RuinAdventurer/Scripts/Core/FileHandler.cs

using System.Collections.Generic;
using Godot;

public static class FileHandler
{
	private const string ScriptDirectory = "user://scripts";
	private const string ScriptExtension = ".json";

	public static void CreateScriptDirectory()
	{
		DirAccess.MakeDirRecursiveAbsolute(ScriptDirectory);
	}

	public static void SaveProgram(string filename, string content)
	{
		CreateScriptDirectory();
		string path = GetProgramPath(filename);

		FileAccess file = FileAccess.Open(path, FileAccess.ModeFlags.Write);
		if (file == null) return;

		file.StoreString(content);
		file.Flush();
	}

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

		DirAccess dir = DirAccess.Open(ScriptDirectory);
		if (dir == null)
		{
			return programs;
		}

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

			if (dir.CurrentIsDir()) continue;
			if (!fileName.EndsWith(ScriptExtension)) continue;

			programs.Add(fileName.Replace(ScriptExtension, ""));
		}
		dir.ListDirEnd();

		return programs;
	}

	public static string LoadProgram(string name)
	{
		CreateScriptDirectory();
		string path = GetProgramPath(name);

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

		FileAccess file = FileAccess.Open(path, FileAccess.ModeFlags.Read);
		if (file == null) return "";

		return file.GetAsText();
	}

	public static bool DeleteProgram(string name)
	{
		CreateScriptDirectory();
		string path = GetProgramPath(name);

		if (!FileAccess.FileExists(path))
		{
			return false;
		}

		DirAccess dir = DirAccess.Open(ScriptDirectory);
		if (dir == null)
		{
			return false;
		}

		return dir.Remove($"{name}{ScriptExtension}") == Error.Ok;
	}

	private static string GetProgramPath(string filename)
	{
		return $"{ScriptDirectory}/{filename}{ScriptExtension}";
	}
}