ASP.Net-Core-MVC-Template/Template/TemplateWeb/Program.cs

using dotenv.net;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.EntityFrameworkCore;
using TemplateWeb.Data;
using TemplateWeb.Interfaces;
using TemplateWeb.Services;

namespace TemplateWeb;

public class Program
{
    public static void Main(string[] args)
    {
        DotEnv.Load();
        var builder = WebApplication.CreateBuilder(args);

        // gets the connection string from configuration
        var connectionString = builder.Configuration.GetConnectionString("DefaultConnection") 
                               ?? throw new InvalidOperationException("Connection string 'DefaultConnection' not found.");
        
        builder.Services.AddDbContext<AppDbContext>(options =>
            options.UseNpgsql(connectionString));

        builder.Services.AddControllersWithViews();

        builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
            .AddCookie(options =>
            {
                options.LoginPath = "/Auth/Login";
                options.AccessDeniedPath = "/Auth/AccessDenied";
                options.ExpireTimeSpan = TimeSpan.FromHours(2);
            });
        builder.Services.AddAuthorization();
        
        builder.Services.AddScoped<IAuthService, AuthService>();
        builder.Services.AddHttpContextAccessor();
        
        var app = builder.Build();

        // Apply migrations on startup
        using (var scope = app.Services.CreateScope())
        {
            var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
            if (db.Database.GetPendingMigrations().Any())
            {
                db.Database.Migrate();
            }
            
            // Seed the initial admin user
            DataSeeder.SeedAdminUser(db).GetAwaiter().GetResult();
        }

        // Configure the HTTP request pipeline.
        if (!app.Environment.IsDevelopment())
        {
            app.UseExceptionHandler("/Home/Error");
        }

        app.UseRouting();

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

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

        app.Run();
    }
}