using UnityEngine;
using UnityEngine.UI;

public class ExperimentChooser : MonoBehaviour
{
    public static ExperimentChooser Instance { get; private set; }

    public Button experiment1Button;
    public Button experiment2Button;
    public Button experiment3Button;

    [Header("All Experiments Objects")]
    public RunlinePlacer runlinePlacer;
    public TransitionSphere transitionSphere;
    public Transform spawnPoint;
    public Transform player;
    public GameObject runTrack;
    public GameObject amy;

    [Header("First Experiment")]
    public Stopwatch stopwatch;

    private void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
        }
        else if (Instance != this)
        {
            Destroy(gameObject);
        }
    }

    private void Start()
    {
        experiment1Button.interactable = true;
        experiment2Button.interactable = false;
        experiment3Button.interactable = false;

        experiment1Button.onClick.AddListener(StartExperiment1);
        experiment2Button.onClick.AddListener(StartExperiment2);
        experiment3Button.onClick.AddListener(StartExperiment3);
    }

    private void StartExperiment1()
    {
        player.position = spawnPoint.position + Vector3.up * 2f;
        transitionSphere.PlayAnimation();
        runTrack.SetActive(true);
        amy.SetActive(true);
        runlinePlacer.gameObject.SetActive(true);
        player.gameObject.GetComponent<PlayerMovement>().SetPlayerEarthSpeed();
        Lesson1Controller.Instance.SetForestSkybox();

        experiment1Button.interactable = false;
        if (Lesson1Controller.Instance.activeExperiment == 2) experiment2Button.interactable = true;
        if (Lesson1Controller.Instance.activeExperiment == 3)
        {
            experiment2Button.interactable = true;
            experiment3Button.interactable = true;
        }
        Lesson1Controller.Instance.activeExperiment = 1;
        stopwatch.isCounting = false;
        stopwatch.arrow.transform.localRotation = stopwatch.arrowStartRotation;
        runlinePlacer.RuntimePlace();
    }

    private void StartExperiment2()
    {
        player.position = spawnPoint.position + Vector3.up * 2f;
        transitionSphere.PlayAnimation();
        runTrack.SetActive(true);
        runlinePlacer.gameObject.SetActive(true);
        amy.SetActive(true);
        player.gameObject.GetComponent<PlayerMovement>().SetPlayerEarthSpeed();
        Lesson1Controller.Instance.SetForestSkybox();

        experiment1Button.interactable = true;
        experiment2Button.interactable = false;
        if (Lesson1Controller.Instance.activeExperiment == 3) experiment3Button.interactable = true;

        Lesson1Controller.Instance.activeExperiment = 2;
        stopwatch.isCounting = false;
        stopwatch.arrow.transform.localRotation = stopwatch.arrowStartRotation;
        runlinePlacer.RuntimePlace();
    }

    private void StartExperiment3()
    {
        player.position = spawnPoint.position + Vector3.up * 2f;
        transitionSphere.PlayAnimation();
        runTrack.SetActive(false);
        amy.SetActive(false);
        runlinePlacer.RuntimePlace();
        runlinePlacer.gameObject.SetActive(false);
        player.gameObject.GetComponent<PlayerMovement>().SetPlayerLunarSpeed();
        Lesson1Controller.Instance.SetLunarSkybox();

        experiment1Button.interactable = true;
        experiment2Button.interactable = true;
        experiment3Button.interactable = false;

        Lesson1Controller.Instance.activeExperiment = 3;
    }
}