#!/usr/bin/env node

const fs = require('fs');
const path = require('path');

const ids = [];
const dir = path.resolve(__dirname, process.argv[2]);
for (const f of fs.readdirSync(dir)) {
  const format = path.resolve(dir, f);
  for (const d of fs.readdirSync(format)) {
    const day = path.resolve(format, d);
    for (const file of fs.readdirSync(day)) {
      ids.push(Number(file.slice(file.indexOf('-', 7) + 1, file.indexOf('.', 7))));
    }
  }
}

ids.sort();

const sz = ids.length;
const lo = ids[0];
const hi = ids[sz - 1];
const tot = hi - lo;
const pct = sz / tot;

console.log({lo, hi, sz, tot, pct});