e-conditional-logic-with-wpforms/',
				'/docs/how-to-customize-the-style-of-individual-form-fields/',
			],
			'total'                     => [
				'/docs/viewing-and-managing-payments/',
				'/docs/how-to-require-payment-total-with-a-wordpress-form/',
				'/docs/how-to-install-and-use-the-stripe-addon-with-wpforms/',
				'/docs/paypal-commerce-addon/',
				'/docs/install-use-paypal-addon-wpforms/',
				'/docs/how-to-install-and-use-the-authorize-net-addon-with-wpforms/',
				'/docs/how-to-create-a-donation-form-with-multiple-amounts/',
				'/docs/how-to-allow-users-to-choose-a-payment-method-on-your-form/',
				'/docs/how-to-customize-form-field-options/',
				'/docs/how-to-use-conditional-logic-with-wpforms/',
				'/docs/how-to-customize-the-style-of-individual-form-fields/',
			],
			'paypal checkout'           => [
				'/docs/paypal-commerce-addon/',
				'/docs/testing-payments-with-the-paypal-commerce-addon/',
				'/docs/how-to-customize-form-field-options/',
				'/docs/how-to-use-conditional-logic-with-wpforms/',
				'/docs/viewing-and-managing-payments/',
			],
			'stripe credit card'        => [
				'/docs/how-to-install-and-use-the-stripe-addon-with-wpforms/',
				'/docs/how-to-test-stripe-payments-on-your-site/',
				'/docs/how-to-customize-form-field-options/',
				'/docs/how-to-use-conditional-logic-with-wpforms/',
				'/docs/viewing-and-managing-payments/',
			],
			'authorize.net credit card' => [
				'/docs/how-to-install-and-use-the-authorize-net-addon-with-wpforms/',
				'/docs/how-to-customize-form-field-options/',
				'/docs/how-to-use-conditional-logic-with-wpforms/',
				'/docs/viewing-and-managing-payments/',
			],
			'square credit card'        => [
				'/docs/how-to-install-and-use-the-square-addon-with-wpforms/',
				'/docs/how-to-test-square-payments-on-your-site/',
				'/docs/how-to-customize-form-field-options/',
				'/docs/how-to-use-conditional-logic-with-wpforms/',
				'/docs/viewing-and-managing-payments/',
			],
			'settings'                  => [
				'/docs/creating-first-form/',
				'/docs/setup-form-notification-wpforms/',
				'/docs/setup-form-confirmation-wpforms/',
			],
			'submit'                    => [
				'/docs/how-to-customize-the-submit-button/',
			],
			'button'                    => [
				'/docs/how-to-customize-the-submit-button/',
			],
			'dynamic population'        => [
				'/developers/how-to-enable-dynamic-field-population/',
			],
			'offline'                   => [
				'/docs/how-to-enable-ajax-form-submissions/',
			],
			'offline forms'             => [
				'/docs/how-to-enable-ajax-form-submissions/',
			],
			'notification'              => [
				'/docs/setup-form-notification-wpforms/',
				'/docs/customizing-form-notification-emails/',
				'/docs/how-to-create-conditional-form-notifications-in-wpforms/',
				'/docs/troubleshooting-email-notifications/',
				'/docs/how-to-fix-wordpress-contact-form-not-sending-email-with-smtp/',
			],
			'notifications'             => [
				'/docs/setup-form-notification-wpforms/',
				'/docs/customizing-form-notification-emails/',
				'/docs/how-to-create-conditional-form-notifications-in-wpforms/',
				'/docs/troubleshooting-email-notifications/',
				'/docs/how-to-fix-wordpress-contact-form-not-sending-email-with-smtp/',
			],
			'notification email'        => [
				'/docs/setup-form-notification-wpforms/',
				'/docs/customizing-form-notification-emails/',
				'/docs/how-to-create-conditional-form-notifications-in-wpforms/',
				'/docs/troubleshooting-email-notifications/',
				'/docs/how-to-fix-wordpress-contact-form-not-sending-email-with-smtp/',
			],
			'notification emails'       => [
				'/docs/setup-form-notification-wpforms/',
				'/docs/customizing-form-notification-emails/',
				'/docs/how-to-create-conditional-form-notifications-in-wpforms/',
				'/docs/troubleshooting-email-notifications/',
				'/docs/how-to-fix-wordpress-contact-form-not-sending-email-with-smtp/',
			],
			'confirmation'              => [
				'/docs/setup-form-confirmation-wpforms/',
				'/docs/how-to-create-conditional-form-confirmations/',
			],
			'confirmation message'      => [
				'/docs/setup-form-confirmation-wpforms/',
				'/docs/how-to-create-conditional-form-confirmations/',
			],
