<?php if ( ! defined( 'ABSPATH' ) ) {
	die( 'Direct access forbidden.' );
}

/**
 * Hover Options helper methods
 *
 * Class ET_Builder_Module_Hover_Options
 */
class ET_Builder_Module_Hover_Options {

	private static $instance;

	public static function get() {
		if ( empty( self::$instance ) ) {
			return self::$instance = new ET_Builder_Module_Hover_Options();
		}

		return self::$instance;
	}

	private function util_get( $key, $list, $default = null ) {
		return ET_Core_Data_Utils::instance()->array_get( $list, $key, $default );
	}

	/**
	 * Returns `__hover`
	 *
	 * @return string
	 */
	public function get_suffix() {
		return '__hover';
	}

	/**
	 * Return `__hover_enabled`
	 *
	 * @return string
	 */
	public function get_enabled_suffix() {
		return '__hover_enabled';
	}

	/**
	 * Returns the field original name by removing the `__hover` or `__hover_enabled` suffix if it exists.
	 *
	 * @param string $name
	 *
	 * @return string
	 */
	public function get_field_base_name( $name ) {
		// Do not use rtim as it removes by character not by string
		// So cases like `key__hoveree` will be reduced to `key`
		$regex   = "/(.*)({$this->get_suffix()}|{$this->get_enabled_suffix()})$/";
		$replace = '${1}';

		return preg_replace( $regex, $replace, $name );
	}

	/**
	 * Check if the setting has enabled hover options
	 *
	 * @param string $setting
	 * @param array $attrs
	 *
	 * @return bool
	 */
	public function is_enabled( $setting, $attrs ) {
		$name = $setting === 'background_color' ? 'background' : $setting;

		return strpos( $this->util_get( $this->get_hover_enabled_field( $name ), $attrs ), 'on' ) === 0;
	}

	/**
	 * Returns the hover setting field name
	 * E.g.: get_hover_enabled_field('test') => 'test__hover'
	 *
	 * @param string $setting
	 *
	 * @return string
	 */
	public function get_hover_field( $setting ) {
		return "{$this->get_field_base_name($setting)}{$this->get_suffix()}";
	}

	/**
	 * Returns the hover enabled setting field name
	 * E.g.: get_hover_enabled_field('test') => 'test__hover_enabled'
	 *
	 * @param string $setting
	 *
	 * @return string
	 */
	public function get_hover_enabled_field( $setting ) {
		return "{$this->get_field_base_name($setting)}{$this->get_enabled_suffix()}";
	}

	/**
	 * Returns setting hover value if hover is enabled;
	 * If it does not exist, return $default specified value
	 *
	 * @param string $setting
	 * @param array $attrs
	 * @param mixed $default
	 *
	 * @return mixed
	 */
	public function get_value( $setting, $attrs, $default = null ) {
		return $this->is_enabled( $setting, $attrs )
			? $this->get_raw_value( $setting, $attrs, $default )
			: $default;
	}

	/**
	 * Returns setting hover value if hover is enabled for a compose option;
	 * If it does not exist, return $default specified value
	 *
	 * @param string $setting
	 * @param string $option
	 * @param array $attrs
	 * @param mixed $default
	 *
	 * @return mixed
	 */
	public function get_compose_value( $setting, $option, $attrs, $default = null ) {
		return $this->is_enabled( $option, $attrs )
			? $this->get_raw_value( $setting, $attrs, $default )
			: $default;
	}

	/**
	 * Returns setting hover value;
	 * If it does not exist, return $default specified value
	 *
	 * @param string $setting
	 * @param array $attrs
	 * @param mixed $default
	 *
	 * @return mixed
	 */
	public function get_raw_value( $setting, $attrs, $default = null ) {
		return $this->util_get( $this->get_hover_field( $setting ), $attrs, $default );
	}

	/**
	 * Adds `:hover` in selector at the end of the selector
	 * E.g: add_hover_to_selectors('%%order_class%%% .image') >>> '%%order_class%%% .image:hover'
	 *
	 * @param string $selector
	 *
	 * @return string
	 */
	public function add_hover_to_selectors( $selector ) {
		$selectors = explode( ',', $selector );
		$selectors = array_map( 'trim', $selectors );
		// Add hover to the end of the selector, but prevent specific situations like this:
		// .my-class:after => .my-class:after:hover, should be .my-class:hover:after
		$selectors = preg_replace( '/(.+\s)*([^\::?]+)((::?[a-z|-|\(|\)|\[|\]]+)+)?$/i', '$1$2:hover$3', $selectors );

		return implode( ', ', $selectors );
	}

	/**
	 * Adds `:hover` in selector after `%%order_class%%`
	 * E.g: add_hover_to_order_class('%%order_class%%% .image') >>> '%%order_class%%%:hover .image'
	 *
	 * @param string $selector
	 *
	 * @return string
	 */
	public function add_hover_to_order_class( $selector ) {
		$selectors = explode( ',', $selector );
		$selectors = array_map( 'trim', $selectors );
		// Add hover to the end of the selector, but prevent specific situations like this:
		// .my-class:after => .my-class:after:hover, should be .my-class:hover:after
		$selectors = preg_replace( '/(.*%%order_class%%[^\s|^:]*)(.*)/i', '$1:hover$2', $selectors );

		return implode( ', ', $selectors );
	}
}

function et_pb_hover_options() {
	return ET_Builder_Module_Hover_Options::get();
}
