#!/usr/bin/php
<?php
/*
1. loop through all issues:
2. if issue has stale "label":
2.1. if activity since label was added then remove label
2.2. if still no activity in 7 days then close
3. if issue doesn not has stale "label"
3.1. if no activity in >30 dyas then add "stale" label
*/

// load the config, create the connection and load the repo sepcified on the cmd line args
// we will then have $client and $repo available
require 'setup.php';

//get the stale label or create if not exist
if (!$staleLabel = $repo->getLabelByName('stale')) {
    $staleLabel = $repo->createLabel(['name' => 'stale', 'color' => '#fad8c7']);
}

//define the function to process each issue
$callback = function($issue) use ($staleLabel) {
    $updatedTime=strtotime($issue->updated_at);
    $updateDaysAgo=(time()-$updatedTime)/60/60/24;
    echo "#{$issue->number} - $updateDaysAgo days ago - {$issue->title}\n";
    if($issue->hasLabel($staleLabel)){
        //when was it added?
        $staleTime=null;
        foreach($issue->getComments() as $comment){
            if(substr($comment->body,0,35)=='This issue has been marked as stale'){
                $staleTime=strtotime($comment->created_at);
                $staleDaysAgo=(time()-$staleTime)/60/60/24;
            }
        }
        if(!$staleTime){
            echo "ERROR: cant find stale time\n";
            return;
        }

        //if activity sice added then remove label
        if($updatedTime>$staleTime){
            $issue->removeLabel($staleLabel);
            return;
        }

        //if no activity in 7 days then close
        if($updateDaysAgo>7) {
            $issue->state = 'closed';
            $issue->save();
            $issue->addComment('This issue has been automatically closed due to inactivity.');
            return;
        }
    }elseif($updateDaysAgo>30){ //no stale label and >30 days
        $issue->addLabel($staleLabel);
        $issue->addComment('This issue has been marked as stale due to 30+ days of inactivity. If there is no futrher activity in the next 7 days it will be automatically closed.');
        $issue->save();
        return;
    }
};

//loop through all issues and call the callback
$repo->forIssues($callback);