using System;
using System.IO;
using UnityEngine;

namespace Ironspore
{
    public static class GameDataPaths
    {
        public static string DirectoryPath
        {
            get
            {
                string isolated = CommandLineDirectory();
                if (isolated != null)
                    return isolated;
#if UNITY_EDITOR
                return Path.GetFullPath(Path.Combine(Application.dataPath, "../UserSettings/Ironspore"));
#else
                return Path.Combine(Application.persistentDataPath, "Ironspore");
#endif
            }
        }

        public static string PreferenceKey(string key)
        {
            string isolated = CommandLineDirectory();
#if UNITY_EDITOR
            isolated = isolated ?? DirectoryPath;
#endif
            return isolated == null ? key : "ironspore." + Hash128.Compute(isolated.ToLowerInvariant()) + "." + key;
        }

        static string CommandLineDirectory()
        {
            string[] args = Environment.GetCommandLineArgs();
            for (int i = 0; i + 1 < args.Length; i++)
                if (args[i] == "-ironspore-data-path" && Path.IsPathRooted(args[i + 1]))
                    return Path.GetFullPath(args[i + 1]);
            return null;
        }
    }
}