<?php
/**
 * WooCommerce Plugin Framework
 *
 * This source file is subject to the GNU General Public License v3.0
 * that is bundled with this package in the file license.txt.
 * It is also available through the world-wide-web at this URL:
 * http://www.gnu.org/licenses/gpl-3.0.html
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@skyverge.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade the plugin to newer
 * versions in the future. If you wish to customize the plugin for your
 * needs please refer to http://www.skyverge.com
 *
 * @author    SkyVerge
 * @copyright Copyright (c) 2013-2019, SkyVerge, Inc.
 * @license   http://www.gnu.org/licenses/gpl-3.0.html GNU General Public License v3.0
 */

namespace SkyVerge\WooCommerce\PluginFramework\v5_4_2\Admin;

defined( 'ABSPATH' ) or exit;

use SkyVerge\WooCommerce\PluginFramework\v5_4_2 as Framework;

if ( ! class_exists( '\\SkyVerge\\WooCommerce\\PluginFramework\\v5_4_2\\Admin\\Setup_Wizard' ) ) :

/**
 * The plugin Setup Wizard class.
 *
 * This creates a setup wizard so that plugins can provide a user-friendly
 * step-by-step interaction for configuring critical plugin options.
 *
 * Based on WooCommerce's \WC_Admin_Setup_Wizard
 *
 * @since 5.2.2
 */
abstract class Setup_Wizard {


	/** the "finish" step ID */
	const ACTION_FINISH = 'finish';


	/** @var string the user capability required to use this wizard */
	protected $required_capability = 'manage_woocommerce';

	/** @var string the current step ID */
	protected $current_step = '';

	/** @var array registered steps to be displayed */
	protected $steps = array();

	/** @var string setup handler ID  */
	private $id;

	/** @var Framework\SV_WC_Plugin plugin instance */
	private $plugin;


	/**
	 * Constructs the class.
	 *
	 * @param Framework\SV_WC_Plugin $plugin plugin instance
	 */
	public function __construct( Framework\SV_WC_Plugin $plugin ) {

		// sanity check for admin and permissions
		if ( ! is_admin() || ! current_user_can( $this->required_capability ) ) {
			return;
		}

		$this->id     = $plugin->get_id();
		$this->plugin = $plugin;

		// register the steps
		$this->register_steps();

		/**
		 * Filters the registered setup wizard steps.
		 *
		 * @since 5.2.2
		 *
		 * @param array $steps registered steps
		 */
		$this->steps = apply_filters( "wc_{$this->id}_setup_wizard_steps", $this->steps, $this );

		// only continue if there are registered steps
		if ( $this->has_steps() ) {

			// if requesting the wizard
			if ( $this->is_setup_page() ) {

				$this->init_setup();

			// otherwise, add the hooks for customizing the regular admin
			} else {

				$this->add_hooks();

				// mark the wizard as complete if specifically requested
				if ( Framework\SV_WC_Helper::get_request( "wc_{$this->id}_setup_wizard_complete" ) ) {
					$this->complete_setup();
				}
			}
		}
	}


	/**
	 * Registers the setup steps.
	 *
	 * Plugins should extend this to register their own steps.
	 *
	 * @since 5.2.2
	 */
	abstract protected function register_steps();


	/**
	 * Adds the action & filter hooks.
	 *
	 * @since 5.2.2
	 */
	protected function add_hooks() {

		// add any admin notices
		add_action( 'admin_notices', array( $this, 'add_admin_notices' ) );

		// add a 'Setup' link to the plugin action links if the wizard hasn't been completed
		if ( ! $this->is_complete() ) {
			add_filter( 'plugin_action_links_' . plugin_basename( $this->get_plugin()->get_plugin_file() ), array( $this, 'add_setup_link' ), 20 );
		}
	}


	/**
	 * Adds any admin notices.
	 *
	 * @since 5.2.2
	 */
	public function add_admin_notices() {

		if ( Framework\SV_WC_Helper::is_current_screen( 'plugins' ) || $this->get_plugin()->is_plugin_settings() ) {

			if ( $this->is_complete() && $this->get_documentation_notice_message() ) {
				$notice_id = "wc_{$this->id}_docs";
				$message   = $this->get_documentation_notice_message();
			} else {
				$notice_id = "wc_{$this->id}_setup";
				$message   = $this->get_setup_notice_message();
			}

			$this->get_plugin()->get_admin_notice_handler()->add_admin_notice( $message, $notice_id, array(
				'always_show_on_settings' => false,
			) );
		}
	}


