const Discord = require('discord.js');
var fs = require('fs');
const bot = new Discord.Client();

const IDLE = 0;
const LEARN_RESPONSE = 1;
const LEARN_MOOD = 2;
const DISABLED = 3


var Word = class{
    constructor(str, feeling){
        this.str = str;
        this.feeling;
    }
};

var Response = class{
    constructor(prompt, resp){
        this.prompt = prompt;
        this.resp = resp;
    }
};


String.prototype.replaceAll = function(str1, str2, ignore)
{
    return this.replace(new RegExp(str1.replace(/([\/\,\!\\\^\$\{\}\[\]\(\)\.\*\+\?\|\<\>\-\&])/g,"\\$&"),(ignore?"gi":"g")),(typeof(str2)=="string")?str2.replace(/\$/g,"$$$$"):str2);
}



var AI = [mode = 0, mood = 0, lastMessage = "", myLastMessage = "", nextWord = '', learnWords = [], learnIndex = 0, learnPhrase = '', debugStr = '',otherMessage = ''];

var words = [new Word('overwatch', 5)];
var responses = [new Response('you suck', 'no u')];

var responseJSONArray = fs.readFileSync('responses.json').toString();
responses = JSON.parse(responseJSONArray);

AI.mode = IDLE;

function saveResponses()
{
    var str = JSON.stringify(responses);

    fs.writeFileSync('responses.json',str);
}


commonWords = ['you','i','the','a','and','me','is', 'an', 'are', 'be', 'yo', 'to', 'so', 'no', 'your', 'si'];


function findResponse(prompt)
{
    var index = -1;
    var matchScore = 0;
    var matchTemp = 0;
    var respArray = [];
    var promptArray = [];

    prompt = prompt.replaceAll('?', '');
    prompt = prompt.replaceAll('.', '');
    prompt = prompt.replaceAll('!', '');
    prompt = prompt.replaceAll('<', '');
    prompt = prompt.replaceAll('>', '');
    prompt = prompt.replaceAll(',', '');
    prompt = prompt.replaceAll('+', '');
    prompt = prompt.replaceAll('-', '');
    prompt = prompt.replaceAll('*', '');
    prompt = prompt.replaceAll('\'', '');
    prompt = prompt.replaceAll('!', '');

    for(i=0; responses.length > i; i++){
        matchTemp = 0;
        respArray = responses[i].prompt.split(" ");
        if(responses[i].prompt == prompt){
            index = i;
        }
        else{
            for(j=0; respArray.length > j; j++){

                if(prompt.includes(respArray[j]) && commonWords.indexOf(respArray[j]) == -1){
                    if(respArray[j].length > 2){
                        matchTemp = matchTemp + respArray[j].length;
                    }
                    //console.log("matched: "  + respArray[j]);
                }
            }
            if(matchTemp > matchScore){
                index = i;
                matchScore = matchTemp;
                matchTemp = 0;
            }
        }
    }
    if(prompt && index > -1){
        console.log(prompt + " was matched with " + responses[index].prompt + " with a score of " + matchScore);
    }

    return index;

}

function translatePhrase(phrase)
{
    var str = phrase;
    str = str.replace('#mlm', AI.myLastMessage);
    str = str.replace('#lm', AI.lastMessage);

        if(str.includes('#_disable'))
        {
            AI.mode = DISABLED;
        }


    return str;
}

function findWord(word)
{

}


bot.on('message', (message) => {

    //(message.author.id == '87019827985666048' || message.author.id == '198635694187347970')
    var authorized = true;
    var msg = message.toString().toLowerCase();
    if(AI.mode != IDLE){
        authorized = false;
        if(message.author.id == '87019827985666048' || message.author.id == '198635694187347970')
        {
            authorized = true;
        }
    }
    if(message.channel.id != '284401695188844544'){
        authorized = false;
    }
    if(msg == 'wrong'){
        authorized = false;
    }
    if(msg == 'bobe')
    {
        message.channel.sendMessage("yes?");
        authorized = false;
        AI.mode = IDLE;
    }

