using System.Threading.Tasks;

using System.Collections.Generic;

using System;

using System.Text.Json;

namespace Marrianne;

​

public class Personne

{

    public Personne(int id, string firstName, string lastName)

    {

        LastName = lastName;

        FirstName = firstName;

        Id = id;

    }

​

    public int Id { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

​

    public override string ToString()

   {

        return JsonSerializer.Serialize(this);

    }

​

}

​

public class TaskToRunAsync

{

    async Task Pause()

    {

        Random rand = new Random();

        var pause = rand.Next(1500, 3000);

        await Task.Delay(pause);

    }

​

    public async Task VerifPersonne(Personne info)

    {

        await Pause();

        Console.WriteLine($"tâche 'VerifPersonne' valeur du paramètre = {info}");

    }

​

    public async Task VerifAgrement(int info)

    {

        await Pause();

        Console.WriteLine($"tâche 'VerifAgrement' valeur du paramètre = {info}");

    }

​

    public async Task VerifTelephone(string info)

    {

        await Pause();

        Console.WriteLine($"tâche 'VerifTelephone' valeur du paramètre = {info}");

    }

​

    public async Task VerifUrl(string info)

    {

        await Pause();

        Console.WriteLine($"tâche 'VerifUrl' valeur du paramètre = {info}");

    }

​

    public async Task VerifMail(string info)

    {

        await Pause();

        Console.WriteLine($"tâche 'VerifMail' valeur du paramètre = {info}");

    }

​

}

​

class Program

{

    static async Task Main(string[] args)

    {

        var t = new TaskToRunAsync();

​

        var t1 = t.VerifAgrement(50);

        var t2 = t.VerifTelephone("Téléphone");

        var t3 = t.VerifUrl("URL");

        var t4 = t.VerifMail("Mail");

        var t5 = t.VerifPersonne(new Personne(10, "Jean", "Petit"));

​

        List<Task> listTask = new List<Task>() { t1, t2, t3, t4, t5 };

​

        await ExecuteInParallel(listTask);

    }

​

    private static async Task ExecuteInParallel(List<Task> listTask)

    {

        await Task.WhenAll(listTask).ContinueWith((alltasks) =>

        {

            if (alltasks.IsCompleted)

            {

                Console.WriteLine("\nAll tasks completed");

            }

        });

    }

}

​