using System.IO;
using UnityEngine;

public class SongDataManager : MonoBehaviour
{
    private string jsonDirectory;

    [Header("Settings")]
    public bool autoSaveOnStart = false;

    void Start()
    {
        jsonDirectory = Path.Combine(Application.persistentDataPath, "song_json_export");

        if (!Directory.Exists(jsonDirectory))
        {
            Directory.CreateDirectory(jsonDirectory);
            Debug.Log("Created song JSON directory: " + jsonDirectory);
        }

        if (autoSaveOnStart)
        {
            StartCoroutine(SaveAllSongDataToJsonRoutine());
        }
    }

    public void TriggerSaveAllSongs()
    {
        StartCoroutine(SaveAllSongDataToJsonRoutine());
    }

    System.Collections.IEnumerator SaveAllSongDataToJsonRoutine()
    {
        SongData[] allSongData = Resources.LoadAll<SongData>("song_songIndex");

        if (allSongData.Length == 0)
        {
            Debug.LogWarning("No SongData assets found in Resources/song_songIndex.");
            yield break;
        }

        Debug.Log($"Start exporting {allSongData.Length} songs to JSON...");

        for (int i = 0; i < allSongData.Length; i++)
        {
            SongData song = allSongData[i];
            if (song == null) continue;

            SongDataSerializable jsonData = new SongDataSerializable(song);
            string json = JsonUtility.ToJson(jsonData, true);

            string filePath = Path.Combine(jsonDirectory, song.songID + ".json");
            File.WriteAllText(filePath, json);

            yield return null;
        }
        
        Debug.Log("All song JSON files exported.");
    }
}