// Debug
const { DebugBuilder } = require("../utilities/debugBuilder.js");
const log = new DebugBuilder("server", "httpRequests");
// Modules
const http = require("http");
const { isJsonString } = require("./utils.js");

exports.requestOptions = class requestOptions {
    /**
     * Construct an HTTP request
     * @param {*} method Method of request to use [GET, POST]
     * @param {*} headers Headers of the request, not required but will get filled with default values if not set
     * @param {*} hostname The destination of the request
     * @param {*} port The port for the destination, will use 3001 by default
     */
    constructor(path, method, hostname, port = 3001, headers = undefined, timeout = undefined) {
        this.hostname = hostname;
        this.path = path;
        this.port = port;
        this.method = method;
        this.timeout = timeout;
        if (method === "POST"){            
            this.headers = headers ?? {
                'Content-Type': 'application/json',
            }
        }
    }
}

/**
 * Send the HTTP request to the server
 * @param requestOptions
 * @param data
 * @param callback
 */
exports.sendHttpRequest = function sendHttpRequest(requestOptions, data, callback){
    log.DEBUG("Sending a request to: ", requestOptions.hostname, requestOptions.port)
    // Create the request
    const req = http.request(requestOptions, res => {
        res.on('data', (data) => {
            const responseObject = {
                "statusCode": res.statusCode,
                "body": (isJsonString(data.toString)) ? JSON.parse(data) : data.toString()
            };
            log.DEBUG("Response Object: ", responseObject);
            callback(responseObject);
        })
    }).on('error', err => {
        if (err.code === "ECONNREFUSED"){
            // Bot refused connection, assumed offline
            log.WARN("Connection Refused");
        }
        else log.ERROR('Error: ', err.message, err);
        callback(undefined);
        // TODO need to handle if the server is down
    })

    // Write the data to the request and send it
    req.write(data);
    req.end();
}