bp_attachments_enqueue_scripts( string $class = '' )

function bp_attachments_enqueue_scripts( $class = '' ) {
	// Enqueue me just once per page, please.
	if ( did_action( 'bp_attachments_enqueue_scripts' ) ) {
		return;
	}

	if ( ! $class || ! class_exists( $class ) ) {
		return new WP_Error( 'missing_parameter' );
	}

	// Get an instance of the class and get the script data.
	$attachment = new $class;
	$script_data  = $attachment->script_data();

	$args = bp_parse_args( $script_data, array(
		'action'            => '',
		'file_data_name'    => '',
		'max_file_size'     => 0,
		'browse_button'     => 'bp-browse-button',
		'container'         => 'bp-upload-ui',
		'drop_element'      => 'drag-drop-area',
		'bp_params'         => array(),
		'extra_css'         => array(),
		'extra_js'          => array(),
		'feedback_messages' => array(),
	), 'attachments_enqueue_scripts' );

	if ( empty( $args['action'] ) || empty( $args['file_data_name'] ) ) {
		return new WP_Error( 'missing_parameter' );
	}

	// Get the BuddyPress uploader strings.
	$strings = bp_attachments_get_plupload_l10n();

	// Get the BuddyPress uploader settings.
	$settings = bp_attachments_get_plupload_default_settings();

	// Set feedback messages.
	if ( ! empty( $args['feedback_messages'] ) ) {
		$strings['feedback_messages'] = $args['feedback_messages'];
	}

	// Use a temporary var to ease manipulation.
	$defaults = $settings['defaults'];

	// Set the upload action.
	$defaults['multipart_params']['action'] = $args['action'];

	// Set BuddyPress upload parameters if provided.
	if ( ! empty( $args['bp_params'] ) ) {
		$defaults['multipart_params']['bp_params'] = $args['bp_params'];
	}

	// Merge other arguments.
	$ui_args = array_intersect_key( $args, array(
		'file_data_name' => true,
		'browse_button'  => true,
		'container'      => true,
		'drop_element'   => true,
	) );

	$defaults = array_merge( $defaults, $ui_args );

	if ( ! empty( $args['max_file_size'] ) ) {
		$defaults['filters']['max_file_size'] = $args['max_file_size'] . 'b';
	}

	// Specific to BuddyPress Avatars.
	if ( 'bp_avatar_upload' === $defaults['multipart_params']['action'] ) {

		// Include the cropping informations for avatars.
		$settings['crop'] = array(
			'full_h'  => bp_core_avatar_full_height(),
			'full_w'  => bp_core_avatar_full_width(),
		);

		// Avatar only need 1 file and 1 only!
		$defaults['multi_selection'] = false;

		// Does the object already has an avatar set.
		$has_avatar = $defaults['multipart_params']['bp_params']['has_avatar'];

		// What is the object the avatar belongs to.
		$object = $defaults['multipart_params']['bp_params']['object'];

		// Init the Avatar nav.
		$avatar_nav = array(
			'upload' => array( 'id' => 'upload', 'caption' => __( 'Upload', 'buddyboss' ), 'order' => 0  ),

			// The delete view will only show if the object has an avatar.
			'delete' => array( 'id' => 'delete', 'caption' => __( 'Delete', 'buddyboss' ), 'order' => 100, 'hide' => (int) ! $has_avatar ),
		);

		// Create the Camera Nav if the WebCam capture feature is enabled.
		if ( bp_avatar_use_webcam() && 'user' === $object ) {
			$avatar_nav['camera'] = array( 'id' => 'camera', 'caption' => __( 'Take Photo', 'buddyboss' ), 'order' => 10 );