			'redirect'                  => [
				'/docs/setup-form-confirmation-wpforms/',
				'/docs/how-to-create-conditional-form-confirmations/',
			],
			'go to url (redirect)'      => [
				'/docs/setup-form-confirmation-wpforms/',
				'/docs/how-to-create-conditional-form-confirmations/',
			],
			'confirmation page'         => [
				'/docs/setup-form-confirmation-wpforms/',
				'/docs/how-to-create-conditional-form-confirmations/',
			],
			'conditional confirmation'  => [
				'/docs/setup-form-confirmation-wpforms/',
				'/docs/how-to-create-conditional-form-confirmations/',
			],
			'calculation'               => [
				'/docs/calculations-addon/',
				'/docs/building-formulas-with-the-calculations-addon/',
				'/calculations-formula-cheatsheet/',
			],
			'calculations'              => [
				'/docs/calculations-addon/',
				'/docs/building-formulas-with-the-calculations-addon/',
				'/calculations-formula-cheatsheet/',
			],
			'formula'                   => [
				'/docs/calculations-addon/',
				'/docs/building-formulas-with-the-calculations-addon/',
				'/calculations-formula-cheatsheet/',
			],
			'conditional calculation'   => [
				'/docs/calculations-addon/',
				'/docs/building-formulas-with-the-calculations-addon/',
				'/calculations-formula-cheatsheet/',
			],
			'lead forms'                => [
				'/docs/lead-forms-addon/',
			],
			'form abandonment'          => [
				'/docs/how-to-install-and-use-form-abandonment-with-wpforms/',
			],
			'abandonment'               => [
				'/docs/how-to-install-and-use-form-abandonment-with-wpforms/',
			],
			'abandon'                   => [
				'/docs/how-to-install-and-use-form-abandonment-with-wpforms/',
			],
			'lead capture'              => [
				'/docs/how-to-install-and-use-form-abandonment-with-wpforms/',
			],
			'post submissions'          => [
				'/docs/how-to-install-and-use-the-post-submissions-addon-in-wpforms/',
			],
			'guest post'                => [
				'/docs/how-to-install-and-use-the-post-submissions-addon-in-wpforms/',
			],
			'user submission'           => [
				'/docs/how-to-install-and-use-the-post-submissions-addon-in-wpforms/',
			],
			'blog'                      => [
				'/docs/how-to-install-and-use-the-post-submissions-addon-in-wpforms/',
			],
			'post'                      => [
				'/docs/how-to-install-and-use-the-post-submissions-addon-in-wpforms/',
			],
			'user registration'         => [
				'/docs/how-to-install-and-use-user-registration-addon-with-wpforms/',
				'/docs/how-to-set-up-custom-user-meta-fields/',
			],
			'register'                  => [
				'/docs/how-to-install-and-use-user-registration-addon-with-wpforms/',
				'/docs/how-to-set-up-custom-user-meta-fields/',
			],
			'registration'              => [
				'/docs/how-to-install-and-use-user-registration-addon-with-wpforms/',
				'/docs/how-to-set-up-custom-user-meta-fields/',
			],
			'user meta'                 => [
				'/docs/how-to-install-and-use-user-registration-addon-with-wpforms/',
				'/docs/how-to-set-up-custom-user-meta-fields/',
			],
			'user'                      => [
				'/docs/how-to-install-and-use-user-registration-addon-with-wpforms/',
				'/docs/how-to-set-up-custom-user-meta-fields/',
			],
			'surveys'                   => [
				'/docs/how-to-install-and-use-the-surveys-and-polls-addon/',
			],
			'polls'                     => [
				'/docs/how-to-install-and-use-the-surveys-and-polls-addon/',
			],
			'surveys and polls'         => [
				'/docs/how-to-install-and-use-the-surveys-and-polls-addon/',
			],
			'conversational forms'      => [
				'/docs/how-to-install-and-use-the-conversational-forms-addon/',
			],
			'conversational'            => [
				'/docs/how-to-install-and-use-the-conversational-forms-addon/',
			],
			'form locker'               => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'password protection'       => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'entry limit'               => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'scheduling'                => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'restrict access'           => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'limit'                     => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'schedule'                  => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'restrict'                  => [
