using System.Collections;
using UnityEngine;
using UnityEngine.UI;
using TMPro;

public class PeekabooGameManager : MonoBehaviour
{
    public static PeekabooGameManager Instance;

    public Transform mole;
    public Transform[] behindPositions; // BehindTree, BehindBench, BehindDustbin
    public Transform[] frontPositions;  // FrontOfTree, FrontOfBench, FrontOfDustbin

    public float showTime = 1.5f;
    public float moveDuration = 0.3f;
    public float interval = 0.5f;
    public float gameDuration = 30f;

    public TextMeshProUGUI scoreText;
    public TextMeshProUGUI timerText;

    private int score = 0;
    private float timer;
    private bool gameRunning = false;
    private int currentIndex = -1;
    private Coroutine peekCoroutine;

    void Awake()
    {
        Instance = this;
    }

    void Start()
    {
        StartCoroutine(GameLoop());
    }

    IEnumerator GameLoop()
    {
        timer = gameDuration;
        score = 0;
        UpdateScoreText();
        gameRunning = true;

        while (timer > 0)
        {
            peekCoroutine = StartCoroutine(PeekRoutine());

            float roundTime = showTime + interval;
            timer -= roundTime;
            UpdateTimerText();

            yield return new WaitForSeconds(roundTime);
        }

        gameRunning = false;
        timerText.text = "Time: 0";
        // Optionally: Trigger game over screen
    }

    IEnumerator PeekRoutine()
    {
        currentIndex = Random.Range(0, behindPositions.Length);

        mole.position = behindPositions[currentIndex].position;
        mole.rotation = behindPositions[currentIndex].rotation;

        yield return MoveTo(mole, frontPositions[currentIndex].position, frontPositions[currentIndex].rotation, moveDuration);

        float t = 0f;
        while (t < showTime)
        {
            t += Time.deltaTime;
            yield return null;
        }

        yield return HideMole();
    }

    public void MoleClicked()
    {
        if (!gameRunning) return;

        score++;
        UpdateScoreText();

        if (peekCoroutine != null)
        {
            StopCoroutine(peekCoroutine);
            StartCoroutine(HideMole());
        }
    }

    IEnumerator HideMole()
    {
        if (currentIndex >= 0)
        {
            yield return MoveTo(mole, behindPositions[currentIndex].position, behindPositions[currentIndex].rotation, moveDuration);
        }
    }

    IEnumerator MoveTo(Transform obj, Vector3 targetPos, Quaternion targetRot, float duration)
    {
        Vector3 startPos = obj.position;
        Quaternion startRot = obj.rotation;
        float elapsed = 0f;

        while (elapsed < duration)
        {
            float t = elapsed / duration;
            obj.position = Vector3.Lerp(startPos, targetPos, t);
            obj.rotation = Quaternion.Lerp(startRot, targetRot, t);
            elapsed += Time.deltaTime;
            yield return null;
        }

        obj.position = targetPos;
        obj.rotation = targetRot;
    }

    void UpdateScoreText()
    {
        if (scoreText)
            scoreText.text = "Score: " + score;
    }

    void UpdateTimerText()
    {
        if (timerText)
            timerText.text = "Time: " + Mathf.CeilToInt(timer);
    }
}