// TODO Sync tags
private async Task SyncSet(IQuizletService api, WordList list, CancellationToken cancel)
{
Debug.Assert(list.SyncID != null, "list.SyncID != null");
Debug.Assert(list.ID != null, "list.ID != null");
if (list.SyncNeeded)
{
try {
var info = await api.FetchSetInfo(list.SyncID.Value, cancel);
// Find updates from Quizlet
var missingLocally = (from qTerm in info.Terms
where list.All(e => !SameTerm(e.Phrase, e.Translation, qTerm.Term, qTerm.Definition))
select new TranslationPair(qTerm.Term, qTerm.Definition)).ToList();
var missingRemotely = (from lTerm in list
where info.Terms.All(t => !SameTerm(lTerm.Phrase, lTerm.Translation, t.Term, t.Definition))
select new TranslationPair(lTerm.Phrase, lTerm.Translation)).ToList();
var modifiedLocally = list.SyncNeeded;
var modifiedRemotely = info.Modified > list.SyncDate || !list.SyncDate.HasValue;
if (modifiedLocally && modifiedRemotely)
{
// Merge conflict!
}
else if (modifiedRemotely)
{
// Apply deletions from Quizlet
for (int i = 0; i < missingRemotely.Count; i++)
{
var qd = missingRemotely[i];
list.Remove(e => SameTerm(e.Phrase, e.Translation, qd.Phrase, qd.Translation));
}
// Apply insertions from Quizlet
foreach (var qi in missingLocally)
{
list.Add(new WordListEntry(list, qi.Phrase, qi.Translation));
}
}
else
{
// Just push a full update of the entries to Quizlet
var set = GetSetModel(list);
// Update properties that aren't stored locally
await api.UpdateSet(set, cancel);
}
} catch (Exception e) {
OnItemError(list, e);
return;
}
}
OnItemFinished(list);
}
// TODO Sync tags
private async Task SyncSet(IQuizletService api, WordList list, CancellationToken cancel) {
Debug.Assert(list.SyncID != null, "list.SyncID != null");
Debug.Assert(list.ID != null, "list.ID != null");
if (list.SyncNeeded) {
try {
var info = await api.FetchSetInfo(list.SyncID.Value, cancel);
// Find updates from Quizlet
var missingLocally = (from qTerm in info.Terms
where list.All(e => !SameTerm(e.Phrase, e.Translation, qTerm.Term, qTerm.Definition))
select new TranslationPair(qTerm.Term, qTerm.Definition)).ToList();
var missingRemotely = (from lTerm in list
where info.Terms.All(t => !SameTerm(lTerm.Phrase, lTerm.Translation, t.Term, t.Definition))
select new TranslationPair(lTerm.Phrase, lTerm.Translation)).ToList();
var modifiedLocally = list.SyncNeeded;
var modifiedRemotely = info.Modified > list.SyncDate || !list.SyncDate.HasValue;
if (modifiedLocally && modifiedRemotely) {
// Merge conflict!
} else if (modifiedRemotely) {
// Apply deletions from Quizlet
for (int i = 0; i < missingRemotely.Count; i++) {
var qd = missingRemotely[i];
list.Remove(e => SameTerm(e.Phrase, e.Translation, qd.Phrase, qd.Translation));
}
// Apply insertions from Quizlet
foreach (var qi in missingLocally)
list.Add(new WordListEntry(list, qi.Phrase, qi.Translation));
} else {
// Just push a full update of the entries to Quizlet
var set = GetSetModel(list);
// Update properties that aren't stored locally
await api.UpdateSet(set, cancel);
}
} catch (Exception e) {
OnItemError(list, e);
return;
}
}
OnItemFinished(list);
}
