CommandReference/SamplePlugin/Plugin.cs

using System.IO;
using Dalamud.Game.Command;
using Dalamud.Interface.Windowing;
using Dalamud.IoC;
using Dalamud.Plugin;
using Dalamud.Plugin.Services;
using SamplePlugin.Windows;

namespace SamplePlugin
{
    public sealed class Plugin : IDalamudPlugin
    {
        public string Name => "Sample Plugin";
        private const string CommandName = "/pmycommand";

        private DalamudPluginInterface pluginInterface { get; init; }
        private ICommandManager commandManager { get; init; }
        public Configuration configuration { get; init; }
        internal WindowSystem windowSystem = new("SamplePlugin");

        private ConfigWindow ConfigWindow { get; init; }
        private MainWindow MainWindow { get; init; }

        public Plugin(
            [RequiredVersion("1.0")] DalamudPluginInterface pluginInterface,
            [RequiredVersion("1.0")] ICommandManager commandManager
        )
        {
            this.pluginInterface = pluginInterface;
            this.commandManager = commandManager;

            configuration =
                pluginInterface.GetPluginConfig() as Configuration ?? new Configuration();
            configuration.Initialize(this.pluginInterface);

            // you might normally want to embed resources and load them from the manifest stream
            var imagePath = Path.Combine(
                this.pluginInterface.AssemblyLocation.Directory?.FullName!,
                "goat.png"
            );
            var goatImage = this.pluginInterface.UiBuilder.LoadImage(imagePath);

            ConfigWindow = new ConfigWindow(this);
            MainWindow = new MainWindow(this, goatImage);

            windowSystem.AddWindow(ConfigWindow);
            windowSystem.AddWindow(MainWindow);

            _ = this.commandManager.AddHandler(
                CommandName,
                new CommandInfo(OnCommand)
                {
                    HelpMessage = "A useful message to display in /xlhelp"
                }
            );

            this.pluginInterface.UiBuilder.Draw += DrawUI;
            this.pluginInterface.UiBuilder.OpenConfigUi += DrawConfigUI;
        }

        public void Dispose()
        {
            this.windowSystem.RemoveAllWindows();

            ConfigWindow.Dispose();
            MainWindow.Dispose();

            this.commandManager.RemoveHandler(CommandName);
        }

        private void OnCommand(string command, string args)
        {
            // in response to the slash command, just display our main ui
            MainWindow.IsOpen = true;
        }

        private void DrawUI()
        {
            this.windowSystem.Draw();
        }

        public void DrawConfigUI()
        {
            ConfigWindow.IsOpen = true;
        }
    }
}