using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Runtime;
using Autodesk.ProcessPower.PlantInstance;
using Autodesk.Windows;
using AcadApplication = Autodesk.AutoCAD.ApplicationServices.Application;

namespace PRecAnnot.Plant3D2026;

public sealed class EntryPoint : IExtensionApplication
{
    public void Initialize() => RibbonIntegration.Register();

    public void Terminate() { }

    [CommandMethod("PHP_REC_ANNOT")]
    public void PrimaryCommand() => RunDiagnostic("PHP_REC_ANNOT");

    [CommandMethod("PXP-AAV")]
    public void AutoAnnotateViewCommand() => RunDiagnostic("PXP-AAV");

    [CommandMethod("PXP-OA")]
    public void OrthoAnnotateCommand() => RunDiagnostic("PXP-OA");

    private static void RunDiagnostic(string commandName)
    {
        try
        {
            Document? document = AcadApplication.DocumentManager.MdiActiveDocument;
            if (document is null)
                return;

            Editor editor = document.Editor;
            if (PlantApplication.CurrentProject is null)
            {
                editor.WriteMessage("\nP_Rec_Annot: активный Plant 3D project не найден; DWG не изменён.");
                return;
            }

            editor.WriteMessage($"\nP_Rec_Annot {commandName}: Plant 3D project '{PlantApplication.CurrentProject.Name}' найден; diagnostic-only, DWG не изменён.");
        }
        catch (System.Exception exception)
        {
            try { AcadApplication.DocumentManager.MdiActiveDocument?.Editor.WriteMessage($"\nP_Rec_Annot: безопасная диагностика завершилась ошибкой: {exception.Message}"); }
            catch { }
        }
    }
}

internal static class RibbonIntegration
{
    private const string TabId = "PRecAnnot.Plant3D2026";
    private const string Command = "PHP_REC_ANNOT ";

    public static void Register()
    {
        try
        {
            RibbonControl? ribbon = ComponentManager.Ribbon;
            if (ribbon is null) return;

            RibbonTab? tab = ribbon.Tabs.FirstOrDefault(item => string.Equals(item.Id, TabId, StringComparison.OrdinalIgnoreCase));
            if (tab is null)
            {
                tab = new RibbonTab { Id = TabId, Title = "Промхимпроект" };
                ribbon.Tabs.Add(tab);
            }

            if (tab.Panels.Any(panel => string.Equals(panel.Source?.Title, "Аннотации", StringComparison.OrdinalIgnoreCase))) return;

            RibbonPanelSource source = new() { Title = "Аннотации" };
            source.Items.Add(new RibbonButton { Text = "Аннотировать", ShowText = true, CommandParameter = Command });
            tab.Panels.Add(new RibbonPanel { Source = source });
        }
        catch
        {
            // Ribbon is optional; command-line registration remains available.
        }
    }
}