using System.Collections.Generic;
using Godot;

public class FileHandler()
{
    public static void CreateScriptDirectory()
    {
        DirAccess.MakeDirRecursiveAbsolute("user://scripts");
    }

    public static void SaveProgram(string filename, string content)
    {
        CreateScriptDirectory();
        string path = $"user://scripts/{filename}.dsl";

        FileAccess file = FileAccess.Open(path, FileAccess.ModeFlags.Write);
        file.StoreString(content);
    }

    public static List<string> LoadProgramNames()
    {
        CreateScriptDirectory();
        List<string> programs = new List<string>();

        DirAccess dir = DirAccess.Open("user://scripts");
        if (dir == null)
            return programs;

        dir.ListDirBegin();
        while (true)
        {
            string fileName = dir.GetNext();
            if (fileName == "")
                break;

            if (!dir.CurrentIsDir() && fileName.EndsWith(".dsl"))
            {
                programs.Add(fileName.Replace(".dsl", ""));
            }
        }
        dir.ListDirEnd();

        return programs;
    }

    public static string LoadProgram(string name)
    {
        CreateScriptDirectory();
        string path = $"user://scripts/{name}.dsl";

        if (!FileAccess.FileExists(path))
            return "";

        FileAccess file = FileAccess.Open(path, FileAccess.ModeFlags.Read);
        return file.GetAsText();
    }
}