/*
 * Juick
 * Copyright (C) 2008-2011, Ugnich Anton
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.juick.server;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

/**
 *
 * @author Ugnich Anton
 */
public class TagQueries {

    public static int getTagID(Connection sql, String tag, boolean autoCreate) {
        int tid = 0;

        PreparedStatement stmt = null;
        ResultSet rs = null;
        try {
            stmt = sql.prepareStatement("SELECT tag_id FROM tags WHERE name=?");
            stmt.setString(1, tag);
            rs = stmt.executeQuery();
            if (rs.first()) {
                tid = rs.getInt(1);
            }
        } catch (SQLException e) {
            System.err.println(e);
        } finally {
            Utils.finishSQL(rs, stmt);
        }

        if (tid == 0 && autoCreate) {
            try {
                stmt = sql.prepareStatement("INSERT INTO tags(name) VALUES (?)", Statement.RETURN_GENERATED_KEYS);
                stmt.setString(1, tag);
                stmt.executeUpdate();
                rs = stmt.getGeneratedKeys();
                if (rs.first()) {
                    tid = rs.getInt(1);
                }
            } catch (SQLException e) {
                System.err.println(e);
            } finally {
                Utils.finishSQL(rs, stmt);
            }
        }

        return tid;
    }
}