				'/docs/how-to-install-and-use-the-form-locker-addon-in-wpforms/',
				'/developers/how-to-display-remaining-entry-limit-number/',
			],
			'form pages'                => [
				'/docs/how-to-install-and-use-the-form-pages-addon/',
			],
			'save'                      => [
				'/docs/how-to-install-and-use-the-save-and-resume-addon-with-wpforms/',
			],
			'resume'                    => [
				'/docs/how-to-install-and-use-the-save-and-resume-addon-with-wpforms/',
			],
			'continue'                  => [
				'/docs/how-to-install-and-use-the-save-and-resume-addon-with-wpforms/',
			],
			'save and resume'           => [
				'/docs/how-to-install-and-use-the-save-and-resume-addon-with-wpforms/',
			],
			'save and continue'         => [
				'/docs/how-to-install-and-use-the-save-and-resume-addon-with-wpforms/',
			],
			'webhooks'                  => [
				'/docs/how-to-install-and-use-the-webhooks-addon-with-wpforms/',
			],
			'aweber'                    => [
				'/docs/install-use-aweber-addon-wpforms/',
			],
			'campaign monitor'          => [
				'/docs/how-to-install-and-use-campaign-monitor-addon-with-wpforms/',
			],
			'constant contact'          => [
				'/docs/how-to-connect-constant-contact-with-wpforms/',
			],
			'convertkit'                => [
				'/docs/convertkit-addon/',
			],
			'drip'                      => [
				'/docs/how-to-install-and-use-the-drip-addon-in-wpforms/',
			],
			'getresponse'               => [
				'/docs/how-to-install-and-use-getresponse-addon-with-wpforms/',
			],
			'google sheets'             => [
				'/docs/google-sheets-addon/',
				'/docs/google-permissions/',
			],
			'mailchimp'                 => [
				'/docs/install-use-mailchimp-addon-wpforms/',
			],
			'mailerlite'                => [
				'/docs/install-use-mailerlite-addon-wpforms/',
			],
			'zapier'                    => [
				'/docs/how-to-install-and-use-zapier-addon-with-wpforms/',
			],
			'salesforce'                => [
				'/docs/how-to-install-and-use-the-salesforce-addon-with-wpforms/',
			],
			'sendinblue'                => [
				'/docs/how-to-install-and-use-the-sendinblue-addon-with-wpforms/',
			],
			'hubspot'                   => [
				'/docs/how-to-install-and-use-the-hubspot-addon-in-wpforms/',
			],
			'integrate'                 => [
				'/docs/how-to-install-and-use-zapier-addon-with-wpforms/',
				'/docs/how-to-install-and-use-the-webhooks-addon-with-wpforms/',
				'/docs/google-sheets-addon/',
			],
			'integration'               => [
				'/docs/how-to-install-and-use-zapier-addon-with-wpforms/',
				'/docs/how-to-install-and-use-the-webhooks-addon-with-wpforms/',
				'/docs/google-sheets-addon/',
			],
			'crm'                       => [
				'/docs/how-to-install-and-use-zapier-addon-with-wpforms/',
				'/docs/how-to-install-and-use-the-webhooks-addon-with-wpforms/',
			],
			'api'                       => [
				'/docs/how-to-install-and-use-zapier-addon-with-wpforms/',
				'/docs/how-to-install-and-use-the-webhooks-addon-with-wpforms/',
				'/docs/google-sheets-addon/',
			],
			'paypal commerce'           => [
				'/docs/paypal-commerce-addon/',
				'/docs/testing-payments-with-the-paypal-commerce-addon/',
			],
			'paypal standard'           => [
				'/docs/install-use-paypal-addon-wpforms/',
				'/docs/how-to-test-paypal-payments-before-accepting-real-payments/',
				'/docs/how-to-allow-users-to-choose-a-payment-method-on-your-form/',
			],
			'stripe'                    => [
				'/docs/using-stripe-with-wpforms-lite/',
				'/docs/how-to-install-and-use-the-stripe-addon-with-wpforms/',
				'/docs/how-to-test-stripe-payments-on-your-site/',
			],
			'authorize'                 => [
				'/docs/how-to-install-and-use-the-authorize-net-addon-with-wpforms/',
			],
			'authorize.net'             => [
				'/docs/how-to-install-and-use-the-authorize-net-addon-with-wpforms/',
			],
			'square'                    => [
				'/docs/how-to-install-and-use-the-square-addon-with-wpforms/',
				'/docs/how-to-test-square-payments-on-your-site/',
			],
			'revisions'                 => [
				'/docs/how-to-use-form-revisions-in-wpforms/',
			],
		];
	}

