<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Site\ReportController;
use App\Models\Customer;
use App\Models\Order;
use App\Models\Product;
use App\Models\Zarin;
use App\Services\AccountingProductDocMapper;
use App\Services\ZarinSyncService;
use Carbon\Carbon;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;
use Symfony\Component\HttpKernel\Exception\UnprocessableEntityHttpException;

class ZarinController extends Controller
{
    protected function sync(): ZarinSyncService
    {
        return app(ZarinSyncService::class);
    }

    private function lastPriceData(): array
    {
        $response = app(ReportController::class)->lastPrice(request());

        if (is_array($response)) {
            return $response;
        }

        if (is_object($response) && method_exists($response, 'getData')) {
            return (array) $response->getData(true);
        }

        return (array) $response;
    }

    private function zarinConfigError()
    {
        return response()->json([
            'message' => 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.'
        ], 422);
    }

    private function zarinAccountingUrl()
    {
        $api = trim((string) $this->Config('zarin_api'));

        if (empty($api)) {
            return null;
        }

        return rtrim($api, '/') . '/ZarrinService/accounting';
    }

    private function zarinToken()
    {
        $token = trim((string) $this->Config('zarin_token'));

        return empty($token) ? null : $token;
    }

    private function zarinRequest(array $params, int $timeout = 15)
    {
        $url = $this->zarinAccountingUrl();
        $token = $this->zarinToken();

        if (!$url || !$token) {
            return null;
        }

        $params['token'] = $token;

        return Http::withoutVerifying()
            ->timeout($timeout)
            ->get($url, $params);
    }

    /**
     * decode پاسخ HTTP زرین — خطاهای متنی (مثل ERROR: radif is empty) را هم برمی‌گرداند.
     *
     * @return array{0: ?array, 1: ?string} [json, error]
     */
    private function zarinDecodeResponse($http): array
    {
        if (!$http) {
            return [null, 'تنظیمات zarin_api یا zarin_token خالی است.'];
        }

        $body = (string) $http->body();
        $json = $http->json();
        if (!is_array($json) && $body !== '') {
            $decoded = json_decode($body, true);
            if (is_array($decoded)) {
                $json = $decoded;
            }
        }

        if (!$http->successful()) {
            $detail = null;
            if (is_array($json)) {
                $detail = $json['detail'] ?? $json['msg'] ?? $json['message'] ?? $json['error'] ?? null;
            }
            if ($detail === null || $detail === '') {
                $detail = trim($body) !== '' ? mb_substr(trim($body), 0, 300) : null;
            }
            $error = 'HTTP ' . $http->status() . ($detail ? (': ' . $detail) : '');

            return [is_array($json) ? $json : null, $error];
        }

        if (!is_array($json)) {
            return [null, 'پاسخ زرین JSON نیست (طول ' . strlen($body) . ')'];
        }

        return [$json, null];
    }

    private function zarinDefaultNoeKar()
    {
        $value = (int) $this->Config('zarin_noe_kar');

        return $value > 0 ? $value : 16;
    }

    /**
     * نوع کار برای سند تعدادی (sabtSanadTedadi).
     * روی زرین aygin: 16=گرمی (رد می‌شود)، 17=سکه-تعدادی، 18=اجرت تعدادی.
     */
    private function zarinCountNoeKar(): int
    {
        $tedadi = (int) $this->Config('zarin_noe_kar_tedadi');
        if (in_array($tedadi, [17, 18], true)) {
            return $tedadi;
        }

        $configured = $this->zarinDefaultNoeKar();
        if (in_array($configured, [17, 18], true)) {
            return $configured;
        }

        // 16 و سایر مقادیر گرمی/نامرتبط برای sabtSanadTedadi قابل استفاده نیستند
        return 17;
    }

    /** fkNoeهایی که sabtSanadTedadi قبول می‌کند */
    private function zarinCountFkNoes(): array
    {
        return ['17', '18'];
    }

    private function zarinDefaultGoroheKar()
    {
        $value = (int) $this->Config('zarin_gorohe_kar');

        return $value > 0 ? $value : 52;
    }

    /** نام گروه حساب مشتری در زرین — تنظیم zarin_name_g؛ خالی = گروه ۶ مشتری نقدی */
    private function zarinCustomerGroupName(): string
    {
        $nameG = trim((string) $this->Config('zarin_name_g'));

        return $nameG !== '' ? $nameG : 'مشتری نقدی (خریدار)';
    }

    /** آیا درخواست لیست زرین را خواسته؟ (query/body/header؛ مقاوم به QUERY_STRING خالی) */
    private function requestWantsZarinList(Request $request): bool
    {
        $header = $request->header('X-Include-Zarin', $request->header('Include-Zarin'));
        if ($header !== null && $header !== '') {
            if (filter_var($header, FILTER_VALIDATE_BOOLEAN) || in_array($header, [1, '1', 'yes', 'on'], true)) {
                return true;
            }
        }

        foreach (['include_zarin', 'include_tahesab'] as $key) {
            $raw = $request->query($key, $request->input($key, null));
            if ($raw === null && !$request->query->has($key) && !$request->exists($key)) {
                continue;
            }
            // ?include_zarin بدون مقدار
            if ($raw === null || $raw === '' || $raw === []) {
                return true;
            }
            if ($request->boolean($key)) {
                return true;
            }
            if (in_array($raw, [1, '1', true, 'true', 'yes', 'on', 'TRUE', 'Yes'], true)) {
                return true;
            }
        }

        return false;
    }

    /** مقایسه نام گروه زرین (ی/ک، پرانتز/آندرلاین، فاصله) */
    private function zarinGroupNamesMatch(string $a, string $b): bool
    {
        $norm = function (string $s): string {
            $s = $this->normalizeZarinName($s);
            $s = str_replace(['(', ')', '_', '-', '–', '—'], ' ', $s);

            return trim(preg_replace('/\s+/u', ' ', $s) ?? $s);
        };

        $na = $norm($a);
        $nb = $norm($b);
        if ($na === '' || $nb === '') {
            return false;
        }

        return $na === $nb
            || $this->containsText($na, $nb)
            || $this->containsText($nb, $na);
    }

    /**
     * پیشوند عددی uid — وقتی چند پنل یک توکن زرین دارند باید متفاوت باشد
     * تا uid تکراری و پاسخ Cache قاطی نشود (فقط ارقام، طبق داکیومنت زرین).
     */
    private function zarinUid(string $kindPrefix, $localId): string
    {
        $panel = preg_replace('/\D+/', '', (string) $this->Config('zarin_uid_prefix')) ?: '';
        $local = preg_replace('/\D+/', '', (string) $localId) ?: '0';

        return $panel . $kindPrefix . $local;
    }

    private function isListArray(array $array)
    {
        if (function_exists('array_is_list')) {
            return array_is_list($array);
        }

        return array_keys($array) === range(0, count($array) - 1);
    }

    private function containsText($haystack, $needle)
    {
        $haystack = (string) $haystack;
        $needle = (string) $needle;

        if ($needle === '') {
            return false;
        }

        return mb_strpos($haystack, $needle) !== false;
    }

    private function normalizeZarinName($value)
    {
        $value = trim((string) $value);

        $value = str_replace(['ي', 'ك', '‌'], ['ی', 'ک', ' '], $value);
        $value = preg_replace('/\s+/u', ' ', $value);

        return mb_strtolower($value);
    }

    private function zarinRowsFromBody($body)
    {
        if (!is_array($body)) {
            return [];
        }

        $data = $body['data'] ?? $body['Data'] ?? [];

        if (!is_array($data)) {
            return [];
        }

        return $this->isListArray($data) ? $data : [$data];
    }

    private function extractResponseRow(?array $body): array
    {
        if (!is_array($body)) {
            return [];
        }

        if (isset($body['data']) && is_array($body['data'])) {
            $data = $this->isListArray($body['data'])
                ? ($body['data'][0] ?? [])
                : $body['data'];

            if (is_array($data)) {
                return array_merge($body, $data);
            }
        }

        return $body;
    }

    /**
     * پیدا کردن کار/کالای محصول در زرین.
     * اولویت: listKarSakhte (کاتالوگ کار ساخته) → infosakhte → infokarbarcodi.
     */
    private function findZarinKarForProduct(Product $product, $goroheKar = null, bool $exactOnly = false)
    {
        $goroheKar = $goroheKar ?: $this->zarinDefaultGoroheKar();
        $productName = $this->normalizeZarinName($product->title);

