<?php

namespace App\Module\Game\Logics;

use App\Module\Game\Dtos\TaskChangeTempDto;
use App\Module\Task\Events\TaskCompletedEvent;
use App\Module\Task\Events\TaskRewardClaimedEvent;
use Illuminate\Support\Facades\Log;
use UCore\Helper\Cache;

/**
 * 任务临时数据逻辑类
 *
 * 负责处理任务相关事件的临时数据存储逻辑，包括：
 * 1. 将任务状态变更数据临时存储
 * 2. 将任务进度变更数据临时存储
 * 3. 将任务奖励领取数据临时存储
 * 4. 按照用户进行存储
 * 5. 同一任务多次变更进行数据覆盖
 */
class TaskTemp
{
    /**
     * 临时数据键前缀
     */
    const TEMP_KEY_PREFIX = 'game:task:changed:';

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

    /**
     * 处理任务完成事件
     *
     * 将任务完成数据临时存储，按用户ID进行存储
     *
     * @param TaskCompletedEvent $event 任务完成事件
     * @return void
     */
    public static function handleTaskCompleted(TaskCompletedEvent $event): void
    {
        try {
            // 构建临时数据键，按用户ID进行存储
            $tempKey = self::TEMP_KEY_PREFIX . $event->userId;

            // 获取当前用户的任务变更临时数据
            $userTasksTemp = Cache::get($tempKey, []);

            // 构建任务变更数据
            $taskData = [
                'task_id' => $event->taskId,
                'task_name' => $event->taskName,
                'change_type' => 'completed',
                'status' => 'completed',
                'completed_at' => $event->completedAt ? $event->completedAt->timestamp : time(),
                'updated_at' => time(),
            ];

            // 使用任务ID作为键，避免同一任务的多次变更相互覆盖
            $userTasksTemp[$event->taskId] = $taskData;

            // 将更新后的数据存回临时存储
            Cache::put($tempKey, $userTasksTemp, self::TEMP_TTL);

            Log::info('任务完成数据已临时存储', [
                'user_id' => $event->userId,
                'task_id' => $event->taskId,
                'task_name' => $event->taskName,
            ]);
        } catch (\Exception $e) {
            Log::error('任务完成数据临时存储失败', [
                'error' => $e->getMessage(),
                'user_id' => $event->userId,
                'task_id' => $event->taskId,
            ]);
        }
    }

    /**
     * 处理任务奖励领取事件
     *
     * 将任务奖励领取数据临时存储，按用户ID进行存储
     *
     * @param TaskRewardClaimedEvent $event 任务奖励领取事件
     * @return void
     */
    public static function handleTaskRewardClaimed(TaskRewardClaimedEvent $event): void
    {
        try {
            // 构建临时数据键，按用户ID进行存储
            $tempKey = self::TEMP_KEY_PREFIX . $event->userId;

            // 获取当前用户的任务变更临时数据
            $userTasksTemp = Cache::get($tempKey, []);

            // 构建任务变更数据
            $taskData = [
                'task_id' => $event->taskId,
                'task_name' => $event->taskName,
                'change_type' => 'reward_claimed',
                'status' => 'rewarded',
                'rewards' => $event->rewards,
                'rewarded_at' => $event->claimedAt ? $event->claimedAt->timestamp : time(),
                'updated_at' => time(),
            ];

            // 使用任务ID作为键，避免同一任务的多次变更相互覆盖
            $userTasksTemp[$event->taskId] = $taskData;

            // 将更新后的数据存回临时存储
            Cache::put($tempKey, $userTasksTemp, self::TEMP_TTL);

            Log::info('任务奖励领取数据已临时存储', [
                'user_id' => $event->userId,
                'task_id' => $event->taskId,
                'task_name' => $event->taskName,
                'rewards_count' => count($event->rewards),
            ]);
        } catch (\Exception $e) {
            Log::error('任务奖励领取数据临时存储失败', [
                'error' => $e->getMessage(),
                'user_id' => $event->userId,
                'task_id' => $event->taskId,
            ]);
        }
    }

