using System.Collections.ObjectModel;
using System.Threading;
using System.Threading.Tasks;
using CommunityToolkit.Mvvm.Input;
using Microsoft.Extensions.Logging;
using SharepointToolbox.Core.Models;
using SharepointToolbox.Services;

namespace SharepointToolbox.ViewModels.Tabs;

/// <summary>
/// STUB: PermissionsViewModel — RED phase. Not yet implemented.
/// </summary>
public partial class PermissionsViewModel : FeatureViewModelBase
{
    private readonly IPermissionsService _permissionsService;
    private readonly ISiteListService _siteListService;
    private readonly ISessionManager _sessionManager;

    public ObservableCollection<SiteInfo> SelectedSites { get; } = new();
    public ObservableCollection<PermissionEntry> Results { get; private set; } = new();

    internal TenantProfile? _currentProfile;

    public PermissionsViewModel(
        IPermissionsService permissionsService,
        ISiteListService siteListService,
        ISessionManager sessionManager,
        ILogger<PermissionsViewModel> logger)
        : base(logger)
    {
        _permissionsService = permissionsService;
        _siteListService = siteListService;
        _sessionManager = sessionManager;
    }

    public void SetCurrentProfile(TenantProfile profile) => _currentProfile = profile;

    internal Task TestRunOperationAsync(CancellationToken ct, IProgress<OperationProgress> progress)
        => RunOperationAsync(ct, progress);

    protected override async Task RunOperationAsync(CancellationToken ct, IProgress<OperationProgress> progress)
    {
        // RED STUB: always throws to make tests fail at RED phase
        throw new NotImplementedException("PermissionsViewModel.RunOperationAsync not yet implemented.");
    }
}