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

public class BelajarManager : MonoBehaviour
{
    // ... isi script kamu di bawahnya tetap biarkan saja
    [Header("Data Utama")]
    public List<DataSayur> listSayur; 

    [Header("Panel Switcher")]
    public GameObject panelBaris;
    public GameObject panelKolom;
    public GameObject panelMateri;

    [Header("Tombol Switcher UI (Image)")]
    public Image imgBtnBaris;   
    public Image imgBtnKolom;   
    public Image imgBtnMateri;  

    [Header("Aset Gambar Tombol (Sprite)")]
    public Sprite btnBarisColor, btnBarisBW;
    public Sprite btnKolomColor, btnKolomBW;
    public Sprite btnMateriColor, btnMateriBW;

    [Header("Animasi Scale Tombol (Tab)")]
    public float scaleAktif = 1.15f; 
    public float scaleMati = 1.0f;  
    public float speedAnimasi = 10f; 
    private Vector3 targetScaleBaris, targetScaleKolom, targetScaleMateri;

[Header("UI Scene Baris")]
    public TextMeshProUGUI txtNama;
    public Image imgSayur;
    public TextMeshProUGUI txtInpo;         // Slot untuk teks info kanan atas
    public TextMeshProUGUI txtBubble;       // Slot untuk teks catatan di dalam bubble
    public Image imgBubbleMaskot;           // Slot untuk UI Image kepala maskot
    public GameObject panelBubbleParent;    // Slot untuk objek parent 'Bubble' (biar bisa di-pop up)
    private int indexSekarang = 0;

    [Header("UI Scene Kolom (Galeri)")]
    public KartuSayur[] slotKartu; 
    private int halamanSekarang = 0;

    [Header("UI Scene Materi (Detail)")]
    public TextMeshProUGUI txtNamaMateri;
    public Image imgSayurMateri;
    public TextMeshProUGUI txtRasaMateri;
    public TextMeshProUGUI txtManfaatMateri;
    private int indexMateri = 0; 

    [Header("Pengaturan Audio VO")]
    public AudioSource sourceVO;

    [Header("Pengaturan Efek Juiciness")]
    public float floatingSpeed = 2f;    
    public float floatingAmount = 15f; 
    private Vector3 posisiAwalSayurBaris;
    private Vector3 posisiAwalSayurMateri;

    [Header("Pengaturan Auto Next")]
    public Image imgBtnAuto; 
    public Sprite btnAutoOn, btnAutoOff; 
    public float jedaAuto = 3f; 
    private bool isAutoActive = false;
    private Coroutine autoCoroutine;

    [Header("Pengaturan Efek Shake")]
    public float durasiShake = 0.2f; 
    public float kekuatanShake = 5f; 

    [Header("Pengaturan Ducking Musik")]
    public AudioSource sourceBGM; 
    public float volumeNormal = 0.5f; 
    public float volumeDucking = 0.1f;

    // --- BATAS VARIABEL ATAS ---
    void Start() {
        targetScaleBaris = targetScaleKolom = targetScaleMateri = Vector3.one * scaleMati;
        
        // Simpan posisi awal untuk efek melayang
        posisiAwalSayurBaris = imgSayur.transform.localPosition;
        posisiAwalSayurMateri = imgSayurMateri.transform.localPosition;

        BukaMenuBaris(); 
    }

    void Update() {
        // Animasi Scale Tab Menu
        imgBtnBaris.transform.localScale = Vector3.Lerp(imgBtnBaris.transform.localScale, targetScaleBaris, Time.deltaTime * speedAnimasi);
        imgBtnKolom.transform.localScale = Vector3.Lerp(imgBtnKolom.transform.localScale, targetScaleKolom, Time.deltaTime * speedAnimasi);
        imgBtnMateri.transform.localScale = Vector3.Lerp(imgBtnMateri.transform.localScale, targetScaleMateri, Time.deltaTime * speedAnimasi);

        // --- EFEK MELAYANG (FLOATING) ---
        float sinWave = Mathf.Sin(Time.time * floatingSpeed) * floatingAmount;
        
        if(panelBaris.activeSelf)
            imgSayur.transform.localPosition = posisiAwalSayurBaris + new Vector3(0, sinWave, 0);
        
        if(panelMateri.activeSelf)
            imgSayurMateri.transform.localPosition = posisiAwalSayurMateri + new Vector3(0, sinWave, 0);
    }

