using UnityEngine;
using TMPro;
using DG.Tweening;
using System.Collections.Generic;
using System.Collections;

public enum NarrationID
{
    Intro,
    NewEmail,
    ScanEmail,
    CorrectReportChoice,
    CorrectIgnoreChoice,
    WrongIgnoreChoice,
    Feedback,
    GameEnd
}

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

    [Header("Narration Assets")]
    public List<NarrationData> narrationDatabase;

    [Header("Subtitle Settings")]
    public TextMeshProUGUI subtitleText;
    public float charDelay = 0.03f;
    public float lineGroupDelay = 2.5f; // Fallback if no custom delay provided

    private AudioSource audioSource;
    private Tween typewriterTween;
    private Dictionary<NarrationID, NarrationData> narrationMap;

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

        Instance = this;

        audioSource = gameObject.AddComponent<AudioSource>();
        audioSource.playOnAwake = false;

        narrationMap = new Dictionary<NarrationID, NarrationData>();
        foreach (var data in narrationDatabase)
        {
            if (data != null && !narrationMap.ContainsKey(data.narrationID))
                narrationMap[data.narrationID] = data;
        }
    }

    public void PlayNarration(NarrationID id, System.Action onComplete = null)
    {
        InstructionManager.Instance.instructionBG.SetActive(true);
        SceneOutcomeManager.Instance.progressbarCanvasGroup.alpha = 0;

        if (!narrationMap.TryGetValue(id, out var narrationData))
        {
            Debug.LogWarning($"Narration not found for: {id}");
            return;
        }

        bool isArabic = LanguageManager.Instance.IsArabic;
        AudioClip clip = isArabic ? narrationData.arabicClip : narrationData.englishClip;

        if (clip == null)
        {
            Debug.LogWarning($"Missing audio clip for {id} in language: {(isArabic ? "Arabic" : "English")}");
            return;
        }

        if (audioSource.isPlaying)
            audioSource.Stop();

        audioSource.clip = clip;
        audioSource.Play();

        if (!string.IsNullOrEmpty(narrationData.localizationKey))
        {
            string rawSubtitle = LanguageManager.Instance.GetLocalizedText(narrationData.localizationKey);
            string subtitle = isArabic
                ? ArabicFixerHelper.FixPreservingTags(rawSubtitle)
                : rawSubtitle;

            subtitleText.font = LanguageManager.Instance.GetCurrentFont();
            subtitleText.fontSize = isArabic ? 38 : 50;

            subtitleText.overflowMode = isArabic ? TextOverflowModes.Page : TextOverflowModes.Overflow;
            subtitleText.isRightToLeftText = false;

            AppendSubtitle(subtitle, isArabic, narrationData);
        }
        Invoke(nameof(scoreBarActivator), clip.length);
        if (onComplete != null)
            StartCoroutine(InvokeAfterNarration(clip.length, onComplete));
    }
    void scoreBarActivator()
    {
        CancelInvoke(nameof(scoreBarActivator));
        SceneOutcomeManager.Instance.progressbarCanvasGroup.alpha = 1;
        InstructionManager.Instance.instructionBG.SetActive(false);
    }
    private void AppendSubtitle(string fullText, bool isArabic, NarrationData narrationData)
    {
        typewriterTween?.Kill();
        subtitleText.text = "";

        if (isArabic)
        {
            StartCoroutine(ShowArabicByPages(fullText, narrationData));
        }
        else
        {
            StartCoroutine(ShowLinesWithCustomDelay(fullText, narrationData));
        }
    }

    private IEnumerator ShowLinesWithCustomDelay(string fullText, NarrationData narrationData)
    {
        subtitleText.text = "";
        string[] lines = fullText.Split(new[] { '\n' }, System.StringSplitOptions.RemoveEmptyEntries);
        int length = lines.Length;
        for (int i = 0; i < length; i++)
        {
            subtitleText.text = lines[i];
            subtitleText.ForceMeshUpdate();

            float delay = (narrationData != null && i < narrationData.lineDelays.Count) ? narrationData.lineDelays[i] : lineGroupDelay;
            yield return new WaitForSeconds(delay);
        }
        //if (length > 1)
        //    SceneOutcomeManager.Instance.progressbarCanvasGroup.alpha = 1;

    }

    private IEnumerator ShowArabicByPages(string fullText, NarrationData narrationData)
    {
        subtitleText.text = fullText;
        subtitleText.ForceMeshUpdate();

        int totalPages = subtitleText.textInfo.pageCount;

        for (int i = 1; i <= totalPages; i++)
        {
            subtitleText.pageToDisplay = i;
            float delay = (narrationData != null && (i - 1) < narrationData.arabicLineDelays.Count) ? narrationData.arabicLineDelays[(i - 1)] : lineGroupDelay;
            Debug.Log("arabic delay is: " + delay);
            yield return new WaitForSeconds(delay);
        }
        //SceneOutcomeManager.Instance.progressbarCanvasGroup.alpha = 1;
    }

    private IEnumerator InvokeAfterNarration(float delay, System.Action callback)
    {
        yield return new WaitForSeconds(delay);
        callback?.Invoke();
    }

    public void StopNarration()
    {
        if (audioSource.isPlaying)
            audioSource.Stop();

        typewriterTween?.Kill();
        StopAllCoroutines();
    }

    public void ClearSubtitles()
    {
        typewriterTween?.Kill();
        subtitleText.text = "";
        StopAllCoroutines();
    }

    public bool IsPlaying => audioSource.isPlaying;
}

//using UnityEngine;
//using TMPro;
//using DG.Tweening;
//using System.Collections.Generic;
//using System.Collections;

