using System;
using Godot;

namespace GodotspaceShooter.Scripts;

public partial class InputManager : Node
{
	private const string GAME_PAUSE = "Game_Pause";
	private const string PLAYER_MOVE_FORWARD = "Player_Move_Forward";
	private const string PLAYER_MOVE_BACKWARDS = "Player_Move_Backwards";
	private const string PLAYER_MOVE_LEFT = "Player_Move_Left";
	private const string PLAYER_MOVE_RIGHT = "Player_Move_Right";
	private const string PLAYER_FIRE = "Player_Fire";

	private Vector3 moveDirection;
	private Vector3 rotationDirection;
	
	public event EventHandler StartCountdown;

	public static InputManager Instance { get; private set; }

	public override void _Ready() => Instance = this;

	public override void _UnhandledInput(InputEvent @event) {
		//Countdown
		if (GameManager.Instance.Countdown && Input.IsAnythingPressed()) StartCountdown?.Invoke(this,EventArgs.Empty);
		
		//Pause
		if (Input.IsActionJustReleased(GAME_PAUSE)) GameManager.Instance.GamePaused = GameManager.Instance.GamePaused switch { true => false, false => true };

		if (GameManager.Instance.GamePaused || GameManager.Instance.Countdown || GameManager.Instance.GameOver) return;
		//Movement
		float moveVelocity = PlayerShip.Instance.MoveVelocity;
		float rotationVelocity = PlayerShip.Instance.RotationVelocity;

		moveDirection = Vector3.Zero;
		rotationDirection = Vector3.Zero;
		
		if (Input.IsActionPressed(PLAYER_MOVE_FORWARD)) moveDirection.Z = -moveVelocity;
		if (Input.IsActionJustPressed(PLAYER_MOVE_FORWARD)) rotationDirection.X = -rotationVelocity;
		if (Input.IsActionPressed(PLAYER_MOVE_BACKWARDS)) moveDirection.Z = +moveVelocity;
		if (Input.IsActionJustPressed(PLAYER_MOVE_BACKWARDS)) rotationDirection.X = +rotationVelocity;
		if (Input.IsActionPressed(PLAYER_MOVE_LEFT)) moveDirection.X = -moveVelocity;
		if (Input.IsActionJustPressed(PLAYER_MOVE_LEFT)) rotationDirection.Z = -rotationVelocity * 2;
		if (Input.IsActionPressed(PLAYER_MOVE_RIGHT)) moveDirection.X = moveVelocity;
		if (Input.IsActionJustPressed(PLAYER_MOVE_RIGHT)) rotationDirection.Z = +rotationVelocity * 2;
		if (Input.IsActionJustReleased(PLAYER_MOVE_LEFT) || Input.IsActionJustReleased(PLAYER_MOVE_RIGHT)) rotationDirection = Vector3.Zero;

		PlayerShip.Instance.MoveDirection = moveDirection;
		PlayerShip.Instance.RotationDirection = rotationDirection;
		
		//Shooting
		if (Input.IsActionJustPressed(PLAYER_FIRE)) PlayerShip.Instance.Shooting = true;
		// if (Input.IsActionJustReleased(PLAYER_FIRE)) PlayerShip.Instance.Shooting = false;
	}
}