// lib/editor/pdf/spike_launcher.dart
//
// THROWAWAY M1 entry: lets the user open the pdfrx pen/perf spike from the
// running app (so the CI-built Windows package can exercise MUST #3/#4/#5 on a
// real Surface Pen with the user's OWN large PDFs). Remove together with the
// rest of lib/editor/pdf/spike_* once M1 is signed off.

import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';

import 'spike_editor_pane.dart';

/// Opens a file picker for a PDF, then pushes the spike pane on it.
/// Pass the user's own large PDF to get a realistic 60fps / pen test.
Future<void> openM1Spike(BuildContext context) async {
  final result = await FilePicker.platform.pickFiles(
    type: FileType.custom,
    allowedExtensions: ['pdf'],
  );
  final path = result?.files.single.path;
  if (path == null) return;
  if (!context.mounted) return;
  Navigator.of(context).push(
    MaterialPageRoute(
      builder: (_) => Scaffold(
        appBar: AppBar(title: const Text('M1 Spike — pen / scroll / zoom')),
        // denseStrokesAsset is null here: the bundled synthetic-stroke load is
        // only for the perf bench. For manual on-device testing, draw real ink
        // and scroll a real large PDF while watching the frame-time HUD.
        body: SpikeEditorPane(pdfPath: path),
      ),
    ),
  );
}