<?php

namespace App\Http\Controllers\Admin;

use App\DB\Te\TableEngine;
use App\Http\Controllers\Controller;
use App\Models\SmsLedger;
use App\Models\SmsSendLog;
use App\Services\SmsBilling\SmsWalletService;
use App\Services\SmsBilling\SuperAdminSmsClient;
use Carbon\Carbon;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class SmsPanelController extends Controller
{
    private function sa(): SuperAdminSmsClient
    {
        return app(SuperAdminSmsClient::class);
    }

    private function useSuperAdmin(): bool
    {
        return $this->sa()->enabled();
    }

    private function abortSaUnavailable(): void
    {
        abort(502, 'ارتباط با کیف پول پیامک سوپرادمین برقرار نشد.');
    }

    /**
     * @param  array<string, mixed>  $chargeInfo
     * @return array{card_number: string, sheba: string, account_holder: string, note: string}
     */
    private function depositFromChargeInfo(array $chargeInfo): array
    {
        return [
            'card_number' => trim((string) ($chargeInfo['card'] ?? $chargeInfo['card_number'] ?? '')),
            'sheba' => trim((string) ($chargeInfo['iban'] ?? $chargeInfo['sheba'] ?? '')),
            'account_holder' => trim((string) ($chargeInfo['account_holder'] ?? $chargeInfo['accountHolder'] ?? '')),
            'note' => trim((string) ($chargeInfo['instruction'] ?? $chargeInfo['note'] ?? '')),
        ];
    }

    /** @param  array<string, string>  $deposit */
    private function depositHasAny(array $deposit): bool
    {
        foreach (['card_number', 'sheba', 'account_holder', 'note'] as $field) {
            if (trim((string) ($deposit[$field] ?? '')) !== '') {
                return true;
            }
        }

        return false;
    }

    /**
     * اگر سوپرادمین کارت/شبا خالی بدهد، دیفالت محلی را نگه دار — وگرنه هر رفرش هدر تنظیمات را خالی می‌کند.
     *
     * @param  array<string, mixed>|null  $chargeInfo
     * @return array{card_number: string, sheba: string, account_holder: string, note: string}
     */
    private function resolveDeposit(?array $chargeInfo): array
    {
        $fromSa = is_array($chargeInfo) ? $this->depositFromChargeInfo($chargeInfo) : [
            'card_number' => '',
            'sheba' => '',
            'account_holder' => '',
            'note' => '',
        ];
        $local = SmsWalletService::getDepositInfo();
        $out = [];
        foreach (['card_number', 'sheba', 'account_holder', 'note'] as $field) {
            $saVal = trim((string) ($fromSa[$field] ?? ''));
            $out[$field] = $saVal !== '' ? $saVal : $local[$field];
        }

        return $out;
    }

    /**
     * @param  array<string, mixed>  $data
     */
    private function mirrorLocalFromSa(array $data): void
    {
        try {
            $wallet = is_array($data['wallet'] ?? null) ? $data['wallet'] : $data;

            $balance = null;
            if (isset($wallet['balance'])) {
                $balance = (int) $wallet['balance'];
            } elseif (isset($data['balance'])) {
                $balance = (int) $data['balance'];
            }

            $price = null;
            if (isset($wallet['price_per_part'])) {
                $price = (int) $wallet['price_per_part'];
            } elseif (isset($data['price_per_part'])) {
                $price = (int) $data['price_per_part'];
            }

            $blocked = null;
            if (is_array($data['wallet'] ?? null) && array_key_exists('is_blocked', $wallet)) {
                $blocked = (bool) $wallet['is_blocked'];
            } elseif (array_key_exists('is_blocked', $data)) {
                $blocked = (bool) $data['is_blocked'];
            }

            if ($balance === null && $price === null && $blocked === null) {
                return;
            }

            app(SmsWalletService::class)->mirrorFromSuperAdmin($balance, $price, $blocked);

            if (isset($data['charge_info']) && is_array($data['charge_info'])) {
                $fromCharge = $this->depositFromChargeInfo($data['charge_info']);
                if ($this->depositHasAny($fromCharge)) {
                    SmsWalletService::setDepositInfo($fromCharge);
                }
            }
            if (isset($data['deposit']) && is_array($data['deposit'])) {
                if ($this->depositHasAny($data['deposit'])) {
                    SmsWalletService::setDepositInfo($data['deposit']);
                }
            }
        } catch (\Throwable $e) {
            report($e);
        }
    }

    public function overview()
    {
        if ($this->useSuperAdmin()) {
            $data = $this->sa()->overview();
            if ($data === null) {
                $this->abortSaUnavailable();
            }

