<?php
declare(strict_types=1);

require_once dirname(__DIR__) . '/includes/functions.php';
require_login();

$keys = [
    'social_top_enabled',
    'instagram_url',
    'facebook_url',
    'tiktok_url',
    'youtube_url',
    'x_url',
    'pinterest_url',
    'linkedin_url',
    'tripadvisor_url',
    'google_maps_url',
];

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    verify_csrf();

    try {
        $stmt = db()->prepare(
            'INSERT INTO settings (setting_key, setting_value)
             VALUES (?, ?)
             ON DUPLICATE KEY UPDATE setting_value = VALUES(setting_value)'
        );

        foreach ($keys as $key) {
            $value = trim((string)($_POST[$key] ?? ''));
            $stmt->execute([$key, $value]);
        }

        $upload = $_FILES['social_share_image'] ?? null;

        if ($upload && (int)($upload['error'] ?? UPLOAD_ERR_NO_FILE) !== UPLOAD_ERR_NO_FILE) {
            if ((int)$upload['error'] !== UPLOAD_ERR_OK) {
                throw new RuntimeException('Błąd wysyłania grafiki social.');
            }

            if ((int)$upload['size'] > 8 * 1024 * 1024) {
                throw new RuntimeException('Grafika social jest za duża. Maksymalnie 8 MB.');
            }

            $tmp = (string)$upload['tmp_name'];

            if (!is_uploaded_file($tmp)) {
                throw new RuntimeException('Nieprawidłowy upload.');
            }

            $mime = (new finfo(FILEINFO_MIME_TYPE))->file($tmp);
            $extMap = [
                'image/jpeg' => 'jpg',
                'image/png' => 'png',
                'image/webp' => 'webp',
            ];

            if (!isset($extMap[$mime])) {
                throw new RuntimeException('Grafika social: użyj JPG, PNG albo WEBP.');
            }

            $dir = dirname(__DIR__) . '/assets/img/social';

            if (!is_dir($dir) && !mkdir($dir, 0755, true) && !is_dir($dir)) {
                throw new RuntimeException('Nie udało się utworzyć katalogu social.');
            }

            foreach (glob($dir . '/social-share.*') ?: [] as $old) {
                @unlink($old);
            }

            $filename = 'social-share.' . $extMap[$mime];
            $target = $dir . '/' . $filename;

            if (!move_uploaded_file($tmp, $target)) {
                throw new RuntimeException('Nie udało się zapisać grafiki social.');
            }

            @chmod($target, 0644);

            $stmt->execute([
                'default_og_image',
                site_url('/assets/img/social/' . $filename),
            ]);
        }

        admin_log('socials_update', 'Zmieniono sociale i grafikę udostępnień');
        flash('success', 'Sociale zostały zapisane.');
        redirect('/admin/socials.php');
    } catch (Throwable $e) {
        flash('error', $e->getMessage());
        redirect('/admin/socials.php');
    }
}

$values = [];
foreach ($keys as $key) {
    $values[$key] = setting($key, $key === 'social_top_enabled' ? '1' : '');
}

render_admin_header('Sociale');
?>
<div class="admin-title-row">
    <div>
        <h1>Sociale</h1>
        <p>Wpisujesz link – ikona pojawia się automatycznie na górze WWW i w stopce.</p>
    </div>
</div>

<form class="form-card form-grid" method="post" enctype="multipart/form-data">
    <?= csrf_field() ?>

    <label>
        Ikony na górze strony
        <select name="social_top_enabled">
            <option value="1" <?= $values['social_top_enabled'] === '1' ? 'selected' : '' ?>>Włączone</option>
            <option value="0" <?= $values['social_top_enabled'] === '0' ? 'selected' : '' ?>>Wyłączone</option>
        </select>
    </label>

    <label>
        Instagram
        <input type="url" name="instagram_url" value="<?= e($values['instagram_url']) ?>" placeholder="https://instagram.com/...">
    </label>

    <label>
        Facebook
        <input type="url" name="facebook_url" value="<?= e($values['facebook_url']) ?>" placeholder="https://facebook.com/...">
    </label>

    <label>
        TikTok
        <input type="url" name="tiktok_url" value="<?= e($values['tiktok_url']) ?>" placeholder="https://tiktok.com/@...">
    </label>

    <label>
        YouTube
        <input type="url" name="youtube_url" value="<?= e($values['youtube_url']) ?>" placeholder="https://youtube.com/...">
    </label>

    <label>
        X / Twitter
        <input type="url" name="x_url" value="<?= e($values['x_url']) ?>" placeholder="https://x.com/...">
    </label>

    <label>
        Pinterest
        <input type="url" name="pinterest_url" value="<?= e($values['pinterest_url']) ?>" placeholder="https://pinterest.com/...">
    </label>

    <label>
        LinkedIn
        <input type="url" name="linkedin_url" value="<?= e($values['linkedin_url']) ?>" placeholder="https://linkedin.com/...">
    </label>

    <label>
        Tripadvisor
        <input type="url" name="tripadvisor_url" value="<?= e($values['tripadvisor_url']) ?>" placeholder="https://tripadvisor...">
    </label>

    <label class="full">
        Google / mapa / profil firmy
        <input type="url" name="google_maps_url" value="<?= e($values['google_maps_url']) ?>" placeholder="https://maps.google.com/...">
    </label>

    <div class="full admin-section-title">
        <h2>Grafika do udostępnień</h2>
        <p>Ta grafika będzie używana np. przy wklejaniu linku strony na Facebooku, komunikatorach i innych serwisach.</p>
    </div>

    <?php if (setting('default_og_image') !== ''): ?>
        <div class="full social-share-preview">
            <img src="<?= e(setting('default_og_image')) ?>" alt="Aktualna grafika social">
        </div>
    <?php endif; ?>

    <label class="full">
        Podmień grafikę social
        <input type="file" name="social_share_image" accept="image/jpeg,image/png,image/webp">
    </label>

    <div class="full">
        <button class="btn btn-primary" type="submit">Zapisz sociale</button>
    </div>
</form>
<?php render_admin_footer(); ?>