typo3-php-datasets/Classes/Converter/Csv.php

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<?php
declare(strict_types=1);
/*
* Copyright (C) 2023 Daniel Siepmann <coding@daniel-siepmann.de>
*
* 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.
*/
namespace Codappix\Typo3PhpDatasets\Converter;
use InvalidArgumentException;
use SplFileObject;
class Csv implements Converter
{
public function convert(string $fileName): string
{
if (file_exists($fileName) === false) {
throw new InvalidArgumentException('Given file "' . $fileName . '" does not exist.', 1681283739);
}
$phpFileName = $this->getNewFileName($fileName);
$incomingFile = new SplFileObject($fileName);
try {
file_put_contents($phpFileName, $this->buildContent($incomingFile));
} catch (\Exception $e) {
throw new \Exception('Could not generate new file.', 1681287881, $e);
}
return $phpFileName;
}
private function getNewFileName(string $fileName): string
{
$file = new SplFileObject($fileName);
return str_replace(
$file->getBasename(),
$file->getBasename($file->getExtension()) . 'php',
$file->getRealPath()
);
}
private function buildContent(SplFileObject $incomingFile): string
{
$phpArray = [];
$tableName = '';
$columns = [];
$incomingFile->setFlags(SplFileObject::READ_CSV);
$incomingFile->setCsvControl(',', '"', '"');
foreach ($incomingFile as $line) {
if (is_array($line) && count($line) === 1 && is_null($line[0])) {
// End of file
break;
}
if (is_array($line) && count($line) === 1 && is_string($line[0])) {
// Line is a new table, introducing also new columns o next row
$tableName = $line[0];
$columns = [];
continue;
}
if ($columns === [] && is_array($line)) {
$columns = array_slice($line, 1);
continue;
}
if (is_array($line)) {
$values = array_slice($line, 1);
$phpArray[$tableName][] = array_combine($columns, $values);
}
}
return implode(PHP_EOL, [
'<?php',
'',
'return ' . var_export($phpArray, true) . ';',
'',
]);
}
}