mws.backend.dotnet/mws.infrastructure/DependencyInjection.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Mws.Application.Auth;
using Mws.Application.Common;
using Mws.Application.Permissions;
using Mws.Infrastructure.Authentication;
using Mws.Infrastructure.Persistence;

namespace Mws.Infrastructure;

public static class DependencyInjection
{
    public static IServiceCollection AddInfrastructure(this IServiceCollection services, IConfiguration configuration)
    {
        var connectionString = configuration.GetConnectionString("Default")
            ?? "Host=localhost;Port=5432;Database=mws;Username=mws;Password=mws";

        services.AddDbContext<AppDbContext>(options => options.UseNpgsql(connectionString));
        services.AddScoped<IUnitOfWork, UnitOfWork>();

        services.AddAutoMapper(cfg => { }, typeof(MappingProfile).Assembly);
        services.AddMediatR(cfg => cfg.RegisterServicesFromAssembly(typeof(IUnitOfWork).Assembly));

        services.AddScoped<IPasswordHasher, BcryptPasswordHasher>();

        var jwtSection = configuration.GetSection("Jwt");
        var jwtOptions = jwtSection.Get<JwtOptions>() ?? new JwtOptions();
        if (string.IsNullOrWhiteSpace(jwtOptions.Secret) || jwtOptions.Secret.Length < 32)
        {
            jwtOptions.Secret = Environment.GetEnvironmentVariable("MWS_JWT_SECRET")
                ?? "mws-development-secret-key-change-me-in-production-123456";
        }
        services.Configure<JwtOptions>(jwtSection.Bind);
        services.AddSingleton(jwtOptions);
        services.AddScoped<ITokenService, JwtTokenService>();

        services.AddScoped<IPermissionService, PermissionService>();

        return services;
    }
}