Analyze streamer earnings in Twitch leak

gross.js

import {globby} from "globby"
import fs from "node:fs/promises"
import path from "node:path"
import * as fflate from "fflate"
import csvParse from "csv-parse"
import lodash from "lodash-es"

const twitchPayoutsFolder = "C:/Users/Jaid/Desktop/twitch-payouts/all_revenues"

let allGross = 0
let allRows = 0
let totalGross = 0
const csvFiles = await globby("**/*.gz", {
  cwd: twitchPayoutsFolder,
  stats: true
})
const csvIndex = csvFiles.map(file => {
  return {
    file: file.path,
    size: file.stats.size,
    id: file.path.slice(0, 7)
  }
})
const csvIndexSorted = lodash.sortBy(lodash.uniqBy(lodash.reverse(lodash.sortBy(csvIndex, "size")), "id"), "id")
let i = 0
console.log("Collected " + csvIndexSorted.length + " CSVs")
for (const csvEntry of csvIndexSorted) {
  const file = csvEntry.file
  i++
  const absoluteFile = path.join(twitchPayoutsFolder, file)
  console.log("[" + i + "/" + csvIndexSorted.length + "] Looking at " + csvEntry.file)
  const inputData = await fs.readFile(absoluteFile)
  const decompressedBuffer = fflate.gunzipSync(inputData)
  const csvString = fflate.strFromU8(decompressedBuffer, true)
  csvParse(csvString, (_error, rows) => {
    let currentRow = 0
    for (const row of rows) {
      currentRow++
      if (currentRow === 1) {
        continue
      }
      const [userId, _payoutId, adGross, subGross, bitsGross, developerGross, extensionGross, primeGross, bitsAdGross, fuelGross, revGross] = row
      if (userId !== "45044816") { // MontanaBlack88
   // if (userId !== "65887522") { // Jaidchen
        continue
      }
      const gross = Number(adGross) +  Number(subGross) +  Number(bitsGross) +  Number(developerGross) +  Number(extensionGross) +  Number(primeGross) +  Number(bitsAdGross) +  Number(fuelGross) +  Number(revGross)
      const grossEuro = gross * 0.87
      console.log("-> Found gross: " + gross + " $ (or " + grossEuro + " €)")
      totalGross += grossEuro
      console.log("-> Total gross is now: " + Math.trunc(totalGross) + " €")
    }
    console.log("Checked rows: " + currentRow)
    allRows += currentRow
  })
}