<?php
/**
 * Populate M_PatientNIK_bidx dari M_PatientNIK_enc yang sudah ada
 * Jalankan via: php scripts/migrate_nik_bidx.php
 * Aman dijalankan berulang: skip row yang sudah ada bidx-nya
 */

define('BASEPATH', true);
foreach (file(__DIR__ . '/../.env', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $l) {
    if (strpos(trim($l), '#') === 0) continue;
    [$k, $v] = array_map('trim', explode('=', $l, 2));
    if ($k !== '') $_ENV[$k] = $v;
}

require __DIR__ . '/../application/libraries/Ibl_encryptor.php';
$enc = new Ibl_encryptor();

include __DIR__ . '/../application/config/database.php';
$cfg = $db['default'];
$pdo = new PDO(
    "mysql:host={$cfg['hostname']};dbname={$cfg['database']};charset=utf8",
    $cfg['username'], $cfg['password'],
    [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
);

echo "=== Populate M_PatientNIK_bidx ===\n";
$total = 0;
$batch = 500;

$stmt = $pdo->prepare(
    "UPDATE m_patient SET M_PatientNIK_bidx = ? WHERE M_PatientID = ?"
);

while (true) {
    $rows = $pdo->query(
        "SELECT M_PatientID, M_PatientNIK_enc
         FROM m_patient
         WHERE M_PatientNIK_enc IS NOT NULL
           AND M_PatientNIK_bidx IS NULL
         LIMIT {$batch}"
    )->fetchAll(PDO::FETCH_ASSOC);

    if (empty($rows)) break;

    foreach ($rows as $row) {
        $nik = $enc->decrypt($row['M_PatientNIK_enc']);
        $stmt->execute([
            $enc->search_bidx((string)($nik ?? '')),
            $row['M_PatientID'],
        ]);
        $total++;
    }
    echo "  {$total} rows...\n";
}

echo "Selesai: {$total} rows\n";