using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows.Forms;
using System.Xml.Serialization;
using Deltares.DSoilModel.Data;
using Deltares.DSoilModel.Forms.Properties;
using Deltares.Geometry;
using Deltares.Geometry.Forms;
using Deltares.Geotechnics;
using Deltares.Geotechnics.ConePenetrationTest;
using Deltares.Geotechnics.Forms;
using Deltares.Geotechnics.GeotechnicalGeometry;
using Deltares.Standard;
using Deltares.Standard.EventPublisher;
using Deltares.Standard.Extensions;
using Deltares.Standard.Forms;
using Deltares.Standard.Forms.DExpress;
using Deltares.Standard.Language;
using Deltares.Standard.Reflection;

namespace Deltares.DSoilModel.Forms
{
    /// <summary>
    /// Class to be able to show a soilsegment as length profile (based on a fictive 2D profile with the length of the segment)
    /// In the length profile, the mapped CPTs and Borings belonging to the segment are shown.
    /// </summary>
    public class DSoilModelSegmentGeometryEditor : IVisibleEnabled, IDisposable
    {
        private readonly List<BoringLookup2D> boringLookup2Ds = new List<BoringLookup2D>();
        private readonly List<ConePenetrationTestLookup2D> cptLookup2Ds = new List<ConePenetrationTestLookup2D>();
        private readonly GeometryEditor geometryEditor;
        private readonly Panel panel = new Panel();
        private readonly SpatialEditor spatialEditor;
        private DSoilModelProject project;
        private SoilProfile2D selectedProfile2D;
        private SoilSegment selectedSegment;
        private SoilSegmentSplitLocation splitLocation;

        /// <summary>
        /// Initializes a new instance of the <see cref="DSoilModelSegmentGeometryEditor" /> class.
        /// </summary>
        /// <param name="geometryEditor">The main form to be able to set the caption of the geometry dock panel.</param>
        public DSoilModelSegmentGeometryEditor(GeometryEditor geometryEditor)
        {
            this.geometryEditor = geometryEditor;
            geometryEditor.SurpressSpatialSelection = true;
            spatialEditor = geometryEditor.SpatialEditor;
            spatialEditor.RegisterShapeType(typeof(GeometryData), typeof(DrawingGeometry), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(GeometryPoint), typeof(DrawingPoint), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(GeometryCurve), typeof(DrawingLine), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(GeometryPointString), typeof(DrawingPointString), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(LocalizedGeometryPointString), typeof(DrawingLocalisedGeometryPointString), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(ConePenetrationTestLookup2D), typeof(DrawingCPT), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(BoringLookup2D), typeof(DrawingBoring), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(BoringLayer), typeof(DrawingBoringLayer), null, null, null, false);
            spatialEditor.RegisterShapeType(typeof(SoilSegmentSplitLocation), typeof(DrawingSoilSegmentSplitLocation));
            spatialEditor.MarginBottom = 55;

            foreach (ShapeInfo shapeInfo in spatialEditor.ShapeInfos)
            {
                shapeInfo.AllowSelect = shapeInfo.AllowEdit;
            }

            spatialEditor.ShapeRemoved += spatialEditor_ShapeRemoved;
            DataEventPublisher.OnSelectionChanged += DataEventPublisherOnSelectionChanged;
            DataEventPublisher.OnAfterChange += DataEventPublisherOnOnAfterChange;
            DataEventPublisher.OnDataListModified += DataEventPublisherOnOnDataListModified;
            AddUiItems();
        }

        /// <summary>
        /// Gets the spatial editor.
        /// </summary>
        /// <value>
        /// The spatial editor.
        /// </value>
        public SpatialEditor SpatialEditor
        {
            get
            {
                return spatialEditor;
            }
        }

        /// <summary>
        /// Gets or sets the project.
        /// </summary>
        public DSoilModelProject Project
        {
            get
            {
                return project;
            }
            set
            {
                if (value != project)
                {
                    spatialEditor.Clear();
                }
                project = value;
            }
        }

        /// <summary>
        /// Gets or sets the onselectionchanged callback.
        /// </summary>
        /// <value>
        /// The is visible callback.
        /// </value>
        [XmlIgnore]
        [Browsable(false)]
        public Func<ConePenetrationTestData, bool> AddCPTCallback { get; set; }

