Implement delete_event()

includes/event/event-repository-cached.php

@@ -31,6 +31,11 @@ public function update_event( Event $event ) {
 		return $event_id_or_error;
 	}
 
+	public function delete_event( Event $event ) {
+		parent::delete_event( $event );
+		$this->invalidate_cache();
+	}
+
 	public function get_current_events( int $page = -1, int $page_size = -1 ): Events_Query_Result {
 		$this->assert_pagination_arguments( $page, $page_size );
 

includes/event/event-repository-interface.php

@@ -27,6 +27,13 @@ public function insert_event( Event $event );
 	 */
 	public function update_event( Event $event );
 
+	/**
+	 * @param Event $event Event to delete.
+	 *
+	 * @return Event|false Deleted event or false on error.
+	 */
+	public function delete_event( Event $event );
+
 	/**
 	 * @throws EventNotFound
 	 */

includes/event/event-repository.php

@@ -9,6 +9,7 @@
 use WP_Post;
 use WP_Query;
 use Wporg\TranslationEvents\Attendee_Repository;
+use Wporg\TranslationEvents\Stats_Calculator;
 use Wporg\TranslationEvents\Translation_Events;
 
 class Event_Repository implements Event_Repository_Interface {
@@ -57,6 +58,17 @@ public function update_event( Event $event ) {
 		return $event->id();
 	}
 
+	public function delete_event( Event $event ) {
+		$result = wp_delete_post( $event->id() );
+		if ( ! $result ) {
+			return false;
+		}
+
+		// TODO: Delete stats for event.
+
+		return $event;
+	}
+
 	public function get_event( int $id ): Event {
 		$post = $this->get_event_post( $id );
 

tests/event/event-repository-cached.php

@@ -76,4 +76,13 @@ public function test_invalidates_cache_when_events_are_updated() {
 		$this->repository->update_event( $event );
 		$this->assertFalse( wp_cache_get( 'translation-events-active-events' ) );
 	}
+
+	public function test_invalidates_cache_when_events_are_deleted() {
+		$event_id = $this->event_factory->create_active();
+		$event    = $this->repository->get_event( $event_id );
+
+		wp_cache_set( 'translation-events-active-events', 'foo' );
+		$this->repository->delete_event( $event );
+		$this->assertFalse( wp_cache_get( 'translation-events-active-events' ) );
+	}
 }

tests/event/event-repository.php

@@ -10,14 +10,17 @@
 use Wporg\TranslationEvents\Event\Event_Repository;
 use Wporg\TranslationEvents\Event\EventNotFound;
 use Wporg\TranslationEvents\Tests\Event_Factory;
+use Wporg\TranslationEvents\Tests\Stats_Factory;
 
 class Event_Repository_Test extends GP_UnitTestCase {
 	private Event_Factory $event_factory;
+	private Stats_Factory $stats_factory;
 	private Event_Repository $repository;
 
 	public function setUp(): void {
 		parent::setUp();
 		$this->event_factory = new Event_Factory();
+		$this->stats_factory = new Stats_Factory();
 		$this->repository    = new Event_Repository( new Attendee_Repository() );
 
 		$this->set_normal_user_as_current();
@@ -111,6 +114,16 @@ public function test_update_event() {
 		$this->assertEquals( $updated_description, $updated_event->description() );
 	}
 
+	public function test_delete_event() {
+		$event_id = $this->event_factory->create_active();
+
+		$event = $this->repository->get_event( $event_id );
+		$this->repository->delete_event( $event );
+
+		$this->expectException( EventNotFound::class );
+		$this->repository->get_event( $event_id );
+	}
+
 	public function test_get_active_events() {
 		$now       = new DateTimeImmutable( 'now', new DateTimeZone( 'UTC' ) );
 		$event1_id = $this->event_factory->create_active( array(), $now );