Primedice 4 Mass Tip Helper

/*
//  PD4 Tipping Utility
//  Created by Serlite
//
//  Instructions:
//  - Paste code below into console
//  - Tipping controls will appear beneath chat interface
//  - Each line is considered a separate tip; either specify only a username and the base
//    amount will be used, or use the syntax "username value" to specify the tip amount:
//      User1
//      User2
//      User3 0.005
//      User4
*/

loadjQuery();
initializeTipTools();

// Adds jQuery to document if needed
function loadjQuery(){
    if (!window.jQuery){
        var script = document.createElement("SCRIPT");
        script.src = 'https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js';
        script.type = 'text/javascript';
        document.getElementsByTagName("head")[0].appendChild(script);
    }
}

// Creates GUI for tipping utility
function initializeTipTools(){
    // Give time for jQuery to load
    if (!window.jQuery){
        setTimeout(initializeTipTools, 500);
    }
    else{
        jQuery(".chat").append(
            "<div style='padding:20px;flex-shrink:0;font-size:12px;'>"+
                "<p style='padding: 10px 0; font-size: 15px; border-top: 1px solid #EEE;'>Mass Tip Helper</p>"+
                "<textarea id='tip-name-input' style='border:1px solid #cfd8dc; border-radius:3px; width:100%; padding:11px 15px; font-size:12px;' placeholder='example_user_overridden 0.002'></textarea>"+
                "<label for='tip-amount-input' style='margin-top:10px;display:block;'>Base tip amount</label>"+
                "<input id='tip-amount-input' style='border:1px solid #cfd8dc; border-radius:3px; width:100%; padding:11px 15px; font-size:12px;' placeholder='0.00001000 min' type='text' />"+
                "<label for='tip-interval-input' style='margin-top:10px;display:block;'>Tip interval (seconds)</label>"+
                "<input id='tip-interval-input' style='border:1px solid #cfd8dc; border-radius:3px; width:100%; padding:11px 15px; font-size:12px;' placeholder='0' type='text' />"+
                "<label style='float:left;margin-top:21px;'>Private <input id='tip-private' style='vertical-align:middle;' type='checkbox' /></label>"+
                "<button id='tip-button' style='padding:10px 20px 12px; background:#4d5e80; box-shadow:inset 0 -2px 0 rgba(0,0,0,.2); color:#fff; border-radius:3px; font-weight:600; float:right; font-size:13px; margin-top:10px;'>Send Tips</button>"+
            "</div>"
        );

        jQuery("#tip-button").click(queueSendTips);
    }
}

function queueSendTips(){
    var tips = getNameValuePairs();
    var isPrivate = jQuery("#tip-private")[0].checked;
    var tipInterval = parseFloat(jQuery("#tip-interval-input").val());
    tipInterval = isNaN(tipInterval) ? 0 : tipInterval;

    // Early exit if no tips possible
    if (tips.length == 0){
        return;
    }

    if (confirm("You are about to send a total of " + calculateTotalAmount(tips) + " BTC to " + tips.length + " users. Is this correct?")){
        for (var i = 0; i < tips.length; i++){
            // Self-invoking function so tips[i] doesn't fall out of scope for the setTimeout()
            (function(i){
                setTimeout(function(){
                    sendTip(tips[i], isPrivate);
                }, i * tipInterval * 1000);
            })(i);
        }
    }
}

function sendTip(tipObject, isPrivate){
    if (isPrivate){
        tipObject.hide = true;
    }
    try{
        tipObject.amount = Math.ceil(tipObject.amount * 100000000); // I wish we could just express things in actual BTC for the request!

        jQuery.post("https://api.primedice.com/api/tip?access_token=" + localStorage.getItem('token'), tipObject, function(response) {
            if (!response){
                console.log("Failed to tip " + tipObject.username + ": No response from server.");
            }
            else if (!response.user){
                console.log("Failed to tip " + tipObject.username + ": " + response);
            }
        });
    }
    catch(e){
        console.log("Error: " + e);
    }
}

function getNameValuePairs(){
    var baseAmount = jQuery("#tip-amount-input").val();
    var nameValues = jQuery("#tip-name-input").val().split("\n");
    var nameValuePairs = [];

    for (var i = 0; i < nameValues.length; i++){
        // Check for empty input
        if (nameValues[i] == ""){
            continue;
        }

        var valuePair = nameValues[i].split(" ");
        var amountSupplied = valuePair.length > 1;
        var tipAmount = amountSupplied ? valuePair[1] : baseAmount;

        // Some value checking so we don't bother tipping with invalid information
        if (!isNumber(tipAmount)){
            if (!amountSupplied){
                console.log("Invalid amount for " + valuePair[0] + ": No amount specified, and base amount (" + tipAmount + ") is missing/non-numeric.");
            }
            else{
                console.log("Invalid amount for " + valuePair[0] + ": Amount specified (" + tipAmount + ") is non-numeric.");
            }
            continue;
        }

        nameValuePairs.push(
            {
                username: valuePair[0],
                amount: tipAmount
            }
        );
    }

    return nameValuePairs;
}

function calculateTotalAmount(tips){
    var total = 0;
    for (var i = 0; i < tips.length; i++){
        total += Number(tips[i].amount);
    }
    return total.toFixed(8);
}

function isNumber(n) {
  return !isNaN(parseFloat(n)) && isFinite(n);
}