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function bd_attachments_cover_image_ajax_upload() {
    // Bail if not a POST action
    if ( 'POST' !== strtoupper( $_SERVER['REQUEST_METHOD'] ) ) {
        wp_die();
    }

    /**
     * Sending the json response will be different if
     * the current Plupload runtime is html4
     */
    $is_html4 = false;
    if ( ! empty( $_POST['html4' ] ) ) {
        $is_html4 = true;
    }

    // Check the nonce
    check_admin_referer( 'bp-uploader' );

    // Init the BuddyPress parameters
    $bp_params = array();

    // We need it to carry on
    if ( ! empty( $_POST['bp_params'] ) ) {
        $bp_params = bp_parse_args( $_POST['bp_params'], array(
            'object'  => 'user',
            'item_id' => bp_loggedin_user_id(),
        ), 'attachments_cover_image_ajax_upload' );
    } else {
        bp_attachments_json_response( false, $is_html4 );
    }

    // We need the object to set the uploads dir filter
    if ( empty( $bp_params['object'] ) ) {
        bp_attachments_json_response( false, $is_html4 );
    }

    // Capability check
    if ( ! bp_attachments_current_user_can( 'edit_cover_image', $bp_params ) ) {
        bp_attachments_json_response( false, $is_html4 );
    }

    $bp          = buddypress();
    $needs_reset = array();

    // Member's cover image
    if ( 'user' === $bp_params['object'] ) {
        $object_data = array( 'dir' => 'members', 'component' => 'xprofile' );

        if ( ! bp_displayed_user_id() && ! empty( $bp_params['item_id'] ) ) {
            $needs_reset = array( 'key' => 'displayed_user', 'value' => $bp->displayed_user );
            $bp->displayed_user->id = $bp_params['item_id'];
        }

    // Group's cover image
    } elseif ( 'group' === $bp_params['object'] ) {
        $object_data = array( 'dir' => 'groups', 'component' => 'groups' );

        if ( ! bp_get_current_group_id() && ! empty( $bp_params['item_id'] ) ) {
            $needs_reset = array( 'component' => 'groups', 'key' => 'current_group', 'value' => $bp->groups->current_group );
            $bp->groups->current_group = groups_get_group( array(
                'group_id'        => $bp_params['item_id'],
                'populate_extras' => false,
            ) );
        }

    // Other object's cover image
    } else {
        $object_data = apply_filters( 'bp_attachments_cover_image_object_dir', array(), $bp_params['object'] );
    }

    // Stop here in case of a missing parameter for the object
    if ( empty( $object_data['dir'] ) || empty( $object_data['component'] ) ) {
        bp_attachments_json_response( false, $is_html4 );
    }

    $cover_image_attachment = new BP_Attachment_Cover_Image();
    $uploaded = $cover_image_attachment->upload( $_FILES );

    // Reset objects
    if ( ! empty( $needs_reset ) ) {
        if ( ! empty( $needs_reset['component'] ) ) {
            $bp->{$needs_reset['component']}->{$needs_reset['key']} = $needs_reset['value'];
        } else {
            $bp->{$needs_reset['key']} = $needs_reset['value'];
        }
    }

    if ( ! empty( $uploaded['error'] ) ) {
        // Upload error response
        bp_attachments_json_response( false, $is_html4, array(
            'type'    => 'upload_error',
            'message' => sprintf( __( 'Upload Failed! Error was: %s', 'buddypress' ), $uploaded['error'] ),
        ) );
    }

    // Default error message
    $error_message = __( 'There was a problem uploading the cover image.', 'buddypress' );

    // Get BuddyPress Attachments Uploads Dir datas
    $bp_attachments_uploads_dir = bp_attachments_uploads_dir_get();

    $cover_subdir = $object_data['dir'] . '/' . $bp_params['item_id'] . '/cover-image';
    $cover_dir    = trailingslashit( $bp_attachments_uploads_dir['basedir'] ) . $cover_subdir;

    if ( ! is_dir( $cover_dir ) ) {
        // Upload error response
        bp_attachments_json_response( false, $is_html4, array(
            'type'    => 'upload_error',
            'message' => $error_message,
        ) );
    }

    /**
     * Generate the cover image so that it fit to feature's dimensions
     *
     * Unlike the Avatar, Uploading and generating the cover image is happening during
     * the same Ajax request, as we already instantiated the BP_Attachment_Cover_Image
     * class, let's use it.
     */
    $cover = bp_attachments_cover_image_generate_file( array(
        'file'            => $uploaded['file'],
        'component'       => $object_data['component'],
        'cover_image_dir' => $cover_dir
    ), $cover_image_attachment );

    if ( ! $cover ) {
        // Upload error response
        bp_attachments_json_response( false, $is_html4, array(
            'type'    => 'upload_error',
            'message' => $error_message,
        ) );
    }

    // Build the url to the file
    $cover_url = trailingslashit( $bp_attachments_uploads_dir['baseurl'] ) . $cover_subdir . '/' . $cover['cover_basename'];

    // Init Feedback code, 1 is success
    $feedback_code = 1;

    // 0 is the size warning
    if ( $cover['is_too_small'] ) {
        $feedback_code = 0;

        $dimensions = bp_attachments_get_cover_image_dimensions( $object_data['component'] );
        bp_attachments_delete_file( array( 'item_id' => $bp_params['item_id'], 'object_dir' => $object_data['dir'], 'type' => 'cover-image' ) );
        //delete the upload
        bp_attachments_json_response( false, $is_html4, array(
            'type'    => 'upload_error',
            'message' => sprintf( __( 'Please upload an image with with atleast %sx%spx size.'), $dimensions['width'], $dimensions['height'] )
        ) );
    }

    // Set the name of the file
    $name = $_FILES['file']['name'];
    $name_parts = pathinfo( $name );
    $name = trim( substr( $name, 0, - ( 1 + strlen( $name_parts['extension'] ) ) ) );

    /**
     * Fires if the new cover image was successfully uploaded.
     *
     * The dynamic portion of the hook will be xprofile in case of a user's
     * cover image, groups in case of a group's cover image. For instance:
     * Use add_action( 'xprofile_cover_image_uploaded' ) to run your specific
     * code once the user has set his cover image.
     *
     * @since 2.4.0
     *
     * @param int $item_id Inform about the item id the cover image was set for.
     */
    do_action( $object_data['component'] . '_cover_image_uploaded', (int) $bp_params['item_id'] );

    // Finally return the cover image url to the UI
    bp_attachments_json_response( true, $is_html4, array(
        'name'          => $name,
        'url'           => $cover_url,
        'feedback_code' => $feedback_code,
    ) );
}
add_action( 'wp_ajax_bp_cover_image_upload', 'bd_attachments_cover_image_ajax_upload' );

remove_action( 'wp_ajax_bp_cover_image_upload', 'bp_attachments_cover_image_ajax_upload' );