Убрано лишнее создание

src/Console/Console.csproj

@@ -23,7 +23,6 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Npgsql" Version="10.0.3" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.2" />
   </ItemGroup>
 

src/Console/Program.cs

@@ -7,7 +7,6 @@ using ConsoleApp.Logging;
 using Domain.Entities;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
-using Npgsql;
 
 var configuration = new ConfigurationBuilder()
     .SetBasePath(AppContext.BaseDirectory)
@@ -28,7 +27,6 @@ try
 {
     log.WriteLine("Инициализация базы данных...");
     await using var db = CreateDbContext(connectionString);
-    await EnsureDatabaseAsync(connectionString);
     await db.Database.MigrateAsync();
     log.WriteLine("База данных готова.");
 
@@ -51,10 +49,6 @@ try
     }
 
     var order = ReadOrder(log, dishes);
-    if (order is null)
-    {
-        return;
-    }
 
     log.WriteLine(order.ToString());
     log.WriteLine("Отправка заказа на сервер...");
@@ -105,31 +99,6 @@ static AppDbContext CreateDbContext(string connectionString)
     return new AppDbContext(options);
 }
 
-static async Task EnsureDatabaseAsync(string connectionString)
-{
-    var builder = new NpgsqlConnectionStringBuilder(connectionString);
-    var databaseName = builder.Database
-        ?? throw new InvalidOperationException("Имя базы данных не указано в строке подключения.");
-
-    builder.Database = "postgres";
-
-    await using var connection = new NpgsqlConnection(builder.ConnectionString);
-    await connection.OpenAsync();
-
-    await using var checkCommand = connection.CreateCommand();
-    checkCommand.CommandText = "SELECT 1 FROM pg_database WHERE datname = @name";
-    checkCommand.Parameters.AddWithValue("name", databaseName);
-
-    if (await checkCommand.ExecuteScalarAsync() is not null)
-    {
-        return;
-    }
-
-    await using var createCommand = connection.CreateCommand();
-    createCommand.CommandText = $"CREATE DATABASE \"{databaseName.Replace("\"", "\"\"")}\"";
-    await createCommand.ExecuteNonQueryAsync();
-}
-
 static async Task SaveDishesAsync(AppDbContext db, IReadOnlyList<Dish> dishes)
 {
     await db.Dishes.ExecuteDeleteAsync();
@@ -146,7 +115,7 @@ static async Task SaveDishesAsync(AppDbContext db, IReadOnlyList<Dish> dishes)
     await db.SaveChangesAsync();
 }
 
-static Order? ReadOrder(ConsoleLog log, IReadOnlyList<Dish> dishes)
+static Order ReadOrder(ConsoleLog log, IReadOnlyList<Dish> dishes)
 {
     var dishesByArticle = dishes.ToDictionary(d => d.Article, StringComparer.OrdinalIgnoreCase);