1+ <?php
2+
3+ namespace Devloops \LaravelTypesense \Engines ;
4+
5+ use Laravel \Scout \Builder ;
6+ use Laravel \Scout \Engines \Engine ;
7+ use Illuminate \Support \Collection ;
8+ use Illuminate \Database \Eloquent \Model ;
9+ use Devloops \LaravelTypesense \Typesense ;
10+ use GuzzleHttp \Exception \GuzzleException ;
11+ use Devloops \Typesence \Exceptions \TypesenseClientError ;
12+
13+ /**
14+ * Class TypesenseSearchEngine
15+ *
16+ * @package Devloops\LaravelTypesense\Engines
17+ * @date 4/5/20
18+ * @author Abdullah Al-Faqeir <[email protected] > 19+ */
20+ class TypesenseSearchEngine extends Engine
21+ {
22+
23+ private $ typesense ;
24+
25+ /**
26+ * TypesenseSearchEngine constructor.
27+ *
28+ * @param $typesense
29+ */
30+ public function __construct (Typesense $ typesense )
31+ {
32+ $ this ->typesense = $ typesense ;
33+ }
34+
35+ /**
36+ * @inheritDoc
37+ */
38+ public function update ($ models ): void
39+ {
40+ $ models ->each (
41+ function (Model $ model ) {
42+ $ array = $ model ->toSearchableArray ();
43+
44+ $ collectionIndex = $ this ->typesense ->getCollectionIndex ($ model );
45+
46+ $ this ->typesense ->upsertDocument ($ collectionIndex , $ array );
47+ }
48+ );
49+ }
50+
51+ /**
52+ * @inheritDoc
53+ */
54+ public function delete ($ models ): void
55+ {
56+ $ models ->each (
57+ function (Model $ model ) {
58+ $ collectionIndex = $ this ->typesense ->getCollectionIndex ($ model );
59+
60+ $ this ->typesense ->deleteDocument (
61+ $ collectionIndex ,
62+ $ model ->{$ model ->getKey ()}
63+ );
64+ }
65+ );
66+ }
67+
68+ /**
69+ * @inheritDoc
70+ */
71+ public function search (Builder $ builder )
72+ {
73+ return $ this ->performSearch (
74+ $ builder ,
75+ array_filter (
76+ [
77+ 'q ' => $ builder ->query ,
78+ 'query_by ' => implode (', ' , $ builder ->model ->typesenseQueryBy ()),
79+ 'fiter_by ' => $ this ->filters ($ builder ),
80+ 'per_page ' => $ builder ->limit ,
81+ 'page ' => 1 ,
82+ ]
83+ )
84+ );
85+ }
86+
87+ /**
88+ * @inheritDoc
89+ */
90+ public function paginate (Builder $ builder , $ perPage , $ page )
91+ {
92+ return $ this ->performSearch (
93+ $ builder ,
94+ [
95+ 'q ' => $ builder ->query ,
96+ 'query_by ' => implode (', ' , $ builder ->model ->typesenseQueryBy ()),
97+ 'fiter_by ' => $ this ->filters ($ builder ),
98+ 'per_page ' => $ builder ->limit ,
99+ 'page ' => 1 ,
100+ ]
101+ );
102+ }
103+
104+ /**
105+ * @param \Laravel\Scout\Builder $builder
106+ * @param array $options
107+ *
108+ * @return array|mixed
109+ * @throws \Devloops\Typesence\Exceptions\TypesenseClientError
110+ * @throws \GuzzleHttp\Exception\GuzzleException
111+ */
112+ protected function performSearch (Builder $ builder , array $ options = [])
113+ {
114+ $ documents =
115+ $ this ->typesense ->getCollectionIndex ($ builder ->model )->getDocuments ();
116+ if ($ builder ->callback ) {
117+ return call_user_func (
118+ $ builder ->callback ,
119+ $ documents ,
120+ $ builder ->query ,
121+ $ options
122+ );
123+ }
124+ return $ documents ->search (
125+ $ options
126+ );
127+ }
128+
129+ /**
130+ * @param \Laravel\Scout\Builder $builder
131+ *
132+ * @return array
133+ */
134+ protected function filters (Builder $ builder ): array
135+ {
136+ return collect ($ builder ->wheres )->map (
137+ static function ($ value , $ key ) {
138+ return $ key . ':= ' . $ value ;
139+ }
140+ )->values ()->all ();
141+ }
142+
143+ /**
144+ * @inheritDoc
145+ */
146+ public function mapIds ($ results ): Collection
147+ {
148+ return collect ($ results ['hits ' ])->pluck ('document.id ' )->values ();
149+ }
150+
151+ /**
152+ * @inheritDoc
153+ */
154+ public function map (Builder $ builder , $ results , $ model )
155+ {
156+ if ((int )($ results ['found ' ] ?? 0 ) === 0 ) {
157+ return $ model ->newCollection ();
158+ }
159+
160+ $ objectIds =
161+ collect ($ results ['hits ' ])->pluck ('document.id ' )->values ()->all ();
162+ $ objectIdPositions = array_flip ($ objectIds );
163+ return $ model ->getScoutModelsByIds (
164+ $ builder ,
165+ $ objectIds
166+ )->filter (
167+ static function ($ model ) use ($ objectIds ) {
168+ return in_array ($ model ->getScoutKey (), $ objectIds , false );
169+ }
170+ )->sortBy (
171+ static function ($ model ) use ($ objectIdPositions ) {
172+ return $ objectIdPositions [$ model ->getScoutKey ()];
173+ }
174+ )->values ();
175+ }
176+
177+ /**
178+ * @inheritDoc
179+ */
180+ public function getTotalCount ($ results ): int
181+ {
182+ return (int )($ results ['found ' ] ?? 0 );
183+ }
184+
185+ /**
186+ * @inheritDoc
187+ */
188+ public function flush ($ model ): void
189+ {
190+ $ collection = $ this ->typesense ->getCollectionIndex ($ model );
191+ try {
192+ $ collection ->delete ();
193+ } catch (TypesenseClientError $ e ) {
194+ } catch (GuzzleException $ e ) {
195+ }
196+ }
197+
198+ }
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