        $fromList = $this->findZarinKarInListKarSakhte($productName, $exactOnly, true);
        if ($fromList) {
            return $fromList;
        }

        $fromBarcode = $this->findZarinKarInInfokarbarcodi($productName, $goroheKar, $exactOnly);
        if ($fromBarcode) {
            return $fromBarcode;
        }

        return $this->findZarinKarInInfosakhte($productName, $goroheKar, $exactOnly);
    }

    /**
     * کاتالوگ کارهای ساخته (لیست ۴۷ زرین) — id همین idKar سند تعدادی است.
     * برای سند تعدادی فقط fkNoe سکه-تعدادی/اجرت تعدادی (۱۷/۱۸) قبول می‌شود؛ گرمی(۱۶) رد.
     */
    private function findZarinKarInListKarSakhte(string $productName, bool $exactOnly = false, bool $countDocOnly = true): ?array
    {
        $response = $this->zarinRequest([
            'kind' => 'listKarSakhte',
        ], 30);

        if (!$response || !$response->successful()) {
            return null;
        }

        $rows = $this->zarinRowsFromBody($response->json());
        if (empty($rows)) {
            return null;
        }

        $allowedFk = $this->zarinCountFkNoes();
        $exact = null;
        $fuzzy = null;

        foreach ($rows as $row) {
            if (!is_array($row)) {
                continue;
            }

            $fkNoe = (string) ($row['fkNoe'] ?? $row['fknoe'] ?? '');
            if ($countDocOnly && $fkNoe !== '' && !in_array($fkNoe, $allowedFk, true)) {
                continue;
            }

            $name = $row['namFelezsakhthe']
                ?? $row['nam_kar_sakhte']
                ?? $row['nameKar']
                ?? $row['nam']
                ?? $row['name']
                ?? '';
            $rowName = $this->normalizeZarinName($name);
            $idKar = $this->extractUsableZarinKarId($row);
            if (!$idKar || $rowName === '') {
                continue;
            }

            if ($rowName === $productName) {
                $exact = [
                    'idKar' => $idKar,
                    'row' => $row,
                    'match' => 'exact',
                    'source' => 'listKarSakhte',
                    'fkNoe' => $fkNoe,
                ];
                break;
            }

            if (
                !$exactOnly
                && (
                    $this->containsText($rowName, $productName)
                    || $this->containsText($productName, $rowName)
                )
            ) {
                $fuzzy ??= [
                    'idKar' => $idKar,
                    'row' => $row,
                    'match' => 'fuzzy',
                    'source' => 'listKarSakhte',
                    'fkNoe' => $fkNoe,
                ];
            }
        }

        return $exact ?? ($exactOnly ? null : $fuzzy);
    }

    private function matchZarinKarRow(string $productName, array $row, bool $exactOnly = false): ?array
    {
        $name = $row['nameKar']
            ?? $row['nam_kar_sakhte']
            ?? $row['nam']
            ?? $row['name']
            ?? $row['namKar']
            ?? $row['title']
            ?? '';

        $rowName = $this->normalizeZarinName($name);
        $idKar = $this->extractUsableZarinKarId($row);

        if (!$idKar || $rowName === '') {
            return null;
        }

        if ($rowName === $productName) {
            return [
                'idKar' => $idKar,
                'row' => $row,
                'match' => 'exact',
            ];
        }

        if ($exactOnly) {
            return null;
        }

        if (
            $this->containsText($rowName, $productName) ||
            $this->containsText($productName, $rowName)
        ) {
            return [
                'idKar' => $idKar,
                'row' => $row,
                'match' => 'fuzzy',
            ];
        }

        return null;
    }

    private function findZarinKarInInfokarbarcodi(string $productName, $goroheKar, bool $exactOnly = false): ?array
    {
        $exact = null;
        $fuzzy = null;

        for ($page = 1; $page <= 10; $page++) {
            $response = $this->zarinRequest([
                'kind' => 'infokarbarcodi',
                'id' => $goroheKar,
                'vazneat' => 0,
                'pageNum' => $page,
                'detailCount' => 250,
            ]);

            // روی بعضی سرورهای زرین جدول barcodetala نیست → 400؛ برو سراغ infosakhte
            if (!$response || !$response->successful()) {
                return null;
            }

            $rows = $this->zarinRowsFromBody($response->json());
            if (empty($rows)) {
                break;
            }

            foreach ($rows as $row) {
                if (!is_array($row)) {
                    continue;
                }
                $hit = $this->matchZarinKarRow($productName, $row, $exactOnly);
                if (!$hit) {
                    continue;
                }
                if (($hit['match'] ?? '') === 'exact') {
                    $exact = $hit;
                    break 2;
                }
                $fuzzy ??= $hit;
            }

            if (count($rows) < 250) {
                break;
            }
        }

        return $exact ?? ($exactOnly ? null : $fuzzy);
    }

    /** لیست کارهای ساخته — فیلد nam_kar_sakhte / id (تست‌شده روی API زرین) */
    private function findZarinKarInInfosakhte(string $productName, $goroheKar, bool $exactOnly = false): ?array
    {
        $response = $this->zarinRequest([
            'kind' => 'infosakhte',
        ], 30);

        if (!$response || !$response->successful()) {
            return null;
        }

        $rows = $this->zarinRowsFromBody($response->json());
        if (empty($rows)) {
            return null;
        }

        $noeKar = (string) $this->zarinDefaultNoeKar();
        $gorohe = (string) $goroheKar;
        $exactPreferred = null;
        $exactFallback = null;
        $fuzzyPreferred = null;
        $fuzzyFallback = null;

        foreach ($rows as $row) {
            if (!is_array($row)) {
                continue;
            }
            $hit = $this->matchZarinKarRow($productName, $row, $exactOnly);
            if (!$hit) {
                continue;
            }

            $idGp = (string) ($row['idGpFelez'] ?? $row['idgpfelez'] ?? $row['gorooheKar'] ?? '');
            $inGroup = $idGp !== '' && ($idGp === $gorohe || $idGp === $noeKar);
            $isExact = ($hit['match'] ?? '') === 'exact';

            if ($isExact && $inGroup) {
                $exactPreferred = $hit;
                break;
            }
            if ($isExact) {
                $exactFallback ??= $hit;
            } elseif ($inGroup) {
                $fuzzyPreferred ??= $hit;
            } else {
                $fuzzyFallback ??= $hit;
            }
        }

        if ($exactOnly) {
            return $exactPreferred ?? $exactFallback;
        }

        return $exactPreferred ?? $exactFallback ?? $fuzzyPreferred ?? $fuzzyFallback;
    }

    private function getZarinKarById($idKar)
    {
        if (empty($idKar) || !is_numeric($idKar)) {
            return null;
        }

        $response = $this->zarinRequest([
            'kind' => 'infosakhte',
            'id' => (int) $idKar,
        ]);

        if (!$response || !$response->successful()) {
            return null;
        }

        $body = $response->json();
        $rows = $this->zarinRowsFromBody($body);

        foreach ($rows as $row) {
            if (!is_array($row)) {
                continue;
            }

            // infosakhte: کد کار = id (نه pkFelez)
            $rowId = $row['idKar']
                ?? $row['idkar']
                ?? $row['IDKar']
                ?? $row['id']
                ?? null;
            if ((string) $rowId === (string) $idKar) {
                return $row;
            }
        }

        return null;
    }

    /**
     * کد کار قابل استفاده برای sabtSanadTedadi.
     * infosakhte → فیلد id؛ addFelezsakhteModel → idKar.
     * pkFelez هرگز idKar نیست.
     */
    private function extractUsableZarinKarId(array $row)
    {
        foreach ([
            'idKar',
            'idkar',
            'IDKar',
            'id',
            'zarrinId',
            'zarinId',
            'code',
            'Code',
        ] as $key) {
            if (isset($row[$key]) && is_numeric($row[$key]) && (int) $row[$key] > 0) {
                return (int) $row[$key];
            }
        }

        return null;
    }

    /** پاسخ addFelezsakhteModel: {"state":true,"msg":"...","idKar":3130} */
    private function extractIdKarFromCreateResponse($body): ?int
    {
        if (!is_array($body)) {
            return null;
        }

        foreach (['idKar', 'idkar', 'IDKar'] as $key) {
            if (isset($body[$key]) && is_numeric($body[$key]) && (int) $body[$key] > 0) {
                return (int) $body[$key];
            }
        }

