public void LoadState(BackgroundFetcherState state)
{
if (state.LastRequested is DateTimeOffset lastRequested)
{
this.LastRequested = state.LastRequested;
}
if (state.LastUpdated is DateTimeOffset updated && state.Rates is List <BackgroundFetcherRate> rates)
{
var fetch = new LatestFetch()
{
Latest = rates.Select(r => new PairRate(r.Pair, r.BidAsk)).ToArray(),
Updated = updated,
NextRefresh = updated + RefreshRate,
Expiration = updated + ValidatyTime
};
_Latest = fetch;
}
}
public BackgroundFetcherState GetState()
{
var state = new BackgroundFetcherState()
{
LastRequested = LastRequested
};
if (_Latest is LatestFetch fetch && fetch.Latest is not null)
{
state.LastUpdated = fetch.Updated;
state.Rates = fetch.Latest
.Select(r => new BackgroundFetcherRate()
{
Pair = r.CurrencyPair,
BidAsk = r.BidAsk
}).ToList();
}
return(state);
}
public BackgroundFetcherState GetState()
{
var state = new BackgroundFetcherState()
{
ExchangeName = ExchangeName,
LastRequested = LastRequested
};
if (_Latest is LatestFetch fetch)
{
state.LastUpdated = fetch.Updated;
state.Rates = fetch.Latest
.Where(e => e.Exchange == ExchangeName)
.Select(r => new BackgroundFetcherRate()
{
Pair = r.CurrencyPair,
BidAsk = r.BidAsk
}).ToList();
}
return(state);
}
public void LoadState(BackgroundFetcherState state)
{
if (ExchangeName != state.ExchangeName)
{
throw new InvalidOperationException("The state does not belong to this fetcher");
}
if (state.LastRequested is DateTimeOffset lastRequested)
{
this.LastRequested = state.LastRequested;
}
if (state.LastUpdated is DateTimeOffset updated && state.Rates is List <BackgroundFetcherRate> rates)
{
var fetch = new LatestFetch()
{
Latest = rates.Select(r => new PairRate(r.Pair, r.BidAsk)).ToArray(),
Updated = updated,
NextRefresh = updated + RefreshRate,
Expiration = updated + ValidatyTime
};
_Latest = fetch;
}
}