/*
Copyright (c) 2018, Lars Brubaker, John Lewin
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of the FreeBSD Project.
*/

using System.ComponentModel;
using System.IO;
using System.Threading.Tasks;
using MatterHackers.Agg;
using MatterHackers.Agg.Font;
using MatterHackers.Agg.Platform;
using MatterHackers.Agg.Transform;
using MatterHackers.Agg.UI;
using MatterHackers.Agg.VertexSource;
using MatterHackers.DataConverters3D;
using MatterHackers.MatterControl.CustomWidgets;
using MatterHackers.MatterControl.DesignTools.Operations;
using MatterHackers.MatterControl.Plugins.BrailleBuilder;
using MatterHackers.PolygonMesh.Processors;
using MatterHackers.VectorMath;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;

namespace MatterHackers.MatterControl.DesignTools
{
	[HideChildrenFromTreeView]
	[WebPageLink("Website", "About Braille", "https://en.wikipedia.org/wiki/Braille")]
	public class BrailleObject3D : Object3D
	{
		public BrailleObject3D()
		{
		}

		public BrailleObject3D(string textToEncode)
		{
			TextToEncode = textToEncode;
			Rebuild();
		}

		public static async Task<BrailleObject3D> Create()
		{
			var item = new BrailleObject3D();

			await item.Rebuild();
			return item;
		}

		[DisplayName("Text")]
		public string TextToEncode { get; set; } = "Braille";

		[Description("Sets the depth of the tile the Braille is printed on")]
		[DisplayName("Backing Depth")]
		public double BaseHeight { get; set; } = 3;

		[Description("Use Braille grade 2 (contractions)")]
		public bool UseGrade2 { get; set; }

		[Description("Choose to render as Braille or standard text. This can help show how grade 2 works.")]
		public bool RenderAsBraille { get; set; } = true;

		[Description("Create a hook so the Braille can be hung from a necklace or keychain.")]
		public bool AddHook { get; set; }

		static TypeFace typeFace = TypeFace.LoadFrom(StaticData.Instance.ReadAllText(Path.Combine("Fonts", "Braille.svg")));

		public override async void OnInvalidate(InvalidateArgs invalidateType)
		{
			if (invalidateType.InvalidateType.HasFlag(InvalidateType.Properties)
				&& invalidateType.Source == this)
			{
				await Rebuild();
			}

			base.OnInvalidate(invalidateType);
		}

		public override Task Rebuild()
		{
			using (RebuildLock())
			{
				using (new CenterAndHeightMaintainer(this))
				{
					this.Children.Modify(list =>
					{
						list.Clear();
					});

					var brailleText = TextToEncode;
					if (UseGrade2)
					{
						brailleText = BrailleGrade2.ConvertString(brailleText);
					}

					double pointSize = 18.5;
					double pointsToMm = 0.352778;
					IObject3D textObject = new Object3D();
					var offest = 0.0;

					TypeFacePrinter textPrinter;
					if (RenderAsBraille)
					{
						textPrinter = new TypeFacePrinter(brailleText, new StyledTypeFace(typeFace, pointSize));
					}
					else
					{
						textPrinter = new TypeFacePrinter(brailleText, new StyledTypeFace(ApplicationController.Instance.GetTypeFace("Liberation_Mono"), pointSize));
					}

					foreach (var letter in brailleText.ToCharArray())
					{
						IObject3D letterObject;
						TypeFacePrinter letterPrinter;
						if (RenderAsBraille)
						{
							letterPrinter = new TypeFacePrinter(letter.ToString(), new StyledTypeFace(typeFace, pointSize));
							var scalledLetterPrinter = new VertexSourceApplyTransform(letterPrinter, Affine.NewScaling(pointsToMm));

