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

public class InputUserController : MonoBehaviour
{
    public TMP_InputField inputNama;
    public TMP_InputField inputKelas;
    public TMP_InputField inputAbsen;
    public TextMeshProUGUI infoText;

    public void OnSubmitClicked()
    {
        if (string.IsNullOrWhiteSpace(inputNama.text) ||
            string.IsNullOrWhiteSpace(inputKelas.text) ||
            string.IsNullOrWhiteSpace(inputAbsen.text))
        {
            infoText.text = "Semua kolom wajib diisi.";
            return;
        }

        if (!int.TryParse(inputAbsen.text.Trim(), out int absen))
        {
            infoText.text = "Nomor absen harus berupa angka.";
            return;
        }

        string namaInput = inputNama.text.Trim();
        string namaFormat = FormatNama(namaInput);
        if (namaInput != namaFormat)
        {
            infoText.text = "Nama harus menggunakan format Title Case.\nContoh: Budi Setiawan";
            return;
        }

        string username = namaFormat;
        string kelas = inputKelas.text.Trim().ToUpper();
        string absenStr = absen.ToString();
        string kodeLogin = $"{username}_{kelas}_{absenStr}";

        if (!DBManager.IsConnectedToInternet())
        {
            infoText.text = "Tidak ada koneksi internet.";
            return;
        }

        infoText.text = "Mencoba login...";

        // Cek apakah user sudah ada di Firebase
        DBManager.SyncUserToFirebase(kodeLogin, success =>
        {
            if (success)
            {
                // Jika user ada, ambil semua datanya dari Firebase
                TestManager.Instance.LoadAllUserDataFromFirebase(kodeLogin, loaded =>
                {
                    if (loaded)
                    {
                        infoText.text = "Login berhasil!";
                        if (TestManager.Instance.pretestScore > 0)
                            SceneManager.LoadScene("Main Menu");
                        else
                            SceneManager.LoadScene("Pretest");
                    }
                    else
                    {
                        infoText.text = "Gagal memuat data user dari Firebase.";
                    }
                });
            }
            else
            {
                infoText.text = "Akun tidak ditemukan. Mencoba mendaftarkan user baru...";

                // Buat akun baru di Firebase
                DBManager.CreateUser(kodeLogin, username, kelas, absenStr, created =>
                {
                    if (created)
                    {
                        // Simpan progress level awal (1) untuk semua materi
                        if (LevelControl.Instance != null)
                        {
                            foreach (var pair in LevelControl.Instance.materiLevelPairs)
                            {
                                DBManager.SaveUnlockedLevel(kodeLogin, pair.materiName, 1);
                            }
                        }

                        // Set user data di TestManager
                        TestManager.Instance.SetUserData(username, 0, 0, kelas, absenStr);
                        infoText.text = "Pendaftaran berhasil. Lanjut ke Pretest...";
                        SceneManager.LoadScene("Pretest");
                    }
                    else
                    {
                        infoText.text = "Gagal mendaftarkan user. Periksa koneksi internet.";
                    }
                });
            }
        });
    }

    private string FormatNama(string nama)
    {
        TextInfo textInfo = new CultureInfo("id-ID", false).TextInfo;
        return textInfo.ToTitleCase(nama.ToLower());
    }
}