        $data = $body['data'] ?? null;
        if (is_array($data)) {
            if (isset($data[0]) && is_array($data[0])) {
                $fromRow = $this->extractUsableZarinKarId($data[0]);
                if ($fromRow) {
                    return $fromRow;
                }
            }
            $fromData = $this->extractUsableZarinKarId($data);
            if ($fromData) {
                return $fromData;
            }
        }

        return null;
    }

    private function createZarinKarForProduct(Product $product)
    {
        $params = [
            'kind' => 'addFelezsakhteModel',
            'nameKar' => $product->title,
            'noeKar' => $this->zarinCountNoeKar(),
            'gorooheKar' => $this->zarinDefaultGoroheKar(),
        ];

        $response = $this->zarinRequest($params);

        if (!$response) {
            return [
                'ok' => false,
                'message' => 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.',
                'status_code' => 422,
                'sent_params' => $params,
            ];
        }

        if (!$response->successful()) {
            return [
                'ok' => false,
                'message' => 'ساخت کد کار در زرین ناموفق بود.',
                'status_code' => 502,
                'status' => $response->status(),
                'body' => $response->body(),
                'json' => $response->json(),
                'sent_params' => $params,
            ];
        }

        $body = $response->json();
        if (is_array($body) && array_key_exists('state', $body) && filter_var($body['state'], FILTER_VALIDATE_BOOLEAN) === false) {
            // ممکن است کالا از قبل باشد و idKar در پیام آمده باشد
            $createdIdKar = $this->extractIdKarFromCreateResponse($body);
            if ($createdIdKar) {
                $product->finance_p_name = (string) $createdIdKar;
                $product->save();

                return [
                    'ok' => true,
                    'source' => 'create_response_idKar_despite_state',
                    'idKar' => $createdIdKar,
                    'product' => $product->fresh(),
                    'zarin_response' => $body,
                    'sent_params_success' => $params,
                ];
            }

            return [
                'ok' => false,
                'message' => (string) ($body['detail'] ?? $body['msg'] ?? $body['message'] ?? 'ساخت کد کار در زرین ناموفق بود.'),
                'status_code' => 422,
                'zarin_response' => $body,
                'sent_params' => $params,
            ];
        }

        $createdIdKar = $this->extractIdKarFromCreateResponse(is_array($body) ? $body : null);

        // اولویت با idKar برگشتی از ساخت — جستجوی فازی نام می‌تواند کالای اشتباه بچسباند
        if ($createdIdKar) {
            $product->finance_p_name = (string) $createdIdKar;
            $product->save();

            return [
                'ok' => true,
                'source' => 'created_idKar',
                'idKar' => $createdIdKar,
                'product' => $product->fresh(),
                'zarin_row' => $this->getZarinKarById($createdIdKar),
                'zarin_response' => $body,
                'sent_params_success' => $params,
            ];
        }

        $foundAfterCreate = $this->findZarinKarForProduct($product, $this->zarinDefaultGoroheKar());

        if ($foundAfterCreate && !empty($foundAfterCreate['idKar']) && is_numeric($foundAfterCreate['idKar'])) {
            $product->finance_p_name = (string) $foundAfterCreate['idKar'];
            $product->save();

            return [
                'ok' => true,
                'source' => 'created_and_found_by_name',
                'idKar' => (int) $foundAfterCreate['idKar'],
                'product' => $product->fresh(),
                'zarin_row' => $foundAfterCreate['row'],
                'zarin_response' => $body,
                'sent_params_success' => $params,
            ];
        }

        return [
            'ok' => false,
            'message' => 'زرین کالا را ساخت، اما idKar قابل استفاده برنگشت.',
            'status_code' => 422,
            'zarin_response' => $body,
            'sent_params' => $params,
        ];
    }

    private function ensureZarinKarForProduct(Product $product, $forceCreate = false)
    {
        $currentIdKar = $product->finance_p_name;
        $productName = $this->normalizeZarinName($product->title);

        // بعد از «کد کار اشتباه»: کالای تازه بساز؛ اگر ساخت نشد، exact از کاتالوگ
        if ($forceCreate) {
            $this->clearProductZarinKar($product);
            $product->refresh();

            $created = $this->createZarinKarForProduct($product);
            if (!empty($created['ok']) && !empty($created['idKar'])) {
                return $created;
            }

            $found = $this->findZarinKarForProduct($product, $this->zarinDefaultGoroheKar(), true);
            if ($found && !empty($found['idKar']) && is_numeric($found['idKar'])) {
                $product->finance_p_name = (string) $found['idKar'];
                $product->save();

                return [
                    'ok' => true,
                    'source' => 'found_exact_after_create_failed',
                    'idKar' => (int) $found['idKar'],
                    'product' => $product->fresh(),
                    'zarin_row' => $found['row'],
                    'create_error' => $created,
                ];
            }

            return $created;
        }

        if (!empty($currentIdKar) && is_numeric($currentIdKar)) {
            $existingRow = $this->getZarinKarById($currentIdKar);

            if ($existingRow) {
                $rowName = $this->normalizeZarinName(
                    $existingRow['nameKar']
                        ?? $existingRow['nam_kar_sakhte']
                        ?? $existingRow['nam']
                        ?? $existingRow['name']
                        ?? $existingRow['namKar']
                        ?? $existingRow['title']
                        ?? ''
                );
                $idGp = (string) ($existingRow['idGp'] ?? $existingRow['idgp'] ?? $existingRow['fkNoe'] ?? '');
                $wrongType = $idGp !== '' && !in_array($idGp, $this->zarinCountFkNoes(), true);

                // اگر idKar موجود مال کالای دیگری است یا نوع گرمی است (نه تعدادی) قبول نکن
                if (
                    $wrongType
                    || ($rowName !== '' && $productName !== '' && $rowName !== $productName)
                ) {
                    $this->clearProductZarinKar($product);
                    $product->refresh();
                } else {
                    $usableIdKar = $this->extractUsableZarinKarId($existingRow) ?: (int) $currentIdKar;

                    if ((string) $product->finance_p_name !== (string) $usableIdKar) {
                        $product->finance_p_name = (string) $usableIdKar;
                        $product->save();
                    }

                    return [
                        'ok' => true,
                        'source' => 'existing_verified',
                        'idKar' => (int) $usableIdKar,
                        'product' => $product->fresh(),
                        'zarin_row' => $existingRow,
                    ];
                }
            } else {
                $this->clearProductZarinKar($product);
                $product->refresh();
            }
        }

        // اول فقط exact؛ اگر نبود fuzzy از listKarSakhte/infosakhte
        $found = $this->findZarinKarForProduct($product, $this->zarinDefaultGoroheKar(), true)
            ?? $this->findZarinKarForProduct($product, $this->zarinDefaultGoroheKar(), false);

        if ($found && !empty($found['idKar']) && is_numeric($found['idKar'])) {
            $product->finance_p_name = (string) $found['idKar'];
            $product->save();

            return [
                'ok' => true,
                'source' => 'found_by_name',
                'idKar' => (int) $found['idKar'],
                'product' => $product->fresh(),
                'zarin_row' => $found['row'],
                'match' => $found['match'] ?? null,
                'list_source' => $found['source'] ?? null,
            ];
        }

        return $this->createZarinKarForProduct($product);
    }

    private function clearProductZarinKar(Product $product): void
    {
        if ($product->finance_p_name === null || $product->finance_p_name === '') {
            return;
        }
        $product->finance_p_name = null;
        $product->save();
    }

    private function isInvalidZarinKarError($response, ?string $httpError = null): bool
    {
        $haystack = '';
        if (is_string($httpError)) {
            $haystack .= $httpError;
        }
        if (is_array($response)) {
            $haystack .= ' ' . json_encode($response, JSON_UNESCAPED_UNICODE);
        } elseif (is_string($response)) {
            $haystack .= ' ' . $response;
        }

        return str_contains($haystack, 'کد کار اشتباه');
    }

    public function table(Request $request)
    {
        $view = (string) $request->input('view', 'all');
        $query = Zarin::with('customer')->orderByDesc('id');

        if ($view === 'ok') {
            $query->whereNotNull('zarin_id')->where('zarin_id', '!=', '');
        } elseif ($view === 'failed') {
            $query->where(function ($q) {
                $q->where(function ($inner) {
                    $inner->whereNull('zarin_id')->orWhere('zarin_id', '');
                })->orWhere('sync_status', 'failed');
            });
        }

