using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;

using System.Text;
using System.Windows.Forms;
using CommonAI.Zone.ZoneEditor.Plugin.EditorToScene;
using CommonAI.Zone.ZoneEditor.Plugin.SceneToEditor;
using CommonAI.Zone;
using CommonAI.Zone.ZoneEditor;
using CommonAI.RTS;
using CommonLang.Vector;
using System.Collections;
using CommonAI.Zone.Instance;
using CommonLang;
using GameEditorPlugin.Win32;
using CommonFroms.Drawing;
using CommonAI.RTS.Manhattan;
using GameEditorPlugin.Tools;
using CommonAI.Zone.Helper;

namespace GameEditorPlugin.Win32.Editor
{
    public abstract class EditorObject : DisplayObject
    {
        readonly private SceneObjectData Data;

        readonly public EditorWorld world;
        readonly public Pen pen;
        readonly public Pen pen_hight;
        readonly public SolidBrush brush;

        public bool Selected = false;

        public abstract bool Pickable { get; }
        public abstract float Direction { get; set; }
        public abstract bool IsDirectionality { get; }

        public EditorObject(EditorWorld wd, SceneObjectData data)
        {
            this.world = wd;
            this.Data = data;
            this.pen = new Pen(Color.FromArgb(data.Color));
            this.pen_hight = new Pen(Color.White);
            this.brush = new SolidBrush(Color.FromArgb(data.Color));
        }

        public virtual bool touch(float x, float y)
        {
            return CMath.includeRectPoint2(
                          this.X + this.LocalBounds.X,
                          this.Y + this.LocalBounds.Y,
                          this.LocalBounds.Width,
                          this.LocalBounds.Height,
                          x, y);
        }

        public string Name { get { return Data.Name; } set { Data.Name = value; } }
        public override float X { get { return Data.X; } }
        public override float Y { get { return Data.Y; } }
        public override float Z { get { return 0; } }

        public void SetPos(float x, float y)
        {
            this.Data.X = x;
            this.Data.Y = y;
        }
        public override void render_begin(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen.Width = pen_hight.Width = penscale;
        }
        public override void render_end(Graphics g)
        {
            base.render_end(g);
            if (Selected) this.render_selected(g);
        }
        protected virtual void render_selected(Graphics g)
        {
            g.DrawEllipse(pen_hight, LocalBounds);
            if (IsDirectionality)
            {
                float r = Math.Max(LocalBounds.Width, LocalBounds.Height) * 1.25f * 0.5f;
                g.DrawLine(pen_hight, 0, 0,
                   (float)Math.Cos(Direction) * r,
                   (float)Math.Sin(Direction) * r);
            }
        }
        public virtual void render_in_terrain(Graphics g) { }
    }


    public class EditorUnit : EditorObject
    {
        readonly public UnitData Data;
        readonly public UnitInfo Info;
        private RectangleF mLocalBounds;

        private static Pen pen_hitbody = new Pen(Color.Green);
        private static Pen pen_guardrange = new Pen(Color.Yellow);

        public override RectangleF LocalBounds { get { return mLocalBounds; } }

        public override bool Pickable { get { return EditorDisplayPanel.ShowUnit; } }
        public override bool Visible { get { return EditorDisplayPanel.ShowAll || Pickable; } }
        public override float Direction { get { return Data.Direction; } set { this.Data.Direction = value; } }
        public override bool IsDirectionality { get { return true; } }


        public EditorUnit(EditorWorld wd, MsgPutUnit unit)
            : base(wd, unit.Data)
        {
            this.Data = unit.Data;
            this.Info = unit.UnitData;
            if (Info != null)
            {
                this.mLocalBounds = new RectangleF(
                        -Info.BodySize,
                        -Info.BodySize,
                       Info.BodySize * 2,
                       Info.BodySize * 2);
            }
            else
            {
                this.mLocalBounds = new RectangleF(-1, -1, 2, 2);
            }
        }
        public override bool touch(float x, float y)
        {
            if (Info != null)
            {
                return CMath.includeRoundPoint(this.X, this.Y, this.Info.BodySize, x, y);
            }
            return base.touch(x, y);
        }
        public override void render(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen.Width = pen_hight.Width = pen_hitbody.Width = pen_guardrange.Width = penscale;

            g.DrawEllipse(pen, mLocalBounds);

