<?php
include 'apikey.php';

if (empty($apikey)) {
    /* If we don't have the API key, assume we're developing. Pull data from live version of this file */
    $context = stream_context_create([
        "http" => [
            "method" => "GET",
        ]
    ]);
    $schedule = json_decode(file_get_contents("https://tilderadio.org/schedule/schedule.php?json=yes", false, $context), true);
} else {
    $context = stream_context_create([
        "http" => [
          "method" => "GET",
          "header" => "X-API-Key: $apikey\r\n"
        ]
    ]);

    // allow ics.php to overwrite $from and $to
    if (!isset($from, $to)) {
        $from = gmdate("Y-m-d\TH:i:s\Z", strtotime("today"));
        $to   = gmdate("Y-m-d\TH:i:s\Z", strtotime("today + 8 days"));
    }

    $schedule = json_decode(
        file_get_contents(
            "https://azuracast.tilderadio.org/api/station/1/streamers/schedule?start=$from&end=$to",
            false,
            $context
        ),
        true
    );
}

usort($schedule, function ($a, $b) {
    return $a["start"] <=> $b["start"];
});

if (isset($_GET["json"]) && $_GET["json"] === "yes")
    echo json_encode($schedule);

function formatdate($date) {
    return gmdate("D M d H:i", strtotime($date));
}