Show save button.

class-toptal-save-public.php

/**
 * Show save button.
 *
 * @since    1.0.0
 */
public function show_save_button( $item_id = '' ) {

	// Get our item ID
	if ( empty( $item_id ) ) {

		$item_id = get_queried_object_id();

	}

	// Get text for the button states
	$options = get_option( $this->plugin_name . '-settings' );
	$item_save_text = $options['text-save'];
	$item_unsave_text = $options['text-unsave'];

	// Get membership status option
	$status = $this->get_user_status();

	// Check if the user is logged in or not, and then check if the item is saved or not
	if ( is_user_logged_in() ) {

		// Get our saved items
		$saved_items = get_user_meta( get_current_user_id(), 'toptal_saved_items', true );

		// If nothing is saved make $saved_items variable an array
		if ( empty( $saved_items ) ) {
			
			$saved_items = array();

		}

		// Check if the current item is saved or not
		if ( in_array( $item_id, $saved_items ) ) {

			$is_saved = true;

		} else {

			$is_saved = false;

		}

	} else {

		// Get our saved items
		$saved_items = $this->toptal_get_cookie( $this->get_unique_cookie_name() );

		// Check if the current item is saved or not
		if ( in_array( $item_id, $saved_items ) ) {

			$is_saved = true;

		} else {

			$is_saved = false;

		}

	}

	if ( $status == 1 && is_user_logged_in() && is_singular() || $status == 0 && is_singular() ) {

		// Depending on the item status (saved or not), display different things.
		if ( $is_saved == false ) {

			return '<a href="#" class="toptal-save-button" data-nonce="' . wp_create_nonce( 'toptal_save_nonce' ) . '" data-item-id="' . esc_attr( $item_id ) . '"><span class="toptal-save-icon"></span><span class="toptal-save-text">' . esc_html( $item_save_text ) . '</span></a>';

		} else {

			return '<a href="#" class="toptal-save-button saved" data-nonce="' . wp_create_nonce( 'toptal_save_nonce' ) . '" data-item-id="' . esc_attr( $item_id ) . '"><span class="toptal-save-icon"></span><span class="toptal-save-text">' . esc_html( $item_unsave_text ) . '</span></a>';

		}

	}

}