feat(persistence): add provider-specific Postgres DbContexts and initial EF migrations (API/Auth)

Author: Diogo-Ferraz

src/TaskManagement.Api/Infrastructure/Persistence/Configuration/DatabaseConfiguration.cs

@@ -11,28 +11,34 @@ public static IServiceCollection AddDatabaseConfiguration(this IServiceCollectio
             var sqlServerConnectionString = configuration.GetConnectionString("TaskManagementDbConnection");
             var postgresConnectionString = configuration.GetConnectionString("TaskManagementDbConnectionPostgres");
 
-            services.AddDbContext<TaskManagementDbContext>(options =>
+            if (IsPostgres(databaseProvider))
             {
-                if (IsPostgres(databaseProvider))
+                if (string.IsNullOrWhiteSpace(postgresConnectionString))
                 {
-                    if (string.IsNullOrWhiteSpace(postgresConnectionString))
-                    {
-                        throw new InvalidOperationException("Connection string 'TaskManagementDbConnectionPostgres' not found.");
-                    }
+                    throw new InvalidOperationException("Connection string 'TaskManagementDbConnectionPostgres' not found.");
+                }
 
+                services.AddDbContext<TaskManagementDbContextPostgres>(options =>
+                {
                     options.UseNpgsql(postgresConnectionString,
                         npgsqlOptions => npgsqlOptions.EnableRetryOnFailure(
                             maxRetryCount: 5,
                             maxRetryDelay: TimeSpan.FromSeconds(10),
                             errorCodesToAdd: null));
-                    return;
-                }
+                });
 
-                if (string.IsNullOrWhiteSpace(sqlServerConnectionString))
-                {
-                    throw new InvalidOperationException("Connection string 'TaskManagementDbConnection' not found.");
-                }
+                services.AddScoped<TaskManagementDbContext>(sp =>
+                    sp.GetRequiredService<TaskManagementDbContextPostgres>());
+                return services;
+            }
 
+            if (string.IsNullOrWhiteSpace(sqlServerConnectionString))
+            {
+                throw new InvalidOperationException("Connection string 'TaskManagementDbConnection' not found.");
+            }
+
+            services.AddDbContext<TaskManagementDbContext>(options =>
+            {
                 options.UseSqlServer(sqlServerConnectionString,
                     sqlServerOptions => sqlServerOptions.EnableRetryOnFailure(
                         maxRetryCount: 5,

src/TaskManagement.Api/Infrastructure/Persistence/DesignTime/TaskManagementDbContextPostgresFactory.cs

@@ -0,0 +1,20 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Design;
+
+namespace TaskManagement.Api.Infrastructure.Persistence.DesignTime
+{
+    public sealed class TaskManagementDbContextPostgresFactory : IDesignTimeDbContextFactory<TaskManagementDbContextPostgres>
+    {
+        public TaskManagementDbContextPostgres CreateDbContext(string[] args)
+        {
+            var connectionString =
+                Environment.GetEnvironmentVariable("ConnectionStrings__TaskManagementDbConnectionPostgres")
+                ?? "Host=localhost;Port=5432;Database=TaskManagementDb;Username=postgres;Password=postgres";
+
+            var optionsBuilder = new DbContextOptionsBuilder<TaskManagementDbContextPostgres>();
+            optionsBuilder.UseNpgsql(connectionString);
+
+            return new TaskManagementDbContextPostgres(optionsBuilder.Options);
+        }
+    }
+}