<?php
/**
 * Smoke test: CD low balance alert on debit (DepositHelper + CdLowBalanceAlertHelper)
 *
 * Run:
 *   php tests/smoke_cd_low_balance_alert.php [cd_ac_pk]           # dry-run: show state only
 *   php tests/smoke_cd_low_balance_alert.php [cd_ac_pk] --debit 1 # live: post 1 INR test debit + alert check
 *   php tests/smoke_cd_low_balance_alert.php --cron               # run cron scan only
 */

declare(strict_types=1);

ob_start();

define('FCPATH', __DIR__ . '/../public/');
chdir(FCPATH);

require FCPATH . '../app/Config/Paths.php';
$paths = new Config\Paths();
require rtrim($paths->systemDirectory, '\\/ ') . DIRECTORY_SEPARATOR . 'bootstrap.php';
require_once SYSTEMPATH . 'Config/DotEnv.php';
(new CodeIgniter\Config\DotEnv(ROOTPATH))->load();

defined('ENVIRONMENT') || define('ENVIRONMENT', env('CI_ENVIRONMENT', 'development'));

$boot = APPPATH . 'Config/Boot/' . ENVIRONMENT . '.php';
if (is_file($boot)) {
    require_once $boot;
}

use App\Helpers\CdLowBalanceAlertHelper;
use App\Helpers\DepositHelper;
use App\Models\CDMasterModel;
use App\Models\ClientDepositModel;
use App\Models\ClientRMModel;

$pass    = 0;
$fail    = 0;
$results = [];

function ok(string $label, bool $cond, string $detail = ''): void
{
    global $pass, $fail, $results;
    if ($cond) {
        $pass++;
        $results[] = '[PASS] ' . $label . ($detail ? " — {$detail}" : '');
    } else {
        $fail++;
        $results[] = '[FAIL] ' . $label . ($detail ? " — {$detail}" : '');
    }
}

function argValue(string $flag): ?string
{
    global $argv;
    $idx = array_search($flag, $argv, true);
    if ($idx === false || ! isset($argv[$idx + 1])) {
        return null;
    }

    return (string) $argv[$idx + 1];
}

function resolveCurrentBalance(ClientDepositModel $depositModel, int $cdAcPk, float $openingBalance): float
{
    $lastDeposit = $depositModel
        ->select('balance')
        ->where('cd_ac_pk', $cdAcPk)
        ->where('is_active', 1)
        ->orderBy('id', 'DESC')
        ->first();

    if (! empty($lastDeposit)) {
        return (float) ($lastDeposit['balance'] ?? 0);
    }

    return $openingBalance;
}

$db            = db_connect('default');
$cdMasterModel = new CDMasterModel();
$depositModel  = new ClientDepositModel();
$runCron       = in_array('--cron', $argv, true);
$debitAmount   = argValue('--debit');
$cdAcPkArg     = null;

foreach (array_slice($argv, 1) as $arg) {
    if (str_starts_with($arg, '--')) {
        continue;
    }
    if (ctype_digit($arg)) {
        $cdAcPkArg = (int) $arg;
        break;
    }
}

echo PHP_EOL . '=== smoke_cd_low_balance_alert ===' . PHP_EOL;

if ($runCron) {
    $response = CdLowBalanceAlertHelper::runCron();
    ok('cron status', ($response['status'] ?? false) === true, (string) ($response['message'] ?? ''));
    ok('cron response has data key', array_key_exists('data', $response));
    echo 'Cron response: ' . json_encode($response, JSON_PRETTY_PRINT) . PHP_EOL;
} else {
    $configured = $cdMasterModel->getCdMastersWithLowAlertThreshold();
    ok('at least one CD master has alert threshold', count($configured) > 0, 'count=' . count($configured));

    if ($cdAcPkArg === null && ! empty($configured)) {
        $cdAcPkArg = (int) ($configured[0]['id'] ?? 0);
    }

    ok('cd_ac_pk resolved', $cdAcPkArg !== null && $cdAcPkArg > 0, 'cd_ac_pk=' . ($cdAcPkArg ?? 'none'));

    if ($cdAcPkArg > 0) {
        $cdMaster = $cdMasterModel->getCdMasterWithLowAlertThresholdById($cdAcPkArg);
        ok('CD master found with alert threshold', $cdMaster !== null, 'cd_ac_pk=' . $cdAcPkArg);

