<?php
	/**
	 * @package     Freemius
	 * @copyright   Copyright (c) 2015, Freemius, Inc.
	 * @license     https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3
	 * @since       2.1.0
	 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class FS_GDPR_Manager {
	/**
	 * @var FS_Option_Manager
	 */
	private $_storage;
	/**
	 * @var array {
	 * @type bool $required           Are GDPR rules apply on the current context admin.
	 * @type bool $show_opt_in_notice Should the marketing and offers opt-in message be shown to the admin or not. If not set, defaults to `true`.
	 * @type int  $notice_shown_at    Last time the special GDPR opt-in message was shown to the current admin.
	 * }
	 */
	private $_data;
	/**
	 * @var int
	 */
	private $_wp_user_id;
	/**
	 * @var string
	 */
	private $_option_name;
	/**
	 * @var FS_Admin_Notices
	 */
	private $_notices;

	// --------------------------------------------------------------------------------
	// region Singleton
	// --------------------------------------------------------------------------------

	/**
	 * @var FS_GDPR_Manager
	 */
	private static $_instance;

	/**
	 * @return FS_GDPR_Manager
	 */
	public static function instance() {
		if ( ! isset( self::$_instance ) ) {
			self::$_instance = new self();
		}

		return self::$_instance;
	}

	// endregion

	private function __construct() {
		$this->_storage     = FS_Option_Manager::get_manager( WP_FS__GDPR_OPTION_NAME, true, true );
		$this->_wp_user_id  = Freemius::get_current_wp_user_id();
		$this->_option_name = "u{$this->_wp_user_id}";
		$this->_data        = $this->_storage->get_option( $this->_option_name, array() );
		$this->_notices     = FS_Admin_Notices::instance( 'all_admins', '', '', true );

		if ( ! is_array( $this->_data ) ) {
			$this->_data = array();
		}
	}

	/**
	 * Update a GDPR option for the current admin and store it.
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 *
	 * @param string $name
	 * @param mixed  $value
	 */
	private function update_option( $name, $value ) {
		$this->_data[ $name ] = $value;

		$this->_storage->set_option( $this->_option_name, $this->_data, true );
	}

	/**
	 * @author Leo Fajardo (@leorw)
	 * @since  2.1.0
	 *
	 * @param bool $is_required
	 */
	public function store_is_required( $is_required ) {
		$this->update_option( 'required', $is_required );
	}

	/**
	 * Checks if the GDPR opt-in sticky notice is currently shown.
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 *
	 * @return bool
	 */
	public function is_opt_in_notice_shown() {
		return $this->_notices->has_sticky( "gdpr_optin_actions_{$this->_wp_user_id}", true );
	}

	/**
	 * Remove the GDPR opt-in sticky notice.
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 */
	public function remove_opt_in_notice() {
		$this->_notices->remove_sticky( "gdpr_optin_actions_{$this->_wp_user_id}", true );

		$this->disable_opt_in_notice();
	}

	/**
	 * Prevents the opt-in message from being added/shown.
	 *
	 * @author Leo Fajardo (@leorw)
	 * @since  2.1.0
	 */
	public function disable_opt_in_notice() {
		$this->update_option( 'show_opt_in_notice', false );
	}

	/**
	 * Checks if a GDPR opt-in message needs to be shown to the current admin.
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 *
	 * @return bool
	 */
	public function should_show_opt_in_notice() {
		return (
			! isset( $this->_data['show_opt_in_notice'] ) ||
			true === $this->_data['show_opt_in_notice']
		);
	}

	/**
	 * Get the last time the GDPR opt-in notice was shown.
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 *
	 * @return false|int
	 */
	public function last_time_notice_was_shown() {
		return isset( $this->_data['notice_shown_at'] ) ?
			$this->_data['notice_shown_at'] :
			false;
	}

	/**
	 * Update the timestamp of the last time the GDPR opt-in message was shown to now.
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 */
	public function notice_was_just_shown() {
		$this->update_option( 'notice_shown_at', WP_FS__SCRIPT_START_TIME );
	}

	/**
	 * @param string      $message
	 * @param string|null $plugin_title
	 *
	 * @author Vova Feldman (@svovaf)
	 * @since  2.1.0
	 */
	public function add_opt_in_sticky_notice( $message, $plugin_title = null ) {
		$this->_notices->add_sticky(
			$message,
			"gdpr_optin_actions_{$this->_wp_user_id}",
			'',
			'promotion',
			true,
			$this->_wp_user_id,
			$plugin_title,
			true
		);
	}
}
