refactor: add new environment so we can generate swagger spec without connecting to DB

Author: hezbims

Inv_Backend_NET/Program.cs

@@ -1,4 +1,5 @@
 using Inventory_Backend_NET.Startup;
+using Inventory_Backend_NET.Startup.Constant;
 using Inventory_Backend_NET.TestOnlyEndpoint;
 
 namespace Inventory_Backend_NET;
@@ -20,12 +21,13 @@ public static void Main(string[] args)
 
 
         var app = builder.Build();
-        app.MigrateDatabases();
+        if (!app.Environment.IsEnvironment(Env.ApiSpecGen))
+            app.MigrateDatabases();
 
         var containsSeederKeyword = app.HandleSeedingCommandFromCli(args: args);
         if (containsSeederKeyword) return;
 
-        if (app.Environment.IsEnvironment("Local") || app.Environment.IsEnvironment("E2E"))
+        if (app.Environment.IsEnvironment(Env.Local) || app.Environment.IsEnvironment(Env.E2E))
         {
             app.UseSwaggerUI();
         }

Inv_Backend_NET/Startup/Constant/Env.cs

@@ -0,0 +1,13 @@
+namespace Inventory_Backend_NET.Startup.Constant;
+
+internal static class Env
+{
+    internal const string Local = "Local";
+    
+    internal const string E2E = "E2E";
+    
+    /// <summary>
+    /// Ignore DB Connection when generating OpenAPI Spec
+    /// </summary>
+    internal const string ApiSpecGen = "OpenAPI-Spec-Gen";
+}

Inv_Backend_NET/Startup/PrepareDependencyInjection.cs

@@ -4,6 +4,7 @@
 using Inventory_Backend_NET.Fitur.Barang._Dependency;
 using Inventory_Backend_NET.Fitur.Logging;
 using Inventory_Backend_NET.Fitur.Pengajuan._Dependency;
+using Inventory_Backend_NET.Startup.Constant;
 using Inventory_Backend_NET.Startup.Service;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc.Authorization;
@@ -42,11 +43,14 @@ public static WebApplicationBuilder PrepareDependencyInjectionServices(this WebA
             options.Filters.Add(new AuthorizeFilter(policy)); // 👈 Global AuthGuard
         });
 
-        string connectionString = builder
-            .Configuration
-            .GetConnectionString(MyConstants.AppSettingsKey.InventoryDbConnectionString)!;
+        if (!builder.Environment.IsEnvironment(Env.ApiSpecGen))
+        {
+            string connectionString = builder
+                .Configuration
+                .GetConnectionString(MyConstants.AppSettingsKey.InventoryDbConnectionString)!;
 
-        builder.Services.PrepareMyDbContextWithInterceptor(connectionString);
+            builder.Services.PrepareMyDbContextWithInterceptor(connectionString);
+        }
 
         return builder;
     }