cssd/lib/pages/MyPackagesPages/my_packages_transfer_screen.dart

import 'package:cssd/config/colors.dart';
import 'package:cssd/config/routes.dart';
import 'package:cssd/models/package_model.dart';
import 'package:cssd/providers/connectivity.dart';
import 'package:cssd/providers/my_packages.dart';
import 'package:cssd/providers/users.dart';
import 'package:cssd/widgets/CycleScreens/Result/banner.dart';
import 'package:cssd/widgets/CycleScreens/Result/search_box.dart';
import 'package:cssd/widgets/Global/internet_error.dart';
import 'package:cssd/widgets/MyItemsScreens/Detail/cancel_transfer_button.dart';
import 'package:cssd/widgets/MyItemsScreens/Detail/transfer_data_box.dart';
import 'package:cssd/widgets/MyItemsScreens/Detail/transfer_destroy_button.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';

class PackageTransferScreen extends StatefulWidget {
  final bool? isAdmin;
  final PackageDetailObject? packages;
  const PackageTransferScreen({
    super.key,
    this.isAdmin,
    this.packages,
  });

  @override
  State<PackageTransferScreen> createState() => _PackageTransferScreenState();
}

class _PackageTransferScreenState extends State<PackageTransferScreen> {
  bool _isInit = true;
  ScrollController? sc;
  TextEditingController searchCTRL = new TextEditingController();
  PackageDetailObject? packageData;

  @override
  void initState() {
    sc = new ScrollController();
    super.initState();
  }

  @override
  void didChangeDependencies() async {
    if (_isInit) {
      packageData =
          ModalRoute.of(context)!.settings.arguments as PackageDetailObject?;
      var userResults = Provider.of<UsersProvider>(context);
      userResults.resetSelectedUser();
      userResults.setLoading();
      String medicalCenterId =
          await userResults.getUserMedicalCenter() as String;
      userResults.getUsers(medicalCenterId).then((_) {
        userResults.resetLoading();
        sc!.addListener(
          () {
            if (sc!.position.pixels == sc!.position.maxScrollExtent &&
                searchCTRL.text == '') {
              var userResults = Provider.of<UsersProvider>(
                context,
                listen: false,
              );
              userResults.getUsers(medicalCenterId);
            }
          },
        );
      });
    }
    _isInit = 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: GestureDetector(
        onTap: () {
          FocusManager.instance.primaryFocus?.unfocus();
        },
        child: Scaffold(
          appBar: AppBar(
            titleSpacing: -10,
            title: Text('Package Details', 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'
                  ? Padding(
                      padding: EdgeInsets.only(
                        top: 20,
                        right: 20,
                        bottom: 40,
                        left: 20,
                      ),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: <Widget>[
                          ResultBanner(
                            deviceBlockSize: _deviceBlockSize,
                            text: 'Transfer to',
                            hasFilterObject: false,
                            push: Routes.myItemsFilterScreen,
                          ),
                          SizedBox(
                            height: 20.0,
                          ),
                          ResultSearchBox(
                            searchCTRL: searchCTRL,
                            text: 'user',
                            text2: 'name or ID',
                            deviceBlockSize: _deviceBlockSize,
                            textInputType: TextInputType.visiblePassword,
                            onChanged: (value) {
                              Provider.of<UsersProvider>(context, listen: false)
                                  .searchUsers(value);
                            },
                          ),
                          SizedBox(
                            height: 20,
                          ),
                          Expanded(
                            child: Consumer<UsersProvider>(
                              builder: (context, userResults, _) {
                                return userResults.isLoading
                                    ? Center(
                                        child: CircularProgressIndicator(
                                          color: Colors.black,
                                        ),
                                      )
                                    : ListView.builder(
                                        controller: sc,
                                        itemBuilder: (context, index) {
                                          return TransferDataBox(
                                            deviceBlockSize: _deviceBlockSize,
                                            user: userResults.usersBox?[index],
                                            clickColor: kDarkPurple,
                                            isClicked:
                                                userResults.selectedUserIndex ==
                                                    index,
                                            onTap: (userId) {
                                              Provider.of<UsersProvider>(
                                                context,
                                                listen: false,
                                              ).selectUser(index);
                                              print(userId);
                                              Provider.of<UsersProvider>(
                                                      context,
                                                      listen: false)
                                                  .saveUserId = userId;
                                              Provider.of<UsersProvider>(
                                                          context,
                                                          listen: false)
                                                      .selectedUserForPackages =
                                                  userResults.usersBox?[index];
                                            },
                                          );
                                        },
                                        itemCount: userResults.usersBox?.length,
                                        shrinkWrap: true,
                                      );
                              },
                            ),
                          ),
                          TransferDestroyButton(
                            deviceBlockSize: _deviceBlockSize,
                            firstColor: kDarkPurple,
                            secondColor: kDarkPurpleSub,
                            onTap: () {
                              showDialog(
                                context: context,
                                builder: (context) {
                                  return AlertDialog(
                                    title: Text(
                                      'Are you sure to transfer this Package?',
                                      style: TextStyle(
                                        fontSize: 4 * _deviceBlockSize,
                                      ),
                                    ),
                                    content: SizedBox(
                                      width: _deviceBlockSize,
                                      height: 300,
                                      child: Column(
                                        children: [
                                          Text(
                                            'By approving, all items in your package will be transferred the specified user. it can be undone unless the user reject the transfer.',
                                            style: TextStyle(
                                              fontSize: 3 * _deviceBlockSize,
                                            ),
                                          ),
                                          SizedBox(
                                            height: 10.0,
                                          ),
                                          PackageCard(
                                              _deviceBlockSize, packageData!),
                                          SizedBox(
                                            height: 5.0,
                                          ),
                                          Row(
                                            children: [
                                              Spacer(),
                                              Text('To'),
                                              SizedBox(
                                                width: 5.0,
                                              ),
                                              TransferDataBox(
                                                deviceBlockSize:
                                                    _deviceBlockSize,
                                                user: Provider.of<
                                                        UsersProvider>(context)
                                                    .selectedUserForPackages,
                                              )
                                            ],
                                          ),
                                          SizedBox(
                                            height: 20.0,
                                          ),
                                          TransferDestroyButton(
                                            deviceBlockSize: _deviceBlockSize,
                                            firstColor: kDarkPurple,
                                            secondColor: kDarkPurpleSub,
                                            onTap: () {
                                              Provider.of<MyPackageProvider>(
                                                context,
                                                listen: false,
                                              ).transferPackage(
                                                packageData!.id,
                                                Provider.of<UsersProvider>(
                                                        context,
                                                        listen: false)
                                                    .saveUserId!,
                                              );
                                              Navigator.of(context).pop();
                                              Navigator.of(context)
                                                  .popAndPushNamed(Routes
                                                      .myPackagesResultScreen);
                                            },
                                            text: 'Transfer',
                                          ),
                                          SizedBox(
                                            height: 5.0,
                                          ),
                                          CancelTransferButton(
                                            deviceBlockSize: _deviceBlockSize,
                                            color: kPink,
                                            onTap: () {
                                              Navigator.pop(context);
                                            },
                                          ),
                                        ],
                                      ),
                                    ),
                                  );
                                },
                              );
                            },
                            text: 'Transfer',
                          ),
                        ],
                      ),
                    )
                  : ConnectionErrorBox();
            },
          ),
        ),
      ),
    );
  }