	/**
	 * Gets the new installation documentation notice message.
	 *
	 * This prompts users to read the docs and is displayed if the wizard has
	 * already been completed.
	 *
	 * @since 5.2.2
	 *
	 * @return string
	 */
	protected function get_documentation_notice_message() {

		if ( $this->get_plugin()->get_documentation_url() ) {

			$message = sprintf(
				/** translators: Placeholders: %1$s - plugin name, %2$s - <a> tag, %3$s - </a> tag */
				__( 'Thanks for installing %1$s! To get started, take a minute to %2$sread the documentation%3$s :)', 'woocommerce-plugin-framework' ),
				esc_html( $this->get_plugin()->get_plugin_name() ),
				'<a href="' . esc_url( $this->get_plugin()->get_documentation_url() )  . '" target="_blank">', '</a>'
			);

		} else {

			$message = '';
		}

		return $message;
	}


	/**
	 * Gets the new installation setup notice message.
	 *
	 * This prompts users to start the setup wizard and is displayed if the
	 * wizard has not yet been completed.
	 *
	 * @since 5.2.2
	 *
	 * @return string
	 */
	protected function get_setup_notice_message() {

		return sprintf(
			/** translators: Placeholders: %1$s - plugin name, %2$s - <a> tag, %3$s - </a> tag */
			__( 'Thanks for installing %1$s! To get started, take a minute to complete these %2$squick and easy setup steps%3$s :)', 'woocommerce-plugin-framework' ),
			esc_html( $this->get_plugin()->get_plugin_name() ),
			'<a href="' . esc_url( $this->get_setup_url() )  . '">', '</a>'
		);
	}


	/**
	 * Adds a 'Setup' link to the plugin action links if the wizard hasn't been completed.
	 *
	 * This will override the plugin's standard "Configure" link with a link to this setup wizard.
	 *
	 * @internal
	 *
	 * @since 5.2.2
	 *
	 * @param array $action_links plugin action links
	 * @return array
	 */
	public function add_setup_link( $action_links ) {

		// remove the standard plugin "Configure" link
		unset( $action_links['configure'] );

		$setup_link = array(
			'setup' => sprintf( '<a href="%s">%s</a>', $this->get_setup_url(), esc_html__( 'Setup', 'woocommerce-plugin-framework' ) ),
		);

		return array_merge( $setup_link, $action_links );
	}


	/**
	 * Initializes setup.
	 *
	 * @since 5.2.2
	 */
	protected function init_setup() {

		// get a step ID from $_GET
		$current_step   = sanitize_key( Framework\SV_WC_Helper::get_request( 'step' ) );
		$current_action = sanitize_key( Framework\SV_WC_Helper::get_request( 'action' ) );

		if ( ! $current_action ) {

			if ( $this->has_step( $current_step ) ) {
				$this->current_step = $current_step;
			} elseif ( $first_step_url = $this->get_step_url( key( $this->steps ) ) ) {
				wp_safe_redirect( $first_step_url );
				exit;
			} else {
				wp_safe_redirect( $this->get_dashboard_url() );
				exit;
			}
		}

		// add the page to WP core
		add_action( 'admin_menu', array( $this, 'add_page' ) );

		// renders the entire setup page markup
		add_action( 'admin_init', array( $this, 'render_page' ) );
	}


	/**
	 * Adds the page to WordPress core.
	 *
	 * While this doesn't output any markup/menu items, it is essential to officially register the page to avoid permissions issues.
	 *
	 * @internal
	 *
	 * @since 5.2.2
	 */
	public function add_page() {

		add_dashboard_page( '', '', $this->required_capability, $this->get_slug(), '' );
	}


	/**
	 * Renders the entire setup page markup.
	 *
	 * @internal
	 *
	 * @since 5.2.2
	 */
	public function render_page() {

		// maybe save and move onto the next step
		$error_message = Framework\SV_WC_Helper::get_post( 'save_step' ) ? $this->save_step( $this->current_step ) : '';

		$page_title = sprintf(
			/* translators: Placeholders: %s - plugin name */
			__( '%s &rsaquo; Setup', 'woocommerce-plugin-framework' ),
			$this->get_plugin()->get_plugin_name()
		);

		// add the step name to the page title
		if ( ! empty( $this->steps[ $this->current_step ]['name'] ) ) {
			$page_title .= " &rsaquo; {$this->steps[ $this->current_step ]['name']}";
		}

		$this->load_scripts_styles();

		ob_start();

