feat(query): add span near query

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Spamercz

doc/02-query-objects.md

@@ -614,6 +614,21 @@ new \Spameri\ElasticQuery\Query\SpanFirst(
 );
 ```
 
+##### SpanNear Query
+Match multiple span clauses within `slop` positions of each other.
+- Class: `\Spameri\ElasticQuery\Query\SpanNear`
+- [Documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-span-near-query.html)
+- [Implementation](https://github.com/Spameri/ElasticQuery/blob/master/src/Query/SpanNear.php)
+
+```php
+$span = new \Spameri\ElasticQuery\Query\SpanNear(
+	new \Spameri\ElasticQuery\Query\SpanTerm('field', 'value1'),
+	slop: 12,
+	inOrder: false,
+);
+$span->addClause(new \Spameri\ElasticQuery\Query\SpanTerm('field', 'value2'));
+```
+
 ##### SpanTerm Query
 Match a single term in a span-aware way.
 - Class: `\Spameri\ElasticQuery\Query\SpanTerm`

src/Query/SpanNear.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace Spameri\ElasticQuery\Query;
+
+/**
+ * @see https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-span-near-query.html
+ */
+class SpanNear implements \Spameri\ElasticQuery\Query\LeafQueryInterface
+{
+
+	/**
+	 * @var array<int, \Spameri\ElasticQuery\Query\LeafQueryInterface>
+	 */
+	private array $clauses;
+
+
+	public function __construct(
+		\Spameri\ElasticQuery\Query\LeafQueryInterface $clause,
+		private int $slop = 0,
+		private bool $inOrder = true,
+	)
+	{
+		$this->clauses = [$clause];
+	}
+
+
+	public function addClause(\Spameri\ElasticQuery\Query\LeafQueryInterface $clause): void
+	{
+		$this->clauses[] = $clause;
+	}
+
+
+	public function key(): string
+	{
+		$keys = [];
+		foreach ($this->clauses as $clause) {
+			$keys[] = $clause->key();
+		}
+
+		return 'span_near_' . \implode('-', $keys);
+	}
+
+
+	/**
+	 * @return array<string, array<string, mixed>>
+	 */
+	public function toArray(): array
+	{
+		$clauses = [];
+		foreach ($this->clauses as $clause) {
+			$clauses[] = $clause->toArray();
+		}
+
+		return [
+			'span_near' => [
+				'clauses' => $clauses,
+				'slop' => $this->slop,
+				'in_order' => $this->inOrder,
+			],
+		];
+	}
+
+}

tests/SpameriTests/ElasticQuery/Query/SpanNear.phpt

@@ -0,0 +1,66 @@
+<?php declare(strict_types = 1);
+
+namespace SpameriTests\ElasticQuery\Query;
+
+require_once __DIR__ . '/../../bootstrap.php';
+
+
+class SpanNear extends \Tester\TestCase
+{
+
+	private const INDEX = 'spameri_test_query_span_near';
+
+
+	public function setUp(): void
+	{
+		$ch = \curl_init();
+		\curl_setopt($ch, \CURLOPT_URL, \ELASTICSEARCH_HOST . '/' . self::INDEX);
+		\curl_setopt($ch, \CURLOPT_RETURNTRANSFER, 1);
+		\curl_setopt($ch, \CURLOPT_CUSTOMREQUEST, 'PUT');
+		\curl_setopt($ch, \CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
+
+		\curl_exec($ch);
+	}
+
+
+	public function testToArray(): void
+	{
+		$span = new \Spameri\ElasticQuery\Query\SpanNear(
+			new \Spameri\ElasticQuery\Query\SpanTerm('field', 'value1'),
+			slop: 12,
+			inOrder: false,
+		);
+		$span->addClause(new \Spameri\ElasticQuery\Query\SpanTerm('field', 'value2'));
+
+		$array = $span->toArray();
+
+		\Tester\Assert::same(12, $array['span_near']['slop']);
+		\Tester\Assert::false($array['span_near']['in_order']);
+		\Tester\Assert::count(2, $array['span_near']['clauses']);
+	}
+
+
+	public function testKey(): void
+	{
+		$span = new \Spameri\ElasticQuery\Query\SpanNear(
+			new \Spameri\ElasticQuery\Query\SpanTerm('field', 'value1'),
+		);
+
+		\Tester\Assert::same('span_near_span_term_field_value1', $span->key());
+	}
+
+
+	public function tearDown(): void
+	{
+		$ch = \curl_init();
+		\curl_setopt($ch, \CURLOPT_URL, \ELASTICSEARCH_HOST . '/' . self::INDEX);
+		\curl_setopt($ch, \CURLOPT_RETURNTRANSFER, 1);
+		\curl_setopt($ch, \CURLOPT_CUSTOMREQUEST, 'DELETE');
+		\curl_setopt($ch, \CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
+
+		\curl_exec($ch);
+	}
+
+}
+
+(new SpanNear())->run();