using Godot;
using Movementtests.interfaces;

[GlobalClass]
public partial class Enemy : CharacterBody3D, IDamageable, IDamageMaker, IHealthable, IKillable
{
	[Export]
	public Node3D Target { get; set; }

	[Export]
	public RDamage GetDamageDealt { get; set; }
	
	[Export]
	public CHealth CHealth { get; set; }
	
	[Export]
	public CDamageable CDamage { get; set; }
	
	[Export]
	public Node CMovement { get; set; }
	
	[Export]
	public RDeathEffect[] DeathEffects { get; set; }
	
	private Area3D _damageBox;
	
	public override void _Ready()
	{
		_damageBox = GetNode<Area3D>("DamageBox");
		
		_damageBox.BodyEntered += OnDamageBoxTriggered;
		CDamage.DamageTaken += ReduceHealth;
		CHealth.Dead += Kill;
	}
	
	public override void _PhysicsProcess(double delta)
	{
		var targetPlanar = new Vector3(Target.GlobalPosition.X, GlobalPosition.Y, Target.GlobalPosition.Z);
		LookAt(targetPlanar);

		if (CMovement is not IMoveable movement) return;
		
		var inputs = new MovementInputs(
			Velocity: Velocity,
			TargetLocation: Target.GlobalPosition,
			isOnFloor: IsOnFloor(),
			gravity: GetGravity(),
			delta: delta
		);
		Velocity = movement!.ComputeVelocity(inputs);
		MoveAndSlide();
	}

	public void OnDamageBoxTriggered(Node3D body)
	{
		GD.Print("Take this!");
		if(body is IDamageable damageable) damageable.TakeDamage(GetDamageDealt);
	}

	public float TakeDamage(RDamage damage)
	{
		GD.Print("Ouch!");
		return CDamage.TakeDamage(damage);
	}

	public void ReduceHealth(float amount)
	{
		CHealth.ReduceHealth(amount);
	}

	public void Kill()
	{
		foreach (var killable in DeathEffects.ToIKillables())
		{
			killable.Kill();
		}
		QueueFree();
	}
}