using System.Security.Claims;
using Distribution.Data;
using Distribution.Features.Auth;
using Distribution.Features.Brand;
using Distribution.Features.Category;
using Distribution.Features.DeliveryRide;
using Distribution.Features.Payment;
using Distribution.Features.DriverComplianceConfig;
using Distribution.Features.DriverProfile;
using Distribution.Features.Grn;
using Distribution.Features.Item;
using Distribution.Features.Order;
using Distribution.Features.PriceList;
using Distribution.Features.Po;
using Distribution.Features.PurchaseReturn;
using Distribution.Features.Returns;
using Distribution.Features.Claims;
using Distribution.Features.SupplierClaims;
using Distribution.Features.Region;
using Distribution.Features.LoadingEvent;
using Distribution.Features.Ride;
using Distribution.Features.Role;
using Distribution.Features.Route;
using Distribution.Features.Sale;
using Distribution.Features.Scheme;
using Distribution.Features.Store;
using Distribution.Features.Store.Kyc;
using Distribution.Features.Supplier;
using Distribution.Features.Sync;
using Distribution.Features.Uom;
using Distribution.Features.User;
using Distribution.Features.Vehicle;
using Distribution.Features.Stock;
using Distribution.Features.Warehouse;
using Distribution.Infra.Authorization;
using Distribution.Infra.UoW;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Authorization;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;

var builder = WebApplication.CreateBuilder(args);

var connectionString = builder.Configuration.GetConnectionString("DefaultConnection")
    ?? throw new InvalidOperationException("Connection string 'DefaultConnection' was not found.");

builder.Services.AddDbContext<AppDBContext>(options =>
    options.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString)));

builder.Services.AddScoped<IUnitOfWork, EFUnitOfWork>();

builder.Services.AddScoped<IRegionRepository, RegionRepository>();
builder.Services.AddScoped<IRouteRepository, RouteRepository>();
builder.Services.AddScoped<IVehicleRepository, VehicleRepository>();
builder.Services.AddScoped<IStoreRepository, StoreRepository>();
builder.Services.AddScoped<IWarehouseRepository, WarehouseRepository>();
builder.Services.AddScoped<IOrderRepository, OrderRepository>();
builder.Services.AddScoped<ISaleRepository, SaleRepository>();
builder.Services.AddScoped<IUserRepository, UserRepository>();
builder.Services.AddScoped<IRoleRepository, RoleRepository>();
builder.Services.AddScoped<ICategoryRepository, CategoryRepository>();
builder.Services.AddScoped<ISubCategoryRepository, SubCategoryRepository>();
builder.Services.AddScoped<IBrandRepository, BrandRepository>();
builder.Services.AddScoped<IUomRepository, UomRepository>();
builder.Services.AddScoped<IItemRepository, ItemRepository>();
builder.Services.AddScoped<IStockRepository, StockRepository>();
builder.Services.AddScoped<IDriverProfileRepository, DriverProfileRepository>();
builder.Services.AddScoped<IDriverComplianceConfigRepository, DriverComplianceConfigRepository>();
builder.Services.AddScoped<IRideRepository, RideRepository>();
builder.Services.AddScoped<IRideCancelRequestRepository, RideCancelRequestRepository>();
builder.Services.AddScoped<ILoadingSheetRepository, LoadingSheetRepository>();
builder.Services.AddScoped<IStoreKycDocumentRepository, StoreKycDocumentRepository>();
builder.Services.AddScoped<IPriceListRepository, PriceListRepository>();
builder.Services.AddScoped<ISupplierRepository, SupplierRepository>();
builder.Services.AddScoped<ISchemeRepository, SchemeRepository>();
builder.Services.AddScoped<IPoRepository, PoRepository>();
builder.Services.AddScoped<IGrnRepository, GrnRepository>();
builder.Services.AddScoped<IPurchaseReturnRepository, PurchaseReturnRepository>();
builder.Services.AddScoped<IReturnRepository, ReturnRepository>();
builder.Services.AddScoped<IClaimRepository, ClaimRepository>();
builder.Services.AddScoped<ISupplierClaimRepository, SupplierClaimRepository>();
builder.Services.AddScoped<IDeliveryTaskRepository, DeliveryTaskRepository>();
builder.Services.AddScoped<IPaymentRepository, PaymentRepository>();

