<?php

namespace App\Module\AppGame\Handler\Pet;

use App\Module\AppGame\Handler\BaseHandler;
use App\Module\Pet\Services\PetService;
use Google\Protobuf\Internal\Message;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Uraus\Kku\Request\RequestPetLifeSkillUse;
use Uraus\Kku\Response\ResponsePetLifeSkillUse;
use UCore\Exception\LogicException;

/**
 * 处理使用宠物生活技能请求
 */
class LifeSkillUseHandler extends BaseHandler
{
    /**
     * 是否需要登录
     * @var bool
     */
    protected bool $need_login = true;

    /**
     * 处理使用宠物生活技能请求
     *
     * @param RequestPetLifeSkillUse $data 使用宠物生活技能请求数据
     * @return ResponsePetLifeSkillUse 使用宠物生活技能响应
     */
    public function handle(Message $data): Message
    {
        // 创建响应对象
        $response = new ResponsePetLifeSkillUse();

        try {
            // 获取请求参数
            $petId = $data->getPetId();
            $skillIds = $data->getSkillId(); // RepeatedField，包含多个技能ID
            $userId = $this->user_id;

            // 将RepeatedField转换为数组
            $skillIdArray = [];
            foreach ($skillIds as $skillId) {
                $skillIdArray[] = $skillId;
            }

            // 技能参数（暂时使用默认值）
            $params = [];

            Log::info('用户批量使用宠物生活技能', [
                'user_id' => $userId,
                'pet_id' => $petId,
                'skill_ids' => $skillIdArray,
                'skill_count' => count($skillIdArray)
            ]);

            // 验证参数
            if (!$petId || $petId <= 0) {
                throw new LogicException("宠物ID无效");
            }
            if (empty($skillIdArray)) {
                throw new LogicException("技能ID列表不能为空");
            }

            // 验证技能ID
            foreach ($skillIdArray as $skillId) {
                if (!$skillId || $skillId <= 0) {
                    throw new LogicException("技能ID无效: {$skillId}");
                }
            }

            // 开启事务
            DB::beginTransaction();

            $successCount = 0;
            $failedSkills = [];
            $errorMessages = [];

            // 逐个激活技能
            foreach ($skillIdArray as $skillId) {
                try {
                    // 调用宠物服务使用技能
                    $result = PetService::useSkill($userId, $petId, $skillId, $params);
                    $successCount++;

                    Log::info('单个技能激活成功', [
                        'user_id' => $userId,
                        'pet_id' => $petId,
                        'skill_id' => $skillId
                    ]);

                } catch (\Exception $e) {
                    $failedSkills[] = $skillId;
                    $errorMessages[] = "技能{$skillId}: " . $e->getMessage();

                    Log::warning('单个技能激活失败', [
                        'user_id' => $userId,
                        'pet_id' => $petId,
                        'skill_id' => $skillId,
                        'error' => $e->getMessage()
                    ]);
                }
            }

            // 如果有失败的技能，抛出异常说明情况
            if (!empty($failedSkills)) {
                $errorMsg = "部分技能激活失败：" . implode('; ', $errorMessages);
                if ($successCount === 0) {
                    // 全部失败
                    throw new LogicException("所有技能激活失败：" . implode('; ', $errorMessages));
                } else {
                    // 部分失败，记录警告但不抛出异常
                    Log::warning('部分技能激活失败', [
                        'user_id' => $userId,
                        'pet_id' => $petId,
                        'success_count' => $successCount,
                        'failed_count' => count($failedSkills),
                        'error_message' => $errorMsg
                    ]);
                }
            }

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

            Log::info('宠物生活技能批量使用完成', [
                'user_id' => $userId,
                'pet_id' => $petId,
                'total_skills' => count($skillIdArray),
                'success_count' => $successCount,
                'failed_count' => count($failedSkills),
                'failed_skills' => $failedSkills
            ]);

        } catch (\UCore\Exception\ValidateException $e) {
            // 验证失败
            DB::rollBack();

            Log::warning('宠物生活技能使用验证失败', [
                'user_id' => $this->user_id,
                'pet_id' => $petId ?? null,
                'skill_id' => $skillId ?? null,
                'error' => $e->getMessage()
            ]);

            throw $e;

        } catch (LogicException $e) {
            // 业务逻辑异常
            if (DB::transactionLevel() > 0) {
                DB::rollBack();
            }

            Log::warning('宠物生活技能使用失败', [
                'user_id' => $this->user_id,
                'pet_id' => $petId ?? null,
                'skill_id' => $skillId ?? null,
                'error' => $e->getMessage()
            ]);

            throw $e;

        } catch (\Exception $e) {
            // 系统异常
            if (DB::transactionLevel() > 0) {
                DB::rollBack();
            }

            Log::error('宠物生活技能使用异常', [
                'user_id' => $this->user_id,
                'pet_id' => $petId ?? null,
                'skill_id' => $skillId ?? null,
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);

            throw $e;
        }

        return $response;
    }
}