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#!/usr/bin/node
/* jshint esnext:true */
"use strict";
const Discord = require("discord.js"),
ua = require("universal-analytics"),
api = require("./api"),
strings = require("./strings"),
Promise = require("bluebird"),
Channel = require("async-csp").Channel;
const util = module.exports;
const GOOGLEANALYTICS_ID = process.env.GOOGLEANALYTICS_ID,
REACTION_TIMEOUT = parseInt(process.env.REACTION_TIMEOUT) || 60, // s
IGN_ROTATE_TIMEOUT = parseInt(process.env.IGN_ROTATE_TIMEOUT) || 300,
PREVIEW = process.env.PREVIEW != "false",
ROOTURL = (PREVIEW? "https://preview.vainsocial.com/":"https://vainsocial.com/");
const reactionsPipe = new Channel();
// embed template
module.exports.vainsocialEmbed = (title, link, command) => {
return new Discord.RichEmbed()
.setTitle(title)
.setColor("#55ADD3")
.setURL(ROOTURL + encodeURIComponent(link) + util.track(command))
.setAuthor("VainSocial" + (PREVIEW? " preview":""), ROOTURL + "images/brands/logo-blue.png",
ROOTURL + util.track(command))
.setFooter("VainSocial" + (PREVIEW? " preview":""), ROOTURL + "images/brands/logo-blue.png")
};
// "playing…"
module.exports.rotateGameStatus = (client) => {
(async function rotate() {
const gamers = await api.getGamers(),
idx = Math.floor(Math.random() * (gamers.length - 1)) + 1;
if (PREVIEW) await client.user.setGame(
`?v ${gamers[idx]} | preview.vainsocial.com`);
else await client.user.setGame(
`!v ${gamers[idx]} | vainsocial.com`);
setTimeout(rotate, IGN_ROTATE_TIMEOUT * 1000);
})();
}
// analytics url
module.exports.track = (command) => {
return "?utm_source=discordbot&utm_medium=discord&utm_campaign=" + command;
};
// direct analytics
module.exports.trackAction = (msg, action, ign="") => {
if (GOOGLEANALYTICS_ID == undefined) return;
const user = ua(GOOGLEANALYTICS_ID, msg.author.id,
{ strictCidFormat: false });
user.pageview({
documentPath: action,
documentTitle: ign,
campaignSource: (msg.guild? msg.guild.id : 0),
campaignMedium: (msg.guild? msg.guild.name : "private")
}).send();
};
// return the shortest version of the usage help
// just '?vm'
module.exports.usg = (msg, cmd) => {
return msg.anyUsage(cmd, undefined, null);
};
// reaction -> pipe ->>> consumers
// handle new reaction event
module.exports.onNewReaction = (reaction) => {
if (reaction.users.array().length <= 1) return; // was me TODO
reactionsPipe.put(reaction);
};
// create an iterator that returns promises to await new reactions
// the Promise result is the reaction name
module.exports.awaitReactions = (message, emoji, timeout=REACTION_TIMEOUT) => {
const pipeOut = new Channel();
let reactions = [];
// stop listening after timeout
setTimeout(() => {
pipeOut.close();
Promise.map(reactions, (r) => r.remove());
}, timeout*1000);
// async in background
Promise.each(emoji, async (em) =>
reactions.push(await message.react(em)));
let reaction;
reactionsPipe.pipe(pipeOut);
return { next: async function() {
do {
reaction = await pipeOut.take();
if (reaction == Channel.DONE) return undefined;
} while (reaction.message.id != message.id ||
emoji.indexOf(reaction.emoji.name) == -1);
return reaction.emoji.name;
} }
};
// opts: object with key=emoji, value=func
module.exports.reactionButtons = async (msg, opts) => {
if (msg.reactions.size > 0) return; // already added
const reactionWaiter = util.awaitReactions(msg, Object.keys(opts));
while (true) {
const rmoji = await reactionWaiter.next();
if (rmoji == undefined) break; // timeout
if (opts[rmoji]) await opts[rmoji]();
}
}
// respond or say text or embed
module.exports.respond = async (msg, data, response) => {
if (response == undefined) {
if (typeof data === "string") response = await msg.say(data);
else response = await msg.embed(data);
} else {
if (typeof data === "string") {
if (data != response.content) response = await response.edit(data);
} else {
if (response.embeds.length == 0 ||
new Date(response.embeds[0].createdTimestamp).getTime()
!= data.timestamp.getTime()) {
// TODO how2 edit embed properly?!
response = await msg.editResponse(response, {
type: "plain",
content: "",
options: { embed: data }
});
}
}
}
return response;
}
// array split generator
module.exports.paginate = function* chunks(arr, pagesize) {
for (let c=0, len=arr.length; c<len; c+=pagesize)
yield arr.slice(c, c+pagesize);
}
// return ign, or associated ign, or undefined
module.exports.ignForUser = async (name, user_token) => {
// "?" is not accepted as user input, but the default for empty args
if (name != "?") return name;
return await api.getUser(user_token);
}
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