//Blizzless Project 2022
using System;
using DiIiS_NA.Core.Helpers.IO;
using DiIiS_NA.Core.Logging;
using Nini.Config;

namespace DiIiS_NA.Core.Config
{
	public sealed class ConfigurationManager
	{
		private static readonly Logger Logger = LogManager.CreateLogger("ConfM");
		private static readonly IniConfigSource Parser; // the ini parser.
		private static readonly string ConfigFile;
		private static bool _fileExists = false; // does the ini file exists?

		static ConfigurationManager()
		{
			try
			{
				ConfigFile = $"{FileHelpers.AssemblyRoot}/{"config.ini"}"; // the config file's location.
				Parser = new IniConfigSource(ConfigFile); // see if the file exists by trying to parse it.
				_fileExists = true;
			}
			catch (Exception)
			{
				Parser = new IniConfigSource(); // initiate a new .ini source.
				_fileExists = false;
				Logger.Warn("Error loading settings config.ini, will be using default settings.");
			}
			finally
			{
				// adds aliases so we can use On and Off directives in ini files.
				Parser!.Alias.AddAlias("On", true);
				Parser!.Alias.AddAlias("Off", false);

				// logger level aliases.
				Parser!.Alias.AddAlias("MinimumLevel", Logger.Level.Trace);
				Parser!.Alias.AddAlias("MaximumLevel", Logger.Level.Trace);
			}

			Parser.ExpandKeyValues();
		}

		internal static IConfig Section(string section) // Returns the asked config section.
		{
			return Parser.Configs[section];
		}

		internal static IConfig AddSection(string section) // Adds a config section.
		{
			return Parser.AddConfig(section);
		}

		internal static void Save() //  Saves the settings.
		{
			if (_fileExists) Parser.Save();
			else
			{
				Parser.Save(ConfigFile);
				_fileExists = true;
			}
		}
	}
}