    // --- FUNGSI SWITCHER PANEL ---
    public void BukaMenuBaris() {
        panelBaris.SetActive(true);
        panelKolom.SetActive(false);
        panelMateri.SetActive(false);
        
        imgBtnBaris.sprite = btnBarisColor;
        imgBtnKolom.sprite = btnKolomBW;
        imgBtnMateri.sprite = btnMateriBW;

        imgBtnBaris.transform.SetAsLastSibling(); 

        targetScaleBaris = Vector3.one * scaleAktif;
        targetScaleKolom = Vector3.one * scaleMati;
        targetScaleMateri = Vector3.one * scaleMati;

        UpdateTampilan();
    }

    public void BukaMenuKolom() {
        panelBaris.SetActive(false);
        panelKolom.SetActive(true);
        panelMateri.SetActive(false);

        imgBtnBaris.sprite = btnBarisBW;
        imgBtnKolom.sprite = btnKolomColor;
        imgBtnMateri.sprite = btnMateriBW;

        imgBtnKolom.transform.SetAsLastSibling(); 

        targetScaleBaris = Vector3.one * scaleMati;
        targetScaleKolom = Vector3.one * scaleAktif;
        targetScaleMateri = Vector3.one * scaleMati;

        UpdateTampilanKolom();
    }

    public void BukaMenuMateri() {
        panelBaris.SetActive(false);
        panelKolom.SetActive(false);
        panelMateri.SetActive(true);

        imgBtnBaris.sprite = btnBarisBW;
        imgBtnKolom.sprite = btnKolomBW;
        imgBtnMateri.sprite = btnMateriColor;

        imgBtnMateri.transform.SetAsLastSibling(); 

        targetScaleBaris = Vector3.one * scaleMati;
        targetScaleKolom = Vector3.one * scaleMati;
        targetScaleMateri = Vector3.one * scaleAktif;
    }

    // --- LOGIKA SCENE BARIS ---
    public void TombolNext() {
        indexSekarang = (indexSekarang + 1) % listSayur.Count;
        UpdateTampilan();
    }

    public void TombolPrev() {
        indexSekarang = (indexSekarang - 1 + listSayur.Count) % listSayur.Count;
        UpdateTampilan();
    }

void UpdateTampilan() {
        if(listSayur.Count > 0) {
            DataSayur sayurAktif = listSayur[indexSekarang];

            // Setup data standar
            txtNama.text = sayurAktif.namaSayur;
            imgSayur.sprite = sayurAktif.gambarSayurVisual;
            
            // --- AKTIFKAN & ISI DATA INFO ---
            txtInpo.text = sayurAktif.infoStatusKonsumsi;

            // --- LOGIKA PENGECEKAN BUBBLE CHAT ---
            if (string.IsNullOrEmpty(sayurAktif.teksBubbleCatatan)) {
                // Sembunyikan bubble secara utuh jika datanya dikosongkan
                panelBubbleParent.SetActive(false); 
            } else {
                panelBubbleParent.SetActive(true);
                txtBubble.text = sayurAktif.teksBubbleCatatan;
                
                // Ganti gambar ekspresi maskot jika disiapkan di asset
                if(sayurAktif.spriteEkspresiMaskot != null) {
                    imgBubbleMaskot.sprite = sayurAktif.spriteEkspresiMaskot;
                }

                // Jalankan Efek Animasi Pop Up Khusus Bubble
                StopCoroutine("EfekPopUpBubble");
                StartCoroutine(EfekPopUpBubble());
            }
            
            // Putar VO suara
            PutarSuara(sayurAktif); 
            
            // Animasi Pop Sayur Utama
            StopCoroutine("EfekPopSayur");
            StartCoroutine(EfekPopSayur(imgSayur));
        }
    }

    // --- LOGIKA SCENE KOLOM (PAGING 5 KARTU) ---
    public void TombolNextHalaman() {
        // Hitung total halaman yang dibutuhkan
        // Misal: 12 sayur / 5 = 2.4, dibulatkan ke atas jadi 3 halaman
        int totalHalaman = Mathf.CeilToInt((float)listSayur.Count / 5);

        halamanSekarang++;
        
        // JIKA sudah melewati halaman terakhir, BALIK ke halaman pertama (0)
        if (halamanSekarang >= totalHalaman) {
            halamanSekarang = 0;
        }
        
