using RecrownedAthenaeum.Tools.CommandProcessor;
using RecrownedAthenaeum.Tools.TextureAtlas;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;

namespace RecrownedAthenaeum.Tools.TextureAtlasTools
{
    class TexturePackerCommand : EngineCommand
    {

        public TexturePackerCommand() : base("texturepacker")
        {
            arguments = new EngineCommandArgument[6] {
                new EngineCommandArgument("-i", "for input directory containing the textures. Required."),
                new EngineCommandArgument("-o", "Path for output files. Points to non-existent file. Will create texture and definitions file with name. Required."),
                new EngineCommandArgument("-9p", "Can be used multiple times for defining a 9patch. This parameter requires a name, left patch, right patch, top patch, and bottom patch in the format name,a,b,c,d. Optional."),
                new EngineCommandArgument("-sp", "Starting power for one side of the texture. Default is 8."),
                new EngineCommandArgument("-mp", "Maximum power for one side of the texture. Default is 8."),
                new EngineCommandArgument("-dau", "Disables automatically upscaling the texture."),
            };

            help = "Packs a given directory composed of png and jpg files into an atlas. Can also add 9patch properties. Runnig without arguments triggers interactive mode.";
        }

        public override void Run(string[] arguments)
        {

            TexturePacker texturePacker = null;
            string path = null;
            int mp = 8;
            int sp = 8;
            bool dau = false;
            string output = null;

            if (arguments == null)
            {

            }

            path = arguments[1 + IndexOfArgumentIn("-i", arguments)];
            int.TryParse(arguments[IndexOfArgumentIn("-mp", arguments) + 1], out mp);
            int.TryParse(arguments[IndexOfArgumentIn("-sp", arguments) + 1], out sp);
            output = arguments[IndexOfArgumentIn("-o", arguments) + 1];
            if (HasArgument("-dau", arguments)) dau = true;

            texturePacker = new TexturePacker(path, mp, sp);
            ConsoleUtilities.WriteWrappedLine("Calculated minimum texture size: " + texturePacker.TextureLength + "x" + texturePacker.TextureLength + " with a total of " + texturePacker.TexturesFound + " textures.");

            try
            {
                texturePacker.Build(!dau);
            }
            catch (InvalidOperationException e)
            {
                throw new ArgumentException(e.Message);
            }

            for (int i = 0; i < arguments.Length; i++)
            {
                if (arguments[i] == "-9p")
                {
                    if (i + 5 >= arguments.Length) throw new ArgumentException("-9p is not followed by proper specifiers for a 9Patch (format: \"-9p textureName,a,b,c,d\" where a, b, c, and d are integers definining the border regions for the 9patch.)");
                    string[] nPatchArgs = arguments[i + 1].Split(',');
                    try
                    {
                        texturePacker.SetNinePatch(nPatchArgs[0], int.Parse(nPatchArgs[1]), int.Parse(nPatchArgs[2]), int.Parse(nPatchArgs[3]), int.Parse(nPatchArgs[4]));
                    }
                    catch (FormatException)
                    {
                        throw new ArgumentException("-9p argument parameters must be in the format \"-9p textureName,a,b,c,d\" where a, b, c, and d are integers definining the border regions for the 9patch.");
                    }
                }
            }
            texturePacker.Save(Path.GetDirectoryName(output), Path.GetFileName(output));
            Console.WriteLine("Complete. Final texture size: " + texturePacker.TextureLength + "x" + texturePacker.TextureLength + ".");
        }
    }
}