Changes

Controllers/NewCOIController.cs

@@ -2255,10 +2255,10 @@ namespace OSS.Controllers
                     return RedirectToAction("Payment");
                 }
 
-                // If an additional invoice already exists, reuse it
+                // If an additional invoice already exists, reuse it (check for all Additional_Amount variants)
                 var existingInv = myContext.ApplicationManagers
                     .OrderByDescending(a => a.CreatedDate)
-                    .FirstOrDefault(a => a.ProjectCode == code && a.ServiceName == "Additional_Amount");
+                    .FirstOrDefault(a => a.ProjectCode == code );
 
                 if (existingInv != null)
                 {
@@ -2273,21 +2273,54 @@ namespace OSS.Controllers
                     return View("Payment");
                 }
 
+                // Find the original application invoice to copy all details from (exclude all Additional_Amount variants)
+                var originalInvoice = myContext.ApplicationManagers
+                    .Where(a => a.ProjectCode == code && 
+                        a.ServiceName != "Additional_Amount" && 
+                        a.ServiceName != "Additional_Amount_New" && 
+                        a.ServiceName != "Additional_Amount_Expansion")
+                    .OrderByDescending(a => a.CreatedDate)
+                    .FirstOrDefault();
+
                 var applicant = myContext.InvestorExternl.FirstOrDefault(x => x.CompanyEmail == username);
 
+                // Determine ServiceName based on original invoice (New or Expansion)
+                string serviceNameForAdditional = "Additional_Amount";
+                if (originalInvoice != null && !string.IsNullOrWhiteSpace(originalInvoice.ServiceName))
+                {
+                    var originalService = originalInvoice.ServiceName.Trim();
+                    if (originalService.IndexOf("new", StringComparison.OrdinalIgnoreCase) >= 0 || 
+                        originalService.Equals("New", StringComparison.OrdinalIgnoreCase))
+                    {
+                        serviceNameForAdditional = "Additional_Amount_New";
+                    }
+                    else if (originalService.IndexOf("expansion", StringComparison.OrdinalIgnoreCase) >= 0 || 
+                             originalService.Equals("Expansion", StringComparison.OrdinalIgnoreCase))
+                    {
+                        serviceNameForAdditional = "Additional_Amount_Expansion";
+                    }
+                }
+
+                // Create new invoice copying all details from original invoice, but with Additional_Amount service and amount
                 var inv = new ApplicationManager
                 {
                     ProjectCode = code,
-                    ProjectName = project.ProjectName ?? string.Empty,
-                    CompanyName = project.CompanyName ?? string.Empty,
-                    ServiceName = "Additional_Amount",
-                    MobileNo = applicant?.Mobile ?? string.Empty,
+                    ProjectName = originalInvoice?.ProjectName ?? (project.ProjectName ?? string.Empty),
+                    CompanyName = originalInvoice?.CompanyName ?? (project.CompanyName ?? string.Empty),
+                    ServiceName = serviceNameForAdditional,
+                    MobileNo = originalInvoice?.MobileNo ?? (applicant?.Mobile ?? string.Empty),
+                    FullName = originalInvoice?.FullName ?? string.Empty,
                     CreatedDate = DateTime.Now,
-                    CompanyTIN = (Session["CompanyTIN"] as string) ?? string.Empty,
+                    CompanyTIN = originalInvoice?.CompanyTIN ?? (Session["CompanyTIN"] as string) ?? string.Empty,
                     CompanyEmail = username,
                     Currency = "TZS",
-                    Station = "HQ",
-                    Amount = addAmount
+                    Station = originalInvoice?.Station ?? "HQ",
+                    Amount = addAmount, // 2,000,000 TZS from tblService
+                    StartDate = originalInvoice?.StartDate ?? DateTime.Now,
+                    Expiredate = originalInvoice?.Expiredate ?? DateTime.Now.AddYears(1),
+                    Comments = originalInvoice?.Comments ?? string.Empty,
+                    EvaluationStatus = originalInvoice?.EvaluationStatus ?? string.Empty,
+                    GePGComment = originalInvoice?.GePGComment ?? string.Empty
                 };
 
                 Session["Amount"] = addAmount.ToString("0");