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

public class LevelMapScene : MonoBehaviour
{
    [Header("━━━ UI ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━")]
    public TMP_Text infoText;
    public TMP_Text totalScoreText;
    public Image infoBackground;

    [Header("━━━ INFO HIDE ━━━━━━━━━━━━━━━━━━━━━━━━━")]
    public float infoHideDelay = 5f;

    [Header("━━━ AUDIO ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━")]
    public AudioSource bgMusic;
    public AudioSource clickSound;

    [Header("━━━ SCENES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━")]
    public Button backButton;
    public string backSceneName = "modsec 1";

    [Header("Her level ayrı sahneye gidiyorsa AÇIK bırak (GameScene_Level1, GameScene_Level2 ...)")]
    public bool usePerLevelScene = true;

    [Header("Ayrı sahne kullanılıyorsa bu ön ek + levelID kullanılır")]
    public string levelScenePrefix = "GameScene_Level";   // -> GameScene_Level1

    [Header("Tüm leveller TEK sahneye gidiyorsa burayı kullan (usePerLevelScene KAPALI iken)")]
    public string singleGameSceneName = "GameScene";

    [Header("━━━ PLANETS / LEVEL BUTTONS ━━━━━━━━━━")]
    public Button[] levelButtons;

    [Header("━━━ LEVEL LOCK SETTINGS ━━━━━━━━━━━━━━")]
    public bool useScoreLock = true;

    private int playerTotalScore;
    private Coroutine hideInfoCoroutine;

    private readonly int[] requiredScores = new int[20]
    {
        0, 1000, 2000, 3000, 4000,
        5000, 6000, 7000, 8000, 9000,
        10000, 11000, 12000, 13000, 14000,
        15000, 16000, 17000, 18000, 19000
    };

    void Start()
    {
        playerTotalScore = PlayerPrefs.GetInt("TotalScore", 0);

        if (totalScoreText != null)
            totalScoreText.text = "Your Total Score: " + playerTotalScore;

        if (infoText != null)
        {
            infoText.text = "";
            infoText.alpha = 0f;
        }

        if (infoBackground != null)
        {
            infoBackground.gameObject.SetActive(false);
            infoBackground.color = new Color(1f, 1f, 1f, 0.70f);
        }

        if (bgMusic != null)
        {
            bgMusic.loop = true;
            bgMusic.Play();
        }

        SetupLevelButtons();

        if (backButton != null)
        {
            backButton.onClick.RemoveAllListeners();
            backButton.onClick.AddListener(GoBack);
        }
    }

    void SetupLevelButtons()
    {
        if (levelButtons == null || levelButtons.Length == 0)
        {
            Debug.LogError("LevelMapScene: Level Buttons atanmadı.");
            return;
        }

        int buttonCount = Mathf.Min(levelButtons.Length, requiredScores.Length);

        for (int i = 0; i < buttonCount; i++)
        {
            int levelID = i + 1;

            if (levelButtons[i] == null)
            {
                Debug.LogWarning("LevelMapScene: Level button boş index: " + i);
                continue;
            }

            levelButtons[i].interactable = true;
            levelButtons[i].onClick.RemoveAllListeners();
            levelButtons[i].onClick.AddListener(() => OnLevelSelect(levelID));
        }
    }

    void OnLevelSelect(int levelID)
    {
        if (clickSound != null)
            clickSound.Play();

        if (levelID < 1 || levelID > requiredScores.Length)
        {
            Debug.LogError("Geçersiz levelID: " + levelID);
            return;
        }

        int neededScore = requiredScores[levelID - 1];

        // ❌ KİLİTLİ
        if (useScoreLock && playerTotalScore < neededScore)
        {
            ShowInfo(
                "LEVEL LOCKED\n\n" +
                "Level: " + levelID + "\n" +
                "Your Total Score: " + playerTotalScore + "\n" +
                "Required Score: " + neededScore,
                new Color32(255, 70, 70, 255));
            return;
        }

        // ✔ AÇIK → sahneyi belirle
        string sceneToLoad = usePerLevelScene
            ? (levelScenePrefix + levelID)   // GameScene_Level1
            : singleGameSceneName;           // GameScene

        // Sahne Build Settings'te var mı? Kontrol et
        if (!Application.CanStreamedLevelBeLoaded(sceneToLoad))
        {
            ShowInfo(
                "SAHNE BULUNAMADI\n\n" +
                "'" + sceneToLoad + "'\n" +
                "Build Settings'e ekli değil!",
                new Color32(255, 170, 50, 255));

            Debug.LogError("Sahne yüklenemiyor: '" + sceneToLoad +
                "'. File > Build Settings içine eklediğinden ve adının birebir aynı olduğundan emin ol.");
            return;
        }

        ShowInfo(
            "LEVEL OPENED\n\n" +
            "Level: " + levelID + "\n" +
            "Loading...",
            new Color32(70, 255, 100, 255));

        PlayerPrefs.SetInt("SelectedLevel", levelID);
        PlayerPrefs.SetInt("SelectedStoryLevel", levelID);
        PlayerPrefs.SetString("LastPlayedMod", "Mod1");
        PlayerPrefs.Save();

        StartCoroutine(LoadGameSceneDelay(sceneToLoad));
    }

    void ShowInfo(string message, Color color)
    {
        if (infoBackground != null)
            infoBackground.gameObject.SetActive(true);

        if (infoText != null)
        {
            infoText.alpha = 1f;
            infoText.color = color;
            infoText.text = message;
        }

        if (hideInfoCoroutine != null)
            StopCoroutine(hideInfoCoroutine);

        hideInfoCoroutine = StartCoroutine(HideInfoAfterDelay());
    }

    IEnumerator LoadGameSceneDelay(string sceneToLoad)
    {
        yield return new WaitForSeconds(0.35f);
        SceneManager.LoadScene(sceneToLoad);
    }

    IEnumerator HideInfoAfterDelay()
    {
        yield return new WaitForSeconds(infoHideDelay);

        if (infoText != null)
        {
            infoText.text = "";
            infoText.alpha = 0f;
        }

        if (infoBackground != null)
            infoBackground.gameObject.SetActive(false);
    }

    void GoBack()
    {
        if (clickSound != null)
            clickSound.Play();

        if (!string.IsNullOrWhiteSpace(backSceneName))
            SceneManager.LoadScene(backSceneName);
    }
}