        UpdateTampilanKolom();
    }

    public void TombolPrevHalaman() {
        int totalHalaman = Mathf.CeilToInt((float)listSayur.Count / 5);

        halamanSekarang--;
        
        // JIKA sudah mundur sebelum halaman pertama, LOMPAT ke halaman terakhir
        if (halamanSekarang < 0) {
            halamanSekarang = totalHalaman - 1;
        }
        
        UpdateTampilanKolom();
    }

    void UpdateTampilanKolom() {
        int indexMulai = halamanSekarang * 5;
        
        for (int i = 0; i < slotKartu.Length; i++) {
            int indexSayurData = indexMulai + i;

            if (indexSayurData < listSayur.Count) {
                // Jika data ada, aktifkan kartu dan isi datanya
                slotKartu[i].gameObject.SetActive(true);
                slotKartu[i].Setup(listSayur[indexSayurData]);
            } else {
                // Jika data habis di halaman tersebut, sembunyikan kartu sisanya
                slotKartu[i].gameObject.SetActive(false);
            }
        }
    }

    public void AmbilDataDariKartu(DataSayur dataDiterima) {
        indexMateri = listSayur.IndexOf(dataDiterima);
        
        // Buka panelnya dulu
        BukaMenuMateri(); 
        
        // Kasih jeda dikit biar panelnya bener-bener "bangun" sebelum keluar suara
        StartCoroutine(DelaySuaraMateri());
    }

    IEnumerator DelaySuaraMateri() {
        yield return new WaitForSeconds(0.05f); // Jeda sangat singkat
        UpdateTampilanMateri();
    }

    void UpdateTampilanMateri() {
        if (listSayur.Count > 0) {
            DataSayur s = listSayur[indexMateri];
            txtNamaMateri.text = s.namaSayur;
            imgSayurMateri.sprite = s.gambarSayurVisual;
            txtRasaMateri.text = s.rasaSayur;
            txtManfaatMateri.text = s.manfaatSayur;

            // Pastikan ini ada di sini!
            PutarSuara(s); 

            StopCoroutine("EfekPopSayur");
            StartCoroutine(EfekPopSayur(imgSayurMateri));
        }
    }

    public void NextMateri() {
        indexMateri = (indexMateri + 1) % listSayur.Count;
        UpdateTampilanMateri();
    }

    public void PrevMateri() {
        indexMateri = (indexMateri - 1 + listSayur.Count) % listSayur.Count;
        UpdateTampilanMateri();
    }

    // --- COROUTINE ANIMASI POP ---
    IEnumerator EfekPopSayur(Image targetImage) {
        targetImage.transform.localScale = Vector3.zero;
        float timer = 0;
        float durasi = 0.3f;

        while (timer < durasi) {
            timer += Time.deltaTime;
            float progress = timer / durasi;
            // Rumus bounce sederhana
            float curve = Mathf.Sin(progress * Mathf.PI * 0.8f) * 1.15f; 
            targetImage.transform.localScale = new Vector3(curve, curve, curve);
            yield return null;
        }
        targetImage.transform.localScale = Vector3.one;
    }

    public void KlikTombolAuto() {
        isAutoActive = !isAutoActive; // Switch ON/OFF

        if (isAutoActive) {
            imgBtnAuto.sprite = btnAutoOn;
            // Mulai hitung mundur otomatis
            autoCoroutine = StartCoroutine(ProsesAutoNext());
        } else {
            imgBtnAuto.sprite = btnAutoOff;
            // Hentikan hitung mundur
            if (autoCoroutine != null) StopCoroutine(autoCoroutine);
        }
    }

    IEnumerator ProsesAutoNext() {
        while (isAutoActive) {
            yield return new WaitForSeconds(jedaAuto);

            // Cek panel mana yang lagi aktif, lalu panggil fungsi Next-nya
            if (panelBaris.activeSelf) {
                TombolNext();
            } 
            else if (panelKolom.activeSelf) {
                TombolNextHalaman();
            } 
            else if (panelMateri.activeSelf) {
                NextMateri();
            }
        }
    }

    void PutarSuara(DataSayur data) {
        // 1. Cek apakah datanya ada dan punya suara
        if (data == null || data.suaraNamaSayur == null) return;

        // 2. Hentikan suara lama dan mainkan yang baru
        sourceVO.Stop();
        sourceVO.clip = data.suaraNamaSayur;
        sourceVO.Play();