            $charge = is_array($data['charge_info'] ?? null) ? $data['charge_info'] : [];
            $data['deposit'] = $this->resolveDeposit($charge);
            $this->mirrorLocalFromSa($data);

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

        $wallet = app(SmsWalletService::class)->getWallet();

        $monthStart = Carbon::now()->startOfMonth();

        $monthStats = SmsSendLog::query()
            ->where('created_at', '>=', $monthStart)
            ->selectRaw('COALESCE(SUM(parts), 0) as total_parts, COALESCE(SUM(total_amount), 0) as total_amount, COUNT(*) as total_messages')
            ->first();

        $todayStats = SmsSendLog::query()
            ->whereDate('created_at', Carbon::today())
            ->selectRaw('COALESCE(SUM(parts), 0) as total_parts, COALESCE(SUM(total_amount), 0) as total_amount, COUNT(*) as total_messages')
            ->first();

        return response()->json([
            'wallet' => [
                'balance' => (int) $wallet->balance,
                'price_per_part' => (int) $wallet->price_per_part,
                'is_blocked' => (bool) $wallet->is_blocked,
                'alert_days_sent' => (int) $wallet->alert_days_sent,
                'last_alert_date' => $wallet->last_alert_date?->toDateString(),
            ],
            'deposit' => SmsWalletService::getDepositInfo(),
            'stats' => [
                'today' => [
                    'parts' => (int) ($todayStats->total_parts ?? 0),
                    'amount' => (int) ($todayStats->total_amount ?? 0),
                    'messages' => (int) ($todayStats->total_messages ?? 0),
                ],
                'month' => [
                    'parts' => (int) ($monthStats->total_parts ?? 0),
                    'amount' => (int) ($monthStats->total_amount ?? 0),
                    'messages' => (int) ($monthStats->total_messages ?? 0),
                ],
            ],
        ]);
    }

    /**
     * خلاصه سبک کیف پول برای نمایش «اعتبار پیامک» در هدر؛ برای همه ادمین‌ها.
     * اگر سوپرادمین قطع باشد، روی آینهٔ محلی برمی‌گردیم — نه 502 (ویجت هدر نباید بترکد).
     */
    public function walletSummary()
    {
        if (! SmsWalletService::isBillingEnabled()) {
            return response()->json([
                'enabled' => false,
                'balance' => 0,
                'is_blocked' => false,
                'deposit' => SmsWalletService::getDepositInfo(),
            ]);
        }

        if ($this->useSuperAdmin()) {
            $balanceData = $this->sa()->balance();
            $charge = $this->sa()->chargeInfo();

            if ($balanceData !== null) {
                $deposit = $this->resolveDeposit(is_array($charge) ? $charge : null);

                $this->mirrorLocalFromSa(array_merge($balanceData, [
                    'deposit' => $deposit,
                ]));

                return response()->json([
                    'enabled' => true,
                    'balance' => (int) ($balanceData['balance'] ?? 0),
                    'is_blocked' => (bool) ($balanceData['is_blocked'] ?? false),
                    'deposit' => $deposit,
                    'source' => 'superadmin',
                    'sa_partial' => $charge === null,
                ]);
            }

            // SA فعال است ولی balance نرسید — آخرین آینهٔ محلی
            return response()->json($this->localWalletSummaryPayload('local_fallback'));
        }

        return response()->json($this->localWalletSummaryPayload('local'));
    }

    /**
     * @return array{enabled: bool, balance: int, is_blocked: bool, deposit: array, source: string}
     */
    private function localWalletSummaryPayload(string $source): array
    {
        $balance = 0;
        $isBlocked = false;

        if (SmsWalletService::isBillingOperational()) {
            $wallet = app(SmsWalletService::class)->getWallet();
            $balance = (int) $wallet->balance;
            $isBlocked = (bool) $wallet->is_blocked;
        }

        return [
            'enabled' => true,
            'balance' => $balance,
            'is_blocked' => $isBlocked,
            'deposit' => SmsWalletService::getDepositInfo(),
            'source' => $source,
        ];
    }

