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@@ -90,52 +90,36 @@
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}
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/**
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Append new articles and increment their sortIndex. Update unread counter on the way.
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Append new articles and increment @c sortIndex and unread count.
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New articles are in ascending order without any gaps in between.
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@note
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New articles should be in ascending order without any gaps in between.
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If new article is disjunct from the article before, assume a deleted article re-appeared and mark it as read.
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@param localSet Use result set @c localSet of method call @c deleteArticles:withRemoteSet:.
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@param remoteSet Readonly copy of @c RSParsedFeed.articles.
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@param localSet Use result set of @c deleteArticles:withRemoteSet:
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*/
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- (NSUInteger)insertArticles:(NSMutableSet<FeedArticle*>*)localSet withRemoteSet:(NSArray<RSParsedArticle*>*)remoteSet {
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int32_t currentIndex = [[localSet valueForKeyPath:@"@min.sortIndex"] intValue];
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NSMutableArray<FeedArticle*>* newlyInserted = [NSMutableArray arrayWithCapacity:remoteSet.count];
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NSUInteger c = 0;
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for (RSParsedArticle *article in [remoteSet reverseObjectEnumerator]) {
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// reverse enumeration ensures correct article order
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FeedArticle *storedArticle = [self findRemoteArticle:article inLocalSet:localSet];
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if (storedArticle) {
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// TODO: stop bullshitting with ghost articles
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[localSet removeObject:storedArticle];
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// If we encounter an already existing item, assume newly inserted are "ghost" items and mark read.
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if (newlyInserted.count > 0) {
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for (FeedArticle *ghostItem in newlyInserted) {
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ghostItem.unread = NO;
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}
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[newlyInserted removeAllObjects];
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}
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// Ensures consecutive block of incrementing numbers on sortIndex
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if (storedArticle.sortIndex != currentIndex) {
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storedArticle.sortIndex = currentIndex;
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}
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// Reverse enumeration ensures correct article order
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FeedArticle *stored = [self findRemoteArticle:article inLocalSet:localSet];
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if (stored) {
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[localSet removeObject:stored];
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if (stored.sortIndex != currentIndex)
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stored.sortIndex = currentIndex; // Ensures block of ascending indices
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} else {
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FeedArticle *newArticle = [FeedArticle newArticle:article inContext:self.managedObjectContext];
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newArticle.sortIndex = currentIndex;
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[self addArticlesObject:newArticle];
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[newlyInserted addObject:newArticle];
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c += 1;
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}
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currentIndex += 1;
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}
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return newlyInserted.count; // all ghost items are removed already
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return c;
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}
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/**
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Delete all articles from core data, that aren't present anymore.
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@param localSet Input a copy of @c self.articles. Output the same set minus deleted articles.
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@param remoteSet Readonly copy of @c RSParsedFeed.articles.
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@param localSet Input a copy of @c self.articles . Output same set minus deleted articles.
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*/
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- (NSUInteger)deleteArticles:(NSMutableSet<FeedArticle*>*)localSet withRemoteSet:(NSArray<RSParsedArticle*>*)remoteSet {
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NSUInteger c = 0;
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