using Omika.App.Local.Abstractions;
using Omika.App.Local.Models;
using Omika.App.Navigation;
using Omika.App.ViewModels;

namespace Omika.Tests.Mobile.Local;

/// <summary>
/// Tests du ViewModel Détail Équipe : liste des membres, actions rapides
/// téléphone / email via des fakes plateforme et remontée du résultat false
/// (aucune application de messagerie disponible) à l'utilisateur.
/// </summary>
public class EquipeDetailViewModelTests
{
    private sealed class FakePhoneLauncher : IPhoneLauncher
    {
        public Task<bool> DialAsync(string phoneNumber) => Task.FromResult(true);
    }

    private sealed class FakeEmailLauncher : IEmailLauncher
    {
        public int ComposeCalls { get; private set; }
        public string? LastEmail { get; private set; }
        public bool ComposeResult { get; set; } = true;

        public Task<bool> ComposeAsync(string email)
        {
            ComposeCalls++;
            LastEmail = email;
            return Task.FromResult(ComposeResult);
        }
    }

    private readonly FakePhoneLauncher _phoneLauncher = new();
    private readonly FakeEmailLauncher _emailLauncher = new();
    private readonly EquipeDetailViewModel _viewModel;

    public EquipeDetailViewModelTests()
    {
        _viewModel = new EquipeDetailViewModel(new NavigationService(), _phoneLauncher, _emailLauncher);
    }

    private static CollaborateurListItem Collaborateur(string? email = null)
        => new()
        {
            CollaborateurGuid = Guid.NewGuid(),
            DisplayName = "Jean Dupont",
            Email = email
        };

    [Fact]
    public async Task EmailCollaborateur_LauncherRetourneTrue_AucunMessage()
    {
        _emailLauncher.ComposeResult = true;

        await _viewModel.EmailCollaborateurCommand.ExecuteAsync(Collaborateur("jean@omika.fr"));

        Assert.Equal(1, _emailLauncher.ComposeCalls);
        Assert.Equal("jean@omika.fr", _emailLauncher.LastEmail);
        Assert.Null(_viewModel.ErrorMessage);
    }

    [Fact]
    public async Task EmailCollaborateur_LauncherRetourneFalse_MessageErreur()
    {
        _emailLauncher.ComposeResult = false;

        await _viewModel.EmailCollaborateurCommand.ExecuteAsync(Collaborateur("jean@omika.fr"));

        Assert.Equal(1, _emailLauncher.ComposeCalls);
        Assert.Equal("Aucune application de messagerie disponible.", _viewModel.ErrorMessage);
    }

    [Fact]
    public async Task EmailCollaborateur_SansEmail_NeLancePas()
    {
        await _viewModel.EmailCollaborateurCommand.ExecuteAsync(Collaborateur(null));

        Assert.Equal(0, _emailLauncher.ComposeCalls);
        Assert.Null(_viewModel.ErrorMessage);
    }
}