const chalk = require('chalk');
const nodeFetch = (...args) => import('node-fetch').then(({default: fetch}) => fetch(...args));

const utils = {
    getDateString: () => {
        let today = new Date();
        let dateNow = today.toLocaleDateString();

        return `${dateNow}`;
    },
    getTimeString: () => {
        let today = new Date();
        let timeNow = today.toLocaleTimeString();

        return `${timeNow}`;
    },
    getDateTimeString: (delimiter = true) => {
        let today = new Date();
        let dateString = `${today.toLocaleDateString()} ${today.toLocaleTimeString()}`;
        if (delimiter) {
            dateString = `[${dateString}]`;
        }

        return dateString;
    },
    getDateTimeISOString: (delimiter = true) => {
        let today = new Date();
        let dateString = today.toISOString();
        if (delimiter) {
            dateString = `[${dateString}]`;
        }

        return dateString;
    },
    async fetchApi(price, next) {
        let url = `${process.env.GOLDAPI_URL}/${price.metal}/${price.currency}`;
        // url pour provoquer une erreur en dev : url = `https://www.goldapi.ioppppp/api/${price.metal}/${price.currency}`;
        let options = {
            method: 'GET',
            headers: {
                'x-access-token': process.env.GOLDAPI_TOKEN,
                'Content-Type': 'application/json'
            },
            redirect: 'follow'
        };
        try {
            // Pour tester le retour d'erreur : return { errors: { name: 'error name', message: 'error message', type: 'TYPE', code: 'CODE' } };
            const response = await nodeFetch(url, options);
            if (response.status >= 200 && response.status < 400) {
                console.log(`${utils.getDateTimeISOString()}`, chalk.green(`${price.metal} | ${price.currency} - Réception du prix spot via API`), chalk.magenta(price.price), `${response.status} ${response.statusText}`);
                price = response.json();
                price.then(values => {
                    values.timestamp *= 1000;
                    return values;
                });
            } else {
                console.log(`${utils.getDateTimeISOString()}`, chalk.red(`${price.metal} | ${price.currency} - Erreur ${response.status} ${response.statusText} - Réutilisation du prix stocké`), chalk.magenta(price.price));
                price = { errors: { name: response.statusText, message: `Une erreur ${response.status} '${response.statusText}' est survenue lors de la récupération des prix spots`, type: 'API Error', code: response.status } };
            }
            return price;
        } catch (error) {
            console.log(`${utils.getDateTimeISOString()}`, chalk.red(`${price.metal} | ${price.currency} - fetchApi error`));
            return { errors: { name: error.name, message: error.message, type: error.type, code: error.code } };
        }
    }
};

module.exports = utils;