<?php

require_once 'vendor/autoload.php';


$sql = mysqli_connect('mysql', 'root', 'example', 'dragon_fire');

function process_post_data($post_data) {
    if($post_data == null) {
        $post_data = [
            "found" => false
        ];
    }
    else {
        $post_data["found"] = true;
        $post_data["post_metadata"] = json_decode($post_data["post_metadata"]);
    }

    return $post_data;
}

function get_post_by_path($path) {
    global $sql;

    $path = chop($path, '/');

    $qry = "SELECT * FROM posts WHERE post_path = ?";

    $stmt = $sql->prepare($qry);
    $stmt->bind_param("s", $path);
    $stmt->execute();
    
    $post_data = $stmt->get_result()->fetch_assoc();

    return process_post_data($post_data);
}

function get_subposts($path) {
    global $sql;

    $path = chop($path, '/');

    $path_depth = substr_count($path, "/");

    $qry = "SELECT post_path, post_metadata
        FROM posts 
        WHERE (post_path LIKE CONCAT(?,'/%')) 
            AND post_path_depth = ?
            ORDER BY post_create_time DESC
            LIMIT 10";

    $stmt = $sql->prepare($qry);
    $stmt->bind_param("si", $path, $path_depth);
    $stmt->execute();
    
    $post_data = $stmt->get_result()->fetch_all(MYSQLI_ASSOC);

    $post_data = array_map('process_post_data', $post_data);

    return $post_data; 
}

//if (!$sql)
// {
//    echo 'Connection failed<br>';
//    echo 'Error number: ' . mysqli_connect_errno() . '<br>';
//    echo 'Error message: ' . mysqli_connect_error() . '<br>';
//    die();
// }

$loader = new \Twig\Loader\FilesystemLoader(['./templates', './user_content']);

$twig = new \Twig\Environment($loader,['debug' => true]);
$twig->addExtension(new Twig\Extra\Markdown\MarkdownExtension());

use Twig\Extra\Markdown\DefaultMarkdown;
use Twig\Extra\Markdown\MarkdownRuntime;
use Twig\RuntimeLoader\RuntimeLoaderInterface;

$twig->addRuntimeLoader(new class implements RuntimeLoaderInterface {
    public function load($class) {
        if (MarkdownRuntime::class === $class) {
            return new MarkdownRuntime(new DefaultMarkdown());
        }
    }
});

if($_SERVER['REQUEST_URI'] == '/') {
    echo $twig->render('root.html');
} elseif(preg_match('/^\/api\/posts(.*)$/', $_SERVER['REQUEST_URI'], $match)) {

    header('Content-Type: application/json');
    echo json_encode(get_post_by_path($match[1]));

} elseif(preg_match('/^\/api\/subposts(.*)$/', $_SERVER['REQUEST_URI'], $match)) {

    header('Content-Type: application/json');
    echo json_encode(get_subposts($match[1]));

} elseif(true) {
    $post = get_post_by_path($_SERVER['REQUEST_URI']);

    echo $twig->render('about.html', [ 
        "post" => $post,
        "subposts" => get_subposts($_SERVER['REQUEST_URI'])
    ]);

} elseif(preg_match('/^\/about(.html)?$/', $_SERVER['REQUEST_URI'])) {
	echo $twig->render('about.html');
} elseif(preg_match('/^\/gallery\/([^\?]+)/', $_SERVER['REQUEST_URI'])) {
    echo $twig->render('/gallery/gallery_entry.html', [
        'image_url' => '/static/banner/0.png',
        'image_title' => 'Test!',
        'image_desc' => 'A soft piece made by a dear friend',
        'artist_name' => 'Doggonaut',
        'artist_src_link' => 'https://twitter.com/doggonaut'
    ]);
} else {
	echo $twig->render('rrror.html',[
        "error_code" => '404 Hoard not found!',
		"error_description" => "Well, we searched 
            far and wide for `" . $_SERVER['REQUEST_URI'] . "` but 
            somehow it must have gotten lost... Sorry!"
	]);	
}

?>