<?php

namespace ThirdParty\Urs\Webhook;

use App\Module\ThirdParty\Models\ThirdPartyService as ServiceModel;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;

/**
 * URS转出 检查Webhook处理器
 *
 * 专门处理余额检查相关的Webhook通知
 */
class UrsCheckWebhook extends WebhookReceiver
{

    /**
     * 构造函数
     *
     * @param string $serviceCode 服务代码
     * @param Request $request 请求对象
     * @param ServiceModel $service 服务配置对象
     */
    public function __construct(string $serviceCode, Request $request, ServiceModel $service)
    {
        parent::__construct($serviceCode, $request, $service);
    }

    /**
     * 处理余额检查通知
     *
     * @param string $action 操作类型（固定为check）
     * @param Request $request 请求对象
     * @return array
     * @throws \Exception
     */
    protected function handler(string $action, Request $request): array
    {
        // 验证操作类型
        if ($action !== 'check') {
            throw new \Exception("此处理器只能处理check操作，当前操作: {$action}");
        }

        // 验证必需字段
        $this->validateCheckRequest($request);

        // 处理余额检查通知
        return $this->processCheck($request);
    }

    /**
     * 验证余额检查请求
     *
     * @param Request $request 请求对象
     * @throws \Exception
     */
    protected function validateCheckRequest(Request $request): void
    {
        $requiredFields = [ 'user_id', 'amount' ];

        foreach ($requiredFields as $field) {
            if (!$request->has($field)) {
                throw new \Exception("缺少必需字段: {$field}");
            }
        }

        // 验证用户ID
        $userId = $request->input('user_id');
        if (!is_numeric($userId) || $userId <= 0) {
            throw new \Exception('用户ID格式无效');
        }

        // 验证金额
        $amount = $request->input('amount');
        if (!is_numeric($amount) || $amount < 0) {
            throw new \Exception('提取金额不能为负数');
        }
    }

    /**
     * 处理余额检查的核心逻辑
     *
     * @param Request $request 请求对象
     * @return array
     * @throws \Exception
     */
    protected function processCheck(Request $request): array
    {
        try {
            // 获取请求参数
            $userId = $request->input('user_id');
            $amount = $request->input('amount');

            /**
             * 三方应用ID
             *
             * @var int $thirdPartyAppId
             */
            $thirdPartyAppId = $this->service->id;

            // 1. 根据URS用户ID获取农场用户ID
            $farmUserId = \App\Module\UrsPromotion\Services\UrsUserMappingService::getFarmUserId($userId);

            if (!$farmUserId) {
                Log::warning("URS余额检查失败：未找到用户映射关系", [
                    'urs_user_id' => $userId,
                    'amount'      => $amount,
                ]);

                return [
                    'check'           => false,
                    'diamond_balance' => '0.0000',
                    'principal_total' => $amount,
                    'fee_total'       => '0.0000',
                    'required_total'  => $amount,
                    'message'         => '用户未进入农场系统'
                ];
            }

            // 2. 获取用户钻石余额
            $userFundService         = new \App\Module\Fund\Services\FundService($farmUserId, 2); // 2是钻石的fund_id
            $diamondBalance          = $userFundService->balance();
            $diamondBalanceFormatted = number_format($diamondBalance, 4); // 直接格式化，无需转换

            // 3. 特殊处理：如果金额为0，只返回余额信息，不计算手续费
            if (bccomp($amount, '0', 4) === 0) {
                Log::info("URS余额查询（金额为0）", [
                    'urs_user_id'     => $userId,
                    'farm_user_id'    => $farmUserId,
                    'diamond_balance' => $diamondBalanceFormatted,
                ]);

                return [
                    'check'           => true,
                    'diamond_balance' => $diamondBalanceFormatted,
                    'principal_total' => '0.0000',
                    'fee_total'       => '0.0000',
                    'required_total'  => '0.0000',
                    'message'         => '余额查询成功'
                ];
            }


            // 6. 使用TransferThirdPartyService计算提取费用，传递用户ID以便URS推广模块计算正确的手续费率
            $feeDto = \App\Module\Transfer\Services\TransferThirdPartyService::calculateWithdrawFeeWithContext(
                $thirdPartyAppId,
                $amount,
                [ 'user_id' => $farmUserId ] // 传递农场用户ID，让URS推广模块能够根据房屋等级和达人等级计算手续费
            );

            if ($feeDto->hasError) {
                Log::warning("URS余额检查失败：无法计算手续费", [
                    'urs_user_id'     => $userId,
                    'farm_user_id'    => $farmUserId,
                    'amount'          => $amount,
                    'internal_amount' => $feeDto->feeRate,
                    'error'           => $feeDto->errorMessage
                ]);

                return [
                    'check'           => false,
                    'diamond_balance' => $diamondBalanceFormatted,
                    'principal_total' => $feeDto->actualAmount,
                    'fee_total'       => '0.0000',
                    'required_total'  => $feeDto->totleAmount,
                    'message'         => $feeDto->errorMessage
                ];
            }

            // 6. 检查余额是否足够（直接比较小数值）
            $isAllowed = bccomp($diamondBalance, $feeDto->totleAmount, 10) >= 0;

            Log::info("URS余额检查完成", [
                'urs_user_id'     => $userId,
                'farm_user_id'    => $farmUserId,
                'amount'          => $amount,
                'diamond_balance' => $diamondBalanceFormatted,
                'fee_amount'      => $feeDto->feeAmount,
                'required_total'  => $feeDto->totleAmount,
                'is_allowed'      => $isAllowed
            ]);

            return [
                'check'           => $isAllowed,
                'diamond_balance' => $diamondBalanceFormatted,
                'principal_total' => $feeDto->actualAmount,
                'fee_total'       => $feeDto->feeAmount,
                'required_total'  => $feeDto->totleAmount,
                'message'         => $isAllowed ? '余额充足，允许提取' : '余额不足，无法提取'
            ];

        } catch (\Exception $e) {
            Log::error("URS余额检查处理异常", [
                'urs_user_id' => $userId ?? 'unknown',
                'amount'      => $amount ?? 'unknown',
                'error'       => $e->getMessage(),
                'trace'       => $e->getTraceAsString()
            ]);
            throw $e;
        }
    }

}