using Godot;
using System;

public partial class Player2 : CharacterBody3D
{
   [Export]
   private float _speed = 5.0f;
   [Export]
   private PackedScene _fireProjectile;
   [Export]
   private PackedScene _altFireProjectile;

   public bool CanShoot { get; private set; }

   public override void _Ready()
   {
      CanShoot = true;
   }

   public override void _PhysicsProcess(double delta)
   {
      Velocity = CalculateCharacterMovement(delta);
      MoveAndSlide();
   }

   public override void _UnhandledInput(InputEvent @event)
   {
      if (Input.IsActionJustPressed("exit"))
         GetTree().Quit();

      if (Input.IsActionJustPressed("p2_fire") && CanShoot)
         Fire();
      if (Input.IsActionJustPressed("p2_altfire") && CanShoot)
         AltFire();
   }

   private Vector3 CalculateCharacterMovement(double delta)
   {
      var velocity = Velocity;

      var inputDir = Input.GetVector("p2_left", "p2_right", "p2_up", "p2_down");
      var direction = (Transform.Basis * new Vector3(inputDir.X, 0, inputDir.Y)).Normalized();
      if (direction != Vector3.Zero)
      {
         velocity.X = direction.X * _speed;
         velocity.Z = direction.Z * _speed;
         GetNode<Node3D>("Pivot").LookAt(Position + direction, Vector3.Up);
      }
      else
      {
         velocity.X = Mathf.MoveToward(Velocity.X, 0, _speed);
         velocity.Z = Mathf.MoveToward(Velocity.Z, 0, _speed);
      }
      return velocity;
   }

   private async void Fire()
   {
      var projectile = _fireProjectile.Instantiate<Projectile>();
      projectile.Position = Position + new Vector3(0f, 1f, -1f);
      GetParent().AddChild(projectile);
      CanShoot = false;
      await ToSignal(GetTree().CreateTimer(projectile.Cooldown), "timeout");
      CanShoot = true;
   }

   private async void AltFire()
   {
      var projectile = _altFireProjectile.Instantiate<Projectile>();
      projectile.Position = Position + new Vector3(0f, 1f, -1f);
      GetParent().AddChild(projectile);
      CanShoot = false;
      await ToSignal(GetTree().CreateTimer(projectile.Cooldown), "timeout");
      CanShoot = true;
   }

   private void OnHit(Node3D node)
   {
      QueueFree();
   }
}