const { createLogger, format, transports, config } = require('winston');
const { combine, label, printf } = format;
const moment = require('moment');
const chalk = require('chalk');

class Logger {

    constructor(manager) {
        
        this.manager = manager;
        this.logger = createLogger({
            transports: [
                new transports.Console(),
                new transports.File({ filename: `logs/${this.date.replace(/ /g, '-')}.log` }),
                new transports.File({ filename: `logs/${this.date.replace(/ /g, '-')}-error.log`, level: 'error' })
            ]
        });

        this.client
            .on('shardCreate', (shard) => this.write(shard, "Shard created.", 'DEBUG'))
            .on('message', (shard, message) => this._handleMessage(shard, message));

    }

    //Messages coming from the shards process.send functions.
    async _handleMessage(shard, message) {
        if(message._ready
            || message._disconnect
            || message._reconnecting
            || message._sFetchProp
            || message._sEval
            || message._sRespawnAll) return undefined; //Properties used for discord.js internal sharding, must filter for.

        

    }

    //The MAIN function for writing everything to the logger.
    async write(shard, string = '', type = 'silly') {
        if(!config.npm.levels[type]) return undefined;

        const header = `[${this.date}][shard-${this._shardId(shard)}]`;
        //[04/02/2020 12:52:20][shard-00]

        this.logger.log(type, string)

    }

    _shardId(shard) {
        const id = shard.id;
        return `${id}`.length === 1 ? `0${id}` : `${id}`;
    }

    get date() {
        return moment().format("MM-DD-YYYY hh:mm:ss");
    }

}

module.exports = Logger;