            if (Selected)
            {
                g.FillEllipse(brush, mLocalBounds);
                if(Info != null)
                {
                    g.DrawArc(pen_hitbody, -Info.BodyHitSize, -Info.BodyHitSize, Info.BodyHitSize * 2, Info.BodyHitSize * 2, 0, 360);
                    g.DrawArc(pen_guardrange, -Info.GuardRange, -Info.GuardRange, Info.GuardRange * 2, Info.GuardRange * 2, 0, 360);
                }
                
                g.DrawLine(pen_hight, 0, 0,
                   (float)Math.Cos(Data.Direction) * mLocalBounds.Width,
                   (float)Math.Sin(Data.Direction) * mLocalBounds.Width);
            }
            else
            {
                g.DrawLine(pen, 0, 0,
                   (float)Math.Cos(Data.Direction) * mLocalBounds.Width,
                   (float)Math.Sin(Data.Direction) * mLocalBounds.Width);
            }
        }

    }

    public class EditorItem : EditorObject
    {
        readonly public ItemData Data;
        readonly public ItemTemplate Info;
        private RectangleF mLocalBounds;

        public override RectangleF LocalBounds { get { return mLocalBounds; } }

        public override bool Pickable { get { return EditorDisplayPanel.ShowItem; } }
        public override bool Visible { get { return EditorDisplayPanel.ShowAll || Pickable; } }
        public override float Direction { get { return Data.Direction; } set { this.Data.Direction = value; } }
        public override bool IsDirectionality { get { return true; } }

        public EditorItem(EditorWorld wd, MsgPutItem item)
            : base(wd, item.Data)
        {
            this.Data = item.Data;
            this.Info = item.Item;
            if (Info != null)
            {
                this.mLocalBounds = new RectangleF(
                        -Info.BodySize,
                        -Info.BodySize,
                       Info.BodySize * 2,
                       Info.BodySize * 2);
            }
            else
            {
                this.mLocalBounds = new RectangleF(-1, -1, 2, 2);
            }
        }

        public override bool touch(float x, float y)
        {
            if (Info != null)
            {
                return CMath.includeRoundPoint(this.X, this.Y, this.Info.BodySize, x, y);
            }
            return base.touch(x, y);
        }
        public override void render(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen.Width = pen_hight.Width = penscale;

            g.DrawEllipse(pen, mLocalBounds);

            if (Selected)
            {
                g.FillEllipse(brush, mLocalBounds);
                g.DrawLine(pen_hight, 0, 0,
                   (float)Math.Cos(Data.Direction) * mLocalBounds.Width,
                   (float)Math.Sin(Data.Direction) * mLocalBounds.Width);
            }
            else
            {
                g.DrawLine(pen, 0, 0,
                   (float)Math.Cos(Data.Direction) * mLocalBounds.Width,
                   (float)Math.Sin(Data.Direction) * mLocalBounds.Width);
            }


        }
    }

    public class EditorRegion : EditorObject
    {
        readonly public RegionData Data;

        public override bool Pickable { get { return EditorDisplayPanel.ShowRegion; } }
        public override bool Visible { get { return EditorDisplayPanel.ShowAll || Pickable; } }
        public override float Direction { get { return 0; } set { } }
        public override bool IsDirectionality { get { return false; } }
        public override RectangleF LocalBounds
        {
            get
            {
                if (Data.RegionType == RegionData.Shape.RECTANGLE)
                {
                    return new RectangleF(-Data.W / 2, -Data.H / 2, Data.W, Data.H);
                }
                else if (Data.RegionType == RegionData.Shape.ROUND)
                {
                    return new RectangleF(-Data.W / 2, -Data.W / 2, Data.W, Data.W);
                }
                else
                {
                    return new RectangleF(-Data.W / 2, -Data.W / 2, Data.W, Data.W);
                }
            }
        }

        public EditorRegion(EditorWorld wd, MsgPutRegion data)
            : base(wd, data.Data)
        {
            this.Data = data.Data;
        }

        public override bool touch(float x, float y)
        {
            if (Data.RegionType == RegionData.Shape.RECTANGLE)
            {
                return base.touch(x, y);
            }
            else if(Data.RegionType == RegionData.Shape.ROUND)
            {
                return CMath.includeRoundPoint(X, Y, Data.W / 2, x, y);
            }
            else if (Data.RegionType == RegionData.Shape.STRIP)
            {
                float line_r = Data.W / 2;
                Vector2 p = new Vector2(X, Y);
                Vector2 q = new Vector2(X, Y);
                MathVector.movePolar(p, Data.StripDirection, -Data.H / 2);
                MathVector.movePolar(q, Data.StripDirection, +Data.H / 2);
                return CMath.includeStripWidthPoint(p.X, p.Y, q.X, q.Y, line_r, x, y);
            }

