chart_data_process

chart_data_process.dart

      /// WIdget input data
      /// ==================
      /// List of [KirkseyDeviceActivationRecord]
      List<KirkseyDeviceActivation> deviceActivations = [];

      /// unitId
      /// set as 7  for demo
      int unitId = 7;

      /// Date of selected chart
      /// set as today for demo
      DateTime date = DateTime.now();

      /// to save processed data
      Map<DateTime, double> dataMapForChart = {};

      /// ===========================================================

      /// add  mock data for [deviceActivations] to testing
      /// purpose
      /// ==========================
      for (int i = 0; i < 10; i++) {
        deviceActivations.add(
          KirkseyDeviceActivation(
            deviceType: 'Hybrid',
            groupId: 2,
            location: 'Conference Area',
            offDateTime: DateTime(2022, 06, 15, 12 - i, 15, 02),
            onDateTime: DateTime(2022, 06, 15, 12 - i, 02, 02),
            roomName: 'Conference Room',
            unitId: 7,
            timeOn: 201,
          ),
        );
      }

      /// filter out the [deviceActivations] where unitId == [unitId]
      /// in this demo unitId is set as 7
      List<KirkseyDeviceActivation> filteredDeviceActivations =
          deviceActivations
              .where((element) => element.unitId == unitId)
              .toList();

      /// filter out the [deviceActivations] where onDateTime and offDateTime are in the same day
      /// as [date] in this demo date is set as today
      List<KirkseyDeviceActivation> filteredDeviceActivationsForDate =
          filteredDeviceActivations
              .where((element) =>
                  element.onDateTime.day == date.day &&
                  element.offDateTime.day == date.day)
              .toList();

      /// Calculate DosageAchieved
      double dosageArchivedForDevice(KirkseyDeviceActivation device) {
        ///  switch for [device.deviceType]
        /// and return the dosageAchieved
        switch (device.deviceType) {
          case 'Hybrid':
            return device.timeOn * .011;
          case '2x4':
            return device.timeOn * .033;
          case '2x2':
            return device.timeOn * .022;
          default:
            return 0;
        }
      }

      /// each item in [filteredDeviceActivationsForDate] is processed to get the 
      /// dosageAchieved and added to [dataMapForChart]
      for (KirkseyDeviceActivation kirkseyDeviceActivation
          in filteredDeviceActivationsForDate) {
        /// get the dosageAchieved for each device
        /// and add it to the [dataMapForChart]
        /// with the key as [kirkseyDeviceActivation.onDateTime] and [kirkseyDeviceActivation.offDateTime]
        /// value as [dosageArchivedForDevice(kirkseyDeviceActivation)]
        /// ========================== 
        dataMapForChart[kirkseyDeviceActivation.onDateTime] =
            dataMapForChart[kirkseyDeviceActivation.offDateTime] =
                dosageArchivedForDevice(kirkseyDeviceActivation);
      }

      /// ===========================================================
      
      /// return the [dataMapForChart]
      /// for map 
      /// ==========================