// TODO: split into smaller commands
public async Task ExecuteAsync(CancellationToken cancellationToken)
{
var settings = LoadSettings();
var url = settings.Url;
var targetPath = Path.Combine(FileHelper.GetApplicationDataPath(), "altbau.xhtml");
var webpage = await WebsiteDownloader.GetWebsiteOrNullWithPolicyAndLoggingAsync(url, targetPath, cancellationToken);
if (webpage == null)
{
return;
}
if (File.Exists(targetPath))
{
var cachedWebpage = await HtmlDocumentFactory.FromFileAsync(targetPath, cancellationToken);
var areEqual = HtmlDocumentComparer.Equals(webpage, cachedWebpage);
if (areEqual)
{
Log.Information("Website has not changed");
return;
}
NotifyHelper.ShowNotificationThatWebsiteHasChanged("Website has changed", url);
Log.Information("Parsing altbau wohnungen document.");
var offers = AltbauWohnungenParser.ParseAltbauWohnungenDocumentWithLogging(webpage).ToArray();
Log.Information($"Found {offers.Length} offers.");
var interestingOffers = AltbauWohnungenFilter.Filter(offers).ToArray();
Log.Information($"Found {interestingOffers.Length} interesting offers.");
var postedHrefsFilePath = Path.Combine(FileHelper.GetApplicationDataPath(), "hrefs.txt");
var newOffers = interestingOffers.FilterNewOffers(postedHrefsFilePath).ToArray();
Log.Information($"Found {newOffers.Length} new and interesting offers.");
//if (!SettingsManager.IsFirstRun)
//{
await RegisterForOffersAndInformUserAsync(settings, newOffers, cancellationToken);
//}
//SettingsManager.IsFirstRun = false;
Log.Information("Saving lines in file.");
var lines = newOffers.Select(o => o.Href);
await FileHelper.CreateFileIfNotExistsAndAppendLinesToFileAsync(postedHrefsFilePath, lines);
File.Delete(targetPath);
}
await webpage.SaveHtmlDocumentToFileWithLoggingAsync(targetPath, cancellationToken);
}
public void MustThrowInvalidOperationExceptionWhenSettingsIsNotYetSet()
{
var settingsManager = new SettingsManager();
var infos = new []
{
An.AltbauWohnungInfo()
};
var filter = new AltbauWohnungenFilter(settingsManager);
Assert.That(() => filter.Filter(infos), Throws.InvalidOperationException);
}
public void MustFilterResults()
{
var settingsManager = An.SettingsManager();
settingsManager.Settings = An.Settings();
var info1 = An.AltbauWohnungInfo();
var info2 = An.AltbauWohnungInfo2();
var infos = new[]
{
info1,
info2,
info1
};
var filter = new AltbauWohnungenFilter(settingsManager);
var result = filter.Filter(infos);
Assert.That(result, Is.Not.Null, "result was null");
Assert.That(result.Count(), Is.EqualTo(1), "result was not properly filtered");
Assert.That(result.First(), Is.EqualTo(info2));
}
