<?php
/**
 * Feed Refresh Utility
 *
 * This will refresh all known feeds in the database; it is suitable for executing via cron or as a scheduled task
 *
 * @author Daniel J. Summers <daniel@bitbadger.solutions>
 * @license MIT
 */

declare(strict_types=1);

use BitBadger\InspiredByFSharp\Result;
use BitBadger\PDODocument\{DocumentException, Find};
use FeedReaderCentral\{Feed, Table, User};

require __DIR__ . '/../cli-start.php';

cli_title('FEED REFRESH');

if ($argc < 2) display_help();

switch ($argv[1]) {
    case 'all':
        refresh_all();
        break;
    default:
        printfn('Unrecognized option "%s"', $argv[1]);
        display_help();
}


/**
 * Display the options for this utility and exit
 */
function display_help(): never
{
    printfn('Options:');
    printfn(' - all');
    printfn('     Refreshes all feeds');
    exit(0);
}

function refresh_all(): void
{
    try {
        $users = [];
        Feed::retrieveAll()->iter(function (Feed $feed) use (&$users) {
            $result  = Feed::refreshFeed($feed->id, $feed->url);
            $userKey = "$feed->user_id";
            if (!key_exists($userKey, $users)) {
                $users[$userKey] = Find::byId(Table::User, $feed->user_id, User::class)
                    ->getOrDefault(new User(email: 'user-not-found'));
            }
            if ($result->isError()) {
                printfn('ERR (%s) %s', $users[$userKey]->email, $feed->url);
                printfn('         %s', $result->getError());
            } else {
                printfn('OK  (%s) %s', $users[$userKey]->email, $feed->url);
            }
        });
        printfn(PHP_EOL . 'All feeds refreshed');
    } catch (DocumentException $ex) {
        printfn("ERR $ex");
        return;
    }
}