<?php
/**
 * WPSEO plugin file.
 *
 * @package WPSEO\Admin\Menu
 */

/**
 * Renders a single replacement variable field.
 */
class WPSEO_Replacevar_Field {

	/**
	 * Forms instance.
	 *
	 * @var Yoast_Form Yoast
	 */
	private $yform;

	/**
	 * The id for the hidden field.
	 *
	 * @var string
	 */
	private $field_id;

	/**
	 * The label for the field.
	 *
	 * @var string
	 */
	private $label;

	/**
	 * The page type for the context of the recommended replace vars.
	 *
	 * @var string
	 */
	private $page_type_recommended;

	/**
	 * The page type for the context of the editor specific replace vars.
	 *
	 * @var string
	 */
	private $page_type_specific;

	/**
	 * Constructs the object.
	 *
	 * @param Yoast_Form $yform                 Yoast forms.
	 * @param string     $field_id              The field id.
	 * @param string     $label                 The field label.
	 * @param string     $page_type_recommended The page type for the context of the recommended replace vars.
	 * @param string     $page_type_specific    The page type for the context of the editor specific replace vars.
	 */
	public function __construct( Yoast_Form $yform, $field_id, $label, $page_type_recommended, $page_type_specific ) {
		$this->yform                 = $yform;
		$this->field_id              = $field_id;
		$this->label                 = $label;
		$this->page_type_recommended = $page_type_recommended;
		$this->page_type_specific    = $page_type_specific;
	}

	/**
	 * Renders a div for the react application to mount to, and hidden inputs where
	 * the app should store it's value so they will be properly saved when the form
	 * is submitted.
	 *
	 * @return void
	 */
	public function render() {
		$this->yform->hidden( $this->field_id, $this->field_id );

		printf(
			'<div
				data-react-replacevar-field
				data-react-replacevar-field-id="%1$s"
				data-react-replacevar-field-label="%2$s"
				data-react-replacevar-page-type-recommended="%3$s"
				data-react-replacevar-page-type-specific="%4$s"></div>',
			esc_attr( $this->field_id ),
			esc_attr( $this->label ),
			esc_attr( $this->page_type_recommended ),
			esc_attr( $this->page_type_specific )
		);
	}
}