public void Fetch()
{
TimeRunner.Run(async(time, th) =>
{
var downloader = new FakeElexonDownloader();
var dir = new FakeDirectory(th);
var fetcher = new FetchB1610(th, downloader, dir, time, null);
var cts = new CancellationTokenSource();
Task unused = th.Run(async() =>
{
await th.Delay(NodaTime.Duration.FromMinutes(5)).ConfigureAwait(th);
cts.Cancel();
});
await fetcher.Start(cts.Token).ConfigureAwaitHideCancel(th);
var reader = new B1610.Reader(th, dir);
Assert.Equal(100 + 103, await reader.CountAsync().ConfigureAwait(th));
Assert.Equal(new B1610.Data("GRAI-6", Instant.FromUtc(2017, 7, 31, 23, 0), Power.FromKilowatts(226_200)),
await(await reader.ReadAsync(0, 1)).First());
Assert.Equal(new B1610.Data("GRGBW-1", Instant.FromUtc(2017, 7, 31, 23, 30), Power.FromKilowatts(43_390)),
await(await reader.ReadAsync(100 + 103 - 1, 100 + 103)).First());
}, startInstant: NodaTime.Instant.FromUtc(2017, 8, 10, 22, 30));
}
static async Task <int> ShowB1610(ShowB1610Options opts)
{
var taskHelper = SystemTaskHelper.Instance;
var dir = new SystemDirectory(taskHelper, opts.DataDirectory);
var reader = new B1610.Reader(taskHelper, dir);
var count = opts.Count;
var totalCount = (int)await reader.CountAsync();
Console.WriteLine($"B1610 data count: {totalCount}");
Console.WriteLine($"Latest {count} data readings:");
var data = await reader.ReadAsync(totalCount - count, totalCount);
data.ForEach(r => Console.WriteLine(r));
return(0);
}
private async Task Start0(CancellationToken ct)
{
while (true)
{
int count = (int)await _reader.CountAsync().ConfigureAwait(_taskHelper);
var items = await(await _reader.ReadAsync(count - 500, ct: ct).ConfigureAwait(_taskHelper)).ToList().ConfigureAwait(_taskHelper);
var lastTime = items.Any() ? items.Max(x => x.SettlementPeriodStart) : _time.GetCurrentInstant() - Duration.FromDays(10);
var fetchTime = lastTime + Duration.FromMinutes(30);
var data = await _b1610.GetAsync(fetchTime.SettlementDate(), fetchTime.SettlementPeriod(), ct).ConfigureAwait(_taskHelper);
if (data.Count == 0)
{
await _scheduler.ScheduleOne(Duration.FromMinutes(30), Duration.FromMinutes(2.5), ct).ConfigureAwait(_taskHelper);
}
else
{
await _writer.AppendAsync(data, ct).ConfigureAwait(_taskHelper);
await _scheduler.ScheduleOne(Duration.FromMinutes(5), Duration.FromMinutes(2.5), ct).ConfigureAwait(_taskHelper);
}
}
}