using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System;

public class game : MonoBehaviour
{

    GameObject Danger1;
    GameObject Danger2;
    GameObject Danger3;
    public Text incomingThreats;

    public Queue<Threat> threats = new Queue<Threat>();

    public class Threat{
        public int position;
        float finalTime;

        public Threat(){
            position = UnityEngine.Random.Range(1,4);
            finalTime = Time.time + 0.75f;
        }

        public bool CountDown(){
            if(Time.time >= finalTime){
                return true;
            }
            else{
                return false;
            }
        }
    }
    void Start()
    {
        Danger1=GameObject.Find("Danger1");
        Danger2=GameObject.Find("Danger2");
        Danger3=GameObject.Find("Danger3");
        incomingThreats.text = "";
        Danger1.SetActive (false);
        Danger2.SetActive (false);
        Danger3.SetActive (false);
    }

    bool waitActive = false;
    IEnumerator Wait(float seconds){
        waitActive = true;
        yield return new WaitForSeconds (seconds);
        waitActive = false;
    }

    IEnumerator ReactivateWithDelay(float seconds, GameObject obj){
        obj.SetActive (true);
        yield return new WaitForSeconds(seconds);
        obj.SetActive (false);
    }


    void ThreatGenerator(){
            if(!waitActive){
                StartCoroutine(Wait(1.0f));
                Threat incomingThreat = new Threat();
                threats.Enqueue(incomingThreat);
                DangerNotification(incomingThreat.position);
            }
    }

    void DangerNotification(int pos){
        switch (pos)
      {
          case 1:
            ReactivateWithDelay(1.0f, Danger1);
            break;
          case 2:
            ReactivateWithDelay(1.0f, Danger2);
            break;
          case 3:
            ReactivateWithDelay(1.0f, Danger3);
            break;
        }
    }

    int Fight(){
        if (Input.GetKeyDown("left")){
            return 1;
        }
        else if (Input.GetKeyDown("up")){
            return 2;
        }
        else if (Input.GetKeyDown("right")){
            return 3;
        }
        else{
            return 0;
        }
    }

    void Update()
    {
        ThreatGenerator();
        if (threats.Count != 0){
        incomingThreats.text = threats.Peek().position.ToString();
        }
        else{
            incomingThreats.text = "";
        }
        if (Fight()==threats.Peek().position){
            threats.Dequeue();
        }
        else if(Fight()!=0){
            incomingThreats.text = "You loose";
        }
        if (threats.Count !=0){
            if (threats.Peek().CountDown() == true){
                incomingThreats.text = "You loose";
            }
        }
    }
}