using System;
using System.Collections.Generic;
using System.Drawing;
using System.Text;
using Vintagestory.API.Client;
using Vintagestory.API.Common;
using Vintagestory.API.Common.Entities;
using Vintagestory.API.MathTools;
using Vintagestory.GameContent;

namespace Automap
{
	public static class DefaultDesignators
	{
		public static BlockDesignator Roads =
			 new BlockDesignator(
				new AssetLocation("game", "stonepath"),
				Color.Yellow,
				EnumBlockMaterial.Gravel
			);

		public static BlockDesignator GroundSigns =
			 new BlockDesignator(
				new AssetLocation("game", "sign-ground"),
				Color.Teal,
				EnumBlockMaterial.Wood,
				DecodeSign
			);

		public static BlockDesignator WallSigns =
			 new BlockDesignator(
				new AssetLocation("game", "sign-wall"),
				Color.Teal,
				EnumBlockMaterial.Wood,
				DecodeSign
			);

		public static BlockDesignator PostSigns =
			 new BlockDesignator(
				new AssetLocation("game", "signpost"),
				Color.Teal,
				EnumBlockMaterial.Wood,
				DecodePostSign
			);

		public static BlockDesignator Translocators =
			 new BlockDesignator(
				new AssetLocation("game", "statictranslocator-normal"),
				Color.SteelBlue,
				EnumBlockMaterial.Metal,
				DecodeTranslocator
			);

		public static EntityDesignator Traders =
			 new EntityDesignator(
				new AssetLocation("game", "humanoid-trader"),
				Color.LightGoldenrodYellow,
				 EnumEntityState.Active,
				KeepTrackOfMerchant
			);

		/// <summary>
		/// Not just blocks, but block-entities as well!
		/// </summary>
		/// <returns>The block designators.</returns>
		public static List<BlockDesignator>  DefaultBlockDesignators( )
		{
		return	new List<BlockDesignator>{
				DefaultDesignators.Roads,
				DefaultDesignators.GroundSigns,
				DefaultDesignators.WallSigns,
				DefaultDesignators.PostSigns,
				DefaultDesignators.Translocators,
				};
		}

		public static List<EntityDesignator> DefaultEntityDesignators( )
		{
			return new List<EntityDesignator>{
				DefaultDesignators.Traders,
		};
		}

		internal static void DecodeSign(ICoreClientAPI clientAPI, PointsOfInterest poi, BlockPos posn, Block block)
		{
		clientAPI.Logger.VerboseDebug("Sign Designator Invoked!");
		//sign Text into a POI field...
		BlockEntitySign signEntity = clientAPI.World.BlockAccessor.GetBlockEntity(posn) as BlockEntitySign;
		
		if (signEntity != null && !String.IsNullOrEmpty(signEntity.text))
		{
		
		poi.AddReplace(
					new PointOfInterest {
						Location = posn.Copy( ),
						Notes = signEntity.text,
						Timestamp = DateTimeOffset.UtcNow,
					}
					);
		
		}

		}


		internal static void DecodePostSign(ICoreClientAPI clientAPI, PointsOfInterest poi, BlockPos posn, Block block)
		{
		clientAPI.Logger.VerboseDebug("Post-sign Designator Invoked!");
		//sign post Text into a POI field...
		BlockEntitySignPost signEntity = clientAPI.World.BlockAccessor.GetBlockEntity(posn) as BlockEntitySignPost;

		if (signEntity != null && signEntity.textByCardinalDirection?.Length > 0 ) {

		poi.AddReplace(
					new PointOfInterest {
						Location = posn.Copy( ),
						Notes = string.Join(",", signEntity.textByCardinalDirection),
						Timestamp = DateTimeOffset.UtcNow,
					}
					);

		}
		}

		internal static void KeepTrackOfMerchant(ICoreClientAPI clientAPI, EntitiesOfInterest poi, BlockPos posn, Entity entity)
		{
		clientAPI.Logger.VerboseDebug("Trader: {0} @ {1}", entity.GetName( ), posn);

		var message = $"{entity.GetName( )}";
		var traderJoe = entity as EntityTrader;
		if (traderJoe.TradeProps != null) {
		message = $"{traderJoe.GetName( )} Alive:{traderJoe.Alive} - Gears: {traderJoe.TradeProps.Money}, ";
		}
		poi.Upsert(entity, message);
		}

		internal static void DecodeTranslocator(ICoreClientAPI clientAPI, PointsOfInterest poi, BlockPos posn, Block block)
		{
		clientAPI.Logger.VerboseDebug("TRANSLOCATOR Designator Invoked!");
		//Where to? and from!
		
		BlockEntityStaticTranslocator te = clientAPI.World.BlockAccessor.GetBlockEntity(posn) as BlockEntityStaticTranslocator;

		if (te != null ) {

		StringBuilder textTarget = new StringBuilder( );
		//translocatorEntity.GetBlockInfo(clientAPI.World.Player, textTarget);

		textTarget.Append(te.Activated ? "Online " : "offline ");
		textTarget.Append(" Dest.: ");
		textTarget.Append(te.TargetLocation != null ? te.TargetLocation.PrettyCoords(clientAPI) : "???");//Or ABS coords?		

		poi.AddReplace(
					new PointOfInterest {
						Location = posn.Copy( ),
						Notes = textTarget.ToString(),
						Timestamp = DateTimeOffset.UtcNow,
					}
					);

		}
		}
	}
}