Files
SethDiscordBot/DiscordBotCore/Loaders/Loader.cs

80 lines
2.5 KiB
C#

using System;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using DiscordBotCore.Interfaces;
using DiscordBotCore.Others;
namespace DiscordBotCore.Loaders;
internal class Loader
{
internal delegate void FileLoadedHandler(FileLoaderResult result);
internal delegate void PluginLoadedHandler(PluginLoadResultData result);
internal event FileLoadedHandler? OnFileLoadedException;
internal event PluginLoadedHandler? OnPluginLoaded;
internal async Task Load()
{
var installedPlugins = await Application.CurrentApplication.PluginManager.GetInstalledPlugins();
var files = installedPlugins.Select(plugin => plugin.FilePath).ToArray();
foreach (var file in files)
{
try
{
Assembly.LoadFrom(file);
}
catch
{
OnFileLoadedException?.Invoke(new FileLoaderResult(file, $"Failed to load file {file}"));
}
}
await LoadEverythingOfType<DBEvent>();
await LoadEverythingOfType<DBCommand>();
await LoadEverythingOfType<DBSlashCommand>();
await LoadEverythingOfType<ICommandAction>();
}
private async Task LoadEverythingOfType<T>()
{
var types = AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(p => typeof(T).IsAssignableFrom(p) && !p.IsInterface);
foreach (var type in types)
{
try
{
var plugin = (T?)Activator.CreateInstance(type);
if (plugin is null)
{
throw new Exception($"Failed to create instance of plugin with type {type.FullName} [{type.Assembly}]");
}
var pluginType = plugin switch
{
DBEvent => PluginType.EVENT,
DBCommand => PluginType.COMMAND,
DBSlashCommand => PluginType.SLASH_COMMAND,
ICommandAction => PluginType.ACTION,
_ => PluginType.UNKNOWN
};
OnPluginLoaded?.Invoke(new PluginLoadResultData(type.FullName, pluginType, true, plugin: plugin));
}
catch (Exception ex)
{
OnPluginLoaded?.Invoke(new PluginLoadResultData(type.FullName, PluginType.UNKNOWN, false, ex.Message));
}
}
}
}