using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

public class SongDataLoader : MonoBehaviour
{
    private string jsonDirectory;
    public List<SongDataSerializable> loadedSongs = new List<SongDataSerializable>();
    [SerializeField] private int _yieldEveryNFiles = 5;

    void Start()
    {
        jsonDirectory = Path.Combine(Application.persistentDataPath, "SongDataJson");
        StartCoroutine(LoadAllSongsFromJsonRoutine());
    }

    IEnumerator LoadAllSongsFromJsonRoutine()
    {
        if (!Directory.Exists(jsonDirectory))
        {
            Debug.LogError("JSON �ļ��в����ڣ�");
            yield break;
        }

        loadedSongs.Clear();
        IEnumerable<string> jsonFiles = Directory.EnumerateFiles(jsonDirectory, "*.json");
        int counter = 0;

        foreach (string file in jsonFiles)
        {
            string json = File.ReadAllText(file);
            SongDataSerializable jsonData = JsonUtility.FromJson<SongDataSerializable>(json);
            loadedSongs.Add(jsonData);
            // 由于 SongDataSerializable 现在只存储动态分数，不再包含 songName
            Debug.Log($"Loaded persistent song data from: {Path.GetFileName(file)}");
            counter++;
            if (_yieldEveryNFiles > 0 && counter % _yieldEveryNFiles == 0)
                yield return null;
        }
    }
}