Program.cs

using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using RoomReservationSystem.Data;
using RoomReservationSystem.Repositories;
using RoomReservationSystem.Services;
using RoomReservationSystem.Utilities;
using System.Text;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();

// Register DbConnectionFactory
builder.Services.AddSingleton<IDbConnectionFactory, DbConnectionFactory>();

// Register Repositories
builder.Services.AddScoped<IUserRepository, UserRepository>();
builder.Services.AddScoped<IRoleRepository, RoleRepository>();
builder.Services.AddScoped<IRoomRepository, RoomRepository>();
builder.Services.AddScoped<IBookingRepository, BookingRepository>();
builder.Services.AddScoped<IMessageRepository, MessageRepository>();
builder.Services.AddScoped<IFileRepository, FileRepository>();
builder.Services.AddScoped<IDatabaseObjectsRepository, DatabaseObjectsRepository>();
builder.Services.AddScoped<IBuildingRepository, BuildingRepository>(); // Added

// Register Services
builder.Services.AddScoped<IUserService, UserService>();
builder.Services.AddScoped<IBookingService, BookingService>();
builder.Services.AddScoped<IMessageService, MessageService>();
builder.Services.AddScoped<IFileService, FileService>();
builder.Services.AddScoped<IDatabaseObjectsService, DatabaseObjectsService>();
builder.Services.AddScoped<IBuildingService, BuildingService>(); // Added
// Add other services as needed
builder.Services.AddSingleton<JwtTokenGenerator>();

// Configure JWT Authentication
var jwtSettings = builder.Configuration.GetSection("Jwt");
var key = Encoding.UTF8.GetBytes(jwtSettings["Key"]);

builder.Services.AddAuthentication(options =>
{
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
})
.AddJwtBearer(options =>
{
    options.TokenValidationParameters = new TokenValidationParameters
    {
        ValidateIssuer = true,
        ValidIssuer = jwtSettings["Issuer"],
        ValidateAudience = true,
        ValidAudience = jwtSettings["Audience"],
        ValidateIssuerSigningKey = true,
        IssuerSigningKey = new SymmetricSecurityKey(key),
        ValidateLifetime = true
    };
});

// Add Authorization
builder.Services.AddAuthorization(options =>
{
    options.AddPolicy("Administrator", policy => policy.RequireRole("Administrator"));
    options.AddPolicy("RegisteredUser", policy => policy.RequireRole("Registered User"));
    options.AddPolicy("UnauthenticatedUser", policy => policy.RequireRole("Unauthenticated User"));
});

// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.

app.UseSwagger();
app.UseSwaggerUI();

app.UseHttpsRedirection();

app.UseAuthentication();
app.UseAuthorization();

app.MapControllers();

app.Run();