cloudsolutions-atoms/lib/controllers/providers/api/service_requests_provider.dart

import 'dart:convert';

import 'package:flutter/cupertino.dart';
import 'package:http/http.dart';
import 'package:test_sa/controllers/api_routes/api_manager.dart';
import 'package:test_sa/controllers/api_routes/http_status_manger.dart';
import 'package:test_sa/controllers/api_routes/urls.dart';
import 'package:test_sa/models/issue.dart';
import 'package:test_sa/models/lookup.dart';
import 'package:test_sa/models/service_report.dart';
import 'package:test_sa/models/service_request/service_request.dart';
import 'package:test_sa/models/service_request/service_request_search.dart';
import 'package:test_sa/models/subtitle.dart';
import 'package:test_sa/models/timer_model.dart';
import 'package:test_sa/models/user.dart';

class ServiceRequestsProvider extends ChangeNotifier{

  // number of items call in each request
  final pageItemNumber = 50;

  //reset provider data
  void reset(){
    serviceRequests = null;
    nextPage = true;
    stateCode = null;
  }

  // state code of current request to defied error message
  // like 400 customer request failed
  // 500 service not available
  int stateCode;

  // true if there is next page in product list and false if not
  bool nextPage = true;

  // list of user requests
  List<ServiceRequest> serviceRequests;

  // when requests in-process _loading = true
  // done _loading = true
  // failed _loading = false
  bool isLoading;

  ServiceRequestSearch search = ServiceRequestSearch();

  /// return -2 if request in progress
  /// return -1 if error happen when sending request
  /// return state code if request complete may be 200, 404 or 403
  /// for more details check http state manager
  /// lib\controllers\http_status_manger\http_status_manger.dart
  Future<int> getRequests ({
    @required String host,
    @required User user,
    @required int hospitalId,
  }) async {
    if(isLoading == true)
      return -2;
    isLoading = true;
    if(serviceRequests == null) notifyListeners();
    Response response;
    try{
      Map<String,dynamic> body = {};
      body.addAll(search.toMap());
      body["pageNumber"] = (serviceRequests?.length ?? 0) ~/pageItemNumber + 1;
      body["pageSize"] = pageItemNumber;

      response = await ApiManager.instance.post(
        URLs.getServiceRequests,
        body: body,
      );

      stateCode = response.statusCode;
      if(response.statusCode >= 200 && response.statusCode < 300) {
        // client's request was successfully received
        List requestsListJson = json.decode(response.body)["data"];
        List<ServiceRequest> serviceRequestsPage = requestsListJson.map(
                (request) => ServiceRequest.fromJson(request)).toList();
        serviceRequests ??= [];
        serviceRequests.addAll(serviceRequestsPage);
        if(serviceRequestsPage.length == pageItemNumber){
          nextPage = true;
        }else{
          nextPage = false;
        }
      }
      isLoading = false;
      notifyListeners();
      return response.statusCode;

    } catch(error) {
      isLoading = false;
      stateCode = -1;
      notifyListeners();
      return -1;
    }

  }

  Future<ServiceRequest> getSingleServiceRequest({
    @required String requestId,
    @required String host,
    @required User user,
    @required Subtitle subtitle,
  }) async {
    String userData = '';
    if(user != null){
      userData += "&uid="+user.id;
      userData += "&token="+user.token;
    }

    Response response;
    try{
      response = await get(
          Uri.parse(
        host+URLs.getSingleServiceRequest
            +'?call_nid=$requestId'
            '$userData',)
      );
    }catch(error){
      throw(HttpStatusManger.getStatusMessage(
          status: -1, subtitle: subtitle));
    }

    // If the call to the server was successful, parse the JSON.
    if (response.statusCode >= 200 && response.statusCode < 300){
      // If the call to the server was successful, parse the JSON.
      List jsonList = json.decode(utf8.decode(response.bodyBytes).replaceAll("\\", ""));
      List<ServiceRequest> _requests = jsonList.map((i) => ServiceRequest.fromJson(i)).toList();
      return _requests[0];
    }else{
      throw(HttpStatusManger.getStatusMessage(
          status: response.statusCode, subtitle: subtitle));
    }

  }

  Future<int> createRequest ({
    @required String host,
    @required User user,
    @required ServiceRequest serviceRequest,
  }) async {

    var body = {
      "callCreatedBy": {
        "id":user.id,
        "name":user.userName
      },
      "assets":serviceRequest.deviceId == null ? [] : [serviceRequest.deviceId],
      "requestedDate": DateTime.now().toIso8601String(),
      "requestedTime": DateTime.now().toIso8601String(),
      "client": user.hospital?.id ?? '',
      "callComments": serviceRequest.maintenanceIssue,
      "attachmentsCallRequest": serviceRequest.devicePhotos.map((e) => {"name":e}).toList(),
      "priority": serviceRequest.priority.toMap(),
      "defectType": serviceRequest.defectType.toMap(),
      "typeofRequest":serviceRequest.type.toMap(),
      "requestedThrough":serviceRequest.type.toMap(),
    };
    if(serviceRequest.audio != null){
      body["voiceNote"] = serviceRequest.audio;
    }
    Response response;
    try{
      response = await ApiManager.instance.post(
        URLs.createRequest,
        body: body
      );
      stateCode = response.statusCode;
      if(response.statusCode >= 200 && response.statusCode < 300) {
        if(serviceRequests != null)
          serviceRequests.insert(
              0,
              ServiceRequest.fromJson(
                  json.decode(utf8.decode(response.bodyBytes))[0]
              )
          );
        notifyListeners();
      }
      return response.statusCode;

