index.js

// A temporary solution to the feature request here:
//   http://support.screeps.com/hc/en-us/community/posts/115000032045-Request-Ranking-by-GCL

var https = require('https');
var _ = require('lodash');

var min_gcl = 0;
var max_gcl = 3;
var interval = 1440; // 8 => 1hour, 180 => 24hour, 1440 => 7days
var results_per_page = 10; // Must be 10? API gives error with other values
var max_ranking = 500; // players with rank higher than this won't be included

var result = [];
var active_responses = 0;
var pages = [];


function onResponseBegin() {
    active_responses++;
    //console.log('>> response '+active_responses);
    process.stdout.write('+');
}


function onResponseEnd() {
    active_responses--;
    //console.log('<< response '+active_responses);
    process.stdout.write('-');
    if (active_responses == 0) {
        if (pages.length) {
            //console.log('-- callback '+pages.length);
            process.stdout.write('X');
            let callback = pages.shift();
            callback();
        }
        else {
            endReport();
        }
    }
}


function endReport() {
    process.stdout.write('\n');
    let sorted = _.orderBy(result, ['rank']);
    _.forEach(sorted, row => console.log(JSON.stringify(row)));
}


function getUserInfo(userId, stats) {
    //console.log(`getUserInfo(${userId})`);
    var query = '/api/user/find?id=' + userId;
    var options = {
        hostname: 'screeps.com',
        port: 443,
        path: query,
        method: 'GET',
        headers: {
            'Content-Type': 'application/json; charset=utf-8',
        },
    };

    var data = '';
    onResponseBegin();

    https.request(options, function(response) {
        response.on('data', function (chunk) {
            data += chunk;
        });
        response.on('end', function() {
            //console.log(JSON.stringify(JSON.parse(data),null,4));
            var info = JSON.parse(data),
                gcl = Math.floor(Math.pow(info.user.gcl/1000000,1/2.4))+1;
            if (gcl >= min_gcl && gcl <= max_gcl) {
                result.push(_.merge({
                    username: info.user.username,
                    gclLevel: gcl,
                    gcl: info.user.gcl,
                }, stats));
            }
            onResponseEnd();
        });
    }).end();
}


function getUser(userId, interval, extra) {
    //console.log(`getUser(${userId}) `+JSON.stringify(extra));
    var query = '/api/user/stats?id=' + userId + '&interval=' + interval;
    var options = {
        hostname: 'screeps.com',
        port: 443,
        path: query,
        method: 'GET',
        headers: {
            'Content-Type': 'application/json; charset=utf-8',
        },
    };

    var data = '';
    onResponseBegin();

    https.request(options, function(response) {
        response.on('data', function (chunk) {
            data += chunk;
        });
        response.on('end', function() {
            //console.log(JSON.stringify(JSON.parse(data),null,4));
            var stats = JSON.parse(data).stats;
            getUserInfo(userId, _.merge(extra, stats));
            onResponseEnd();
        })
    }).end();
}


function getBoard(offset, interval, maxOffset) {
    var query = '/api/leaderboard/list?limit='+ results_per_page +'&mode=world&offset=' + offset + '&season=2016-12';
    var options = {
        hostname: 'screeps.com',
        port: 443,
        path: query,
        method: 'GET',
        headers: {
            'Content-Type': 'application/json; charset=utf-8',
        },
    };

    var data = '';
    onResponseBegin();
    if (offset < maxOffset) {
        pages.push(_.bind(getBoard, null, offset + results_per_page, interval, maxOffset));
    }

    https.request(options, function(response) {
        response.on('data', function (chunk) {
            data += chunk;
        });
        response.on('end', function() {
            //console.log(JSON.stringify(JSON.parse(data),null,4));
            var users = JSON.parse(data).users,
                userIds = _.keys(users);
            for (let i = 0, n = userIds.length; i < n; i++) {
                getUser(users[userIds[i]]._id, interval, {rank: offset+i});
            }
            onResponseEnd();
        });
    }).end();
}


getBoard(0, interval, max_ranking);