bp_nouveau_ajax_messages_send_reply()

function bp_nouveau_ajax_messages_send_reply() {
	$response = array(
		'feedback' => __( 'There was a problem sending your reply. Please try again.', 'buddyboss' ),
		'type'     => 'error',
	);

	// Verify nonce
	if ( empty( $_POST['nonce'] ) || ! wp_verify_nonce( $_POST['nonce'], 'messages_send_message' ) ) {
		wp_send_json_error( $response );
	}

	if ( empty( $_POST['content'] ) || empty( $_POST['thread_id'] ) ) {
		$response['feedback'] = __( 'Please add some content to your message.', 'buddyboss' );

		wp_send_json_error( $response );
	}

	$thread_id = (int) $_POST['thread_id'];

	if ( ! bp_current_user_can( 'bp_moderate' ) && ( ! messages_is_valid_thread( $thread_id ) || ! messages_check_thread_access( $thread_id ) ) ) {
		wp_send_json_error( $response );
	}

	$new_reply = messages_new_message( array(
		'thread_id' => $thread_id,
		'subject'   => ! empty( $_POST['subject'] ) ? $_POST['subject'] : false,
		'content'   => $_POST['content'],
		'date_sent' => $date_sent = bp_core_current_time(),
		'error_type' => 'wp_error',
	) );

	if ( is_wp_error( $new_reply ) ) {
		$response['feedback'] = $new_reply->get_error_message();
		wp_send_json_error( $response );
	}

	// Send the reply.
	if ( empty( $new_reply ) ) {
		wp_send_json_error( $response );
	}

	// Get the message by pretending we're in the message loop.
	global $thread_template, $media_template;

	$bp           = buddypress();
	$reset_action = $bp->current_action;

	// Override bp_current_action().
	$bp->current_action = 'view';

	bp_thread_has_messages( array( 'thread_id' => $thread_id , 'before' => $date_sent ) );

	// Set current message to current key.
	$thread_template->current_message = -1;

	// Now manually iterate message like we're in the loop.
	bp_thread_the_message();

	// Manually call oEmbed
	// this is needed because we're not at the beginning of the loop.
	bp_messages_embed();

	// Output single message template part.
	$reply = array(
		'id'            => bp_get_the_thread_message_id(),
		'content'       => do_shortcode( bp_get_the_thread_message_content() ),
		'sender_id'     => bp_get_the_thread_message_sender_id(),
		'sender_name'   => esc_html( bp_get_the_thread_message_sender_name() ),
		'sender_link'   => bp_get_the_thread_message_sender_link(),
		'sender_is_you' => bp_get_the_thread_message_sender_id() === bp_loggedin_user_id(),
		'sender_avatar' => esc_url( bp_core_fetch_avatar( array(
			'item_id' => bp_get_the_thread_message_sender_id(),
			'object'  => 'user',
			'type'    => 'thumb',
			'width'   => 32,
			'height'  => 32,
			'html'    => false,
		) ) ),
		'date'          => bp_get_the_thread_message_date_sent() * 1000,
		'display_date'  => bp_get_the_thread_message_time_since(),
	);

	if ( bp_is_active( 'messages', 'star' ) ) {
		$star_link = bp_get_the_message_star_action_link( array(
			'message_id' => bp_get_the_thread_message_id(),
			'url_only'  => true,
		) );

		$reply['star_link']  = $star_link;
		$reply['is_starred'] = array_search( 'unstar', explode( '/', $star_link ) );
	}

	if ( bp_is_active( 'media' ) && bp_is_messages_media_support_enabled() ) {
		$media_ids = bp_messages_get_meta( bp_get_the_thread_message_id(), 'bp_media_ids', true );

		if ( ! empty( $media_ids ) && bp_has_media( array( 'include' => $media_ids, 'order_by' => 'menu_order', 'sort' => 'ASC' ) ) ) {
			$reply['media'] = array();
			while ( bp_media() ) {
				bp_the_media();

				$reply['media'][] = array(
					'id'        => bp_get_media_id(),
					'title'     => bp_get_media_title(),
					'thumbnail' => bp_get_media_attachment_image_thumbnail(),
					'full'      => bp_get_media_attachment_image(),
					'meta'      => $media_template->media->attachment_data->meta,
				);
			}
		}
	}

	if ( bp_is_active( 'media' ) && bp_is_messages_gif_support_enabled() ) {
		$gif_data = bp_messages_get_meta( bp_get_the_thread_message_id(), '_gif_data', true );

		if ( ! empty( $gif_data ) ) {
			$preview_url = wp_get_attachment_url( $gif_data['still'] );
			$video_url = wp_get_attachment_url( $gif_data['mp4'] );
			$reply['gif'] = array(
				'preview_url' => $preview_url,
				'video_url' => $video_url,
			);
		}
	}

	$extra_content = bp_nouveau_messages_catch_hook_content( array(
		'beforeMeta'    => 'bp_before_message_meta',
		'afterMeta'     => 'bp_after_message_meta',
		'beforeContent' => 'bp_before_message_content',
		'afterContent'  => 'bp_after_message_content',
	) );

	if ( array_filter( $extra_content ) ) {
		$reply = array_merge( $reply, $extra_content );
	}

	// Clean up the loop.
	bp_thread_messages();

	// Remove the bp_current_action() override.
	$bp->current_action = $reset_action;

	// set a flag
	$reply['is_new'] = true;

	wp_send_json_success( array(
		'messages' => array( $reply ),
		'feedback' => __( 'Your reply was sent successfully', 'buddyboss' ),
		'type'     => 'success',
	) );
}