PatientApp-KKUMC/lib/pages/BookAppointment/components/SearchByClinic.dart

import 'dart:convert';

import 'package:diplomaticquarterapp/models/Appointments/DoctorListResponse.dart';
import 'package:diplomaticquarterapp/models/Clinics/ClinicListResponse.dart';
import 'package:diplomaticquarterapp/services/appointment_services/GetDoctorsList.dart';
import 'package:diplomaticquarterapp/services/clinic_services/get_clinic_service.dart';
import 'package:diplomaticquarterapp/services/robo_search/event_provider.dart';
import 'package:diplomaticquarterapp/services/robo_search/search_provider.dart';
import 'package:diplomaticquarterapp/uitl/app_toast.dart';
import 'package:diplomaticquarterapp/uitl/translations_delegate_base.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../SearchResults.dart';

class SearchByClinic extends StatefulWidget {
  @override
  _SearchByClinicState createState() => _SearchByClinicState();
}

class _SearchByClinicState extends State<SearchByClinic> {
  bool nearestAppo = false;
  String dropdownValue;
  var event = RobotProvider();
  List<ListClinicCentralized> clinicsList = [];

  @override
  void initState() {
    WidgetsBinding.instance.addPostFrameCallback((_) => getClinicsList());

    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    event.controller.stream.listen((p) {
      if (p['Id'] != null) {
        setState(() {
          dropdownValue = p['Id'];
          getDoctorsList(context);
        });
      }
    });
    return Container(
      margin: EdgeInsets.all(10.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          Row(
            children: <Widget>[
              Checkbox(
                activeColor: new Color(0xFFc5272d),
                value: nearestAppo,
                onChanged: (bool value) {
                  setState(() {
                    nearestAppo = value;
                  });
                },
              ),
              Text(TranslationBase.of(context).nearestAppo,
                  style: TextStyle(fontSize: 16.0, letterSpacing: 0.9)),
            ],
          ),
          Container(
              height: 60.0,
              decoration: BoxDecoration(
                color: Colors.white,
                border: Border.all(
                  color: Colors.grey[400],
                  width: 1.0,
                ),
                borderRadius: BorderRadius.circular(10),
              ),
              // margin: EdgeInsets.fromLTRB(10.0, 20.0, 10.0, 20.0),
              padding: EdgeInsets.all(8.0),
              width: MediaQuery.of(context).size.width,
              child: DropdownButtonHideUnderline(
                child: DropdownButton<String>(
                  hint: new Text("Select Clinic"),
                  value: dropdownValue,
                  items: clinicsList.map((item) {
                    return new DropdownMenuItem<String>(
                      value: item.clinicID.toString(),
                      child: new Text(item.clinicDescription),
                    );
                  }).toList(),
                  onChanged: (newValue) {
                    setState(() {
                      dropdownValue = newValue;

                      getDoctorsList(context);
                    });
                  },
                ),
              )),
        ],
      ),
    );
  }

  getClinicsList() {
    ClinicListService service = new ClinicListService();
    service.getClinicsList(context).then((res) {
      if (res['MessageStatus'] == 1) {
        setState(() {
          res['ListClinicCentralized'].forEach((v) {
            clinicsList.add(new ListClinicCentralized.fromJson(v));
          });
        });
      } else {}
    }).catchError((err) {
      print(err);
    });
  }

  getDoctorsList(BuildContext context) {
    List<DoctorList> doctorsList = [];
    DoctorsListService service = new DoctorsListService();
    service.getDoctorsList(int.parse(dropdownValue), 0, context).then((res) {
      if (res['MessageStatus'] == 1) {
        setState(() {
          if (res['DoctorList'].length != 0) {
            doctorsList.clear();
            res['DoctorList'].forEach((v) {
              doctorsList.add(new DoctorList.fromJson(v));
            });
          } else {}
        });
        navigateToSearchResults(context, doctorsList);
      } else {
        AppToast.showErrorToast(message: res['ErrorEndUserMessage']);
      }
    }).catchError((err) {
      print(err);
    });
  }

  Future navigateToSearchResults(context, docList) async {
    Navigator.push(
        context,
        MaterialPageRoute(
            builder: (context) => SearchResults(doctorsList: docList)));
  }
}