se-launcher/CringePlugins/Loader/PluginsLifetime.cs

using System.Collections.Immutable;
using NLog;

namespace CringePlugins.Loader;

public class PluginsLifetime
{
    private static readonly Logger Log = LogManager.GetCurrentClassLogger();
    
    private readonly ImmutableArray<PluginInstance> _plugins;
    
    public PluginsLifetime()
    {
        var dir = Directory.CreateDirectory(Path.Join(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "CringeLauncher", "plugins"));

        var plugins = ImmutableArray<PluginInstance>.Empty.ToBuilder();
        
        foreach (var directory in dir.EnumerateDirectories())
        {
            var files = directory.GetFiles("*.dll");
            
            if (files.Length != 1) continue;
            
            try
            {
                plugins.Add(new PluginInstance(files[0].FullName));
            }
            catch (Exception e)
            { 
                Log.Error(e, "Failed to load plugin {PluginPath}", files[0].FullName);
            }
        }
        
        _plugins = plugins.ToImmutable();
        
        foreach (var instance in _plugins)
        {
            try
            {
                instance.Instantiate();
                instance.RegisterLifetime();
            }
            catch (Exception e)
            {
                Log.Error(e, "Failed to instantiate plugin {Plugin}", instance.Metadata);
            }
        }
    }
}