const TelegramBot = require('node-telegram-bot-api');

// replace the value below with the Telegram token you receive from @BotFather
let token = require("./credentials.json").token;

// Meme creator library
const memeLib = require('nodejs-meme-generator');

const memeGenerator = new memeLib({
    canvasOptions: { // optional
        canvasWidth: 500,
        canvasHeight: 500
    },
    fontOptions: { // optional
        fontSize: 46,
        fontFamily: 'impact',
        lineHeight: 2
    }
});

//Required options for the meme creator.


// memeMaker(options, function(err) {
//     if(e) throw new Error(err)
//     console.log('Image saved: ' + options.outfile)
// });

// Create a bot that uses 'polling' to fetch new updates
const bot = new TelegramBot(token, {polling: true,});

const {createUser, getUser, userFinishedTheirThesis, reviewDateUpdate} = require("./database");

bot.onText(/\/cuandoLaTesis/, (msg, match) => {
    // 'msg' is the received Message from Telegram
    // 'match' is the result of executing the regexp above on the text content
    // of the message


    console.log(msg.from.id);
    console.log(msg.chat.id);
});

bot.onText(/\/cuandoLaRevision/, (msg, match) => {
    // 'msg' is the received Message from Telegram
    // 'match' is the result of executing the regexp above on the text content
    // of the message

    // Save chat Id
    const chatId = msg.chat.id;
    const userId = msg.from.id;

    getUser(userId).then(res => {
        // We need to create a new user
        if(res.length === 0) {
            createUser(userId, msg.from.username).then(res => {
                bot.sendMessage(chatId, "Termina la tesis primero 👀.").then(() => {});
            }).catch(err => console.log(err));
        } else {
            let date = new Date(res[0].rt_date);
            let now = new Date();
            date = new Date(date.setMonth(date.getMonth()+1));

            if(date.getMonth() === 1) {
                date = new Date(date.setMonth(date.getMonth()+1));
            }

            if (!res[0].ft_date) {
                bot.sendMessage(chatId, "Pa que preguntai weas si no hay terminado la tesis.").then(() => {});
            } else {
                if (!res[0].rt_date) {
                    bot.sendMessage(chatId, "Entrega el borrador, como tan pajero.").then(() => {});
                } else {
                    if (date.getTime() > now.getTime()) {
                        const diffTime = Math.abs(date - now);
                        const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));
                        bot.sendMessage(chatId, "Wait prrito todavía te faltan " + diffDays + " días.").then(() => {});
                    } else {

                        const diffTime = Math.abs(now - date);
                        const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));
                        const diffHrs = Math.floor((diffTime % 86400000) / 3600000); // hours
                        const diffMinutes = Math.round(((diffTime % 86400000) % 3600000) / 60000); // minutes

                        memeGenerator.generateMeme({
                            // you can use either topText or bottomText
                            // or both of them at the same time
                            topText:  diffDays + " DÍAS " + ", " + diffHrs + " HORAS, " + parseInt(Math.floor(Math.random() * 90) + 2) + " GRADOS, INCLINACIÓN " + diffMinutes + " MINUTOS",
                            bottomText: 'NO HAY REVISIÓN',
                            url: 'https://i.imgflip.com/346hvl.png'
                        }).then((data) => {
                            bot.sendPhoto(chatId,  data).then(() => {});
                        });
                    }
                }
            }
        }
    }).catch(err => { console.log(err);});
});

bot.onText(/\/cuandoElBorrador/, (msg, match) => {
    // 'msg' is the received Message from Telegram
    // 'match' is the result of executing the regexp above on the text content
    // of the message

    // Save chat Id
    const chatId = msg.chat.id;
    const userId = msg.from.id;

    getUser(userId).then(res => {
        // We need to create a new user
        if(res.length === 0) {
            createUser(userId, msg.from.username).then(res => {
                bot.sendMessage(chatId, "Termina la tesis primero 👀.").then(() => {});
            }).catch(err => console.log(err));
        } else {
            let date = new Date(res[0].ft_date);

            if (res[0].ft_date) {
                let now = new Date();
                date = new Date(date.setMonth(date.getMonth()+1));

                if (date.getTime() > now.getTime()) {
                    const diffTime = Math.abs(date - now);
                    const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));
                    bot.sendMessage(chatId, "Apurate m3n te quedan " + diffDays + " días.").then(() => {});
                } else {
                    bot.sendMessage(chatId, "GG m3n anda pedir más plazo.").then(() => {});
                }
            } else {
                bot.sendMessage(chatId, "Termina la tesis primero 👀.").then(() => {});
            }
        }
    }).catch(err => { console.log(err);});
});

bot.onText(/\/entregueElBorrador/, (msg, match) => {
    // 'msg' is the received Message from Telegram
    // 'match' is the result of executing the regexp above on the text content
    // of the message

    // Get message parameters.
    const array = match.input.split(' ');

    const chatId = msg.chat.id;
    const userId = msg.from.id;

    let date = new Date().toISOString().substr(0,10);

    // If the user enters a finish date then it will use it.
    if(array.length > 1) {

        // Parse given date.
        let possibleDate = Date.parse(array[1]);

        // If the given date is valid, then is stored as the finished date.
        if(!isNaN(possibleDate)) {
            date = new Date(possibleDate).toISOString().substr(0,10);
        }
    }

    getUser(userId).then(res => {
        // We need to create a new user
        if(res.length === 0) {
            bot.sendMessage(chatId, "Termina la tesis primero po weon >=(.").then(() => {});
        } else {
            reviewDateUpdate(userId, date).then(() => {
                bot.sendMessage(chatId, "Buena prro entregaste el borrador ahora a esperar :) /Congratulations").then(() => {});
            }).catch(err => console.log(err));
        }
    }).catch(err => { console.log(err);});
});

bot.onText(/\/termineLaTesisCTM/, (msg, match) => {
    // 'msg' is the received Message from Telegram
    // 'match' is the result of executing the regexp above on the text content
    // of the message

    // Get message parameters.
    const array = match.input.split(' ');

    // Save chat Id
    const chatId = msg.chat.id;

    // Default finish thesis date is now.
    let date = new Date().toISOString().substr(0,10);

    // If the user enters a finish date then it will use it.
    if(array.length > 1) {

        // Parse given date.
        let possibleDate = Date.parse(array[1]);

        // If the given date is valid, then is stored as the finished date.
        if(!isNaN(possibleDate)) {
            date = new Date(possibleDate).toISOString().substr(0,10);
        }
    }

    const userId = msg.from.id;

    getUser(userId).then(res => {
        // We need to create a new user
        if(res.length === 0) {
            createUser(userId, msg.from.username).then(res => {
                userFinishedTheirThesis(userId, date).then(() => {
                    bot.sendMessage(chatId, "Terminaste la tesis =D /Congratulations").then(() => {});
                }).catch(err => console.log(err));
            }).catch(err => console.log(err));
        } else {
            userFinishedTheirThesis(userId, date).then(() => {
                bot.sendMessage(chatId, "Terminaste la tesis =D /Congratulations").then(() => {});
            }).catch(err => console.log(err));
        }
    }).catch(err => { console.log(err);});
});

bot.on("polling_error", (err) => console.log(err));