        /// <summary>
        /// Gets or sets the is visible callback.
        /// </summary>
        /// <value>
        /// The is visible callback.
        /// </value>
        [XmlIgnore]
        [Browsable(false)]
        public Func<string, bool> IsVisibleCallback { get; set; }

        /// <summary>
        /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
        /// </summary>
        public void Dispose()
        {
            spatialEditor.ShapeRemoved -= spatialEditor_ShapeRemoved;
            DataEventPublisher.OnAfterChange -= DataEventPublisherOnOnAfterChange;
            DataEventPublisher.OnSelectionChanged -= DataEventPublisherOnSelectionChanged;
            DataEventPublisher.OnDataListModified -= DataEventPublisherOnOnDataListModified;
        }

        /// <summary>
        /// Determines whether the specified property is visible.
        /// </summary>
        /// <param name="property">The property.</param>
        /// <returns></returns>
        public bool IsVisible(string property)
        {
            return true;
        }

        /// <summary>
        /// Determines whether the specified property is enabled.
        /// </summary>
        /// <param name="property">The property.</param>
        /// <returns></returns>
        public bool IsEnabled(string property)
        {
            switch (property)
            {
                case "SplitSegment":
                    return splitLocation != null;
                case "SplitSegmentLocation": 
                    return splitLocation == null && selectedSegment != null;
            }
            return true;
        }

        /// <summary>
        /// Property for binding of Split segment toolbar button.
        /// So even when it seems not used, it is used!
        /// </summary>
        /// <value>
        /// <c>true</c> if [split segment location]; otherwise, <c>false</c>.
        /// </value>
        private bool SplitSegmentLocation
        {
            get
            {
                return false;
            }
            set
            {
                AddSoilSegmentSplitLocation();
            }
        }

        private void AddSoilSegmentSplitLocation(SoilSegmentSplitLocation splitter = null)
        {
            if (spatialEditor.EmptySelection != null && spatialEditor.EmptySelection.DataObject is SoilProfile2D)
            {
                DataEventPublisher.InvokeWithoutPublishingEvents(() =>
                {
                    var soilProfile2D = spatialEditor.EmptySelection.DataObject as SoilProfile2D;
                    if (splitter == null)
                    {
                        splitLocation = new SoilSegmentSplitLocation
                        {
                            SoilSegment = selectedSegment,
                            SoilProfile2D = soilProfile2D,
                            XCoordinate = (soilProfile2D.Geometry.Right - soilProfile2D.Geometry.Left) * 0.5
                        };
                    }
                    else
                    {
                        splitLocation = splitter;
                        splitLocation.SoilProfile2D = soilProfile2D;
                    }
                    if (splitLocation.SoilSegment != selectedSegment)
                    {
                        ShowSoilSegment(splitLocation.SoilSegment, false);
                    }
                });
                UndoRedoManager.Instance.BeginAction();
                spatialEditor.AddObject(splitLocation);
                spatialEditor.Refresh();
                DataEventPublisher.AfterChange(this);

                // event to trigger the map editor
                DataEventPublisher.SelectionChanged(splitLocation);                
            }
        }

        private void DataEventPublisherOnOnAfterChange(object sender, PublishEventArgs publishEventArgs)
        {
            if (selectedSegment != null && selectedProfile2D != null)
            {
                if (sender is ConePenetrationTestPerSegment || sender is BoringPerSegment)
                {
                    ShowSoilSegment(selectedSegment, true);
                }
            }
            var segment = sender as SoilSegment;
            if (segment != null)
            {
                
