3 files changed, 67 insertions, 0 deletions
diff --git a/matrix-specification/Data/Capability/BooleanCapability.php b/matrix-specification/Data/Capability/BooleanCapability.php
new file mode 100644
index 0000000..13cb4de
--- /dev/null
+++ b/matrix-specification/Data/Capability/BooleanCapability.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Matrix\Data\Capability;
+
+class BooleanCapability implements \JsonSerializable
+{
+  public function __construct(
+    private bool $enabled,
+  )
+  {}
+
+  public function jsonSerialize(): array
+  {
+    return [
+      "enabled" => $this->enabled,
+    ];
+  }
+}
diff --git a/matrix-specification/Data/Capability/ProfileFieldsCapability.php b/matrix-specification/Data/Capability/ProfileFieldsCapability.php
new file mode 100644
index 0000000..91b0fc4
--- /dev/null
+++ b/matrix-specification/Data/Capability/ProfileFieldsCapability.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Matrix\Data\Capability;
+
+class ProfileFieldsCapability implements \JsonSerializable
+{
+  /**
+   * @param string[] $allowed
+   * @param string[] $disallowed
+   */
+  public function __construct(
+    private bool $enabled,
+    private ?array $allowed = null,
+    private ?array $disallowed = null,
+  )
+  {}
+
+  public function jsonSerialize(): array
+  {
+    return array_filter([
+      "allowed" => $this->allowed,
+      "disallowed" => $this->disallowed,
+      "enabled" => $this->enabled,
+    ], fn ($value) => ! is_null($value));
+  }
+}
diff --git a/matrix-specification/Data/Capability/RoomVersionsCapability.php b/matrix-specification/Data/Capability/RoomVersionsCapability.php
new file mode 100644
index 0000000..d2a5cd7
--- /dev/null
+++ b/matrix-specification/Data/Capability/RoomVersionsCapability.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Matrix\Data\Capability;
+
+class RoomVersionsCapability implements \JsonSerializable
+{
+  /**
+   * @param array<string, string> $available
+   */
+  public function __construct(
+    private array $available,
+    private string $default,
+  )
+  {}
+
+  public function jsonSerialize(): array
+  {
+    return [
+      "available" => $this->available,
+      "default" => $this->default,
+    ];
+  }
+}