Untitled

mail@pastecode.io avatar
unknown
kotlin
a year ago
3.7 kB
2
Indexable
Never
 Future<void> _fetchMenus(int checkServer) async {
    setState(() {
      _fetchingData = true;
    });
    var checkCache;
    final prefs = await SharedPreferences.getInstance();
    // Vou buscar o numero de menus(apenas coloco isto na shared preferences para ver ha ja ha instancias criadas ou nao)
    final int? length = prefs.getInt("length");
    // Se nao houve intancias criadas retorno false e por isso dou fetch aos menus pelo docker
    if (length == null) {
      checkCache = false;
    } else {

      getFromSharedPreferences();
      checkCache = true;
    }

    try {
      http.Response response = await http
          .get(Uri.parse('http://${MyApp.host}:${MyApp.port}/menu'), headers: {
        'Content-Type': 'application/json; charset=UTF-8'
      }).timeout(const Duration(milliseconds: 1000));

      try {
        if (response.statusCode == HttpStatus.ok) {
          final Map<String, dynamic> decodedData =
              json.decode(const Utf8Decoder().convert(response.bodyBytes));

          List<Menu> menus = [];
          List<Menu> orderedMenus = [];

          for (int i = 0; i < 5; i++) {
            var day = numberToWeekDay(i);

            if (checkServer == 1) {
              if (decodedData[day]['update'] != null) {
                var menu = Menu.fromJson(decodedData[day]['update']);
                setState(() => menu.updatedCache = true);
                menus.add(menu);
              } else {
                var menu = Menu.fromJson(decodedData[day]['original']);
                setState(() => menu.updatedCache = false);
                menus.add(Menu.fromJson(decodedData[day]['original']));
              }
            } else {
              if (decodedData[day]['update'] != null) {
                var menu = Menu.fromJson(decodedData[day]['original']);

                setState(() => menu.updatedCache = true);

                menus.add(menu);
              } else {
                var menu = Menu.fromJson(decodedData[day]['original']);
                setState(() => menu.updatedCache = false);
                menus.add(menu);
              }
            }
          }

          int currentDay = DateTime.now().weekday - 1;

          for (int i = 0; i <= 4; i++, currentDay++) {
            if (currentDay == 5) currentDay = 0;
            orderedMenus.add(menus
                .where(
                    (element) => element.weakDay == numberToWeekDay(currentDay))
                .single);
            // print( "$currentDay ${numberToWeekDay(currentDay)}");
          }

          setState(() {
            _menus = orderedMenus;
          });
        }
      } catch (ex) {
        debugPrint('Something went wrong: $ex');
      }
    } catch (ex) {
      try {
        await http.get(Uri.parse('http://${MyApp.host1}:${MyApp.port}/menu'),
            headers: {
              'Content-Type': 'application/json; charset=UTF-8'
            }).timeout(const Duration(milliseconds: 500));

        MyApp.host = MyApp.host1;
        _fetchMenus(1);
      } catch (ex) {
        try {
          await http.get(Uri.parse('http://${MyApp.host2}:${MyApp.port}/menu'),
              headers: {
                'Content-Type': 'application/json; charset=UTF-8'
              }).timeout(const Duration(milliseconds: 500));

          MyApp.host = MyApp.host2;

          _fetchMenus(1);
        } catch (ex) {
          debugPrint('Something went wrong: $ex');
        }
      }
    } finally {
      _fetchingData = false;
    }
    if (checkCache == false) {
      getFromSharedPreferences();
    }
    setState(() {
      _fetchingData = false;
    });
  }