                ShowSoilSegment(segment, selectedProfile2D != null);
            }
            if (ReferenceEquals(sender, spatialEditor) && publishEventArgs.Property == spatialEditor.GetMemberName(x => x.InsertType))
            {
                DataEventPublisher.AfterChange(this);
            }
        }

        private void DataEventPublisherOnSelectionChanged(object sender, PublishEventArgs e)
        {
            selectedProfile2D = null;
            
            if (sender is SoilSegment)
            {
                var segment = (SoilSegment) sender;
                if (segment != selectedSegment)
                {
                    ShowSoilSegment(sender, false);
                }
            }
            else if (sender is SoilSegmentSplitLocation)
            {
                // split going on in map window ?
                if (sender != splitLocation)
                {
                    if (splitLocation != null)
                    {
                        spatialEditor.RemoveObject(splitLocation);
                    }
                    var splitter = sender as SoilSegmentSplitLocation;
                    if (splitter.SoilSegment != selectedSegment)
                    {
                        ShowSoilSegment(splitter.SoilSegment, false);
                    }
                    AddSoilSegmentSplitLocation(splitter);
                } 
            }
        }

        private void DataEventPublisherOnOnDataListModified(object sender, PublishEventArgs publishEventArgs)
        {
            if (selectedSegment != null && selectedProfile2D != null)
            {
                if (sender is List<ConePenetrationTestPerSegment> || sender is List<BoringPerSegment>)
                {
                    ShowSoilSegment(selectedSegment, true);
                }
            }
            else if (sender is List<SoilSegmentSplitLocation>)
            {
                // end split segment operation ?
                if (splitLocation != null)
                {
                    var dataListModifiedArgs = publishEventArgs as DataListModifiedArgs;
                    if (dataListModifiedArgs != null && dataListModifiedArgs.Action == ListModifyAction.Delete)
                    {
                        spatialEditor.RemoveObject(splitLocation);
                        splitLocation = null;
                        DataEventPublisher.AfterChange(this);
                    }
                }
            }
        }

        private void ShowSoilSegment(object sender, bool forceUpdate)
        {
            var segment = (SoilSegment)sender;
            if (segment.StochasticSoilModel != null
                && segment.StochasticSoilModel.StochasticSoilProfiles != null
                && segment.StochasticSoilModel.StochasticSoilProfiles.Count > 0)
            {
                ShowSoilProfile2D(sender, forceUpdate);
            }

            geometryEditor.Title = string.Format(LocalizationManager.GetTranslatedText(this, "ShowSegmentLengthProfile"), segment.Name);
            selectedSegment = segment;
            splitLocation = null;
            DataEventPublisher.AfterChange(this);
        }

        private void ShowSoilProfile2D(object sender, bool forceUpdate)
        {
            var segment = (SoilSegment) sender;

            DataEventPublisher.InvokeWithoutPublishingEvents(() =>
            {
                if (selectedProfile2D == null)
                {
                    var soilProfile2D = new SoilProfile2D
                    {
                        Geometry = CreateGeometryForSegment(segment),
                        Name = segment.Name
                    };
                    selectedProfile2D = soilProfile2D; 
                    selectedProfile2D.Name = "";
                }
                if (spatialEditor.EmptySelection == null
                    || spatialEditor.EmptySelection.DataObject == null
                    || !(spatialEditor.EmptySelection.DataObject is SoilProfile2D)
                    || (spatialEditor.EmptySelection.DataObject as SoilProfile2D).Name != selectedProfile2D.Name || forceUpdate)
                    //|| (spatialEditor.EmptySelection.DataObject as SoilProfile2D).Name != selectedSegment.Name)
                {
                    selectedProfile2D.Name = segment.Name;
                    Clear();
                    geometryEditor.InsertShapeMethod = selectedProfile2D.Geometry.CreateGeometryObject;
                    AddSoilProfile2D(selectedProfile2D);
                    var bottomCptsBorings = AddCptAndBoringLookUpsFromSegment(segment, selectedProfile2D);
                    selectedProfile2D.Geometry.Bottom = Math.Min(selectedProfile2D.Geometry.Bottom, bottomCptsBorings - 5);
                    spatialEditor.EmptySelection = new EmptyShape(selectedProfile2D);
                    spatialEditor.Refresh();
                    spatialEditor.ZoomToExtents(false);
                }
            });
        }

        private GeometryData CreateGeometryForSegment(SoilSegment segment)
        {
            var geometry = new GeometryData();
            var point1 = new GeometryPoint(0, 0, 0);
            var point2 = new GeometryPoint(segment.GetSegmentLength(), 0, 0);
            geometry.Left = point1.X;
            geometry.Right = point2.X;
            geometry.Bottom = GeometryConstants.DefaultBottomLimitGeometry;
            var curve1 = new GeometryCurve(point1, point2);
            geometry.Points.AddRange(new[]
                {
                    point1, point2
                });
            geometry.Curves.Add(curve1);            
            geometry.Name = segment.Name;
            return geometry;
        }