    if(AI.otherMessage == 'what' && AI.lastMessage == 'what'){
        message.channel.sendMessage("I see what you're doing. Good bye.");
        authorized = false;
        AI.otherMessage = '';
        AI.mode = DISABLED;
    }

    if(AI.otherMessage == 'no' && AI.lastMessage == 'no'){
        message.channel.sendMessage("Fine, I'll just be quiet.");
        authorized = false;
        AI.otherMessage = '';
        AI.mode = DISABLED;
    }


    if((message.author.id != '284164256818266113') && authorized)
    {
        ignoreList = '!wrong,!debug,!bobe,#_disable';

        if((AI.mode == IDLE) && ignoreList.includes(msg) == false){
            console.log('setting last message to [' + msg + ']');
            AI.otherMessage = AI.lastMessage;
            AI.lastMessage = msg;
        }

        switch(AI.mode){

            case IDLE:
                if(msg == 'shut up bobe'){
                   AI.mode = DISABLED;
                   message.channel.sendMessage("ok.");
                   break;
                }

                if(msg == '!wrong'){

                    AI.mode = LEARN_MOOD;

                }

                if(msg == 'wrong'){

                    AI.mode = LEARN_MOOD;

                }

                if(msg == '!debug')
                {
                    message.channel.sendMessage(AI.debugStr);
                }



                if(findResponse(msg) > -1 && ignoreList.includes(msg) == false){
                    var myResponse = translatePhrase(responses[findResponse(msg)].resp);
                    if(AI.mode == IDLE && myResponse != '#_'){
                        message.channel.sendMessage(myResponse);
                        AI.myLastMessage = myResponse;
                        AI.debugStr = "I translated:\n[" + msg + "]\nas\n[" + responses[findResponse(msg)].prompt + "]\nand responded with\n[" + translatePhrase(responses[findResponse(msg)].resp) + "]";
                    }
                    break;
                }
                else
                {
                    AI.mode = LEARN_MOOD;
                    message.channel.sendMessage("I don't know what to *freaking* say!\n\nI need Griff or Rob to tell me");
                    AI.learnPhrase = AI.lastMessage;
                    AI.learnWords = AI.lastMessage.split(" ");
                    AI.learnIndex = AI.learnWords.length - 1;
                }
            case LEARN_MOOD:
                if(
                    //AI.learnIndex > -1
                    1==2){
                    var word = AI.learnWords[AI.learnIndex];
                    var mystr = "And how should I feel about **¿**?[0 to 5]\n0 is neutral(don't feel anything)\n5 is good\n1 is bad";
                    message.channel.sendMessage(mystr.replace('¿', word));
                    AI.learnIndex = AI.learnIndex - 1;
                    AI.mode = LEARN_MOOD;
                }
                else{
                    AI.mode = LEARN_RESPONSE;
                    message.channel.sendMessage("What should I say in response to **" + AI.learnPhrase + "**?");
                }

                break;
            case LEARN_RESPONSE:
                AI.learnPhrase = AI.learnPhrase.replaceAll('?', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('.', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('!', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('<', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('>', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll(',', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('+', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('-', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('*', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('\'', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('"', '');
                AI.learnPhrase = AI.learnPhrase.replaceAll('!', '');
                responses.push(new Response(AI.learnPhrase, msg));
                saveResponses();
                console.log('Added response\nprompt: ' + AI.learnPhrase + '\nresp: ' + msg);
                message.channel.sendMessage("Alright. I'll remember that.");
                AI.mode = IDLE;
                break;
            case DISABLED:
                if(msg == '!bobe'){
                    AI.mode = IDLE;
                    message.channel.sendMessage("huh");
                }
            default:
                break;
        }
    }


})

bot.login('Mjg0MTY0MjU2ODE4MjY2MTEz.C4_oJQ.2D6o_lbVIZFXIi1NtEmshsiQGiM');