using System.Reflection;
using HarmonyLib;
using PluginLoader.Data;
using Sandbox.Game.World;
using VRage.Game;

namespace PluginLoader.Patch;

[HarmonyPatch(typeof(MyScriptManager), "LoadData")]
public static class Patch_MyScripManager
{
    private static readonly Action<MyScriptManager, string, MyModContext> loadScripts;

    static Patch_MyScripManager()
    {
        loadScripts = (Action<MyScriptManager, string, MyModContext>)Delegate.CreateDelegate(
            typeof(Action<MyScriptManager, string, MyModContext>),
            typeof(MyScriptManager).GetMethod("LoadScripts", BindingFlags.Instance | BindingFlags.NonPublic));
    }

    public static void Postfix(MyScriptManager __instance)
    {
        try
        {
            HashSet<ulong> currentMods;
            if (MySession.Static.Mods != null)
                currentMods = new(MySession.Static.Mods.Select(x => x.PublishedFileId));
            else
                currentMods = new();

            var list = Main.Instance.List;
            foreach (var id in Main.Instance.Config.EnabledPlugins)
            {
                var data = list[id];
                if (data is ModPlugin mod && !currentMods.Contains(mod.WorkshopId) && mod.Exists)
                {
                    LogFile.WriteLine("Loading client mod scripts for " + mod.WorkshopId);
                    loadScripts(__instance, mod.ModLocation, mod.GetModContext());
                }
            }
        }
        catch (Exception e)
        {
            LogFile.WriteLine("An error occured while loading client mods: " + e);
            throw;
        }
    }
}