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#include "feedcontainer.h"
#include <algorithm> // stable_sort
#include <numeric> // accumulate
#include "utils.h"
namespace newsboat {
void FeedContainer::sort_feeds(const FeedSortStrategy& sort_strategy)
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
switch (sort_strategy.sm) {
case FeedSortMethod::NONE:
std::stable_sort(feeds.begin(),
feeds.end(),
[](std::shared_ptr<RssFeed> a,
std::shared_ptr<RssFeed> b) {
return a->get_order() < b->get_order();
});
break;
case FeedSortMethod::FIRST_TAG:
std::stable_sort(feeds.begin(),
feeds.end(),
[](std::shared_ptr<RssFeed> a,
std::shared_ptr<RssFeed> b) {
if (a->get_firsttag().length() == 0 ||
b->get_firsttag().length() == 0) {
return a->get_firsttag().length() >
b->get_firsttag().length();
}
return utils::strnaturalcmp(a->get_firsttag().c_str(),
b->get_firsttag().c_str()) < 0;
});
break;
case FeedSortMethod::TITLE:
std::stable_sort(feeds.begin(),
feeds.end(),
[](std::shared_ptr<RssFeed> a,
std::shared_ptr<RssFeed> b) {
return utils::strnaturalcmp(a->title().c_str(),
b->title().c_str()) < 0;
});
break;
case FeedSortMethod::ARTICLE_COUNT:
std::stable_sort(feeds.begin(),
feeds.end(),
[](std::shared_ptr<RssFeed> a,
std::shared_ptr<RssFeed> b) {
return a->total_item_count() <
b->total_item_count();
});
break;
case FeedSortMethod::UNREAD_ARTICLE_COUNT:
std::stable_sort(feeds.begin(),
feeds.end(),
[](std::shared_ptr<RssFeed> a,
std::shared_ptr<RssFeed> b) {
return a->unread_item_count() <
b->unread_item_count();
});
break;
case FeedSortMethod::LAST_UPDATED:
std::stable_sort(feeds.begin(),
feeds.end(),
[](std::shared_ptr<RssFeed> a,
std::shared_ptr<RssFeed> b) {
if (a->items().size() == 0 ||
b->items().size() == 0) {
return a->items().size() >
b->items().size();
}
auto cmp =
[](std::shared_ptr<RssItem> a,
std::shared_ptr<RssItem> b) {
return *a < *b;
};
auto& a_item =
*std::min_element(a->items().begin(),
a->items().end(),
cmp);
auto& b_item =
*std::min_element(b->items().begin(),
b->items().end(),
cmp);
return cmp(a_item, b_item);
});
break;
}
switch (sort_strategy.sd) {
case SortDirection::ASC:
std::reverse(feeds.begin(), feeds.end());
break;
case SortDirection::DESC:
break;
}
}
std::shared_ptr<RssFeed> FeedContainer::get_feed(const unsigned int pos)
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
if (pos >= feeds.size()) {
throw std::out_of_range(_("invalid feed index (bug)"));
}
std::shared_ptr<RssFeed> feed = feeds[pos];
return feed;
}
void FeedContainer::mark_all_feed_items_read(const unsigned int feed_pos)
{
const auto feed = get_feed(feed_pos);
std::lock_guard<std::mutex> lock(feed->item_mutex);
std::vector<std::shared_ptr<RssItem>>& items = feed->items();
if (items.size() > 0) {
bool notify = items[0]->feedurl() != feed->rssurl();
LOG(Level::DEBUG,
"FeedContainer::mark_all_read: notify = %s",
notify ? "yes" : "no");
for (const auto& item : items) {
item->set_unread_nowrite_notify(false, notify);
}
}
}
void FeedContainer::mark_all_feeds_read()
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
for (const auto& feed : feeds) {
feed->mark_all_items_read();
}
}
void FeedContainer::add_feed(const std::shared_ptr<RssFeed> feed)
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
feeds.push_back(feed);
}
void FeedContainer::populate_query_feeds()
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
for (const auto& feed : feeds) {
if (feed->is_query_feed()) {
feed->update_items(feeds);
}
}
}
unsigned int FeedContainer::get_feed_count_per_tag(const std::string& tag)
{
unsigned int count = 0;
std::lock_guard<std::mutex> feedslock(feeds_mutex);
for (const auto& feed : feeds) {
if (feed->matches_tag(tag)) {
count++;
}
}
return count;
}
std::shared_ptr<RssFeed> FeedContainer::get_feed_by_url(
const std::string& feedurl)
{
for (const auto& feed : feeds) {
if (feedurl == feed->rssurl())
return feed;
}
LOG(Level::ERROR,
"FeedContainer:get_feed_by_url failed for %s",
feedurl);
return std::shared_ptr<RssFeed>();
}
unsigned int FeedContainer::get_pos_of_next_unread(unsigned int pos)
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
for (pos++; pos < feeds.size(); pos++) {
if (feeds[pos]->unread_item_count() > 0)
break;
}
return pos;
}
unsigned int FeedContainer::feeds_size()
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
return feeds.size();
}
void FeedContainer::reset_feeds_status()
{
std::lock_guard<std::mutex> feedlock(feeds_mutex);
for (const auto& feed : feeds) {
feed->reset_status();
}
}
void FeedContainer::set_feeds(
const std::vector<std::shared_ptr<RssFeed>> new_feeds)
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
feeds = new_feeds;
}
std::vector<std::shared_ptr<RssFeed>> FeedContainer::get_all_feeds()
{
std::vector<std::shared_ptr<RssFeed>> tmpfeeds;
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
tmpfeeds = feeds;
}
return tmpfeeds;
}
void FeedContainer::clear_feeds_items()
{
std::lock_guard<std::mutex> feedslock(feeds_mutex);
for (const auto& feed : feeds) {
std::lock_guard<std::mutex> lock(feed->item_mutex);
feed->clear_items();
}
}
unsigned int FeedContainer::unread_feed_count() const
{
return std::count_if(feeds.begin(),
feeds.end(),
[](const std::shared_ptr<RssFeed> feed) {
return feed->unread_item_count() > 0;
});
}
unsigned int FeedContainer::unread_item_count() const
{
return std::accumulate(feeds.begin(),
feeds.end(),
0,
[](unsigned int sum, const std::shared_ptr<RssFeed> feed) {
return sum += feed->unread_item_count();
});
}
} // namespace newsboat
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