using System.Linq;
using Oxide.Core.Libraries.Covalence;

namespace Oxide.Plugins
{
	[Info("CodeLock Auth API", "2CHEVSKII", "0.1.1")]
	[Description("API for checking player authorization to code locks in building")]
	class CodeLockAuthAPI : CovalencePlugin
	{
		#region API

		bool IsCodeLocksAuthorized(ulong userid, BuildingManager.Building building, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			return Authed(userid, building, acceptGuest, noLockBehaviour, acceptAny);
		}

		bool IsCodeLocksAuthorized(string userIDString, BuildingManager.Building building, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			ulong userid;
			if(string.IsNullOrEmpty(userIDString) || !ulong.TryParse(userIDString, out userid))
			{
				return false;
			}

			return IsCodeLocksAuthorized(userid, building, acceptGuest, noLockBehaviour,acceptAny);
		}

		bool IsCodeLocksAuthorized(IPlayer player, BuildingManager.Building building, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			var obj = player?.Object as BasePlayer;

			return IsCodeLocksAuthorized(obj, building, acceptGuest, noLockBehaviour, acceptAny);
		}

		bool IsCodeLocksAuthorized(BasePlayer player, BuildingManager.Building building, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			if(!player)
			{
				return false;
			}

			return IsCodeLocksAuthorized(player.userID, building, acceptGuest, noLockBehaviour, acceptAny);
		}

		bool IsCodeLocksAuthorized(ulong userid, BaseEntity entity, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			return Authed(userid, GetEntityBuilding(entity), acceptGuest, noLockBehaviour, acceptAny);
		}

		bool IsCodeLocksAuthorized(string userIDString, BaseEntity entity, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			return IsCodeLocksAuthorized(userIDString, GetEntityBuilding(entity), acceptGuest, noLockBehaviour, acceptAny);
		}

		bool IsCodeLocksAuthorized(IPlayer player, BaseEntity entity, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			return IsCodeLocksAuthorized(player, GetEntityBuilding(entity), acceptGuest, noLockBehaviour, acceptAny);
		}

		bool IsCodeLocksAuthorized(BasePlayer player, BaseEntity entity, bool acceptGuest = true, bool noLockBehaviour = true, bool acceptAny = false)
		{
			return IsCodeLocksAuthorized(player, GetEntityBuilding(entity), acceptGuest, noLockBehaviour, acceptAny);
		}

		#endregion

		#region Check

		public BuildingManager.Building GetEntityBuilding(BaseEntity entity)
		{
			return entity?.GetBuildingPrivilege()?.GetBuilding();
		}

		public bool Authed(ulong userid, BuildingManager.Building building, bool guest, bool noLock, bool any)
		{
			if(building == null)
			{
				return false;
			}

			var locks = building.decayEntities.SelectMany(de => de.children?.OfType<CodeLock>()).Where(cl => cl != null).ToArray();

			var count = locks.Length;

			if(count < 1)
			{
				return noLock;
			}

			var count2 = 0;

			for(int i = 0; i < count; i++)
			{
				var cl = locks[i];
				var flag = false;

				if(cl.whitelistPlayers.Contains(userid) || (guest && cl.guestPlayers.Contains(userid)))
				{
					flag = true;
				}

				if(!flag)
				{
					continue;
				}

				if(any)
				{
					return true;
				}

				count2++;
			}

			return count2 == count;
		}

		#endregion
	}
}