		?>
		<!DOCTYPE html>
		<html <?php language_attributes(); ?>>
			<head>
				<meta name="viewport" content="width=device-width" />
				<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
				<title><?php echo esc_html( $page_title ); ?></title>
				<?php wp_print_scripts( 'wc-setup' ); ?>
				<?php do_action( 'admin_print_scripts' ); ?>
				<?php do_action( 'admin_print_styles' ); ?>
				<?php do_action( 'admin_head' ); ?>
			</head>
			<body class="wc-setup wp-core-ui <?php echo esc_attr( $this->get_slug() ); ?>">
				<?php $this->render_header(); ?>
				<?php $this->render_steps(); ?>
				<?php $this->render_content( $error_message ); ?>
				<?php $this->render_footer(); ?>
			</body>
		</html>
		<?php

		exit;
	}


	/**
	 * Saves a step.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id the step ID being saved
     * @return void|string redirects upon success, returns an error message upon failure
	 */
	protected function save_step( $step_id ) {

		$error_message = __( 'Oops! An error occurred, please try again.', 'woocommerce-plugin-framework' );

		try {

			// bail early if the nonce is bad
			if ( ! wp_verify_nonce( Framework\SV_WC_Helper::get_post( 'nonce' ), "wc_{$this->id}_setup_wizard_save" ) ) {
				throw new Framework\SV_WC_Plugin_Exception( $error_message );
			}

			if ( $this->has_step( $step_id ) ) {

				// if the step has a saving callback defined, save the form fields
				if ( is_callable( $this->steps[ $step_id ]['save'] ) ) {
					call_user_func( $this->steps[ $step_id ]['save'], $this );
				}

				// move to the next step
				wp_safe_redirect( $this->get_next_step_url( $step_id ) );
				exit;
			}

		} catch ( Framework\SV_WC_Plugin_Exception $exception ) {

			return $exception->getMessage() ? $exception->getMessage() : $error_message;
		}
	}


	/**
	 * Registers and enqueues the wizard's scripts and styles.
	 *
	 * @since 5.2.2
	 */
	protected function load_scripts_styles() {

		// block UI
		wp_register_script( 'jquery-blockui', WC()->plugin_url() . '/assets/js/jquery-blockui/jquery.blockUI.min.js', array( 'jquery' ), '2.70', true );

		// enhanced dropdowns
		wp_register_script( 'selectWoo', WC()->plugin_url() . '/assets/js/selectWoo/selectWoo.full.min.js', array( 'jquery' ), '1.0.0' );
		wp_register_script( 'wc-enhanced-select', WC()->plugin_url() . '/assets/js/admin/wc-enhanced-select.min.js', array( 'jquery', 'selectWoo' ), $this->get_plugin()->get_version() );
		wp_localize_script(
			'wc-enhanced-select',
			'wc_enhanced_select_params',
			array(
				'i18n_no_matches'           => _x( 'No matches found', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_ajax_error'           => _x( 'Loading failed', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_input_too_short_1'    => _x( 'Please enter 1 or more characters', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_input_too_short_n'    => _x( 'Please enter %qty% or more characters', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_input_too_long_1'     => _x( 'Please delete 1 character', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_input_too_long_n'     => _x( 'Please delete %qty% characters', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_selection_too_long_1' => _x( 'You can only select 1 item', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_selection_too_long_n' => _x( 'You can only select %qty% items', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_load_more'            => _x( 'Loading more results&hellip;', 'enhanced select', 'woocommerce-plugin-framework' ),
				'i18n_searching'            => _x( 'Searching&hellip;', 'enhanced select', 'woocommerce-plugin-framework' ),
				'ajax_url'                  => admin_url( 'admin-ajax.php' ),
				'search_products_nonce'     => wp_create_nonce( 'search-products' ),
				'search_customers_nonce'    => wp_create_nonce( 'search-customers' ),
			)
		);

		// WooCommerce Setup core styles
		wp_enqueue_style( 'woocommerce_admin_styles', WC()->plugin_url() . '/assets/css/admin.css', array(), $this->get_plugin()->get_version() );
		wp_enqueue_style( 'wc-setup', WC()->plugin_url() . '/assets/css/wc-setup.css', array( 'dashicons', 'install' ), $this->get_plugin()->get_version() );

		// framework bundled styles
		wp_enqueue_style( 'sv-wc-admin-setup', $this->get_plugin()->get_framework_assets_url() . '/css/admin/sv-wc-plugin-admin-setup-wizard.min.css', array( 'wc-setup' ), $this->get_plugin()->get_version() );
		wp_enqueue_script( 'sv-wc-admin-setup', $this->get_plugin()->get_framework_assets_url() . '/js/admin/sv-wc-plugin-admin-setup-wizard.min.js', array( 'jquery', 'wc-enhanced-select', 'jquery-blockui' ), $this->get_plugin()->get_version() );
	}


	/** Header Methods ************************************************************************************************/


	/**
	 * Renders the header markup.
	 *
	 * @since 5.2.2
	 */
	protected function render_header() {

