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

public class Mod12_TrueFalseGame : MonoBehaviour
{
    [Header("TXT FILE (TR,EN,ES,DE,FR,PT)")]
    public TextAsset analogyFile; // TXT dosyasını sürükle-bırak

    [System.Serializable]
    public class WordPair
    {
        public string tr, en, es, de, fr, pt;

        public WordPair(string tr, string en, string es, string de, string fr, string pt)
        {
            this.tr = tr;
            this.en = en;
            this.es = es;
            this.de = de;
            this.fr = fr;
            this.pt = pt;
        }

        public string Get(string lang)
        {
            return lang switch
            {
                "tr" => tr,
                "en" => en,
                "es" => es,
                "de" => de,
                "fr" => fr,
                "pt" => pt,
                _ => en
            };
        }
    }

    // ================= UI =================
    public TMP_Text wordText;
    public TMP_Text feedbackText;

    public TMP_Text scoreText;
    public TMP_Text comboText;
    public TMP_Text timerText;

    public Button trueButton;
    public Button falseButton;
    public Button passButton;

    [Header("━━━ BACK BUTTON ━━━━━━━━━━━━━━━━━━━━━━━━")]
    public Button backButton;
    public string backSceneName = "ModSec 12";

    [Header("COLORS")]
    public Color normalColor = new Color32(255, 255, 255, 40);
    public Color selectedColor = new Color32(60, 120, 220, 255);
    public Color correctColor = new Color32(0, 200, 0, 255);
    public Color wrongColor = new Color32(200, 0, 0, 255);

    [Header("━━━ FEEDBACK TEXT SETTINGS ━━━━━━━━━━━━━")]
    public bool feedbackOnTop = true;
    public float feedbackTopY = 400f;
    public float feedbackFontSize = 72f;

    [Header("━━━ ANIMATION SETTINGS ━━━━━━━━━━━━━━━━━")]
    [Range(0.80f, 1f)] public float selectedScale = 0.94f;
    public float selectAnimTime = 0.10f;

    // ================= Logic =================
    private List<WordPair> words = new List<WordPair>();
    private bool correctPair;
    private bool locked = false;

    private float timeLeft = 60f;

    private int score = 0;
    private int combo = 0;
    private int correctCount = 0;
    private int wrongCount = 0;

    string qLang;
    string aLang;
    string modKey = "Mod12";

    readonly Color timerNormalColor = Color.white;
    readonly Color timerWarnColor = new Color32(255, 80, 80, 255);

    Vector3 trueOriginalScale = Vector3.one;
    Vector3 falseOriginalScale = Vector3.one;
    Vector3 trueOriginalPos;
    Vector3 falseOriginalPos;

    Coroutine trueScaleCo;
    Coroutine falseScaleCo;
    Coroutine feedbackCo;
    Coroutine wordFadeCo;

    // ============================================================
    void Start()
    {
        qLang = PlayerPrefs.GetString("QuestionLangCode", "en");
        aLang = PlayerPrefs.GetString("AnswerLangCode", "tr");

        CacheButtonData();
        PrepareFeedbackText();

        LoadTXT();

        trueButton.onClick.AddListener(() => Answer(true));
        falseButton.onClick.AddListener(() => Answer(false));
        passButton.onClick.AddListener(Pass);

        if (backButton != null)
        {
            backButton.onClick.RemoveAllListeners();
            backButton.onClick.AddListener(() => SceneManager.LoadScene(backSceneName));
        }

        UpdateScore();
        UpdateCombo();
        NextQuestion();
    }

    // ============================================================
    void Update()
    {
        if (!locked)
        {
            timeLeft -= Time.deltaTime;
            if (timeLeft <= 0) GameOver();
        }

        UpdateTimerUI();
    }

    // ============================================================
    void CacheButtonData()
    {
        if (trueButton != null)
        {
            trueOriginalScale = trueButton.transform.localScale;
            trueOriginalPos = trueButton.transform.localPosition;
            trueButton.transition = Selectable.Transition.None;
        }

        if (falseButton != null)
        {
            falseOriginalScale = falseButton.transform.localScale;
            falseOriginalPos = falseButton.transform.localPosition;
            falseButton.transition = Selectable.Transition.None;
        }
    }

    void PrepareFeedbackText()
    {
        if (feedbackText == null) return;

        if (feedbackOnTop)
        {
            Vector3 pos = feedbackText.transform.localPosition;
            pos.y = feedbackTopY;
            feedbackText.transform.localPosition = pos;
        }

        feedbackText.alignment = TextAlignmentOptions.Center;
        feedbackText.fontSize = Mathf.Max(feedbackText.fontSize, feedbackFontSize);
        feedbackText.text = "";

