1 files changed, 36 insertions, 0 deletions
diff --git a/matrix-specification/Data/Filters/EventFilter.php b/matrix-specification/Data/Filters/EventFilter.php
new file mode 100644
index 0000000..98788ad
--- /dev/null
+++ b/matrix-specification/Data/Filters/EventFilter.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Matrix\Data\Filters;
+
+class EventFilter implements \JsonSerializable
+{
+  /**
+   * @param string[] $notSenders
+   * @param string[] $notTypes
+   * @param string[] $senders
+   * @param string[] $types
+   */
+  public function __construct(
+    private ?int $limit = null,
+    private ?array $notSenders = null,
+    private ?array $notTypes = null,
+    private ?array $senders = null,
+    private ?array $types = null,
+  )
+  {
+    if (! is_null($limit) && $limit <= 0) {
+      throw new \InvalidArgumentException("limit must be an integer greater than 0");
+    }
+  }
+
+  public function jsonSerialize(): array
+  {
+    return array_filter([
+      "limit" => $this->limit,
+      "not_senders" => $this->notSenders,
+      "not_types" => $this->notTypes,
+      "senders" => $this->senders,
+      "types" => $this->types,
+    ], "is_null");
+  }
+}