DependencyInjection

The DependencyInjection class is a static class that provides an extension method to register infrastructure services with the dependency injection container.

Key Components

• AddInfrastracture Method:
  • Registers services like IDateTimeProvider, IEmailService, and repositories (IBookingRepository, IUserRepository, IApartmentRepository).
  • Configures ApplicationDbContext with a connection string from the configuration.
  • Adds a singleton for ISqlConnectionFactory.
  • Configures Dapper to use a custom type handler for DateOnly.

public static class DependencyInjection
{
    public static IServiceCollection AddInfrastracture(this IServiceCollection services, IConfiguration configuration)
    {
        services.AddTransient<IDateTimeProvider, DateTimeProvider>();

        services.AddTransient<IEmailService, EmailService>();

        var connectionString = configuration.GetConnectionString("Database") ??
            throw new ArgumentNullException(nameof(configuration));

        services.AddDbContext<ApplicationDbContext>(options =>
        {
            options.UseNpgsql(connectionString).UseSnakeCaseNamingConvention(); // Use SnakeCaseNamingConventions
        });

        services.AddScoped<IBookingRepository, BookingRepository>();
        services.AddScoped<IUserRepository, UserRepository>();
        services.AddScoped<IApartmentRepository, ApartmentRepository>();

        services.AddScoped<IUnitOfWork>(sp => sp.GetRequiredService<ApplicationDbContext>());

        services.AddSingleton<ISqlConnectionFactory>(_ => new SqlConnectionFactory(connectionString));

        SqlMapper.AddTypeHandler(new DateOnlyTypeHandler());

        return services;
    }
}