using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Net;

namespace FilterAPI
{
	public class Config
	{
		private readonly Dictionary<string, string> _configValues = new Dictionary<string, string>();

		private readonly string _configUrl = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Conf", "Config.txt");

		public Config()
		{
			var configClient = new WebClient();

			try
			{
				using (var configStream = new StreamReader(configClient.OpenRead(_configUrl) ?? throw new InvalidOperationException()))
				{
					var lines = new List<string>();

					string currentLine;

					while ((currentLine = configStream.ReadLine()) != null) { lines.Add(currentLine); }

					var decryptedLines = lines.ToArray();
					foreach (var decryptedLine in decryptedLines)
					{
						var lineSplit = decryptedLine.Split(new[] { ": " }, StringSplitOptions.None);

						if (_configValues.ContainsKey(lineSplit[0])) { File.WriteAllLines(
							$"{AppDomain.CurrentDomain.BaseDirectory}{AppDomain.CurrentDomain.FriendlyName.Replace(".exe", "")}ConfDuplicateRow.txt", new[] { lineSplit[0] }); }
						_configValues.Add(lineSplit[0], lineSplit[1]);
					}
				}
			}
			catch (Exception error)
			{
				File.WriteAllLines(
					$"{AppDomain.CurrentDomain.BaseDirectory}{AppDomain.CurrentDomain.FriendlyName.Replace(".exe", "")}Crash.txt", new[] { error.ToString() });

				Environment.Exit(0);
			}
		}

		public string GetConfigValue(string value)
		{
			if (value.Contains("Feature") || value.Contains("Stng")) // default features to false if not defined
			{
				try
				{
					return _configValues[value];
				}
				catch
				{
					Debug.WriteLine($"Value not in config: {value}");
					return "false";
				}
			}
			try
			{
				return _configValues[value];
			}
			catch
			{
				Debug.WriteLine($"Value not in config: {value}");
				throw new KeyNotFoundException($"Value not in config: {value}");
			}
		}
	}
}