/*
Copyright (©) 2003-2019 Teus Benschop.

This program 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 3 of the License, or
(at your option) any later version.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/


#include <database/strong.h>
#include <filter/url.h>
#include <filter/string.h>
#include <database/sqlite.h>


// This is the database for the Strong's definitions.
// Resilience: It is never written to. 
// Chances of corruption are nearly zero.


// Get Strong's definition for the $strong's number.
string Database_Strong::definition (string strong)
{
  sqlite3 * db;
  {
    // Search Greek lexicon.
    SqliteSQL sql = SqliteSQL ();
    sql.add ("SELECT definition FROM greekstrong WHERE id =");
    sql.add (strong);
    sql.add (";");
    db = connect ();
    vector <string> definitions = database_sqlite_query (db, sql.sql) ["definition"];
    database_sqlite_disconnect (db);
    if (!definitions.empty ()) return definitions[0];
  }
  // Nothing found.
  return "";
}


// Get Strong's number(s) for the $lemma.
// Most lemma's refer to one Strong's number, but some lemma's refer to more than one.
vector <string> Database_Strong::strong (string lemma)
{
  sqlite3 * db;
  {
    // Search Greek lexicon.
    SqliteSQL sql = SqliteSQL ();
    sql.add ("SELECT id FROM greekstrong WHERE lemma =");
    sql.add (lemma);
    sql.add (";");
    db = connect ();
    vector <string> ids = database_sqlite_query (db, sql.sql) ["id"];
    database_sqlite_disconnect (db);
    if (!ids.empty ()) return ids;
  }
  // Nothing found.
  return {};
}


sqlite3 * Database_Strong::connect ()
{
  return database_sqlite_connect ("greekstrong");
}
