using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Events;
using Autodesk.Revit.UI;

namespace ShrlAlgoToolkit.Revit.Assists;

public class FunctionByGuidLine
{
    public static Line GetGuideLine(Document doc, List<ElementId> eleIdsAdded)
    {
        var referLineId = eleIdsAdded.FirstOrDefault();
        var guideLine = doc.GetElement(referLineId) as FamilyInstance;
        var line = (guideLine?.Location as LocationCurve)?.Curve as Line;
        doc.Delete(referLineId);

        return line;
    }

    #region 绘制线操作

    private static readonly bool PlaceSingleInstanceAbort = true;

    //只有一条线
    private readonly List<ElementId> eleIdsRefer = new();
    private IntPtr revitWindow;

    public bool PlaceElementsByLine(UIApplication uiapp)
    {
        var uidoc = uiapp.ActiveUIDocument;
        var app = uiapp.Application;
        var doc = uidoc.Document;
#if REVIT2018
		revitWindow = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle;
#else
        revitWindow = uiapp.MainWindowHandle;
#endif

        var f = new FilteredElementCollector(doc).OfClass(typeof(Family)).Cast<Family>().FirstOrDefault(x => x.Name == "LocationCurve");

        var symbol = doc.GetElement(f.GetFamilySymbolIds().FirstOrDefault()) as FamilySymbol;
        eleIdsRefer.Clear();
        using var tg = new TransactionGroup(doc, "创建");
        tg.Start();
        try
        {
            //var x = UiDocument.GetPlacementTypes(symbol, doc.ActiveView);

            //存在不能切换布置在平面上还是工作平面上的问题（如果族不需要切换，则没问题)
            app.DocumentChanged += App_DocumentChanged;
            uidoc.PromptForFamilyInstancePlacement(symbol);
            app.DocumentChanged -= App_DocumentChanged;
            //UiDocument.PostRequestForElementTypePlacement(symbol);
        }
        catch (OperationCanceledException)
        {
            var n = eleIdsRefer.Count;
            //XYZ place = UiDocument.Selection.PickPoint("请点击布置的一侧");
            if (n > 0)
            {
                using var ts = new Transaction(doc, "删除");
                ts.Start();
                var eid = eleIdsRefer.FirstOrDefault();
                var l = uidoc.ActiveView.GenLevel;
                if (doc.GetElement(eid) is FamilyInstance fi)
                {
                    Wall.Create(doc, (fi.Location as LocationCurve)?.Curve, l.Id, false);
                }

                doc.Delete(eid);
                //Debug.Print(ex.ViewMessage);
                ts.Commit();
            }
        }

        tg.Assimilate();

        return true;
    }

    private void App_DocumentChanged(object sender, DocumentChangedEventArgs e)
    {
        var idsAdded = e.GetAddedElementIds();
        var n = idsAdded.Count;
        eleIdsRefer.AddRange(idsAdded);
        if (PlaceSingleInstanceAbort && 0 < n)
        {
            //KeyIntPtrHelper.OneKey(_revit_window, (char)System.Windows.Forms.Keys.Escape);
            KeyIntPtrHelper.OneKey(revitWindow, '\u001b');

            //System.Windows.Forms.SendKeys.SendWait("^{F4}");
            //KeyIntPtrHelper.SendKeys(Autodesk.Windows.ComponentManager.ApplicationWindow, System.Windows.Forms.Keys.Escape);
        }
    }

    #endregion
}