Export all BitBucket issues to json file

DownloadBitbucketIssues.php

<?php

/**
 * EXPORT ALL BITBUCKET ISSUES TO JSON FILE
 * 
 * I couldn't figure out how to use https://github.com/GrahamCampbell/Laravel-Bitbucket/ so instead am using https://github.com/BitbucketAPI/Client/ directly so that I can export (download) all of my issues from all of my Bitbucket repositories' issue trackers.
 * 
 * Here are the steps that make it work:
 * 
 * 1. Visit https://bitbucket.org/account/user/{your_username}/app-passwords
 * 2. Click "Create app password", and enable "Read" access to all of the following: "Account", "Issues", "Projects", "Repositories".
 *     When I tried granting access to just Issues, I got this misleading error: Symfony\Component\Debug\Exception\FatalThrowableError  : strtok() expects parameter 1 to be string, array given
 * 3. In your .env file, paste the username and password like this:
 * 
 BITBUCKET_USERNAME=johndoe
 BITBUCKET_PASSWORD=mmnb54m5nb4mn5b64
 * 
 * 4. Create a config/bitbucket.php file that has this:
 * 
 * return [
    'username' => env('BITBUCKET_USERNAME'),
    'password' => env('BITBUCKET_PASSWORD'), //You will visit https://bitbucket.org/account/user/{your_username}/app-passwords and then paste into your .env file
    ];
 * 
 * 5. Run `composer require bitbucket/client`
 * 6. Now you can use a function like what I wrote for getJsonOfAllIssues() below.
 * 
 */

namespace App\Console\Commands;

use Bitbucket\Client;
use Illuminate\Console\Command;
use Storage;

class DownloadBitbucketIssues extends Command {

    const FILENAME = 'issues.json';

    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'downloadBitbucketIssues';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Use the Bitbucket API to download all the issues for backup purposes.';

    public function __construct() {
        parent::__construct();
    }

    public function handle() {
        $issuesAcrossAllRepos = $this->getJsonOfAllIssues();
        Storage::disk('local')->put(self::FILENAME, json_encode($issuesAcrossAllRepos));
        $this->info('Saved json of all issues to file: ' . self::FILENAME);
        //TODO: save file to Amazon S3 too (maybe using https://docs.spatie.be/laravel-backup/v5/introduction)
    }

    /**
     * 
     * @return string
     */
    public function getJsonOfAllIssues() {
        $username = config('bitbucket.username');
        $c = new Client();
        $c->authenticate(Client::AUTH_HTTP_PASSWORD, $username, config('bitbucket.password'));
        $reposResult = $c->repositories()->users($username)->list(['pagelen' => 100]); //Any account with more than 100 repos will need to edit this code to use pagination instead.
        $repoNames = [];
        foreach ($reposResult['values'] as $repoDetails) {
            $repoNames[] = $repoDetails['name'];
        }
        $this->info('Found these repos and will now look to download their issues: ' . json_encode($repoNames));
        $namesOfReposWithIssueTracker = [];
        $issueCounts = [];
        foreach ($reposResult['values'] as $repoDetails) {
            $links = $repoDetails['links'];
            if (isset($links['issues'])) {
                $namesOfReposWithIssueTracker[] = $repoDetails['name'];
                $issueCounts[$repoDetails['name']] = 0;
            }
        }
        $issuesAcrossAllRepos = [];
        foreach ($namesOfReposWithIssueTracker as $repoName) {
            $issuesForThisRepo = [];
            $page = 1;
            do {
                $resultsForPage = $c->repositories()->users($username)->issues($repoName)->list(['pagelen' => 100, 'page' => $page]); //100 is max: https://developer.atlassian.com/bitbucket/api/2/reference/resource/repositories/%7Busername%7D/%7Brepo_slug%7D/issues
                $numResultsOnThisPage = count($resultsForPage['values']);
                $this->info($repoName . ' page ' . $page . ' has this many results: ' . $numResultsOnThisPage);
                $issuesForThisRepo = array_merge($issuesForThisRepo, $resultsForPage['values']);
                $issueCounts[$repoName] += $numResultsOnThisPage;
                $page++;
            } while (isset($resultsForPage['next']));
            $issuesAcrossAllRepos[$repoName] = $issuesForThisRepo;
        }
        $this->info('Number of issues per repo: ' . json_encode($issueCounts));
        return $issuesAcrossAllRepos;
    }

}