        \App\DB\Te\TableEngine::create($query, $request)
            ->initSearch(['desc', 'type'])
            ->select(['*'])
            ->export($query);

        return response()->json($query);
    }

    public function show($id)
    {
        $zarin = Zarin::with('customer')->findOrFail($id);

        return response()->json($zarin);
    }

    /**
     * لیست حساب‌های زرین — فقط listhesabha (Get100Account لیست نیست و ۴۰۰ می‌دهد).
     *
     * @return array{rows: array<int, array>, error: ?string, http_status: ?int}
     */
    private function fetchAllZarinCustomers(): array
    {
        if (!$this->zarinAccountingUrl() || !$this->zarinToken()) {
            return [
                'rows' => [],
                'error' => 'تنظیمات zarin_api یا zarin_token خالی است.',
                'http_status' => null,
            ];
        }

        try {
            // listhesabha کامل است (~۳۰۰ ردیف / چند ثانیه)؛ timeout بالاتر از درخواست‌های کوتاه
            $response = $this->zarinRequest([
                'kind' => 'listhesabha',
            ], 45);

            if (!$response) {
                return [
                    'rows' => [],
                    'error' => 'درخواست به زرین ساخته نشد (آدرس/توکن).',
                    'http_status' => null,
                ];
            }

            $status = $response->status();
            $body = $response->body();

            if (!$response->successful()) {
                $snippet = mb_substr(trim((string) $body), 0, 180);
                $msg = "listhesabha ناموفق (HTTP {$status})";
                if ($snippet !== '') {
                    $msg .= ': ' . $snippet;
                }

                return [
                    'rows' => [],
                    'error' => $msg,
                    'http_status' => $status,
                ];
            }

            $json = $response->json();
            if (!is_array($json)) {
                return [
                    'rows' => [],
                    'error' => 'پاسخ listhesabha JSON معتبر نیست. طول بدنه: ' . strlen((string) $body),
                    'http_status' => $status,
                ];
            }

            $rows = $this->zarinRowsFromBody($json);

            if (empty($rows)) {
                return [
                    'rows' => [],
                    'error' => 'listhesabha خالی بود یا کلید data پیدا نشد. کلیدها: '
                        . implode(',', array_keys($json)),
                    'http_status' => $status,
                ];
            }

            return [
                'rows' => $rows,
                'error' => null,
                'http_status' => $status,
            ];
        } catch (\Exception $e) {
            Log::warning('zarin listhesabha failed', ['message' => $e->getMessage()]);

            return [
                'rows' => [],
                'error' => 'خطا در ارتباط با زرین: ' . $e->getMessage(),
                'http_status' => null,
            ];
        }
    }

    /** نام حساب از پاسخ listhesabha (فیلد nam، نه name) */
    private function extractZarinName(array $item): string
    {
        $nam = trim((string) ($item['nam'] ?? $item['Nam'] ?? ''));
        if ($nam !== '') {
            // "تستی * هوم" → "تستی هوم"
            $nam = preg_replace('/\s*\*\s*/u', ' ', $nam) ?? $nam;

            return trim(preg_replace('/\s+/u', ' ', $nam) ?? $nam);
        }

        $name = trim((string) ($item['name'] ?? $item['Name'] ?? ''));
        $family = trim((string) ($item['family'] ?? $item['Family'] ?? ''));
        $full = trim($name . ' ' . $family);

        return $full !== '' ? $full : $name;
    }

    private function extractZarinGroup(array $item): string
    {
        return trim((string) (
            $item['gorooh']
            ?? $item['GoroupName']
            ?? $item['group']
            ?? $item['Group']
            ?? ''
        ));
    }

    public function customerSyncStatus(Request $request): \Illuminate\Http\JsonResponse
    {
        return $this->buildCustomerSyncStatus($request, $this->requestWantsZarinList($request));
    }

    /** مسیر بدون query — وقتی nginx QUERY_STRING را نمی‌فرستد */
    public function customerSyncStatusWithZarin(Request $request): \Illuminate\Http\JsonResponse
    {
        return $this->buildCustomerSyncStatus($request, true);
    }

    private function buildCustomerSyncStatus(Request $request, bool $include): \Illuminate\Http\JsonResponse
    {
        $panelTotal = Customer::whereNull('deleted_at')->count();
        $panelRegistered = Customer::whereNull('deleted_at')->whereNotNull('moshtari_code')->count();
        $panelOnly = $panelTotal - $panelRegistered;

        $panelOnlyQuery = Customer::whereNull('deleted_at')->whereNull('moshtari_code')
            ->select('id', 'name', 'mobile', 'created_at');

        if ($search = $request->input('search')) {
            $panelOnlyQuery->where(function ($q) use ($search) {
                $q->where('name', 'like', "%{$search}%")
                    ->orWhere('mobile', 'like', "%{$search}%");
            });
        }
        $panelOnlyList = $panelOnlyQuery->orderBy('id')->paginate(20);

        $zarinTotal = null;
        $zarinOnlyCount = null;
        $zarinFetchError = null;
        $zarinHttpStatus = null;
        $zarinGroupFilter = $this->zarinCustomerGroupName();
        $zarinOnlyResult = ['data' => [], 'total' => 0, 'current_page' => 1, 'last_page' => 1];
        $debugSample = [];

        if ($include) {
            $fetched = $this->fetchAllZarinCustomers();
            $zarinCustomers = $fetched['rows'];
            $zarinFetchError = $fetched['error'];
            $zarinHttpStatus = $fetched['http_status'];

            // فقط گروه تنظیم‌شده (گروه ۶ / zarin_name_g) — نه همهٔ حساب‌های زرین
            if ($zarinGroupFilter !== '' && !empty($zarinCustomers)) {
                $zarinCustomers = array_values(array_filter($zarinCustomers, function ($item) use ($zarinGroupFilter) {
                    if (!is_array($item)) {
                        return false;
                    }
                    $g = $this->extractZarinGroup($item);

                    return $g !== '' && $this->zarinGroupNamesMatch($g, $zarinGroupFilter);
                }));
            }

            $zarinTotal = count($zarinCustomers);

            $panelMobiles = Customer::whereNull('deleted_at')
                ->whereNotNull('mobile')
                ->pluck('mobile')
                ->mapWithKeys(fn ($m) => [ltrim((string) $m, '0') => true])
                ->toArray();

            $panelCodes = Customer::whereNull('deleted_at')
                ->whereNotNull('moshtari_code')
                ->pluck('moshtari_code')
                ->mapWithKeys(fn ($c) => [(string) $c => true])
                ->toArray();

            $zarinOnlyList = [];
            foreach ($zarinCustomers as $item) {
                if (!is_array($item)) {
                    continue;
                }
                if (count($debugSample) < 3) {
                    $debugSample[] = $item;
                }
                $code = $item['idHesab'] ?? $item['Code'] ?? $item['code'] ?? $item['id'] ?? null;
                if ($code !== null && isset($panelCodes[(string) $code])) {
                    continue;
                }
                $phone = $this->extractZarinPhone($item);
                $tel = ltrim($phone, '0');
                if ($tel && isset($panelMobiles[$tel])) {
                    continue;
                }
                $zarinOnlyList[] = [
                    'code' => $code,
                    'name' => $this->extractZarinName($item),
                    'tel' => $phone,
                    'gid' => $item['GID'] ?? null,
                    'group' => $this->extractZarinGroup($item),
                ];
            }
            $zarinOnlyCount = count($zarinOnlyList);
            $zarinOnlyResult = [
                'data' => array_values($zarinOnlyList),
                'total' => $zarinOnlyCount,
                'current_page' => 1,
                'last_page' => 1,
            ];
        }

