<?php

namespace App\Module\Transfer\Services;

use App\Module\Transfer\Dtos\TransferOrderDto;
use App\Module\Transfer\Dtos\TransferFeeDto;
use App\Module\Transfer\Events\FeeCalculatedEvent;
use App\Module\Transfer\Logics\TransferLogic;
use App\Module\Transfer\Models\TransferApp;

/**
 * Transfer模块为ThirdParty模块提供的服务接口
 * 专门为第三方应用提供充值和提现功能
 */
class TransferThirdPartyService
{

    /**
     * 创建充值单（转入订单）
     * 三方 =》 我
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @param int $farmUserId 农场用户ID
     * @param string $thirdPartyUserId 三方用户ID
     * @param string $thirdPartyAmount 三方金额
     * @param string|null $remark 备注
     * @param array $callbackData 回调数据
     * @return TransferOrderDto|string 成功返回DTO，失败返回错误信息
     * @throws \Exception
     */
    public static function createRechargeOrder(
        int     $thirdPartyAppId,
        int     $farmUserId,
        string  $thirdPartyUserId,
        string  $thirdPartyAmount,
        string  $order_id = null,
        ?string $remark = null,
        array   $callbackData = []
    ): TransferOrderDto|string
    {
        try {
            // 根据三方应用ID查找对应的Transfer应用配置
            $transferApp = TransferApp::where('out_id3', $thirdPartyAppId)
                ->where('is_enabled', true)
                ->first();

            if (!$transferApp) {
                return '未找到对应的划转应用配置或应用已禁用';
            }

            // 检查应用是否支持转入
            if (!$transferApp->supportsTransferIn()) {
                return '该应用不支持充值功能或充值功能已被禁用';
            }

            // 生成业务订单ID（使用时间戳+随机字符串）


            // 调用Transfer模块的转入逻辑
            $order = TransferLogic::createTransferIn(
                transferAppId: $transferApp->id,
                userId:        $farmUserId,
                out_order_id:  $order_id,
                amount:        $thirdPartyAmount,
                outUserId:     $thirdPartyUserId,
                remark:        $remark,
                callbackData:  array_merge($callbackData, [
                                   'third_party_app_id'  => $thirdPartyAppId,
                                   'third_party_user_id' => $thirdPartyUserId,
                                   'operation_type'      => 'recharge'
                               ])
            );

            return TransferOrderDto::fromModel($order);
        } catch (\Exception $e) {
            \Illuminate\Support\Facades\Log::error('ThirdParty recharge order creation failed', [
                'third_party_app_id'  => $thirdPartyAppId,
                'farm_user_id'        => $farmUserId,
                'third_party_user_id' => $thirdPartyUserId,
                'amount'              => $thirdPartyAmount,
                'error'               => $e->getMessage()
            ]);

            return $e->getMessage();
        }
    }

    /**
     * 创建提现单（转出订单）
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @param int $farmUserId 农场用户ID
     * @param string $thirdPartyUserId 三方用户ID
     * @param string $thirdPartyAmount 三方金额（外部金额）
     * @param string|null $remark 备注
     * @param array $callbackData 回调数据
     * @return TransferOrderDto|string 成功返回DTO，失败返回错误信息
     * @throws \Exception
     */
    public static function createWithdrawOrder(
        int     $thirdPartyAppId,
        int     $farmUserId,
        string  $thirdPartyUserId,
        string  $order_id,
        string  $thirdPartyAmount,
        ?string $remark = null,
        array   $callbackData = []
    ): TransferOrderDto|string
    {
        try {
            // 根据三方应用ID查找对应的Transfer应用配置
            $transferApp = TransferApp::where('out_id3', $thirdPartyAppId)
                ->where('is_enabled', true)
                ->first();

            if (!$transferApp) {
                return '未找到对应的划转应用配置或应用已禁用';
            }

            // 检查应用是否支持转出
            if (!$transferApp->supportsTransferOut()) {
                return '该应用不支持提现功能或提现功能已被禁用';
            }