		$title     = $this->get_plugin()->get_plugin_name();
		$link_url  = $this->get_plugin()->get_sales_page_url();
		$image_url = $this->get_header_image_url();

		$header_content = $image_url ? '<img src="' . esc_url( $image_url ) . '" alt="' . esc_attr( $title ) . '" />' : $title;

		?>
		<h1 id="wc-logo" class="sv-wc-plugin-logo <?php echo esc_attr( 'wc-' . $this->get_plugin()->get_id_dasherized() . '-logo' ); ?>">
			<?php if ( $link_url ) : ?>
				<a href="<?php echo esc_url( $link_url ); ?>" target="_blank"><?php echo $header_content; ?></a>
			<?php else : ?>
				<?php echo esc_html( $header_content ); ?>
			<?php endif; ?>
		</h1>
		<?php
	}


	/**
	 * Gets the header image URL.
	 *
	 * Plugins can override this to point to their own branding image URL.
	 *
	 * @since 5.2.2
	 *
	 * @return string
	 */
	protected function get_header_image_url() {

		return '';
	}


	/**
	 * Renders the step list.
	 *
	 * This displays a list of steps, marking them as complete or upcoming as sort of a progress bar.
	 *
	 * @since 5.2.2
	 */
	protected function render_steps() {

		?>
		<ol class="wc-setup-steps">

			<?php foreach ( $this->steps as $id => $step ) : ?>

				<?php if ( $id === $this->current_step ) : ?>
					<li class="active"><?php echo esc_html( $step['name'] ); ?></li>
				<?php elseif ( $this->is_step_complete( $id ) ) : ?>
					<li class="done"><a href="<?php echo esc_url( $this->get_step_url( $id ) ); ?>"><?php echo esc_html( $step['name'] ); ?></a></li>
				<?php else : ?>
					<li><?php echo esc_html( $step['name'] ); ?></li>
				<?php endif;?>

			<?php endforeach; ?>

			<li class="<?php echo $this->is_finished() ? 'done' : ''; ?>"><?php esc_html_e( 'Ready!', 'woocommerce-plugin-framework' ); ?></li>

		</ol>
		<?php
	}


	/** Content Methods ***********************************************************************************************/


	/**
	 * Renders the setup content.
	 *
	 * This will display the welcome screen, finished screen, or a specific step's markup.
	 *
	 * @since 5.2.2
	 *
	 * @param string $error_message custom error message
	 */
	protected function render_content( $error_message = '' ) {

		?>
		<div class="wc-setup-content sv-wc-plugin-admin-setup-content <?php echo esc_attr( $this->get_slug() ) . '-content'; ?>">

			<?php if ( $this->is_finished() ) : ?>

				<?php $this->render_finished(); ?>

				<?php $this->complete_setup(); ?>

			<?php else : ?>

				<?php // render a welcome message if the current is the first step ?>
				<?php if ( $this->is_started() ) : ?>
					<?php $this->render_welcome(); ?>
				<?php endif; ?>

				<?php // render any error message from a previous save ?>
				<?php if ( ! empty( $error_message ) ) : ?>
					<?php $this->render_error( $error_message ); ?>
				<?php endif; ?>

				<form method="post">
					<?php $this->render_step( $this->current_step ); ?>
					<?php wp_nonce_field( "wc_{$this->id}_setup_wizard_save", 'nonce' ); ?>
				</form>

			<?php endif; ?>

		</div>
		<?php
	}


	/**
	 * Renders a save error.
	 *
	 * @since 5.2.2
	 *
	 * @param string $message error message to render
	 */
	protected function render_error( $message ) {

		if ( ! empty( $message ) ) {

			printf( '<p class="error">%s</p>', esc_html( $message ) );
		}
	}


	/**
	 * Renders a default welcome note.
	 *
	 * @since 5.2.2
	 */
	protected function render_welcome() {

		?>
		<h1><?php $this->render_welcome_heading()?></h1>
		<p class="welcome"><?php $this->render_welcome_text(); ?></p>
		<?php
	}


	/**
	 * Renders the default welcome note heading.
	 *
	 * @since 5.2.2
	 */
	protected function render_welcome_heading() {

		printf(
			/* translators: Placeholder: %s - plugin name */
			esc_html__( 'Welcome to %s!', 'woocommerce-plugin-framework' ),
			$this->get_plugin()->get_plugin_name()
		);
	}


	/**
	 * Renders the default welcome note text.
	 *
	 * @since 5.2.2
	 */
	protected function render_welcome_text() {

		esc_html_e( 'This quick setup wizard will help you configure the basic settings and get you started.', 'woocommerce-plugin-framework' );
	}


