<?php

$json = json_decode(file_get_contents('php://input'), true);

$excluded_djs = [
    "alrs",
    "cat",
    "dctrud",
    "epoch",
    "vivi",
    "ten_forward"
];

if ($json["live"]["is_live"]) {
    // start recording
    $streamer = $json["live"]["streamer_name"];

    if (!in_array($streamer, $excluded_djs)) {
        $current_pid = intval(file_get_contents("ffmpeg.pid"));
        // posix_kill with 0 signal tells you if the process is running
        if ($current_pid != "" && posix_kill($current_pid, 0)) die();

        $timestamp = date("Y-m-d\TH_i_s");
        if (!is_dir(__DIR__."/../$streamer")) {
	    mkdir(__DIR__."/../$streamer");
	    copy(__DIR__."/../djindex.php", __DIR__."/../$streamer/index.php");
        }

        $standard_stream = "https://radio.tildeverse.org/radio/8000/radio.ogg";
        $testing_stream = "https://radio.tildeverse.org/radio/8010/radio.mp3";
        $metadata = "-metadata title=\"tilderadio archive - $timestamp\" -metadata artist=\"$streamer\"";
        $cmd = "/usr/bin/ffmpeg -i $standard_stream $metadata ../$streamer/tilderadio-$streamer-$timestamp.mp3 >out.log 2>&1 & echo $!";
        $pid = exec($cmd);

        echo $pid;
        file_put_contents("ffmpeg.pid", $pid);
    }
} else {
    // stop recording
    $pid = file_get_contents("ffmpeg.pid");
    if ($pid != "" && posix_kill(intval($pid), 0)) {
	posix_kill(intval($pid), 2);
        file_put_contents("ffmpeg.pid", "");
    }
}