            return base.touch(x, y);
        }

        public override void render(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen.Width = pen_hight.Width = penscale;

            if (Data.RegionType == RegionData.Shape.RECTANGLE)
            {
                g.DrawRectangle(pen, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
                if (Selected)
                {
                    g.FillRectangle(brush, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
                }
            }
            else if (Data.RegionType == RegionData.Shape.ROUND)
            {
                g.DrawEllipse(pen, -Data.W / 2, -Data.W / 2, Data.W, Data.W);
                if (Selected)
                {
                    g.FillEllipse(brush, -Data.W / 2, -Data.W / 2, Data.W, Data.W);
                }
            }
            else if (Data.RegionType == RegionData.Shape.STRIP)
            {
                float line_r = Data.W / 2;
                Line2 line = new Line2(0, 0, 0, 0);
                MathVector.movePolar(line.p, Data.StripDirection, -Data.H / 2);
                MathVector.movePolar(line.q, Data.StripDirection, +Data.H / 2);
                DrawingUtils.FillLineRect(g, brush, line.p.X, line.p.Y, line.q.X, line.q.Y, line_r);
            }

        }
    }

    public class EditorDecoration : EditorObject
    {
        private static SolidBrush deco_block_brush = new SolidBrush(Color.FromArgb(0x80, 0xFF, 0xFF, 0xFF));

        readonly public DecorationData Data;

        public override bool Pickable { get { return EditorDisplayPanel.ShowDecoration; } }
        public override bool Visible { get { return EditorDisplayPanel.ShowAll || Pickable; } }
        public override bool IsDirectionality { get { return true; } }
        public override float Direction
        {
            get { return Data.Direction; }
            set
            {
                if (Data.RegionType == DecorationData.Shape.STRIP)
                {
                    this.Data.StripDirection = value;
                }
                this.Data.Direction = value;
            }
        }
        public override RectangleF LocalBounds
        {
            get
            {
                if (Data.RegionType == DecorationData.Shape.STRIP)
                {
                    return new RectangleF(-Data.W / 2, -Data.W / 2, Data.W, Data.W);
                }
                else
                {
                    return new RectangleF(-Data.W / 2, -Data.H / 2, Data.W, Data.H);
                }
            }
        }


        public EditorDecoration(EditorWorld wd, MsgPutDecoration data)
            : base(wd, data.Data)
        {
            this.Data = data.Data;
        }

        public override bool touch(float x, float y)
        {
            if (Data.RegionType == DecorationData.Shape.RECTANGLE)
            {
                return base.touch(x, y);
            }
            else if (Data.RegionType == DecorationData.Shape.ROUND)
            {
                return CMath.includeEllipsePoint(X, Y, Data.W / 2, Data.H / 2, x, y);
            }
            else if (Data.RegionType == DecorationData.Shape.STRIP)
            {
                float line_r = Data.W / 2;
                Vector2 p = new Vector2(X, Y);
                Vector2 q = new Vector2(X, Y);
                MathVector.movePolar(p, Data.StripDirection, -Data.H / 2);
                MathVector.movePolar(q, Data.StripDirection, +Data.H / 2);
                return CMath.includeStripWidthPoint(p.X, p.Y, q.X, q.Y, line_r, x, y);
            }
            return base.touch(x, y);
        }