	/**
	 * Renders the finished screen markup.
	 *
	 * This is what gets displayed after all of the steps have been completed or skipped.
	 *
	 * @since 5.2.2
	 */
	protected function render_finished() {

		?>
		<h1><?php printf( esc_html__( '%s is ready!', 'woocommerce-plugin-framework' ), esc_html( $this->get_plugin()->get_plugin_name() ) ); ?></h1>
		<?php $this->render_before_next_steps(); ?>
		<?php $this->render_next_steps(); ?>
		<?php $this->render_after_next_steps(); ?>
		<?php
	}


	/**
	 * Renders HTML before the next steps in the finished step screen.
	 *
	 * Plugins can implement this method to output additional HTML before the next steps are printed.
	 *
	 * @since 5.2.2
	 */
	protected function render_before_next_steps() {
		// stub method
	}


	/**
	 * Renders HTML after the next steps in the finished step screen.
	 *
	 * Plugins can implement this method to output additional HTML after the next steps are printed.
	 *
	 * @since 5.2.2
	 */
	protected function render_after_next_steps() {
		// stub method
	}


	/**
	 * Renders the next steps.
	 *
	 * @since 5.2.2
	 */
	protected function render_next_steps() {

		$next_steps         = $this->get_next_steps();
		$additional_actions = $this->get_additional_actions();

		if ( ! empty( $next_steps ) || ! empty( $additional_actions ) ) :

			?>
			<ul class="wc-wizard-next-steps">

				<?php foreach ( $next_steps as $step ) : ?>

					<li class="wc-wizard-next-step-item">
						<div class="wc-wizard-next-step-description">

							<p class="next-step-heading"><?php esc_html_e( 'Next step', 'woocommerce-plugin-framework' ); ?></p>
							<h3 class="next-step-description"><?php echo esc_html( $step['label'] ); ?></h3>

							<?php if ( ! empty( $step['description'] ) ) : ?>
								<p class="next-step-extra-info"><?php echo esc_html( $step['description'] ); ?></p>
							<?php endif; ?>

						</div>

						<div class="wc-wizard-next-step-action">
							<p class="wc-setup-actions step">
								<?php $button_class = isset( $step['button_class'] ) ? $step['button_class'] : 'button button-primary button-large'; ?>
								<?php $button_class = is_string( $button_class ) || is_array( $button_class ) ? array_map( 'sanitize_html_class', explode( ' ', implode( ' ', (array) $button_class ) ) ) : ''; ?>
								<a class="<?php echo implode( ' ', $button_class ); ?>" href="<?php echo esc_url( $step['url'] ); ?>">
									<?php echo esc_html( $step['name'] ); ?>
								</a>
							</p>
						</div>
					</li>

				<?php endforeach; ?>

				<?php if ( ! empty( $additional_actions ) ) : ?>

					<li class="wc-wizard-additional-steps">
						<div class="wc-wizard-next-step-description">
							<p class="next-step-heading"><?php esc_html_e( 'You can also:', 'woocommerce-plugin-framework' ); ?></p>
						</div>
						<div class="wc-wizard-next-step-action">

							<p class="wc-setup-actions step">

								<?php foreach ( $additional_actions as $name => $url ) : ?>

									<a class="button button-large" href="<?php echo esc_url( $url ); ?>">
										<?php echo esc_html( $name ); ?>
									</a>

								<?php endforeach; ?>

							</p>
						</div>
					</li>

				<?php endif; ?>

			</ul>
			<?php

		endif;
	}


	/**
	 * Gets the next steps.
	 *
	 * These are major actions a user can take after finishing the setup wizard.
	 * For instance, things like "Create your first Add-On" could go here.
	 *
	 * @since 5.2.2
	 *
	 * @return array
	 */
	protected function get_next_steps() {

		$steps = array();

		if ( $this->get_plugin()->get_documentation_url() ) {

			$steps['view-docs'] = array(
				'name'        => __( 'View the Docs', 'woocommerce-plugin-framework' ),
				'label'       => __( 'See more setup options', 'woocommerce-plugin-framework' ),
				'description' => __( 'Learn more about customizing the plugin', 'woocommerce-plugin-framework' ),
				'url'         => $this->get_plugin()->get_documentation_url(),
			);
		}

		return $steps;
	}


	/**
	 * Gets the additional steps.
	 *
	 * These are secondary actions.
	 *
	 * @since 5.2.2
	 *
	 * @return array
	 */
	protected function get_additional_actions() {