        Color c = feedbackText.color;
        c.a = 1f;
        feedbackText.color = c;
    }

    void UpdateTimerUI()
    {
        if (timerText == null) return;

        timerText.text = Mathf.Ceil(timeLeft).ToString();

        if (timeLeft <= 10f)
        {
            timerText.color = FullAlpha(Color.Lerp(timerWarnColor, Color.white, Mathf.PingPong(Time.time * 3f, 1f)));
            timerText.transform.localScale = Vector3.one * (1f + Mathf.Sin(Time.time * 10f) * 0.05f);
        }
        else
        {
            timerText.color = FullAlpha(timerNormalColor);
            timerText.transform.localScale = Vector3.one;
        }
    }

    // ============================================================
    void LoadTXT()
    {
        words.Clear();

        if (analogyFile == null)
        {
            wordText.text = "TXT NOT FOUND!";
            return;
        }

        string raw = analogyFile.text.Replace("\r", "");
        string[] lines = raw.Split('\n');

        foreach (string line in lines)
        {
            if (string.IsNullOrWhiteSpace(line)) continue;

            string[] p = line.Split(',');

            if (p.Length != 6)
            {
                Debug.LogError("HATALI SATIR → Format TR,EN,ES,DE,FR,PT olmalı: " + line);
                continue;
            }

            words.Add(new WordPair(
                p[0].Trim(), p[1].Trim(), p[2].Trim(),
                p[3].Trim(), p[4].Trim(), p[5].Trim()
            ));
        }

        if (words.Count < 2)
        {
            wordText.text = "YETERSİZ KELİME!";
        }
    }

    // ============================================================
    void NextQuestion()
    {
        if (words.Count < 2) return;

        locked = false;

        if (feedbackText != null)
            feedbackText.text = "";

        ResetColors();

        WordPair w1 = words[Random.Range(0, words.Count)];
        WordPair w2 = w1;

        // %50 doğru / %50 yanlış
        correctPair = (Random.value > 0.5f);

        if (!correctPair)
        {
            WordPair temp;
            do temp = words[Random.Range(0, words.Count)];
            while (temp == w1);

            w2 = temp;
        }

        // TEK TEXT EKLEME
        wordText.text = $"{w1.Get(qLang)} = {w2.Get(aLang)}";

        if (wordFadeCo != null) StopCoroutine(wordFadeCo);
        wordFadeCo = StartCoroutine(FadeInText(wordText));
    }

    // ============================================================
    void Answer(bool pickedTrue)
    {
        if (locked) return;
        locked = true;

        bool ok =
            (pickedTrue && correctPair) ||
            (!pickedTrue && !correctPair);

        if (pickedTrue)
        {
            trueButton.image.color = FullAlpha(selectedColor);
            StartScaleAnim(trueButton, ref trueScaleCo, trueOriginalScale * selectedScale);
        }
        else
        {
            falseButton.image.color = FullAlpha(selectedColor);
            StartScaleAnim(falseButton, ref falseScaleCo, falseOriginalScale * selectedScale);
        }

        if (ok) Correct(pickedTrue);
        else Wrong(pickedTrue);

        Invoke(nameof(NextQuestion), 1f);
    }

    // ============================================================
    void Correct(bool pickedTrue)
    {
        correctCount++;
        combo++;
        score += 50 + combo * 10;
        timeLeft += 2f;

        SetFeedback(combo >= 3 ? $"{Local("correct")}   {combo}x COMBO!" : Local("correct"), correctColor);

        Button btn = pickedTrue ? trueButton : falseButton;
        Vector3 normalScale = pickedTrue ? trueOriginalScale : falseOriginalScale;

        btn.image.color = FullAlpha(correctColor);
        StartCoroutine(CorrectPulse(btn, normalScale));

        if (comboText != null) StartCoroutine(ComboAnim(comboText));
        if (scoreText != null) StartCoroutine(ScorePopAnim(scoreText));

