<?php
namespace ILJ\Core\Options;

use ILJ\Helper\Help;
use ILJ\Enumeration\IndexMode;
use ILJ\Helper\Options as OptionsHelper;

/**
 * Option: Index generation mode
 *
 * @package ILJ\Core\Options
 * @since   1.1.3
 */
class IndexGeneration extends AbstractOption {
	
	/**
	 * Get the unique identifier for the option
	 *
	 * @return string
	 */
	public static function getKey() {
		return self::ILJ_OPTIONS_PREFIX . 'index_generation';
	}
	
	/**
	 * Get the default value of the option
	 *
	 * @return mixed
	 */
	public static function getDefault() {
		return IndexMode::AUTOMATIC;
	}
	
	/**
	 * Identifies if the current option is pro only
	 *
	 * @return bool
	 */
	public static function isPro() {
		return true;
	}
	
	/**
	 * Get the frontend label for the option
	 *
	 * @return string
	 */
	public function getTitle() {
		return __('Index generation mode', 'internal-links');
	}
	
	/**
	 * Get the frontend description for the option
	 *
	 * @return string
	 */
	public function getDescription() {
		return __('Choose your preferred approach for generating the index.', 'internal-links');
	}
	
	/**
	 * Returns a hint text for the option, if given
	 *
	 * @return string
	 */
	public function getHint() {
		 return '<ul class="description">'
		. '<li><p class="description"><code>' . __('None', 'internal-links') . '</code>: ' . __('The index is not created by the plugin (you should set up a cronjob). Read more in our', 'internal-links') . ' <a href="' . Help::getLinkUrl('index-generation-mode/', 'mode-none', 'index generation mode', 'settings') . '" target="_blank" rel="noopener">' . __('manual', 'internal-links') . '</a>.</p></li>'
		. '<li><p class="description"><code>' . __('Automatic', 'internal-links') . '</code>: ' . __('Any change affecting the index automatically updates the index.', 'internal-links') . '</p></li>'
			. '</ul>';
	}

	/**
	 * Outputs the options form element for backend administration
	 *
	 * @param  mixed $value
	 * @return mixed
	 */
	public function renderField($value) {
		{
      $value = self::getDefault();
  }

		if (IndexMode::NONE != $value && IndexMode::AUTOMATIC != $value) {
			$value = self::getDefault();
		}
		$key = self::getKey();
		?>
		<select name="<?php echo esc_attr($key); ?>" id="<?php echo esc_attr($key); ?>" <?php OptionsHelper::render_disabler($this); ?>>
			<option value="<?php echo esc_attr(IndexMode::NONE); ?>" <?php selected($value, IndexMode::NONE); ?>><?php esc_html_e('None', 'internal-links'); ?></option>
			<option value="<?php echo esc_attr(IndexMode::AUTOMATIC); ?>" <?php selected($value, IndexMode::AUTOMATIC); ?>><?php esc_html_e('Automatic', 'internal-links'); ?></option>
		</select>
		<?php Help::render_options_link('index-generation-mode/', '', 'index generation mode');
	}

	/**
	 * 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;
	}
}