1 files changed, 126 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Elastic/QueryEngine/Condition.php b/www/wiki/extensions/SemanticMediaWiki/src/Elastic/QueryEngine/Condition.php
new file mode 100644
index 00000000..a04acd11
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Elastic/QueryEngine/Condition.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace SMW\Elastic\QueryEngine;
+
+/**
+ * @license GNU GPL v2+
+ * @since 3.0
+ *
+ * @author mwjames
+ */
+class Condition {
+
+	const TYPE_MUST = 'must';
+	const TYPE_SHOULD = 'should';
+	const TYPE_MUST_NOT = 'must_not';
+	const TYPE_FILTER = 'filter';
+
+	/**
+	 * @var array
+	 */
+	private $parameters = [];
+
+	/**
+	 * @var array
+	 */
+	private $logs = [];
+
+	/**
+	 * @var string
+	 */
+	private $type = 'must';
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param Condition|array $parameters
+	 */
+	public function __construct( $parameters = [] ) {
+		$this->parameters = $parameters;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param string $type
+	 */
+	public function type( $type ) {
+		$this->type = $type;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return string
+	 */
+	public function getType() {
+		return $this->type;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @param mixed $log
+	 */
+	public function log( $log ) {
+		$this->logs[] = $log;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return array
+	 */
+	public function getLogs() {
+		return $this->logs;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return array
+	 */
+	public function toArray() {
+
+		$params = $this->params( $this->parameters, $this->logs );
+
+		if ( $this->type === '' || $this->type === null || $params === [] ) {
+			return $params;
+		}
+
+		return [ 'bool' => [ $this->type => $params ] ];
+	}
+
+	private function params( $params, &$logs ) {
+
+		$condition = $params;
+
+		if ( $condition instanceof Condition ) {
+			$params = $condition->toArray();
+
+			if ( ( $rlogs = $condition->getLogs() ) !== [] ) {
+				$logs[] = $rlogs;
+			}
+		}
+
+		if ( !is_array( $params ) ) {
+			return $params;
+		}
+
+		foreach ( $params as $k => $condition ) {
+			$params[$k] = $this->params( $condition, $logs );
+		}
+
+		return $params;
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * @return string
+	 */
+	public function __toString() {
+		return json_encode( $this->toArray(), JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
+	}
+
+}