public async Task <IResponseContainerWithValue <IReadOnlyList <ConnectorCreationSuggestion> > > AllocateAsync(int chargeStationId, decimal maxCurrentInAmps)
{
IResponseContainerWithValue <IReadOnlyList <ConnectorCreationSuggestion> > result;
var group = await groupRepository.GetByChargeStationIdAsync(chargeStationId);
var createConnectorSuggestions = new List <ConnectorCreationSuggestion>();
if (group.CapacityInAmps < maxCurrentInAmps)
{
result = new ResponseContainerWithValue <IReadOnlyList <ConnectorCreationSuggestion> >();
result.AddErrorMessage($"Max current {maxCurrentInAmps} provided exceeds group's {group.Name} capacity.");
return(result);
}
var occupiedCapacity = group.GetOccupiedCapacity();
if (!group.WillBecomeOvercapped(occupiedCapacity, maxCurrentInAmps))
{
return new ResponseContainerWithValue <IReadOnlyList <ConnectorCreationSuggestion> > {
Value = createConnectorSuggestions
}
}
;
var connectors = await connectorRepository.GetAllInGroupByChargeStationIdAsync(chargeStationId);
var suggestions = GetUniqueSuggestions(group, connectors, occupiedCapacity, maxCurrentInAmps);
var suggestionCombinations = GetIndexesCombinations(suggestions, connectors);
suggestions.AddRange(suggestionCombinations);
if (!suggestions.Any())
{
result = new ResponseContainerWithValue <IReadOnlyList <ConnectorCreationSuggestion> >();
result.AddErrorMessage($"No suggestion could be made to free exact amount of space for the {nameof(chargeStationId)}={chargeStationId} and {nameof(maxCurrentInAmps)}={maxCurrentInAmps}.");
}
else
{
createConnectorSuggestions.AddRange(suggestions.Select(s => Suggestion.ToConnectorCreationSuggestion(s, connectors)));
result = new ResponseContainerWithValue <IReadOnlyList <ConnectorCreationSuggestion> > {
Value = createConnectorSuggestions
};
}
return(result);
}
