<?php
namespace Makai;

use Index\DateTime;
use Index\Routing\Router;
use Index\Routing\RoutePathNotFoundException;
use Index\Routing\RouteMethodNotSupportedException;

require_once __DIR__ . '/../makai.php';

define('FM_NAV', [
    ['title' => 'Home',     'link' => '/'],
    ['title' => 'Projects', 'link' => '/projects'],
    ['title' => 'Contact',  'link' => '/contact'],
]);

define('FM_BGS', [
    '/assets/headers/krk-000.jpg', '/assets/headers/krk-001.jpg', '/assets/headers/krk-002.jpg',
    '/assets/headers/krk-003.jpg', '/assets/headers/krk-004.jpg', '/assets/headers/krk-005.jpg',
    '/assets/headers/krk-006.jpg', '/assets/headers/krk-007.jpg', '/assets/headers/krk-008.jpg',

    '/assets/headers/mkt-000.jpg', '/assets/headers/mkt-001.jpg', '/assets/headers/mkt-002.jpg',
    '/assets/headers/mkt-003.jpg', '/assets/headers/mkt-004.jpg', '/assets/headers/mkt-005.jpg',
    '/assets/headers/mkt-006.jpg', '/assets/headers/mkt-007.jpg', '/assets/headers/mkt-008.jpg',
    '/assets/headers/mkt-009.jpg', '/assets/headers/mkt-010.jpg', '/assets/headers/mkt-011.jpg',
    '/assets/headers/mkt-012.jpg', '/assets/headers/mkt-013.jpg', '/assets/headers/mkt-014.jpg',
    '/assets/headers/mkt-015.jpg', '/assets/headers/mkt-016.jpg', '/assets/headers/mkt-017.jpg',
    '/assets/headers/mkt-018.jpg', '/assets/headers/mkt-019.jpg', '/assets/headers/mkt-020.jpg',
    '/assets/headers/mkt-021.jpg', '/assets/headers/mkt-022.jpg', '/assets/headers/mkt-023.jpg',
    '/assets/headers/mkt-024.jpg', '/assets/headers/mkt-025.jpg', '/assets/headers/mkt-026.jpg',
    '/assets/headers/mkt-027.jpg', '/assets/headers/mkt-028.jpg', '/assets/headers/mkt-029.jpg',
    '/assets/headers/mkt-030.jpg', '/assets/headers/mkt-031.jpg', '/assets/headers/mkt-032.jpg',
    '/assets/headers/mkt-033.jpg', '/assets/headers/mkt-034.jpg', '/assets/headers/mkt-035.jpg',
    '/assets/headers/mkt-036.jpg', '/assets/headers/mkt-037.jpg', '/assets/headers/mkt-038.jpg',
    '/assets/headers/mkt-039.jpg', '/assets/headers/mkt-040.jpg', '/assets/headers/mkt-041.jpg',
    '/assets/headers/mkt-042.jpg', '/assets/headers/mkt-043.jpg', '/assets/headers/mkt-044.jpg',
    '/assets/headers/mkt-045.jpg', '/assets/headers/mkt-046.jpg', '/assets/headers/mkt-047.jpg',
    '/assets/headers/mkt-048.jpg', '/assets/headers/mkt-049.jpg', '/assets/headers/mkt-050.jpg',
    '/assets/headers/mkt-051.jpg', '/assets/headers/mkt-052.jpg', '/assets/headers/mkt-053.jpg',
    '/assets/headers/mkt-054.jpg', '/assets/headers/mkt-055.jpg', '/assets/headers/mkt-056.jpg',
    '/assets/headers/mkt-057.jpg', '/assets/headers/mkt-058.jpg', '/assets/headers/mkt-059.jpg',
    '/assets/headers/mkt-060.jpg', '/assets/headers/mkt-061.jpg', '/assets/headers/mkt-062.jpg',
    '/assets/headers/mkt-063.jpg',
]);

define('FM_FEET', [
    'if it ain\'t broke, i\'ll break it',
]);

define('FM_ERRS' , [
    403 => [
        'code'  => 403,
        'title' => 'Access Denied',
        'image' => '/assets/errors/403.jpg',
        'desc'  => 'You are not supposed to be here.',
    ],
    404 => [
        'code'  => 404,
        'title' => 'Not Found',
        'image' => '/assets/errors/404.jpg',
        'desc'  => 'Whatever you\'re looking for is no longer here, or might not have been here in the first place.',
    ],
    405 => [
        'code'  => 405,
        'title' => 'Method Not Supported',
        'image' => '/assets/errors/405.jpg',
        'desc'  => 'You\'re up to something, aren\'t you?',
    ],
]);

define('FM_DYNLOAD', filter_input(INPUT_SERVER, 'HTTP_ACCEPT') === 'application/x-fdynload+json');

