class PUM_Cookies {

	/**
	 * @var PUM_Cookies
	 */
	public static $instance;

	/**
	 * @var bool
	 */
	public $preload_posts = false;

	/**
	 * @var array
	 */
	public $cookies;


	/**
	 *
	 */
	public static function init() {
		self::instance();
	}

	/**
	 * @return PUM_Cookies
	 */
	public static function instance() {
		if ( ! isset( self::$instance ) ) {
			self::$instance                = new self;
			self::$instance->preload_posts = pum_is_popup_editor();
		}

		return self::$instance;
	}

	/**
	 * @param null $cookie
	 *
	 * @return mixed|null
	 */
	public function get_cookie( $cookie = null ) {
		$cookies = $this->get_cookies();

		return isset( $cookies[ $cookie ] ) ? $cookies[ $cookie ] : null;
	}

	/**
	 * @return array
	 */
	public function get_cookies() {
		if ( ! isset( $this->cookies ) ) {
			$this->register_cookies();
		}

		return $this->cookies;
	}

	/**
	 * Registers all known cookies when called.
	 */
	public function register_cookies() {
		$cookies = apply_filters( 'pum_registered_cookies', array(
			'on_popup_close'                  => array(
				'name' => __( 'On Popup Close', 'popup-maker' ),
			),
			'on_popup_open'                   => array(
				'name' => __( 'On Popup Open', 'popup-maker' ),
			),
			'form_submission'                 => [
				'name'   => __( 'Form Submission', 'popup-maker' ),
				'fields' => array_merge_recursive( $this->cookie_fields(), [
					'general' => [
						'form'          => [
							'type'    => 'select',
							'label'   => __( 'Form', 'popup-maker' ),
							'options' => $this->preload_posts ? array_merge( [
								'any'                              => __( 'Any Supported Form*', 'popup-maker' ),
								__( 'Popup Maker', 'popup-maker' ) => [
									'pumsubform' => __( 'Subscription Form', 'popup-maker' ),
								],
							], PUM_Integrations::get_integrated_forms_selectlist() ) : array(),
							'pri'     => - 1,
							'std'     => 'any',
						],
						'only_in_popup' => [
							'type'  => 'checkbox',
							'label' => __( 'Only in this popup', 'popup-maker' ),
							'std'   => '1',
						],
					],
				] ),
			],
			'pum_sub_form_success'            => array(
				'name' => __( 'Subscription Form: Successful', 'popup-maker' ),
			),
			'pum_sub_form_already_subscribed' => array(
				'name' => __( 'Subscription Form: Already Subscribed', 'popup-maker' ),
			),
			'manual'                          => array(
				'name' => __( 'Manual', 'popup-maker' ),
				'settings_column' => '<pre class="manual-cookie-shortcode"><code>[popup_cookie name="{{data.name}}" expires="{{data.time}}" sitewide="{{data.path ? 1 : 0}}"]</code></pre>',
			),
		) );

		// @deprecated filter.
		$cookies = apply_filters( 'pum_get_cookies', $cookies );

		$this->add_cookies( $cookies );
	}

	/**
	 * @param array $cookies
	 */
	public function add_cookies( $cookies = array() ) {
		foreach ( $cookies as $key => $cookie ) {
			if ( empty( $cookie['id'] ) && ! is_numeric( $key ) ) {
				$cookie['id'] = $key;
			}

			$this->add_cookie( $cookie );
		}
	}

	/**
	 * @param null $cookie
	 */
	public function add_cookie( $cookie = null ) {
		if ( ! empty( $cookie['id'] ) && ! isset ( $this->cookies[ $cookie['id'] ] ) ) {
			$cookie = wp_parse_args( $cookie, array(
				'id'              => '',
				'name'            => '',
				'modal_title'     => __( 'Cookie Settings', 'popup-maker' ),
				'settings_column' => sprintf( '%s%s%s', '<# if (typeof data.session === "undefined" || data.session !== "1") { print(data.time); } else { print("', __( 'Sessions', 'popup-maker' ), '"); } #>' ),
				'priority'        => 10,
				'tabs'            => $this->get_tabs(),
				'fields'          => $this->cookie_fields(),
			) );

