public async void Initialize()
{
MarketTimeConverter market = new MarketTimeConverter();
LocalStorageService storage = new LocalStorageService();
DateTime LastWrite = DateTime.UtcNow.AddHours(8);
var exists = await storage.FileExists();
StockServices services = new StockServices();
string jsonStocks = "";
if (exists)
{
try
{
jsonStocks = await services.GetStringJson();
var root = JsonConvert.DeserializeObject <StockRoot>(jsonStocks);
var LastServerUpdate = root.LastUpdate;
LastWrite = await storage.GetLastWrite();
if (LastServerUpdate > LastWrite) //check if data server is updated
{
await storage.WriteText(jsonStocks);
}
}
catch (Exception)
{
return;
}
}
else //write the file automatically
{
jsonStocks = await services.GetStringJson();
var root = JsonConvert.DeserializeObject <StockRoot>(jsonStocks);
await storage.WriteText(jsonStocks);
}
}
public async Task <List <Stock> > GetLocalList()
{
List <Stock> stockList = new List <Stock>();
LocalStorageService storage = new LocalStorageService();
try
{
var result = await storage.ReadText();
StockRoot stockRoot = JsonConvert
.DeserializeObject <StockRoot>(result);
stockList = new List <Stock>(stockRoot.Stock);
foreach (var item in stockList)
{
item.LastUpdated = stockRoot.LastUpdate;
}
}
catch (Exception e)
{
throw;
}
return(stockList);
}