        $payload = [
            'panel_total' => $panelTotal,
            'panel_registered' => $panelRegistered,
            'panel_only' => $panelOnly,
            'zarin_total' => $zarinTotal,
            'zarin_only_count' => $zarinOnlyCount,
            'zarin_fetch_error' => $zarinFetchError,
            'zarin_http_status' => $zarinHttpStatus,
            'zarin_group_filter' => $zarinGroupFilter,
            'include_zarin' => $include,
            'include_zarin_param' => $request->query('include_zarin', $request->input('include_zarin')),
            'panel_only_list' => $panelOnlyList,
            'zarin_only_list' => $zarinOnlyResult,
        ];

        if ($include && ($request->boolean('raw') || $request->input('raw'))) {
            $payload['zarin_debug_sample'] = $debugSample;
        }

        return response()->json($payload)->header('Cache-Control', 'no-store, private');
    }

    private function extractZarinPhone(array $item): string
    {
        $candidates = ['mobile', 'Mobile', 'tell', 'Tell', 'tel', 'Tel', 'Phone', 'CellPhone', 'Cell', 'MobileNo', 'Telephone', 'Mobile1'];
        foreach ($candidates as $key) {
            if (isset($item[$key]) && trim((string) $item[$key]) !== '') {
                return trim((string) $item[$key]);
            }
        }
        foreach ($item as $k => $v) {
            if ($v === null || trim((string) $v) === '') {
                continue;
            }
            $lk = strtolower((string) $k);
            if (str_contains($lk, 'mobile') || str_contains($lk, 'tel')
                || str_contains($lk, 'phone') || str_contains($lk, 'cell')) {
                return trim((string) $v);
            }
        }

        return '';
    }

    public function syncPanelToZarin(): \Illuminate\Http\JsonResponse
    {
        $customers = Customer::whereNull('deleted_at')
            ->whereNull('moshtari_code')
            ->select('id', 'name', 'mobile')
            ->get();

        $success = 0;
        $failed = 0;
        $errors = [];

        foreach ($customers as $customer) {
            $result = $this->sync()->registerCustomer($customer);
            if ($result['ok'] ?? false) {
                $success++;
            } else {
                $failed++;
                $errors[] = ['name' => $customer->name, 'mobile' => $customer->mobile, 'error' => $result['message'] ?? ''];
            }
        }

        return response()->json([
            'ok' => true,
            'success' => $success,
            'failed' => $failed,
            'errors' => $errors,
        ]);
    }

    public function importFromZarin(Request $request): \Illuminate\Http\JsonResponse
    {
        $validated = $request->validate([
            'customers' => 'required|array',
            'customers.*.code' => 'required|integer',
            'customers.*.name' => 'nullable|string',
            'customers.*.tel' => 'nullable|string',
        ]);

        $success = 0;
        $failed = 0;
        $errors = [];

        foreach ($validated['customers'] as $item) {
            $mobile = Customer::normalizeMobile($item['tel'] ?? '') ?? '';
            $fullName = trim($item['name']);
            $code = (int) $item['code'];

            if ($fullName === '') {
                $fullName = 'مشتری زرین ' . $code;
            }

            // موبایل برای خیلی از حساب‌های زرین خالی است (مثل تستی هوم) — مانع import نیست
            $existing = Customer::whereNull('deleted_at')->where('moshtari_code', $code)->first();
            if ($existing) {
                $changed = false;
                if (($existing->name === null || $existing->name === '') && $fullName !== '') {
                    $existing->fname = $fullName;
                    $existing->lname = (string) ($existing->lname ?? '');
                    $existing->name = $fullName;
                    $changed = true;
                }
                if ($mobile !== '' && ($existing->mobile === null || $existing->mobile === '')) {
                    if (Customer::isMobileTaken($mobile, (int) $existing->id)) {
                        $failed++;
                        $errors[] = [
                            'name' => $item['name'],
                            'code' => $item['code'],
                            'error' => 'شماره موبایل تکراری است',
                        ];
                        continue;
                    }
                    $existing->mobile = $mobile;
                    if (empty($existing->password)) {
                        $existing->password = $mobile;
                    }
                    $changed = true;
                }
                if ($changed) {
                    $existing->save();
                }
                $success++;
                continue;
            }

            if ($mobile !== '') {
                $byMobile = Customer::findActiveByMobile($mobile);
                if ($byMobile) {
                    if (empty($byMobile->moshtari_code)) {
                        $byMobile->moshtari_code = $code;
                        if ($fullName !== '') {
                            $byMobile->fname = $fullName;
                            $byMobile->lname = '';
                            $byMobile->name = $fullName;
                        }
                        if (empty($byMobile->password)) {
                            $byMobile->password = $mobile;
                        }
                        $byMobile->save();
                        $success++;
                        continue;
                    }

                    $failed++;
                    $errors[] = [
                        'name' => $item['name'],
                        'code' => $item['code'],
                        'error' => 'شماره موبایل تکراری است',
                    ];
                    continue;
                }
            }

            $characters = '0123456789abcdefghijklmnopqrstuvwxyz';
            do {
                $referralId = '';
                for ($i = 0; $i < 4; $i++) {
                    $referralId .= $characters[random_int(0, strlen($characters) - 1)];
                }
            } while (Customer::where('referral_id', $referralId)->exists());

            try {
                $customer = new Customer();
                $customer->fname = $fullName;
                $customer->lname = '';
                $customer->name = $fullName;
                $customer->mobile = $mobile !== '' ? $mobile : null;
                $customer->active = true;
                $customer->moshtari_code = $item['code'];
                $customer->referral_id = $referralId;
                $customer->type = 2;
                if ($mobile !== '') {
                    $customer->password = $mobile;
                }
                $customer->save();
                $success++;
            } catch (\Throwable $e) {
                $failed++;
                $msg = $e->getMessage();
                if ($e instanceof UnprocessableEntityHttpException) {
                    $msg = $e->getMessage();
                } elseif ($e instanceof \Illuminate\Database\QueryException && (int) ($e->errorInfo[1] ?? 0) === 1062) {
                    $msg = 'شماره موبایل تکراری است';
                }
                $errors[] = ['name' => $item['name'], 'code' => $item['code'], 'error' => $msg];
            }
        }

        return response()->json([
            'ok' => true,
            'success' => $success,
            'failed' => $failed,
            'errors' => $errors,
        ]);
    }

    /**
     * حذف مشتریانِ خرابِ واردشده از زرین (نام خالی) برای پاک‌سازی import ناقص.
     * با dry_run=1 فقط تعداد و نمونه را نشان می‌دهد و چیزی حذف نمی‌کند.
     */
    public function rollbackImport(Request $request): \Illuminate\Http\JsonResponse
    {
        $baseQuery = fn () => Customer::whereNotNull('moshtari_code')
            ->where(function ($q) {
                $q->whereNull('name')->orWhere('name', '');
            });

        $count = $baseQuery()->count();
        $sample = $baseQuery()
            ->select('id', 'fname', 'name', 'mobile', 'moshtari_code', 'created_at')
            ->orderByDesc('id')
            ->limit(20)
            ->get();

        if ($request->boolean('dry_run')) {
            return response()->json([
                'dry_run' => true,
                'count' => $count,
                'sample' => $sample,
            ]);
        }

        $deleted = $baseQuery()->forceDelete();

        return response()->json([
            'ok' => true,
            'deleted' => $deleted,
        ]);
    }

    public function retrySanad($id)
    {
        $zarin = Zarin::with('customer')->findOrFail($id);
        $result = $this->sync()->retry($zarin);

        return response()->json($result, ($result['ok'] ?? false) ? 200 : 422);
    }

    public function pendingSummary(Request $request)
    {
        $customerId = $request->filled('customer_id') ? (int) $request->input('customer_id') : null;

        return response()->json($this->sync()->pendingSummary($customerId));
    }

    public function pendingDocs(Request $request)
    {
        $customerId = $request->filled('customer_id') ? (int) $request->input('customer_id') : null;
        $limit = max(1, min(500, (int) $request->input('limit', 200)));

        return response()->json([
            'rows' => $this->sync()->pendingDocs($customerId, $limit),
            'summary' => $this->sync()->pendingSummary($customerId),
        ]);
    }

    public function syncOne(Request $request)
    {
        $type = (string) $request->input('type', '');
        $id = (int) $request->input('id', 0);
        if ($id <= 0 || ! in_array($type, ['row', 'withdraw', 'order'], true)) {
            return response()->json(['ok' => false, 'message' => 'پارامتر نامعتبر'], 422);
        }

