healthcare-frontend/lib/invitations/invitations.dart

import 'package:flutter/material.dart';
import 'package:healthcare_user/common/settings.dart';
import 'package:flutter_native_contact_picker/flutter_native_contact_picker.dart';
import 'package:intl/intl.dart';

class Invitations extends StatefulWidget {
  const Invitations({Key? key}) : super(key: key);

  @override
  State<Invitations> createState() => _InvitationsState();
}

class _InvitationsState extends State<Invitations> {
  TextEditingController mobileNumberController = TextEditingController();
  TextEditingController nameController = TextEditingController();

  final FlutterContactPicker _contactPicker = new FlutterContactPicker();
  Contact? _contact;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppSettings.appBar('Invitations'),
        body: GestureDetector(
            onTap: () {
              FocusManager.instance.primaryFocus?.unfocus();
            },
            child: SafeArea(
                child: SingleChildScrollView(
                    child: Padding(
                        padding: const EdgeInsets.all(10),
                        child: Column(
                          children: [
                            Container(
                              child: TextFormField(
                                cursorColor: greyColor,
                                controller: nameController,
                                decoration: textFormFieldDecoration(
                                    Icons.person, 'Enter Name'),
                              ),
                            ),
                            SizedBox(
                              height: MediaQuery.of(context).size.height * .02,
                            ),
                            Container(
                              child: TextFormField(
                                cursorColor: greyColor,
                                controller: mobileNumberController,
                                keyboardType: TextInputType.number,
                                decoration: textFormFieldDecoration(
                                    Icons.phone, 'Enter MobileNumber'),
                              ),
                            ),
                            SizedBox(
                              height: MediaQuery.of(context).size.height * .04,
                            ),
                            Container(
                                width: double.infinity,
                                height:
                                    MediaQuery.of(context).size.height * .05,
                                child: ElevatedButton(
                                  style: ElevatedButton.styleFrom(
                                    primary: buttonColors, // background
                                    onPrimary: Colors.black, // foreground
                                  ),
                                  onPressed: () async {
                                    if (nameController.text != '' &&
                                        mobileNumberController.text != '') {
                                      AppSettings.preLoaderDialog(context);

                                      var now = new DateTime.now();
                                      String formattedDate = DateFormat('yyyy-MM-dd – kk:mm').format(now);

                                      var payload = new Map<String, dynamic>();



                                      payload["name"] = AppSettings.userName;
                                      payload["phone"] = mobileNumberController.text;
                                      payload["dateAndTime"] = formattedDate;
                                      bool invitationStatus = await AppSettings.inviteFriend(payload);

                                      try{
                                        if(invitationStatus){
                                          Navigator.of(context, rootNavigator: true).pop();
                                          AppSettings.longSuccessToast("Invitation sent successfully");
                                          nameController.clear();
                                          mobileNumberController.clear();
                                        }
                                        else{
                                          Navigator.of(context, rootNavigator: true).pop();
                                          AppSettings.longFailedToast("Failed invite your friend");
                                        }
                                      }
                                      catch(e){
                                        AppSettings.longFailedToast("Failed invite your friend");
                                      }
                                    }
                                    else {
                                      AppSettings.longFailedToast("details should not be empty");
                                    }
                                  },
                                  child: const Text('Invite'),
                                )),
                            SizedBox(
                              height: MediaQuery.of(context).size.height * .02,
                            ),
                            Container(
                              child: Text(
                                'Or',
                                style: TextStyle(
                                    color: primaryColor,
                                    fontWeight: FontWeight.bold,
                                    fontSize: 20),
                              ),
                            ),
                            SizedBox(
                              height: MediaQuery.of(context).size.height * .02,
                            ),
                            TextButton(
                              child: const Text(
                                'Select from contacts',
                                style: TextStyle(
                                    decoration: TextDecoration.underline,
                                    color: primaryColor,
                                    fontSize: 20),
                              ),
                              onPressed: () async {
                                Contact? contact =
                                    await _contactPicker.selectContact();
                                setState(() {
                                  _contact = contact;
                                });
                                AppSettings.preLoaderDialog(context);

                                var now = new DateTime.now();
                                String formattedDate = DateFormat('yyyy-MM-dd – kk:mm').format(now);

                                var payload = new Map<String, dynamic>();

                                String  contactNumber=_contact!.phoneNumbers.toString();
                                String newContact= contactNumber.substring( 1, contactNumber.length - 1 ).trim();

                                String stringAfterRemovingWhiteSpace = '';
                                for (int i = 0; i < newContact.length; i++) {
                                  if (!newContact[i].contains(' ')) {
                                    stringAfterRemovingWhiteSpace = stringAfterRemovingWhiteSpace + "" + newContact[i];
                                  }
                                }

                                payload["name"] =AppSettings.userName;
                                payload["phone"] = stringAfterRemovingWhiteSpace;
                                payload["dateAndTime"] = formattedDate;
                                bool invitationStatus = await AppSettings.inviteFriend(payload);

                                try{
                                  if(invitationStatus){
                                    Navigator.of(context, rootNavigator: true).pop();
                                    AppSettings.longSuccessToast("Invitation sent successfully");

                                  }
                                  else{
                                    Navigator.of(context, rootNavigator: true).pop();
                                    AppSettings.longFailedToast("Failed invite your friend");
                                  }
                                }
                                catch(e){
                                  AppSettings.longFailedToast("Failed invite your friend");
                                }
                              },
                            )
                          ],
                        ))))));
  }
}