using Amazon.Runtime;
using Amazon.S3;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using mws.backend.dotnet.application.Auth;
using mws.backend.dotnet.application.Common;
using mws.backend.dotnet.application.Documents;
using mws.backend.dotnet.application.Permissions;
using mws.backend.dotnet.infrastructure.Authentication;
using mws.backend.dotnet.infrastructure.Persistence;
using mws.backend.dotnet.infrastructure.Storage;

namespace mws.backend.dotnet.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>();

        services.Configure<MinioOptions>(configuration.GetSection("Minio"));
        services.AddSingleton<IAmazonS3>(sp =>
        {
            var options = sp.GetRequiredService<IOptions<MinioOptions>>().Value;
            return new AmazonS3Client(
                new BasicAWSCredentials(options.AccessKey, options.SecretKey),
                new AmazonS3Config
                {
                    ServiceURL = options.Endpoint,
                    ForcePathStyle = true,
                    UseHttp = options.Endpoint.StartsWith("http://", StringComparison.OrdinalIgnoreCase),
                    RequestChecksumCalculation = RequestChecksumCalculation.WHEN_REQUIRED,
                    ResponseChecksumValidation = ResponseChecksumValidation.WHEN_REQUIRED,
                });
        });
        services.AddScoped<IDocumentContentStore, S3DocumentContentStore>();

        return services;
    }
}