<?php
include 'helpers.php';
$nav = parseCSVFile('nav.txt', [0 => 'id', 2 => 'name']);
$cont = parseCSVFile('content.txt', [1 => 'title', 2 => 'body', 3 => 'type'], 0);

if (isset($_GET['page']) && isset($cont[$_GET['page']])) {
    $filename = 'views/'.$_GET['page'].'.txt';
    if (file_exists($filename)) {
        $pageViews = file_get_contents($filename);
    } else {
        $pageViews = 0;
    }
    file_put_contents($filename, $pageViews + 1);
    echo $pageViews + 1;
}
$views = 0;
$files = scandir('views');
foreach ($files as $v) {
    if ($v == '.' || $v == '..') {
        continue;
    }
    $filename = 'views/'.$v;
    $views += file_get_contents($filename);
}
?>
<ul>
    <?php foreach ($nav as $item): ?>
    <li><a href="index.php?page=<?=$item['id']?>"><?=$item['name']?></a></li>
    <?php endforeach;?>
</ul>
<?php
if (isset($_GET['page']) && isset($cont[$_GET['page']])) {
    $key = $_GET['page'];
    echo '<h1>'.$cont[$key]['title'].'</h1>';
    echo $cont[$key]['body'].'<br>';
    echo $views;
}
?>