        // 3. Efek Ducking Musik (BGM mengecil)
        // Kita pastikan sourceBGM tidak kosong sebelum dijalankan
        if (sourceBGM != null) {
            StopCoroutine("ProsesDucking");
            StartCoroutine(ProsesDucking(volumeDucking));

            // 4. Kita buat coroutine baru untuk mengembalikan volume musik 
            // setelah suara selesai (lebih akurat dari Invoke)
            StopCoroutine("TungguSuaraSelesai");
            StartCoroutine(TungguSuaraSelesai(sourceVO.clip.length));
        }
    }

    // --- FUNGSI FEEDBACK & SHAKE ---

    public void KlikGambarSayur() {
        if (panelBaris.activeSelf) {
            PutarSuara(listSayur[indexSekarang]);
            PlayShake(imgSayur.GetComponent<RectTransform>());
        } 
        else if (panelMateri.activeSelf) {
            PutarSuara(listSayur[indexMateri]);
            PlayShake(imgSayurMateri.GetComponent<RectTransform>());
        }
    }

    public void PlayShake(RectTransform target) {
        StopCoroutine("ProsesShake");
        StartCoroutine(ProsesShake(target));
    }

    IEnumerator ProsesShake(RectTransform target) {
        Vector3 posisiAsli = target.localPosition;
        float timer = 0f;

        while (timer < durasiShake) {
            timer += Time.deltaTime;
            float x = Random.Range(-1f, 1f) * kekuatanShake;
            target.localPosition = new Vector3(posisiAsli.x + x, posisiAsli.y, posisiAsli.z);
            yield return null;
        }
        target.localPosition = posisiAsli;
    }
    
    // --- FUNGSI AUDIO PENDUKUNG ---

    IEnumerator ProsesDucking(float targetVolume) {
        if (sourceBGM == null) yield break;

        while (Mathf.Abs(sourceBGM.volume - targetVolume) > 0.01f) {
            sourceBGM.volume = Mathf.MoveTowards(sourceBGM.volume, targetVolume, Time.deltaTime * 2f);
            yield return null;
        }
        sourceBGM.volume = targetVolume;
    }

    void ResetMusik() {
        if (gameObject.activeInHierarchy) {
            StopCoroutine("ProsesDucking");
            StartCoroutine(ProsesDucking(volumeNormal));
        }
    }

    // Cukup tulis satu kali saja di sini
    IEnumerator TungguSuaraSelesai(float durasi) {
        yield return new WaitForSeconds(durasi);
        ResetMusik();
    }

    IEnumerator EfekKedipCatatan() {
        if (txtBubble == null) yield break; // <-- Ganti jadi txtBubble

        while (panelBaris.activeSelf && txtBubble.gameObject.activeSelf) { // <-- Ganti jadi txtBubble
            float timer = 0;
            while (timer < 0.5f) {
                timer += Time.deltaTime;
                txtBubble.alpha = Mathf.Lerp(1f, 0.2f, timer / 0.5f); // <-- Ganti jadi txtBubble
                yield return null;
            }
            
            timer = 0;
            while (timer < 0.5f) {
                timer += Time.deltaTime;
                txtBubble.alpha = Mathf.Lerp(0.2f, 1f, timer / 0.5f); // <-- Ganti jadi txtBubble
                yield return null;
            }
            
            yield return new WaitForSeconds(0.3f);
        }
    }

    // --- COROUTINE ANIMASI POP UP BUBBLE CHAT ---
    IEnumerator EfekPopUpBubble() {
        // Set ukuran awal bubble jadi nol (tidak terlihat)
        panelBubbleParent.transform.localScale = Vector3.zero;
        
        float timer = 0;
        float durasi = 0.35f;

        while (timer < durasi) {
            timer += Time.deltaTime;
            float progress = timer / durasi;
            
            // Menggunakan rumus matematika Sinus untuk efek bounce (membal) yang kenyal
            float bounceCurve = Mathf.Sin(progress * Mathf.PI * 0.85f) * 1.1f; 
            panelBubbleParent.transform.localScale = new Vector3(bounceCurve, bounceCurve, bounceCurve);
            yield return null;
        }
        
        // Kunci ukuran akhir ke normal (1,1,1)
        panelBubbleParent.transform.localScale = Vector3.one;
    }
}