    /**
     * ویرایش اطلاعات واریز (کارت/شبا/نام/متن) — فقط سوپرادمین پنل پیامک.
     */
    public function updateDepositInfo(Request $request)
    {
        $data = $request->validate([
            'card_number' => 'nullable|string|max:50',
            'sheba' => 'nullable|string|max:50',
            'account_holder' => 'nullable|string|max:191',
            'note' => 'nullable|string|max:2000',
        ]);

        if ($this->useSuperAdmin()) {
            $result = $this->sa()->updateChargeInfo([
                'card' => (string) ($data['card_number'] ?? ''),
                'iban' => (string) ($data['sheba'] ?? ''),
                'account_holder' => (string) ($data['account_holder'] ?? ''),
                'instruction' => (string) ($data['note'] ?? ''),
            ]);
            if ($result === null) {
                $this->abortSaUnavailable();
            }

            $charge = is_array($result['charge_info'] ?? null) ? $result['charge_info'] : [];
            $deposit = $this->depositFromChargeInfo($charge);
            $this->mirrorLocalFromSa(array_merge($result, ['deposit' => $deposit]));

            return response()->json([
                'message' => (string) ($result['message'] ?? 'اطلاعات واریز به‌روزرسانی شد.'),
                'deposit' => $deposit,
                'source' => 'superadmin',
            ]);
        }

        $deposit = SmsWalletService::setDepositInfo($data);

        return response()->json([
            'message' => 'اطلاعات واریز به‌روزرسانی شد.',
            'deposit' => $deposit,
        ]);
    }

    public function charge(Request $request)
    {
        $data = $request->validate([
            'amount' => 'required|integer|min:1',
            'note' => 'nullable|string|max:500',
        ]);

        if ($this->useSuperAdmin()) {
            $result = $this->sa()->charge((int) $data['amount'], $data['note'] ?? null);
            if ($result === null) {
                $this->abortSaUnavailable();
            }

            $this->mirrorLocalFromSa($result);

            return response()->json([
                'message' => (string) ($result['message'] ?? 'کیف پول با موفقیت شارژ شد.'),
                'balance' => (int) ($result['balance'] ?? 0),
                'source' => 'superadmin',
            ]);
        }

        $wallet = app(SmsWalletService::class)->charge(
            (int) $data['amount'],
            auth()->id(),
            $data['note'] ?? null
        );

        return response()->json([
            'message' => 'کیف پول با موفقیت شارژ شد.',
            'balance' => (int) $wallet->balance,
        ]);
    }

    public function updatePrice(Request $request)
    {
        $data = $request->validate([
            'price_per_part' => 'required|integer|min:0',
        ]);

        if ($this->useSuperAdmin()) {
            $result = $this->sa()->updatePrice((int) $data['price_per_part']);
            if ($result === null) {
                $this->abortSaUnavailable();
            }

            $this->mirrorLocalFromSa($result);

            return response()->json([
                'message' => (string) ($result['message'] ?? 'قیمت هر پارت به‌روزرسانی شد.'),
                'price_per_part' => (int) ($result['price_per_part'] ?? 0),
                'source' => 'superadmin',
            ]);
        }

        $wallet = app(SmsWalletService::class)->updatePricePerPart((int) $data['price_per_part']);

        return response()->json([
            'message' => 'قیمت هر پارت به‌روزرسانی شد.',
            'price_per_part' => (int) $wallet->price_per_part,
        ]);
    }

    public function updateBlock(Request $request)
    {
        $data = $request->validate([
            'is_blocked' => 'required|boolean',
        ]);

        if ($this->useSuperAdmin()) {
            $result = $this->sa()->setBlocked((bool) $data['is_blocked']);
            if ($result === null) {
                $this->abortSaUnavailable();
            }

            $this->mirrorLocalFromSa($result);

            return response()->json([
                'message' => (string) ($result['message'] ?? ''),
                'is_blocked' => (bool) ($result['is_blocked'] ?? false),
                'source' => 'superadmin',
            ]);
        }

        $wallet = app(SmsWalletService::class)->setBlocked((bool) $data['is_blocked']);

        return response()->json([
            'message' => $wallet->is_blocked ? 'ارسال پیامک مسدود شد.' : 'ارسال پیامک فعال شد.',
            'is_blocked' => (bool) $wallet->is_blocked,
        ]);
    }

    public function logsTable(Request $request)
    {
        if ($this->useSuperAdmin()) {
            $data = $this->sa()->logsTable($request->all());
            if ($data === null) {
                $this->abortSaUnavailable();
            }

