/*
TShock, a server mod for Terraria
Copyright (C) 2011-2019 Pryaxis & TShock Contributors

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
using System;

namespace TShockAPI.Modules
{
	public class ReduceConsoleSpam : Module
	{
		public override void Initialise() =>
			OTAPI.Hooks.Main.StatusTextChange += OnMainStatusTextChange;

		public override void Dispose() =>
			OTAPI.Hooks.Main.StatusTextChange -= OnMainStatusTextChange;

		/// <summary>
		/// Holds the last status text value, to determine if there is a suitable change to report.
		/// </summary>
		private string _lastStatusText = null;

		/// <summary>
		/// Aims to reduce the amount of console spam by filtering out load/save progress
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e">OTAPI event</param>
		private void OnMainStatusTextChange(object sender, OTAPI.Hooks.Main.StatusTextChangeArgs e)
		{
			bool replace(string text)
			{
				if (e.Value.StartsWith(text))
				{
					var segment = e.Value.Substring(0, text.Length);
					if (_lastStatusText != segment)
					{
						Console.WriteLine(segment); // write it manually instead of terraria which causes double writes
						_lastStatusText = segment;
					}
					e.Value = "";
					return true;
				}
				return false;
			}

			_ = replace("Resetting game objects")
				|| replace("Settling liquids")
				|| replace("Loading world data")
				|| replace("Saving world data")
				|| replace("Validating world save");
		}
	}
}