        UpdateScore();
        UpdateCombo();
    }

    void Wrong(bool pickedTrue)
    {
        wrongCount++;
        combo = 0;
        score -= 20;
        if (score < 0) score = 0;

        SetFeedback(Local("wrong"), wrongColor);

        Button btn = pickedTrue ? trueButton : falseButton;
        Vector3 originalPos = pickedTrue ? trueOriginalPos : falseOriginalPos;

        btn.image.color = FullAlpha(wrongColor);
        StartCoroutine(ShakeButton(btn, originalPos));

        UpdateScore();
        UpdateCombo();
    }

    // ============================================================
    void Pass()
    {
        if (locked) return;
        combo = 0;
        UpdateCombo();
        NextQuestion();
    }

    void ResetColors()
    {
        if (trueScaleCo != null) { StopCoroutine(trueScaleCo); trueScaleCo = null; }
        if (falseScaleCo != null) { StopCoroutine(falseScaleCo); falseScaleCo = null; }

        trueButton.image.color = FullAlpha(normalColor);
        falseButton.image.color = FullAlpha(normalColor);

        trueButton.transform.localScale = trueOriginalScale;
        falseButton.transform.localScale = falseOriginalScale;

        trueButton.transform.localPosition = trueOriginalPos;
        falseButton.transform.localPosition = falseOriginalPos;
    }

    void UpdateScore() => scoreText.text = score.ToString();
    void UpdateCombo() => comboText.text = combo + "x";

    // ============================================================
    void GameOver()
    {
        // Son elde edilen skor
        int lastScore = score;

        // 🔥 Mod Select / Leaderboard ekranına direkt bağlanacak basit key
        PlayerPrefs.SetInt("Mod12Skor", lastScore);

        // Mevcut max skoru oku (yoksa 0)
        int maxScore = PlayerPrefs.GetInt(modKey + "_MaxScore", 0);

        // Eğer yeni skor daha yüksekse güncelle
        if (lastScore > maxScore)
        {
            PlayerPrefs.SetInt(modKey + "_MaxScore", lastScore);
        }

        // Temel kayıtlar
        PlayerPrefs.SetInt(modKey + "_Score", lastScore);
        PlayerPrefs.SetInt(modKey + "_Correct", correctCount);
        PlayerPrefs.SetInt(modKey + "_Wrong", wrongCount);

        PlayerPrefs.Save();

        // Resume sahnesine git
        SceneManager.LoadScene("Mod12Resume");
    }

    // ============================================================
    string Local(string key)
    {
        int L = PlayerPrefs.GetInt("AppLanguage", 1);

        if (key == "correct")
            return new[] { "Doğru!", "Correct!", "¡Correcto!", "Richtig!", "Correct!", "Correto!" }[L];

        if (key == "wrong")
            return new[] { "Yanlış!", "Wrong!", "¡Incorrecto!", "Falsch!", "Faux!", "Errado!" }[L];

        return key;
    }

    // ================== ANIMATION HELPERS ==================

    void SetFeedback(string msg, Color c)
    {
        if (feedbackText == null) return;

        feedbackText.text = msg;
        feedbackText.color = FullAlpha(c);

        if (feedbackOnTop)
        {
            Vector3 pos = feedbackText.transform.localPosition;
            pos.y = feedbackTopY;
            feedbackText.transform.localPosition = pos;
        }

        if (feedbackCo != null) StopCoroutine(feedbackCo);
        feedbackCo = StartCoroutine(FeedbackAnim(feedbackText));
    }

    void StartScaleAnim(Button btn, ref Coroutine co, Vector3 targetScale)
    {
        if (btn == null) return;

        if (co != null) StopCoroutine(co);
        co = StartCoroutine(ScaleButton(btn, targetScale));
    }

    IEnumerator ScaleButton(Button btn, Vector3 targetScale)
    {
        if (btn == null) yield break;

        Vector3 startScale = btn.transform.localScale;
        float t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / Mathf.Max(0.01f, selectAnimTime);
            btn.transform.localScale = Vector3.Lerp(startScale, targetScale, EaseOutQuad(t));
            yield return null;
        }

        btn.transform.localScale = targetScale;
    }

    IEnumerator CorrectPulse(Button btn, Vector3 normal)
    {
        if (btn == null) yield break;

