<?php

namespace App\Services;

use App\Http\Controllers\Admin\TahesabController;
use App\Http\Controllers\Controller;
use App\Models\Customer;
use App\Models\Order;
use App\Models\Setting;
use App\Models\TransactionsAdmin;
use App\Models\Withdraw;
use Rooyesh\Wallet\interfaces\TransactionInterface;
use Rooyesh\Wallet\interfaces\WalletInterface;
use Rooyesh\Wallet\models\Transaction;

class ReferralGiftService
{
    public function isDeferredToFirstOrder(): bool
    {
        return app(ConfigService::class)->getBool('referral_gift_on_first_order', false);
    }

    /**
     * پاداش معرف/معرف‌شونده هنگام ثبت‌نام یا تأیید احراز — مگر اینکه به اولین سفارش موکول شده باشد.
     */
    public function tryGiveOnRegistration(
        Customer $customer,
        ?Customer $referrer,
        bool $referrerGiftAllowed,
        bool $allowInvitedGiftWithoutReferrer = true
    ): void {
        if ($this->isDeferredToFirstOrder()) {
            return;
        }

        $this->depositGifts($customer, $referrer, $referrerGiftAllowed, $allowInvitedGiftWithoutReferrer);
    }

    /**
     * پاداش معرف/معرف‌شونده پس از اولین سفارش — فقط وقتی تنظیم referral_gift_on_first_order روشن است.
     */
    public function tryGiveOnFirstOrder(Customer $customer): void
    {
        if (!$this->isDeferredToFirstOrder()) {
            return;
        }

        $config = app(ConfigService::class);
        if ($config->getString('has_page_earn_money', 'false') !== 'true') {
            return;
        }

        if (Order::where('customer_id', $customer->id)->count() !== 1) {
            return;
        }

        $referrer = $customer->referrer();
        $referrerGiftAllowed = $this->resolveReferrerGiftPermission($referrer);

        $this->depositGifts($customer, $referrer, $referrerGiftAllowed, true);
    }

    public function resolveReferrerGiftPermission(?Customer $referrer): bool
    {
        if ($referrer === null) {
            return false;
        }

        $referralLimit = Setting::where('key', 'referral_limit')->first();
        $limitValue = $referralLimit->value ?? null;

        if (
            $referralLimit
            && $referralLimit->is_active
            && $limitValue !== null
            && $limitValue !== ''
            && is_numeric($limitValue)
        ) {
            $totalReferrals = Customer::where('referral_to_id', $referrer->referral_id)
                ->where('is_legal', '!=', 0)
                ->count();

            return $totalReferrals < (int) $limitValue;
        }

        return true;
    }

    private function depositGifts(
        Customer $customer,
        ?Customer $referrer,
        bool $referrerGiftAllowed,
        bool $allowInvitedGiftWithoutReferrer
    ): void {
        $config = app(ConfigService::class);
        $giftForInviter = (float) $config->get('gift_for_referrer', 0);
        $giftForInvited = (float) $config->get('gift_for_referral', 0);
        $companyName = $config->getString('name_fa');
        $companyUrl = $config->getString('app_url');

        if ($referrer && $referrerGiftAllowed && $giftForInviter > 0 && !$this->referrerGiftAlreadyGiven($customer, $referrer)) {
            $this->giveReferrerGift($customer, $referrer, $giftForInviter, $companyName, $companyUrl, $config);
        }

        $canGiveInvited = $giftForInvited > 0
            && !$this->invitedGiftAlreadyGiven($customer)
            && ($allowInvitedGiftWithoutReferrer || $referrer !== null);

        if ($canGiveInvited) {
            $this->giveInvitedGift($customer, $giftForInvited, $companyName, $companyUrl, $config);
        }
    }

    private function referrerGiftAlreadyGiven(Customer $invited, Customer $referrer): bool
    {
        return TransactionsAdmin::where('customer_id', $invited->id)
            ->where('customer_to_id', $referrer->id)
            ->where('note', 'پاداش بابت معرفی')
            ->exists();
    }

    private function invitedGiftAlreadyGiven(Customer $customer): bool
    {
        return TransactionsAdmin::where('customer_id', $customer->id)
            ->where('note', 'پاداش بابت ثبت نام')
            ->exists();
    }

    private function giveReferrerGift(
        Customer $customer,
        Customer $referrer,
        float $giftForInviter,
        string $companyName,
        string $companyUrl,
        ConfigService $config
    ): void {
        $withdraw = Withdraw::create([
            'user_id' => $customer->id,
            'customer_id' => $referrer->id,
            'cash' => 0,
            'gold' => $giftForInviter,
            'sts' => 5,
        ]);

