import GetApiHost from "./GetApiHost";

// const { formatUrl } = GetApiHost();

type UrlRoutingFunction<UrlRouteArgs> = (urlRouteArgs: UrlRouteArgs) => string;

interface RequestHeaders {
  [name: string]: string;
}

interface RouteSetup<UrlRouteArgs> {
    method: string;
    multipart?: boolean;
    routingFunction: UrlRoutingFunction<UrlRouteArgs>;
} 
  
const METHOD_OMITS_BODY: { [key: string]: boolean } = {
  DELETE: false,
  GET: true,
  OPTIONS: true,
  PATCH: false,
  POST: false,
  PUT: false,
};

const MakeRequest = <UrlRouteArgs, Request, Response, UrlParams>(routeSetup: RouteSetup<UrlRouteArgs>) :  (urlRouteArgs: UrlRouteArgs, request: Request, queries?: UrlParams) => Promise<Response> => {
    return async function(urlRouteArgs: UrlRouteArgs, request: Request, queries?: any) : Promise<Response> {
        const newQueries = queries ? Object.keys(queries).map((key, i) => {
            return `${ i ? "&" : "" }${ key }=${ Array.isArray(queries[key]) ? queries[key].join(`&${ key }=`) : queries[key] }`
        }).join("") : null;

        const endpoint = `${ routeSetup.routingFunction(urlRouteArgs) }${ newQueries ? "?" + newQueries : "" }`;
        const method = routeSetup.method;
        const methodOmitsBody = METHOD_OMITS_BODY[method] || false;

        // return fetch(formatUrl(endpoint), {
        return fetch(`https://api.fakeyou.com${ endpoint }`, {
            method,
            headers: {
                "Accept": "application/json",
                ...methodOmitsBody? {} : { "Content-Type": "application/json" }
            },
            credentials: 'include',
            ...methodOmitsBody ? {} : { body: JSON.stringify(request) },
        })
        .then(res => res.json())
        .then(res => {
            if (!res.success && res && (res.voice_token || res.dataset_token)) {
                return res;
            }
            else if (res && "success" in res) {
                return res;
            } else Promise.reject();
        })
        .catch(e => ({ success : false }));
    }
};

export default MakeRequest;