        $result = $this->sync()->syncOne($type, $id);

        return response()->json($result, ($result['ok'] ?? false) ? 200 : 422);
    }

    public function syncAllPending(Request $request)
    {
        $limit = max(1, min(200, (int) $request->input('limit', 80)));
        $customerId = $request->filled('customer_id') ? (int) $request->input('customer_id') : null;
        $result = $this->sync()->syncAllPending($limit, $customerId);

        return response()->json($result, ($result['ok'] ?? false) ? 200 : 422);
    }

    public function registerCustomer($customerId)
    {
        $customer = Customer::findOrFail($customerId);
        $result = $this->sync()->registerCustomer($customer);

        return response()->json($result, ($result['ok'] ?? false) ? 200 : 422);
    }

    private function resolveProductId(array $data, ?Zarin $existing = null): ?int
    {
        if (!empty($data['product']['id'])) {
            return (int) $data['product']['id'];
        }
        if (!empty($data['product_id'])) {
            return (int) $data['product_id'];
        }

        $orderId = $data['order']['id'] ?? ($existing->order_id ?? null);
        if ($orderId) {
            $order = Order::find($orderId);
            if ($order && !empty($order->product_id)) {
                return (int) $order->product_id;
            }
        }

        return null;
    }

    public function storeTrade($data, ?Zarin $existing = null)
    {
        if (empty($data['customer_id']) && $existing && $existing->order_id) {
            $order = Order::find($existing->order_id);
            if ($order) {
                $data = array_merge($data, [
                    'customer_id' => $existing->customer_id,
                    'amount' => $existing->amount,
                    'direction' => $order->direction,
                    'price' => $order->price,
                    'total_price' => $order->total_price,
                    'pay_at' => $existing->date,
                    'product' => [
                        'id' => $order->product_id,
                        'metal_id' => $existing->type === 'طلا' ? 1 : 2,
                    ],
                    'product_id' => $order->product_id ? (int) $order->product_id : null,
                    'order' => ['id' => $existing->order_id, 'product_id' => $order->product_id],
                ]);
            }
        }

        if (!isset($data['customer_id']) || !isset($data['amount'])) {
            return request()->expectsJson()
                ? response()->json(['error' => 'Data missing: customer_id or amount'], 422)
                : false;
        }

        $mapper = app(AccountingProductDocMapper::class);
        $product = $mapper->resolveProductFromPayload($data);
        if ($product && $mapper->shouldSkip($product)) {
            return false;
        }

        $customer = Customer::where('id', $data['customer_id'])->first();
        $accountOverride = trim((string) ($data['accounting_account_code'] ?? ''));
        $isColleagueLeg = ! empty($data['colleague_leg']) && $accountOverride !== '';

        if (! $isColleagueLeg) {
            if ($customer && ($customer->moshtari_code === null)) {
                $this->createCustomerInZarin($customer->id);
                $customer = Customer::where('id', $data['customer_id'])->first();
            }

            if (!$customer || empty($customer->moshtari_code)) {
                return false;
            }
        } elseif (! $customer) {
            return false;
        }

        $accountCustomer = $customer;
        if ($isColleagueLeg) {
            $accountCustomer = clone $customer;
            $accountCustomer->moshtari_code = $accountOverride;
        }

        $rawAmount = (float) $data['amount'];
        $count = $mapper->accountingQty($product, $rawAmount, $data);
        $vazn = $mapper->accountingWeight($product, $rawAmount, $data);
        $isBuy = (int) ($data['direction'] ?? 0) === 1;
        $orderId = is_object($data['order'] ?? null)
            ? ($data['order']->id ?? null)
            : ($data['order']['id'] ?? ($existing->order_id ?? null));
        $title = $mapper->productTitle($product);
        $action = $isBuy ? 'خرید' : 'فروش';
        $sharh = trim((string) ($data['sharh_override'] ?? ''));
        if ($sharh === '') {
            $sharh = trim($title !== '' ? "{$action} {$title}" : "{$action} {$mapper->kindLabel($mapper->resolveKind($product))}");
        }
        $syncAmount = $mapper->isCountDoc($product) ? $count : $vazn;
        $uidSource = $orderId ?? null;
        if (!empty($data['line'])) {
            $uidSource = ($orderId ?? '0') . 'L' . (int) $data['line'];
        }
        if ($isColleagueLeg) {
            $uidSource = ($uidSource ?? '0') . 'C';
        }

        $data['handler'] = 'storeTrade';
        if ($existing && empty($existing->data)) {
            $existing->update(['data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT)]);
        }
        $zarin = $existing ?? Zarin::create([
            'customer_id' => $customer->id,
            'desc' => $sharh,
            'amount' => $syncAmount,
            'order_id' => $orderId,
            'date' => $data['pay_at'] ?? Carbon::now(),
            'type' => $mapper->zarinSyncTypeLabel($product),
            'created_at' => Carbon::now(),
            'data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT),
        ]);
        if ($existing) {
            $existing->update([
                'type' => $mapper->zarinSyncTypeLabel($product),
                'desc' => $sharh,
                'amount' => $syncAmount,
            ]);
        }

        $uidKind = $isColleagueLeg ? '11' : '10';

        try {
            if ($mapper->isCountDoc($product)) {
                $fi = (float) ($data['price'] ?? 0);
                if ($count > 0) {
                    if (!empty($data['total_price'])) {
                        $fi = ((float) $data['total_price']) / $count;
                    } elseif ($fi > 0 && abs($vazn - $count) > 0.0001) {
                        $fi = $fi * ($vazn / $count);
                    }
                }
                $result = $this->postZarinCountDoc(
                    $zarin,
                    $data,
                    $accountCustomer,
                    $product,
                    $count,
                    $isBuy ? -1 : 1,
                    $fi,
                    $sharh,
                    $this->zarinUid($uidKind, $uidSource ?? $zarin->id)
                );
            } else {
                $result = $this->postZarinWeightDoc(
                    $zarin,
                    $data,
                    $accountCustomer,
                    $vazn,
                    $isBuy ? 'f' : 'k',
                    (float) ($data['price'] ?? 0),
                    $sharh,
                    $mapper->jensFelez($product) ?? 0,
                    $this->zarinUid($uidKind, $uidSource ?? $zarin->id)
                );
            }
        } catch (\Exception $e) {
            $this->sync()->markFailed($zarin, $e->getMessage());
            return $e->getMessage();
        }

        return $result;
    }

    // direction: 0 = daryaft az moshtari, 1 = pardakht be moshtari
    public function wallet($data, ?Zarin $existing = null)
    {
        if (empty($data['customer_id']) && $existing) {
            $data = array_merge($data, [
                'customer_id' => $existing->customer_id,
                'value' => $existing->amount,
                'direction' => str_contains((string) $existing->desc, 'برداشت') ? 1 : 0,
                'withdraw_id' => $existing->withdraw_id,
            ]);
        }

        if (!isset($data['customer_id']) || !isset($data['value'])) {
            return request()->expectsJson()
                ? response()->json(['error' => 'Data missing: customer_id or value'], 422)
                : false;
        }

        $customer = Customer::where('id', $data['customer_id'])->first();

        if ($customer && ($customer->moshtari_code === null)) {
            $this->createCustomerInZarin($customer->id);
            $customer = Customer::where('id', $data['customer_id'])->first();
        }

        if (!$customer || empty($customer->moshtari_code)) {
            return false;
        }

        $data['handler'] = 'wallet';
        $isDeposit = (int) ($data['direction'] ?? 0) === 0;
        $sharh = self::accountingWalletDesc($isDeposit, $data['note'] ?? null);
        $zarin = $existing ?? Zarin::create([
            'customer_id' => $customer->id,
            'desc' => $sharh,
            'amount' => $data['value'],
            'type' => 'ريال',
            'date' => Carbon::now(),
            'created_at' => Carbon::now(),
            'withdraw_id' => $data['withdraw_id'] ?? null,
            'data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT),
        ]);

        if ($existing && empty($existing->data)) {
            $existing->update(['data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT)]);
        }

        $prices = $this->lastPriceData();
        $isWithdraw = (int) ($data['direction'] ?? 0) === 1;
        $mazaneh = $isWithdraw ? (int) ($prices['sell'] ?? 0) : (int) ($prices['buy'] ?? 0);
        if ($mazaneh <= 0) {
            $mazaneh = 1;
        }

