using System;
using System.Collections.Generic;
using System.Reflection;

namespace AllocsFixes.CustomCommands
{
	public class TeleportPlayer : ConsoleCmdAbstract {
		public override string GetDescription () {
			return "teleport a player to a given location";
		}

		public override string GetHelp () {
			return "Usage:\n" +
				"  1. teleportplayer <steam id / player name / entity id> <x> <y> <z>\n" +
				"  2. teleportplayer <steam id / player name / entity id> <target steam id / player name / entity id>\n" +
				"  3. teleportplayer <inc x> <inc y> <inc z>\n" +
				"1. Teleports the player given by his SteamID, player name or entity id (as given by e.g. \"lpi\")\n" +
				"   to the specified location. Use y = -1 to spawn on ground.\n" +
				"2. As 1, but destination given by another player which has to be online\n" +
				"3. Teleport the local player to the position calculated by his current position and the given offsets";
		}

		public override string[] GetCommands () {
			return new string[] { "teleportplayer", "tele" };
		}

		public override void Execute (List<string> _params, CommandSenderInfo _senderInfo) {
			try {
				if (_params.Count < 2 || _params.Count > 4) {
					SdtdConsole.Instance.Output ("Wrong number of arguments, expected 2 to 4, found " + _params.Count + ".");
					return;
				} else {
					ClientInfo ci1 = null;
					EntityPlayer ep1 = null;
					UnityEngine.Vector3 destPos = new UnityEngine.Vector3 ();
 
					if (_params.Count == 2 || _params.Count == 4) {
						ci1 = ConsoleHelper.ParseParamIdOrName (_params [0]);
						if (ci1 == null) {
							SdtdConsole.Instance.Output ("Playername or entity/steamid id not found.");
							return;
						}
						ep1 = GameManager.Instance.World.Players.dict [ci1.entityId];

						if (_params.Count == 4) {
							int x = int.MinValue;
							int y = int.MinValue;
							int z = int.MinValue;

							int.TryParse (_params [1], out x);
							int.TryParse (_params [2], out y);
							int.TryParse (_params [3], out z);

							if (x == int.MinValue || y == int.MinValue || z == int.MinValue) {
								SdtdConsole.Instance.Output ("At least one of the given coordinates is not a valid integer");
								return;
							}

							destPos.x = x;
							destPos.y = y;
							destPos.z = z;
						} else if (_params.Count == 2) {
							ClientInfo ci2 = ConsoleHelper.ParseParamIdOrName (_params [1]);
							if (ci2 == null) {
								SdtdConsole.Instance.Output ("Target playername or entity/steamid id not found.");
								return;
							}
							EntityPlayer ep2 = GameManager.Instance.World.Players.dict [ci2.entityId];

							destPos = ep2.GetPosition ();
							destPos.y += 1;
							destPos.z += 1;
						}
					} else if (_params.Count == 3) {
						if (_senderInfo.RemoteClientInfo == null) {
							SdtdConsole.Instance.Output ("This command can only be executed in variant 3 on the in-game console.");
							return;
						}

						ci1 = _senderInfo.RemoteClientInfo;
						ep1 = GameManager.Instance.World.Players.dict [ci1.entityId];

						int x = int.MinValue;
						int y = int.MinValue;
						int z = int.MinValue;

						int.TryParse (_params [0], out x);
						int.TryParse (_params [1], out y);
						int.TryParse (_params [2], out z);

						if (x == int.MinValue || y == int.MinValue || z == int.MinValue) {
							SdtdConsole.Instance.Output ("At least one of the given coordinates is not a valid integer");
							return;
						}

						destPos.x = ep1.position.x + x;
						destPos.y = ep1.position.y + y;
						destPos.z = ep1.position.z + z;
					}

					NetPackageTeleportPlayer pkg = new NetPackageTeleportPlayer (destPos);

					ci1.SendPackage (pkg);
				}
			} catch (Exception e) {
				Log.Out ("Error in TeleportPlayer.Run: " + e);
			}
		}

	}
}