<?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\CropPlantValidation;
use App\Module\GameItems\Services\ItemService;
use Google\Protobuf\Internal\Message;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use UCore\Db\Helper;
use UCore\DcatAdmin\Herlper;
use Uraus\Kku\Common\LastData;
use Uraus\Kku\Request\RequestLandSow;
use Uraus\Kku\Response\ResponseLandSow;
use UCore\Exception\LogicException;

/**
 * 种植操作请求处理器
 */
class SowHandler extends BaseHandler
{
    /**
     * 是否需要登录
     * @var bool
     */
    protected bool $need_login = true;

    /**
     * 处理种植操作请求
     *
     * @param RequestLandSow $data 种植操作请求数据
     * @return ResponseLandSow 种植操作响应
     */
    public function handle(Message $data): Message
    {
        // 创建响应对象
        $response = new ResponseLandSow();

            // 获取请求参数
            $landId = $data->getLandId();
            $itemId = $data->getItemId();
            $itemInstanceId = $data->getItemInstanceId();
            $userId = $this->user_id;

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

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

        try {

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

            // 调用Farm模块的CropService种植作物
            $plantResult = CropService::plantCrop($userId, $landId, $itemId);
            if (!$plantResult) {
                throw new LogicException("种植失败，请检查土地状态");
            }

            // 获取种植日志ID
            $sowLogId = $plantResult['log_id'] ?? 0;

            // 消耗种子物品
            ItemService::consumeItem($userId, $itemId, $itemInstanceId, 1, [
                'source_type' => 'land_sow',
                'source_id' => $landId,
                'details' => [
                    'land_id' => $landId,
                    'sow_id' => $sowLogId
                ]
            ]);

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


            // LastData 由中间件处理

            Log::info('用户种植成功', [
                'user_id' => $userId,
                'land_id' => $landId,
                'seed_id' => $itemId,
                'item_instance_id' => $itemInstanceId,
                'crop_id' => $plantResult['crop']->id ?? 0,
                'sow_log_id' => $sowLogId
            ]);

        } 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('种植操作异常', [
                'user_id' => $userId ?? null,
                'land_id' => $landId ?? null,
                'item_id' => $itemId ?? null,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
        }

        return $response;
    }
}