Improvement for Recommendation Endpoint

src/Endpoints/Collections/Points.php

@@ -12,11 +12,11 @@
 
 use Qdrant\Endpoints\AbstractEndpoint;
 use Qdrant\Endpoints\Collections\Points\Payload;
+use Qdrant\Endpoints\Collections\Points\Recommend;
 use Qdrant\Exception\InvalidArgumentException;
 use Qdrant\Models\Filter\Filter;
 use Qdrant\Models\PointsStruct;
 use Qdrant\Models\Request\PointsBatch;
-use Qdrant\Models\Request\RecommendRequest;
 use Qdrant\Models\Request\ScrollRequest;
 use Qdrant\Models\Request\SearchRequest;
 use Qdrant\Response;
@@ -28,6 +28,11 @@ public function payload(): Payload
         return (new Payload($this->client))->setCollectionName($this->collectionName);
     }
 
+    public function recommend(): Recommend
+    {
+        return (new Recommend($this->client))->setCollectionName($this->collectionName);
+    }
+
     /**
      * @throws InvalidArgumentException
      */
@@ -180,18 +185,4 @@ public function batch(PointsBatch $points, array $queryParams = []): Response
             )
         );
     }
-
-    /**
-     * @throws InvalidArgumentException
-     */
-    public function recommend(RecommendRequest $recommendParams): Response
-    {
-        return $this->client->execute(
-            $this->createRequest(
-                'POST',
-                'collections/' . $this->collectionName . '/points/recommend',
-                $recommendParams->toArray()
-            )
-        );
-    }
 }

src/Endpoints/Collections/Points/Recommend.php

@@ -0,0 +1,62 @@
+<?php
+/**
+ * Payload
+ *
+ * @since     Mar 2023
+ * @author    Haydar KULEKCI <[email protected]>
+ */
+
+namespace Qdrant\Endpoints\Collections\Points;
+
+use Qdrant\Endpoints\AbstractEndpoint;
+use Qdrant\Exception\InvalidArgumentException;
+use Qdrant\Models\Request\Points\BatchRecommendRequest;
+use Qdrant\Models\Request\Points\GroupRecommendRequest;
+use Qdrant\Models\Request\Points\RecommendRequest;
+use Qdrant\Response;
+
+class Recommend extends AbstractEndpoint
+{
+    /**
+     * Retrieves points that are closer to stored positive examples and further from negative examples.
+     *
+     * @throws InvalidArgumentException
+     */
+    public function recommend(RecommendRequest $request, array $queryParams = []): Response
+    {
+        return $this->client->execute(
+            $this->createRequest(
+                'POST',
+                '/collections/' . $this->getCollectionName() . '/points/recommend' . $this->queryBuild($queryParams),
+                $request->toArray()
+            )
+        );
+    }
+
+    /**
+     * Retrieves points in batches that are closer to stored positive examples and further from negative examples.
+     *
+     * @param BatchRecommendRequest $request
+     * @param array $queryParams
+     * @return Response
+     */
+    public function batch(BatchRecommendRequest $request, array $queryParams = []): Response
+    {
+
+        return $this->client->execute(
+            $this->createRequest(
+                'POST',
+                '/collections/' . $this->getCollectionName() . '/points/recommend/batch' . $this->queryBuild($queryParams),
+                $request->toArray()
+            )
+        );
+    }
+
+    /**
+     * @throws InvalidArgumentException
+     */
+    public function groups($request, array $queryParams = []): Response
+    {
+        throw new \RuntimeException('Not implemented on client!');
+    }
+}

src/Models/Filter/Condition/GeoPolygon.php

@@ -0,0 +1,42 @@
+<?php
+/**
+ * @since     May 2023
+ * @author    Haydar KULEKCI <[email protected]>
+ */
+
+namespace Qdrant\Models\Filter\Condition;
+
+use Qdrant\Exception\InvalidArgumentException;
+use Qdrant\Domain\Assert;
+
+class GeoPolygon extends AbstractCondition implements ConditionInterface
+{
+    public function __construct(string $key, protected array $exterior, protected ?array $interiors = null)
+    {
+        parent::__construct($key);
+
+        if (empty($this->exterior)) {
+            throw new InvalidArgumentException('Exteriors required!');
+        }
+
+        foreach ($this->exterior as $point) {
+            Assert::keysExists($point, ['lat', 'lon'], 'Each point of polygon needs lat and lon parameters');
+        }
+        if ($interiors) {
+            foreach ($this->interiors as $point) {
+                Assert::keysExists($point, ['lat', 'lon'], 'Each point of polygon needs lat and lon parameters');
+            }
+        }
+    }
+
+    public function toArray(): array
+    {
+        return [
+            'key' => $this->key,
+            'geo_polygon' => [
+                'exterior' => $this->exterior,
+                'interiors' => $this->interiors ?? []
+            ]
+        ];
+    }
+}

src/Models/Filter/Filter.php

@@ -13,6 +13,8 @@ class Filter implements ConditionInterface
     protected array $must = [];
     protected array $must_not = [];
     protected array $should = [];
+    protected array $minShould = [];
+    protected ?int $minShouldCount;
 
     public function addMust(ConditionInterface $condition): Filter
     {
@@ -35,6 +37,20 @@ public function addShould(ConditionInterface $condition): Filter
         return $this;
     }
 
