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#!/usr/bin/env node
/* jshint esnext: true */
var amqp = require("amqplib"),
request = require("request-promise"),
express = require("express"),
http = require("http"),
sleep = require("sleep-promise"),
Seq = require("sequelize");
var MADGLORY_TOKEN = process.env.MADGLORY_TOKEN,
RABBITMQ_URI = process.env.RABBITMQ_URI || "amqp://localhost",
DATABASE_URI = process.env.DATABASE_URI || "sqlite:///db.sqlite",
REGIONS = ["na", "eu", "sg", "sa", "ea"];
if (MADGLORY_TOKEN == undefined) throw "Need an API token";
(async () => {
var rabbit = await amqp.connect(RABBITMQ_URI),
seq = new Seq(DATABASE_URI),
model = require("../orm/model")(seq, Seq),
ch = await rabbit.createChannel(),
app = express(),
server = http.Server(app);
server.listen(8880);
app.use(express.static("assets"));
/* API helper */
/* search for player name across all shards */
async function api_playerByAttr(attr, val) {
let finds = [],
filter = "filter[" + attr + "]";
for (let region of REGIONS) {
let options = {
uri: "https://api.dc01.gamelockerapp.com/shards/" + region + "/players",
headers: {
"X-Title-Id": "semc-vainglory",
"Authorization": MADGLORY_TOKEN
},
qs: {},
json: true,
gzip: true
};
options.qs[filter] = val;
retry = true;
while (retry) {
try {
res = await request(options);
finds.push({
"region": res.data[0].attributes.shardId,
"id": res.data[0].id,
"name": res.data[0].attributes.name,
"last_update": res.data[0].attributes.createdAt,
"source": "api"
});
retry = false;
} catch (err) {
if (err.statusCode == 429) {
await sleep(100);
retry = true;
} else if (err.statusCode == 404) {
retry = false;
} else {
console.error(err);
retry = false;
}
// TODO
}
}
}
if (finds.length == 0)
return undefined;
// due to an API bug, many players are also present in NA
// TODO: get history for all regions in case of region transfer
finds.sort((a, b) => { return a.last_update < b.last_update; });
return finds[0];
}
async function api_playerByName(name) {
return await api_playerByAttr("playerNames", name);
}
async function api_playerById(id) {
return await api_playerByAttr("playerIds", id);
}
/* DB helper */
/* find player by id or by name in db */
async function db_playerByAttr(attr, val) {
let condition = {};
condition[attr] = val;
let player = await model.Player.findOne({ where: condition });
if (player != undefined) {
console.log(player);
return {
"name": player.name,
"id": player.api_id,
"region": player.shard_id,
"last_update": player.last_match_created_date,
"source": "db"
};
}
return undefined;
}
async function db_playerByName(name) {
return await db_playerByAttr("name", name);
}
async function db_playerById(id) {
return await db_playerByAttr("api_id", id);
}
/* returns a player by name from db or API */
async function playerByName(name) {
var player = await db_playerByName(name);
if (player != undefined) return player;
console.log("player '" + name + "' not found in db");
player = await api_playerByName(name);
if (player != undefined) return player;
console.log("player '" + name + "' not found in API");
return undefined;
}
/* returns a player by id from db or API */
async function playerById(id) {
var player = await db_playerById(id);
if (player != undefined) return player;
console.log("player with id '" + name + "' not found in db");
player = await api_playerById(id);
if (player != undefined) return player;
console.log("player with id '" + name + "' not found in API");
return undefined;
}
/* returns true if a player has pending jobs */
async function anyJobsRunningFor(con, name, id) {
return false; // TODO
}
async function playerRequestUpdate(name, id) {
if (name == undefined && id == undefined) // fail hard and die
throw "playerRequestUpdate needs either name or id";
let player;
if (id != undefined) // prefer id over name
player = await playerById(id);
else
player = await playerByName(name);
if (player == undefined)
return undefined; // 404
console.log("updating player '%j'", player);
// if last_update is from our db, use it as a start, else get the whole history
if (player.source == "api" || player.last_update == undefined)
player.last_update = new Date(value=0); // forever ago
// add 1s, because createdAt-start <= x <= createdAt-end
// so without the +1s, we'd always get the last_match_created_date match back
player.last_update.setSeconds(player.last_update.getSeconds() + 1);
var timedelta_minutes = ((new Date()) - player.last_update) / 1000 / 60;
if (timedelta_minutes < 30) {
console.log("player '" + player.name + "' update skipped");
return player;
}
var payload = {
"region": player.region,
"params": {
"filter[playerIds]": player.id,
"filter[createdAt-start]": player.last_update.toISOString(),
"filter[gameMode]": "casual,ranked",
"sort": "-createdAt"
}
};
await ch.sendToQueue("grab", new Buffer(JSON.stringify(payload)), { persistent: true });
if (player.source == "db")
await model.Player.update({ last_update: seq.fn("NOW") }, { where: { api_id: player.id } });
return player;
}
async function playerRequestUpdateByName(name) {
return await playerRequestUpdate(name, undefined);
}
async function playerRequestUpdateById(id) {
return await playerRequestUpdate(undefined, id);
}
/* routes */
/* request a grab job */
app.get("/api/player/name/:name", async (req, res) => {
player = await playerRequestUpdateByName(req.params.name);
if (player == undefined) res.sendStatus(404);
else res.json(player);
});
app.get("/api/player/id/:id", async (req, res) => {
player = await playerRequestUpdateById(req.params.id);
if (player == undefined) res.sendStatus(404);
else res.json(player);
});
/* internal monitoring */
app.get("/", async (req, res) => {
res.sendFile(__dirname + "/index.html");
});
//io.emit(name, "done");
})();
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