using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using AIStudio.Wpf.DiagramDesigner;
using AIStudio.Wpf.DiagramDesigner.Geometrys;
using AIStudio.Wpf.DiagramDesigner.Models;

namespace AIStudio.Wpf.Mind.ViewModels
{
    public class MindNode : DesignerItemViewModelBase
    {
        public MindNode(NodeLevel nodeLevel) : this(null, nodeLevel)
        {

        }

        public MindNode(IDiagramViewModel root, NodeLevel nodeLevel) : base(root)
        {
            NodeLevel = nodeLevel;
        }

        public MindNode(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
        {
        }

        public MindNode(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
        {
        }

        [Browsable(false)]
        public NodeLevel NodeLevel
        {
            get; set;
        }

        private double _cornerRadius = 3;
        public double CornerRadius
        {
            get
            {
                return _cornerRadius;
            }
            set
            {
                SetProperty(ref _cornerRadius, value);
            }
        }

        public double Spacing
        {
            get; set;
        } = 20;

        public List<MindNode> Children
        {
            get; set;
        } = new List<MindNode>();

        public SizeBase SizeWithSpacing
        {
            get
            {
                return this.Size.Add(Spacing * 2);
            }
        }

        public SizeBase DesiredSize
        {
            get;set;
        }

        public SizeBase MeasureOverride()
        {
            var sizewithSpacing = SizeWithSpacing;
            if (Children?.Count > 0)
            {
                var childrensizes = Children.Select(p => p.MeasureOverride()).ToArray();
                sizewithSpacing = new SizeBase(sizewithSpacing.Width + childrensizes.Max(p => p.Width), Math.Max(sizewithSpacing.Height, childrensizes.Sum(p => p.Height)));
            }
            DesiredSize = sizewithSpacing;
            return DesiredSize;
        }

        public void LayoutUpdated()
        {
            var size = MeasureOverride();
            ArrangeOverride(size);
        }

        public void ArrangeOverride(SizeBase sizeBase)
        {
            double left = MiddlePosition.X + ItemWidth / 2 + Spacing;
            double top = MiddlePosition.Y - sizeBase.Height / 2;
            if (Children?.Count > 0)
            {
                foreach (var child in Children)
                {
                    child.Left = left + Spacing;
                    child.Top = top + child.DesiredSize.Height / 2 - child.ItemHeight;
                    top += child.DesiredSize.Height;

                    child.ArrangeOverride(child.DesiredSize);
                }
            }
        }
    }

    public class MindLevel1Node : MindNode
    {
        public MindLevel1Node() : this(null)
        {

        }

        public MindLevel1Node(IDiagramViewModel root) : base(root, NodeLevel.Level1)
        {

        }

        public MindLevel1Node(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
        {

        }

        public MindLevel1Node(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
        {

        }
        protected override void Init(IDiagramViewModel root)
        {
            base.Init(root);

            ItemWidth = 80;
            ItemHeight = 40;
            this.ClearConnectors();
            var port = new FullyCreatedConnectorInfo(root, this, ConnectorOrientation.None, true) { XRatio = 0.5, YRatio = 0.5 };
            this.AddConnector(port);
            IsInnerConnector = true;
        }

        public RectangleBase Rectangle
        {
            get; set;
        }
   
    }

    public class MindLevel2Node : MindNode
    {
        public MindLevel2Node() : this(null)
        {

        }

        public MindLevel2Node(IDiagramViewModel root) : base(root, NodeLevel.Level2)
        {

        }

        public MindLevel2Node(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
        {

        }

        public MindLevel2Node(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
        {

        }

        protected override void Init(IDiagramViewModel root)
        {
            base.Init(root);

            ItemWidth = 80;
            ItemHeight = 40;
            this.ClearConnectors();
            var port1 = new FullyCreatedConnectorInfo(root, this, ConnectorOrientation.None, true) { XRatio = 0, YRatio = 0.5 };
            this.AddConnector(port1);
            var port2 = new FullyCreatedConnectorInfo(root, this, ConnectorOrientation.None, true) { XRatio = 1, YRatio = 0.5 };
            this.AddConnector(port2);
            IsInnerConnector = true;
        }

        public PointBase Offset
        {
            get; set;
        }
    }

    public class MindLevel3Node : MindNode
    {
        public MindLevel3Node() : this(null)
        {

        }

        public MindLevel3Node(IDiagramViewModel root) : base(root, NodeLevel.Level2)
        {

        }

        public MindLevel3Node(IDiagramViewModel root, SelectableItemBase designer) : base(root, designer)
        {

        }

        public MindLevel3Node(IDiagramViewModel root, SerializableItem serializableItem, string serializableType) : base(root, serializableItem, serializableType)
        {

        }
        protected override void Init(IDiagramViewModel root)
        {
            base.Init(root);

            ItemWidth = 80;
            ItemHeight = 40;
            this.ClearConnectors();
            var port1 = new FullyCreatedConnectorInfo(root, this, ConnectorOrientation.None, true) { XRatio = 0, YRatio = 1 };
            this.AddConnector(port1);
            var port2 = new FullyCreatedConnectorInfo(root, this, ConnectorOrientation.None, true) { XRatio = 1, YRatio = 1 };
            this.AddConnector(port2);
            IsInnerConnector = true;
        }
        public PointBase Offset
        {
            get; set;
        }
    }
}