+    public function addMinShould(ConditionInterface $condition): Filter
+    {
+        $this->minShould[] = $condition;
+
+        return $this;
+    }
+
+    public function setMinShouldCount(int $count): Filter
+    {
+        $this->minShouldCount = $count;
+
+        return $this;
+    }
+
     public function toArray(): array
     {
         $filter = [];
@@ -59,6 +75,16 @@ public function toArray(): array
                 $filter['should'][] = $should->toArray();
             }
         }
+        if ($this->minShould && $this->minShouldCount) {
+            $filter['min_should'] = [
+                'conditions' => [],
+                'min_count' => $this->minShouldCount
+            ];
+            foreach ($this->minShould as $should) {
+                /** ConditionInterface $must */
+                $filter['min_should']['conditions'][] = $should->toArray();
+            }
+        }
 
         return $filter;
     }

src/Models/Request/Points/BatchRecommendRequest.php

@@ -0,0 +1,50 @@
+<?php
+/**
+ * RecommendRequest
+ *
+ * @since     Jun 2023
+ * @author    Greg Priday <[email protected]>
+ */
+namespace Qdrant\Models\Request\Points;
+
+use Qdrant\Exception\InvalidArgumentException;
+use Qdrant\Models\Filter\Filter;
+use Qdrant\Models\Traits\ProtectedPropertyAccessor;
+
+class BatchRecommendRequest
+{
+    use ProtectedPropertyAccessor;
+
+    /** @var RecommendRequest[] $searches */
+    protected array $searches = [];
+
+    /**
+     * @param RecommendRequest[] $searches
+     */
+    public function __construct(array $searches)
+    {
+        foreach ($searches as $search) {
+            $this->addSearch($search);
+        }
+    }
+
+    public function addSearch(RecommendRequest $request): static
+    {
+        $this->searches[] = $request;
+
+        return $this;
+    }
+
+    public function toArray(): array
+    {
+        $searches = [];
+
+        foreach ($this->searches as $search) {
+            $searches[] = $search->toArray();
+        }
+
+        return [
+            'searches' => $searches
+        ];
+    }
+}

src/Models/Request/RecommendRequest.php → src/Models/Request/Points/RecommendRequest.php

@@ -5,15 +5,31 @@
  * @since     Jun 2023
  * @author    Greg Priday <[email protected]>
  */
-namespace Qdrant\Models\Request;
+namespace Qdrant\Models\Request\Points;
 
+use Qdrant\Exception\InvalidArgumentException;
 use Qdrant\Models\Filter\Filter;
 use Qdrant\Models\Traits\ProtectedPropertyAccessor;
 
 class RecommendRequest
 {
     use ProtectedPropertyAccessor;
 
+    /**
+     * average_vector - Average positive and negative vectors and create a single query with the formula
+     * query = avg_pos + avg_pos - avg_neg. Then performs normal search.
+     */
+    const STRATEGY_AVERAGE_VECTOR = 'average_vector';
+
+    /**
+     * best_score - Uses custom search objective. Each candidate is compared against all examples, its
+     * score is then chosen from the max(max_pos_score, max_neg_score). If the max_neg_score is chosen
+     * then it is squared and negated, otherwise it is just the max_pos_score.
+     */
+    const STRATEGY_BEST_SCORE = 'best_score';
+
+    protected ?string $shardKey = null;
+    protected ?string $strategy = null;
     protected ?Filter $filter = null;
     protected ?string $using = null;
     protected ?int $limit = null;
@@ -31,6 +47,27 @@ public function setFilter(Filter $filter): static
         return $this;
     }
 
+    public function setShardKey(string $shardKey): static
+    {
+        $this->shardKey = $shardKey;
+
+        return $this;
+    }
+
+    public function setStrategy(string $strategy): static
+    {
+        $strategies = [
+            self::STRATEGY_AVERAGE_VECTOR,
+            self::STRATEGY_BEST_SCORE,
+        ];
+        if (!in_array($strategy, $strategies)) {
+            throw new InvalidArgumentException('Invalid strategy for recommendation.');
+        }
+        $this->strategy = $strategy;
+
+        return $this;
+    }
+
     public function setScoreThreshold(float $scoreThreshold): static
     {
         $this->scoreThreshold = $scoreThreshold;
@@ -66,19 +103,25 @@ public function toArray(): array
             'negative' => $this->negative,
         ];
 
+        if ($this->shardKey !== null) {
+            $body['shard_key'] = $this->shardKey;
+        }
         if ($this->filter !== null && $this->filter->toArray()) {
             $body['filter'] = $this->filter->toArray();
         }
-        if($this->scoreThreshold) {
+        if($this->scoreThreshold !== null) {
             $body['score_threshold'] = $this->scoreThreshold;
         }
-        if ($this->using) {
+        if ($this->using !== null) {
             $body['using'] = $this->using;
         }
-        if ($this->limit) {
+        if ($this->limit !== null) {
             $body['limit'] = $this->limit;
         }
-        if ($this->offset) {
+        if ($this->strategy !== null) {
+            $body['strategy'] = $this->strategy;
+        }
+        if ($this->offset !== null) {
             $body['offset'] = $this->offset;
         }