<?php
/**
 * Batch migration: enkripsi data medis hasil lab dan log
 * Jalankan via: php scripts/migrate_encrypt_results.php
 * Aman dijalankan berulang: skip row yang sudah ada _enc-nya
 */

// Load .env
$env_file = __DIR__ . '/../.env';
if (!file_exists($env_file)) {
    die("ERROR: .env tidak ditemukan di " . realpath(__DIR__ . '/..') . PHP_EOL);
}
foreach (file($env_file, 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;
}

define('BASEPATH', true);
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]
);

$batch = 500;

// Helper: migrate tabel dengan field-field sederhana (tanpa bidx)
function migrate_simple(PDO $pdo, Ibl_encryptor $enc, $table, $pk, $fields, $check_field)
{
    echo "=== {$table} ===\n";
    $total    = 0;
    $cols_sel = implode(', ', array_merge([$pk], $fields));
    $set_parts = array();
    foreach ($fields as $f) {
        $set_parts[] = "{$f}_enc = ?";
    }
    $sets = implode(', ', $set_parts);
    $stmt = $pdo->prepare("UPDATE {$table} SET {$sets} WHERE {$pk} = ?");

    while (true) {
        $rows = $pdo->query(
            "SELECT {$cols_sel} FROM {$table} WHERE {$check_field}_enc IS NULL LIMIT 500"
        )->fetchAll(PDO::FETCH_ASSOC);

        if (empty($rows)) break;

        foreach ($rows as $row) {
            $params = array();
            foreach ($fields as $f) {
                $params[] = $enc->encrypt((string)(isset($row[$f]) ? $row[$f] : ''));
            }
            $params[] = $row[$pk];
            $stmt->execute($params);
            $total++;
        }
        echo "  {$total} rows...\n";
    }
    echo "selesai: {$total} rows\n\n";
}

// ============================================================
// one_lab tables
// ============================================================
migrate_simple($pdo, $enc, 't_orderdelivery', 'T_OrderDeliveryID',
    ['T_OrderDeliveryDestination'],
    'T_OrderDeliveryDestination');

migrate_simple($pdo, $enc, 't_orderdetail', 'T_OrderDetailID',
    ['T_OrderDetailResult', 'T_OrderDetailNote'],
    'T_OrderDetailResult');

migrate_simple($pdo, $enc, 't_orderheader', 'T_OrderHeaderID',
    ['T_OrderHeaderDiagnose'],
    'T_OrderHeaderDiagnose');

migrate_simple($pdo, $enc, 'so_resultentrydetail', 'So_ResultEntryDetailID',
    ['So_ResultEntryDetailResult'],
    'So_ResultEntryDetailResult');

migrate_simple($pdo, $enc, 'so_resultentrydetail_other', 'So_ResultEntryDetailOtherID',
    ['So_ResultEntryDetailOtherResult', 'So_ResultEntryDetailOtherResultBefore'],
    'So_ResultEntryDetailOtherResult');

migrate_simple($pdo, $enc, 'so_resultentry_fisik_umum', 'So_ResultEntryFisikUmumID',
    ['So_ResultEntryFisikUmumDetails'],
    'So_ResultEntryFisikUmumDetails');

migrate_simple($pdo, $enc, 'so_resultentry_fisik_summary', 'So_ResultEntryFisikSummaryID',
    ['So_ResultEntryFisikSummaryValue', 'So_ResultEntryFisikSummaryValue2'],
    'So_ResultEntryFisikSummaryValue');

migrate_simple($pdo, $enc, 'so_resultentry_other', 'So_ResultEntryOtherID',
    ['So_ResultEntryOtherNote'],
    'So_ResultEntryOtherNote');

migrate_simple($pdo, $enc, 'so_resultentry_fisioterapi', 'So_ResultEntdyFisioterapiID',
    ['So_ResultEntdyFisioterapiDetails'],
    'So_ResultEntdyFisioterapiDetails');

migrate_simple($pdo, $enc, 'so_resultentry_smwt', 'So_ResultentrySmwtID', [
    'So_ResultentrySmwtWeight', 'So_ResultentrySmwtHeight', 'So_ResultentrySmwtBMI',
    'So_ResultentrySmwtPreTensi', 'So_ResultentrySmwtPreSPO2', 'So_ResultentrySmwtPreNadi',
    'So_ResultentrySmwtPostTensi', 'So_ResultentrySmwtPostSPO2', 'So_ResultentrySmwtPostNadi',
    'So_ResultentrySmwtVOMax', 'So_ResultentrySmwtKategoriKebugaran',
], 'So_ResultentrySmwtWeight');

migrate_simple($pdo, $enc, 'so_resultentry_srq29_conclusion', 'So_ResultentrySrq29ConclusionID',
    ['So_ResultentrySrq29ConclusionResult'],
    'So_ResultentrySrq29ConclusionResult');

migrate_simple($pdo, $enc, 'so_resultentrysdsinterpretation', 'So_ResultEntrySDSInterpretationID',
    ['So_ResultEntrySDSInterpretationDisplay'],
    'So_ResultEntrySDSInterpretationDisplay');

migrate_simple($pdo, $enc, 'member_eligible', 'Member_EligibleID',
    ['Member_EligibleDescription'],
    'Member_EligibleDescription');

// ============================================================
// one_lab_log tables (ganti koneksi ke DB log)
// ============================================================
$cfg_log = $db['one_lab_log'];
$pdo_log = new PDO(
    "mysql:host={$cfg_log['hostname']};dbname={$cfg_log['database']};charset=utf8",
    $cfg_log['username'],
    $cfg_log['password'],
    [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
);

migrate_simple($pdo_log, $enc, 'log_patient', 'Log_PatientID',
    ['Log_PatientJsonBefore', 'Log_PatientJsonAfter'],
    'Log_PatientJsonBefore');

migrate_simple($pdo_log, $enc, 'log_fo', 'Log_FoID',
    ['Log_FoJson'],
    'Log_FoJson');

migrate_simple($pdo_log, $enc, 'log_resultentry', 'Log_ResultEntryID',
    ['Log_ResultEntryJSONBefore', 'Log_ResultEntryJSONAfter'],
    'Log_ResultEntryJSONBefore');

echo "=== Semua migrasi hasil lab selesai ===\n";