<?php
// Polls Icecast and records track history. Run from cron once a minute; each run polls
// four times, 15 seconds apart:
//   * * * * * php /path/to/rfe/cli/poll_icecast.php

if (PHP_SAPI !== 'cli') {
    http_response_code(403);
    exit;
}

require __DIR__ . '/../includes/db.php';
require __DIR__ . '/../includes/broadcasts.php';

// Skip this run if the previous one is still going
$lock = fopen(sys_get_temp_dir() . '/rfe_poll_icecast.lock', 'c');
if (!flock($lock, LOCK_EX | LOCK_NB)) exit;

for ($i = 0; $i < 4; $i++) {
    if ($i > 0) sleep(15);

    $track = fetchCurrentTrack();
    if ($track === false) continue; // Status API unreachable; don't treat it as the stream ending

    try {
        recordPoll(getDB(), $track);
    } catch (Throwable $e) {
        fwrite(STDERR, date('c') . ' ' . $e->getMessage() . "\n");
    }
}