/*
 * Copyright (c) 2010, Tess Snider

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
*/
using System;
using System.IO;
using System.Collections.Generic;
using System.Text.RegularExpressions;

namespace DesertPaintLab
{
	public class ReagentManager
	{
        // PP format
		static Regex reagentRegex = new Regex(@"(?<name>\w+)\s*\|\s*(?<red>\d+),\s*(?<green>\d+),\s*(?<blue>\d+)\s*\|\s*(?<cost>\d+)\s*\|\s*(?<enabled>[YN])\s*\|\s*(?<bulk>(bulk|normal))\s*\|\s*(?<max>\d+).*");
		static Regex catalystRegex = new Regex(@"(?<name>\w+)\s*\|\s*catalyst\s*\|\s*(?<cost>\d+)\s*\|\s*(?<enabled>[YN])\s*\|\s*(?<bulk>(bulk|normal)).*");
        static Regex internalReagentRegex = new Regex(@"(?<name>(\w*\s)*\w+)\s*\|\s*(?<ppname>\w+)\s*\|\s*(?<red>\d+),\s*(?<green>\d+),\s*(?<blue>\d+).*");
        static Regex internalCatalystRegex = new Regex(@"(?<name>(\w+\s)*\w+)\s*\|\s*(?<ppname>\w+)\s*\|\s*catalyst.*");
		
		static SortedDictionary<string,Reagent> reagents = new SortedDictionary<string, Reagent>();
        static List<string> names = new List<string>();
        static Dictionary<string, string> nameLookup = new Dictionary<string, string>(); // pp name to our name
		
		static Gtk.ListStore nameStore = new Gtk.ListStore(typeof(string));

		static public Gtk.ListStore NameListModel
		{
			get
			{
				return nameStore;	
			}
		}

        static public List<string> Names
        {
            get
            {
                return names;
            }
        }
		
		public ReagentManager ()
		{
			
		}

        // Loads reagent name/colors
        public static void Load(string file)
        {
            Match match;
            string line;
            reagents.Clear();
            using (StreamReader reader = new StreamReader(file))
            {
                while ((line = reader.ReadLine()) != null) 
                {
                    match = internalReagentRegex.Match(line); 
                    if (match.Success)
                    {
                        string name = match.Groups["name"].Value;
                        string ppname = match.Groups["ppname"].Value;
                        reagents.Add(name,
                            new Reagent(name, ppname,
                                byte.Parse(match.Groups["red"].Value),
                                byte.Parse(match.Groups["green"].Value),
                                byte.Parse(match.Groups["blue"].Value)));
                        nameStore.AppendValues(name);
                        names.Add(name);
                        nameLookup.Add(ppname, name);
                    }
                    else
                    {
                        match = internalCatalystRegex.Match(line);
                        if (match.Success)
                        {
                            string name = match.Groups["name"].Value;
                            string ppname = match.Groups["ppname"].Value;
                            reagents.Add(name, new Reagent(ppname, ppname));
                            nameStore.AppendValues(name);
                            names.Add(name);
                            nameLookup.Add(ppname, name);
                        }
                    }
                }
            }
        }
		
		public static void LoadProfileReagents(string file)
		{	
			Match match;
			string line;
			using (StreamReader reader = new StreamReader(file))
			{
				while ((line = reader.ReadLine()) != null) 
                {
					match = reagentRegex.Match(line); 
					if (match.Success)
					{
						string ppname = match.Groups["name"].Value;
                        string name = null;
                        nameLookup.TryGetValue(ppname, out name);
                        Reagent reagent = GetReagent(name);
                        if (reagent != null && !reagent.IsCatalyst)
                        {
                            reagent.Enabled = match.Groups["enabled"].Value.Equals("Y");
                            reagent.Cost = uint.Parse(match.Groups["cost"].Value);
                            reagent.RecipeMax = uint.Parse(match.Groups["max"].Value);
                        }
					}
					else
					{
						match = catalystRegex.Match(line);
						if (match.Success)
						{
							string ppname = match.Groups["name"].Value;
                            string name = null;
                            nameLookup.TryGetValue(ppname, out name);
                            Reagent reagent = GetReagent(name);
                            if (reagent != null && reagent.IsCatalyst)
                            {
                                reagent.Enabled = match.Groups["enabled"].Value.Equals("Y");
                                reagent.Cost = uint.Parse(match.Groups["cost"].Value);
                            }
						}
					}
                }
			}
		}