							// add all the spheres to letterObject
							letterObject = new Object3D();

							var vertexCount = 0;
							var positionSum = Vector2.Zero;
							var lastPosition = Vector2.Zero;
							// find each dot outline and get it's center and place a sphere there
							foreach (var vertex in scalledLetterPrinter.Vertices())
							{
								switch (vertex.Command)
								{
									case Agg.FlagsAndCommand.Stop:
									case Agg.FlagsAndCommand.EndPoly:
									case Agg.FlagsAndCommand.FlagClose:
									case Agg.FlagsAndCommand.MoveTo:
										if (vertexCount > 0)
										{
											var center = positionSum / vertexCount;
											double radius = 1.44 / 2;// (center - lastPosition).Length;
											var sphere = new HalfSphereObject3D(radius * 2, 15)
											{
												Color = Color.LightBlue
											};
											sphere.Translate(center.X, center.Y);
											letterObject.Children.Add(sphere);
										}
										vertexCount = 0;
										positionSum = Vector2.Zero;
										break;
									case Agg.FlagsAndCommand.Curve3:
									case Agg.FlagsAndCommand.Curve4:
									case Agg.FlagsAndCommand.LineTo:
										vertexCount++;
										lastPosition = vertex.Position;
										positionSum += lastPosition;
										break;
								}
							}
						}
						else
						{
							letterPrinter = new TypeFacePrinter(letter.ToString(), new StyledTypeFace(ApplicationController.Instance.GetTypeFace("Liberation_Mono"), pointSize));
							var scalledLetterPrinter = new VertexSourceApplyTransform(letterPrinter, Affine.NewScaling(pointsToMm));
							letterObject = new Object3D()
							{
								Mesh = VertexSourceToMesh.Extrude(scalledLetterPrinter, 1),
								Color = Color.LightBlue
							};
						}

						letterObject.Matrix = Matrix4X4.CreateTranslation(offest, 0, 0);
						textObject.Children.Add(letterObject);

						offest += letterPrinter.GetSize(letter.ToString()).X * pointsToMm;
					}

					// add a plate under the dots
					var padding = .9 * pointSize * pointsToMm / 2;
					var size = textPrinter.LocalBounds * pointsToMm;

					// make the base
					var basePath = new VertexStorage();
					basePath.MoveTo(0, 0);
					basePath.LineTo(size.Width + padding, 0);
					basePath.LineTo(size.Width + padding, size.Height + padding);
					basePath.LineTo(padding, size.Height + padding);
					basePath.LineTo(0, size.Height);

					IObject3D basePlate = new Object3D()
					{
						Mesh = VertexSourceToMesh.Extrude(basePath, BaseHeight)
					};

					basePlate = new AlignObject3D_2(basePlate, FaceAlign.Top, textObject, FaceAlign.Bottom, 0, 0, .01);
					basePlate = new AlignObject3D_2(basePlate, FaceAlign.Left | FaceAlign.Front,
						size.Left - padding / 2,
						size.Bottom - padding / 2);
					this.Children.Add(basePlate);

					basePlate.Matrix *= Matrix4X4.CreateRotationX(MathHelper.Tau / 4);

					// add an optional chain hook
					if (AddHook)
					{
						// x 10 to make it smoother
						double edgeWidth = 3;
						double height = basePlate.ZSize();
						IVertexSource leftSideObject = new RoundedRect(0, 0, height / 2, height, 0)
						{
							ResolutionScale = 10
						};

						IVertexSource cicleObject = new Ellipse(0, 0, height / 2, height / 2)
						{
							ResolutionScale = 10
						};

						cicleObject = new Align2D(cicleObject, Side2D.Left | Side2D.Bottom, leftSideObject, Side2D.Left | Side2D.Bottom, -.01);
						IVertexSource holeObject = new Ellipse(0, 0, height / 2 - edgeWidth, height / 2 - edgeWidth)
						{
							ResolutionScale = 10
						};
						holeObject = new SetCenter2D(holeObject, cicleObject.GetBounds().Center);

						IVertexSource hookPath = leftSideObject.Plus(cicleObject);
						hookPath = hookPath.Minus(holeObject);

						IObject3D chainHook = new Object3D()
						{
							Mesh = VertexSourceToMesh.Extrude(hookPath, BaseHeight),
							Matrix = Matrix4X4.CreateRotationX(MathHelper.Tau / 4)
						};

						chainHook = new AlignObject3D_2(chainHook, FaceAlign.Left | FaceAlign.Bottom | FaceAlign.Back, basePlate, FaceAlign.Right | FaceAlign.Bottom | FaceAlign.Back, -.01);

						this.Children.Add(chainHook);
					}

					// add the object that is the dots
					this.Children.Add(textObject);
					textObject.Matrix *= Matrix4X4.CreateRotationX(MathHelper.Tau / 4);
				}
			}

			this.CancelAllParentBuilding();
			Parent?.Invalidate(new InvalidateArgs(this, InvalidateType.Children));
			return base.Rebuild();
		}
	}
}