function fm_component(string $_component_name, array $vars = []): string {
    if(FM_DYNLOAD) {
        global $fmComponentVars;
        if(!isset($fmComponentVars))
            $fmComponentVars = [];
        $fmComponentVars[$_component_name] = $vars;
        return '';
    }

    extract($vars);

    ob_start();
    require __DIR__ . '/../components/' . $_component_name . '.php';
    $meow = ob_get_contents();
    ob_clean();

    return $meow;
}

function first_paragraph(string $text, string $delimiter = "\n"): string {
    $index = mb_strpos($text, $delimiter);
    return $index === false ? $text : mb_substr($text, 0, $index);
}

function time_elapsed(int $since, bool $full = false): string {
    $now = new DateTime;
    $since = new DateTime(date('c', $since));
    $diff = $now->diff($since);

    $diff->w = floor($diff->d / 7);
    $diff->d -= $diff->w * 7;

    $string = [
        'y' => 'year',
        'm' => 'month',
        'w' => 'week',
        'd' => 'day',
        'h' => 'hour',
        'i' => 'minute',
        's' => 'second',
    ];

    foreach($string as $key => &$value) {
        if($diff->{$key})
            $value = $diff->{$key} . ' ' . $value . ($diff->{$key} > 1 ? 's' : '');
        else
            unset($string[$key]);
    }

    if(!$full)
        $string = array_slice($string, 0, 1);
    return $string ? implode(', ', $string) . ' ago' : 'just now';
}

function cache_output(string $name, int $lifetime, callable $callable) {
    $path = sys_get_temp_dir() . '/fm-' . $name . '.cache';
    if(!is_file($path) || (filemtime($path) + $lifetime) < time())
        file_put_contents($path, serialize($callable()));
    return unserialize(file_get_contents($path));
}

$reqMethod = (string)filter_input(INPUT_SERVER, 'REQUEST_METHOD');
$reqPath   = '/' . trim(parse_url((string)filter_input(INPUT_SERVER, 'REQUEST_URI'), PHP_URL_PATH), '/');
$reqHead   = false;

if($reqMethod == 'HEAD') {
    $reqMethod = 'GET';
    $reqHead = true;
}

$router = new Router;

$router->get('/error/:code', function(string $code) use ($reqHead) {
    $errorInfo = FM_ERRS[$code ?? 404] ?? FM_ERRS[404];
    http_response_code($errorInfo['code']);

    if(!$reqHead) {
        $body = fm_component('header', ['title' => $errorInfo['title']]);

        $body .= <<<HTML
                <div class="http-error">
                    <h2 class="http-error-head">{$errorInfo['title']}</h2>
                    <img src="{$errorInfo['image']}" alt="{$errorInfo['image']}" class="http-error-image"/>
                    <div class="http-error-desc">{$errorInfo['desc']}</div>
                </div>
HTML;

        $body .= fm_component('footer');

        return $body;
    }
});

function mkiRedirect(string $to): callable {
    return function() use ($to) {
        header('Location: ' . $to);
        return 302;
    };
}

require_once MKI_DIR_PAGES . '/blog.php';
require_once MKI_DIR_PAGES . '/contact.php';
require_once MKI_DIR_PAGES . '/index.php';
require_once MKI_DIR_PAGES . '/projects.php';
require_once MKI_DIR_PAGES . '/ssh.php';

header('X-Powered-By: Makai');

try {
    $handlers = $router->resolve($reqMethod, $reqPath);
} catch(RoutePathNotFoundException $ex) {
    $handlers = $router->resolve('GET', '/error/404');
} catch(RouteMethodNotSupportedException $ex) {
    $handlers = $router->resolve('GET', '/error/405');
}

$result = $handlers->run();

if(is_int($result) && $result >= 400 && $result < 600)
    $result = $router->resolve('GET', "/error/{$result}")->run();

if($result !== null && !is_bool($result)) {
    if(is_int($result)) {
        http_response_code($result);
        header('Content-Type: text/plain; charset=us-ascii');
        echo $result;
    } elseif(is_array($result)
        || $result instanceof \stdClass
        || $result instanceof \JsonSerializable) {
        http_response_code(200);
        header('Content-Type: application/json; charset=utf-8');
        echo json_encode($result);
    } else {
        $result = (string)$result;

        if(strtolower(substr($result, 0, 14)) === '<!doctype html') {
            header('Content-Type: text/html; charset=utf-8');
            echo $result;
        } else {
            if(FM_DYNLOAD) {
                header('Content-Type: application/x-fdynload+json');
                echo json_encode([
                    'components' => $fmComponentVars ?? [],
                    'raw_html' => $result,
                ]);
            } else {
                echo $result;
            }
        }
    }
}