        Vector3 big = normal * 1.12f;

        float t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.12f;
            btn.transform.localScale = Vector3.Lerp(normal, big, EaseOutQuad(t));
            yield return null;
        }

        t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.12f;
            btn.transform.localScale = Vector3.Lerp(big, normal, EaseOutQuad(t));
            yield return null;
        }

        btn.transform.localScale = normal;
    }

    IEnumerator ShakeButton(Button btn, Vector3 origin)
    {
        if (btn == null) yield break;

        float duration = 0.35f;
        float magnitude = 12f;
        float elapsed = 0f;

        while (elapsed < duration)
        {
            float power = 1f - elapsed / duration;
            float x = Random.Range(-1f, 1f) * magnitude * power;

            btn.transform.localPosition = origin + new Vector3(x, 0f, 0f);

            elapsed += Time.deltaTime;
            yield return null;
        }

        btn.transform.localPosition = origin;
    }

    IEnumerator FeedbackAnim(TMP_Text txt)
    {
        if (txt == null) yield break;

        Vector3 originalScale = Vector3.one;
        Vector3 bigScale = originalScale * 1.18f;

        Color c = FullAlpha(txt.color);
        c.a = 0f;
        txt.color = c;

        Vector3 originalPos = txt.transform.localPosition;
        Vector3 startPos = originalPos + Vector3.down * 18f;

        txt.transform.localPosition = startPos;

        float t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.16f;

            float ease = EaseOutBack(t);

            txt.transform.localScale = Vector3.Lerp(originalScale, bigScale, ease);
            txt.transform.localPosition = Vector3.Lerp(startPos, originalPos, ease);

            c.a = Mathf.Clamp01(t);
            txt.color = c;

            yield return null;
        }

        c.a = 1f;
        txt.color = c;
        txt.transform.localPosition = originalPos;

        t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.12f;
            txt.transform.localScale = Vector3.Lerp(bigScale, originalScale, EaseOutQuad(t));
            yield return null;
        }

        txt.transform.localScale = originalScale;
        feedbackCo = null;
    }

    IEnumerator ComboAnim(TMP_Text txt)
    {
        if (txt == null) yield break;

        Vector3 original = Vector3.one;
        Vector3 big = original * 1.22f;

        Color baseColor = FullAlpha(txt.color);
        Color highlight = new Color32(255, 220, 50, 255);

        float t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.12f;

            txt.transform.localScale = Vector3.Lerp(original, big, EaseOutBack(t));
            txt.color = FullAlpha(Color.Lerp(baseColor, highlight, t));

            yield return null;
        }

        t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.14f;

            txt.transform.localScale = Vector3.Lerp(big, original, EaseOutQuad(t));
            txt.color = FullAlpha(Color.Lerp(highlight, baseColor, t));

            yield return null;
        }

        txt.transform.localScale = original;
        txt.color = baseColor;
    }

    IEnumerator ScorePopAnim(TMP_Text txt)
    {
        if (txt == null) yield break;

        Vector3 original = Vector3.one;
        Vector3 big = original * 1.18f;

        float t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.10f;
            txt.transform.localScale = Vector3.Lerp(original, big, EaseOutQuad(t));
            yield return null;
        }

        t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.12f;
            txt.transform.localScale = Vector3.Lerp(big, original, EaseOutQuad(t));
            yield return null;
        }

        txt.transform.localScale = original;
    }

    IEnumerator FadeInText(TMP_Text txt)
    {
        if (txt == null) yield break;

        Color c = FullAlpha(txt.color);
        c.a = 0f;
        txt.color = c;

        float t = 0f;

        while (t < 1f)
        {
            t += Time.deltaTime / 0.18f;
            c.a = EaseOutQuad(t);
            txt.color = c;
            yield return null;
        }

        c.a = 1f;
        txt.color = c;
        wordFadeCo = null;
    }

    Color FullAlpha(Color c)
    {
        c.a = 1f;
        return c;
    }

    float EaseOutBack(float t)
    {
        t = Mathf.Clamp01(t);

        float c1 = 1.70158f;
        float c3 = c1 + 1f;

        return 1f + c3 * Mathf.Pow(t - 1f, 3f) + c1 * Mathf.Pow(t - 1f, 2f);
    }

    float EaseOutQuad(float t)
    {
        t = Mathf.Clamp01(t);
        return 1f - (1f - t) * (1f - t);
    }
}