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1
1<?php
2
3namespace AdvancedSearch;
4
5use MimeAnalyzer;
6
7/**
8 * @license GPL-2.0-or-later
9 */
10class MimeTypeConfigurator {
11
12    /**
13     * @var MimeAnalyzer
14     */
15    private $mimeAnalyzer;
16
17    /**
18     * @param MimeAnalyzer $mimeAnalyzer
19     */
20    public function __construct( MimeAnalyzer $mimeAnalyzer ) {
21        $this->mimeAnalyzer = $mimeAnalyzer;
22    }
23
24    /**
25     * @param string[] $fileExtensions
26     *
27     * @return string[] List of file extension => MIME type.
28     */
29    public function getMimeTypes( array $fileExtensions ) {
30        $mimeTypes = [];
31
32        foreach ( $fileExtensions as $ext ) {
33            $mimeType = $this->getFirstMimeTypeByFileExtension( $ext );
34            if ( !isset( $mimeTypes[$mimeType] ) ) {
35                $mimeTypes[$mimeType] = $ext;
36            }
37        }
38
39        return array_flip( $mimeTypes );
40    }
41
42    /**
43     * Uses MimeAnalyzer to determine the mimetype of a given file extension
44     *
45     * @param string $fileExtension
46     * @return string|null First mime type associated with the given file extension
47     */
48    private function getFirstMimeTypeByFileExtension( $fileExtension ) {
49        return $this->mimeAnalyzer->getMimeTypeFromExtensionOrNull( $fileExtension );
50    }
51
52}