using System;

using System.Collections.Generic;

using System.IO;

using System.Text.RegularExpressions;

namespace DesertPaintLab

{

    public class Settings

    {

        private Settings()

        {

        }

        private static Dictionary<string, string> _settings = new Dictionary<string, string>();

        public static void Get(string key, out int value)

        {

            value = 0;

            string valStr;

            if ( _settings.TryGetValue(key.ToLower(), out valStr) )

            {

                Int32.TryParse(valStr, out value);

            }

        }

        public static void Get(string key, out bool value)

        {

            value = false;

            string valStr;

            if ( _settings.TryGetValue(key.ToLower(), out valStr) )

            {

                Boolean.TryParse(valStr, out value);

            }

        }

        public static void Set(string key, int value)

        {

            _settings[key.ToLower()] = value.ToString();

        }

        public static void Get(string key, bool value)

        {

            _settings[key.ToLower()] = value.ToString();

        }

        public static void Save()

        {

            string settingsPath = System.IO.Path.Combine(FileUtils.AppDataPath, "settings");

            using (StreamWriter writer = new StreamWriter(settingsPath))

            {

                foreach (KeyValuePair<string, string> pair in _settings)

                {

                    writer.WriteLine("{0}={1}", pair.Key, pair.Value);

                }

            }

        }

        static Regex optionEntry = new Regex(@"(?<opt>[^#=][^=]*)=(?<optval>.*)$");

        public static bool Load()

        {

            string settingsPath = System.IO.Path.Combine(FileUtils.AppDataPath, "settings");

            if (System.IO.File.Exists(settingsPath))

            {

                string line;

                Match match;

                using (StreamReader reader = new StreamReader(settingsPath))

                {

                    while ((line = reader.ReadLine()) != null) 

                    {

                        match = optionEntry.Match(line);

                        if (match.Success)

                        {

                            String optName = match.Groups["opt"].Value.ToLower();

                            String optVal = match.Groups["optval"].Value.Trim();

                            if (optName.Equals("debug"))

                            {

                                // convert

                                optName = "enabledebugmenu";

                            }

                            _settings[optName.ToLower()] = optVal;

                        }

                    }

                }

                return true;

            }

            return false;

        }

    }

}