<?php

namespace App\Services\Admin\Product;

use App\Repositories\Admin\Product\AdminFeeRepository;
use App\Services\Admin\AdminAuditService;
use Illuminate\Support\Facades\DB;

final class AdminFeeService
{
    public function __construct(
        private readonly AdminFeeRepository $repo,
        private readonly AdminAuditService $audit,
    ) {}

    public function getFeeData(): array
    {
        return [
            'paymentMethods' => $this->repo->getPaymentMethods(),
            'buybackPolicy'  => $this->repo->getBuybackPolicy(),
        ];
    }

    public function updateBuybackPolicy(array $input, int $actorAdminId, string $ip, string $ua): array
    {
        try {
            $before = $this->repo->getBuybackPolicy();

            $data = [
                'customer_fee_rate' => (float)$input['customer_fee_rate'],
                'bank_fee_type'     => $input['bank_fee_type'],
                'bank_fee_value'    => (float)$input['bank_fee_value'],
            ];

            $this->repo->updateBuybackPolicy($data);

            $this->audit->log(
                actorAdminId: $actorAdminId,
                action: 'admin.fee.buyback.update',
                targetType: 'buyback_policy',
                targetId: 1,
                before: (array)$before,
                after: array_merge((array)$before, $data),
                ip: $ip,
                ua: $ua,
            );

            return ['ok' => true, 'message' => '매입(출금) 정책이 업데이트되었습니다.'];
        } catch (\Throwable $e) {
            return ['ok' => false, 'message' => '출금 정책 저장 중 오류가 발생했습니다.'];
        }
    }

    public function storePaymentMethod(array $input, int $actorAdminId, string $ip, string $ua): array
    {
        try {
            return DB::transaction(function () use ($input, $actorAdminId, $ip, $ua) {
                $data = [
                    'code'              => strtoupper(trim($input['code'])),
                    'name'              => trim($input['name']),
                    'display_name'      => trim($input['display_name']),
                    'customer_fee_rate' => (float)$input['customer_fee_rate'],
                    'pg_fee_rate'       => (float)$input['pg_fee_rate'],
                    'is_active'         => (int)$input['is_active'],
                    'sort_order'        => 0, // 기본값
                ];

                $newId = $this->repo->insertPaymentMethod($data);

                $this->audit->log($actorAdminId, 'admin.fee.payment.create', 'payment_method', $newId, null, $data, $ip, $ua);
                return ['ok' => true, 'message' => '결제 수단이 등록되었습니다.'];
            });
        } catch (\Throwable $e) {
            return ['ok' => false, 'message' => '결제수단 코드가 중복되거나 저장 오류가 발생했습니다.'];
        }
    }

    public function updatePaymentMethod(int $id, array $input, int $actorAdminId, string $ip, string $ua): array
    {
        try {
            return DB::transaction(function () use ($id, $input, $actorAdminId, $ip, $ua) {
                $before = $this->repo->findPaymentMethod($id);
                if (!$before) return ['ok' => false, 'message' => '결제 수단을 찾을 수 없습니다.'];

                $data = [
                    'name'              => trim($input['name']),
                    'display_name'      => trim($input['display_name']),
                    'customer_fee_rate' => (float)$input['customer_fee_rate'],
                    'pg_fee_rate'       => (float)$input['pg_fee_rate'],
                    'is_active'         => (int)$input['is_active'],
                ];

                $this->repo->updatePaymentMethod($id, $data);

                $this->audit->log($actorAdminId, 'admin.fee.payment.update', 'payment_method', $id, (array)$before, array_merge((array)$before, $data), $ip, $ua);
                return ['ok' => true, 'message' => '결제 수단이 수정되었습니다.'];
            });
        } catch (\Throwable $e) {
            return ['ok' => false, 'message' => '수정 중 오류가 발생했습니다.'];
        }
    }

    public function updatePaymentSort(array $ids, int $actorAdminId): array
    {
        try {
            DB::transaction(function () use ($ids) {
                foreach ($ids as $index => $id) {
                    $this->repo->updatePaymentSortOrder((int)$id, $index + 1);
                }
            });
            return ['ok' => true];
        } catch (\Throwable $e) {
            return ['ok' => false, 'message' => '정렬 중 오류가 발생했습니다.'];
        }
    }

    public function deletePaymentMethod(int $id, int $actorAdminId, string $ip, string $ua): array
    {
        $before = $this->repo->findPaymentMethod($id);
        if (!$before) return ['ok' => false, 'message' => '결제 수단을 찾을 수 없습니다.'];

        $this->repo->deletePaymentMethod($id);
        $this->audit->log($actorAdminId, 'admin.fee.payment.delete', 'payment_method', $id, (array)$before, null, $ip, $ua);

        return ['ok' => true, 'message' => '삭제되었습니다.'];
    }
}