Program.cs

using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using TheBigThree.Data;
using TheBigThree.Data.Models;
using TheBigThree.Services;
using TheBigThree.Services.Core.Interfaces;
using TheBigThree.Services.Core.Repositories;
using TheBigThree.Services.Repositories;
using TheBigThree.Services.Seeding;

namespace TheBigThree
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            var builder = WebApplication.CreateBuilder(args);

            var connectionString = builder.Configuration.GetConnectionString("MyPersonalConnection")
                                   ?? builder.Configuration.GetConnectionString("DefaultConnection");

            builder.Services.AddDbContext<TheBigThreeDbContext>(options =>
                options.UseSqlServer(connectionString));

            builder.Services.AddDatabaseDeveloperPageExceptionFilter();

            builder.Services.AddDefaultIdentity<ApplicationUser>(options =>
            {
                options.SignIn.RequireConfirmedAccount = false;
                options.Lockout.DefaultLockoutTimeSpan = TimeSpan.FromMinutes(5);
                options.Lockout.MaxFailedAccessAttempts = 3;
                options.Lockout.AllowedForNewUsers = true;
            })
            .AddRoles<IdentityRole>()
            .AddEntityFrameworkStores<TheBigThreeDbContext>();

            builder.Services.ConfigureApplicationCookie(options =>
            {
                options.Cookie.SameSite = SameSiteMode.Strict;
                options.Cookie.HttpOnly = true;
                options.Cookie.SecurePolicy = CookieSecurePolicy.Always;
            });

            builder.Services.Configure<RouteOptions>(options =>
            {
                options.LowercaseUrls = true;
            });

            builder.Services.AddControllersWithViews(options =>
            {
                options.Filters.Add<AutoValidateAntiforgeryTokenAttribute>();
            });

            builder.Services.AddScoped<ICollectionService, CollectionService>();
            builder.Services.AddScoped<ICommentService, CommentService>();
            builder.Services.AddScoped<ILikeService, LikeService>();
            builder.Services.AddScoped<IProfileService, ProfileService>();
            builder.Services.AddScoped<IAdminService, AdminService>();

            builder.Services.AddScoped(typeof(IRepository<>), typeof(Repository<>));

            var app = builder.Build();

            if (app.Environment.IsDevelopment())
            {
                app.UseMigrationsEndPoint();
            }
            else
            {
                app.UseHsts();
            }

            app.UseExceptionHandler("/Home/Error");
            app.UseStatusCodePagesWithReExecute("/Home/Error/{0}");

            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

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

            app.MapControllerRoute(
                name: "areas",
                pattern: "{area:exists}/{controller=Home}/{action=Index}/{id?}");

            app.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");

            app.MapRazorPages();

            using (IServiceScope scope = app.Services.CreateScope())
            {
                IServiceProvider services = scope.ServiceProvider;

                await RoleSeeder.SeedRolesAndAdminAsync(services);
            }

            app.Run();
        }
    }
}