import path from "path";
import fs from "fs";
import grabHostNames from "../../utils/grab-host-names";
import apiGetUser from "../../functions/api/users/api-get-user";
import { GetUserFunctionReturn } from "../../types";

type Param = {
    key: string;
    database: string;
    userId: number;
    fields?: string[];
    useLocal?: boolean;
    apiVersion?: string;
};

/**
 * # Get User
 */
export default async function getUser({
    key,
    userId,
    database,
    fields,
    useLocal,
    apiVersion = "v1",
}: Param): Promise<GetUserFunctionReturn> {
    /**
     * Initialize
     */
    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 grabedHostNames = grabHostNames();
    const { host, port, scheme } = grabedHostNames;

    if (useLocal) {
        return await apiGetUser({
            userId,
            fields: [...new Set(updatedFields)],
            dbFullName: database,
        });
    }

    /**
     * Make https request
     *
     * @description make a request to datasquirel.com
     */
    const httpResponse = await new Promise((resolve, reject) => {
        const httpsRequest = scheme.request(
            {
                method: "POST",
                headers: {
                    "Content-Type": "application/json",
                    "Content-Length": Buffer.from(reqPayload).length,
                    Authorization:
                        key ||
                        process.env.DSQL_FULL_ACCESS_API_KEY ||
                        process.env.DSQL_API_KEY,
                },
                port,
                hostname: host,
                path: `/api/${apiVersion}/users/${database}/${userId}`,
            },

            /**
             * 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 as GetUserFunctionReturn;
}