//public enum NarrationID
//{
//    Intro,
//    NewEmail,
//    ScanEmail,
//    CorrectReportChoice,
//    CorrectIgnoreChoice,
//    WrongIgnoreChoice,
//    Feedback,
//    GameEnd
//}

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

//    [Header("Narration Assets")]
//    public List<NarrationData> narrationDatabase;

//    [Header("Subtitle Settings")]
//    public TextMeshProUGUI subtitleText;
//    public float charDelay = 0.03f;

//    private AudioSource audioSource;
//    private Tween typewriterTween;
//    private Dictionary<NarrationID, NarrationData> narrationMap;

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

//        Instance = this;
////        DontDestroyOnLoad(gameObject);

//        audioSource = gameObject.AddComponent<AudioSource>();
//        audioSource.playOnAwake = false;

//        narrationMap = new Dictionary<NarrationID, NarrationData>();
//        foreach (var data in narrationDatabase)
//        {
//            if (data != null && !narrationMap.ContainsKey(data.narrationID))
//                narrationMap[data.narrationID] = data;
//        }
//    }

//    public void PlayNarration(NarrationID id, System.Action onComplete = null)
//    {
//        if (!narrationMap.TryGetValue(id, out var narrationData))
//        {
//            Debug.LogWarning($"Narration not found for: {id}");
//            return;
//        }

//        bool isArabic = LanguageManager.Instance.IsArabic;
//        AudioClip clip = isArabic ? narrationData.arabicClip : narrationData.englishClip;

//        if (clip == null)
//        {
//            Debug.LogWarning($"Missing audio clip for {id} in language: {(isArabic ? "Arabic" : "English")}");
//            return;
//        }

//        if (audioSource.isPlaying)
//            audioSource.Stop();

//        audioSource.clip = clip;
//        audioSource.Play();

//        if (!string.IsNullOrEmpty(narrationData.localizationKey))
//        {
//            string rawSubtitle = LanguageManager.Instance.GetLocalizedText(narrationData.localizationKey);
//            string subtitle = isArabic
//                ? ArabicFixerHelper.FixPreservingTags(rawSubtitle)
//                : rawSubtitle;

//            // TMP settings per language
//            subtitleText.font = LanguageManager.Instance.GetCurrentFont();
//            subtitleText.fontSize = isArabic ? 39 : 50;
//           // subtitleText.alignment = isArabic ? TextAlignmentOptions.Right : TextAlignmentOptions.Left;
//            subtitleText.overflowMode = TextOverflowModes.Page;
//            subtitleText.isRightToLeftText = false; // MUST be false with ArabicFixer

//            AppendSubtitle(subtitle, isArabic);
//        }

//        if (onComplete != null)
//            StartCoroutine(InvokeAfterNarration(clip.length, onComplete));
//    }

//    private void AppendSubtitle(string fullText, bool isArabic)
//    {
//        typewriterTween?.Kill();
//        subtitleText.text = "";

//        if (isArabic)
//        {
//            StartCoroutine(ShowArabicByPages(fullText));
//            return;
//        }

//        int totalLength = fullText.Length;
//        int currentIndex = 0;

//        typewriterTween = DOTween.To(() => currentIndex, x =>
//        {
//            currentIndex = x;
//            subtitleText.text = fullText.Substring(0, currentIndex);
//            subtitleText.ForceMeshUpdate();
//            subtitleText.pageToDisplay = subtitleText.textInfo.pageCount;
//        }, totalLength, totalLength * charDelay).SetEase(Ease.Linear);
//    }

//    private IEnumerator ShowArabicByPages(string fullText)
//    {
//        subtitleText.text = fullText;
//        subtitleText.ForceMeshUpdate();

//        int totalPages = subtitleText.textInfo.pageCount;

//        for (int i = 1; i <= totalPages; i++)
//        {
//            subtitleText.pageToDisplay = i;
//            yield return new WaitForSeconds(5f); // Adjust delay per page
//        }
//    }

//    private IEnumerator InvokeAfterNarration(float delay, System.Action callback)
//    {
//        yield return new WaitForSeconds(delay);
//        callback?.Invoke();
//    }

//    public void StopNarration()
//    {
//        if (audioSource.isPlaying)
//            audioSource.Stop();

//        typewriterTween?.Kill();
//    }

//    public void ClearSubtitles()
//    {
//        typewriterTween?.Kill();
//        subtitleText.text = "";
//    }

//    public bool IsPlaying => audioSource.isPlaying;
//}