        if ($cdMaster !== null) {
            $threshold      = (float) ($cdMaster['cd_balance_low_alert_amount'] ?? 0);
            $currentBalance = resolveCurrentBalance($depositModel, $cdAcPkArg, (float) ($cdMaster['opening_bal'] ?? 0));
            $isLow          = $currentBalance < $threshold;

            echo PHP_EOL . 'Account snapshot:' . PHP_EOL;
            echo '  client_id   : ' . ($cdMaster['client_id'] ?? '') . ' (' . ($cdMaster['client_name'] ?? '') . ')' . PHP_EOL;
            echo '  cd_ac_pk    : ' . $cdAcPkArg . PHP_EOL;
            echo '  cd_ac_no    : ' . ($cdMaster['cd_ac_no'] ?? '') . PHP_EOL;
            echo '  balance     : ' . number_format($currentBalance, 2) . PHP_EOL;
            echo '  alert amt   : ' . number_format($threshold, 2) . PHP_EOL;
            echo '  below alert : ' . ($isLow ? 'yes' : 'no') . PHP_EOL;

            $acmRows = (new ClientRMModel())
                ->select('user_profiles.first_name, user_profiles.email')
                ->join('user_profiles', 'user_profiles.id = client_rm.user_id')
                ->where('client_rm.client_id', (int) $cdMaster['client_id'])
                ->where('client_rm.level', 3)
                ->where('client_rm.is_active', 1)
                ->where('user_profiles.is_active', 1)
                ->findAll();
            ok('account manager exists for client', count($acmRows) > 0, 'count=' . count($acmRows));

            foreach ($acmRows as $row) {
                echo '  ACM         : ' . ($row['first_name'] ?? '') . ' <' . ($row['email'] ?? '') . '>' . PHP_EOL;
            }

            if ($debitAmount !== null) {
                $amount = (float) $debitAmount;
                ok('debit amount > 0', $amount > 0, 'amount=' . $amount);

                $beforeBalance = $currentBalance;
                $afterBalance  = $beforeBalance - $amount;

                echo PHP_EOL . 'Posting test debit of ' . number_format($amount, 2) . ' ...' . PHP_EOL;

                $saveResult = DepositHelper::saveDeposit([
                    'amount' => $amount,
                    'sub_type_id' => 4,
                    'client_id' => (int) $cdMaster['client_id'],
                    'client_policy_id' => 0,
                    'endorsement_no' => 'SMOKE-TEST-' . date('YmdHis'),
                    'cd_ac_no' => (string) ($cdMaster['cd_ac_no'] ?? ''),
                    'insurer_id' => (int) ($cdMaster['insurer_id'] ?? 0),
                    'unit' => 'SMOKE',
                    'description' => 'Smoke test debit for CD low balance alert',
                    'transaction_type' => 'Debit',
                    'updated_by' => 1,
                    'event_name' => 'smoke_test',
                    'is_active' => 1,
                    'cd_ac_pk' => $cdAcPkArg,
                ], 1);

                ok('saveDeposit succeeded', ($saveResult['success'] ?? false) === true, json_encode($saveResult));

                $newBalance = resolveCurrentBalance($depositModel, $cdAcPkArg, (float) ($cdMaster['opening_bal'] ?? 0));
                ok('balance reduced after debit', $newBalance < $beforeBalance, "before={$beforeBalance}, after={$newBalance}");

                if ($afterBalance < $threshold) {
                    ok('balance now below alert threshold', $newBalance < $threshold);
                    echo 'Check writable/logs/log-' . date('Y-m-d') . '.log for CdLowBalanceAlertHelper triggerAfterBalanceReduction' . PHP_EOL;
                    echo 'ACM mail should be sent if mail is configured.' . PHP_EOL;
                } else {
                    echo 'Balance still above alert threshold after debit; no mail expected.' . PHP_EOL;
                    echo 'Tip: use a larger --debit amount or lower cd_balance_low_alert_amount for this account.' . PHP_EOL;
                }
            } else {
                echo PHP_EOL . 'Dry run only (no debit posted).' . PHP_EOL;
                echo 'To test live debit + alert: php tests/smoke_cd_low_balance_alert.php ' . $cdAcPkArg . ' --debit 1' . PHP_EOL;
                echo 'To test cron scan: php tests/smoke_cd_low_balance_alert.php --cron' . PHP_EOL;
            }
        }
    }
}

echo PHP_EOL . implode(PHP_EOL, $results) . PHP_EOL;
echo PHP_EOL . "Summary: {$pass} passed, {$fail} failed" . PHP_EOL;

exit($fail > 0 ? 1 : 0);