  Container PackageCard(double _deviceBlockSize, PackageDetailObject package) {
    return Container(
      decoration: BoxDecoration(
        border: Border.all(color: Colors.grey),
        borderRadius: BorderRadius.circular(5),
      ),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: <Widget>[
          Container(
            padding: const EdgeInsets.all(6.0),
            child: Text(
              package.id,
              style: TextStyle(
                fontWeight: FontWeight.w700,
                fontSize: 5 * _deviceBlockSize,
              ),
            ),
          ),
          SizedBox(
            width: 3 * _deviceBlockSize,
          ),
          // Spacer(),
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Container(
                width: 40 * _deviceBlockSize,
                child: Text(
                  package.name,
                  style: TextStyle(
                    fontSize: 3 * _deviceBlockSize,
                    fontWeight: FontWeight.w700,
                  ),
                ),
              ),
              // Container(
              //   width: 30 * _deviceBlockSize,
              //   child: Row(
              //     children: [
              //       Text(
              //         'Size: ',
              //         overflow: TextOverflow.ellipsis,
              //         style: TextStyle(
              //           fontSize: 3 * _deviceBlockSize,
              //           color: Colors.grey,
              //         ),
              //       ),
              //       Text(
              //         PackageTransferScreen().packages!.size,
              //         overflow: TextOverflow.ellipsis,
              //         style: TextStyle(
              //           fontWeight: FontWeight.w700,
              //           fontSize: 3 * _deviceBlockSize,
              //         ),
              //       ),
              //     ],
              //   ),
              // ),
              // Container(
              //   width: 30 * _deviceBlockSize,
              //   child: Row(
              //     children: <Widget>[
              //       Text(
              //         'User: ',
              //         style: TextStyle(
              //           color: Colors.grey,
              //           fontSize: 3 * _deviceBlockSize,
              //         ),
              //       ),
              //       Text(
              //         PackageTransferScreen().packages!.userName,
              //         style: TextStyle(
              //           fontSize: 3 * _deviceBlockSize,
              //           fontWeight: FontWeight.w700,
              //         ),
              //       ),
              //     ],
              //   ),
              // ),
            ],
          ),
        ],
      ),
    );
  }
}