<?php

namespace App\Module\AppGame\Handler\House;

use App\Module\AppGame\Handler\BaseHandler;
use App\Module\Farm\Services\HouseService;
use App\Module\Farm\Validations\HouseUpgradeValidation;
use Google\Protobuf\Internal\Message;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Uraus\Kku\Request\RequestHouseUp;
use Uraus\Kku\Response\ResponseHouseUp;
use UCore\Exception\LogicException;

/**
 * 处理房屋升级请求
 */
class UpHandler extends BaseHandler
{

    /**
     * 是否需要登录
     *
     * @var bool
     */
    protected bool $need_login = true;

    /**
     * 处理房屋升级请求
     *
     * @param RequestHouseUp $data 房屋升级请求数据
     * @return ResponseHouseUp 房屋升级响应
     */
    public function handle(Message $data): Message
    {
        // 创建响应对象
        $response = new ResponseHouseUp();

        try {
            $userId = $this->user_id;

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

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

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

            // 执行业务逻辑（不再需要验证）
            $result = HouseService::executeHouseUpgrade($userId);

            if (!$result) {
                throw new LogicException("升级房屋失败");
            }

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

            // 记录成功日志
            Log::info('用户房屋升级成功', [
                'user_id' => $userId
            ]);

        } catch (\UCore\Exception\ValidateException $e) {
            // 验证失败，此时可能还没有开启事务
            throw new LogicException($e->getMessage());

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

            Log::warning('用户房屋升级失败', [
                'user_id' => $userId,
                'error' => $e->getMessage()
            ]);

            throw $e;

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

            Log::error('用户房屋升级系统异常', [
                'user_id' => $userId,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);

            throw new LogicException('系统异常，请稍后重试');
        }

        return $response;
    }

}