const fetch = require('node-fetch');

const defaultURL = 'https://api.randomuser.me/';


// request -- startline, headers, and body
const getRequestInit = {
    method: 'GET', // *GET, POST, PUT, DELETE, etc.
    mode: 'cors', // no-cors, cors, *same-origin
    cache: 'no-cache', // *default, no-cache, reload, force-cache, only-if-cached
    credentials: 'same-origin', // include, *same-origin, omit
    headers: {
        'Content-Type': 'application/json',
        // 'Content-Type': 'application/x-www-form-urlencoded',
    },
    redirect: 'follow', // manual, *follow, error
    referrer: 'no-referrer', // no-referrer, *client
    //body: JSON.stringify(data), // body data type must match "Content-Type" header
}

const handleErrors = (response) => {
    // Can handle response.status codes, but this is very basic implimentation
    if (!response.ok) throw Error(response.status);
    return response;
}

// First implimentation with promises. -- Least favorite
function getData(url = defaultURL) {

    // Fetch data with url parameter, and request info.
    return fetch(url, getRequestInit)
        .then(handleErrors)
        .then( (response) => {
            return response.json();
        })
        .catch( (error) => {
            console.log("Error fetching random users: ", error.message);
        });
};


// Async and Await implimentation -- My favorite
const getDataASync = async (url = defaultURL) => {
    try {
        const response = await fetch(url, getRequestInit);
        const { results } = await response.json();

        return results;
    } catch(error) {
        //Do magic error stuff
        console.log("Error fetching random users: ", error.message);
    }
};

// Async and Await implimentation -- Second favorite
const getDataAsyncTwo = async (url = defaultURL) => {
        return await fetch(url, getRequestInit)
        .then(handleErrors)
        .then( async (response) => {
            let { results } = await response.json();
            return results;
        })
        .catch((error) => {
            console.log("Error fetching random users: ", error.message);
        })
};

// Execute fetching arbritrary user data
//getData().then( (data) => console.log(data.results) );
getDataASync().then((data) => console.log(data));
//getDataAsyncTwo().then( (data) => console.log(data));