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1<?php
2
3namespace MediaWiki\Settings\Config;
4
5abstract class ConfigBuilderBase implements ConfigBuilder {
6
7    abstract protected function has( string $key ): bool;
8
9    abstract protected function update( string $key, $value );
10
11    /**
12     * @inheritDoc
13     */
14    public function set(
15        string $key,
16        $newValue,
17        MergeStrategy $mergeStrategy = null
18    ): ConfigBuilder {
19        if ( $mergeStrategy && $this->has( $key ) && is_array( $newValue ) ) {
20            $oldValue = $this->get( $key );
21            if ( $oldValue && is_array( $oldValue ) ) {
22                $newValue = $mergeStrategy->merge( $oldValue, $newValue );
23            }
24        }
25        $this->update( $key, $newValue );
26        return $this;
27    }
28
29    /**
30     * @inheritDoc
31     */
32    public function setMulti( array $values, array $mergeStrategies = [] ): ConfigBuilder {
33        foreach ( $values as $key => $value ) {
34            $this->set( $key, $value, $mergeStrategies[$key] ?? null );
35        }
36        return $this;
37    }
38
39    /**
40     * @inheritDoc
41     */
42    public function setDefault(
43        string $key,
44        $defaultValue,
45        MergeStrategy $mergeStrategy = null
46    ): ConfigBuilder {
47        if ( $this->has( $key ) ) {
48            if ( $mergeStrategy && $defaultValue && is_array( $defaultValue ) ) {
49                $customValue = $this->get( $key );
50                if ( is_array( $customValue ) ) {
51                    $newValue = $mergeStrategy->merge( $defaultValue, $customValue );
52                    $this->update( $key, $newValue );
53                }
54            }
55        } else {
56            $this->update( $key, $defaultValue );
57        }
58
59        return $this;
60    }
61
62    /**
63     * @inheritDoc
64     */
65    public function setMultiDefault( array $defaults, array $mergeStrategies ): ConfigBuilder {
66        foreach ( $defaults as $key => $defaultValue ) {
67            $this->setDefault( $key, $defaultValue, $mergeStrategies[$key] ?? null );
68        }
69        return $this;
70    }
71
72}