        $uidSource = $data['withdraw_id'] ?? $zarin->id;

        try {
            $http = $this->zarinRequest([
                'kind' => 'pooli',
                'radif' => 1,
                'korf' => $isWithdraw ? 'f' : 'k',
                'poolorvazn' => 'pool',
                'meghdar' => $data['value'],
                'fi' => $mazaneh,
                'hesab' => $customer->moshtari_code,
                'sharh' => $sharh,
                'ayar' => '750',
                'movaghat' => '',
                'idFactor' => '',
                'uid' => $this->zarinUid('20', $uidSource),
            ]);

            if (!$http) {
                $this->sync()->markFailed($zarin, null, 'تنظیمات زرین کامل نیست');
                return 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.';
            }

            [$response, $httpError] = $this->zarinDecodeResponse($http);
            if ($httpError) {
                $this->sync()->markFailed($zarin, $response ?? $httpError, $httpError);
                return false;
            }

            Log::info('Zarin wallet response', [
                'data' => $data,
                'response' => $response ?? null,
            ]);
        } catch (\Exception $e) {
            $this->sync()->markFailed($zarin, $e->getMessage());
            return $e->getMessage();
        }

        if ($this->sync()->responseOk(is_array($response) ? $response : [])) {
            $this->sync()->markSuccess($zarin, is_array($response) ? $response : [], $data);
            return $data;
        }

        $this->sync()->markFailed($zarin, $response, 'ثبت سند ریالی در زرین ناموفق بود');
        return false;
    }

    /**
     * پاداش معرفی — همیشه روی حساب معرف (نه کاربر تازه‌ثبت‌نام‌شده).
     */
    public function referrerGoldReward(Customer $invitedCustomer, float $gold, string $desc = 'پاداش معرفی')
    {
        $referrer = $invitedCustomer->referrer();
        if (!$referrer) {
            return false;
        }

        return $this->goldReward([
            'customer_id' => $referrer->id,
            'value' => $gold,
            'desc' => $desc,
        ]);
    }

    /**
     * پاداش/هدیه طلایی — سند وزنی با korf=f (هدیه به مشتری).
     */
    public function goldReward($data, ?Zarin $existing = null)
    {
        if (empty($data['customer_id']) && $existing) {
            $data = array_merge($data, [
                'customer_id' => $existing->customer_id,
                'value' => $existing->amount,
                'desc' => $existing->desc,
            ]);
        }

        if (!isset($data['customer_id'], $data['value'])) {
            return request()->expectsJson()
                ? response()->json(['error' => 'Data missing: customer_id or value'], 422)
                : false;
        }

        $customer = Customer::where('id', $data['customer_id'])->first();
        if (!$customer) {
            return false;
        }

        if ($customer->moshtari_code === null) {
            $this->createCustomerInZarin($customer->id);
            $customer = Customer::where('id', $data['customer_id'])->first();
        }

        if (!$customer || empty($customer->moshtari_code)) {
            return false;
        }

        $amount = abs((float) $data['value']);
        $desc = !empty($data['desc']) ? (string) $data['desc'] : 'پاداش';

        $data['handler'] = 'goldReward';
        $zarin = $existing ?? Zarin::create([
            'customer_id' => $customer->id,
            'desc' => $desc,
            'amount' => $amount,
            'date' => Carbon::now(),
            'type' => 'طلا',
            'created_at' => Carbon::now(),
            'data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT),
        ]);

        if ($existing && empty($existing->data)) {
            $existing->update(['data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT)]);
        }

        $prices = $this->lastPriceData();
        $mazaneh = (int) ($prices['buy'] ?? 0);
        if ($mazaneh <= 0) {
            $mazaneh = 1;
        }

        try {
            $http = $this->zarinRequest([
                'kind' => 'pooli',
                'radif' => 1,
                'korf' => 'f',
                'poolorvazn' => 'vazn',
                'meghdar' => $amount,
                'fi' => $mazaneh,
                'hesab' => $customer->moshtari_code,
                'sharh' => $desc,
                'ayar' => '750',
                'movaghat' => '',
                'idFactor' => '',
                'uid' => $this->zarinUid('50', $zarin->id),
            ]);

            if (!$http) {
                $this->sync()->markFailed($zarin, null, 'تنظیمات زرین کامل نیست');
                return 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.';
            }

            [$response, $httpError] = $this->zarinDecodeResponse($http);
            if ($httpError) {
                $this->sync()->markFailed($zarin, $response ?? $httpError, $httpError);
                return false;
            }
        } catch (\Exception $e) {
            $this->sync()->markFailed($zarin, $e->getMessage());
            return $e->getMessage();
        }

        if ($this->sync()->responseOk(is_array($response) ? $response : [])) {
            $this->sync()->markSuccess($zarin, is_array($response) ? $response : [], $data);
            return $data;
        }

        $this->sync()->markFailed($zarin, $response, 'ثبت پاداش طلایی در زرین ناموفق بود');
        return false;
    }

    // direction: 1 = واریز، 0 = برداشت
    public function walletGold($data, ?Zarin $existing = null)
    {
        if (empty($data['customer_id']) && $existing) {
            $data = array_merge($data, [
                'customer_id' => $existing->customer_id,
                'value' => $existing->amount,
                'direction' => str_contains((string) $existing->desc, 'برداشت') ? 0 : 1,
                'withdraw_id' => $existing->withdraw_id,
            ]);
            $payload = json_decode((string) ($existing->data ?? ''), true);
            if (is_array($payload)) {
                if (!empty($payload['product_id'])) {
                    $data['product_id'] = (int) $payload['product_id'];
                }
                if (!empty($payload['product']) && is_array($payload['product'])) {
                    $data['product'] = $payload['product'];
                }
            }
        }

        if (!isset($data['customer_id'], $data['value'])) {
            return request()->expectsJson()
                ? response()->json(['error' => 'Data missing: customer_id or value'], 422)
                : false;
        }

        $mapper = app(AccountingProductDocMapper::class);
        $product = $mapper->resolveProductFromPayload($data);
        if ($product && $mapper->shouldSkip($product)) {
            return false;
        }

        $customer = Customer::where('id', $data['customer_id'])->first();

        if ($customer && ($customer->moshtari_code === null)) {
            $this->createCustomerInZarin($customer->id);
            $customer = Customer::where('id', $data['customer_id'])->first();
        }

        if (!$customer || empty($customer->moshtari_code)) {
            return false;
        }

        $rawValue = (float) $data['value'];
        $count = $mapper->accountingQty($product, $rawValue, $data);
        $vazn = $mapper->accountingWeight($product, $rawValue, $data);
        $isDeposit = (int) ($data['direction'] ?? 1) === 1;
        $title = $mapper->productTitle($product);
        $sharh = self::accountingWalletDesc(
            $isDeposit,
            !empty($data['note']) ? (string) $data['note'] : (!empty($data['desc']) ? (string) $data['desc'] : null)
        );
        $data['note'] = $sharh;
        $data['handler'] = 'walletGold';
        $syncAmount = $mapper->isCountDoc($product) ? $count : $vazn;

        $zarin = $existing ?? Zarin::create([
            'customer_id' => $customer->id,
            'desc' => $sharh,
            'amount' => $syncAmount,
            'date' => Carbon::now(),
            'type' => $mapper->zarinSyncTypeLabel($product),
            'created_at' => Carbon::now(),
            'withdraw_id' => $data['withdraw_id'] ?? null,
            'data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT),
        ]);
        if ($existing) {
            $existing->update([
                'type' => $mapper->zarinSyncTypeLabel($product),
                'desc' => $sharh,
                'amount' => $syncAmount,
            ]);
        }

        if ($existing && empty($existing->data)) {
            $existing->update(['data' => json_encode($data, JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT)]);
        }

        $prices = $this->lastPriceData();
        $mazaneh = $isDeposit ? (int) ($prices['buy'] ?? 0) : (int) ($prices['sell'] ?? 0);
        if ($mazaneh <= 0) {
            $mazaneh = 1;
        }

        $uidSource = $data['withdraw_id'] ?? $zarin->id;

        try {
            if ($mapper->isCountDoc($product)) {
                $unitPrice = $mazaneh;
                if ($product && (float) ($product->amount ?? 0) > 0) {
                    $unitPrice = (int) round($mazaneh * (float) $product->amount);
                }
                if ($unitPrice <= 0) {
                    $unitPrice = $mazaneh;
                }

                return $this->postZarinCountDoc(
                    $zarin,
                    $data,
                    $customer,
                    $product,
                    $count,
                    $isDeposit ? -1 : 1,
                    (float) $unitPrice,
                    $sharh,
                    $this->zarinUid('21', $uidSource)
                );
            }

            return $this->postZarinWeightDoc(
                $zarin,
                $data,
                $customer,
                $vazn,
                $isDeposit ? 'f' : 'k',
                (float) $mazaneh,
                $sharh,
                $mapper->jensFelez($product) ?? 0,
                $this->zarinUid('21', $uidSource)
            );
        } catch (\Exception $e) {
            $this->sync()->markFailed($zarin, $e->getMessage());
            return $e->getMessage();
        }
    }

