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/*
Copyright (C) 2025 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "show_playlist.h"
#include "show_playlist.h"
#include "show_playlist_entry.h"
#include "show_playlist_list.h"
#include "sqlite_statement.h"
#include "sqlite_transaction.h"
using std::make_pair;
using std::pair;
using std::string;
using std::vector;
using boost::optional;
ShowPlaylistList::ShowPlaylistList()
: _show_playlists("show_playlists")
, _entries("entries")
, _db(Config::instance()->show_playlists_file())
{
setup_tables();
setup();
}
ShowPlaylistList::ShowPlaylistList(boost::filesystem::path db_file)
: _show_playlists("show_playlists")
, _entries("entries")
, _db(db_file)
{
setup_tables();
setup();
}
void
ShowPlaylistList::setup_tables()
{
_show_playlists.add_column("uuid", "TEXT");
_show_playlists.add_column("name", "TEXT");
_entries.add_column("show_playlist", "INTEGER");
_entries.add_column("uuid", "TEXT");
_entries.add_column("sort_index", "INTEGER");
}
void
ShowPlaylistList::setup()
{
SQLiteStatement show_playlists(_db, _show_playlists.create());
show_playlists.execute();
SQLiteStatement entries(_db, _entries.create());
entries.execute();
}
ShowPlaylistID
ShowPlaylistList::add_show_playlist(ShowPlaylist const& playlist)
{
SQLiteStatement statement(_db, _show_playlists.insert());
statement.bind_text(1, playlist.uuid());
statement.bind_text(2, playlist.name());
statement.execute();
return sqlite3_last_insert_rowid(_db.db());
}
void
ShowPlaylistList::remove_show_playlist(ShowPlaylistID id)
{
SQLiteStatement statement(_db, "DELETE FROM show_playlists WHERE ID=?");
statement.bind_int64(1, id.get());
statement.execute();
}
static
vector<pair<ShowPlaylistID, ShowPlaylist>>
show_playlists_from_result(SQLiteStatement& statement)
{
vector<pair<ShowPlaylistID, ShowPlaylist>> output;
statement.execute([&output](SQLiteStatement& statement) {
DCPOMATIC_ASSERT(statement.data_count() == 3);
ShowPlaylistID const id = statement.column_int64(0);
auto const uuid = statement.column_text(1);
auto const name = statement.column_text(2);
output.push_back(make_pair(id, ShowPlaylist(uuid, name)));
});
return output;
}
vector<pair<ShowPlaylistID, ShowPlaylist>>
ShowPlaylistList::show_playlists() const
{
SQLiteStatement statement(_db, _show_playlists.select("ORDER BY name COLLATE unicode ASC"));
return show_playlists_from_result(statement);
}
vector<string>
ShowPlaylistList::entries(ShowPlaylistID show_playlist_id) const
{
SQLiteStatement statement(_db, "SELECT entries.uuid FROM entries JOIN show_playlists ON entries.show_playlist=show_playlists.id WHERE show_playlists.id=? ORDER BY entries.sort_index");
statement.bind_int64(1, show_playlist_id.get());
vector<string> output;
statement.execute([&output](SQLiteStatement& statement) {
DCPOMATIC_ASSERT(statement.data_count() == 1);
output.push_back(statement.column_text(0));
});
return output;
}
vector<string>
ShowPlaylistList::entries(string const& show_playlist_uuid) const
{
SQLiteStatement statement(_db, "SELECT entries.uuid FROM entries JOIN show_playlists ON entries.show_playlist=show_playlists.id WHERE show_playlists.uuid=? ORDER BY entries.sort_index");
statement.bind_text(1, show_playlist_uuid);
vector<string> output;
statement.execute([&output](SQLiteStatement& statement) {
DCPOMATIC_ASSERT(statement.data_count() == 1);
output.push_back(statement.column_text(0));
});
return output;
}
void
ShowPlaylistList::add_entry(ShowPlaylistID playlist_id, ShowPlaylistEntry entry)
{
SQLiteTransaction transaction(_db);
SQLiteStatement find_last_screen(_db, "SELECT MAX(sort_index) FROM entries WHERE show_playlist=?");
find_last_screen.bind_int64(1, playlist_id.get());
optional<int> highest_index;
find_last_screen.execute([&highest_index](SQLiteStatement& statement) {
if (statement.data_count() == 1) {
highest_index = statement.column_int64(0);
}
});
SQLiteStatement add_entry(_db, _entries.insert());
add_entry.bind_int64(1, playlist_id.get());
add_entry.bind_text(2, entry.uuid());
add_entry.bind_int64(3, highest_index ? *highest_index + 1 : 0);
add_entry.execute();
transaction.commit();
}
void
ShowPlaylistList::move_entry_up(ShowPlaylistID playlist_id, int index)
{
DCPOMATIC_ASSERT(index >= 1);
SQLiteTransaction transaction(_db);
SQLiteStatement find(_db, "SELECT id,sort_index FROM entries WHERE show_playlist=? ORDER BY sort_index LIMIT 2 OFFSET ?");
find.bind_int64(1, playlist_id.get());
find.bind_int64(2, index - 1);
vector<pair<int64_t, int64_t>> rows;
find.execute([&rows](SQLiteStatement& statement) {
DCPOMATIC_ASSERT(statement.data_count() == 2);
rows.push_back({statement.column_int64(0), statement.column_int64(1)});
});
DCPOMATIC_ASSERT(rows.size() == 2);
SQLiteStatement swap1(_db, "UPDATE entries SET sort_index=? WHERE id=?");
swap1.bind_int64(1, rows[0].second);
swap1.bind_int64(2, rows[1].first);
swap1.execute();
SQLiteStatement swap2(_db, "UPDATE entries SET sort_index=? WHERE id=?");
swap2.bind_int64(1, rows[1].second);
swap2.bind_int64(2, rows[0].first);
swap2.execute();
transaction.commit();
}
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