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

        $records = SmsSendLog::query()->orderByDesc('id');

        if ($request->filled('from_date')) {
            $records->whereDate('created_at', '>=', $request->input('from_date'));
        }

        if ($request->filled('to_date')) {
            $records->whereDate('created_at', '<=', $request->input('to_date'));
        }

        $table = TableEngine::create($records, $request->all())
            ->initSearch(['receiver', 'body', 'provider', 'source'])
            ->select([
                'id',
                'receiver',
                'body',
                'parts',
                'price_per_part',
                'total_amount',
                'provider',
                'source',
                'is_alert',
                'created_at',
            ]);

        return response()->json($table->export());
    }

    public function ledgerTable(Request $request)
    {
        if ($this->useSuperAdmin()) {
            $data = $this->sa()->ledgerTable($request->all());
            if ($data === null) {
                $this->abortSaUnavailable();
            }

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

        $records = SmsLedger::query()->orderByDesc('id');

        if ($request->filled('from_date')) {
            $records->whereDate('created_at', '>=', $request->input('from_date'));
        }

        if ($request->filled('to_date')) {
            $records->whereDate('created_at', '<=', $request->input('to_date'));
        }

        $table = TableEngine::create($records, $request->all())
            ->initSearch(['type', 'note'])
            ->select([
                'id',
                'type',
                'amount',
                'balance_after',
                'price_per_part',
                'parts',
                'note',
                'created_by',
                'created_at',
            ]);

        return response()->json($table->export());
    }

    public function report(Request $request)
    {
        $from = $request->input('from_date', Carbon::now()->startOfMonth()->toDateString());
        $to = $request->input('to_date', Carbon::now()->toDateString());

        if ($this->useSuperAdmin()) {
            $data = $this->sa()->report($from, $to);
            if ($data === null) {
                $this->abortSaUnavailable();
            }

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

        $summary = SmsSendLog::query()
            ->whereDate('created_at', '>=', $from)
            ->whereDate('created_at', '<=', $to)
            ->selectRaw('COALESCE(SUM(parts), 0) as total_parts, COALESCE(SUM(total_amount), 0) as total_amount, COUNT(*) as total_messages')
            ->first();

        $byProvider = SmsSendLog::query()
            ->whereDate('created_at', '>=', $from)
            ->whereDate('created_at', '<=', $to)
            ->select('provider', DB::raw('COUNT(*) as messages'), DB::raw('SUM(parts) as parts'), DB::raw('SUM(total_amount) as amount'))
            ->groupBy('provider')
            ->get();

        $wallet = app(SmsWalletService::class)->getWallet();

        return response()->json([
            'from_date' => $from,
            'to_date' => $to,
            'balance' => (int) $wallet->balance,
            'summary' => [
                'parts' => (int) ($summary->total_parts ?? 0),
                'amount' => (int) ($summary->total_amount ?? 0),
                'messages' => (int) ($summary->total_messages ?? 0),
            ],
            'by_provider' => $byProvider,
        ]);
    }

    public function chargeReport(Request $request)
    {
        $request->validate([
            'from_date' => 'nullable|date',
            'to_date' => 'nullable|date',
        ]);

        if ($this->useSuperAdmin()) {
            $data = $this->sa()->chargeReport(
                $request->input('from_date'),
                $request->input('to_date')
            );
            if ($data === null) {
                $this->abortSaUnavailable();
            }

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

        $baseQuery = SmsLedger::query()->where('type', SmsWalletService::TYPE_CHARGE);

        if ($request->filled('from_date')) {
            $baseQuery->whereDate('created_at', '>=', $request->input('from_date'));
        }

        if ($request->filled('to_date')) {
            $baseQuery->whereDate('created_at', '<=', $request->input('to_date'));
        }

        $summary = (clone $baseQuery)
            ->selectRaw('COUNT(*) as total_charges, COALESCE(SUM(amount), 0) as total_amount')
            ->first();

        $items = (clone $baseQuery)
            ->orderByDesc('created_at')
            ->select([
                'id',
                'amount',
                'balance_after',
                'note',
                'created_by',
                'created_at',
            ])
            ->get();

        return response()->json([
            'from_date' => $request->input('from_date'),
            'to_date' => $request->input('to_date'),
            'summary' => [
                'charges' => (int) ($summary->total_charges ?? 0),
                'amount' => (int) ($summary->total_amount ?? 0),
            ],
            'items' => $items,
        ]);
    }
}