using System;
using System.Collections.Generic;

namespace AllocsFixes.CustomCommands
{
	public class RemoveLandProtection : ConsoleCmdAbstract
	{
		public override string GetDescription ()
		{
			return "removes the association of a land protection block to the owner";
		}

		public override string GetHelp () {
			return "Usage:" +
				   "  1. removelandprotection <steamid>\n" +
				   "  2. removelandprotection <x> <y> <z>\n" +
				   "  3. removelandprotection nearby [length]\n" +
				   "1. Remove all land claims owned by the user with the given SteamID\n" +
				   "2. Remove only the claim block on the exactly given block position\n" +
				   "3. Remove all claims in a square with edge length of 64 (or the optionally specified size) around the executing player";
		}

		public override string[] GetCommands ()
		{
			return new string[] { "removelandprotection", "rlp" };
		}

		private void removeById (string _id)
		{
			try {
				PersistentPlayerList ppl = GameManager.Instance.GetPersistentPlayerList ();

				if (_id.Length < 1 || !ppl.Players.ContainsKey (_id)) {
					SdtdConsole.Instance.Output ("Not a valid Steam ID or user has never logged on. Use \"listlandprotection\" to get a list of keystones.");
					return;
				}
				if (ppl.Players [_id].LPBlocks == null || ppl.Players [_id].LPBlocks.Count == 0) {
					SdtdConsole.Instance.Output ("Player does not own any keystones. Use \"listlandprotection\" to get a list of keystones.");
					return;
				}

				List<BlockChangeInfo> changes = new List<BlockChangeInfo> ();
				foreach (Vector3i pos in ppl.Players[_id].LPBlocks) {
					BlockChangeInfo bci = new BlockChangeInfo (pos, new BlockValue (0), true, false);
					changes.Add (bci);
				}
				GameManager.Instance.SetBlocksRPC (changes);

				SdtdConsole.Instance.Output ("Tried to remove #" + changes.Count + " land protection blocks for player \"" + _id + "\". Note "+
				                      "that only blocks in chunks that are currently loaded (close to any player) could be removed. "+
				                      "Please check for remaining blocks by running:");
				SdtdConsole.Instance.Output("  listlandprotection " + _id);
			} catch (Exception e) {
				Log.Out ("Error in RemoveLandProtection.removeById: " + e);
			}
		}

		private void removeByPosition (List<string> _coords)
		{
			try {
				int x = int.MinValue;
				int.TryParse (_coords [0], out x);
				int y = int.MinValue;
				int.TryParse (_coords [1], out y);
				int z = int.MinValue;
				int.TryParse (_coords [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;
				}

				Vector3i v = new Vector3i (x, y, z);

				PersistentPlayerList ppl = GameManager.Instance.GetPersistentPlayerList ();

				Dictionary<Vector3i, PersistentPlayerData> d = ppl.m_lpBlockMap;
				if (d == null || !d.ContainsKey (v)) {
					SdtdConsole.Instance.Output ("No land protection block at the given position or not a valid position. Use \"listlandprotection\" to get a list of keystones.");
					return;
				}

				BlockChangeInfo bci = new BlockChangeInfo (v, new BlockValue (0), true, false);

				List<BlockChangeInfo> changes = new List<BlockChangeInfo> ();
				changes.Add (bci);

				GameManager.Instance.SetBlocksRPC (changes);

				SdtdConsole.Instance.Output ("Land protection block at (" + v.ToString () + ") removed");
			} catch (Exception e) {
				Log.Out ("Error in RemoveLandProtection.removeByPosition: " + e);
			}
		}

		public override void Execute (List<string> _params, CommandSenderInfo _senderInfo)
		{
			try {
				if (_senderInfo.RemoteClientInfo != null) {
					if (_params.Count >= 1 && _params [0].EqualsCaseInsensitive ("nearby")) {
						_params.Add (_senderInfo.RemoteClientInfo.playerId);
					}
				}

				if (_params.Count > 0 && _params [0].EqualsCaseInsensitive ("nearby")) {
					try {
						int closeToDistance = 32;
						if (_params.Count == 3) {
							if (!int.TryParse (_params[1], out closeToDistance)) {
								SdtdConsole.Instance.Output ("Given length is not an integer!");
								return;
							}
							closeToDistance /= 2;
						}
						ClientInfo ci = ConsoleHelper.ParseParamSteamIdOnline (_params [_params.Count - 1]);
						EntityPlayer ep = GameManager.Instance.World.Players.dict [ci.entityId];
						Vector3i closeTo = new Vector3i (ep.GetPosition ());
						LandClaimList.PositionFilter[] posFilters = new LandClaimList.PositionFilter[] { LandClaimList.CloseToFilter2dRect (closeTo, closeToDistance) };
						Dictionary<PersistentData.Player, List<Vector3i>> claims = LandClaimList.GetLandClaims (null, posFilters);

						try {
							List<BlockChangeInfo> changes = new List<BlockChangeInfo> ();
							foreach (KeyValuePair<PersistentData.Player, List<Vector3i>> kvp in claims) {
								foreach (Vector3i v in kvp.Value) {
									BlockChangeInfo bci = new BlockChangeInfo (v, new BlockValue (0), true, false);
									changes.Add (bci);
								}
							}
							GameManager.Instance.SetBlocksRPC (changes);
						} catch (Exception e) {
							SdtdConsole.Instance.Output ("Error removing claims");
							Log.Out ("Error in RemoveLandProtection.Run: " + e);
							return;
						}
					} catch (Exception e) {
						SdtdConsole.Instance.Output ("Error getting current player's position");
						Log.Out ("Error in RemoveLandProtection.Run: " + e);
						return;
					}
				} else if (_params.Count == 1) {
					removeById (_params [0]);
				} else if (_params.Count == 3) {
					removeByPosition (_params);
				} else {
					SdtdConsole.Instance.Output ("Illegal parameters");
				}
			} catch (Exception e) {
				Log.Out ("Error in RemoveLandProtection.Run: " + e);
			}
		}
	}
}