import 'package:flutter/material.dart';
import 'package:flutter_svg/svg.dart';
import 'package:mobile_scanner/mobile_scanner.dart';
import 'package:seshat/ui/sell_page/view_model/sell_view_model.dart';
import 'package:seshat/ui/sell_page/widgets/manual_scan_popup.dart';

class ScanScreen extends StatefulWidget {
  const ScanScreen({super.key, required this.viewModel});

  final SellViewModel viewModel;

  @override
  State<ScanScreen> createState() => _ScanScreenState();
}

class _ScanScreenState extends State<ScanScreen> {
  final MobileScannerController controller = MobileScannerController(
    formats: [BarcodeFormat.ean13],
    detectionTimeoutMs: 1000,
  );

  @override
  void dispose() {
    controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    return Stack(
      children: [
        MobileScanner(
          controller: controller,
          onDetect: (barcodes) async {
            widget.viewModel.showScan = false;
            widget.viewModel.scanBook(barcodes);
            controller.dispose();
          },
        ),
        SafeArea(
          child: Column(
            children: [
              IconButton(
                onPressed: () {
                  widget.viewModel.showScan = false;
                },
                icon: Icon(Icons.arrow_back),
              ),
            ],
          ),
        ),
        Center(child: SvgPicture.asset('assets/scan-overlay.svg')),
        Column(
          mainAxisAlignment: MainAxisAlignment.end,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Center(
              child: TextButton(
                style: ButtonStyle(
                  backgroundColor: WidgetStatePropertyAll(theme.cardColor),
                ),
                onPressed: () {
                  controller.stop();
                  showDialog(
                    context: context,
                    barrierDismissible: false,
                    builder: (context) => ManualScanPopup(
                      viewModel: widget.viewModel,
                      controller: controller,
                    ),
                  );
                },
                child: Text("Vendre un livre sans scanner"),
              ),
            ),
            SizedBox(height: 5),
          ],
        ),
      ],
    );
  }
}