using Godot;
using System;
using Movementtests.interfaces;


[GlobalClass]
public partial class FirstEnemy : CharacterBody3D, IDamageable, IKillable, IKnockbackable, IDamageMaker
{
	[Export]
	public Node3D Target { get; set; }
	
	[Export]
	public EnemyInitInputs Inputs;

	[Export]
	public RDamage GetDamageDealt { get; set; }
	[Export]
	public RDamageModifier[] DamageModifiers { get; set; }
	
	private RayCast3D _wallInFrontRayCast;
	private Area3D _damageBox;
	
	public override void _Ready()
	{
		_wallInFrontRayCast = GetNode<RayCast3D>("WallInFrontRayCast");
		_damageBox = GetNode<Area3D>("DamageBox");
		_damageBox.BodyEntered += OnDamageBoxTriggered;
	}

	public override void _PhysicsProcess(double delta)
	{
		var target = Target.GlobalPosition;
		var direction = (target - GlobalPosition).Normalized();

		var targetPlane = new Vector3(target.X, GlobalPosition.Y, target.Z);
		LookAt(targetPlane);
		
		var velocity = Velocity;
		velocity.X = direction.X * Inputs.Speed;
		velocity.Z = direction.Z * Inputs.Speed;

		if (_wallInFrontRayCast.IsColliding())
			velocity.Y = Inputs.Speed;
		else if (!IsOnFloor())
			velocity += GetGravity() * (float)delta;
		
		Velocity = velocity;
		MoveAndSlide();
	}

	public void OnDamageBoxTriggered(Node3D body)
	{
		if(body is IDamageable damageable) damageable.TakeDamage(GetDamageDealt);
	}

	public void TakeDamage(RDamage damage)
	{
		foreach (var damageable in DamageModifiers.ToIDamageables())
			damageable.TakeDamage(damage);
	}
}