kknongchang_2506/app/Module/AppGame/Handler/Land/HarvestHandler.php

<?php

namespace App\Module\AppGame\Handler\Land;

use App\Module\AppGame\Handler\BaseHandler;
use App\Module\AppGame\Proto\LandInfoDto;
use App\Module\Farm\Services\CropService;
use App\Module\Farm\Services\LandService;
use App\Module\Farm\Validations\CropHarvestValidation;
use Google\Protobuf\Internal\Message;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Uraus\Kku\Common\LastData;
use Uraus\Kku\Request\RequestLandHarvest;
use Uraus\Kku\Response\ResponseLandHarvest;
use UCore\Exception\LogicException;

/**
 * 处理收获操作请求
 */
class HarvestHandler extends BaseHandler
{
    /**
     * 是否需要登录
     * @var bool
     */
    protected bool $need_login = true;

    /**
     * 处理收获操作请求
     *
     * @param RequestLandHarvest $data 收获操作请求数据
     * @return ResponseLandHarvest 收获操作响应
     */
    public function handle(Message $data): Message
    {
        // 创建响应对象
        $response = new ResponseLandHarvest();

        try {
            // 获取请求参数
            $landId = $data->getLandId();
            $userId = $this->user_id;

            // 先进行验证，避免不必要的事务开销
            $validation = new CropHarvestValidation([
                'user_id' => $userId,
                'land_id' => $landId
            ]);

            // 验证数据
            $validation->validated();

            // 验证通过后，开启事务
            DB::beginTransaction();

            // 调用收获服务
            $harvestResult = CropService::harvestCrop($userId, $landId);
            if ($harvestResult->error) {
                throw new LogicException($harvestResult->message ?: "收获失败，请检查土地状态或作物生长阶段");
            }

            // 提交事务
            DB::commit();

            // 获取更新后的土地信息并返回
            $updatedLand = LandService::getUserLand($userId, $landId);
            if ($updatedLand) {
                // 创建LastData对象
                $lastData = new LastData();
                $landData = LandInfoDto::toDataLand($updatedLand);
                $lastData->setLands([$landData]);

                // 设置LastData到响应
                $this->response->setLastData($lastData);
            }

            // 设置响应状态
            $this->response->setCode(0);
            $this->response->setMsg('收获成功');

            Log::info('用户收获成功', [
                'user_id' => $userId,
                'land_id' => $landId,
                'harvest_result' => $harvestResult->data ?? []
            ]);

        } catch (\UCore\Exception\ValidateException $e) {
            // 验证失败，此时可能还没有开启事务
            $this->response->setCode(400);
            $this->response->setMsg($e->getMessage());

            Log::warning('收获验证失败', [
                'user_id' => $userId ?? null,
                'land_id' => $landId ?? null,
                'error' => $e->getMessage()
            ]);

        } catch (LogicException $e) {
            // 业务逻辑异常，需要回滚事务
            if (DB::transactionLevel() > 0) {
                DB::rollBack();
            }

            $this->response->setCode(400);
            $this->response->setMsg($e->getMessage());

            Log::warning('用户收获失败', [
                'user_id' => $userId ?? null,
                'land_id' => $landId ?? null,
                'error' => $e->getMessage()
            ]);

        } catch (\Exception $e) {
            // 系统异常，需要回滚事务
            if (DB::transactionLevel() > 0) {
                DB::rollBack();
            }

            $this->response->setCode(500);
            $this->response->setMsg('系统错误，请稍后再试');

            Log::error('收获操作异常', [
                'user_id' => $userId ?? null,
                'land_id' => $landId ?? null,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
        }

        return $response;
    }
}