<?php

$repos = ['demo','collective','eiq360','swiftmail','legion','ensembleiq'];
$current_time = time();
$i=0;
$user_commits = [];
$year_months = [];
while($i<7){
  foreach($repos as $repo){
    $year_month = date('Y-m',strtotime("-$i months"));
    $out = [];
    $outputs = [];
    exec("git -C ~/git/$repo shortlog -ns --since='$year_month-01' --before='$year_month-31'", $outputs);
    foreach($outputs as $output){
      $split = explode("\t",$output);
      $commit_count = $split[0];
      $user = $split[1];
      if($user == 'jstapp'){
        $user = 'Josh Stapp';
      }elseif($user == 'Pantheon Automation'){
        $user = 'Pantheon';
      }
      $year_months[$year_month] = 0;
      if(!isset($user_commits[$user]['total'])){
        $user_commits[$user]['total'] = 0;
      }
      $user_commits[$user]['total'] += $commit_count;
      if(!isset($user_commits[$user][$repo])){
        $user_commits[$user][$repo] = 0;
      }
      $user_commits[$user][$repo] += $commit_count;
      if(!isset($user_commits[$user][$year_month])){
        $user_commits[$user][$year_month] = 0;
      }
      $user_commits[$user][$year_month] += $commit_count;
    }
  }
  $i++;
}

$fields = array_merge(array_keys($year_months), $repos, ['total']);
echo "User\t";
foreach($fields as $field){
  echo "\t".substr($field,0,7);
}
echo "\n";
foreach($user_commits as $user => $user_commit) {
  echo $user;
  if(strlen($user) < 8){
    echo "\t";
  }
  foreach ($fields as $field) {
    if (isset($user_commit[$field])) {
      echo "\t$user_commit[$field]";
    }
    else {
      echo "\t0";
    }
  }
  echo "\n";
}