<?php

namespace App\Module\AppGame\Handler\Land;

use App\Module\AppGame\Handler\BaseHandler;
use App\Module\Farm\Services\CropService;
use App\Module\Farm\Enums\DISASTER_TYPE;
use Google\Protobuf\Internal\Message;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Uraus\Kku\Request\RequestLandWatering;
use Uraus\Kku\Response\ResponseLandWatering;
use UCore\Exception\LogicException;

/**
 * 处理浇水操作请求
 */
class WateringHandler extends BaseHandler
{
    /**
     * 是否需要登录
     * @var bool
     */
    protected bool $need_login = true;

    /**
     * 处理浇水操作请求
     *
     * @param RequestLandWatering $data 浇水操作请求数据
     * @return ResponseLandWatering 浇水操作响应
     */
    public function handle(Message $data): Message
    {
        // 创建响应对象
        $response = new ResponseLandWatering();

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

            // 先进行验证，避免不必要的事务开销
            $validation = new \App\Module\Farm\Validations\DisasterRemovalValidation([
                'user_id' => $userId,
                'land_id' => $landId,
                'item_id' => $userItemId,
                'disaster_type' => DISASTER_TYPE::DROUGHT->value
            ]);

            // 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 = CropService::removeDisasterWithItem(
                $userId,
                $landId,
                $userItemId,
                DISASTER_TYPE::DROUGHT->value,
                'land_watering'
            );

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

            // 设置响应状态
            $this->response->setCode(0);
            $this->response->setMsg($result['message']);

        } 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('用户浇水验证失败', [
                'user_id' => $this->user_id,
                'land_id' => $landId ?? null,
                'item_id' => $userItemId ?? 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();
            }

            // 设置错误响应
            $this->response->setCode(400);
            $this->response->setMsg($e->getMessage());

            Log::warning('用户浇水失败', [
                'user_id' => $this->user_id,
                'land_id' => $landId ?? null,
                'item_id' => $userItemId ?? null,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
        } catch (\Exception $e) {
            // 系统异常，需要回滚事务
            if (DB::transactionLevel() > 0) {
                DB::rollBack();
            }

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

            Log::error('浇水操作异常', [
                'user_id' => $this->user_id,
                'land_id' => $landId ?? null,
                'item_id' => $userItemId ?? null,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
        }

        return $response;
    }
}