using System.IO;
using System.Windows;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Messaging;
using Livia.Models;
using Livia.Utility;
using Livia.Utility.DependencyInjection;
using Livia.ViewModels;
using Microsoft.Extensions.DependencyInjection;

namespace Astroke.ViewModels;

public class AStrokeControlViewModel : ObservableRecipient, ILiviaControlViewModel, IRecipient<DataLoadedMessage>, IRecipient<PerfusionDataGridChangeParameterMessage>
{
    public ImageRotationViewerControlViewModel ArterialTerritoriesImageRotationViewerControlViewModel { get; }
    public ImageRotationViewerControlViewModel AspectsImageRotationViewerControlViewModel { get; }

    public PerfusionDataGridGroupControlViewModel PerfusionDataGridGroupViewModel { get; }

    public AStrokeRoiSummaryControlViewModel LeftAStrokeRoiSummaryControlViewModel { get; }
    public AStrokeRoiSummaryControlViewModel RightAStrokeRoiSummaryControlViewModel { get; }
    public RoiSummaryControlViewModel LeftRestrictedDiffusionRoiSummaryControlViewModel { get; }
    public RoiSummaryControlViewModel RightRestrictedDiffusionRoiSummaryControlViewModel { get; }
    public RoiSummaryControlViewModel LeftAttRoiSummaryControlViewModel { get; }
    public RoiSummaryControlViewModel RightAttRoiSummaryControlViewModel { get; }
    public RoiSummaryControlViewModel LeftAcbvRoiSummaryControlViewModel { get; }
    public RoiSummaryControlViewModel RightAcbvRoiSummaryControlViewModel { get; }
    public AspectsScoreRoiSummaryControlViewModel LeftAnteriorAspectsScoreRoiSummaryControlViewModel { get; }
    public AspectsScoreRoiSummaryControlViewModel RightAnteriorAspectsScoreRoiSummaryControlViewModel { get; }
    public AspectsScoreRoiSummaryControlViewModel PosteriorAspectsScoreRoiSummaryControlViewModel { get; }
    public MosaicImageGroupControlViewModel MosaicImageGroupViewModel { get; }
    //TODO::temp fix I do not like this
    public bool AttTabVisible { get => _attTabVisible; set => SetProperty(ref _attTabVisible, value); }
    public IDataBlockLoader DataBlockLoader { get; }
    public int RoiTabSelectedIndex { get => _roiTabSelectedIndex; set => SetProperty(ref _roiTabSelectedIndex, value); }

    private int _roiTabSelectedIndex;
    private bool _attTabVisible = true;

    public AStrokeControlViewModel(IDataBlockLoader dataBlockLoader)
    {
        WeakReferenceMessenger.Default.RegisterAll(this);
        DataBlockLoader = dataBlockLoader;

        ArterialTerritoriesImageRotationViewerControlViewModel = ActivatorUtilities.CreateInstance<ImageRotationViewerControlViewModel>(ServiceProviderFactory.ServiceProvider);
        ArterialTerritoriesImageRotationViewerControlViewModel.DisplayName = (string)Application.Current.TryFindResource("ArterialTerritoriesRotationViewerName");
        ArterialTerritoriesImageRotationViewerControlViewModel.AtlasMaskLoadPath = @"atlas\AnImage_ArterialTerritories\mask";
        ArterialTerritoriesImageRotationViewerControlViewModel.StructLoadPath = "structure";
        ArterialTerritoriesImageRotationViewerControlViewModel.StructDataType = ImageRotationViewerDataType.Dicom2D;
        ArterialTerritoriesImageRotationViewerControlViewModel.AtlasId = "AnImage_ArterialTerritories";
        ArterialTerritoriesImageRotationViewerControlViewModel.ImageIndexSyncKey = "structure";
        dataBlockLoader.AddViewModel(ArterialTerritoriesImageRotationViewerControlViewModel);

        AspectsImageRotationViewerControlViewModel = ActivatorUtilities.CreateInstance<ImageRotationViewerControlViewModel>(ServiceProviderFactory.ServiceProvider);
        AspectsImageRotationViewerControlViewModel.DisplayName = (string)Application.Current.TryFindResource("AspectsRotationViewerName");
        AspectsImageRotationViewerControlViewModel.AtlasMaskLoadPath = @"atlas\AnImage_ASPECTS\mask";
        AspectsImageRotationViewerControlViewModel.StructLoadPath = "structure";
        AspectsImageRotationViewerControlViewModel.StructDataType = ImageRotationViewerDataType.Dicom2D;
        AspectsImageRotationViewerControlViewModel.AtlasId = "AnImage_ASPECTS";
        AspectsImageRotationViewerControlViewModel.ImageIndexSyncKey = "structure";
        dataBlockLoader.AddViewModel(AspectsImageRotationViewerControlViewModel);

