<?php
defined( 'ABSPATH' ) || die( 'Cheatin\' uh?' );

class SQ_Models_RoleManager {

	public $roles;

	/**
	 * Get all the Squirrly Caps
	 *
	 * @param  $role
	 *
	 * @return array
	 */
	public function getSQCaps( $role = '' ) {
		$caps = array();

		$caps['sq_seo_author'] = array(
			'sq_manage_snippet'    => true,
			'sq_manage_snippets'   => false,
			'sq_manage_settings'   => false,
			'sq_manage_focuspages' => false,
		);

		$caps['sq_seo_editor'] = array(
			'sq_manage_snippet'    => true,
			'sq_manage_snippets'   => true,
			'sq_manage_settings'   => false,
			'sq_manage_focuspages' => true,
		);

		$caps['sq_seo_admin'] = array(
			'sq_manage_snippet'    => true,
			'sq_manage_snippets'   => true,
			'sq_manage_settings'   => true,
			'sq_manage_focuspages' => true,
		);

		$caps = array_filter( $caps );

		if ( isset( $caps[ $role ] ) ) {
			return $caps[ $role ];
		}

		return $caps;
	}

	/**
	 * Register Squirrly Roles and Caps
	 * in case they don't exist
	 *
	 */
	public function addSQRoles() {
		/** @var WP_Roles $wp_roles */
		global $wp_roles;

		//$this->removeSQCaps();
		if ( function_exists( 'wp_roles' ) ) {
			$allroles = wp_roles()->get_names();
			if ( ! empty( $allroles ) ) {
				$allroles = array_keys( $allroles );
			}

			if ( ! empty( $allroles ) ) {
				foreach ( $allroles as $role ) {
					if ( $role == 'administrator' || $role == 'sq_seo_admin' ) {
						$this->updateSQCap( 'sq_seo_admin', $role );
						continue;
					}

					switch ( $role ) {
						case 'editor':
						case 'sq_seo_editor':
							$this->updateSQCap( 'sq_seo_editor', $role );
							break;
						case 'author':
						case 'sq_seo_author':
						case 'contributor':
						default:
							$role_object = get_role( $role );
							if ( $role_object->has_cap( 'edit_posts' ) ) {
								$this->updateSQCap( 'sq_seo_author', $role );
							}
							break;

					}
				}
			}

			if ( ! $wp_roles || ! isset( $wp_roles->roles ) || ! method_exists( $wp_roles, 'is_role' ) ) {
				return;
			}

			if ( ! $wp_roles->is_role( 'sq_seo_editor' ) || ! $wp_roles->is_role( 'sq_seo_admin' ) ) {
				//get all Squirrly roles and caps
				$this->addSQRole( 'sq_seo_editor', esc_html__( "Squirrly SEO Editor", 'squirrly-seo' ), 'editor' );
				$this->addSQRole( 'sq_seo_admin', esc_html__( "Squirrly SEO Admin", 'squirrly-seo' ), 'editor' );

			}

		}
	}

	/**
	 * Remove Squirrly Roles and Caps
	 */
	public function removeSQRoles() {
		global $wp_roles;

		//get all Squirrly roles and caps
		$sqcaps = $this->getSQCaps();

		if ( ! empty( $sqcaps ) ) {
			foreach ( array_keys( $sqcaps ) as $role ) {
				if ( $wp_roles->is_role( $role ) ) {
					$this->removeRole( $role );
				}

			}
		}

	}

	public function removeSQCaps() {
		if ( function_exists( 'wp_roles' ) ) {
			$allroles = wp_roles()->get_names();
			if ( ! empty( $allroles ) ) {
				$allroles = array_keys( $allroles );
			}

			if ( ! empty( $allroles ) ) {
				foreach ( $allroles as $role ) {
					$this->removeCap( $role, $this->getSQCaps( 'sq_seo_admin' ) );
					$this->removeCap( $role, $this->getSQCaps( 'sq_seo_editor' ) );
					$this->removeCap( $role, $this->getSQCaps( 'sq_seo_author' ) );
				}
			}
		}

	}

	/**
	 * Add Squirrly Role and Caps
	 *
	 * @param $sqrole
	 * @param $title
	 * @param $wprole
	 */
	public function addSQRole( $sqrole, $title, $wprole ) {
		$wpcaps = $this->getWpCaps( $wprole );
		$sqcaps = $this->getSQCaps( $sqrole );

		$this->addRole( $sqrole, $title, array_merge( $wpcaps, $sqcaps ) );
	}

	/**
	 * Update the Squirlly Caps into WP Roles
	 *
	 * @param $sqrole
	 * @param $wprole
	 */
	public function updateSQCap( $sqrole, $wprole ) {
		$sqcaps = $this->getSQCaps( $sqrole );

		$this->addCap( $wprole, $sqcaps );
	}

	/**
	 * Add a role into WP
	 *
	 * @param $name
	 * @param $title
	 * @param $capabilities
	 */
	public function addRole( $name, $title, $capabilities ) {
		add_role( $name, $title, $capabilities );
	}

	/**
	 * Add a cap into WP for a role
	 *
	 * @param $name
	 * @param $capabilities
	 */
	public function addCap( $name, $capabilities ) {
		$role = get_role( $name );

		if ( ! $role || ! method_exists( $role, 'add_cap' ) ) {
			return;
		}

		foreach ( $capabilities as $capability => $grant ) {
			if ( ! $role->has_cap( $capability ) ) {
				$role->add_cap( $capability, $grant );
			}
		}
	}

	/**
	 * Remove the caps for a role
	 *
	 * @param $name
	 * @param $capabilities
	 */
	public function removeCap( $name, $capabilities ) {
		$role = get_role( $name );

		if ( ! $role || ! method_exists( $role, 'remove_cap' ) ) {
			return;
		}

		if ( $role ) {
			foreach ( $capabilities as $capability => $grant ) {
				$role->remove_cap( $capability );
			}
		}
	}

	/**
	 * Remove the role
	 *
	 * @param $name
	 */
	public function removeRole( $name ) {
		remove_role( $name );
	}

	public function getWpCaps( $role ) {

		if ( $wprole = get_role( $role ) ) {
			return $wprole->capabilities;
		}

		return array();
	}

}