<?php
namespace ILJ\Core\Options;

use ILJ\Helper\Options as OptionsHelper;

/**
 * Option: Link template for custom links
 *
 * @package ILJ\Core\Options
 * @since   1.1.3
 */
class LinkOutputCustom extends AbstractOption {

	/**
	 * Adds the option to an option group
	 *
	 * @param  string $option_group The option group to which the option gets connected
	 * @return void
	 */
	public function register($option_group) {
		
	}
	
	/**
	 * Get the unique identifier for the option
	 *
	 * @return string
	 */
	public static function getKey() {
		return self::ILJ_OPTIONS_PREFIX . 'link_output_custom';
	}
	
	/**
	 * Identifies if the current option is pro only
	 *
	 * @return bool
	 */
	public static function isPro() {
		return true;
	}
	
	/**
	 * Get the default value of the option
	 *
	 * @return mixed
	 */
	public static function getDefault() {
		return esc_html('<a href="{{url}}">{{anchor}}</a>');
	}
	
	/**
	 * Get the frontend label for the option
	 *
	 * @return string
	 */
	public function getTitle() {
		return __('Template for the link output (custom links)', 'internal-links');
	}
	
	/**
	 * Get the frontend description for the option
	 *
	 * @return string
	 */
	public function getDescription() {
		return __('You can use the placeholders <code>{{url}}</code> for the target, <code>{{excerpt}}</code> for the excerpt and <code>{{anchor}}</code> for the generated anchor text and <code>{{title}}</code> for outputting link title.', 'internal-links');
	}

	/**
	 * Outputs the options form element for backend administration
	 *
	 * @param  mixed $value
	 * @return mixed
	 */
	public function renderField($value) {
		{
      $value = esc_html(self::getDefault());
  }
		$key = self::getKey();
		?>
		<input type="text"
			   name="<?php echo esc_attr($key); ?>"
			   id="<?php echo esc_attr($key); ?>"
			   value="<?php echo esc_attr($value); ?>"
			<?php OptionsHelper::render_disabler($this); ?> />
		<?php
	}

	/**
	 * Checks if a value is a valid value for option
	 *
	 * @param  mixed $value The value that gets validated
	 * @return bool
	 */
	public function isValidValue($value) {
		

		return false;
	}
}