<?php

namespace App\Module\Game\Logics;

use App\Module\Farm\Events\HouseUpgradedEvent;
use App\Module\Farm\Services\HouseService;
use App\Module\Game\Dtos\HouseChangeTempDto;
use Illuminate\Support\Facades\Log;
use UCore\Helper\Cache;

/**
 * 房屋临时数据逻辑类
 *
 * 负责处理房屋相关事件的临时数据存储逻辑，包括：
 * 1. 将房屋升级数据临时存储
 * 2. 将房屋降级数据临时存储
 * 3. 按照用户进行存储
 * 4. 同一用户的房屋多次变更进行数据覆盖
 */
class HouseTemp
{
    /**
     * 临时数据键前缀
     */
    const TEMP_KEY_PREFIX = 'game:house:changed:';

    /**
     * 临时数据过期时间（秒）
     */
    const TEMP_TTL = 3600; // 1小时

    /**
     * 处理房屋升级事件
     *
     * @param HouseUpgradedEvent $event 房屋升级事件
     * @return void
     */
    public static function handleHouseUpgraded(HouseUpgradedEvent $event): void
    {
        self::handleHouseChange($event->userId, $event->oldLevel, $event->newLevel, true);
    }

    /**
     * 处理房屋降级事件
     *
     * @param \App\Module\Farm\Events\HouseDowngradedEvent $event 房屋降级事件
     * @return void
     */
    public static function handleHouseDowngraded(\App\Module\Farm\Events\HouseDowngradedEvent $event): void
    {
        self::handleHouseChange($event->userId, $event->oldLevel, $event->newLevel, false);
    }

    /**
     * 处理房屋变更
     *
     * @param int $userId 用户ID
     * @param int $oldLevel 旧等级
     * @param int $newLevel 新等级
     * @param bool $isUpgrade 是否为升级
     * @return void
     */
    private static function handleHouseChange(int $userId, int $oldLevel, int $newLevel, bool $isUpgrade): void
    {
        try {
            // 构建临时数据键
            $tempKey = self::TEMP_KEY_PREFIX . $userId;

            // 获取房屋配置信息
            $houseConfig = HouseService::getHouseConfig($newLevel);

            // 构建房屋变更数据
            $houseData = [
                'old_level' => $oldLevel,
                'new_level' => $newLevel,
                'is_upgrade' => $isUpgrade,
                'output_bonus' => $houseConfig ? ($houseConfig->output_bonus / 100) : 0.0, // 将百分比值转换为小数
                'special_land_limit' => $houseConfig ? $houseConfig->special_land_limit : 0,
                'updated_at' => time(),
            ];

            // 存储房屋变更数据
            Cache::put($tempKey, $houseData, self::TEMP_TTL);

            Log::info('房屋变更数据已临时存储', [
                'user_id' => $userId,
                'old_level' => $oldLevel,
                'new_level' => $newLevel,
                'is_upgrade' => $isUpgrade,
            ]);
        } catch (\Exception $e) {
            Log::error('房屋变更数据临时存储失败', [
                'error' => $e->getMessage(),
                'user_id' => $userId,
                'old_level' => $oldLevel,
                'new_level' => $newLevel,
            ]);
        }
    }

    /**
     * 获取用户的房屋变更临时数据
     *
     * @param int $userId 用户ID
     * @return HouseChangeTempDto|null 用户的房屋变更数据，不存在时返回null
     */
    public static function getUserHouseChange(int $userId): ?HouseChangeTempDto
    {
        $tempKey = self::TEMP_KEY_PREFIX . $userId;
        $cachedData = Cache::get($tempKey);

        return HouseChangeTempDto::fromCacheSingle($cachedData);
    }

    /**
     * 清除用户的房屋变更临时数据
     *
     * @param int $userId 用户ID
     * @return void
     */
    public static function clearUserHouseChange(int $userId): void
    {
        $tempKey = self::TEMP_KEY_PREFIX . $userId;
        Cache::put($tempKey, null, 0);
    }
}