        PerfusionDataGridControlViewModel cerebrumCerebellumPerfusionDataGridControlViewModel = ActivatorUtilities.CreateInstance<PerfusionDataGridControlViewModel>(ServiceProviderFactory.ServiceProvider);
        cerebrumCerebellumPerfusionDataGridControlViewModel.LoadPath = Path.Combine("atlas", "AnImage_CerebrumCerebellum");
        cerebrumCerebellumPerfusionDataGridControlViewModel.GridTabName = (string)Application.Current.TryFindResource("CerebrumCerebellumPerfusionDataGridName");

        PerfusionDataGridControlViewModel arterialTerritoriesPerfusionDataGridControlViewModel = ActivatorUtilities.CreateInstance<PerfusionDataGridControlViewModel>(ServiceProviderFactory.ServiceProvider);
        arterialTerritoriesPerfusionDataGridControlViewModel.LoadPath = Path.Combine("atlas", "AnImage_ArterialTerritories");
        arterialTerritoriesPerfusionDataGridControlViewModel.GridTabName = (string)Application.Current.TryFindResource("ArterialTerritoriesPerfusionDataGridName");

        PerfusionDataGridControlViewModel aspectsPerfusionDataGridControlViewModel = ActivatorUtilities.CreateInstance<PerfusionDataGridControlViewModel>(ServiceProviderFactory.ServiceProvider);
        aspectsPerfusionDataGridControlViewModel.LoadPath = Path.Combine("atlas", "AnImage_ASPECTS");
        aspectsPerfusionDataGridControlViewModel.GridTabName = (string)Application.Current.TryFindResource("AspectsPerfusionDataGridName");

        PerfusionDataGridGroupViewModel = ActivatorUtilities.CreateInstance<PerfusionDataGridGroupControlViewModel>(ServiceProviderFactory.ServiceProvider);
        PerfusionDataGridGroupViewModel.PerfusionDataGridViewModelCollection.Add(cerebrumCerebellumPerfusionDataGridControlViewModel);
        PerfusionDataGridGroupViewModel.PerfusionDataGridViewModelCollection.Add(arterialTerritoriesPerfusionDataGridControlViewModel);
        PerfusionDataGridGroupViewModel.PerfusionDataGridViewModelCollection.Add(aspectsPerfusionDataGridControlViewModel);
        dataBlockLoader.AddViewModel(PerfusionDataGridGroupViewModel);

        LeftAStrokeRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<AStrokeRoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        LeftAStrokeRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "cbf_location_l.json");
        LeftAStrokeRoiSummaryControlViewModel.RoiTabId = "cbf";
        dataBlockLoader.AddViewModel(LeftAStrokeRoiSummaryControlViewModel);

        RightAStrokeRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<AStrokeRoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        RightAStrokeRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "cbf_location_r.json");
        RightAStrokeRoiSummaryControlViewModel.RoiTabId = "cbf";
        dataBlockLoader.AddViewModel(RightAStrokeRoiSummaryControlViewModel);

        //This is useless but prevents ReSharper form complaining. This function may be needed in the future.
        RoiExpanderGroupControlViewModel.DefaultDeselectRoiSet.Add("");

        LeftRestrictedDiffusionRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<RoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        LeftRestrictedDiffusionRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "restricted_diffusion_location_l.json");
        LeftRestrictedDiffusionRoiSummaryControlViewModel.RoiTabId = "restricted_diffusion";
        dataBlockLoader.AddViewModel(LeftRestrictedDiffusionRoiSummaryControlViewModel);

        RightRestrictedDiffusionRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<RoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        RightRestrictedDiffusionRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "restricted_diffusion_location_r.json");
        RightRestrictedDiffusionRoiSummaryControlViewModel.RoiTabId = "restricted_diffusion";
        dataBlockLoader.AddViewModel(RightRestrictedDiffusionRoiSummaryControlViewModel);

        LeftAnteriorAspectsScoreRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<AspectsScoreRoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        LeftAnteriorAspectsScoreRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "anterior_aspects_l.json");
        LeftAnteriorAspectsScoreRoiSummaryControlViewModel.RoiTabId = "anterior";
        dataBlockLoader.AddViewModel(LeftAnteriorAspectsScoreRoiSummaryControlViewModel);

        RightAnteriorAspectsScoreRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<AspectsScoreRoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        RightAnteriorAspectsScoreRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "anterior_aspects_r.json");
        RightAnteriorAspectsScoreRoiSummaryControlViewModel.RoiTabId = "anterior";
        dataBlockLoader.AddViewModel(RightAnteriorAspectsScoreRoiSummaryControlViewModel);

        PosteriorAspectsScoreRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<AspectsScoreRoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        PosteriorAspectsScoreRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "posterior_aspects.json");
        PosteriorAspectsScoreRoiSummaryControlViewModel.IsTwoSided = true;
        PosteriorAspectsScoreRoiSummaryControlViewModel.RoiTabId = "posterior";
        dataBlockLoader.AddViewModel(PosteriorAspectsScoreRoiSummaryControlViewModel);

        LeftAttRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<RoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        LeftAttRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "att_location_l.json");
        LeftAttRoiSummaryControlViewModel.RoiTabId = "att";
        dataBlockLoader.AddViewModel(LeftAttRoiSummaryControlViewModel);

        RightAttRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<RoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        RightAttRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "att_location_r.json");
        RightAttRoiSummaryControlViewModel.RoiTabId = "att";
        dataBlockLoader.AddViewModel(RightAttRoiSummaryControlViewModel);

        LeftAcbvRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<RoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        LeftAcbvRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "acbv_location_l.json");
        LeftAcbvRoiSummaryControlViewModel.RoiTabId = "acbv";
        dataBlockLoader.AddViewModel(LeftAcbvRoiSummaryControlViewModel);

        RightAcbvRoiSummaryControlViewModel = ActivatorUtilities.CreateInstance<RoiSummaryControlViewModel>(ServiceProviderFactory.ServiceProvider);
        RightAcbvRoiSummaryControlViewModel.LoadPath = Path.Combine("roi", "acbv_location_r.json");
        RightAcbvRoiSummaryControlViewModel.RoiTabId = "acbv";
        dataBlockLoader.AddViewModel(RightAcbvRoiSummaryControlViewModel);

        MosaicImageGroupViewModel = ActivatorUtilities.CreateInstance<MosaicImageGroupControlViewModel>(ServiceProviderFactory.ServiceProvider);
        dataBlockLoader.AddDeferredLoadingModuleViewModel(MosaicImageGroupViewModel);

        dataBlockLoader.Init();

        RoiSummaryControlViewModel.RoiTabIdToTabIndexDictionary = new Dictionary<string, int>
        {
            { "cbf", 1 }, { "restricted_diffusion", 2 }, { "att", 3 }, { "acbv", 4 }, {"anterior", 5}, {"posterior", 6}
        };
    }

    public List<ReportModuleExpanderViewModel> GenerateReportModuleGroups()
    {
        List<ReportModuleItemViewModel> atlasItems =
        [
            new ReportModuleItemViewModel(
                (string)Application.Current.TryFindResource("ArterialTerritoriesRotationViewerName"),
                "AnImage_ArterialTerritories"),
            new ReportModuleItemViewModel((string)Application.Current.TryFindResource("AspectsRotationViewerName"),
                "AnImage_ASPECTS")
        ];

        //TODO::maybe cache it when loading data is better. No need to check colorMap
        List<ReportModuleItemViewModel> colorImageItems = (from viewModel in MosaicImageGroupViewModel.MosaicImageCollection where viewModel.UseColorBar select new ReportModuleItemViewModel(viewModel.DisplayName, viewModel.DisplayName)).ToList();


        List<ReportModuleExpanderViewModel> result =
        [
            new ReportModuleExpanderViewModel((string)Application.Current.TryFindResource("ReportModuleAtlas"),
                "regional_perfusion", atlasItems),
            new ReportModuleExpanderViewModel((string)Application.Current.TryFindResource("ReportModuleColorImage"),
                "param_color_img", colorImageItems),
            new ReportModuleExpanderViewModel("CBF", "cbf",
                LeftAStrokeRoiSummaryControlViewModel.GenerateReportModuleList()
                    .Concat(RightAStrokeRoiSummaryControlViewModel.GenerateReportModuleList())),
            new ReportModuleExpanderViewModel((string)Application.Current.TryFindResource("RoiTabHeader2"),
                "restricted_diffusion",
                LeftRestrictedDiffusionRoiSummaryControlViewModel.GenerateReportModuleList()
                    .Concat(RightRestrictedDiffusionRoiSummaryControlViewModel.GenerateReportModuleList())),
            new ReportModuleExpanderViewModel("ATT", "att",
                LeftAttRoiSummaryControlViewModel.GenerateReportModuleList()
                    .Concat(RightAttRoiSummaryControlViewModel.GenerateReportModuleList())),
            new ReportModuleExpanderViewModel("aCBV", "acbv",
                LeftAcbvRoiSummaryControlViewModel.GenerateReportModuleList()
                    .Concat(RightAcbvRoiSummaryControlViewModel.GenerateReportModuleList())),
            new ReportModuleExpanderViewModel((string)Application.Current.TryFindResource("RoiTabHeader5"),
                "anterior_aspects",
                LeftAnteriorAspectsScoreRoiSummaryControlViewModel.GenerateReportModuleList()
                    .Concat(RightAnteriorAspectsScoreRoiSummaryControlViewModel.GenerateReportModuleList())),
            new ReportModuleExpanderViewModel((string)Application.Current.TryFindResource("RoiTabHeader6"),
                "posterior_aspects", PosteriorAspectsScoreRoiSummaryControlViewModel.GenerateReportModuleList())
        ];
        return result;
    }

    public void Receive(DataLoadedMessage message)
    {
        RoiTabSelectedIndex = 1;
        WeakReferenceMessenger.Default.Send(new RoiTabChangedMessage(RoiTabSelectedIndex));
        AttTabVisible = LeftAttRoiSummaryControlViewModel.Visible || RightAttRoiSummaryControlViewModel.Visible;
    }

    public void Receive(PerfusionDataGridChangeParameterMessage message)
    {
        if (message.Value.Item2)
            RoiTabSelectedIndex = 0;
    }
}