using UnityEngine;

[System.Serializable]
public class SaveData
{
    public int nodeID;
    public int chapterPoints; // 🔥 WAJIB
}

public static class VN_SaveSystem
{
    private static string GetKey(int slot)
    {
        return "save_" + slot;
    }

    // ================= SAVE =================
public static void Save(int nodeID, int chapterPoints, int slot = 1)
{
    SaveData data = new SaveData();
    data.nodeID = nodeID;
    data.chapterPoints = chapterPoints;

    string json = JsonUtility.ToJson(data);
    PlayerPrefs.SetString(GetKey(slot), json);
    PlayerPrefs.Save();

    Debug.Log("Game Saved (Slot " + slot + ")");
}

    // ================= LOAD =================
// ================= LOAD =================
public static SaveData Load(int slot = 1)
{
    if (!PlayerPrefs.HasKey(GetKey(slot)))
    {
        Debug.Log("Belum ada save di slot " + slot);
        return null;
    }

    string json = PlayerPrefs.GetString(GetKey(slot));
    SaveData data = JsonUtility.FromJson<SaveData>(json);

    return data;
}

    // ================= CHECK SAVE =================
    public static bool HasSave(int slot = 1)
    {
        return PlayerPrefs.HasKey(GetKey(slot));
    }

    // ================= DELETE SAVE =================
    public static void DeleteSave(int slot = 1)
    {
        if (PlayerPrefs.HasKey(GetKey(slot)))
        {
            PlayerPrefs.DeleteKey(GetKey(slot));
            Debug.Log("Save dihapus (Slot " + slot + ")");
        }
    }

    // ================= DELETE ALL =================
    public static void DeleteAllSave()
    {
        int maxSlot = 10;

        for (int i = 1; i <= maxSlot; i++)
        {
            string key = "save_" + i;

            if (PlayerPrefs.HasKey(key))
            {
                PlayerPrefs.DeleteKey(key);
            }
        }

        PlayerPrefs.Save();
        Debug.Log("SEMUA SAVE DIHAPUS (ALL SLOTS)");
    }
}