        $walletInterface = new WalletInterface($referrer->id, 2);
        new TransactionInterface($walletInterface, [
            'cash' => 0,
            'gold' => $giftForInviter,
            'expire_at' => now(),
            'active' => true,
            'title' => 'پاداش بابت معرفی',
            'withdraw_id' => $withdraw->id,
            'start_at' => now(),
        ], 8, true, false);

        $transaction = Transaction::where('customer_id', $referrer->id)->latest()->first();
        TransactionsAdmin::create([
            'customer_id' => $customer->id,
            'customer_to_id' => $referrer->id,
            'user_id' => $customer->id,
            'wallet' => null,
            'transaction_id' => $transaction->id,
            'cash' => 0,
            'note' => 'پاداش بابت معرفی',
            'type' => 1,
            'gold' => $giftForInviter,
            'balance_cash' => 0,
            'withdraw_id' => $withdraw->id,
        ]);

        if ($config->isTahesabAccounting()) {
            try {
                app(TahesabController::class)->referrerGoldReward(
                    $customer,
                    $giftForInviter,
                    'پاداش بابت معرفی'
                );
            } catch (\Exception $e) {
                report($e);
            }
        }

        $currentGold = Controller::formatSmsGoldWeight((float) $walletInterface->wallet->refresh()->gold);
        $message = "سلام {$referrer->name} عزیز،\n\n{$giftForInviter} گرم طلا بابت معرفی {$customer->name} به حساب شما واریز شد.\nموجودی فعلی: {$currentGold} گرم.\n\nاطلاعات بیشتر: {$companyUrl}\n\nبا احترام،\n{$companyName}";
        Controller::Send($referrer->mobile, $message);
    }

    private function giveInvitedGift(
        Customer $customer,
        float $giftForInvited,
        string $companyName,
        string $companyUrl,
        ConfigService $config
    ): void {
        $withdraw = Withdraw::create([
            'user_id' => $customer->id,
            'customer_id' => $customer->id,
            'cash' => 0,
            'gold' => $giftForInvited,
            'sts' => 5,
        ]);

        $walletInterface = new WalletInterface($customer->id, 2);
        new TransactionInterface($walletInterface, [
            'cash' => 0,
            'gold' => $giftForInvited,
            'expire_at' => now(),
            'active' => true,
            'title' => 'پاداش بابت ثبت نام',
            'withdraw_id' => $withdraw->id,
            'start_at' => now(),
        ], 8, true, false);

        $transaction = Transaction::where('customer_id', $customer->id)->latest()->first();
        TransactionsAdmin::create([
            'customer_id' => $customer->id,
            'customer_to_id' => $customer->id,
            'user_id' => $customer->id,
            'wallet' => null,
            'transaction_id' => $transaction->id,
            'cash' => 0,
            'note' => 'پاداش بابت ثبت نام',
            'type' => 1,
            'gold' => $giftForInvited,
            'balance_cash' => 0,
            'withdraw_id' => $withdraw->id,
        ]);

        if ($config->isTahesabAccounting()) {
            try {
                app(TahesabController::class)->goldReward([
                    'customer_id' => $customer->id,
                    'value' => $giftForInvited,
                    'desc' => 'پاداش بابت ثبت نام',
                ]);
            } catch (\Exception $e) {
                report($e);
            }
        }

        $currentGold = Controller::formatSmsGoldWeight((float) $walletInterface->wallet->refresh()->gold);
        $message = "سلام {$customer->name} عزیز،\n\n{$giftForInvited} گرم طلا بابت ثبت نام به حساب شما واریز شد.\nموجودی فعلی: {$currentGold} گرم.\n\nاطلاعات بیشتر: {$companyUrl}\n\nبا احترام،\n{$companyName}";
        Controller::Send($customer->mobile, $message);
    }
}