/*
    Tesses.ProfileIcon A profile Icon Generator
    Copyright (C) 2023  Mike Nolan

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.Collections.Generic;
using System.Text;
using SixLabors.Fonts;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Drawing.Processing;
using SixLabors.ImageSharp.Drawing;
using SixLabors.ImageSharp.Processing;
namespace Tesses.ProfileIcon
{
    
    public class ProfileIconCreator
    {
        public ProfileIconCreator()
        {

        }
        public ProfileIconCreator WithMonoChrome()
        {
            return WithColor(0,0,0,255,255,255).WithColor(255,255,255,0,0,0);
        }
        public ProfileIconCreator WithDefaultColors()
        {
            return WithMonoChrome()
            .WithColor(0,0,0,210,16,230)
            .WithColor(255,255,255,0,87,255)
            .WithColor(255,255,255,0,255,0)
            .WithColor(0,0,0,255,0,0)
            .WithColor(0,0,0,255,255,0)
            .WithColor(0,0,0,213,252,0)
            .WithColor(0,0,0,255,181,243)
            .WithColor(0,0,0,255,181,181)
            .WithColor(255,255,255,154,14,14)
            .WithColor(255,255,255,14,134,153)
            .WithColor(255,255,255,222,133,0)
            .WithColor(255,255,255,0,164,0);
        }
        public ProfileIconCreator WithColor(byte fr,byte fg,byte fb,byte br,byte bg,byte bb)
        {
            return WithColor(new Rgb24(fr,fg,fb),new Rgb24(br,bg,bb));
        }
        public ProfileIconCreator WithColor(Rgb24 foreground,Rgb24 background)
        {
            Colors.Add((foreground,background));
            return this;
        }
        public ProfileIconCreator WithFont(Font font)
        {
            this.Font = font;
            return this;
        }
        public ProfileIconCreator WithDefaultFont(float em=360)
        {
            FontFamily fam;
            FontCollection collection=new FontCollection();
            using(var strm = GetType().Assembly.GetManifestResourceStream("Tesses.ProfileIcon.assets.FreeMonoBold.ttf"))
            fam=collection.Add(strm);
            Font font = new Font(fam,em);
            
            return WithFont(font);
        }
        public ProfileIconCreator WithSize(Size size)
        {
            return this;
        }
        public ProfileIconCreator WithProfileIconColorPicker(ProfileIconColorPicker picker)
        {
            this.Picker = picker;
            return this;
        }
        public ProfileIconCreator WithHashedProfileIconColorPicker()
        {
            return WithProfileIconColorPicker(new HashedProfileIconColorPicker());
        }
        public ProfileIconCreator WithProfileIconColorPicker(ProfileIconColorPickerDelegate del)
        {
            return this.WithProfileIconColorPicker(ProfileIconColorPicker.FromDelegate(del));
        }
        public Image<Rgb24> GenerateCustomText(string text,Rgb24 foreground,Rgb24 background,Font font,Size size)
        {
             Image<Rgb24> image = new Image<Rgb24>(size.Width,size.Height,background);
           var res=TextMeasurer.MeasureSize(text,new TextOptions(font));

           float x = ((float)size.Width/2) - ((res.Width-res.X)/2);
           float y = ((float)size.Height/2) - ((res.Height-res.Y)/2);
           image.Mutate(e=>{
               e.DrawText(text,font,foreground,new PointF(x,y));
           });
           return image;
        }
        public Image<Rgb24> GenerateCustomText(string text,Rgb24 foreground,Rgb24 background)
        {
            if(Font == null)WithDefaultFont();
            return GenerateCustomText(text,foreground,background,Font,Size);
        }
        public Image<Rgb24> GenerateCustomText(string text)
        {
              if(Colors.Count == 0) WithDefaultColors();
              int myColor = Picker.GetColor(this,text) % Colors.Count;
          
           var (foreground,background) = Colors[myColor];
           return GenerateCustomText(text,foreground,background);
        }
        public Image<Rgb24> Generate(string name)
        {
            
            int myColor = Picker.GetColor(this,name) % Colors.Count;
          
           var (foreground,background) = Colors[myColor];
           string[] nameParts = name.Split(' ');
           StringBuilder b= new StringBuilder();

           foreach(var nP in nameParts)
           {
               if(nP.Length > 0)
               b.Append(nP[0]);
           }
           string nameP=b.ToString().ToUpper();
            
           return GenerateCustomText(nameP,foreground,background);
        }
        public Image<Rgb24> Generate(string text,bool customText)
        {
            if(customText) return GenerateCustomText(text);
            return Generate(text);
        }

        public List<(Rgb24 Foreground, Rgb24 Background)> Colors {get;set;}=new List<(Rgb24 Foreground, Rgb24 Background)>();

        public ProfileIconColorPicker Picker {get;set;}=ProfileIconColorPicker.FromDelegate((a,b)=>2);

        public Size Size {get;set;}=new Size(900);

        public Font Font {get;set;}=null;
    }   
}