);