builder.Services.AddScoped<RegionService>();
builder.Services.AddScoped<RouteService>();
builder.Services.AddScoped<VehicleService>();
builder.Services.AddScoped<StoreService>();
builder.Services.AddScoped<WarehouseService>();
builder.Services.AddScoped<OrderService>();
builder.Services.AddScoped<SaleService>();
builder.Services.AddScoped<UserService>();
builder.Services.AddScoped<RoleService>();
builder.Services.AddScoped<AuthService>();
builder.Services.AddScoped<CategoryService>();
builder.Services.AddScoped<BrandService>();
builder.Services.AddScoped<UomService>();
builder.Services.AddScoped<ItemService>();
builder.Services.AddScoped<SyncService>();
builder.Services.AddScoped<StockService>();
builder.Services.AddScoped<StoreKycDocumentService>();
builder.Services.AddScoped<PriceListService>();
builder.Services.AddScoped<SupplierService>();
builder.Services.AddScoped<DriverProfileService>();
builder.Services.AddScoped<DriverComplianceConfigService>();
builder.Services.AddScoped<RideService>();
builder.Services.AddScoped<LoadingSheetService>();
builder.Services.AddScoped<SchemeService>();
builder.Services.AddScoped<PoService>();
builder.Services.AddScoped<GrnService>();
builder.Services.AddScoped<PurchaseReturnService>();
builder.Services.AddScoped<ReturnService>();
builder.Services.AddScoped<ClaimService>();
builder.Services.AddScoped<SupplierClaimService>();
builder.Services.AddScoped<DeliveryTaskService>();
builder.Services.AddScoped<PaymentService>();

builder.Services.AddHttpContextAccessor();
builder.Services.AddScoped<ICurrentUserService, CurrentUserService>();
builder.Services.AddHttpClient<IAuthHexClient, AuthHexClient>(client =>
{
    var baseUrl = builder.Configuration["AuthHex:BaseUrl"] ?? throw new InvalidOperationException("AuthHex:BaseUrl is not configured.");
    client.BaseAddress = new Uri(baseUrl);
});
builder.Services.AddScoped<IPermissionRepository, PermissionRepository>();
builder.Services.AddScoped<IScopeRepository, ScopeRepository>();
builder.Services.AddScoped<IPermissionService, PermissionService>();
builder.Services.AddScoped<IScopeAccessService, ScopeAccessService>();
builder.Services.AddScoped<IAuthorizationHandler, PermissionAuthorizationHandler>();
builder.Services.AddSingleton<IAuthorizationPolicyProvider, PermissionPolicyProvider>();

var jwtSection = builder.Configuration.GetSection("Jwt");
var jwtPublicKeyXml = jwtSection["PublicKey"] ?? throw new InvalidOperationException("Jwt:PublicKey is not configured.");
var jwtSigningKey = new RsaSecurityKey(RsaXmlKeyReader.ReadPublicKey(jwtPublicKeyXml));

builder.Services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidIssuer = jwtSection["Issuer"],
            ValidateAudience = true,
            ValidAudience = jwtSection["Audience"],
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = jwtSigningKey,
            ValidateLifetime = true,
            ClockSkew = TimeSpan.FromMinutes(1)
        };

        // AuthHex issues the token and owns its claim shape; this app's authorization (permission
        // policies, role-level checks) runs against the *local* Role/Permission tables, so every
        // validated token is mapped back to a local User/Role once here, not duplicated per
        // endpoint. A token for a user with no matching local User record is rejected outright —
        // login via AuthHex does not implicitly provision a local user.
        options.Events = new JwtBearerEvents
        {
            OnTokenValidated = async context =>
            {
                var subClaim = context.Principal?.FindFirst("sub")?.Value
                    ?? context.Principal?.FindFirst(ClaimTypes.NameIdentifier)?.Value;

                if (!Guid.TryParse(subClaim, out var userId))
                {
                    context.Fail("Token is missing a valid user id claim.");
                    return;
                }

                var userRepo = context.HttpContext.RequestServices.GetRequiredService<IUserRepository>();
                var user = await userRepo.GetByIdAsync(userId);
                if (user is null || !user.IsActive)
                {
                    context.Fail("User not found or inactive.");
                    return;
                }

                var identity = (ClaimsIdentity)context.Principal!.Identity!;
                identity.AddClaim(new Claim("username", user.Username));
                identity.AddClaim(new Claim("role_id", user.FK_RoleId.ToString()));
                identity.AddClaim(new Claim("role_level", (user.Role?.Level ?? 0).ToString()));
            }
        };
    });

builder.Services.AddAuthorization();

builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddOpenApi();
builder.Services.AddSwaggerGen();

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.MapOpenApi();
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();
app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();

app.Run();