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1<?php
2/**
3 * @license GPL-2.0-or-later
4 */
5
6namespace CirrusSearch\Sanity;
7
8use MediaWiki\Page\WikiPage;
9use MediaWiki\Title\Title;
10
11/**
12 * Counts problems seen and delegates remediation to another instance.
13 */
14class CountingRemediator implements Remediator {
15
16    /** @var Remediator Instance to delgate to */
17    private Remediator $delegate;
18
19    /**
20     * @var callable Function with no arguments returning a
21     *  CounterMetric instance. This must be a callable, and
22     *  not the CounterMetric itself, as the api requires setting
23     *  all labels for each increment.
24     */
25    private $counterFactory;
26
27    /**
28     * @param Remediator $delegate Instance to delgate to
29     * @param callable $counterFactory Function with a single string argument returning a
30     *  CounterMetric instance.
31     */
32    public function __construct( Remediator $delegate, callable $counterFactory ) {
33        $this->delegate = $delegate;
34        $this->counterFactory = $counterFactory;
35    }
36
37    private function increment( string $problem ) {
38        ( $this->counterFactory )( $problem )->increment();
39    }
40
41    /**
42     * @inheritDoc
43     */
44    public function redirectInIndex( string $docId, WikiPage $page, string $indexSuffix ) {
45        $this->increment( __FUNCTION__ );
46        $this->delegate->redirectInIndex( $docId, $page, $indexSuffix );
47    }
48
49    /**
50     * @inheritDoc
51     */
52    public function pageNotInIndex( WikiPage $page ) {
53        $this->increment( __FUNCTION__ );
54        $this->delegate->pageNotInIndex( $page );
55    }
56
57    /**
58     * @inheritDoc
59     */
60    public function ghostPageInIndex( $docId, Title $title ) {
61        $this->increment( __FUNCTION__ );
62        $this->delegate->ghostPageInIndex( $docId, $title );
63    }
64
65    /**
66     * @inheritDoc
67     */
68    public function pageInWrongIndex( $docId, WikiPage $page, $indexSuffix ) {
69        $this->increment( __FUNCTION__ );
70        $this->delegate->pageInWrongIndex( $docId, $page, $indexSuffix );
71    }
72
73    /**
74     * @inheritDoc
75     */
76    public function oldVersionInIndex( $docId, WikiPage $page, $indexSuffix ) {
77        $this->increment( __FUNCTION__ );
78        $this->delegate->oldVersionInIndex( $docId, $page, $indexSuffix );
79    }
80
81    /**
82     * @inheritDoc
83     */
84    public function oldDocument( WikiPage $page ) {
85        $this->increment( __FUNCTION__ );
86        $this->delegate->oldDocument( $page );
87    }
88}