namespace TomPIT.Connected.Configuration
{
	internal static class SysConfiguration
	{
		private const string DefaultStart = "Connected.Instance.Start, Connected.Instance";

		private static List<MicroServiceDescriptor> _microServices;
		private static List<string> _locations;
		private static string _start;
		public static List<MicroServiceDescriptor> MicroServices => _microServices;
		public static List<string> Locations => _locations;
		public static string Start => _start;
		public static void Build()
		{
			var cb = new ConfigurationBuilder();
			var appPath = AppContext.BaseDirectory;
			var segments = new Uri(appPath).Segments;

			segments = segments.Select(e => e.Replace("%20", " ")).ToArray();

			for (var i = 1; i <= segments.Length; i++)
			{
				var pathBase = Path.Combine(segments[0..i]);
				var filePath = Path.Combine(pathBase, "sys.json");

				if (File.Exists(filePath))
				{
					cb.AddJsonFile(filePath, true, false);
					break;
				}
			}

			cb.AddEnvironmentVariables();

			var config = cb.Build();

			_microServices = new List<MicroServiceDescriptor>();
			_locations = new List<string>();

			config.Bind("microServices", _microServices);
			config.Bind("locations", _locations);

			_start = config["start"];

			if (string.IsNullOrWhiteSpace(_start))
				_start = DefaultStart;
		}
	}
}