backend/src/routes/user/logout.ts

import { echo } from "@atums/echo";
import {
	errorMessages,
	httpStatus,
	successMessages,
} from "#environment/constants";
import { cookieService, sessionManager } from "#lib/auth";

import type { ExtendedRequest, LogoutResponse, RouteDef } from "#types/server";

const routeDef: RouteDef = {
	method: ["POST", "DELETE"],
	accepts: "*/*",
	returns: "application/json",
};

async function handler(request: ExtendedRequest): Promise<Response> {
	try {
		await sessionManager.invalidateSession(request);
		const clearCookie = cookieService.clearCookie();

		const response: LogoutResponse = {
			code: httpStatus.OK,
			success: true,
			message: successMessages.LOGOUT_SUCCESSFUL,
		};

		return Response.json(response, {
			status: httpStatus.OK,
			headers: {
				"Set-Cookie": clearCookie,
			},
		});
	} catch (error) {
		echo.error({
			message: "Error during user logout",
			error,
		});

		const response: LogoutResponse = {
			code: httpStatus.INTERNAL_SERVER_ERROR,
			success: false,
			error: errorMessages.INTERNAL_SERVER_ERROR,
		};
		return Response.json(response, {
			status: httpStatus.INTERNAL_SERVER_ERROR,
		});
	}
}

export { handler, routeDef };