        public static void SaveProfileReagents(string file)
        {
            using (StreamWriter writer = new StreamWriter(file))
            {
                writer.WriteLine("// Ingredients are in the form:");
                writer.WriteLine("// Name | RGB values | cost | enabled (Y/N) | bulk/normal | max items per paint (1-20)");
                writer.WriteLine("//");
                writer.WriteLine("// It is recommended to only change the cost value");
                writer.WriteLine("// It is not recommended to set many of the ingredients above 10 per paint");

                List<Reagent> sortedReagents = new List<Reagent>(reagents.Count);
                foreach (KeyValuePair<string, Reagent> pair in reagents)
                {
                    sortedReagents.Add(pair.Value);
                }
                sortedReagents.Sort( (x,y) => ((x.IsCatalyst && !y.IsCatalyst) ? 1 : ((y.IsCatalyst && !x.IsCatalyst) ? -1 : x.PracticalPaintName.CompareTo(y.PracticalPaintName))) );
                foreach (Reagent reagent in sortedReagents)
                {
                    if (!reagent.IsCatalyst)
                    {
                        writer.WriteLine("{0,-10} | {1,3}, {2,3}, {3,3} | {4,7} | {5} | {6} | {7}",
                            reagent.PracticalPaintName, 
                            reagent.Color.Red, reagent.Color.Blue, reagent.Color.Green,
                            reagent.Cost,
                            reagent.Enabled ? "Y" : "N",
                            reagent.RecipeMax >= 10 ? "  bulk" : "normal",
                            reagent.RecipeMax);
                    }
                    else
                    {
                        writer.WriteLine("{0,-10} | catalyst | {1,7} | {2} | normal | 1",
                            reagent.PracticalPaintName, 
                            reagent.Cost,
                            reagent.Enabled ? "Y" : "N");
                    }
                }
            }
        }

		
		public static void InitializeReactions(ref ReactionSet reactions)
		{
			foreach (KeyValuePair<string, Reagent> pair1 in reagents)
			{
				foreach (KeyValuePair<string, Reagent> pair2 in reagents)
				{
					if (pair1.Key != pair2.Key)
					{
                        reactions.Set(pair1.Value, pair2.Value, null);
					}
				}
			}
		}
		
		public static void PopulateReagents(ref Gtk.ComboBox comboBox)
		{
			comboBox.Clear();
			
			Gtk.CellRendererText cell = new Gtk.CellRendererText();
	        comboBox.PackStart(cell, false);
	        comboBox.AddAttribute(cell, "text", 0);
	        Gtk.ListStore store = new Gtk.ListStore(typeof(string));
	        comboBox.Model = store;
			
			store.AppendValues("");
            foreach (string name in names)
			{
				store.AppendValues(name);
			}
		}
		
		/*
		public static void PopulatePigments(ref Gtk.ComboBox comboBox)
		{
			comboBox.Clear();
			
			Gtk.CellRendererText cell = new Gtk.CellRendererText();
	        comboBox.PackStart(cell, false);
	        comboBox.AddAttribute(cell, "text", 0);
	        Gtk.ListStore store = new Gtk.ListStore(typeof(string));
	        comboBox.Model = store;
			
			store.AppendValues("");
			foreach (KeyValuePair<string, Reagent> pair in reagents)
			{
				if (!pair.Value.IsCatalyst)
				{
					store.AppendValues(pair.Key);
				}
			}			
		}
		*/
		
		public static Reagent GetReagent(string reagentName)
		{
			Reagent returnVal;
			reagents.TryGetValue(reagentName, out returnVal);
            if (returnVal == null)
            {
                // convert pp name to our internal name
                string otherName = null;
                nameLookup.TryGetValue(reagentName, out otherName);
                if (otherName != null)
                {
                    reagents.TryGetValue(otherName, out returnVal);
                }
            }
			return returnVal;
		}
	}
	
}