<?php

/**

 * User API: WP_Role class

 *

 * @package WordPress

 * @subpackage Users

 * @since 4.4.0

 */

/**

 * Core class used to extend the user roles API.

 *

 * @since 2.0.0

 */

class WP_Role {

	/**

	 * Role name.

	 *

	 * @since 2.0.0

	 * @var string

	 */

	public $name;

	/**

	 * List of capabilities the role contains.

	 *

	 * @since 2.0.0

	 * @var bool[] Array of key/value pairs where keys represent a capability name and boolean values

	 *             represent whether the role has that capability.

	 */

	public $capabilities;

	/**

	 * Constructor - Set up object properties.

	 *

	 * The list of capabilities must have the key as the name of the capability

	 * and the value a boolean of whether it is granted to the role.

	 *

	 * @since 2.0.0

	 *

	 * @param string $role         Role name.

	 * @param bool[] $capabilities Array of key/value pairs where keys represent a capability name and boolean values

	 *                             represent whether the role has that capability.

	 */

	public function __construct( $role, $capabilities ) {

		$this->name         = $role;

		$this->capabilities = $capabilities;

	}

	/**

	 * Assign role a capability.

	 *

	 * @since 2.0.0

	 *

	 * @param string $cap   Capability name.

	 * @param bool   $grant Whether role has capability privilege.

	 */

	public function add_cap( $cap, $grant = true ) {

		$this->capabilities[ $cap ] = $grant;

		wp_roles()->add_cap( $this->name, $cap, $grant );

	}

	/**

	 * Removes a capability from a role.

	 *

	 * @since 2.0.0

	 *

	 * @param string $cap Capability name.

	 */

	public function remove_cap( $cap ) {

		unset( $this->capabilities[ $cap ] );

		wp_roles()->remove_cap( $this->name, $cap );

	}

	/**

	 * Determines whether the role has the given capability.

	 *

	 * @since 2.0.0

	 *

	 * @param string $cap Capability name.

	 * @return bool Whether the role has the given capability.

	 */

	public function has_cap( $cap ) {

		/**

		 * Filters which capabilities a role has.

		 *

		 * @since 2.0.0

		 *

		 * @param bool[] $capabilities Array of key/value pairs where keys represent a capability name and boolean values

		 *                             represent whether the role has that capability.

		 * @param string $cap          Capability name.

		 * @param string $name         Role name.

		 */

		$capabilities = apply_filters( 'role_has_cap', $this->capabilities, $cap, $this->name );

		if ( ! empty( $capabilities[ $cap ] ) ) {

			return $capabilities[ $cap ];

		} else {

			return false;

		}

	}

}