            // 调用Transfer模块的第三方转出逻辑（跳过密码验证）
            // 注意：这里传递的是外部金额，createTransferOutForThirdParty内部会进行金额转换
            $order = TransferLogic::createTransferOutForThirdParty(
                transferAppId: $transferApp->id,
                userId:        $farmUserId,
                amount:        $thirdPartyAmount, // 传递外部金额
                outUserId:     $thirdPartyUserId,
                out_order_id:  $order_id,
                remark:        $remark,
                callbackData:  array_merge($callbackData, [
                                   'third_party_app_id'  => $thirdPartyAppId,
                                   'third_party_user_id' => $thirdPartyUserId,
                                   'operation_type'      => 'withdraw'
                               ])
            );

            return TransferOrderDto::fromModel($order);
        } catch (\Exception $e) {
            \Illuminate\Support\Facades\Log::error('ThirdParty withdraw order creation failed', [
                'third_party_app_id'  => $thirdPartyAppId,
                'farm_user_id'        => $farmUserId,
                'third_party_user_id' => $thirdPartyUserId,
                'third_party_amount'  => $thirdPartyAmount,
                'error'               => $e->getMessage()
            ]);

            return $e->getMessage();
        }
    }

    /**
     * 根据三方应用ID获取Transfer应用配置
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @return TransferApp|null
     */
    public static function getTransferAppByThirdPartyId(int $thirdPartyAppId): ?TransferApp
    {
        return TransferApp::where('out_id3', $thirdPartyAppId)
            ->where('is_enabled', true)
            ->first();
    }

    /**
     * 检查三方应用是否支持充值
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @return bool
     */
    public static function supportsRecharge(int $thirdPartyAppId): bool
    {
        $transferApp = self::getTransferAppByThirdPartyId($thirdPartyAppId);

        return $transferApp && $transferApp->supportsTransferIn();
    }

    /**
     * 检查三方应用是否支持提现
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @return bool
     */
    public static function supportsWithdraw(int $thirdPartyAppId): bool
    {
        $transferApp = self::getTransferAppByThirdPartyId($thirdPartyAppId);

        return $transferApp && $transferApp->supportsTransferOut();
    }

    /**
     * 获取三方应用的手续费配置
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @return array
     */
    public static function getFeeConfig(int $thirdPartyAppId): array
    {
        $transferApp = self::getTransferAppByThirdPartyId($thirdPartyAppId);

        if (!$transferApp) {
            return [
                'error'    => '未找到对应的划转应用配置',
                'recharge' => [ 'rate' => 0, 'min' => 0, 'max' => 0, 'enabled' => false ],
                'withdraw' => [ 'rate' => 0, 'min' => 0, 'max' => 0, 'enabled' => false ],
            ];
        }

        return [
            'recharge'      => [
                'rate'    => $transferApp->fee_in_rate,
                'min'     => $transferApp->fee_in_min,
                'max'     => $transferApp->fee_in_max,
                'enabled' => $transferApp->isFeeEnabled('in'),
            ],
            'withdraw'      => [
                'rate'    => $transferApp->fee_out_rate,
                'min'     => $transferApp->fee_out_min,
                'max'     => $transferApp->fee_out_max,
                'enabled' => $transferApp->isFeeEnabled('out'),
            ],
            'exchange_rate' => $transferApp->exchange_rate,
            'currency_id'   => $transferApp->currency_id,
            'fund_id'       => $transferApp->fund_id,
        ];
    }


    /**
     * 计算提现手续费（带上下文信息）
     *
     * @param int $thirdPartyAppId 三方应用ID
     * @param string $amount 提现金额(外部金额)
     * @param array $context 上下文信息（包含用户ID等，用于URS推广模块计算手续费率）
     * @return TransferFeeDto
     */
    public static function calculateWithdrawFeeWithContext(int $thirdPartyAppId, string $amount, array $context = []): TransferFeeDto
    {
        $transferApp = self::getTransferAppByThirdPartyId($thirdPartyAppId);

        if (!$transferApp) {
            return TransferFeeDto::error(
                originalAmount: $amount,
                errorMessage:   '未找到对应的划转应用配置'
            );
        }

        // 将三方金额转换为农场内部金额（提现：外部金额转内部金额）
        $internalAmount = bcmul($amount, (string)$transferApp->exchange_rate, 10);

        // 获取手续费计算结果，传递上下文信息以便URS推广模块计算正确的手续费率
        $FeeCalculatedEvent = \App\Module\Transfer\Services\FeeService::calculateOutFee($transferApp, $internalAmount, $context);
        // ['fee_rate' => 手续费率, 'fee_amount' => 手续费金额, 'actual_amount' => 用户总支付金额]
        //  public readonly float   $feeRate,
        //        public readonly string  $feeAmount,
        //        public readonly string  $actualAmount,
        //        public readonly string  $originalAmount,
        //        public readonly bool    $hasError = false,
        //        public readonly ?string $errorMessage = null,

        // 将结果转换为DTO
        return TransferFeeDto::success(
            originalAmount: $amount,
            feeRate:        $FeeCalculatedEvent->feeRate,
            feeAmount:      $FeeCalculatedEvent->feeAmount,
            actualAmount:   $internalAmount,
            totleAmount:    $FeeCalculatedEvent->totleAmount,
            additionalInfo: []
        );
    }

}