<?php
require_once __DIR__ . '/../../connect.php';

$id = filterRequest("id");

$fields = [];
$params = [":id" => $id];

$encryptedFields = [
    "phone", "sosPhone", "birthdate", "site", "gender",
    "first_name", "last_name", "education", "employmentType", "maritalStatus"
];

// أي تعديل على حقل مفهرس يجب أن يُحدّث فهرسه في نفس العبارة، وإلا بقي
// الفهرس يشير إلى القيمة القديمة وأصبح البحث يعطي نتيجة خاطئة.
global $blindIndex;
$plain = [];

foreach ($encryptedFields as $field) {
    if (isset($_POST[$field]) && !empty($_POST[$field])) {
        $value = filterRequest($field);
        $plain[$field] = $value;
        $encryptedValue = $encryptionHelper->encryptData($value);
        $fields[] = "`$field` = :$field";
        $params[":$field"] = $encryptedValue;
    }
}

if ($blindIndex) {
    if (isset($plain['phone'])) {
        $fields[] = "`phone_bidx` = :phone_bidx";
        $params[':phone_bidx'] = $blindIndex->index('passengers.phone', $plain['phone']);
    }
    if (isset($plain['first_name']) || isset($plain['last_name'])) {
        // الاسم مركّب من عمودين: نقرأ الجزء غير المُعدَّل من السجل الحالي
        $current = $con->prepare("SELECT first_name, last_name FROM passengers WHERE id = :id");
        $current->execute([':id' => $id]);
        $row = $current->fetch(PDO::FETCH_ASSOC) ?: [];

        $first = $plain['first_name'] ?? $encryptionHelper->decryptData($row['first_name'] ?? null) ?: '';
        $last  = $plain['last_name']  ?? $encryptionHelper->decryptData($row['last_name']  ?? null) ?: '';

        $fields[] = "`name_bidx` = :name_bidx";
        $params[':name_bidx'] = $blindIndex->index('passengers.name', trim("$first $last"));
    }
}

if (!empty($fields)) {
    $setClause = implode(", ", $fields);
    $sql = "UPDATE `passengers` SET $setClause WHERE `id` = :id";
    $stmt = $con->prepare($sql);
    $stmt->execute($params);

    if ($stmt->rowCount() > 0) {
        jsonSuccess(null, "Passenger data updated successfully");
    } else {
        jsonError("Failed to update passenger data");
    }
} else {
    jsonError("No fields to update");
}
?>