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

import 'dart:convert';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:http/http.dart';
import 'package:test_sa/api/gas_refill_api_client.dart';

import '../../../models/gas_refill/gas_refill_model.dart';
import '../../../models/user.dart';
import '../../api_routes/urls.dart';
import '../../http_status_manger/http_status_manger.dart';
import '../../localization/localization.dart';
import '../loading_notifier.dart';

class GasRefillProvider extends LoadingNotifier {
  // number of items call in each request
  final pageItemNumber = 50;

  //reset provider data
  void reset() {
    items.clear();
    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<GasRefillModel> items = [];

  Future getRequests() async {
    waitApiRequest(() async {
      items.clear();
      items.addAll(await GasRefillApiClient().getRequestPages(items: items, pageItemNumber: pageItemNumber));
      notifyListeners();
      if (items.length == pageItemNumber) {
        nextPage = true;
      } else {
        nextPage = false;
      }
    }, onSuccess: () {
      stateCode = 200;
      notifyListeners();
    });
  }

  Future createModel({required GasRefillModel model, required BuildContext context}) async {
    final subtitle = AppLocalization.of(context)?.subtitle;

    waitApiRequest(() async {
      items.insert(0, await GasRefillApiClient().createModel(model: model));
      notifyListeners();
    }, onError: (error) {
      String errorMessage = HttpStatusManger.getStatusMessage(status: error.error?.errorCode, subtitle: subtitle);
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(
        content: Text(errorMessage),
      ));
    }, onSuccess: () {
      Fluttertoast.showToast(
        msg: subtitle?.requestCompleteSuccessfully ?? "",
      );
      Navigator.of(context).pop();
    });
  }

  Future updateModel({
    required GasRefillModel? oldModel,
    required GasRefillModel newModel,
  }) async {
    await GasRefillApiClient().updateModel(oldModel: oldModel, newModel: newModel);
  }
}