using System;
using XRL.UI;
using XRL.World.Capabilities;
using XRL.World.Parts;
using XRL.World.Parts.Mutation;

// this is 95% copy/pasted from decompiled vanilla HeightenedHearingEffect
// only thing added was a reference to the implant because it has the part rather than the implantee
namespace XRL.World.Effects
{
	[Serializable]
	public class CyberneticHeightenedHearingEffect : Effect
	{
		public bool Identified;
		public int Level = 1;
		public GameObject Listener;
		public GameObject Implant;

		public CyberneticHeightenedHearingEffect() => this.Duration = 1;

		public CyberneticHeightenedHearingEffect(int Level, GameObject Listener, GameObject Implant)
		  : this()
		{
			this.Level = Level;
			this.Listener = Listener;
			this.Implant = Implant;
		}

		public override int GetEffectType() => 2048;

		public override bool SameAs(Effect e) => false;

		public override string GetDescription() => (string)null;

		public override bool WantEvent(int ID, int cascade) => base.WantEvent(ID, cascade) || ID == SingletonEvent<EndTurnEvent>.ID || ID == EnteringCellEvent.ID;

		public override bool HandleEvent(AfterPlayerBodyChangeEvent E)
		{
			this.CheckListen();
			return base.HandleEvent(E);
		}

		public override bool HandleEvent(EndTurnEvent E)
		{
			this.CheckListen();
			return base.HandleEvent(E);
		}

		public override bool HandleEvent(EnteringCellEvent E)
		{
			this.CheckListen();
			return base.HandleEvent(E);
		}

		private bool BadListener()
		{
			this.Listener = (GameObject)null;
			this.Object?.RemoveEffect((Effect)this);
			return true;
		}

		public bool CheckListen()
		{
			if (!GameObject.Validate(this.Object))
				return true;
			if (!GameObject.Validate(ref this.Listener) || !this.Listener.IsPlayer())
				return this.BadListener();
			CyberneticsHearingAid part = this.Listener.GetPart<CyberneticsHearingAid>();
			if (part == null || part.Level <= 0)
				return this.BadListener();
			if (!(Implant.GetPart("CyberneticsHearingAid") is CyberneticsHearingAid otherpart))
				return this.BadListener();
			int num = this.Object.DistanceTo(this.Listener);
			if (num > part.GetRadius())
				return this.BadListener();
			if (this.Identified || this.Object.CurrentCell == null)
				return true;
			if (((int)((double)(100 + 10 * this.Level) / Math.Pow((double)(num + 9), 2.0) * 100.0)).in100())
			{
				this.Identified = true;
				if (this.Listener.IsPlayer())
					AutoAct.CheckHostileInterrupt();
			}
			return false;
		}

		public override bool Apply(GameObject Object)
		{
			this.CheckListen();
			return true;
		}

		public override void RegisterActive(GameObject Object, IEventRegistrar Registrar) => Registrar.Register((IEventSource)The.Game, (IEventHandler)this, PooledEvent<AfterPlayerBodyChangeEvent>.ID);

		public bool HeardAndNotSeen(GameObject obj)
		{
			if (obj == null)
				return false;
			if (!obj.IsVisible())
				return true;
			Cell currentCell = obj.CurrentCell;
			return currentCell != null && (!currentCell.IsLit() || !currentCell.IsExplored());
		}

		public override bool FinalRender(RenderEvent E, bool bAlt)
		{
			if (!this.HeardAndNotSeen(this.Object) || !this.Object.CanHypersensesDetect())
				return true;
			E.Tile = (string)null;
			if (this.Identified)
			{
				E.HighestLayer = 0;
				E.NoWake = true;
				this.Object.ComponentRender(E);
				E.RenderString = this.Object.Render.RenderString;
				if (Options.UseTiles)
					E.Tile = this.Object.Render.Tile;
			}
			else
				E.RenderString = "?";
			E.ColorString = "&K";
			E.DetailColor = "K";
			E.CustomDraw = true;
			return false;
		}
	}
}