public static bool GetLatest()
{
if (latestRatesFromApi == null)
{
latestRatesFromApi = GetLatestRatesFromApi();
}
return(latestRatesFromApi != null);
}
private static bool DoesRatesFileExist(ConventerInfo conventerInfo)
{
var path = GetRatesFilePath(conventerInfo);
if (!File.Exists(path))
{
return(false);
}
var fileData = File.ReadAllText(path);
return(System.Text.Json.JsonSerializer.Deserialize <ConventerInfo>(fileData) == conventerInfo);
}
public static void SaveIntoFile(ConventerInfo conventerInfo)
{
if (!Directory.Exists(ratesPath))
{
try
{
Directory.CreateDirectory(ratesPath);
LogMessage(String.Format("Created directory for files with rates: {0}", Path.GetFullPath(ratesPath)));
}
catch (Exception ex)
{
lastErrorMessage = String.Format("Failed creating directory ({0}): {1}", Path.GetFullPath(ratesPath), ex.Message);
LogMessage(LastErrorMessage);
return;
}
}
var path = GetRatesFilePath(conventerInfo);
if (File.Exists(path))
{
LogMessage(String.Format("File with rates ({0}) already exists. Overwriting.", Path.GetFullPath(path)));
}
using (var writer = File.CreateText(path))
{
try
{
writer.Write(System.Text.Json.JsonSerializer.Serialize(conventerInfo));
}
catch (Exception ex)
{
lastErrorMessage = String.Format("Failed saving ({0}): {1}", Path.GetFullPath(path), ex.Message);
LogMessage(lastErrorMessage);
return;
}
}
LogMessage(String.Format("Saved file with rates: " + Path.GetFullPath(path)));
}
private static string GetRatesFilePath(ConventerInfo conventerInfo)
{
return(Path.Combine(ratesPath, baseCurrency + conventerInfo.date.ToShortDateString() + ".json"));
}