/**
 * ==============================================================================
 * Imports
 * ==============================================================================
 */
const https = require("https");

/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */
/** ****************************************************************************** */

/**
 * @typedef {object} FunctionReturn
 * @property {boolean} success - Did the function run successfully?
 * @property {{
 *   id: number,
 *   first_name: string,
 *   last_name: string,
 *   username: string,
 *   email: string,
 *   phone: string,
 *   social_id: [string],
 *   image: string,
 *   image_thumbnail: string,
 *   verification_status: [number=0],
 * }} payload - Payload
 */

/**
 * ==============================================================================
 * Main Function
 * ==============================================================================
 * @async
 *
 * @param {object} params - Single Param object containing params
 * @param {String} params.key - API Key
 * @param {String} params.database - Target Database
 * @param {number} params.userId - user id
 * @param {string[]} [params.fields] - fields to select
 *
 * @returns { Promise<FunctionReturn>}
 */
async function getUser({ key, userId, database, fields }) {
    /**
     * Make https request
     *
     * @description make a request to datasquirel.com
     */
    const httpResponse = await new Promise((resolve, reject) => {
        const defaultFields = ["id", "first_name", "last_name", "email", "username", "image", "image_thumbnail", "verification_status", "date_created", "date_created_code", "date_created_timestamp", "date_updated", "date_updated_code", "date_updated_timestamp"];

        const updatedFields = fields && fields[0] ? [...defaultFields, ...fields] : defaultFields;

        const reqPayload = JSON.stringify({
            userId,
            database,
            fields: [...new Set(updatedFields)],
        });

        const httpsRequest = https.request(
            {
                method: "POST",
                headers: {
                    "Content-Type": "application/json",
                    "Content-Length": Buffer.from(reqPayload).length,
                    Authorization: key,
                },
                port: 443,
                hostname: "datasquirel.com",
                path: `/api/user/get-user`,
            },

            /**
             * Callback Function
             *
             * @description https request callback
             */
            (response) => {
                var str = "";

                response.on("data", function (chunk) {
                    str += chunk;
                });

                response.on("end", function () {
                    resolve(JSON.parse(str));
                });

                response.on("error", (err) => {
                    reject(err);
                });
            }
        );

        httpsRequest.write(reqPayload);
        httpsRequest.end();
    });

    /** ********************************************** */
    /** ********************************************** */
    /** ********************************************** */

    return httpResponse;
}

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module.exports = getUser;