    } catch(error) {
      return -1;
    }

  }

  Future<int> createIssueReport ({
    @required String host,
    @required User user,
    @required Issue issue,
  }) async {
    Response response;
    Map<String,String> body = issue.toMap();
    body["uid"] = user.id;
    body["token"] = user.token;
    try{
      response = await post(
          Uri.parse(host+URLs.createReport),
        body: body,
      );

      stateCode = response.statusCode;
      if(response.statusCode >= 200 && response.statusCode < 300) {

      }
      return response.statusCode;

    } catch(error) {
      return -1;
    }

  }

  Future<int> updateDate ({
    @required String host,
    @required User user,
    @required String newDate,
    @required Lookup employee,
    @required ServiceRequest request,
  }) async {
    Response response;
    Map<String,String> body = {};
    body["uid"] = user.id;
    body["token"] = user.token;
    body["nid"] = request.id;
    if(newDate != null) body["date"] = newDate;
    if(employee != null) body["ass_emp"] = employee.id.toString();
    try{
      response = await post(
          Uri.parse(
        //host+
            URLs.updateRequestDate
          ),
        body: body,
      );
      stateCode = response.statusCode;
      if(response.statusCode >= 200 && response.statusCode < 300) {
        request.engineerName = employee.name;
        notifyListeners();
      }
      return response.statusCode;

    } catch(error) {
      return -1;
    }

  }

  Future<int> createServiceReport ({
    @required String host,
    @required User user,
    @required ServiceReport report,
    @required ServiceRequest request,
  }) async {
    Response response;

    try{
      Map<String,dynamic> body = report.toMap(request);
      // body["uid"] = user.id;
      // body["token"] = user.token;
      response = await ApiManager.instance.post(
          URLs.createServiceReport,
          body: body
      );
      // response = await post(
      //     Uri.parse(
      //   host+URLs.createServiceReport),
      //   body: body,
      // );

      stateCode = response.statusCode;
      if(response.statusCode >= 200 && response.statusCode < 300) {
        reset();
        notifyListeners();
      }
      return response.statusCode;

    } catch(error) {
      return -1;
    }

  }

  Future<int> createDuplicatedReport ({
    @required String host,
    @required User user,
    @required ServiceRequest request,
  }) async {
    Response response;
    String userData = '';
    if(user != null){
      userData += "&uid="+user.id;
      userData += "&token="+user.token;
    }

    try{
      response = await get(
        Uri.parse(
            host+URLs.createDuplicatedReport
                +"?nid=${request.id}"
                +userData),
      );

      stateCode = response.statusCode;

      if(response.statusCode >= 200 && response.statusCode < 300) {
        reset();
        notifyListeners();
      }
      return response.statusCode;

    } catch(error) {

      return -1;
    }

  }

  Future<int> updateServiceReport ({
    @required String host,
    @required User user,
    @required ServiceReport report,
    @required ServiceRequest request,
  }) async {
    Response response;
    //Map<String,dynamic> body = report.toMap(request);
    // body["uid"] = user.id;
    // body["token"] = user.token;
    // body["job_id"] = request.id;
    // body["report_id"] = request.reportID;
    try{
      Map<String,dynamic> body = report.toMap(request);
      // body["uid"] = user.id;
      // body["token"] = user.token;
      response = await ApiManager.instance.put(
          URLs.updateServiceReport,
          body: body
      );
      // response = await post(
      //   Uri.parse(
      //       host+URLs.updateServiceReport),
      //   body: body,
      // );
      // stateCode = response.statusCode;

      if(response.statusCode >= 200 && response.statusCode < 300) {
        reset();
        notifyListeners();
      }
      return response.statusCode;

    } catch(error) {
      return -1;
    }

  }

  Future<int> updateServiceReportTimer ({
    @required String host,
    @required User user,
    @required TimerModel timer,
    @required ServiceRequest request,
  }) async {
    Response response;
    Map<String,dynamic> body = {};
    body["uid"] = user.id;
    body["token"] = user.token;
    body["job_id"] = request.id;
    body["start_time"] = (timer.startAt.millisecondsSinceEpoch / 1000).toStringAsFixed(0);
    body["end_time"] =  (timer.endAt.millisecondsSinceEpoch / 1000).toStringAsFixed(0);
    body["working_hours"] = (timer.durationInSecond / 60 / 60).toStringAsFixed(5);
    body["report_id"] = request.reportID;
    try{
      response = await post(
        Uri.parse(
            host+URLs.updateServiceReport),
        body: body,
      );
      //stateCode = response.statusCode;

      if(response.statusCode >= 200 && response.statusCode < 300) {
        // reset();
        // notifyListeners();
      }
      return response.statusCode;

    } catch(error) {

      return -1;
    }

  }

  Future<ServiceReport> getSingleServiceReport({
    @required int reportId,
    @required String host,
    @required User user,
    @required Subtitle subtitle,
  }) async {

    Response response;
    try{
      response = await ApiManager.instance.get(
        URLs.getServiceReport + "?workOrderId=$reportId",
    );

    }catch(error){
      throw(HttpStatusManger.getStatusMessage(
          status: -1, subtitle: subtitle));
    }

    // If the call to the server was successful, parse the JSON.
    if (response.statusCode >= 200 && response.statusCode < 300){
      // If the call to the server was successful, parse the JSON.
      return ServiceReport.fromJson(
          json.decode(response.body)["data"],reportId);
    }else{
      throw(HttpStatusManger.getStatusMessage(
          status: response.statusCode, subtitle: subtitle));
    }

  }


}