        public override void render(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen.Width = pen_hight.Width = penscale;
            if (Data.RegionType == DecorationData.Shape.RECTANGLE)
            {
                if (Selected)
                {
                    g.FillRectangle(brush, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
                }
                g.DrawRectangle(pen, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
            }
            else if (Data.RegionType == DecorationData.Shape.ROUND)
            {
                if (Selected)
                {
                    g.FillEllipse(brush, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
                }
                g.DrawEllipse(pen, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
            }
            else if (Data.RegionType == DecorationData.Shape.STRIP)
            {
                float line_r = Data.W / 2;
                Line2 line = new Line2(0, 0, 0, 0);
                MathVector.movePolar(line.p, Data.StripDirection, -Data.H / 2);
                MathVector.movePolar(line.q, Data.StripDirection, +Data.H / 2);
                if (Selected)
                {
                    DrawingUtils.FillLineRect(g, brush, line.p.X, line.p.Y, line.q.X, line.q.Y, line_r);
                }
                g.DrawEllipse(pen, -Data.W / 2, -Data.W / 2, Data.W, Data.W);
                DrawingUtils.DrawLineRect(g, pen, line.p.X, line.p.Y, line.q.X, line.q.Y, line_r);
            }
            if (this.Selected)
            {
                using (var pts = ListObjectPool<CommonLang.Geometry.Vector2>.AllocAutoRelease())
                {
                    var pen_res = new Pen(Color.Yellow);
                    pen_res.Width = penscale;
                    Data.GetResourcePoints(pts);
                    var st = g.Save();
                    try
                    {
                        if (Data.ShapDirectionality) { g.RotateTransform(CMath.RadiansToDegrees(Data.StripDirection)); }
                        foreach (var pt in pts)
                        {
                            DrawingUtils.DrawCross(g, pen_res, pt.X, pt.Y, 2 * penscale);
                        }
                    }
                    finally
                    {
                        g.Restore(st);
                    }
                }
            }
        }

        public override void render_begin(Graphics g)
        {
            base.render_begin(g);
        }

        public override void render_in_terrain(Graphics g)
        {
            if (this.Data.Blockable)
            {
                if (this.Selected || this.Pickable)
                {
                    var ed = this;
                    var bounds = ed.LocalBounds;
                    AstarManhattan.ForEachTerrainAction action = (bx, by) =>
                    {
                        g.FillRectangle(deco_block_brush, bx * world.CellW, by * world.CellH, world.CellW, world.CellH);
                    };
                    var mmap = world.ManhattanMap;
                    switch (ed.Data.RegionType)
                    {
                        case DecorationData.Shape.RECTANGLE:
                            AstarManhattan.ForEachTerrainRect(mmap, ed.X + bounds.X, ed.Y + bounds.Y, bounds.Width, bounds.Height, action);
                            break;
                        case DecorationData.Shape.ROUND:
                            AstarManhattan.ForEachTerrainEllipse(mmap, ed.X + bounds.X, ed.Y + bounds.Y, bounds.Width, bounds.Height, action);
                            break;
                        case DecorationData.Shape.STRIP:
                            Line2 line = new Line2(Data.X, Data.Y, Data.X, Data.Y);
                            MathVector.movePolar(line.p, Data.StripDirection, -Data.H / 2);
                            MathVector.movePolar(line.q, Data.StripDirection, +Data.H / 2);
                            AstarManhattan.ForEachTerrainStripWidth(mmap, line.p.X, line.p.Y, line.q.X, line.q.Y, Data.W / 2, action);
                            break;

                    }
                }
            }
        }
    }

    public class EditorPoint : EditorObject
    {
        readonly public PointData Data;
        private static Pen pen_link = new Pen(Color.FromArgb(0x80, 0x80, 0x80, 0xFF));
        private static Brush brush_link = new SolidBrush(Color.FromArgb(0x80, 0x80, 0x80, 0xFF));

        public override RectangleF LocalBounds
        {
            get
            {
                float penscale = 1f / world.getCameraScale();
                float ds = -4 * penscale;
                float dw = 8 * penscale;
                return new RectangleF(ds, ds, dw, dw);
            }
        }
        public override bool Pickable { get { return EditorDisplayPanel.ShowPoint; } }
        public override bool Visible { get { return EditorDisplayPanel.ShowAll || Pickable; } }
        public override float Direction { get { return 0; } set { } }
        public override bool IsDirectionality { get { return false; } }

        public EditorPoint(EditorWorld wd, MsgPutPoint data)
            : base(wd, data.Data)
        {
            this.Data = data.Data;
        }

        public override bool touch(float x, float y)
        {
            float penscale = 1f / world.getCameraScale();
            return CMath.includeRoundPoint(this.X, this.Y, 4 * penscale, x, y);
        }

        public override void render(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen_link.Width = pen.Width = pen_hight.Width = penscale;

            if (Data.NextNames != null)
            {
                float dw = 4 * penscale;
                float cw = 12 * penscale;
                float ch = 16 * penscale;

                foreach (string next in Data.NextNames)
                {
                    EditorObject nextobb = world.GetObject(next);
                    if (nextobb != null)
                    {
                        float ox = nextobb.X - X;
                        float oy = nextobb.Y - Y;

