const fetch = require("node-fetch");
var mysql = require('mysql');
const TelegramBot = require('node-telegram-bot-api');

const tgInfo = require('./telegram-credentials');
if (!tgInfo.token) {
    console.error("ERR: credentials not set.")
    return;
}
var connection = mysql.createPool({
    host: 'localhost',
    user: 'simcompanies',
    password: '',
    database: 'simcompanies'
});

function twoDigits(d) {
    if (0 <= d && d < 10) return "0" + d.toString();
    if (-10 < d && d < 0) return "-0" + (-1 * d).toString();
    return d.toString();
}
Date.prototype.toMysqlFormat = function () {
    return this.getFullYear() + "-" + twoDigits(1 + this.getMonth()) + "-" + twoDigits(this.getDate()) + " " + twoDigits(this.getHours()) + ":" + twoDigits(this.getMinutes()) + ":" + twoDigits(this.getSeconds());
};

const init = async () => {
    const resourceAPI = "https://www.simcompanies.com/api/v3/en/encyclopedia/resources/";
    var resourceList = await fetch(resourceAPI);
    resourceList = await resourceList.json();

    const tgBot = new TelegramBot(tgInfo.token, { polling: true });

    tgBot.onText(/\/resource (.+)/, (msg, match) => {
        const chatId = msg.chat.id;
        var resource = match[1];
        resource = resourceList.find(function (elem) {
            return elem["name"].toUpperCase() === resource.toUpperCase();
        });
        if (!resource)
            return tgBot.sendMessage(chatId, `DASH - Simcompany bot made by OTB\nThe resource you are looking for could not be found. Please make sure, you spelled the name correctly. eg. "Mining Research."`);

        tgBot.sendMessage(chatId, `DASH - Simcompany bot made by OTB\nI see you are looking for some information about ${resource["name"]}.\nPlease tell me which quality you are looking for:`, {
            reply_markup: {
                inline_keyboard: [[
                    {
                        text: 'q0',
                        callback_data: resource["db_letter"] + '|0|' + resource["name"]
                    },
                    {
                        text: 'q1',
                        callback_data: resource["db_letter"] + '|1|' + resource["name"]
                    }], [
                    {
                        text: 'q2',
                        callback_data: resource["db_letter"] + '|2|' + resource["name"]
                    },
                    {
                        text: 'q3',
                        callback_data: resource["db_letter"] + '|3|' + resource["name"]
                    }], [
                    {
                        text: 'q4',
                        callback_data: resource["db_letter"] + '|4|' + resource["name"]
                    },
                    {
                        text: 'q5',
                        callback_data: resource["db_letter"] + '|5|' + resource["name"]
                    }], [
                    {
                        text: 'q6',
                        callback_data: resource["db_letter"] + '|6|' + resource["name"]
                    },
                    {
                        text: 'q7',
                        callback_data: resource["db_letter"] + '|7|' + resource["name"]
                    },
                ]]
            }
        });
    });


    tgBot.on("callback_query", (data) => {
        const msgData = data.data.split("|");
        var dayend = new Date().toMysqlFormat();
        var daybegin = new Date();
        daybegin.setDate(daybegin.getDate() - 1);
        daybegin = daybegin.toISOString().slice(0, 19).replace('T', ' ');

        const querystring = `SELECT AVG(price) as avg, MIN(price) as min, MAX(price) as max FROM marketv2 WHERE kind = ${mysql.escape(msgData[0])} AND time > "${daybegin}" AND time < "${dayend}" AND quality = ${mysql.escape(msgData[1])} GROUP BY quality`;

        connection.query(querystring, function (error, results, fields) {
            if (error) {
                console.error(error);
                return tgBot.sendMessage(data.message.chat.id, "ERR: sorry, I had trouble querying the database.")
            }
            if (!results[0]) {
                return tgBot.sendMessage(data.message.chat.id, "WRN: sorry, I didn't find any data matching your request.")
            }
            tgBot.sendMessage(data.message.chat.id, `DASH - Simcompany bot made by OTB\nInformation displayed for ${msgData[2]} q${msgData[1]}\nHighest price (24h): ${results[0]["max"]}\nAverage price (24h): ${results[0]["avg"]}\nLowest price (24h): ${results[0]["min"]}\n`)
        });
    });

}

init();