using BeWo.Service.Plugins;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BeWo.Service.Core
{
	public static class BeWoServerPathHelper
	{
		public static string GetUniqueRequestLogFile()
		{
			var folder_path = Path.Combine(getLogRootPath(), "ai", "requests");
			Directory.CreateDirectory(folder_path);

			var file_name = getUniqueFileName(folder_path, $"{DateTime.Now:yyyy.MM.dd HH_mm_ss}", 20);

			if (file_name == null)
				return null;

			return Path.Combine(folder_path, file_name + ".log");
		}

		public static string GetServiceLogFile()
			=> Path.Combine(getLogRootPath(), "service.log.txt");
		public static string GetWCFErrorLogFile()
			=> Path.Combine(getLogRootPath(), "wcferror.log.txt");
		public static string GetJsonErrorLogFile()
			=> Path.Combine(getLogRootPath(), "jsonerror.log.txt");
		public static string GetApiServiceTestFile()
			=> Path.Combine(getLogRootPath(), "apiservice.test.txt");
		public static string GetAiServiceLogFile()
			=> Path.Combine(getLogRootPath(), "aiservice.log.txt");

		private static string getLogRootPath()
		{
			var log_root = Path.Combine(getExecutionRoot(), "logs", "LogFiles");
			Directory.CreateDirectory(log_root);
			return log_root;
		}

		private static string getUniqueFileName(string folderPath, string fileName, int retries)
		{
			var path = Path.Combine(folderPath, fileName);

			if (!File.Exists(path))
				return fileName;

			var name = 2;
			while(retries-- > 0)
			{
				var new_fileName = fileName + $" ({name})";
				var new_path = Path.Combine(folderPath, new_fileName);

				if (!File.Exists(new_path))
					return new_fileName;

				name++;
			}

			return null;

		}

		#region Most basics

		/// <summary>
		/// Holt den Server Root Path
		/// Normalerweise: C:/BeWoPlaner
		/// </summary>
		private static string getRoot()
			=> MergedConfig.GetSetting(WebConfigSetting.BeWoPlanerServiceRoot);

		/// <summary>
		/// Holt den Service Root Path
		/// Normalerweise: C:/BeWoPlaner/service/Host
		/// </summary>
		private static string getExecutionRoot()
			=> AppDomain.CurrentDomain.BaseDirectory;

		#endregion
	}
}