build.sbt

name := "euro_tracker"

version := "0.1"

scalaVersion := "2.12.8"

libraryDependencies += "org.jsoup" % "jsoup" % "1.8.3"

EuroTracker.scala

import java.util.Date

import org.jsoup.Jsoup
import org.jsoup.nodes.Document

import scala.collection.mutable
import scala.io.{AnsiColor, Source}

/**
  * @author Louis Vialar
  */
object EuroTracker {
  private val previousPercent: mutable.Map[String, Double] = mutable.Map()
  private val previousVotes: mutable.Map[String, Int] = mutable.Map()
  private var previousTotal: Int = 0

  def main(args: Array[String]) = {
    while (previousTotal < 100) {
      try {
        loadResults()
        Thread.sleep(1000)
      } catch {
        case _ =>
      }
    }
  }

  def loadResults(): Any = {
    val doc = Jsoup.connect("https://elections.interieur.gouv.fr/europeennes-2019/FE.html").get()
    val elts = doc.select("tr")
    val title = doc.select("h4").first().child(0).text().filter(_.isDigit)
    val time = new Date()

    val nTot = title.toInt
    if (nTot <= previousTotal)
      return

    previousTotal = nTot

    println()
    println("Partis éligibles à " + AnsiColor.CYAN + time + AnsiColor.RESET + " -- " + AnsiColor.RED + title + "% " + AnsiColor.RESET + "des bulletins ")

    elts.forEach(elt => {
      if (elt.child(0).tagName() == "td" && elt.child(0).children().size() > 0 && elt.child(0).child(0).tagName() == "a" && elt.children().size() >= 4) {
        val party = elt.child(0).child(0).text()
        val votes = elt.child(1).text()
        val expressed = elt.child(3).text()

        val votesInt = votes.filter(_.isDigit).toInt
        val expressedDouble = expressed.filter(c => c.isDigit || c == ',').replace(',', '.').toDouble

        if (expressedDouble < 5.0) return

        val percent = previousPercent.put(party, expressedDouble)
          .map(prev => expressedDouble - prev)
          .flatMap(v => {
            if (v > 0) {
              Some(AnsiColor.GREEN + " [+ " + v.formatted("%.2f") + " %]" + AnsiColor.RESET)
            } else if (v < 0) {
              Some(AnsiColor.RED + " [" + v.formatted("%.2f") + " %]" + AnsiColor.RESET)
            } else None
          }).getOrElse("")
        val previous = previousVotes.put(party, votesInt).map(prev => votesInt - prev)
          .flatMap(v => {
            if (v > 0) {
              Some(AnsiColor.GREEN + " [+ " + v + "]" + AnsiColor.RESET)
            } else if (v < 0) {
              Some(AnsiColor.RED + " [" + v + "]" + AnsiColor.RESET)
            } else None
          }).getOrElse("")


        println(s"Parti ${AnsiColor.CYAN}'$party'${AnsiColor.RESET} ==> ${AnsiColor.GREEN}$votes$previous ($expressed %$percent)${AnsiColor.RESET}")
      }
    })
  }
}