using System.Collections;
using System.IO;
using System.Text;
using System.Windows;
using Autodesk.Revit.DB;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Nice3point.Revit.Toolkit.External.Handlers;
using ShrlAlgoToolkit.RevitAddins.Common.Assists;

namespace ShrlAlgoToolkit.RevitAddins.FamMaster;

public partial class FamilyProcessorViewModel : ObservableObject
{
    [ObservableProperty]
    public partial bool AddCategoryPrefix { get; set; }

    [ObservableProperty]
    public partial bool CreateCategoryFolder { get; set; }

    [ObservableProperty]
    public partial IList<ElementType> FamilyEditCollection { get; set; }

    //private readonly List<TreeModel> familyNodes = new();

    [ObservableProperty]
    public partial string FindStr { get; set; }

    private readonly ActionEventHandler handler;

    [ObservableProperty]
    public partial bool IsOverride { get; set; } = true;

    [ObservableProperty]
    public partial int ModifyNameIndex { get; set; }

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(SaveFamiliesCommand))]
    public partial string PathToSaveFamily { get; set; }

    [ObservableProperty]
    public partial string Prefix { get; set; }

    [ObservableProperty]
    public partial string ReplaceStr { get; set; }

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(TransmitFamilyCommand), nameof(SaveFamiliesCommand))]
    public partial Document SourceDoc { get; set; }

    [ObservableProperty]
    public partial string Suffix { get; set; }

    [ObservableProperty]
    [NotifyCanExecuteChangedFor(nameof(TransmitFamilyCommand))]
    public partial Document TargetDoc { get; set; }

    //private readonly ExternalEvent saveEvent;
    //private readonly SaveFamilyHandler handler;

    //便于类中各处进行调用，故在此处添加字段

    private readonly UIApplication uiapp;

    [ObservableProperty]
    public partial bool View3dAsDefault { get; set; }

    [ObservableProperty]
    public partial List<Family> FamilyCollection { get; set; } = new();

    [ObservableProperty]
    public List<Document> sourceDocsList;

    [ObservableProperty]
    public List<Document> targetDocsList;

    public FamilyProcessorViewModel(UIApplication uiapp)
    {
        this.uiapp = uiapp;
        handler = new ActionEventHandler();
        FamilyEditCollection = uiapp.ActiveUIDocument.Document
            .OfClasses(typeof(HostObjAttributes), typeof(FamilySymbol))
            .Cast<ElementType>()
            .ToList();
        SourceDocsList = AllDocuments;
        //FamilyEditCollection = uiApplication.ActiveUIDocument.Document.QueryElementTypeByType<ElementType>().Cast<ElementType>().ToList();
    }

    //private List<TreeModel> AddFamilyToTreeView()
    //{
    //    List<TreeModel> familiesTree = new();

    //    #region 族

    //    if (SourceDoc == null)
    //    {
    //        return null;
    //    }

    //    var categories = SourceDoc.Settings.Categories;

    //    var familyCollector = SourceDoc.OfClass<Family>().Cast<Family>().ToList();

    //    var familySymbolCollector = SourceDoc.OfClass<FamilySymbol>().Cast<FamilySymbol>().ToList();

    //    //ErrorModels<ElementId> dimensionTypeId = (from ElementToMove i in new FilteredElementCollector(sourceDoc).OfClass(typeof(DimensionType)) select i.ViewId).ToList();
    //    //var elementTypes = new FilteredElementCollector(sourceDoc).OfClass(typeof(ElementType));

    //    //ElementClassFilter familysymbolfilter = new ElementClassFilter(typeof(FamilySymbol));
    //    //ElementClassFilter hostsymbolFilter = new ElementClassFilter(typeof(HostObjAttributes));
    //    //LogicalOrFilter andfilter = new LogicalOrFilter(familysymbolfilter, hostsymbolFilter);
    //    //var familiesSymbolCollector = new FilteredElementCollector(sourceDoc).WherePasses(andfilter);
    //    foreach (Category category in categories)
    //    {
    //        TreeModel familyCategoryNode =
    //            new()
    //            {
    //                //familyCategory.ViewId = category.Name;
    //                Name = category.Name,
    //                IsExpanded = false
    //            };

