import { createMiddleware } from "hono/factory";
import * as errorMap from "@/lib/errors";
import * as messageMap from "@/lib/messages";
import type { StatusCode } from "hono/utils/http-status";

type ErrorKey = keyof typeof errorMap;
type MessageKey = keyof typeof messageMap;

export const params_middleware = createMiddleware(async (c, next) => {
    const errorParam = c.req.query("error");
    const messageParam = c.req.query("message");

    if (errorParam && errorParam in errorMap) {
        const ErrorClass = errorMap[errorParam as ErrorKey];
        const instance = new ErrorClass();
        c.set("error", instance.message);
        if (instance.statusCode) {
            c.status(instance.statusCode as StatusCode)
        }
    } else if (errorParam && !(errorParam in errorMap)) c.set("error", "Unknown error. Might be an issue on our end.");

    if (messageParam && messageParam in messageMap) {
        const message = messageMap[messageParam as MessageKey];
        c.set("message", message.message);
    }

    await next();
});