import type { GameData } from "$lib/GameData";
import { isGamePlayer, type GamePlayer } from "$lib/GamePlayer";
import { isListing } from "$lib/Listing";
import { Game } from "$lib/server/Game";
import { updateListing } from "$lib/server/modifyListing";
import {
	readListingById,
	ServerCollections,
	writeUpdatedListing,
} from "$lib/server/mongo";
import { getBody, getParam, ResourceId } from "$lib/server/requestTools";
import {
	badRequestResponse,
	conflictResponse,
	notFoundResponse,
	singleResponse,
} from "$lib/server/responseBodies";
import { retry } from "$lib/server/retry";
import type { RequestHandler } from "@sveltejs/kit";

export const PUT: RequestHandler = async ({ params, request }): Promise<Response> => {
	const id = getParam(params, ResourceId.Game);

	if (id === null) {
		return badRequestResponse("missing playerid parameter");
	}

	let player: GamePlayer | null;
	try {
		player = await getBody(request, isGamePlayer);
	} catch (err) {
		return badRequestResponse("missing player body");
	}

	if (!player) {
		return badRequestResponse("malformed request");
	}

	const putItem = async (): Promise<[boolean, Response]> => {
		const listing = await readListingById(
			ServerCollections.Games,
			id,
			isListing<GameData>,
		);

		if (!listing) {
			return [false, notFoundResponse()];
		}

		if (listing.data.isStarted === true) {
			return [false, conflictResponse()];
		}

		const game = Game.from(listing.data);
		if (game.setPlayerReady(player) === null) return [false, notFoundResponse()];

		const res = await writeUpdatedListing(
			ServerCollections.Games,
			updateListing(listing, game),
		);

		if (!res.acknowledged || res.modifiedCount === 0) {
			return [true, conflictResponse()];
		}

		return [false, singleResponse(game)];
	};

	return await retry(putItem);
};