    //        foreach (var family in familyCollector)
    //        {
    //            if (family.FamilyCategory.Name == category.Name)
    //            {
    //                TreeModel familyNode =
    //                    new()
    //                    {
    //                        //familyNode.ViewId = family.Name;
    //                        Name = family.Name,
    //                        IsExpanded = false,
    //                        Parent = familyCategoryNode
    //                    };
    //                familyCategoryNode.Children.Add(familyNode);

    //                //获取族及其族类型,作为加载对象合集
    //                familyNodes.Add(familyNode);
    //                foreach (var familySymbol in familySymbolCollector)
    //                {
    //                    if (familySymbol.FamilyName == family.Name)
    //                    {
    //                        TreeModel familySymbolNode =
    //                            new()
    //                            {
    //                                //familiesSymbolNode.ViewId = familySymbol.Name;
    //                                Name = familySymbol.Name,
    //                                Parent = familyNode
    //                            };
    //                        familyNode.Children.Add(familySymbolNode);
    //                    }
    //                }
    //            }
    //        }

    //        if (familyCategoryNode.Children.Count != 0)
    //        {
    //            FamilyNodesList.Add(familyCategoryNode);
    //        }
    //    }

    //    #endregion 族

    //    var hostObjectCollector = new FilteredElementCollector(SourceDoc)
    //        .OfClass(typeof(HostObjAttributes))
    //        .Cast<HostObjAttributes>()
    //        .ToList();
    //    //IList<string> categoryNames = (from HostObjAttributes ele in hostObjectCollector
    //    //                               select ele.Category.Name).ToList();

    //    //var elementTypes = new FilteredElementCollector(sourceDoc).OfClass(typeof(ElementType));
    //    //ErrorModels<string> ss1 = categoryNames.Distinct().ToList();
    //    foreach (var obj in hostObjectCollector)
    //    {
    //        var categoryName = obj.Category.Name;
    //        var familyName = obj.FamilyName;
    //        var familySymbolName = obj.Name;

    //        #region categoryRegion

    //        TreeModel familyCategoryNode = null;
    //        foreach (var t in familiesTree)
    //        {
    //            if (t.ToolTip.Equals(categoryName)) //遍历是否找到相同的节点
    //            {
    //                familyCategoryNode = t; //有则传递给当前类别节点
    //                break;
    //            }
    //        }

    //        if (familyCategoryNode == null)
    //        {
    //            TreeModel t = new() { Name = categoryName, IsExpanded = false };

    //            familyCategoryNode = t;
    //            familiesTree.Add(familyCategoryNode);
    //        }

    //        #endregion categoryRegion

    //        #region familyRegion

    //        TreeModel familyNode = null;
    //        foreach (var t in familyCategoryNode.Children)
    //        {
    //            if (t.ToolTip.Equals(categoryName + "-" + familyName))
    //            {
    //                familyNode = t;
    //                break;
    //            }
    //        }

    //        if (familyNode == null)
    //        {
    //            TreeModel t =
    //                new()
    //                {
    //                    Name = familyName,
    //                    IsExpanded = false,
    //                    Parent = familyCategoryNode
    //                };
    //            familyCategoryNode.Children.Add(t);

    //            familyNode = t;

    //            familyNodes.Add(familyNode);
    //        }

    //        #endregion familyRegion

    //        #region familySymbol

    //        TreeModel familySymbolNode = null;
    //        foreach (var t in familyNode.Children)
    //        {
    //            if (t.ToolTip.Equals(familyName + "-" + familySymbolName))
    //            {
    //                familySymbolNode = t;
    //                break;
    //            }
    //        }

    //        if (familySymbolNode == null)
    //        {
    //            TreeModel t =
    //                new()
    //                {
    //                    Name = familySymbolName,
    //                    IsExpanded = false,
    //                    Parent = familyNode
    //                };
    //            familyNode.Children.Add(t);
    //        }

    //        #endregion familySymbol

    //        //TreeModel familyNode = new TreeModel();
    //        //familyNode.Name = obj.FamilyName;
    //        ////familyNode.Name = obj.FamilyName;
    //        //familyNode.IsExpanded = false;
    //        //familyNode.Parent = categoryNode;
    //        //categoryNode.Children.Add(familyNode);