    /**
     * سند تعدادی زرین (سکه / شمش / گوی / مکعب).
     * در زرین همه با sabtSanadTedadi می‌روند؛ تفکیک فقط با idKar جداگانهٔ هر محصول است.
     */
    private function postZarinCountDoc(
        Zarin $zarin,
        array $data,
        Customer $customer,
        $product,
        float $tedad,
        int $parDar,
        float $fi,
        string $sharh,
        string $uid
    ) {
        if (!$product instanceof Product || empty($product->id)) {
            $this->sync()->markFailed($zarin, null, 'محصول برای سند تعدادی زرین مشخص نیست');
            return false;
        }

        if ($fi <= 0) {
            $fi = 1;
        }

        $retriedInvalidKar = false;

        while (true) {
            $kar = $this->ensureZarinKarForProduct($product, $retriedInvalidKar);
            if (empty($kar['ok']) || empty($kar['idKar'])) {
                $this->sync()->markFailed($zarin, $kar ?? null, $kar['message'] ?? 'کد کار زرین برای محصول یافت نشد');
                return false;
            }

            $idKar = (int) $kar['idKar'];
            $http = $this->zarinRequest([
                'kind' => 'sabtSanadTedadi',
                'idHesab' => $customer->moshtari_code,
                'idKar' => $idKar,
                'fi' => $fi,
                'tedad' => $tedad,
                'parDar' => $parDar,
                'sharh' => $sharh,
                'uid' => $uid,
            ]);

            if (!$http) {
                $this->sync()->markFailed($zarin, null, 'تنظیمات زرین کامل نیست');
                return 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.';
            }

            [$response, $httpError] = $this->zarinDecodeResponse($http);
            $diag = 'idKar=' . $idKar
                . ' noeKar=' . $this->zarinCountNoeKar()
                . ' goroheKar=' . $this->zarinDefaultGoroheKar()
                . ' product=' . ($product->title ?? '')
                . ' source=' . ($kar['source'] ?? '');

            if (
                !$retriedInvalidKar
                && $this->isInvalidZarinKarError($response, $httpError)
            ) {
                Log::warning('zarin sabtSanadTedadi invalid idKar, recreating', [
                    'diag' => $diag,
                    'response' => $response,
                    'httpError' => $httpError,
                ]);
                $this->clearProductZarinKar($product);
                $product->refresh();
                $retriedInvalidKar = true;
                continue;
            }

            if ($httpError) {
                $this->sync()->markFailed(
                    $zarin,
                    $response ?? $httpError,
                    $httpError . ' | ' . $diag
                );
                return false;
            }

            $flat = $this->extractResponseRow(is_array($response) ? $response : null);
            if ($this->sync()->responseOk(is_array($response) ? $response : []) || $this->sync()->responseOk($flat)) {
                $this->sync()->markSuccess($zarin, is_array($response) ? $response : $flat, $data);
                return $data;
            }

            if (
                !$retriedInvalidKar
                && $this->isInvalidZarinKarError($response)
            ) {
                Log::warning('zarin sabtSanadTedadi invalid idKar (HTTP 200), recreating', [
                    'diag' => $diag,
                    'response' => $response,
                ]);
                $this->clearProductZarinKar($product);
                $product->refresh();
                $retriedInvalidKar = true;
                continue;
            }

            $this->sync()->markFailed(
                $zarin,
                $response,
                'ثبت سند تعدادی در زرین ناموفق بود | ' . $diag
            );
            return false;
        }
    }

    /**
     * سند وزنی زرین (آبشده طلا/نقره).
     */
    private function postZarinWeightDoc(
        Zarin $zarin,
        array $data,
        Customer $customer,
        float $meghdar,
        string $korf,
        float $fi,
        string $sharh,
        int $jensFelez,
        string $uid
    ) {
        if ($fi <= 0) {
            $fi = 1;
        }

        $http = $this->zarinRequest([
            'kind' => 'pooli',
            'radif' => 1,
            'korf' => $korf,
            'poolorvazn' => 'vazn',
            'meghdar' => $meghdar,
            'fi' => $fi,
            'hesab' => $customer->moshtari_code,
            'sharh' => $sharh,
            'ayar' => $jensFelez === 2 ? '' : '750',
            'movaghat' => '',
            'idFactor' => '',
            'uid' => $uid,
        ]);

        if (!$http) {
            $this->sync()->markFailed($zarin, null, 'تنظیمات زرین کامل نیست');
            return 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.';
        }

        [$response, $httpError] = $this->zarinDecodeResponse($http);
        if ($httpError) {
            $this->sync()->markFailed($zarin, $response ?? $httpError, $httpError);
            return false;
        }

        $flat = $this->extractResponseRow(is_array($response) ? $response : null);
        if ($this->sync()->responseOk(is_array($response) ? $response : []) || $this->sync()->responseOk($flat)) {
            $this->sync()->markSuccess($zarin, is_array($response) ? $response : $flat, $data);
            return $data;
        }

        $this->sync()->markFailed($zarin, $response, 'ثبت سند وزنی در زرین ناموفق بود');
        return false;
    }

    public function createCustomerInZarin($customer_id)
    {
        $customer = Customer::findOrFail($customer_id);

        if ($customer->moshtari_code != null) {
            return $customer->moshtari_code;
        }

        $lock = Cache::lock('zarin:register-customer:' . $customer->id, 30);

        if (!$lock->get()) {
            $customer->refresh();

            if ($customer->moshtari_code != null) {
                return $customer->moshtari_code;
            }

            return 'ثبت مشتری در زرین در حال انجام است';
        }

        try {
            $customer->refresh();

            if ($customer->moshtari_code != null) {
                return $customer->moshtari_code;
            }

            $name = $customer->fname ?: ($customer->name ?? ('مشتری ' . $customer->id));
            $family = $customer->lname ?: '';
            $mobile = $customer->mobile ?? '';

            $params = [
                'kind' => 'addhesab',
                'name' => $name,
                'family' => $family,
                'tel' => $mobile,
                'mobile' => $mobile,
                'address' => trim(($customer->province ?? '') . ' ' . ($customer->city ?? '')) ?: 'ثبت نشده',
                'codePosti' => '0000000000',
                'nameG' => $this->zarinCustomerGroupName(),
                'gender' => in_array($customer->gender, ['اقای', 'آقای'], true) ? 'm' : ($customer->gender == 'خانم' ? 'f' : ''),
                'uid' => $this->zarinUid('40', $customer->id),
            ];

            try {
                $http = $this->zarinRequest($params);

                if (!$http) {
                    return 'تنظیمات زرین کامل نیست. zarin_api یا zarin_token تنظیم نشده است.';
                }

                [$response, $httpError] = $this->zarinDecodeResponse($http);
                if ($httpError) {
                    return $httpError;
                }

                $data = $this->extractResponseRow($response);
                $idHesab = $data['idHesab'] ?? null;

                if (!empty($idHesab)) {
                    $customer->moshtari_code = $idHesab;
                    $customer->save();

                    // int برگردان تا با پیام خطای string اشتباه نشود
                    return is_numeric($idHesab) ? (0 + $idHesab) : $idHesab;
                }

                $detail = $data['msg'] ?? $data['message'] ?? $data['detail'] ?? null;
                return $detail ? (string) $detail : 'zarin api error!!!';
            } catch (\Exception $e) {
                return $e->getMessage();
            }
        } finally {
            $lock->release();
        }
    }

    public function healthCheck()
    {
        $http = $this->zarinRequest([
            'kind' => 'version',
        ]);

        [$json, $error] = $this->zarinDecodeResponse($http);

        if ($error) {
            return response()->json([
                'ok' => false,
                'message' => $error,
                'body' => $json,
            ], 422);
        }

        return response()->json([
            'ok' => true,
            'version' => $json['version'] ?? null,
            'message' => $json['message'] ?? 'OK',
            'raw' => $json,
        ]);
    }
}