Program.cs

using Auth0.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.Extensions.DependencyInjection;
using TaskManager.Data;
using TaskManager.Data.Repositories;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorPages();

// Temporarily disable Auth0 for development
// builder.Services.AddAuth0WebAppAuthentication(options =>
// {
//     options.Domain = builder.Configuration["Auth0:Domain"];
//     options.ClientId = builder.Configuration["Auth0:ClientId"];
// });

// Add cookie authentication instead
builder.Services.AddAuthentication("Cookies")
    .AddCookie("Cookies", options =>
    {
        options.LoginPath = "/Account/Login";
        options.LogoutPath = "/Account/Logout";
    });

builder.Services.AddScoped<ITaskRepository, InMemoryTaskRepository>();
builder.Services.AddScoped<ICategoryRepository, InMemoryCategoryRepository>();
builder.Services.AddScoped<IUserRepository, InMemoryUserRepository>();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

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

app.UseRouting();

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

app.MapRazorPages();

app.Run();

// Make the Program class accessible for testing
public partial class Program { }