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Tippers Leaderboard
Author: foobar23
Description Source Code Launch Bot Current Users
Created by: Foobar23
/*********************************************

<b><u>Tippers Leaderboard</u></b>

<p>Keeps track of all tips and shows a leaderboard of all tippers for the current session. The top 3 can be printed on a fixed interval, after each tip, or when the top 3 has changed.
</p><p>Users can view the full leaderboard using the "!lb" command.</p>
<p><u>These are the settings:</u>
</p><p><b>Print top 3 after tips</b>
</p><p>Whether to print the leaderboard after tips. Choices are:
</p><ul><li><b>always</b>: always print the leaderboard top 3 after tips have been received
<li><b>only if the top 3 changed</b>: only print the top 3 after receiving tips if there has been a change
<li><b>never</b>: don't print the top 3 after tips have been received
</ul><p><b>Print top 3 at least once every (minutes, 0 to disable)</b>
</p><p>Time (in minutes) to automatically print the top 3 if no tips were received that caused the leaderboard to be printed in that time (based on the previous setting).
</p><p>Setting this value to 0 disables this feature.
</p><p><b>Highlight tip leader in chat</b>
</p><p>Set to 'yes' to highlight the current leader.</p>
</p><p><b>Remind tippers who tipped 25 tokens to rate</b>
</p><p>When set to 'yes' any tipper who has tipped 25 tokens or more during this session is asked to rate.</p>

Version history:

3 Aug 2013: v1.0; initial release
3 Aug 2013: v1.1; sorting fixed, added option to run as both an App and Bot
23 Aug 2013: v1.2; more compact notice output, only sending !lb output to requesting user
28 Aug 2013: v1.2.1; only match !lb at the beginning of the input, don't process !lb if it was already handled
28 Dec 2013; v1.3; delay printing of leaderboard until tipping has stopped, only print top 3 if it has changed
30 Dec 2013; v1.4; added settings
31 Dec 2013; v1.4.1; code cleanup
13 Jul 2014; v1.5; added option to ask tippers who tipped over 25 tokens to rate

*********************************************/

var VERSION = '1.5',
    COMMAND_SHOW_LEADERBOARD = '!lb',
    CONFIG_COLOR_LEADER = '#9f9',
    INTERVAL_MULTIPLIER = 60000,
    UPDATE_TIME = 5000,
    RATE_FROM = 25,
    RATE_MESSAGE = ":rate-me",
    RATE_MESSAGE_DELAY = 1500,
    NL = '\n',
    user_total_tips = {},
    user_last_tip_time = {},
    last_top3 = '',
    leader_username,
    update_counter = 0,
    interval_counter = 0,
    silent_room = true;

// settings
cb.settings_choices = [{
    name: 'print_on_tip',
    type: 'choice',
    choice1: 'always',
    choice2: 'only if the top 3 changed',
    choice3: 'never',
    defaultValue: 'only if the top 3 changed',
    label: "Print top 3 after tips"
}, {
    name: 'print_interval',
    type: 'int',
    minValue: 0,
    defaultValue: 10,
    label: "Print top 3 at least once every (minutes, 0 to disable)",
    required: true
}, {
    name: 'highlight',
    type: 'choice',
    choice1: 'yes',
    choice2: 'no',
    defaultValue: 'no',
    label: "Highlight tip leader in chat"
}, {
    name: 'rate',
    type: 'choice',
    choice1: 'yes',
    choice2: 'no',
    defaultValue: 'yes',
    label: "Remind tippers who tipped 25 tokens to rate"
}];

// handlers
cb.onTip(function (tip) {
    handleTip(tip.amount, tip.from_user);
    scheduleUpdate();

    silent_room = false;
});

cb.onMessage(function (msg) {
	// handle user commands
	if ((msg.m.indexOf(COMMAND_SHOW_LEADERBOARD) == 0) && !msg['X-Spam']) {
        sendLeaderboard(true, msg.user);
        msg['X-Spam'] = true;
	}

    // highlight leader
	if ((cb.settings.highlight == 'yes') && (msg.user == leader_username))  {
		msg.background = CONFIG_COLOR_LEADER;
	}

    // schedule interval
    if (update_counter == 0){
        scheduleInterval();
    }

    if (!msg['X-Spam']){
        silent_room = false;
    }

	return msg;
});

// functions
function handleTip(amount, user) {
    if (amount <= 0) return;

    var before = user_total_tips[user] || 0,
        after = user_total_tips[user] = before + amount;

    user_last_tip_time[user] = new Date().valueOf();

    if ((before < RATE_FROM) && (after >= RATE_FROM)){
        cb.setTimeout(function(){
            cb.chatNotice(RATE_MESSAGE, user);
        }, RATE_MESSAGE_DELAY);
    }
}

function sortLeaderboard(){
    var lb = [];

    for (var user in user_total_tips) {
        if (user_total_tips.hasOwnProperty(user)){
            lb.push([user_total_tips[user], -user_last_tip_time[user], user]);
        }
    }

    if (lb.length > 0){
        lb.sort(function(a, b){
            for (var i=0; i < a.length; i++){
                if (a[i] < b[i]){
                    return 1;
                }
                if (a[i] > b[i]){
                    return -1;
                }
            }
            return 0;
        });
        leader_username = lb[0][2];
    }

    return lb;
}

function formatRanking(leaderboard, rank){
    if (rank < leaderboard.length) {
        var p = leaderboard[rank];
        return p[2] + ' (' + p[0] + ' token' + (p[0]!=1 ? 's' : '') + ')';
    }
    else {
        return '--';
    }
}

function getTop3(leaderboard){
    var rank, result='';
    for (rank=0; rank<3; rank++){
        if (rank>0){
            result += '|';
        }
        if (rank < leaderboard.length){
            result += leaderboard[rank][2];
        }
    }
    return result;
}

function sendLeaderboard(force, to_user) {
	var lb = sortLeaderboard(),
        l = to_user ? lb.length : 3,
        out = 'Tippers leaderboard';

    if (!force) {
        var top3 = getTop3(lb);
        if (top3 == last_top3){
            return;
        }
        last_top3 = top3;
    }

    if (l<3) { l=3; }

    if (l < lb.length) {
        out += ' top 3 (Type !lb to see the full leaderboard)';
    }
    if (to_user){
        out += ' [v' + VERSION+']';
    }

    for (var rank=0; rank<l; rank++) {
        out += NL + '' + (rank+1) + '. ' + formatRanking(lb, rank);
    }

	cb.chatNotice(out, to_user);

    if (!to_user){
        scheduleInterval();
    }
}

function scheduleUpdate(){
    var print_on_tip = cb.settings.print_on_tip;

    if (print_on_tip != 'never') {
        var counter = ++update_counter;

        cb.setTimeout(function(){
            if (update_counter == counter){
                sendLeaderboard(print_on_tip == 'always');
            }
        }, UPDATE_TIME);
    }
}

function scheduleInterval(){
    var interval = cb.settings.print_interval;

    if (interval > 0) {
        var counter = ++interval_counter;

        cb.setTimeout(function(){
            if (interval_counter == counter){
                sendLeaderboard(!silent_room);
            }
        }, interval*INTERVAL_MULTIPLIER);

        silent_room = true;
    }
}

function init(){

}