			// Here for backward compatibility to merge in labels properly.
			if ( ! empty( $cookie['labels'] ) ) {
				foreach ( $cookie['labels'] as $key => $value ) {
					$cookie[ $key ] = $value;
					unset( $cookie['labels'][ $key ] );
				}
				unset( $cookie['labels'] );
			}

			// Add cookie fields for all cookies automatically.
			if ( empty( $cookie['fields'] ) ) {
				$cookie['fields'] = $this->cookie_fields();
			}

			$cookie['fields'] = PUM_Admin_Helpers::parse_tab_fields( $cookie['fields'], array(
				'has_subtabs' => false,
				'name'        => '%s',
			) );

			$this->cookies[ $cookie['id'] ] = $cookie;
		}

		return;

	}

	/**
	 * Returns an array of section labels for all triggers.
	 *
	 * Use the filter pum_get_trigger_section_labels to add or modify labels.
	 *
	 * @return array
	 */
	public function get_tabs() {
		/**
		 * Filter the array of trigger section labels.
		 *
		 * @param array $to_do The list of trigger section labels.
		 */
		return apply_filters( 'pum_get_trigger_tabs', array(
			'general'  => __( 'General', 'popup-maker' ),
			'advanced' => __( 'Advanced', 'popup-maker' ),
		) );
	}

	/**
	 * Returns the cookie fields used for cookie options.
	 *
	 * @return array
	 *
	 * @uses filter pum_get_cookie_fields
	 *
	 */
	public function cookie_fields() {
		return apply_filters( 'pum_get_cookie_fields', array(
			'general'  => array(
				'name' => array(
					'label'       => __( 'Cookie Name', 'popup-maker' ),
					'placeholder' => __( 'Cookie Name ex. popmaker-123', 'popup-maker' ),
					'desc'        => __( 'The name that will be used when checking for or saving this cookie.', 'popup-maker' ),
					'std'         => '',
					'priority'    => 1,
				),
				'time' => array(
					'label'       => __( 'Cookie Time', 'popup-maker' ),
					'placeholder' => __( '364 days 23 hours 59 minutes 59 seconds', 'popup-maker' ),
					'desc'        => __( 'Enter a plain english time before cookie expires.', 'popup-maker' ),
					'std'         => '1 month',
					'priority'    => 2,
				),
			),
			'advanced' => array(
				'session' => array(
					'label'    => __( 'Use Session Cookie?', 'popup-maker' ),
					'desc'     => __( 'Session cookies expire when the user closes their browser.', 'popup-maker' ) . ' ' . sprintf( __( '%sNote%s: Modern browsers that reopen your last browser session\'s tabs do not properly clear session cookies', 'popup-maker' ), '<strong>', '</strong>' ),
					'type'     => 'checkbox',
					'std'      => false,
					'priority' => 1,
				),
				'path'    => array(
					'label'    => __( 'Sitewide Cookie', 'popup-maker' ),
					'desc'     => __( 'This will prevent the popup from triggering on all pages until the cookie expires.', 'popup-maker' ),
					'type'     => 'checkbox',
					'std'      => true,
					'priority' => 2,
				),
				'key'     => array(
					'label'    => __( 'Cookie Key', 'popup-maker' ),
					'desc'     => __( 'Changing this will cause all existing cookies to be invalid.', 'popup-maker' ),
					'type'     => 'cookie_key',
					'std'      => '',
					'priority' => 3,
				),
			),
		) );
	}

	/**
	 * @return array
	 */
	public function get_labels() {
		static $labels;

		if ( ! isset( $labels ) ) {
			/**
			 * Filter the array of cookie labels.
			 *
			 * @param array $to_do The list of cookie labels.
			 */
			$labels = apply_filters( 'pum_get_cookie_labels', array() );
		}

		return $labels;
	}

	/**
	 * @param null  $cookie
	 * @param array $settings
	 *
	 * @return array
	 * @deprecated
	 *
	 */
	public function validate_cookie( $cookie = null, $settings = array() ) {
		return $settings;
	}


	/**
	 * @return array
	 */
	public function dropdown_list() {
		$_cookies = $this->get_cookies();
		$cookies  = array();

		foreach ( $_cookies as $id => $cookie ) {
			$cookies[ $id ] = $cookie['name'];
		}

		return $cookies;
	}
}