// Config
require('dotenv').config();
// Debug
const { DebugBuilder } = require("../utilities/debugBuilder.js");
const log = new DebugBuilder("server", "adminController");
// Utilities
const mysqlHandler = require("../utilities/mysqlHandler");
const utils = require("../utilities/utils");
const requests = require("../utilities/httpRequests");
const { leaveServerWrapper } = require("../commands/leave");
const { joinServerWrapper } = require("../commands/join");


/** Get the presets of all online nodes, can be used for functions
 * 
 * @param callback Callback function
 * @returns {*} A list of the systems online
 */
async function getPresetsOfOnlineNodes(callback) {
    mysqlHandler.getOnlineNodes((onlineNodes) => {
        return callback(onlineNodes);
    });
}

async function getNodeBotStatus(nodeId, callback) {
    mysqlHandler.getNodeInfoFromId(nodeId, (nodeObject) =>{
        reqOptions = new requests.requestOptions("/bot/status", "GET", nodeObject.ip, nodeObject.port, undefined, 5);
        requests.sendHttpRequest(reqOptions, JSON.stringify({}), (responseObject) => {
            if (responseObject === false) {
                // Bot is joined                
            }
            else {
                // Bot is free
            }
            return callback(responseObject);
        });
    });
}


/** Return to requests for the presets of all online nodes, cannot be used in functions  
 * 
 * @param {*} req Express request parameter
 * @param {*} res Express response parameter
 */
exports.getAvailablePresets = async (req, res) => {
    await getPresetsOfOnlineNodes((systems) => {
        res.status(200).json({
            "systemsOnline": systems
        });
    })    
}

/** Request a node to join the server listening to a specific preset
 * 
 * @param {*} req Express request parameter
 * @var {*} req.body.preset The preset to join (REQ)
 * @var {*} req.body.nodeId The specific node to join (OPT/REQ if more than one node has the preset)
 * @var {*} req.body.clientId The ID of the client that we want to join with
 * @var {*} req.body.channelId The channel Id of the discord channel to join
 * @param {*} res Express response parameter
 */
exports.joinPreset = async (req, res) => {
    if (!req.body.preset) return res.status(400).json("No preset specified");
    if (!req.body.nodeId) return res.status(400).json("No node ID specified");
    if (!req.body.clientId) return res.status(400).json("No client ID specified");
    if (!req.body.channelId) return res.status(400).json("No channel ID specified");

    const preset = req.body.preset;
    const nodeId = req.body.nodeId;
    const clientId = req.body.clientId;
    const channelId = req.body.channelId;

    const joinedClient = await joinServerWrapper(preset, channelId, clientId, nodeId);
    if (!joinedClient) return res.send(400).json("No joined client");
    return res.send(200).json(joinedClient);
}

/** Request a node to join the server listening to a specific preset
 * 
 * @param {*} req Express request parameter
 * @param {*} res Express response parameter
 * @var {*} req.body.clientId The ID of the client to disconnect
 */
exports.leaveServer = async (req, res) => {
    if (!req.body.clientId) return res.status(400).json("No clientID specified");

    const clientId = req.body.clientId;

    await leaveServerWrapper(clientId)

    return res.send(200);
}