cssd/lib/pages/PackagePages/package_detail_screen.dart

import 'package:cssd/config/routes.dart';
import 'package:cssd/models/package_model.dart';
import 'package:cssd/providers/packages.dart';
import 'package:cssd/widgets/PackageScreens/Details/package_detail_box.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

import '../../providers/connectivity.dart';
import '../../widgets/Global/internet_error.dart';

class PackageDetailScreen extends StatefulWidget {
  @override
  _PackageDetailScreenState createState() => _PackageDetailScreenState();
}

class _PackageDetailScreenState extends State<PackageDetailScreen> {
  bool isInit = true;
  bool isEmpty = false;
  PackageDetailObject? datas;

  @override
  void didChangeDependencies() async {
    if (isInit) {
      var _id = ModalRoute.of(context)!.settings.arguments;
      await Provider.of<PackageProvider>(context, listen: false)
          .showPackageResult(_id.toString())
          .then(
        (result) {
          setState(
            () {
              datas = result;
              isInit = false;
              if (result.id == 'null')
                isEmpty = true;
              else
                isEmpty = false;
            },
          );
        },
      );
    }
    super.didChangeDependencies();
  }

  @override
  Widget build(BuildContext context) {
    final _media = MediaQuery.of(context);
    final double _devicewidth = _media.size.width;
    final double _deviceBlockSize = _devicewidth / 100;
    return SafeArea(
      child: Scaffold(
        appBar: AppBar(
          titleSpacing: -10,
          title: Text(
            'Packages',
            style: TextStyle(
              color: Colors.white,
            ),
          ),
          backgroundColor: Colors.black,
          leading: IconButton(
            icon: Icon(
              Icons.keyboard_arrow_left,
              color: Colors.white,
              size: 35,
            ),
            onPressed: () => Navigator.of(context).pop(),
          ),
        ),
        body: Consumer<ConnectivityProvider>(
          builder: (ct, connection, _) {
            return connection.conStatus != 'offline'
                ? isInit
                    ? Center(
                        child: CircularProgressIndicator(
                          color: Colors.black,
                        ),
                      )
                    : isEmpty
                        ? Center(
                            child: Text('This Package does\'nt exists!'),
                          )
                        : PackageDetailsDataBox(
                            datas: datas!,
                            deviceBlockSize: _deviceBlockSize,
                            goToAddLabelPage: () {
                              Navigator.pushNamed(
                                context,
                                Routes.labelAddScreen,
                                arguments: {
                                  "id": datas!.id,
                                  "name": datas!.name
                                },
                              );
                            },
                          )
                : ConnectionErrorBox();
          },
        ),
      ),
    );
  }
}