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1 | <?php | |
2 | ||
3 | namespace Wallabag\CoreBundle\Helper; | |
4 | ||
5 | use RulerZ\RulerZ; | |
6 | use Wallabag\CoreBundle\Entity\Entry; | |
7 | use Wallabag\CoreBundle\Entity\Tag; | |
8 | use Wallabag\CoreBundle\Repository\EntryRepository; | |
9 | use Wallabag\CoreBundle\Repository\TagRepository; | |
10 | use Wallabag\UserBundle\Entity\User; | |
11 | ||
12 | class RuleBasedTagger | |
13 | { | |
14 | private $rulerz; | |
15 | private $tagRepository; | |
16 | private $entryRepository; | |
17 | ||
18 | public function __construct(RulerZ $rulerz, TagRepository $tagRepository, EntryRepository $entryRepository) | |
19 | { | |
20 | $this->rulerz = $rulerz; | |
21 | $this->tagRepository = $tagRepository; | |
22 | $this->entryRepository = $entryRepository; | |
23 | } | |
24 | ||
25 | /** | |
26 | * Add tags from rules defined by the user. | |
27 | * | |
28 | * @param Entry $entry Entry to tag | |
29 | */ | |
30 | public function tag(Entry $entry) | |
31 | { | |
32 | $rules = $this->getRulesForUser($entry->getUser()); | |
33 | ||
34 | foreach ($rules as $rule) { | |
35 | if (!$this->rulerz->satisfies($entry, $rule->getRule())) { | |
36 | continue; | |
37 | } | |
38 | ||
39 | foreach ($rule->getTags() as $label) { | |
40 | $tag = $this->getTag($label); | |
41 | ||
42 | $entry->addTag($tag); | |
43 | } | |
44 | } | |
45 | } | |
46 | ||
47 | /** | |
48 | * Apply all the tagging rules defined by a user on its entries. | |
49 | * | |
50 | * @param User $user | |
51 | * | |
52 | * @return array<Entry> A list of modified entries | |
53 | */ | |
54 | public function tagAllForUser(User $user) | |
55 | { | |
56 | $rules = $this->getRulesForUser($user); | |
57 | $entries = []; | |
58 | ||
59 | foreach ($rules as $rule) { | |
60 | $qb = $this->entryRepository->getBuilderForAllByUser($user->getId()); | |
61 | $entries = $this->rulerz->filter($qb, $rule->getRule()); | |
62 | ||
63 | foreach ($entries as $entry) { | |
64 | foreach ($rule->getTags() as $label) { | |
65 | $tag = $this->getTag($label); | |
66 | ||
67 | $entry->addTag($tag); | |
68 | } | |
69 | } | |
70 | } | |
71 | ||
72 | return $entries; | |
73 | } | |
74 | ||
75 | /** | |
76 | * Fetch a tag. | |
77 | * | |
78 | * @param string $label The tag's label | |
79 | * | |
80 | * @return Tag | |
81 | */ | |
82 | private function getTag($label) | |
83 | { | |
84 | $tag = $this->tagRepository->findOneByLabel($label); | |
85 | ||
86 | if (!$tag) { | |
87 | $tag = new Tag(); | |
88 | $tag->setLabel($label); | |
89 | } | |
90 | ||
91 | return $tag; | |
92 | } | |
93 | ||
94 | /** | |
95 | * Retrieves the tagging rules for a given user. | |
96 | * | |
97 | * @param User $user | |
98 | * | |
99 | * @return array<TaggingRule> | |
100 | */ | |
101 | private function getRulesForUser(User $user) | |
102 | { | |
103 | return $user->getConfig()->getTaggingRules(); | |
104 | } | |
105 | } |