merchant onboarding process completed

Singer_Hexdive/Services/FunctionHandlers/MerchantManager.cs

@@ -0,0 +1,71 @@
+using Singer_Hexdive.Exceptions;
+using Singer_Hexdive.Interfaces.ServiceInterfaces;
+using Singer_Hexdive.Models.IOs;
+
+namespace Singer_Hexdive.Services.FunctionHandlers
+{
+    public class MerchantManager
+    {
+        private readonly Dictionary<string, Func<object, Task<object>>> _functionHandler;
+
+        public MerchantManager(BaseMerchantService merchantService)
+        {
+            _functionHandler = new()
+            {
+                {"PostM_PersonalDetails", merchantService.PostM_PersonalDetails }
+            };
+        }
+
+        public async Task<ApiResponse<object>> Execute(ApiRequest request)
+        {
+
+
+            if (!_functionHandler.TryGetValue(request.FunctionName, out var handler))
+            {
+                return new ApiResponse<object>
+                {
+                    StatusCode = 404,
+                    Message = $"Function '{request.FunctionName}' not found.",
+                    Data = null
+                };
+            }
+            try
+            {
+                var results = await handler(request.Payload);
+                return new ApiResponse<object>
+                {
+                    StatusCode = 200,
+                    Message = "success",
+                    Data = results
+                };
+            }
+            catch (NotfoundException ex)
+            {
+                return new ApiResponse<object>
+                {
+                    StatusCode = 404,
+                    Message = ex.Message,
+                    Data = null
+                };
+            }
+            catch (InvalidOperationException ex)
+            {
+                return new ApiResponse<object>
+                {
+                    StatusCode = 400,
+                    Message = ex.Message,
+                    Data = null
+                };
+            }
+            catch (ArgumentException ex)
+            {
+                return new ApiResponse<object>
+                {
+                    StatusCode = 500,
+                    Message = ex.Message,
+                    Data = null
+                };
+            }
+        }
+    }
+}