    /**
     * 处理任务进度更新
     *
     * 将任务进度更新数据临时存储，按用户ID进行存储
     *
     * @param int $userId 用户ID
     * @param int $taskId 任务ID
     * @param string $taskName 任务名称
     * @param int $progress 进度百分比
     * @param array $progressDetails 进度详情
     * @return void
     */
    public static function handleTaskProgressUpdated(int $userId, int $taskId, string $taskName, int $progress, array $progressDetails = []): void
    {
        try {
            // 构建临时数据键，按用户ID进行存储
            $tempKey = self::TEMP_KEY_PREFIX . $userId;

            // 获取当前用户的任务变更临时数据
            $userTasksTemp = Cache::get($tempKey, []);

            // 构建任务变更数据
            $taskData = [
                'task_id' => $taskId,
                'task_name' => $taskName,
                'change_type' => 'progress_updated',
                'status' => 'in_progress',
                'progress' => $progress,
                'progress_details' => $progressDetails,
                'updated_at' => time(),
            ];

            // 使用任务ID作为键，避免同一任务的多次变更相互覆盖
            $userTasksTemp[$taskId] = $taskData;

            // 将更新后的数据存回临时存储
            Cache::put($tempKey, $userTasksTemp, self::TEMP_TTL);

            Log::info('任务进度更新数据已临时存储', [
                'user_id' => $userId,
                'task_id' => $taskId,
                'task_name' => $taskName,
                'progress' => $progress,
            ]);
        } catch (\Exception $e) {
            Log::error('任务进度更新数据临时存储失败', [
                'error' => $e->getMessage(),
                'user_id' => $userId,
                'task_id' => $taskId,
            ]);
        }
    }

    /**
     * 获取用户的任务变更临时数据
     *
     * @param int $userId 用户ID
     * @return TaskChangeTempDto[] 用户的任务变更数据
     */
    public static function getUserTaskChanges(int $userId): array
    {
        $tempKey = self::TEMP_KEY_PREFIX . $userId;
        $rawData = Cache::get($tempKey, []);

        $result = [];
        foreach ($rawData as $taskId => $taskData) {
            $result[] = TaskChangeTempDto::fromArray($taskData);
        }

        return $result;
    }

    /**
     * 获取用户指定任务的变更临时数据
     *
     * @param int $userId 用户ID
     * @param int $taskId 任务ID
     * @return TaskChangeTempDto|null 任务变更数据
     */
    public static function getUserTaskChange(int $userId, int $taskId): ?TaskChangeTempDto
    {
        $tempKey = self::TEMP_KEY_PREFIX . $userId;
        $rawData = Cache::get($tempKey, []);

        if (isset($rawData[$taskId])) {
            return TaskChangeTempDto::fromArray($rawData[$taskId]);
        }

        return null;
    }

    /**
     * 清理用户的任务变更临时数据
     *
     * @param int $userId 用户ID
     * @return void
     */
    public static function clearUserTaskChanges(int $userId): void
    {
        $tempKey = self::TEMP_KEY_PREFIX . $userId;
        \Illuminate\Support\Facades\Cache::forget($tempKey);

        Log::info('已清理用户任务变更临时数据', ['user_id' => $userId]);
    }

    /**
     * 清理用户指定任务的变更临时数据
     *
     * @param int $userId 用户ID
     * @param int $taskId 任务ID
     * @return void
     */
    public static function clearUserTaskChange(int $userId, int $taskId): void
    {
        $tempKey = self::TEMP_KEY_PREFIX . $userId;
        $rawData = Cache::get($tempKey, []);

        if (isset($rawData[$taskId])) {
            unset($rawData[$taskId]);
            Cache::put($tempKey, $rawData, self::TEMP_TTL);

            Log::info('已清理用户指定任务变更临时数据', [
                'user_id' => $userId,
                'task_id' => $taskId
            ]);
        }
    }
}