void FetchButton_Click(object sender, EventArgs eventArgs)
{
var fromWeek = scrobbleData == null ? DateTime.MinValue : scrobbleData.LastWeekFetched;
if (scrobbleData != null && UsernameText.Text != scrobbleData.Account)
{
if (MessageBox.Show(this,
string.Format("Username '{0}' doesn't match the Last.fm account whose scrobbles were last fetched ('{1}').\nFetching from account '{0}' will clear currently loaded data and start over from scratch.\n\nContinue?",
UsernameText.Text, scrobbleData.Account),
"Username mismatch", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
{
return;
}
else
{
scrobbleData = null;
}
}
TaskUtil.PerformForegroundTask(this, fetcher.FetchAsync(UsernameText.Text, fromWeek), result =>
{
if (result.Errors.Count() > 0)
{
new ErrorReporter(result.Errors)
{
AlternateTaskName = "fetching the user's scrobbles.", AlternateItemName = "Weekly chart"
}
}
.ShowDialog();
if (scrobbleData == null)
{
scrobbleData = new ScrobbleArchive {
Scrobbles = result.Scrobbles, Account = UsernameText.Text
};
ExportMenuItem.Enabled = true;
}
else
{
// merge scrobbles
var currentScrobbleSet = new Dictionary <ScrobbledTrack, ScrobbledTrack>(scrobbleData.Scrobbles.Count);
foreach (var scrobble in scrobbleData.Scrobbles)
{
currentScrobbleSet.Add(scrobble, scrobble);
}
foreach (var fetchedScrobble in result.Scrobbles)
{
ScrobbledTrack currentScrobble;
if (currentScrobbleSet.TryGetValue(fetchedScrobble, out currentScrobble))
{
currentScrobble.PlayCount += fetchedScrobble.PlayCount;
if (currentScrobble.WeekLastPlayed < fetchedScrobble.WeekLastPlayed)
{
currentScrobble.WeekLastPlayed = fetchedScrobble.WeekLastPlayed;
}
}
else
{
scrobbleData.Scrobbles.Add(fetchedScrobble);
}
}
}
scrobbleData.LastWeekFetched = result.LastWeekFetched;
TracksView.DataSource = new ScrobbledTrackBindingList(scrobbleData.Scrobbles);
MapToWmpButton.Enabled = hasWmp;
MapToITunesButton.Enabled = hasiTunes;
},