using System.Reflection;
using GB5Shared.GOP.Qualifier;
using GB5Shared.DaprCache;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.EntityHandler;
using GB5Shared.EventLogPublish;
using GB5Shared.GB5Library.Qualifier;
using GB5Shared.Hosting;
using GB5Shared.ListQuery;
using GB5Shared.PubSub.OutBox;
using GoodBooks.PAY.PAYBLL.Factory;
using GoodBooks.PAY.PAYBLL.Vault;
using GoodBooks.PAY.PAYSL.Services;
using Microsoft.AspNetCore.ResponseCompression;
using Newtonsoft.Json;
using VaultSharp;
using VaultSharp.V1.AuthMethods.Token;

namespace PAYSL;

public class PAYModule : IModule
{
    public void Register(IServiceCollection services, IConfiguration configuration)
    {
        services.AddHttpContextAccessor();
        services.AddHttpClient();

        // LoginDTO resolved from the Login request header (empty fallback for background scopes)
        services.AddScoped<LoginDTO>(sp =>
        {
            var httpContext = sp.GetRequiredService<IHttpContextAccessor>().HttpContext;
            if (httpContext != null &&
                httpContext.Request.Headers.TryGetValue("Login", out var loginHeader))
                return JsonConvert.DeserializeObject<LoginDTO>(loginHeader!)!;
            return new LoginDTO();
        });

        services.AddScoped<EventLogPublish>();
        services.AddScoped<KeyInvalidate>();
        services.AddScoped(typeof(BaseEntityAppService<>), typeof(BaseEntityAppService<>));
        services.AddScoped<IQualifierFacade, QualifierFacade>();
        services.AddGB5QualifierEngine();
        services.AddScoped<IOutBox, OutBox>();

        // Vault — Singleton (thread-safe IVaultClient + in-memory secret cache)
        services.AddSingleton<IVaultClient>(sp =>
        {
            var authMethod = new TokenAuthMethodInfo(configuration["Vault:Token"]!);
            var settings   = new VaultClientSettings(configuration["Vault:Address"]!, authMethod);
            return new VaultClient(settings);
        });
        services.AddSingleton<IVaultService, VaultService>();

        // Payment gateway factory — Singleton (stateless)
        services.AddSingleton<IPaymentGatewayFactory, PaymentGatewayFactory>();

        // Gateway HTTP clients
        services.AddHttpClient("Razorpay", c =>
        {
            c.BaseAddress = new Uri("https://api.razorpay.com/v1/");
            c.Timeout     = TimeSpan.FromSeconds(30);
        });
        services.AddHttpClient("Stripe", c =>
        {
            c.BaseAddress = new Uri("https://api.stripe.com/v1/");
            c.Timeout     = TimeSpan.FromSeconds(30);
        });

        // Cross-module HTTP clients
        services.AddHttpClient("SalesModule", c =>
        {
            c.BaseAddress = new Uri(configuration["Integration:SalesModuleBaseUrl"]
                                    ?? throw new InvalidOperationException("Integration:SalesModuleBaseUrl not configured in appsettings.json"));
            c.Timeout = TimeSpan.FromSeconds(10);
        });
        services.AddHttpClient("FinanceModule", c =>
        {
            c.BaseAddress = new Uri(configuration["Integration:FinanceModuleBaseUrl"]
                                    ?? throw new InvalidOperationException("Integration:FinanceModuleBaseUrl not configured in appsettings.json"));
            c.Timeout = TimeSpan.FromSeconds(15);
        });

        services.AddResponseCompression(o =>
        {
            o.EnableForHttps = true;
            o.Providers.Add<GzipCompressionProvider>();
        });

        var payBllAssembly = Assembly.Load("PAYBLL");
        var payDalAssembly = Assembly.Load("PAYDAL");
        services.Scan(scan => scan
            .FromAssemblies(payBllAssembly, payDalAssembly)
            .AddClasses(c => c.Where(t =>
                !t.IsAbstract &&
                !t.IsInterface &&
                t.Namespace != null &&
                !t.Namespace.Contains(".DTO") &&
                !typeof(Exception).IsAssignableFrom(t) &&
                t.GetMethod("<Clone>$") == null))
            .AsImplementedInterfaces()
            .WithScopedLifetime());

        services.AddListInfrastructure(payDalAssembly);

        services.AddHostedService<CashbackPayoutJob>();
        services.AddHostedService<LoyaltyPointsExpiryJob>();
    }

    public void MapEndpoints(WebApplication app) { }
}