private static function _helper_auth_connect() {
		if ( empty( $_GET['wc-helper-nonce'] ) || ! wp_verify_nonce( wp_unslash( $_GET['wc-helper-nonce'] ), 'connect' ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
			self::log( 'Could not verify nonce in _helper_auth_connect' );
			wp_die( 'Could not verify nonce' );
		}

		$redirect_uri = add_query_arg(
			array(
				'page'             => 'wc-addons',
				'section'          => 'helper',
				'wc-helper-return' => 1,
				'wc-helper-nonce'  => wp_create_nonce( 'connect' ),
			),
			admin_url( 'admin.php' )
		);

		$request = WC_Helper_API::post(
			'oauth/request_token',
			array(
				'body' => array(
					'home_url'     => home_url(),
					'redirect_uri' => $redirect_uri,
				),
			)
		);

		$code = wp_remote_retrieve_response_code( $request );

		if ( 200 !== $code ) {
			self::log( sprintf( 'Call to oauth/request_token returned a non-200 response code (%d)', $code ) );
			wp_die( 'Something went wrong' );
		}

		$secret = json_decode( wp_remote_retrieve_body( $request ) );
		if ( empty( $secret ) ) {
			self::log( sprintf( 'Call to oauth/request_token returned an invalid body: %s', wp_remote_retrieve_body( $request ) ) );
			wp_die( 'Something went wrong' );
		}

		/**
		 * Fires when the Helper connection process is initiated.
		 */
		do_action( 'woocommerce_helper_connect_start' );

		$connect_url = add_query_arg(
			array(
				'home_url'     => rawurlencode( home_url() ),
				'redirect_uri' => rawurlencode( $redirect_uri ),
				'secret'       => rawurlencode( $secret ),
			),
			WC_Helper_API::url( 'oauth/authorize' )
		);

		wp_redirect( esc_url_raw( $connect_url ) );
		die();
	}