Files
jugement_majoritaire/code/parse_sample.php
2025-08-20 16:49:41 +02:00

155 lines
4.0 KiB
PHP

#!/bin/env php
<?php
if (count($argv) > 1) {
$poll_file=$argv[1];
}
else {
print('missing file argument');
exit(1);
}
$verbose=False;
# $poll_fd=fopen($poll_file,'r');
$poll_json=file_get_contents($poll_file);
$poll=json_decode($poll_json,True);
if ($verbose) {
print($poll_json);
print('=== json ===');
var_dump($poll);
}
$voters=$poll['voters']['count'];
$candidates=$poll['candidates'];
$nombre_candidates=count($candidates);
# l'ordre des mentions est de la meilleure à la pire (reject)
$nom_mentions=$poll['mentions'];
$mentions=count($nom_mentions);
$default_mention=$mentions-1;
$votes=$poll["votation"]["votes"];
if ($verbose) {
print("candidates\n");
var_dump($candidates);
print("votes:\n");
var_dump($votes);
}
$warnings=[];
$default_vote=[];
foreach ($candidates as $candidat => $nom_candidat ) {
$default_vote[$candidat]=$default_mention;
}
$collect=[];
foreach ($votes as $vote) {
# missing candidat in vote is the worts one
foreach ($candidates as $candidat => $nom_candidat ) {
if (! array_key_exists($candidat,$vote)) {
$vote[$candidat]=$default_mention;
}
}
foreach ( $vote as $candidat => $mention ) {
if ($mention > $default_mention or $mention < 0) {
$mention = $default_mention;
array_push($warnings,"index de mention invalide, soit la liste des mentions est erronnée soit la mention dans le vote est erronée");
}
if ( array_key_exists($candidat,$collect)) {
if ( array_key_exists($mention,$collect[$candidat])) {
$collect[$candidat][$mention]=$collect[$candidat][$mention]+1;
}
else {
$collect[$candidat][$mention]=1;
}
}
else {
$collect[$candidat]=[$mention => 1];
}
}
}
if ($verbose) {
print("collect:\n");
print(json_encode($collect));
}
$voter_median_check= ($voters % 2 == 0) ? intdiv($voters,2) : intdiv(($voters-1),2) + 1;
$voter_median=intdiv($voters, 2) + $voters % 2;
if ( $voter_median_check != $voter_median ) {
print('[ERROR] le nombre median de voters (' . $voter_median_check . '/' . $voter_median . ') semble erroné. contactez le developpeur de ce code.');
}
$merit=[];
$mention_mediane=[];
$merit_pourcent=[];
# cumul : du meilleur au pire
# range_mentions = range(count(mentions))
# cumul du pire au meilleur
$range_mentions = $mentions;
foreach ($candidates as $candidat => $nom_candidat) {
$vote=$collect[$candidat];
$cumul=0;
for ($i=0; $i < $range_mentions; $i ++) {
$m[$i]=0;
$pourcent[$i]=0;
}
$mention_m=null;
for ($mention=$range_mentions -1; $mention >=0; $mention --) {
if ( array_key_exists($mention,$vote) ) {
$cumul=$cumul+$vote[$mention];
$pourcent[$mention]= ( 100 * $vote[$mention] ) / $voters;
}
if ($cumul >= $voter_median and $mention_m == null ) {
$mention_m=$mention;
}
$m[$mention]=$cumul;
}
if ($cumul < $voters) {
print("[ERROR] votes cumulated " . $cumul . " should match voters. Contact this code developer.");
}
$mention_mediane[$candidat]=$mention_m;
$merit[$candidat]=$m;
$merit_pourcent[$candidat]=$pourcent;
}
if ($verbose) {
print("\nmerit:\n");
print(json_encode($merit));
print("\nmention_mediane:\n");
print(json_encode($mention_mediane));
}
# les gagnants sont ceux qui ont la mention mediane minimale ( la meilleure )
$found=[];
for ($mention = 0; $mention < $mentions; $mention ++) {
foreach ($mention_mediane as $candidat => $merit_median)
if ($merit_median == $mention) {
$item=[];
$item[$candidat]=$candidates[$candidat];
array_push($found,$item);
}
if (count($found) > 0) {
break;
}
}
if ($verbose) {
print($found);
print($nom_mentions[$mention]);
}
$result = ['result'=> ['mention'=>$nom_mentions[$mention],'candidates' => $found],'merit' => $merit,'profil' => $merit_pourcent,"warnings" => $warnings];
print(json_encode($result));
?>