                        if (Selected)
                        {
                            DrawingUtils.FillCursor(g, brush_link, 0, 0, ox, oy, dw, cw, ch);
                        }
                        DrawingUtils.DrawCursor(g, pen_link, 0, 0, ox, oy, dw, cw, ch);
                    }
                }
            }
            {
                float ds = -4 * penscale;
                float dw = 8 * penscale;
                g.DrawEllipse(pen, ds, ds, dw, dw);
                if (Selected)
                {
                    g.FillEllipse(brush, ds, ds, dw, dw);
                }
            }

        }

    }

    public class EditorArea : EditorObject
    {
        readonly public AreaData Data;
        private Pen pen_link;
        private Pen pen_border;

        private Vector2 old_pos = new Vector2();
        private Vector2 old_size = new Vector2();
        private bool area_dirty = true;
        private ManhattanMapAreaGenerator.ContinuousMapNode area_blocks;

        public override RectangleF LocalBounds
        {
            get
            {
                float penscale = 1f / world.getCameraScale();
                float ds = -4 * penscale;
                float dw = 8 * penscale;
                return new RectangleF(ds, ds, dw, dw);
            }
        }
        public override bool Pickable { get { return EditorDisplayPanel.ShowArea; } }
        public override bool Visible { get { return EditorDisplayPanel.ShowAll || Pickable; } }
        public override float Direction { get { return 0; } set { } }
        public override bool IsDirectionality { get { return false; } }

        public EditorArea(EditorWorld wd, MsgPutArea data)
            : base(wd, data.Data)
        {
            this.Data = data.Data;
            var bc = Color.FromArgb((0xFFFFFF & data.Data.Color));
            this.pen_link = new Pen(Color.FromArgb(0x40, bc));
            this.pen_border = new Pen(Color.FromArgb(0xFF, bc));
        }

        public override bool touch(float x, float y)
        {
            float penscale = 1f / world.getCameraScale();
            return CMath.includeRoundPoint(this.X, this.Y, 4 * penscale, x, y);
        }

        public override void render(Graphics g)
        {
            float penscale = 1f / world.getCameraScale();
            pen_border.Width = pen_link.Width = pen.Width = pen_hight.Width = penscale;
            {
                float ds = -4 * penscale;
                float dw = 8 * penscale;
                g.DrawEllipse(pen, ds, ds, dw, dw);
                if (Selected)
                {
                    g.FillEllipse(brush, ds, ds, dw, dw);
                }
            }
            if (Selected)
            {
                g.DrawRectangle(pen_hight, -Data.W / 2, -Data.H / 2, Data.W, Data.H);
            }
            if (world.IsAreaDirty || old_pos.X != X || old_pos.Y != Y || old_size.X != Data.W || old_size.Y != Data.H)
            {
                this.area_dirty = true;
            }
            this.old_pos.SetX(X);
            this.old_pos.SetY(Y);
            this.old_size.SetX(Data.W);
            this.old_size.SetY(Data.H);
        }
        public override void render_in_terrain(Graphics g)
        {
            if (this.Selected || this.Pickable)
            {
                if (area_dirty)
                {
                    area_dirty = false;
                    area_blocks = world.MapAreaGenerator.GetContinuousMapNode(X, Y, Data.W / 2, Data.H / 2);
                }
                if (area_blocks != null)
                {
                    int current_value;
                    if (world.MapAreaGenerator.TryGetValue(X, Y, out current_value))
                    {
                        int sx, sy;
                        int sw = world.CellW;
                        int sh = world.CellH;
                        foreach (var index in area_blocks)
                        {
                            sx = index.BX * sw;
                            sy = index.BY * sh;
                            g.DrawRectangle(pen_link, sx, sy, sw, sh);
                            if (area_blocks.GetIndex(index.BX, index.BY - 1) == null)
                                g.DrawLine(pen_border, sx, sy, sx + sw, sy);
                            if (area_blocks.GetIndex(index.BX, index.BY + 1) == null)
                                g.DrawLine(pen_border, sx, sy + sh, sx + sw, sy + sh);
                            if (area_blocks.GetIndex(index.BX - 1, index.BY) == null)
                                g.DrawLine(pen_border, sx, sy, sx, sy + sh);
                            if (area_blocks.GetIndex(index.BX + 1, index.BY) == null)
                                g.DrawLine(pen_border, sx + sw, sy, sx + sw, sy + sh);
                        }
                    }
                }
            }
        }

    }

}