using AMREZ.EOP.Abstractions.Applications.Tenancy;
using AMREZ.EOP.Abstractions.Applications.UseCases.Authentications;
using AMREZ.EOP.Abstractions.Applications.UseCases.HumanResources;
using AMREZ.EOP.Abstractions.Applications.UseCases.Tenancy;
using AMREZ.EOP.Abstractions.Infrastructures.Common;
using AMREZ.EOP.Abstractions.Infrastructures.Repositories;
using AMREZ.EOP.Abstractions.Security;
using AMREZ.EOP.Abstractions.Storage;
using AMREZ.EOP.Application.UseCases.Authentications;
using AMREZ.EOP.Application.UseCases.HumanResources;
using AMREZ.EOP.Application.UseCases.Tenancy;
using AMREZ.EOP.Domain.Shared.Tenancy;
using AMREZ.EOP.Infrastructures.Data;
using AMREZ.EOP.Infrastructures.Options;
using AMREZ.EOP.Infrastructures.Repositories;
using AMREZ.EOP.Infrastructures.Security;
using AMREZ.EOP.Infrastructures.Storage;
using AMREZ.EOP.Infrastructures.Tenancy;
using AMREZ.EOP.Infrastructures.UnitOfWork;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
using StackExchange.Redis;

namespace AMREZ.EOP.Infrastructures.DependencyInjections;

public static class ServiceCollectionExtensions
{
    public static IServiceCollection AddInfrastructure(this IServiceCollection services)
    {
        services.AddHttpContextAccessor();

        // Options
        services.AddOptions<AuthOptions>()
            .BindConfiguration("Connections")
            .ValidateOnStart();

        // Tenancy core (order matters for AddDbContext factory resolution)
        services.AddSingleton(sp =>
        {
            var map  = new TenantMap();
            var opts = sp.GetRequiredService<IOptions<AuthOptions>>().Value;
            map.UpsertTenant("public", new TenantContext
            {
                Id = "public",
                Schema = "public",
                ConnectionString = string.IsNullOrWhiteSpace(opts.DefaultConnection) ? null : opts.DefaultConnection,
                Mode = TenantMode.Rls
            });
            return map;
        });
        services.AddHostedService<TenantMapLoader>();
        services.AddScoped<SearchPathInterceptor>();
        services.AddScoped<TenantRlsInterceptor>();
        services.AddScoped<ITenantResolver, DefaultTenantResolver>();
        services.AddScoped<ITenantDbContextFactory, TenantDbContextFactory>();
        services.AddScoped<ITenantProvisioner, TenantProvisioner>();

        // DbContext (attach RLS/search_path interceptors)
        services.AddDbContext<AppDbContext>((sp, o) =>
        {
            var cfg = sp.GetRequiredService<IOptions<AuthOptions>>().Value;
            o.UseNpgsql(cfg.DefaultConnection);
            o.AddInterceptors(
                sp.GetRequiredService<SearchPathInterceptor>(),
                sp.GetRequiredService<TenantRlsInterceptor>()
            );
        });

        // Db scope / UoW
        services.AddScoped<IDbScope, DbScope>();
        services.AddScoped<EFUnitOfWork>();
        services.AddScoped<IUnitOfWork, EFUnitOfWork>();

        // Security
        services.AddScoped<IPasswordHasher, BcryptPasswordHasher>();

        // Repositories — Auth & HR แยกกัน
        services.AddScoped<IUserRepository, UserRepository>();
        services.AddScoped<IUserProfileRepository, UserProfileRepository>();
        services.AddScoped<ITenantRepository, TenantRepository>();

        // UseCases — Authentication
        services.AddScoped<ILoginUseCase, LoginUseCase>();
        services.AddScoped<IRegisterUseCase, RegisterUseCase>();
        services.AddScoped<IChangePasswordUseCase, ChangePasswordUseCase>();
        services.AddScoped<IAddEmailIdentityUseCase, AddEmailIdentityUseCase>();
        services.AddScoped<IVerifyEmailUseCase, VerifyEmailUseCase>();
        services.AddScoped<IEnableTotpUseCase, EnableTotpUseCase>();
        services.AddScoped<IDisableMfaUseCase, DisableMfaUseCase>();
        services.AddScoped<ILogoutUseCase, LogoutUseCase>();
        services.AddScoped<ILogoutAllUseCase, LogoutAllUseCase>();

        // UseCases — HR
        services.AddScoped<IUpsertUserProfileUseCase, UpsertUserProfileUseCase>();
        services.AddScoped<IAddEmploymentUseCase, AddEmploymentUseCase>();
        services.AddScoped<IEndEmploymentUseCase, EndEmploymentUseCase>();
        services.AddScoped<IAddEmployeeAddressUseCase, AddEmployeeAddressUseCase>();
        services.AddScoped<ISetPrimaryAddressUseCase, SetPrimaryAddressUseCase>();
        services.AddScoped<IAddEmergencyContactUseCase, AddEmergencyContactUseCase>();
        services.AddScoped<ISetPrimaryEmergencyContactUseCase, SetPrimaryEmergencyContactUseCase>();
        services.AddScoped<IAddEmployeeBankAccountUseCase, AddEmployeeBankAccountUseCase>();
        services.AddScoped<ISetPrimaryBankAccountUseCase, SetPrimaryBankAccountUseCase>();

        // UseCases — Tenancy
        services.AddScoped<ICreateTenantUseCase, CreateTenantUseCase>();
        services.AddScoped<IUpdateTenantUseCase, UpdateTenantUseCase>();
        services.AddScoped<IDeleteTenantUseCase, DeleteTenantUseCase>();
        services.AddScoped<IMapDomainUseCase, MapDomainUseCase>();
        services.AddScoped<IUnmapDomainUseCase, UnmapDomainUseCase>();
        services.AddScoped<IAddBaseDomainUseCase, AddBaseDomainUseCase>();
        services.AddScoped<IRemoveBaseDomainUseCase, RemoveBaseDomainUseCase>();
        services.AddScoped<IListTenantsUseCase, ListTenantsUseCase>();
        services.AddScoped<IListDomainsUseCase, ListDomainsUseCase>();

        // Redis (optional)
        services.AddSingleton<IConnectionMultiplexer?>(sp =>
        {
            var opts = sp.GetRequiredService<IOptions<AuthOptions>>().Value;
            var conn = opts.RedisConnection;
            if (string.IsNullOrWhiteSpace(conn)) return null;

            try
            {
                var cfg = ConfigurationOptions.Parse(conn, true);
                cfg.AbortOnConnectFail = false;
                cfg.ConnectTimeout = 1000;
                cfg.SyncTimeout = 1000;
                var mux = ConnectionMultiplexer.Connect(cfg);
                return mux.IsConnected ? mux : null;
            }
            catch { return null; }
        });

        return services;
    }
}