        private void AddSoilProfile2D(SoilProfile2D soilProfile)
        {
            spatialEditor.AddObject(soilProfile);
            spatialEditor.AddObject(soilProfile.Geometry);
            spatialEditor.AddList(soilProfile.Surfaces);
            spatialEditor.AddList(soilProfile.Geometry.Curves);
            spatialEditor.AddList((IList) soilProfile.Geometry.Points);
            if (splitLocation != null)
            {
                spatialEditor.AddObject(splitLocation);
            }
            selectedProfile2D = soilProfile;
        }

        private double AddCptAndBoringLookUpsFromSegment(SoilSegment segment, SoilProfile2D soilProfile2D)
        {
            var bottom = double.MaxValue;
            DataEventPublisher.InvokeWithoutPublishingEvents(() =>
            {
                cptLookup2Ds.Clear();
                segment.SetXlocalForCpts();
                foreach (var cptPerSegment in segment.Cpts)
                {
                    if (cptPerSegment.ConePenetrationTestData != null)
                    {
                        var cptLookup = new ConePenetrationTestLookup2D
                        {
                            ConePenetrationTestData = cptPerSegment.ConePenetrationTestData, Xlocal = cptPerSegment.Xlocal, SoilProfile2D = soilProfile2D
                        };
                        cptLookup2Ds.Add(cptLookup);
                        bottom = Math.Min(bottom, cptLookup.ConePenetrationTestData.Bottom);
                    }
                }
                spatialEditor.AddList(cptLookup2Ds);

                boringLookup2Ds.Clear();
                segment.SetXlocalForBorings();
                foreach (var boringPerSegment in segment.Borings)
                {
                    if (boringPerSegment.Boring != null)
                    {
                        var boringLookup = new BoringLookup2D
                        {
                            Boring = boringPerSegment.Boring, Xlocal = boringPerSegment.Xlocal, SoilProfile2D = soilProfile2D
                        };
                        boringLookup2Ds.Add(boringLookup);
                        bottom = Math.Min(bottom, boringLookup.Boring.Bottom);
                    }
                }
                spatialEditor.AddList(boringLookup2Ds);
            });
            return bottom;
        }

        private void Clear()
        {
            geometryEditor.Clear();
            cptLookup2Ds.Clear();
            boringLookup2Ds.Clear();
            splitLocation = null;
        }

        private void AddUiItems()
        {
            // Add button to be able to insert a segment split location
            var splitButton = geometryEditor.CreateButton(Resources.SplitSegment);
            splitButton.Caption =  LocalizationManager.GetTranslatedText(this, "SplitSegmentLocation");
            BindSupport.Bind(panel, splitButton, typeof(DSoilModelSegmentGeometryEditor), "SplitSegmentLocation");
            
            // Add popup context menu for performing the actual split action
            var splitSegmentMenuItem = new ToolStripMenuItem("Split Segment");
            spatialEditor.ContextMenuStrip.Items.Add(splitSegmentMenuItem);
            BindSupport.Bind<DSoilModelSegmentGeometryEditor>(panel, splitSegmentMenuItem, ge => ge.SplitSegment());
            BindSupport.Assign(panel, this);
        }

        private void SplitSegment()
        {
            if (selectedSegment != null && splitLocation != null)
            {             
                project.SplitSoilSegment(selectedSegment, splitLocation.XCoordinate);
                splitLocation = null;
                UndoRedoManager.Instance.EndAction();
            }
        }

        private void spatialEditor_ShapeRemoved(object sender, ShapeEventArgs e)
        {
            object dataObject = e.Shape.DataObject;
            if (dataObject is SoilSegmentSplitLocation)
            {
                splitLocation = null;
                
                // mimic the communication from the map editor to indicate that the splitter was deleted
                DataEventPublisher.DataListModified(new List<SoilSegmentSplitLocation>(), ListModifyAction.Delete);
                
                DataEventPublisher.AfterChange(this);
            }            
        }
    }
}