    //        //familyNodes.Add(familyNode);
    //        ////if (obj.Name == familyNode.Name)
    //        ////{
    //        //TreeModel familiesSymbolNode = new TreeModel();
    //        ////familiesSymbolNode.ViewId = familySymbol.Name;
    //        //familiesSymbolNode.Name = obj.Name;
    //        //familiesSymbolNode.Parent = familyNode;
    //        //familyNode.Children.Add(familiesSymbolNode);
    //        //}
    //    }

    //    familiesTree.Sort();

    //    return familiesTree;
    //    //FamilyTreeView.UpdateLayout();
    //}

    [RelayCommand]
    private static void Cancel(object obj)
    {
        if (obj is Window window)
        {
            window.DialogResult = false;
        }
    }

    /// <summary>
    ///     获取当前所有文档
    /// </summary>
    /// <returns></returns>
    private List<Document> ListOfOpenedDocument()
    {
        var documents = new List<Document>();
        foreach (Document document in uiapp.Application.Documents)
        {
            if (!document.IsLinked && !document.IsFamilyDocument)
            {
                documents.Add(document);
            }
        }

        return documents;
    }

    partial void OnSourceDocChanged(Document value)
    {
        FamilyCollection = SourceDoc.OfClass<Family>().OfType<Family>().Where(f => f.IsEditable).ToList();
        TargetDocsList = new(
            AllDocuments.Where(
                d =>
                    (d.PathName != null && SourceDoc?.PathName != null && d.PathName != SourceDoc.PathName)
                    || (SourceDoc != null && d.Title != SourceDoc.Title)
                    || SourceDoc == null
            )
        );
    }

    [RelayCommand(CanExecute = nameof(CanSaveFamilies))]
    private void SaveFamilies(object obj)
    {
        var items = (IList)obj;
        var collection = items.Cast<Family>();
        var selectedItems = collection.ToList();
        if (!selectedItems.Any())
        {
            return;
        }
        handler.Raise(_ =>
        {
            StringBuilder sb = new();
            if (!Directory.Exists(PathToSaveFamily))
            {
                var dr = MessageBox.Show("路径不存在,是否创建该路径", "提示", MessageBoxButton.OKCancel, MessageBoxImage.Information);
                if (dr == MessageBoxResult.OK)
                {
                    try
                    {
                        Directory.CreateDirectory(PathToSaveFamily);
                    }
                    catch (Exception ex)
                    {
                        ex.Message.ToLog();
                        MessageBox.Show("无法创建保存路径", "错误", MessageBoxButton.YesNo, MessageBoxImage.Error);
                    }
                }
            }
            else
            {
                //FileInfo fileInfo = new FileInfo(text3);
                foreach (var family in selectedItems)
                {
                    var familyFileInfo = family.Name;
                    //string categoryInfo = family.Category.Name;

                    var directory = PathToSaveFamily + "\\";
                    var categoryInfo = family.FamilyCategory.Name;

                    if (CreateCategoryFolder)
                    {
                        directory += $"{categoryInfo}\\";
                        DirectoryInfo directoryInfo = new(directory);
                        if (!directoryInfo.Exists)
                        {
                            directoryInfo.Create();
                        }
                    }

                    if (AddCategoryPrefix)
                    {
                        familyFileInfo = $"({categoryInfo}){familyFileInfo}";
                    }

                    var completeDir = directory + familyFileInfo + ".rfa";

                    try
                    {
                        FileInfo fileInfo = new(completeDir);
                        if (fileInfo.Exists)
                        {
                            if (IsOverride)
                            {
                                fileInfo.Delete();
                            }
                        }

                        if (family.IsEditable)
                        {
                            var editFamily = SourceDoc.EditFamily(family);
                            if (View3dAsDefault)
                            {
                                Set3DView(editFamily);
                            }

                            editFamily.SaveAs(completeDir);
                            editFamily.Close(false);
                        }
                        else
                        {
                            sb.AppendLine($"{categoryInfo}-{family.Name}");
                        }
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message, "错误", MessageBoxButton.OK, MessageBoxImage.Error);
                    }
                }
            }

            if (!string.IsNullOrEmpty($"{sb}"))
            {
                MessageBox.Show($"以下族无法导出：\n{sb}", "导出错误", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        });
        //saveEvent.Raise();
    }

