const fs = require('fs')
const irc = require('irc');
const readline = require('readline')
const model = 'user,date,message'
const { dirname } = require('path');
const rootDir = dirname(require.main.filename);
const settings = JSON.parse(fs.readFileSync(rootDir + '/settings.json'));

let currentChannel = settings.channels[0]

const client = new irc.Client(settings.server, settings.username, {
    channels: settings.channels,
    userName: 'gordown',
    realName: 'Gor Down',
    autoRejoin: true,
    retryCount: 100000000,
    retryDelay: 2*60*1000,
    port: 6697,
    secure: true,
    certExpired: true,
    selfSigned: true
});

client.addListener('registered', () => {

    //////////////LISTENERS////////////////////

    client.addListener('error', (message) => {
        console.log('Error: ' + message)
    })
    
    client.addListener('message', function (from, channel, message) {
        //DMS SENT TO THE BOT
        if (channel === client.nick){
            console.log("DM from " + from + ": " + message)
            
            const args = message.split("# ")[1]
            if(args){
                if(args === "GetInfo") client.say(from, "# HeresInfo: japanese nationalist")
            }
            return
        } 


        logMessage(from, channel, message)
    });
    

    client.addListener('join', (channel, nick) => {
        logMessage(nick, channel, "Joined the channel")
        //I'M THE ANIME GIRL FAGGOT
        if (nick === client.nick){
            sendMessage(channel, "# Appears as Jhenna_Hina.http://www.mermeliz.com/hina/dl/Jhenna_Hina.AVB")
        }else{
            client.say(nick, "# Appears as Jhenna_Hina.http://www.mermeliz.com/hina/dl/Jhenna_Hina.AVB")
        }
    })
    
    client.addListener('part', (channel, nick, reason, _message) => {
        logMessage(nick, channel, `Left${reason ? ":" + reason : "."}` )
    })

    client.addListener('kick', (channel, nick, by, reason, _message) => {
        logMessage(nick, channel, "Kicked by: " + by + ": " + reason)
    })
    ////////////////////////////////////////////////////////////////

    

    ///LOGGING AND SHIT/////////////////////////////////////////////
    function logMessage(from, channel, message){
        const currentDate = new Date();
        ////////////////////////////////////////////////////////////////DATE FORMAT
        const year = currentDate.getFullYear();
        const month = String(currentDate.getMonth() + 1).padStart(2, '0');
        const day = String(currentDate.getDate()).padStart(2, '0');
        const hours = String(currentDate.getHours()).padStart(2, '0');
        const minutes = String(currentDate.getMinutes()).padStart(2, '0');
        const seconds = String(currentDate.getSeconds()).padStart(2, '0');
    
        ////////////////////////////////////////////////////////////////
        const formattedDate = `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
        const filename = rootDir + '/logs/' + channel + '.csv'
    
        if (!fs.existsSync(filename)){
            fs.writeFileSync(filename, model)
        }
        
        fs.appendFileSync(filename, `\n${from},${formattedDate},"${message}"`)
        if(from !== settings.username)console.log(`${from}: ${message}`)
    }
    
    function sendMessage(channel, message){

        logMessage(settings.username, channel, message)
        client.say(channel, message)
    }

    ////////////////////////////////////////////////////////////////


    //COMMAND LINE SHIT/////////////////////////////////

    const rl = readline.createInterface({
        input: process.stdin,
        output: process.stdout
      });
    
    function messagePrompt(){
        rl.question(settings.username + ': ', (command) => {

            
            const split = command.split("!")
            const prefix = split[0]
            if(prefix === "g"){
                const terminalCommand = split[1].split(' ')[0]
                const splitArgs = split[1].split(' ')
                const args = splitArgs[1] ? splitArgs[1] : ""
                switch (terminalCommand) {
                    case "switch_channel":
                        if (!args) {
                            console.log("Arguments required");
                            break
                        }
                        if(!checkIfIsInChannelAndLog(args)) break
                        currentChannel = args;
                        console.log("Current Channel set to:", currentChannel);
                        break;
                    case "get_current_channel":
                        console.log(currentChannel)
                        break
                    case "get_users":
                        let channel = currentChannel
                        if(args){
                            if(!checkIfIsInChannelAndLog(channel)) break
                            channel = args
                        }
                        for (user in client.chans[channel].users){
                            console.log(user)
                        }
                        break
                    case "message":
                        if(!args){
                            console.log("Arguments required")
                        }
                        const message = getMessageFromArgs(splitArgs)
                        if (!message) {
                            console.log("Message required");
                            break
                        }
                        client.say(args, message)
                        break
                    case "whois":
                        if(!args) return console.log("Arguments required")
                        client.whois(args, (info) => {
                            console.log(info)
                        })
                        break
                    default:
                        console.log("Comando inexistente")
                        break
                }
            }else{
                sendMessage(currentChannel, command)
            }
            messagePrompt()
        });
    }
    
    rl.prompt();
    messagePrompt()
})

function checkIfIsInChannelAndLog(channel){
    if(!client.chans[channel]){
        console.log(`You're not in that channel!`);
        return false
    }
    return true
}

function getMessageFromArgs(splitArgs){
    splitArgs.shift()
    splitArgs.shift()
    return splitArgs.join(" ")
}