private async Task <List <string> > ExtractConversionCurrencies()
{
Debug.WriteLine("Starting conversion group => " + _conversionsGroup);
if (_conversionsGroup == null)
{
_conversionsGroup = GetLatestConversionGroup();
}
Debug.WriteLine("Database conversion group => " + _conversionsGroup);
if (_conversionsGroup != null && IsConversionGroupUpToDate(_conversionsGroup))
{
return(GenerateConversionCurrencies(_conversionsGroup));
}
var providedGroup = await _conversionGroupProvider.ProvideConversionGroup();
if (providedGroup == null)
{
return(GenerateConversionCurrencies(_conversionsGroup));
}
_conversionsGroup = providedGroup;
Debug.WriteLine("Online conversion group => " + _conversionsGroup);
AddNewestConversionGroup(providedGroup);
return(GenerateConversionCurrencies(_conversionsGroup));
}
private ConversionsGroup ConvertToLocalConversionsGroup(
NetConversionGroup netConversionGroup)
{
if (netConversionGroup == null)
{
return(null);
}
var group = new ConversionsGroup
{
Id = Guid.NewGuid().ToString(),
BaseConversionName = netConversionGroup.@base,
Date = DateTimeOffset.Now
};
var rates = netConversionGroup.rates;
foreach (PropertyInfo convRate in typeof(Rates).GetProperties())
{
var value = (double)convRate.GetValue(rates, null);
var name = convRate.Name;
group.ConversionRates.Add(new ConversionRate
{
Id = Guid.NewGuid().ToString(),
BaseConversionRate = value,
ConversionName = name
});
}
return(group);
}
private void AddNewestConversionGroup(ConversionsGroup conversionsGroup)
{
Ensure.That(conversionsGroup).IsNotNull();
_dataOperationService.RunTransactionOperation(operation =>
{
var groupRepo = operation.ConversionsGroupRepository;
groupRepo.Insert(conversionsGroup);
});
}
private ConversionsGroup GetLatestConversionGroup()
{
Debug.WriteLine("Getting latest conversion group");
ConversionsGroup group = null;
_dataOperationService.RunOperation(operation =>
{
var groupRepo = operation.ConversionsGroupRepository;
group = groupRepo.FindLatest(-1);
Debug.WriteLine("Found latest => " + group);
});
return(group);
}
public void Insert(ConversionsGroup conversionsGroup)
{
var mapperConfig =
new MapperConfiguration(cfg =>
{
cfg.CreateMap <ConversionsGroup, SqliteConversionGroup>();
cfg.CreateMap <ConversionRate, SqliteConversionRate>();
});
IMapper mapper = new Mapper(mapperConfig);
var sqliteGroup = mapper.Map <SqliteConversionGroup>(conversionsGroup);
var sqliteRates = mapper.Map <IList <ConversionRate>, List <SqliteConversionRate> >(conversionsGroup.ConversionRates);
sqliteRates.ForEach(it => it.ConversionGroupId = conversionsGroup.Id);
Database.Insert(sqliteGroup);
new ConversionRateDatabaseHelper().InsertRates(sqliteRates, Database);
}
public void Insert(ConversionsGroup conversionsGroup)
{
_realm.Add(conversionsGroup.DeepClone(-1));
}
private bool IsConversionGroupUpToDate(ConversionsGroup group)
{
Ensure.That(group).IsNotNull();
//This checks if this is the same day, no point querying multiple times a day
return(group.Date.Date == DateTimeOffset.Now.Date);
}
private static List <string> GenerateConversionCurrencies(ConversionsGroup group)
{
return(@group == null
? new List <string>()
: @group.ConversionRates.Select(c => c.ConversionName).ToList());
}