    [RelayCommand]
    private void SelectDirectory()
    {
        Melskin.Controls.VistaFolderBrowserDialog dialog = new();
        //dialog.Description = "请选择文件路径";
        //dialog.SeletcedPath = @"C:\Users\ZGG\Documents";
        if (dialog.ShowDialog() == true)
        {
            var savePath = dialog.SelectedPath;
            PathToSaveFamily = savePath;
        }
    }

    private static void Set3DView(Document doc)
    {
        try
        {
            Transaction transaction = new(doc);
            transaction.Start();
            doc.GetDocumentPreviewSettings();
            SaveAsOptions saveAsOptions = new();
            if (doc.GetDocumentPreviewSettings().PreviewViewId.Equals(ElementId.InvalidElementId))
            {
                var startingViewSettings = StartingViewSettings.GetStartingViewSettings(doc);
                if (!startingViewSettings.ViewId.Equals(ElementId.InvalidElementId))
                {
                    saveAsOptions.PreviewViewId = startingViewSettings.ViewId;
                }
                else
                {
                    var viewCollector = new FilteredElementCollector(doc).OfClass(typeof(View));
                    var viewEnum = viewCollector
                        .Cast<View>()
                        .Where(view => view.ViewType == ViewType.ThreeD && !view.IsTemplate);
                    var flag = true;
                    foreach (View view in (IEnumerable)viewEnum)
                    {
                        if (view.IsTemplate)
                        {
                            continue;
                        }

                        saveAsOptions.PreviewViewId = view.Id;
                        flag = false;
                        break;
                    }

                    if (flag)
                    {
                        foreach (
                            View view in (IEnumerable)
                                viewCollector
                                    .Cast<View>()
                                    .Where(viewNot3D =>
                                    {
                                        return viewNot3D.ViewType
                                                is ViewType.FloorPlan
                                                    or ViewType.EngineeringPlan
                                                    or ViewType.Elevation
                                            || (viewNot3D.ViewType == ViewType.Section && !viewNot3D.IsTemplate);
                                    })
                        )
                        {
                            if (view.IsTemplate)
                            {
                                continue;
                            }

                            saveAsOptions.PreviewViewId = view.Id;
                            break;
                        }
                    }
                }
            }

            transaction.Commit();
        }
        catch
        {
            // ignored
        }
    }

    [RelayCommand(CanExecute = nameof(CanTransmitFamilies))]
    private void TransmitFamily(object obj)
    {
        var items = (IList)obj;
        var collection = items.Cast<Family>();
        var selectedItems = collection.ToList();
        if (!selectedItems.Any())
        {
            return;
        }
        handler.Raise(_ =>
        {
            TargetDoc.Invoke(_ =>
                {
                    CopyPasteOptions copyPasteOptions = new();
                    //copyPasteOptions.SetDuplicateTypeNamesHandler(copyPasteOptions.GetDuplicateTypeNamesHandler());
                    var ids = selectedItems.ConvertAll(f => f.Id);
                    ElementTransformUtils.CopyElements(SourceDoc, ids, TargetDoc, null, copyPasteOptions);
                },
                "传递族"
            );
        });
    }

    private List<Document> AllDocuments => ListOfOpenedDocument();

    private bool CanSaveFamilies => PathToSaveFamily != null && SourceDoc != null;

    private bool CanTransmitFamilies => SourceDoc != null && TargetDoc != null;

}

//public class CopyHandlerOk : IDuplicateTypeNamesHandler
//{
//    public DuplicateTypeAction OnDuplicateTypeNamesFound(DuplicateTypeNamesHandlerArgs args)
//    {
//        return DuplicateTypeAction.UseDestinationTypes;
//    }
//}

//public class CopyHandlerAbort : IDuplicateTypeNamesHandler
//{
//    public DuplicateTypeAction OnDuplicateTypeNamesFound(DuplicateTypeNamesHandlerArgs args)
//    {
//        return DuplicateTypeAction.Abort;
//    }
//}