		$next_steps = $this->get_next_steps();
		$actions    = array();

		if ( $this->get_plugin()->get_settings_url() ) {
			$actions[ __( 'Review Your Settings', 'woocommerce-plugin-framework' ) ] = $this->get_plugin()->get_settings_url();
		}

		if ( empty( $next_steps['view-docs'] ) && $this->get_plugin()->get_documentation_url() ) {
			$actions[ __( 'View the Docs', 'woocommerce-plugin-framework' ) ] = $this->get_plugin()->get_documentation_url();
		}

		if ( $this->get_plugin()->get_reviews_url() ) {
			$actions[ __( 'Leave a Review', 'woocommerce-plugin-framework' ) ] = $this->get_plugin()->get_reviews_url();
		}

		return $actions;
	}


	/**
	 * Renders a given step's markup.
	 *
	 * This will display a title, whatever get's rendered by the step's view
	 * callback, then the navigation buttons.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id step ID to render
	 */
	protected function render_step( $step_id ) {

		call_user_func( $this->steps[ $step_id ]['view'], $this );

		?>
		<p class="wc-setup-actions step">

			<?php $label = __( 'Continue', 'woocommerce-plugin-framework' ); ?>

			<?php if ( is_callable( $this->steps[ $step_id ]['save'] ) ) : ?>

				<button
					type="submit"
					name="save_step"
					class="button-primary button button-large button-next"
					value="<?php echo esc_attr( $label ); ?>">
					<?php echo esc_html( $label ); ?>
				</button>

			<?php else : ?>

				<a class="button-primary button button-large button-next" href="<?php echo esc_url( $this->get_next_step_url( $step_id ) ); ?>"><?php echo esc_html( $label ); ?></a>

			<?php endif; ?>
		</p>
		<?php
	}


	/**
	 * Renders a form field.
	 *
	 * Call this in the same way as woocommerce_form_field().
	 *
	 * @since 5.2.2
	 *
	 * @param string $key field key
	 * @param array $args field args - @see woocommerce_form_field()
	 * @param string|null $value field value
	 */
	protected function render_form_field( $key, $args, $value = null ) {

		if ( ! isset( $args['class'] ) ) {
			$args['class'] = array();
		} else {
			$args['class'] = (array) $args['class'];
		}

		// the base wrapper class for our styling
		$args['class'][] = 'sv-wc-plugin-admin-setup-control';

		// add the "required" HTML attribute for browser form validation
		if ( ! empty( $args['required'] ) ) {
			$args['custom_attributes']['required'] = true;
		}

		// all dropdowns are treated as enhanced selects
		if ( isset( $args['type'] ) && 'select' === $args['type'] ) {
			$args['input_class'][] = 'wc-enhanced-select';
		}

		// always echo the field
		$args['return'] = false;

		if ( isset( $args['type'] ) && 'toggle' === $args['type'] ) {
			$this->render_toggle_form_field( $key, $args, $value );
		} else {
			woocommerce_form_field( $key, $args, $value );
		}
	}


	/**
	 * Renders the toggle form field.
	 *
	 * This requires special markup for the toggle UI.
	 *
	 * @since 5.2.2
	 *
	 * @param string $key field key
	 * @param array $args field args - @see woocommerce_form_field()
	 * @param string|null $value field value
	 */
	public function render_toggle_form_field( $key, $args, $value ) {

		$args = wp_parse_args( $args, array(
			'type'              => 'text',
			'label'             => '',
			'description'       => '',
			'required'          => false,
			'id'                => $key,
			'class'             => array(),
			'label_class'       => array(),
			'input_class'       => array(),
			'custom_attributes' => array(),
			'default'           => false,
			'allow_html'        => false,
		) );

		$args['class'][] = 'toggle';

		if ( $args['required'] ) {
			$args['class'][] = 'validate-required';
		}

		if ( null === $value ) {
			$value = $args['default'];
		}

		$custom_attributes         = array();
		$args['custom_attributes'] = array_filter( (array) $args['custom_attributes'], 'strlen' );

		if ( $args['description'] ) {
			$args['custom_attributes']['aria-describedby'] = $args['id'] . '-description';
		}

		if ( ! empty( $args['custom_attributes'] ) && is_array( $args['custom_attributes'] ) ) {
			foreach ( $args['custom_attributes'] as $attribute => $attribute_value ) {
				$custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $attribute_value ) . '"';
			}
		}

		$enabled = $value || $args['default'];

		if ( $enabled ) {
			$args['class'][] = 'enabled';
		}

		?>
		<div class="form-row <?php echo esc_attr( implode( ' ', $args['class'] ) ); ?>">

			<p class="name"><?php echo true === $args['allow_html'] ? $args['label'] : esc_html( $args['label'] ); ?></p>

