public Snapshot RetrieveSnapshot(SnapshotLocation location)
{
if (string.IsNullOrEmpty(location.PotName))
{
throw new Exception("Pot name was not provided.");
}
if (location.SnapshotIndex.HasValue)
{
return(snapshotRepository.GetByIndex(location.PotName, location.SnapshotIndex.Value));
}
if (location.SnapshotDate.HasValue)
{
DateTime searchedDate = location.SnapshotDate.Value;
Snapshot snapshot = snapshotRepository.GetByExactDateTime(location.PotName, searchedDate);
if (snapshot == null && searchedDate.TimeOfDay == TimeSpan.Zero)
{
List <Snapshot> snapshots = snapshotRepository.GetByDate(location.PotName, searchedDate)
.ToList();
if (snapshots.Count == 1)
{
snapshot = snapshots[0];
}
else if (snapshots.Count > 1)
{
throw new Exception($"There are multiple snapshots that match the specified date. Pot = {location.PotName}; Date = {searchedDate}");
}
}
return(snapshot);
}
return(snapshotRepository.GetLast(location.PotName));
}
private static Snapshot GetSnapshot(this ISnapshotRepository snapshotRepository, SnapshotLocation snapshotLocation)
{
if (string.IsNullOrEmpty(snapshotLocation.PotName))
{
return(null);
}
if (snapshotLocation.SnapshotIndex.HasValue)
{
return(snapshotRepository.GetByIndex(snapshotLocation.PotName, snapshotLocation.SnapshotIndex.Value));
}
if (!snapshotLocation.SnapshotDate.HasValue)
{
return(snapshotRepository.GetLast(snapshotLocation.PotName));
}
DateTime searchedDate = snapshotLocation.SnapshotDate.Value;
Snapshot snapshot = snapshotRepository.GetByExactDateTime(snapshotLocation.PotName, searchedDate);
if (snapshot == null && searchedDate.TimeOfDay == TimeSpan.Zero)
{
List <Snapshot> snapshots = snapshotRepository.GetByDate(snapshotLocation.PotName, searchedDate)
.ToList();
if (snapshots.Count == 1)
{
snapshot = snapshots[0];
}
else if (snapshots.Count > 1)
{
throw new Exception($"There are multiple snapshots that match the specified date. Pot = {snapshotLocation.PotName}; Date = {searchedDate}");
}
}
return(snapshot);
}
public IEnumerable <Snapshot> GetLast(int count)
{
return(snapshotRepository.GetLast(count));
}
