<?php

namespace App\Module\Game\Logics\RewardProcessors;

use App\Module\Game\Dtos\RewardItemDto;
use App\Module\Game\Services\SkinService;
use Exception;
use Illuminate\Support\Facades\Log;

/**
 * 皮肤奖励处理器
 * 
 * 处理皮肤(SKIN)类型的奖励发放
 */
class SkinRewardProcessor
{
    /**
     * 处理皮肤奖励
     *
     * @param int $userId 用户ID
     * @param RewardItemDto $item 奖励项
     * @param string $sourceType 来源类型
     * @param int $sourceId 来源ID
     * @return void
     * @throws Exception
     */
    public static function process(int $userId, RewardItemDto $item, string $sourceType, int $sourceId): void
    {
        try {
            // 验证皮肤ID
            if (!SkinService::isValidSkinId($item->targetId)) {
                throw new Exception("无效的皮肤ID: {$item->targetId}");
            }

            // 检查用户是否已拥有该皮肤
            if (SkinService::hasSkin($userId, $item->targetId)) {
                Log::info("用户已拥有该皮肤，跳过发放", [
                    'userId' => $userId,
                    'skinId' => $item->targetId,
                    'sourceType' => $sourceType,
                    'sourceId' => $sourceId
                ]);
                return; // 已拥有则跳过，不抛异常
            }

            // 为用户添加皮肤
            $result = SkinService::addSkin($userId, $item->targetId);
            
            if (!$result->success) {
                throw new Exception("皮肤奖励发放失败: " . $result->errorMessage);
            }

            Log::info("皮肤奖励发放成功", [
                'userId' => $userId,
                'skinId' => $item->targetId,
                'skinName' => SkinService::getSkinName($item->targetId),
                'quantity' => $item->quantity,
                'sourceType' => $sourceType,
                'sourceId' => $sourceId
            ]);

        } catch (Exception $e) {
            Log::error("皮肤奖励处理失败", [
                'userId' => $userId,
                'rewardType' => $item->rewardType,
                'targetId' => $item->targetId,
                'quantity' => $item->quantity,
                'sourceType' => $sourceType,
                'sourceId' => $sourceId,
                'error' => $e->getMessage()
            ]);
            throw $e;
        }
    }
}