PIAPS_CW/RestAPI/Program.cs

using BusinessLogic.BusinessLogic;
using BusinessLogic.Tools;
using BusinessLogic.Tools.Mail;
using Contracts.BusinessLogicContracts;
using Contracts.StorageContracts;
using DatabaseImplement.Implements;
using Microsoft.OpenApi.Models;
using System;
using System.Net.Mail;

const string VERSION = "v1";
const string TITLE = "21GunsRestAPI";

var builder = WebApplication.CreateBuilder(args);

builder.Logging.SetMinimumLevel(LogLevel.Trace);
builder.Logging.AddLog4Net("log4net.config");

#region DI

builder.Services.AddTransient<IRoleLogic, RoleLogic>();
builder.Services.AddTransient<IUserLogic, UserLogic>();
builder.Services.AddSingleton<ITwoFactorAuthService, TwoFactorAuthService>();

builder.Services.AddTransient<IRoleStorage, RoleStorage>();
builder.Services.AddTransient<IUserStorage, UserStorage>();

builder.Services.AddSingleton<JwtProvider>();
builder.Services.AddSingleton<MailSender>();

#endregion DI

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc(VERSION, new OpenApiInfo { Title = TITLE, Version = VERSION });
});

var app = builder.Build();
var jwtProvider = app.Services.GetService<JwtProvider>();
var mailSender = app.Services.GetService<MailSender>();

#region Setup config

string? getSection(string section) => builder.Configuration?.GetSection(section)?.Value?.ToString();
jwtProvider?.SetupJwtOptions(new()
{
    SecretKey = getSection("JwtOptions:SecretKey") ?? string.Empty,
    ExpiresHours = Convert.ToInt16(getSection("JwtOptions:ExpiresHours"))
});
mailSender?.SetupMailOptions(new()
{
    Email = getSection("MailOptions:Email") ?? string.Empty,
    Password = getSection("MailOptions:Password") ?? string.Empty,
    SmtpClientHost = getSection("MailOptions:SmtpClientHost") ?? string.Empty,
    SmtpClientPort = Convert.ToInt16(getSection("MailOptions:SmtpClientPort"))
});

#endregion Setup config

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(c => c.SwaggerEndpoint($"/swagger/{VERSION}/swagger.json", $"{TITLE} {VERSION}"));
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();