import * as path from "path";
import { Firestore, getFirestore } from "firebase-admin/firestore";
import { EventContext, logger } from "firebase-functions";
import * as fw from "../fw";
import { AppConfig } from "../config";

interface CloudFunctionHandler {
	(context: EventContext): PromiseLike<any> | any;
}

interface TaskCore {
	getConfig: () => Promise<AppConfig>;
	getFirestore: () => Firestore;
	getLogger: () => typeof logger;
}

export function withTaskCore<T extends CloudFunctionHandler>(fn: (core: TaskCore) => T): T {
	return fn({
		getConfig: async () => {
			return (await fw.Configure(path.resolve(__dirname, "../config"))).app as AppConfig;
		},
		getFirestore: () => getFirestore(),
		getLogger: () => logger,
	});
}