import {createLogger} from "@gongt/ts-stl-library/debug/create-logger";
import {LOG_LEVEL} from "@gongt/ts-stl-library/debug/levels";
import DI, {DDNames} from "@gongt/ts-stl-library/DI";
import {NextFunction, Request, Response} from "express-serve-static-core";

const debug = createLogger(LOG_LEVEL.DATA, 'protect');

export function serverRequestOnly(customKey?: string) {
	const key = customKey || DI.get(DDNames.serverRequestKey);
	
	return function serverRequestOnly(req: Request, res: Response, next: NextFunction) {
		if (req.headers && req.headers['x-server-key'] === key) {
			next();
		} else {
			debug('request key check\n\tinput  = %s\n\texpect = %s', req.headers['x-server-key'], key);
			next(new Error('Can not request ' + req.originalUrl));
		}
	}
}