public TemperatureChartZoneModel[] GetTemperatureChartZones(TimeSpan period)
{
TimeSpan extendedPeriod = period.Add(TimeSpan.FromHours(6));
IEnumerable <DeviceStateLogRecord> states = _service.GetDeviceStateLog(extendedPeriod, Devices.Cooler, Devices.Heater);
var zones = new List <TemperatureChartZoneModel>();
foreach (var statesByDevice in states.Reverse().GroupBy(state => state.Device))
{
ZoneFormatBase format = ZoneFormatBase.GetFormat(statesByDevice.Key);
var zonesByDevice = new List <TemperatureChartZoneModel>();
IEnumerable <DeviceStateLogRecord> uniqueConsecutiveStatesByDevice = getUniqueConsecutiveRecords(statesByDevice);
foreach (DeviceStateLogRecord stateRecord in uniqueConsecutiveStatesByDevice)
{
if (stateRecord.State == DeviceStates.Off && zonesByDevice.Count == 0)
{
continue;
}
zonesByDevice.Add(createZone(stateRecord, format));
}
// add format to infinite timespan if device is still switched on
if (statesByDevice.Last().State == DeviceStates.On)
{
var recordToPresent = new DeviceStateLogRecord(DateTime.MinValue, statesByDevice.Key, DeviceStates.Off);
zonesByDevice.Add(createZone(recordToPresent, format));
}
zones.AddRange(zonesByDevice);
}
return(zones.OrderBy(zone => zone.Value.GetValueOrDefault(long.MaxValue)).ToArray());
}
private static TemperatureChartZoneModel createZone(DeviceStateLogRecord logRecord, ZoneFormatBase format)
{
return(new TemperatureChartZoneModel
{
Value = logRecord.DateTime == DateTime.MinValue ? (long?)null : logRecord.DateTime.ToUnixTimeMilliseconds(),
Color = format.GetColor(logRecord.State),
DashStyle = format.GetDashStyle(logRecord.State)
});
}