<?php
/*
 *  GNUfault.org - GNUfault's website
 *  Copyright (C) 2026  Connor Thomson
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

require_once ROOT . '/php/preprocess.php';

function replace(string $templatePath, array $replacements = []): string {
    $html = import($templatePath);

    foreach ($replacements as $placeholder => $replacementValue) {
        $replacementValue = tidy((string)$replacementValue);

        if ($replacementValue === '') {
            $pattern = '/^[ \t]*' . preg_quote($placeholder, '/') . '[ \t]*\n?/m';

            $html = preg_replace($pattern, '', $html);
        }

        $pattern = '/^([ \t]*)' . preg_quote($placeholder, '/') . '/m';

        $html = preg_replace_callback($pattern, function (array $match) use ($replacementValue) {
            return indent($replacementValue, $match[1]);
        }, $html);

        $html = str_replace($placeholder, $replacementValue, $html);
    }

    return tidy($html);
}

?>