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<?php

/* vim: set expandtab sw=4 ts=4 sts=4: */

/**

* Normalization process (temporarily specific to 1NF)

*

* @package PhpMyAdmin

*/

declare(strict_types=1);

use PhpMyAdmin\Core;

use PhpMyAdmin\Normalization;

use PhpMyAdmin\Response;

use PhpMyAdmin\Url;

require_once 'libraries/common.inc.php';

$normalization = new Normalization($GLOBALS['dbi']);

if (isset($_REQUEST['getColumns'])) {

$html = '<option selected disabled>' . __('Select one…') . '</option>'

. '<option value="no_such_col">' . __('No such column') . '</option>';

//get column whose datatype falls under string category

$html .= $normalization->getHtmlForColumnsList(

$db,

$table,

_pgettext('string types', 'String')

);

echo $html;

exit;

}

if (isset($_REQUEST['splitColumn'])) {

$num_fields = min(4096, intval($_REQUEST['numFields']));

$html = $normalization->getHtmlForCreateNewColumn($num_fields, $db, $table);

$html .= Url::getHiddenInputs($db, $table);

echo $html;

exit;

}

if (isset($_REQUEST['addNewPrimary'])) {

$num_fields = 1;

$columnMeta = ['Field' => $table . "_id", 'Extra' => 'auto_increment'];

$html = $normalization->getHtmlForCreateNewColumn(

$num_fields,

$db,

$table,

$columnMeta

);

$html .= Url::getHiddenInputs($db, $table);

echo $html;

exit;

}

if (isset($_REQUEST['findPdl'])) {

$html = $normalization->findPartialDependencies($table, $db);

echo $html;

exit;

}

if (isset($_REQUEST['getNewTables2NF'])) {

$partialDependencies = json_decode($_REQUEST['pd']);

$html = $normalization->getHtmlForNewTables2NF($partialDependencies, $table);

echo $html;

exit;

}

$response = Response::getInstance();

if (isset($_REQUEST['getNewTables3NF'])) {

$dependencies = json_decode($_REQUEST['pd']);

$tables = json_decode($_REQUEST['tables']);

$newTables = $normalization->getHtmlForNewTables3NF($dependencies, $tables, $db);

$response->disable();

Core::headerJSON();

echo json_encode($newTables);

exit;

}

$header = $response->getHeader();

$scripts = $header->getScripts();

$scripts->addFile('normalization.js');

$scripts->addFile('vendor/jquery/jquery.uitablefilter.js');

$normalForm = '1nf';

if (Core::isValid($_REQUEST['normalizeTo'], ['1nf', '2nf', '3nf'])) {

$normalForm = $_REQUEST['normalizeTo'];

}

if (isset($_REQUEST['createNewTables2NF'])) {

$partialDependencies = json_decode($_REQUEST['pd']);

$tablesName = json_decode($_REQUEST['newTablesName']);

$res = $normalization->createNewTablesFor2NF($partialDependencies, $tablesName, $table, $db);

$response->addJSON($res);

exit;

}

if (isset($_REQUEST['createNewTables3NF'])) {

$newtables = json_decode($_REQUEST['newTables']);

$res = $normalization->createNewTablesFor3NF($newtables, $db);

$response->addJSON($res);

exit;

}

if (isset($_POST['repeatingColumns'])) {

$repeatingColumns = $_POST['repeatingColumns'];

$newTable = $_POST['newTable'];

$newColumn = $_POST['newColumn'];

$primary_columns = $_POST['primary_columns'];

$res = $normalization->moveRepeatingGroup(

$repeatingColumns,

$primary_columns,

$newTable,

$newColumn,

$table,

$db

);

$response->addJSON($res);

exit;

}

if (isset($_REQUEST['step1'])) {

$html = $normalization->getHtmlFor1NFStep1($db, $table, $normalForm);

$response->addHTML($html);

} elseif (isset($_REQUEST['step2'])) {

$res = $normalization->getHtmlContentsFor1NFStep2($db, $table);

$response->addJSON($res);

} elseif (isset($_REQUEST['step3'])) {

$res = $normalization->getHtmlContentsFor1NFStep3($db, $table);

$response->addJSON($res);

} elseif (isset($_REQUEST['step4'])) {

$res = $normalization->getHtmlContentsFor1NFStep4($db, $table);

$response->addJSON($res);

} elseif (isset($_REQUEST['step']) && $_REQUEST['step'] == '2.1') {

$res = $normalization->getHtmlFor2NFstep1($db, $table);

$response->addJSON($res);

} elseif (isset($_REQUEST['step']) && $_REQUEST['step'] == '3.1') {

$tables = $_REQUEST['tables'];

$res = $normalization->getHtmlFor3NFstep1($db, $tables);

$response->addJSON($res);

} else {

$response->addHTML($normalization->getHtmlForNormalizeTable());

}