<?php
// ─── Contactos (fitme3070_info, linha id=1) ───────────────────────────────────
// Single-row table read by site_info() (functions_site.php) — contact section,
// footer, mobile "Ligar" bar, WhatsApp button and the SEO JSON-LD all take their
// values from here, so one save updates every place.
// Used by views/admin/info/edit.php.

// field => [label, max length, input type]. Order is the form order.
function info_fields(): array {
    return [
        'name'             => ['Nome do ginásio',           200, 'text'],
        'adress'           => ['Morada',                    200, 'text'],
        'phone'            => ['Telefone principal',         25, 'tel'],
        'telephone'        => ['Telefone secundário',        25, 'tel'],
        'whatsapp'         => ['WhatsApp (só dígitos, ex.: 351964201137)', 13, 'text'],
        'email'            => ['E-mail',                    100, 'email'],
        'website'          => ['Website',                   100, 'text'],
        'instagram'        => ['Instagram (URL)',           200, 'url'],
        'facebook'         => ['Facebook (URL)',            200, 'url'],
        'messenger'        => ['Messenger (URL)',           200, 'url'],
        'google_maps_link' => ['Google Maps — link',        255, 'url'],
        'google_maps'      => ['Google Maps — código embed (iframe)', 0, 'textarea'],
    ];
}

function info_from_post(array $post, array &$errors): array {
    $data = [];
    foreach (info_fields() as $key => [$label, $max, $type]) {
        $v = trim((string) ($post[$key] ?? ''));
        if ($key === 'whatsapp') $v = preg_replace('/\D+/', '', $v);
        if ($max > 0 && mb_strlen($v) > $max) $errors[] = "«{$label}» tem mais de {$max} caracteres.";
        if ($v !== '' && $type === 'email' && !filter_var($v, FILTER_VALIDATE_EMAIL)) $errors[] = 'O e-mail não é válido.';
        if ($v !== '' && $type === 'url' && !preg_match('~^https?://~i', $v)) $errors[] = "«{$label}» tem de começar por https://";
        $data[$key] = $v;
    }
    // Only a Google Maps iframe survives; anything else is dropped here rather
    // than stored and filtered on every page view.
    $data['google_maps'] = clean_map_embed($data['google_maps']);
    if ($data['name'] === '')  $errors[] = 'O nome é obrigatório.';
    if ($data['phone'] === '') $errors[] = 'O telefone principal é obrigatório.';
    return $data;
}

function db_info_save(PDO $pdo, array $data): bool {
    $cols = array_keys(info_fields());
    // One row per gym (id = gyms.id): the gym being edited in the backoffice.
    $gid = admin_gym_id();
    $exists = (bool) $pdo->query("SELECT COUNT(*) FROM fitme3070_info WHERE id = " . $gid)->fetchColumn();
    $vals = array_map(fn($c) => $data[$c] ?? '', $cols);
    if ($exists) {
        $sets = implode(', ', array_map(fn($c) => "`$c` = ?", $cols));
        $stmt = $pdo->prepare("UPDATE fitme3070_info SET $sets, updated_at = NOW() WHERE id = " . $gid);
    } else {
        $names = implode(', ', array_map(fn($c) => "`$c`", $cols));
        $marks = implode(', ', array_fill(0, count($cols), '?'));
        $stmt = $pdo->prepare("INSERT INTO fitme3070_info (id, $names, updated_at) VALUES (" . $gid . ", $marks, NOW())");
    }
    $stmt->execute($vals);
    return $stmt->rowCount() > 0;
}