/* cos-search.cxx:

 *   based on quickstartsearch.cc: Simplest possible searcher

 *

 * ----START-LICENCE----

 * Copyright 1999,2000,2001 BrightStation PLC

 * Copyright 2003,2004 Olly Betts

 * Copyright 2010 Stiletto <blasux@blasux.ru>

 *

 * 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 2 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 St, Fifth Floor, Boston, MA  02110-1301

 * USA

 */

#include <xapian.h>

#include <iostream>

#include <cstdlib>

#include <algorithm>

#include <pcrecpp.h>

using namespace std;

int main(int argc, char **argv)

{

    // Simplest possible options parsing: we just require two or more

    // parameters.

    if (argc < 3) {

        cout << "usage: " << argv[0] <<

                " <path to database> <search query>" << endl;

        exit(1);

    }

    // Catch any Xapian::Error exceptions thrown

    try {

	Xapian::Database db(argv[1]);

        Xapian::Enquire enquire(db);

        Xapian::QueryParser qp;

        string qstring(argv[2]);

        pcrecpp::RE prereg("([A-Za-z0-9_-]+):");

        pcrecpp::StringPiece input(qstring);  // Wrap in a StringPiece

        string var;

        while (prereg.Consume(&input, &var)) {

            string upvar = var+"=";

            std::transform(var.begin(), var.end(), var.begin(), ::tolower);

            std::transform(upvar.begin(), upvar.end(), upvar.begin(), ::toupper);

            cout << var << upvar << endl;

            qp.add_boolean_prefix(var,upvar);

        }

        // Build the query object

        Xapian::Query query = qp.parse_query(qstring); //Xapian::Query::OP_OR, argv + 2, argv + argc);

        cout << "Performing query `" << query.get_description() << "'" << endl;

        // Give the query object to the enquire session

        enquire.set_query(query);

        // Get the top 10 results of the query

        Xapian::MSet matches = enquire.get_mset(0, db.get_doccount());

        // Display the results

        cout << matches.size() << " results found" << endl;

        for (Xapian::MSetIterator i = matches.begin();

             i != matches.end();

             ++i) {

            Xapian::Document doc = i.get_document();

            cout << "Document ID " << *i << "\t" <<

                    i.get_percent() << "% [" <<

                    doc.get_data() << "]" << endl;

        }

    } catch(const Xapian::Error &error) {

        cout << "Exception: "  << error.get_msg() << endl;

    }

}