RSGDoctorApp/lib/screens/medicine/medicine_search_screen.dart

import 'package:doctor_app_flutter/config/config.dart';
import 'package:doctor_app_flutter/config/size_config.dart';
import 'package:doctor_app_flutter/models/pharmacies_items_request_model.dart';
import 'package:doctor_app_flutter/providers/medicine_provider.dart';
import 'package:doctor_app_flutter/screens/medicine/pharmacies_list_screen.dart';
import 'package:doctor_app_flutter/util/dr_app_shared_pref.dart';
import 'package:doctor_app_flutter/util/dr_app_toast_msg.dart';
import 'package:doctor_app_flutter/util/helpers.dart';
import 'package:doctor_app_flutter/widgets/medicine/medicine_item_widget.dart';
import 'package:doctor_app_flutter/widgets/shared/app_buttons_widget.dart';
import 'package:doctor_app_flutter/widgets/shared/app_scaffold_widget.dart';
import 'package:doctor_app_flutter/widgets/shared/app_text_form_field.dart';
import 'package:doctor_app_flutter/widgets/shared/rounded_container_widget.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../../routes.dart';
import '../../util/extenstions.dart';

DrAppSharedPreferances sharedPref = DrAppSharedPreferances();

class MedicineSearchScreen extends StatefulWidget with DrAppToastMsg {
  MedicineSearchScreen({this.changeLoadingStata});
  final Function changeLoadingStata;

  @override
  _MedicineSearchState createState() => _MedicineSearchState();
}

class _MedicineSearchState extends State<MedicineSearchScreen> {
  var data;
  final myController = TextEditingController();
  Helpers helpers = new Helpers();

  var _medicineModel = PharmaciesItemsRequestModel(
      IsLoginForDoctorApp: true,
      PatientOutSA: false,
      PatientTypeID: 1,
      LanguageID: 2,
      IPAdress: "11.11.11.11",
      VersionID: 1.2,
      TokenID: "2Fi7HoIHB0eDyekVa6tCJg==",
      stamp: "2020-04-23T21:01:21.492Z",
      SessionID: "e29zoooEJ4");

  @override
  Widget build(BuildContext context) {
    return ChangeNotifierProvider(
        create: (context) => MedicineProvider(), //change builder to create
        child: Consumer<MedicineProvider>(
            builder: (context, provider, child) => AppScaffold(
                appBarTitle: "Search Medicine",
                body: Column(
                  children: <Widget>[
                    RoundedContainer(
                        child: Column(
                      children: <Widget>[
                        Icon(
                          Icons.search,
                          size: SizeConfig.imageSizeMultiplier * 15,
                        ),
                        Padding(
                          padding: EdgeInsets.only(
                              bottom: SizeConfig.heightMultiplier * 5,
                              right: SizeConfig.heightMultiplier * 3,
                              left: SizeConfig.heightMultiplier * 3,
                              top: SizeConfig.heightMultiplier * 3),
                          child: AppTextFormField(
                              hintText: 'Type Medicine Name Here..',
                              controller: myController,
                              onSaved: (value) {},
                              // validator: (value) {
                              //   return TextValidator().validateName(value);
                              // },
                              inputFormatter: ONLY_LETTERS),
                        )
                      ],
                    )),
                    Container(
                      margin: EdgeInsets.all(SizeConfig.widthMultiplier * 5),
                      child: Wrap(
                        alignment: WrapAlignment.center,
                        children: <Widget>[
                          AppButton(
                            title: "Search",
                            color: Color(0xff58434F),
                            onPressed: () {
                              MedicineProvider medicineProvider =
                                  Provider.of<MedicineProvider>(context);
                              searchMedicine(context, medicineProvider);
                            },
                          ),
                        ],
                      ),
                    ),
                    Expanded(
                      child: Container(
                        width: SizeConfig.screenWidth * 0.80,
                        child: ListView.builder(
                          scrollDirection: Axis.vertical,
                          shrinkWrap: true,
                          itemCount: data == null ? 0 : data.length,
                          itemBuilder: (BuildContext context, int index) {
                            return InkWell(
                              child: MedicineItemWidget(
                                label: data[index]["ItemDescription"],
                              ),
                              onTap: () {
                                //Navigator.of(context).pushNamed(PHARMACIES_LIST);
                                Navigator.push(
                                  context,
                                  MaterialPageRoute(
                                    builder: (context) => PharmaciesListScreen(
                                        itemID: data[index]["ItemID"]),
                                  ),
                                );
                              },
                            );
                          },
                        ),
                      ),
                    ),
                  ],
                ))));
  }

  searchMedicine(context, MedicineProvider medicineProvider) {
    FocusScope.of(context).unfocus();

    if (myController.text.isNullOrEmpty()) {
      this.setState(() {
        data = null;
      });
      helpers.showErrorToast("Type Medicine Name");
      return;
    }
    _medicineModel.PHR_itemName = myController.text;
    medicineProvider.getMedicineItem(_medicineModel).then((res) {
      if (res['MessageStatus'] == 1) {
        print("ListMedicine " + res['ListPharmcy'].toString());
        this.setState(() {
          data = res['ListPharmcy'];
        });
        //Navigator.of(context).pushNamed(PHARMACIES_LIST);
      } else {
        // handel error
        this.setState(() {
          data = null;
        });
        widget.showCenterShortLoadingToast("watting");
        helpers.showErrorToast(res['ErrorEndUserMessage']);
      }
      // Navigator.of(context).pushNamed(HOME);
    }).catchError((err) {
      print('$err');
      this.setState(() {
        data = null;
      });
      helpers.showErrorToast();
    });
  }
}