<?php defined("SYSPATH") or die("No direct script access.");
/**
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2009 Bharat Mediratta
 *
 * 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 Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */
class Database_Test extends Unit_Test_Case {
  function simple_where_test() {
    $sql = Database::instance()
      ->where("a", "=", 1)
      ->where("b", "=", 2)
      ->compile();
    $sql = str_replace("\n", " ", $sql);
    $this->assert_same("SELECT * WHERE `a` = 1 AND `b` = 2", $sql);
  }

  function compound_where_test() {
    $sql = Database::instance()
      ->where("outer1", "=", 1)
      ->and_open()
      ->where("inner1", "=", 1)
      ->orwhere("inner2", "=", 2)
      ->close()
      ->where("outer2", "=", 2)
      ->compile();
    $sql = str_replace("\n", " ", $sql);
    $this->assert_same(
      "SELECT * WHERE `outer1` = 1 AND (`inner1` = 1 OR `inner2` = 2) AND `outer2` = 2",
      $sql);
  }

  function group_first_test() {
    $sql = Database::instance()
      ->and_open()
      ->where("inner1", "=", 1)
      ->orwhere("inner2", "=", 2)
      ->close()
      ->where("outer1", "=", 1)
      ->where("outer2", "=", 2)
      ->compile();
    $sql = str_replace("\n", " ", $sql);
    $this->assert_same(
      "SELECT * WHERE (`inner1` = 1 OR `inner2` = 2) AND `outer1` = 1 AND `outer2` = 2",
      $sql);
  }

  function where_array_test() {
    $sql = Database::instance()
      ->where("outer1", "=", 1)
      ->and_open()
      ->where("inner1", "=", 1)
      ->orwhere("inner2", "=", 2)
      ->orwhere("inner3", "=", 3))
      ->close()
      ->compile();
    $sql = str_replace("\n", " ", $sql);
    $this->assert_same(
      "SELECT * WHERE `outer1` = 1 AND (`inner1` = 1 OR `inner2` = 2 OR `inner3` = 3)",
      $sql);
  }

  function notlike_test() {
    $sql = Database::instance()
      ->where("outer1", "=", 1)
      ->or_open()
      ->where("inner1", "NOT LIKE", 1)
      ->close()
      ->compile();
    $sql = str_replace("\n", " ", $sql);
    $this->assert_same(
      "SELECT * WHERE `outer1` = 1 OR ( `inner1` NOT LIKE '%1%')",
      $sql);
  }

  function prefix_replacement_test() {
    $db = Database_For_Test::instance();
    $converted = $db->add_table_prefixes("CREATE TABLE IF NOT EXISTS {test_tables} (
                   `id` int(9) NOT NULL auto_increment,
                   `name` varchar(32) NOT NULL,
                   PRIMARY KEY (`id`),
                   UNIQUE KEY(`name`))
                 ENGINE=InnoDB DEFAULT CHARSET=utf8");
    $expected = "CREATE TABLE IF NOT EXISTS g3test_test_tables (
                   `id` int(9) NOT NULL auto_increment,
                   `name` varchar(32) NOT NULL,
                   PRIMARY KEY (`id`),
                   UNIQUE KEY(`name`))
                 ENGINE=InnoDB DEFAULT CHARSET=utf8";
    $this->assert_same($expected, $converted);

    $sql = "UPDATE {test_tables} SET `name` = '{test string}' " .
        "WHERE `item_id` IN " .
        "  (SELECT `id` FROM {items} " .
        "  WHERE `left_ptr` >= 1 " .
        "  AND `right_ptr` <= 6)";
    $sql = $db->add_table_prefixes($sql);

    $expected = "UPDATE g3test_test_tables SET `name` = '{test string}' " .
        "WHERE `item_id` IN " .
        "  (SELECT `id` FROM g3test_items " .
        "  WHERE `left_ptr` >= 1 " .
        "  AND `right_ptr` <= 6)";

    $this->assert_same($expected, $sql);
  }

  function prefix_no_replacement_test() {
    $update = Database_For_Test::instance()->from("test_tables")
      ->where("1", "=", "1")
      ->set(array("name" => "Test Name"))
      ->update();

    $expected = "UPDATE `g3test_test_tables` SET `name` = 'Test Name' WHERE 1 = 1";

    $this->assert_same($expected, $update);
  }
}

class Database_For_Test extends Database {
  static function instance() {
    $db = new Database_For_Test();
    $db->_table_names["{items}"] = "g3test_items";
    $db->config["table_prefix"] = "g3test_";
    return $db;
  }

  public function query($sql = '') {
    if (!empty($sql)) {
      $sql = $this->add_table_prefixes($sql);
    }
    return $sql;
  }
}