			<?php if ( true === $args['allow_html'] ) : ?>
				<div class="content"><p class="description"><?php echo $args['description']; ?></p></div>
			<?php else : ?>
				<p class="content description"><?php echo esc_html( $args['description'] ); ?></p>
			<?php endif; ?>

			<div class="enable">
				<span class="toggle <?php echo $enabled ? '' : 'disabled'; ?>">
					<input
						id="<?php echo esc_attr( $args['id'] ); ?>"
						type="checkbox"
						class="input-checkbox <?php echo esc_attr( implode( ' ', $args['input_class'] ) ); ?>"
						name="<?php echo esc_attr( $key ); ?>"
						value="yes" <?php checked( true, $value ); ?>
						<?php echo implode( ' ', $custom_attributes ); ?>
					/>
					<label for="<?php echo esc_attr( $args['id'] ); ?>" class="<?php implode(  ' ', (array) $args['label_class'] ); ?>">
				</span>
			</div>

		</div>
		<?php
	}


	/**
	 * Renders the setup footer.
	 *
	 * @since 5.2.2
	 */
	protected function render_footer() {

		?>
		<?php if ( $this->is_finished() ) : ?>
			<a class="wc-setup-footer-links" href="<?php echo esc_url( $this->get_dashboard_url() ); ?>"><?php esc_html_e( 'Return to the WordPress Dashboard', 'woocommerce-plugin-framework' ); ?></a>
		<?php elseif ( $this->is_started() ) : ?>
			<a class="wc-setup-footer-links" href="<?php echo esc_url( $this->get_dashboard_url() ); ?>"><?php esc_html_e( 'Not right now', 'woocommerce-plugin-framework' ); ?></a>
		<?php else : ?>
			<a class="wc-setup-footer-links" href="<?php echo esc_url( $this->get_next_step_url() ); ?>"><?php esc_html_e( 'Skip this step', 'woocommerce-plugin-framework' ); ?></a>
		<?php endif; ?>
		<?php

		do_action( 'wp_print_footer_scripts' );
	}


	/** Helper Methods ************************************************************************************************/


	/**
	 * Registers a step.
	 *
	 * @since 5.2.2
	 *
	 * @param string $id unique step ID
	 * @param string $name step name for display
	 * @param string|array $view_callback callback to render the step's content HTML
	 * @param string|array|null $save_callback callback to save the step's form values
	 * @return bool whether the step was successfully added
	 */
	public function register_step( $id, $name, $view_callback, $save_callback = null ) {

	    try {

			// invalid ID
			if ( ! is_string( $id ) || empty( $id ) || $this->has_step( $id ) ) {
				throw new Framework\SV_WC_Plugin_Exception( 'Invalid step ID' );
			}

			// invalid name
			if ( ! is_string( $name ) || empty( $name ) ) {
				throw new Framework\SV_WC_Plugin_Exception( 'Invalid step name' );
			}

			// invalid view callback
			if ( ! is_callable( $view_callback ) ) {
				throw new Framework\SV_WC_Plugin_Exception( 'Invalid view callback' );
			}

			// invalid save callback
			if ( null !== $save_callback && ! is_callable( $save_callback ) ) {
				throw new Framework\SV_WC_Plugin_Exception( 'Invalid save callback' );
			}

			$this->steps[ $id ] = array(
				'name' => $name,
				'view' => $view_callback,
				'save' => $save_callback,
			);

			return true;

		} catch ( Framework\SV_WC_Plugin_Exception $exception ) {

			Framework\SV_WC_Plugin_Compatibility::wc_doing_it_wrong( __METHOD__, $exception->getMessage(), '5.2.2' );

			return false;
		}
	}


	/**
	 * Marks the setup as complete.
	 *
	 * @since 5.2.2
	 *
	 * @return bool
	 */
	public function complete_setup() {

		return update_option( "wc_{$this->id}_setup_wizard_complete", 'yes' );
	}


	/** Conditional Methods *******************************************************************************************/


	/**
     * Determines if the current page is the setup wizard page.
     *
     * @since 5.2.2
     *
	 * @return bool
	 */
	public function is_setup_page() {

		return is_admin() && $this->get_slug() === Framework\SV_WC_Helper::get_request( 'page' );
	}


	/**
	 * Determines if a step is the current one displayed.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id step ID
	 * @return bool
	 */
	public function is_current_step( $step_id ) {

		return $this->current_step === $step_id;
	}


	/**
	 * Determines if setup has started.
	 *
	 * @since 5.2.2
	 *
	 * @return bool
	 */
	public function is_started() {

		$steps = array_keys( $this->steps );

		return $this->current_step && $this->current_step === reset( $steps );
	}


	/**
	 * Determines if setup has completed all of the steps.
	 *
	 * @since 5.2.2
	 *
	 * @return bool
	 */
	public function is_finished() {

		return self::ACTION_FINISH === Framework\SV_WC_Helper::get_request( 'action' );
	}