			// Set warning messages.
			$strings['camera_warnings'] = array(
				'requesting'  => __( 'Please allow application access to your camera.', 'buddyboss'),
				'loading'     => __( 'Please wait while your camera connects.', 'buddyboss' ),
				'loaded'      => __( 'Camera loaded. Click "Capture" to take a photo.', 'buddyboss' ),
				'noaccess'    => __( 'Webcam not found or permission was denied. Please upload a photo.', 'buddyboss' ),
				'errormsg'    => __( 'Your browser is not supported. Please upload a photo instead.', 'buddyboss' ),
				'videoerror'  => __( 'Video error. Please upload a photo instead.', 'buddyboss' ),
				'ready'       => __( 'Your profile photo is ready. Click "Save" to use this photo.', 'buddyboss' ),
				'nocapture'   => __( 'No photo captured. Click "Capture" to take your photo.', 'buddyboss' ),
			);
		}

		/**
		 * Use this filter to add a navigation to a custom tool to set the object's avatar.
		 *
		 * @since BuddyPress 2.3.0
		 *
		 * @param array  $avatar_nav {
		 *     An associative array of available nav items where each item is an array organized this way:
		 *     $avatar_nav[ $nav_item_id ].
		 *     @type string $nav_item_id The nav item id in lower case without special characters or space.
		 *     @type string $caption     The name of the item nav that will be displayed in the nav.
		 *     @type int    $order       An integer to specify the priority of the item nav, choose one.
		 *                               between 1 and 99 to be after the uploader nav item and before the delete nav item.
		 *     @type int    $hide        If set to 1 the item nav will be hidden
		 *                               (only used for the delete nav item).
		 * }
		 * @param string $object The object the avatar belongs to (eg: user or group).
		 */
		$settings['nav'] = bp_sort_by_key( apply_filters( 'bp_attachments_avatar_nav', $avatar_nav, $object ), 'order', 'num' );

	// Specific to BuddyPress cover photos.
	} elseif ( 'bp_cover_image_upload' === $defaults['multipart_params']['action'] ) {

		// cover photos only need 1 file and 1 only!
		$defaults['multi_selection'] = false;

		// Default cover component is xprofile.
		$cover_component = 'xprofile';

		// Get the object we're editing the cover photo of.
		$object = $defaults['multipart_params']['bp_params']['object'];

		// Set the cover component according to the object.
		if ( 'group' === $object ) {
			$cover_component = 'groups';
		} elseif ( 'user' !== $object ) {
			$cover_component = apply_filters( 'bp_attachments_cover_image_ui_component', $cover_component );
		}
		// Get cover photo advised dimensions.
		$cover_dimensions = bp_attachments_get_cover_image_dimensions( $cover_component );

		// Set warning messages.
		$strings['cover_image_warnings'] = apply_filters( 'bp_attachments_cover_image_ui_warnings', array(
			'dimensions'  => sprintf(
					__( 'For best results, upload an image that is %1$spx by %2$spx or larger.', 'buddyboss' ),
					(int) $cover_dimensions['width'],
					(int) $cover_dimensions['height']
				),
		) );
	}

	// Set Plupload settings.
	$settings['defaults'] = $defaults;

	/**
	 * Enqueue some extra styles if required
	 *
	 * Extra styles need to be registered.
	 */
	if ( ! empty( $args['extra_css'] ) ) {
		foreach ( (array) $args['extra_css'] as $css ) {
			if ( empty( $css ) ) {
				continue;
			}

			wp_enqueue_style( $css );
		}
	}

	wp_enqueue_script ( 'bp-plupload' );
	wp_localize_script( 'bp-plupload', 'BP_Uploader', array( 'strings' => $strings, 'settings' => $settings ) );

	/**
	 * Enqueue some extra scripts if required
	 *
	 * Extra scripts need to be registered.
	 */
	if ( ! empty( $args['extra_js'] ) ) {
		foreach ( (array) $args['extra_js'] as $js ) {
			if ( empty( $js ) ) {
				continue;
			}

			wp_enqueue_script( $js );
		}
	}

	/**
	 * Fires at the conclusion of bp_attachments_enqueue_scripts()
	 * to avoid the scripts to be loaded more than once.
	 *
	 * @since BuddyPress 2.3.0
	 */
	do_action( 'bp_attachments_enqueue_scripts' );
}