using UnityEngine;
using System.Collections;

public class DigitalPanelController : Predicate {

    private string _currentDigits = "";
    public GameObject guiPrototype;
    private Canvas _guiInstance;
    public bool locked = true;
    public string password = "4815";
    public PlayerSensor sensor;
    private GameAction _showPadAction;

    public string CurrentDigits {
        get { return _currentDigits; }
        set {
            _currentDigits = value;
            OnPasswordUpdated();
        }
    }

    private void OnPasswordUpdated() {
        if (_currentDigits == password) {
            HideGui();
            locked = false;
        }
    }

    public void ShowGui() {
        if (_guiInstance == null) {
            _guiInstance = ((GameObject)Instantiate(guiPrototype)).GetComponent<Canvas>();
            _guiInstance.GetComponent<DigitalPanelGuiController>().Panel = this;

            var c = FindObjectOfType<GameController>();
            c.ShowUI(_guiInstance.GetComponent<UiController>());

            Time.timeScale = 0;
        }
    }

    public void HideGui() {
        if (_guiInstance != null) {
            var c = FindObjectOfType<GameController>();
            c.ShowPreviousUi(true);
            Destroy(_guiInstance.gameObject);
        }
        Time.timeScale = 1;
    }

	// Use this for initialization
	void Start () {
	    if (sensor != null) {
            sensor.PlayerEnter += sensor_PlayerEnter;
            sensor.PlayerExit += sensor_PlayerExit;
	    }

        _showPadAction = new GameAction(gameObject, "use pad");
	}

    bool GuiVisible() {
        return _guiInstance != null;
    }

    void OnAction(ActionArgs a) {
        if (!GuiVisible()) {
            ShowGui();
        }
    }

    void sensor_PlayerExit(PlayerSensor senso, GameObject player) {
        ActionController.RemoveAction(_showPadAction);
    }

    void sensor_PlayerEnter(PlayerSensor senso, GameObject player) {
        if (locked) {
            ActionController.AddAction(_showPadAction);
        }
    }
	
	// Update is called once per frame
	void Update () {
	
	}

    protected override bool CheckInternal() {
        return locked;
    }

    protected override bool CheckInternal(object param) {
        return CheckInternal();
    }
}