/// <summary>
/// Get a single day of solar altitude data entries
/// </summary>
/// <param name="date">The date for which data is desired</param>
/// <param name="city">City for calculation</param>
/// <param name="state">State for calculation</param>
/// <returns></returns>
public UsNavalSolarAltitudeGreaterThan50DegDailyEntry GetOneDay(DateTime date, string city, string state)
{
var requestUri = string.Format(UriPattern, date.Year, date.Month, date.Day, Interval, state, city);
var retriesLeft = 3;
string body = null;
// try a few times (if necessary) to get a response body
while (retriesLeft > 0)
{
body = _requestHelper.GetResponseBodyForUri(new Uri(requestUri));
if (body != null)
{
break;
}
retriesLeft--;
Thread.Sleep(SingleEntryRetryDelay);
}
// If no body was ever found, time to move on
if (body == null)
{
return(null);
}
var entry = new UsNavalSolarAltitudeGreaterThan50DegDailyEntry
{
EntryDate = date
};
// dig through the result for data lines
foreach (Match match in _lineParseRegex.Matches(body))
{
var timeOffset = ParseTimeOffset(match.Groups["time"].Value);
var altitude = ParseAltitude(match.Groups["alt"].Value);
// for when no begin time set
if (altitude >= 50 && entry.BeginOffset == TimeSpan.Zero)
{
entry.BeginOffset = timeOffset;
continue;
}
// for when no end time set
if (altitude < 50 && entry.BeginOffset > TimeSpan.Zero && entry.EndOffset == TimeSpan.Zero)
{
entry.EndOffset = timeOffset;
}
}
return(entry);
}