kknongchang_2506/app/Module/Game/Logics/SkinLogic.php

<?php

namespace App\Module\Game\Logics;

use App\Module\Game\Models\GameUserSkin;
use App\Module\Game\Dto\UserSkinDto;
use UCore\Dto\Res;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;

/**
 * 皮肤逻辑类
 *
 * 处理皮肤相关的内部业务逻辑
 */
class SkinLogic
{
    /**
     * 获取用户皮肤信息
     *
     * @param int $userId 用户ID
     * @return UserSkinDto|null
     */
    public function getUserSkinInfo(int $userId): ?UserSkinDto
    {
        try {
            $userSkin = GameUserSkin::where('user_id', $userId)->first();
            
            if (!$userSkin) {
                // 如果用户没有皮肤记录，自动初始化
                $initResult = $this->initUserSkin($userId);
                if (!$initResult->success) {
                    return null;
                }
                $userSkin = GameUserSkin::where('user_id', $userId)->first();
            }
            
            return UserSkinDto::fromModel($userSkin);
        } catch (\Exception $e) {
            Log::error('获取用户皮肤信息失败', [
                'user_id' => $userId,
                'error' => $e->getMessage()
            ]);
            return null;
        }
    }

    /**
     * 切换用户皮肤
     *
     * @param int $userId 用户ID
     * @param int $skinId 皮肤ID
     * @return Res
     */
    public function changeSkin(int $userId, int $skinId): Res
    {
        try {
            // 验证皮肤ID
            if (!GameUserSkin::isValidSkinId($skinId)) {
                return Res::error('无效的皮肤ID');
            }

            $userSkin = GameUserSkin::where('user_id', $userId)->first();
            
            if (!$userSkin) {
                // 如果用户没有皮肤记录，先初始化
                $initResult = $this->initUserSkin($userId);
                if (!$initResult->success) {
                    return $initResult;
                }
                $userSkin = GameUserSkin::where('user_id', $userId)->first();
            }

            // 检查是否拥有该皮肤
            if (!$userSkin->hasSkin($skinId)) {
                return Res::error('您还没有拥有该皮肤');
            }

            // 切换皮肤
            $userSkin->current_skin_id = $skinId;
            $userSkin->save();

            return Res::success('皮肤切换成功');
        } catch (\Exception $e) {
            Log::error('切换皮肤失败', [
                'user_id' => $userId,
                'skin_id' => $skinId,
                'error' => $e->getMessage()
            ]);
            return Res::error('切换皮肤失败');
        }
    }

    /**
     * 为用户添加皮肤
     *
     * @param int $userId 用户ID
     * @param int $skinId 皮肤ID
     * @return Res
     */
    public function addSkin(int $userId, int $skinId): Res
    {
        try {
            // 验证皮肤ID
            if (!GameUserSkin::isValidSkinId($skinId)) {
                return Res::error('无效的皮肤ID');
            }

            $userSkin = GameUserSkin::where('user_id', $userId)->first();
            
            if (!$userSkin) {
                // 如果用户没有皮肤记录，先初始化
                $initResult = $this->initUserSkin($userId);
                if (!$initResult->success) {
                    return $initResult;
                }
                $userSkin = GameUserSkin::where('user_id', $userId)->first();
            }

            // 添加皮肤
            if (!$userSkin->addSkin($skinId)) {
                return Res::error('您已经拥有该皮肤');
            }

            $userSkin->save();

            return Res::success('皮肤获得成功');
        } catch (\Exception $e) {
            Log::error('添加皮肤失败', [
                'user_id' => $userId,
                'skin_id' => $skinId,
                'error' => $e->getMessage()
            ]);
            return Res::error('添加皮肤失败');
        }
    }

    /**
     * 检查用户是否拥有指定皮肤
     *
     * @param int $userId 用户ID
     * @param int $skinId 皮肤ID
     * @return bool
     */
    public function hasSkin(int $userId, int $skinId): bool
    {
        try {
            $userSkin = GameUserSkin::where('user_id', $userId)->first();
            
            if (!$userSkin) {
                return $skinId === 1; // 默认拥有1号皮肤
            }

            return $userSkin->hasSkin($skinId);
        } catch (\Exception $e) {
            Log::error('检查皮肤拥有状态失败', [
                'user_id' => $userId,
                'skin_id' => $skinId,
                'error' => $e->getMessage()
            ]);
            return false;
        }
    }

    /**
     * 初始化用户皮肤数据
     *
     * @param int $userId 用户ID
     * @return Res
     */
    public function initUserSkin(int $userId): Res
    {
        try {
            // 检查是否已存在
            $existing = GameUserSkin::where('user_id', $userId)->first();
            if ($existing) {
                return Res::success('用户皮肤数据已存在');
            }

            // 创建默认皮肤数据
            GameUserSkin::create([
                'user_id' => $userId,
                'current_skin_id' => 1,
                'owned_skins' => '1',
            ]);

            return Res::success('用户皮肤数据初始化成功');
        } catch (\Exception $e) {
            Log::error('初始化用户皮肤数据失败', [
                'user_id' => $userId,
                'error' => $e->getMessage()
            ]);
            return Res::error('初始化用户皮肤数据失败');
        }
    }
}