using UnityEngine;
using UnityEngine.UI; // Needed for UI
using System.Collections;
using TMPro; // Optional, if you want "Sweet Dreams" text

public class WinZone : MonoBehaviour
{
    [Header("UI Settings")]
    public GameObject blackScreenPanel;
    public TextMeshProUGUI winText; // Assign a TMP text that says "Sweet Dreams"
    public float fadeDuration = 3f;

    [Header("Audio")]
    public AudioSource playerAudioSource; // To stop footsteps/breathing
    public AudioClip winSound; // Gentle lullaby or peaceful sound

    private bool hasWon = false;

    void OnTriggerEnter(Collider other)
    {
        if (other.CompareTag("Player") && !hasWon)
        {
            // Only win if lights are OFF (optional check)
            if (GameManager.Instance != null && !GameManager.Instance.AreAnyLightsOn())
            {
                StartCoroutine(WinSequence(other.gameObject));
            }
        }
    }

    IEnumerator WinSequence(GameObject player)
    {
        hasWon = true;
        Debug.Log("Player reached the top! Winning...");

        // 1. Disable Player Controls immediately
        PlayerController pc = player.GetComponent<PlayerController>();
        if (pc != null) pc.enabled = false;

        // 2. Disable the Staircase Curse so they don't die while fading
        StaircaseCurse curse = FindObjectOfType<StaircaseCurse>();
        if (curse != null) curse.enabled = false;

        // 3. Play Win Sound
        if (playerAudioSource != null && winSound != null)
            playerAudioSource.PlayOneShot(winSound);

        // 4. Fade to Black
        if (blackScreenPanel != null)
        {
            blackScreenPanel.SetActive(true);
            CanvasGroup cg = blackScreenPanel.GetComponent<CanvasGroup>();

            // If no CanvasGroup exists, add one
            if (cg == null) cg = blackScreenPanel.AddComponent<CanvasGroup>();

            float timer = 0f;
            while (timer < fadeDuration)
            {
                timer += Time.deltaTime;
                cg.alpha = timer / fadeDuration; // Fade from 0 to 1
                yield return null;
            }
            cg.alpha = 1f;
        }

        // 5. Show Text
        if (winText != null) winText.gameObject.SetActive(true);

        // 6. Quit Game (or wait and load menu)
        yield return new WaitForSeconds(3f);
        Debug.Log("Quitting Application...");
        Application.Quit();
    }
}