	/**
	 * Get context (recommended) docs.
	 *
	 * @since 1.6.3
	 *
	 * @return array Docs recommended by search terms.
	 */
	public function get_context_docs() {

		if ( empty( $this->docs ) ) {
			return [];
		}

		$docs_links = $this->get_context_docs_links();
		$docs       = [];

		foreach ( $docs_links as $word => $links ) {
			$docs[ $word ] = $this->get_doc_ids( $links );
		}

		return $docs;
	}

	/**
	 * Get doc id.
	 *
	 * @since 1.6.3
	 * @deprecated 1.8.3
	 *
	 * @param string $link Absolute link to the doc without the domain part.
	 *
	 * @return array Array with doc id as element.
	 */
	public function get_doc_id( $link ) {

		_deprecated_function( __METHOD__, '1.8.3 of the WPForms plugin', __CLASS__ . '::get_doc_id_int()' );

		if ( empty( $this->docs ) ) {
			return [];
		}

		$result = array_filter(
			$this->docs,
			static function( $doc ) use ( $link ) {

				return ! empty( $doc['url'] ) && $doc['url'] === 'https://wpforms.com' . $link;
			}
		);

		return array_keys( $result );
	}

	/**
	 * Get doc id.
	 *
	 * @since 1.8.3
	 *
	 * @param string $link Absolute link to the doc without the domain part.
	 *
	 * @return int Doc id.
	 */
	private function get_doc_id_int( $link ) {

		if ( empty( $this->docs ) ) {
			return 0;
		}

		foreach ( $this->docs as $id => $doc ) {
			if ( ! empty( $doc['url'] ) && $doc['url'] === 'https://wpforms.com' . $link ) {
				return $id;
			}
		}

		return 0;
	}

	/**
	 * Get doc ids.
	 *
	 * @since 1.6.3
	 *
	 * @param array $links Array of the doc links.
	 *
	 * @return array Doc ids.
	 */
	public function get_doc_ids( $links ) {

		$ids = [];

		foreach ( $links as $link ) {
			$ids[] = $this->get_doc_id_int( $link );
		}

		return $ids;
	}

	/**
	 * Output help modal markup.
	 *
	 * @since 1.6.3
	 */
	public function output() {

		// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
		echo wpforms_render(
			'builder/help',
			[
				'settings' => [
					'docs_url'           => 'https://wpforms.com/docs/',
					'support_ticket_url' => 'https://wpforms.com/account/support/',
					'upgrade_url'        => 'https://wpforms.com/pricing/',
				],
			],
			true
		);
	}
}