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// SPDX-License-Identifier: GPL-2.0
#include "divefilter.h"
#include "divelist.h"
#include "gettextfromc.h"
#include "qthelper.h"
#include "selection.h"
#include "subsurface-qt/divelistnotifier.h"
#if !defined(SUBSURFACE_MOBILE) && !defined(SUBSURFACE_DOWNLOADER)
#include "desktop-widgets/mapwidget.h"
#include "desktop-widgets/mainwindow.h"
#include "desktop-widgets/divelistview.h"
#include "qt-models/filtermodels.h"
#endif
// Set filter status of dive and return whether it has been changed
bool DiveFilter::setFilterStatus(struct dive *d, bool shown) const
{
bool old_shown, changed;
if (!d)
return false;
old_shown = !d->hidden_by_filter;
d->hidden_by_filter = !shown;
if (!shown && d->selected)
deselect_dive(d);
changed = old_shown != shown;
if (changed)
shown_dives += shown - old_shown;
return changed;
}
void DiveFilter::updateDiveStatus(dive *d, bool newStatus, ShownChange &change) const
{
if (setFilterStatus(d, newStatus)) {
if (newStatus)
change.newShown.push_back(d);
else
change.newHidden.push_back(d);
}
}
bool FilterData::operator==(const FilterData &f2) const
{
return fullText.originalQuery == f2.fullText.originalQuery &&
fulltextStringMode == f2.fulltextStringMode &&
constraints == f2.constraints;
}
bool FilterData::validFilter() const
{
return fullText.doit() || !constraints.empty();
}
ShownChange DiveFilter::update(const QVector<dive *> &dives) const
{
dive *old_current = current_dive;
ShownChange res;
bool doDS = diveSiteMode();
bool doFullText = filterData.fullText.doit();
for (dive *d: dives) {
// There are three modes: divesite, fulltext, normal
bool newStatus = doDS ? dive_sites.contains(d->dive_site) :
doFullText ? fulltext_dive_matches(d, filterData.fullText, filterData.fulltextStringMode) && showDive(d) :
showDive(d);
updateDiveStatus(d, newStatus, res);
}
res.currentChanged = old_current != current_dive;
return res;
}
void DiveFilter::reset()
{
int i;
dive *d;
shown_dives = dive_table.nr;
for_each_dive(i, d)
d->hidden_by_filter = false;
updateAll();
}
ShownChange DiveFilter::updateAll() const
{
dive *old_current = current_dive;
ShownChange res;
int i;
dive *d;
// There are three modes: divesite, fulltext, normal
if (diveSiteMode()) {
for_each_dive(i, d) {
bool newStatus = dive_sites.contains(d->dive_site);
updateDiveStatus(d, newStatus, res);
}
} else if (filterData.fullText.doit()) {
FullTextResult ft = fulltext_find_dives(filterData.fullText, filterData.fulltextStringMode);
for_each_dive(i, d) {
bool newStatus = ft.dive_matches(d) && showDive(d);
updateDiveStatus(d, newStatus, res);
}
} else {
for_each_dive(i, d) {
bool newStatus = showDive(d);
updateDiveStatus(d, newStatus, res);
}
}
res.currentChanged = old_current != current_dive;
return res;
}
DiveFilter *DiveFilter::instance()
{
static DiveFilter self;
return &self;
}
DiveFilter::DiveFilter() :
shown_dives(0),
diveSiteRefCount(0)
{
}
void DiveFilter::diveRemoved(const dive *d) const
{
if (!d->hidden_by_filter)
--shown_dives;
}
bool DiveFilter::showDive(const struct dive *d) const
{
if (d->invalid && !prefs.display_invalid_dives)
return false;
if (!filterData.validFilter())
return true;
return std::all_of(filterData.constraints.begin(), filterData.constraints.end(),
[d] (const filter_constraint &c) { return filter_constraint_match_dive(c, d); });
}
#if !defined(SUBSURFACE_MOBILE) && !defined(SUBSURFACE_DOWNLOADER)
void DiveFilter::startFilterDiveSites(QVector<dive_site *> ds)
{
if (++diveSiteRefCount > 1) {
setFilterDiveSite(ds);
} else {
std::sort(ds.begin(), ds.end());
dive_sites = ds;
// When switching into dive site mode, reload the dive sites.
// TODO: why here? why not catch the filterReset signal in the map widget
MapWidget::instance()->reload();
emit diveListNotifier.filterReset();
}
}
void DiveFilter::stopFilterDiveSites()
{
if (--diveSiteRefCount > 0)
return;
dive_sites.clear();
emit diveListNotifier.filterReset();
MapWidget::instance()->reload();
}
void DiveFilter::setFilterDiveSite(QVector<dive_site *> ds)
{
// If the filter didn't change, return early to avoid a full
// map reload. For a well-defined comparison, sort the vector first.
std::sort(ds.begin(), ds.end());
if (ds == dive_sites)
return;
dive_sites = ds;
emit diveListNotifier.filterReset();
MapWidget::instance()->setSelected(dive_sites);
MapWidget::instance()->selectionChanged();
MainWindow::instance()->diveList->expandAll();
}
const QVector<dive_site *> &DiveFilter::filteredDiveSites() const
{
return dive_sites;
}
bool DiveFilter::diveSiteMode() const
{
return diveSiteRefCount > 0;
}
#else
bool DiveFilter::diveSiteMode() const
{
return false;
}
#endif
QString DiveFilter::shownText() const
{
if (diveSiteMode() || filterData.validFilter())
return gettextFromC::tr("%L1/%L2 shown").arg(shown_dives).arg(dive_table.nr);
else
return gettextFromC::tr("%L1 dives").arg(dive_table.nr);
}
int DiveFilter::shownDives() const
{
return shown_dives;
}
void DiveFilter::setFilter(const FilterData &data)
{
filterData = data;
emit diveListNotifier.filterReset();
}
std::vector<dive *> DiveFilter::visibleDives() const
{
if (shown_dives <= 0)
return {};
std::vector<dive *> res;
res.reserve(shown_dives);
int i;
dive *d;
for_each_dive(i, d) {
if (!d->hidden_by_filter)
res.push_back(d);
}
return res;
}
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