	/**
	 * Determines if the setup wizard has been completed.
	 *
	 * This will be true if any user has been redirected back to the regular
	 * WordPress dashboard, either manually or after finishing the steps.
	 *
	 * @since 5.2.2
	 *
	 * @return bool
	 */
	public function is_complete() {

		return 'yes' === get_option( "wc_{$this->id}_setup_wizard_complete", 'no' );
	}


	/**
	 * Determines if the given step has been completed.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id step ID to check
	 * @return bool
	 */
	public function is_step_complete( $step_id ) {

		return array_search( $this->current_step, array_keys( $this->steps ), true ) > array_search( $step_id, array_keys( $this->steps ), true ) || $this->is_finished();
	}


	/**
	 * Determines if the wizard has steps to display.
	 *
	 * @since 5.2.2
	 *
	 * @return bool
	 */
	public function has_steps() {

		return is_array( $this->steps ) && ! empty( $this->steps );
	}


	/**
	 * Determines if this setup handler has a given step.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id step ID to check
	 * @return bool
	 */
	public function has_step( $step_id ) {

		return ! empty( $this->steps[ $step_id ] );
	}


	/** Getter Methods ************************************************************************************************/


	/**
     * Gets a given step's title.
     *
     * @since 5.2.2
     *
	 * @param string $step_id step ID (optional: will assume the current step if unspecified)
	 * @return string
	 */
	public function get_step_title( $step_id = '' ) {

		$step_title = '';

		if ( ! $step_id ) {
			$step_id = $this->current_step;
		}

		if ( isset( $this->steps[ $step_id ]['name'] ) ) {
			$step_title = $this->steps[ $step_id ]['name'];
		}

		return $step_title;
	}


	/**
     * Gets the Setup Wizard URL.
     *
     * @since 5.2.2
     *
	 * @return string
	 */
	public function get_setup_url() {

		return add_query_arg( 'page', $this->get_slug(), admin_url( 'index.php' ) );
	}


	/**
	 * Gets the URL for the next step based on a current step.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id step ID to base "next" off of - defaults to this class's internal pointer
	 * @return string
	 */
	public function get_next_step_url( $step_id = '' ) {

		if ( ! $step_id ) {
			$step_id = $this->current_step;
		}

		$steps = array_keys( $this->steps );

		// if on the last step, next is the final finish step
		if ( end( $steps ) === $step_id ) {

			$url = $this->get_finish_url();

		} else {

			$step_index = array_search( $step_id, $steps, true );

			// if the current step is found, use the next in the array. otherwise, the first
			$step = false !== $step_index ? $steps[ $step_index + 1 ] : reset( $steps );

			$url = add_query_arg( 'step', $step );
		}

		return $url;
	}


	/**
	 * Gets a given step's URL.
	 *
	 * @since 5.2.2
	 *
	 * @param string $step_id step ID
	 * @return string|false
	 */
	public function get_step_url( $step_id ) {

		$url = false;

		if ( $this->has_step( $step_id ) ) {
			$url = add_query_arg( 'step', $step_id, remove_query_arg( 'action' ) );
		}

		return $url;
	}


	/**
	 * Gets the "finish" action URL.
	 *
	 * @since 5.2.2
	 *
	 * @return string
	 */
	protected function get_finish_url() {

		return add_query_arg( 'action', self::ACTION_FINISH, remove_query_arg( 'step' ) );
	}


	/**
	 * Gets the return URL.
	 *
	 * Can be used to return the user to the dashboard. The plugin's settings URL
	 * will be used if it exists, otherwise the general dashboard URL.
	 *
	 * @since 5.2.2
	 *
	 * @return string
	 */
	protected function get_dashboard_url() {

		$settings_url  = $this->get_plugin()->get_settings_url();
		$dashboard_url = ! empty( $settings_url ) ? $settings_url : admin_url();

		return add_query_arg( "wc_{$this->id}_setup_wizard_complete", true, $dashboard_url );
	}


	/**
	 * Gets the setup setup handler's slug.
	 *
	 * @since 5.2.2
	 *
	 * @return string
	 */
	protected function get_slug() {

		return 'wc-' . $this->get_plugin()->get_id_dasherized() . '-setup';
	}


	/**
	 * Gets the plugin instance.
	 *
	 * @since 5.2.2
	 *
	 * @return Framework\SV_WC_Plugin|Framework\SV_WC_Payment_Gateway_Plugin
	 */
	protected function get_plugin() {

		return $this->plugin;
	}


}

endif;
