final-stats.js

import authorsRaw from './authors.js'
import fs from 'fs-extra';
import r from 'ramda';
import assign from 'object-assign';
import moment from 'moment';

const first = arr => arr[0];
const last = arr => arr[arr.length - 1];
const sortBy = field => (a, b) => a[field] - b[field];

let stats = authorsRaw
  .map(author => ({
    username: author.username,
    start: moment(author.start, 'DD MMM YYYY').unix(),
  }))
  .sort((a, b) => a.start - b.start)
  .map((author, i) => ({ username: author.username, index: i+1 }))
  .map((author, i, arr) => {
    var stats = fs.readJsonSync(`./dump/${author.username}-stats.json`);
    author.followers_count = fs.readJsonSync(`./dump/${author.username}-info.json`).followers_count;
    return assign({}, author, stats);
  })
  .map((author, i, arr) => assign({}, author, {
    gainedFollowers: arr[i-1]
      ? author.followers_count - arr[i-1].followers_count
      : author.followers_count
  }));

r.maxBy(r.prop('tweets'), stats).maxTweets = true;
r.maxBy(r.prop('ownTweets'), stats).maxOwnTweets = true;
r.maxBy(r.prop('ownTweetsPercentage'), stats).maxOwnTweetsPercentage = true;
r.maxBy(r.prop('gainedFollowers'), stats).maxGainedFollowers = true;
r.maxBy(r.prop('retweets'), stats).maxRetweets = true;
r.maxBy(r.prop('retweetsPercentage'), stats).maxRetweetsPercentage = true;
r.maxBy(r.prop('replies'), stats).maxReplies = true;
r.maxBy(r.prop('repliesPercentage'), stats).maxRepliesPercentage = true;
r.maxBy(r.prop('favorited'),    stats).maxFavorited = true;
r.maxBy(r.prop('favoritedKpi'), stats).maxFavoritedKpi = true;
r.maxBy(r.prop('retweeted'),    stats).maxRetweeted = true;
r.maxBy(r.prop('retweetedKpi'), stats).maxRetweetedKpi = true;

fs.outputJson(`./final-stats.json`, {stats}, err => console.log(`done`))