Program.cs

using LibraryCodingNight.Data;
using LibraryCodingNight.Models;
using MailTest.Services;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.UI.Services;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using System;
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using System.Security.Claims;
using Org.BouncyCastle.Asn1.Ocsp;
using Microsoft.Extensions.Hosting;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
builder.Services.AddDbContext<ApplicationDbContext>(options =>
    options.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString)));
builder.Services.AddDatabaseDeveloperPageExceptionFilter();

builder.Services.AddDefaultIdentity<ApplicationUser>(options => options.SignIn.RequireConfirmedAccount = true).AddRoles<IdentityRole>()
    .AddEntityFrameworkStores<ApplicationDbContext>();
builder.Services.AddAuthorization(options =>
{
    options.AddPolicy("RequireAdminRole",
         policy => policy.RequireRole("Admin"));
    options.AddPolicy("RequireStudentRole",
         policy => policy.RequireRole("Student"));

});
builder.Services.AddControllersWithViews();
builder.Services.AddSingleton<IEmailSender, EmailSender>();


var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseMigrationsEndPoint();
}
else
{
    app.UseExceptionHandler("/Home/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.MapControllerRoute(
    name: "default",
    pattern: "{controller=Home}/{action=Index}/{id?}");
app.MapRazorPages();

app.Run();
public enum Roles
{
    SuperAdmin,
    Admin,
    Moderator,
    Basic
}
public static class ContextSeed
{

    public async static Task Main(string[] args)
    {
       
    }
}