<?php

namespace App\Module\Activity\Logics;

use App\Module\Activity\Dtos\ActivityRewardDto;
use App\Module\Activity\Enums\REWARD_STATUS;
use App\Module\Activity\Models\ActivityConfig;
use App\Module\Activity\Models\ActivityParticipation;
use App\Module\Game\Enums\REWARD_SOURCE_TYPE;
use Exception;
use Illuminate\Support\Facades\Log;

/**
 * 奖励逻辑类
 */
class RewardLogic
{
    /**
     * 检查用户是否可以领取活动奖励
     *
     * @param int $userId 用户ID
     * @param int $activityId 活动ID
     * @return bool
     */
    public function canClaimReward(int $userId, int $activityId): bool
    {
        // 获取用户参与记录
        $participation = ActivityParticipation::where('user_id', $userId)
            ->where('activity_id', $activityId)
            ->first();

        if (!$participation) {
            return false;
        }

        // 检查是否已完成且未领取奖励
        return $participation->completion_status === 1 && $participation->reward_status === REWARD_STATUS::NOT_CLAIMED;
    }

    /**
     * 标记奖励为已领取
     *
     * @param int $userId 用户ID
     * @param int $activityId 活动ID
     * @return bool
     * @throws Exception
     */
    public function markRewardAsClaimed(int $userId, int $activityId): bool
    {
        // 获取用户参与记录
        $participation = ActivityParticipation::where('user_id', $userId)
            ->where('activity_id', $activityId)
            ->first();

        if (!$participation) {
            throw new Exception('用户未参与此活动');
        }

        if ($participation->completion_status !== 1) {
            throw new Exception('活动未完成，无法领取奖励');
        }

        if ($participation->reward_status === REWARD_STATUS::CLAIMED) {
            throw new Exception('奖励已领取');
        }

        // 更新奖励状态为已领取
        $participation->reward_status = REWARD_STATUS::CLAIMED;

        return $participation->save();
    }

    /**
     * 标记奖励为已过期
     *
     * @param int $userId 用户ID
     * @param int $activityId 活动ID
     * @return bool
     * @throws Exception
     */
    public function markRewardAsExpired(int $userId, int $activityId): bool
    {
        // 获取用户参与记录
        $participation = ActivityParticipation::where('user_id', $userId)
            ->where('activity_id', $activityId)
            ->first();

        if (!$participation) {
            throw new Exception('用户未参与此活动');
        }

        if ($participation->reward_status !== REWARD_STATUS::NOT_CLAIMED) {
            throw new Exception('奖励状态不是未领取，无法标记为已过期');
        }

        // 更新奖励状态为已过期
        $participation->reward_status = REWARD_STATUS::EXPIRED;

        return $participation->save();
    }

    /**
     * 获取活动奖励信息
     *
     * @param int $activityId 活动ID
     * @return ActivityRewardDto|null
     */
    public function getActivityReward(int $activityId): ?ActivityRewardDto
    {
        // 获取活动信息
        $activity = ActivityConfig::find($activityId);

        if (!$activity) {
            return null;
        }

        // 如果活动没有配置奖励组，返回空
        if (!$activity->reward_group_id && !$activity->reward_group_code) {
            return null;
        }

        // 创建奖励DTO
        $rewardDto = ActivityRewardDto::create(
            $activity->reward_group_id,
            $activity->reward_group_code
        );

        // 尝试获取奖励组信息
        try {
            // 这里应该调用奖励组服务获取奖励组信息
            // 由于没有实际的奖励组服务，这里只返回基本信息
            $rewardDto->rewardGroupName = '活动奖励';
            $rewardDto->rewardGroupDescription = '完成活动获得的奖励';

            // 模拟奖励项
            $rewardDto->rewardItems = [
                [
                    'type' => 'item',
                    'id' => 1001,
                    'name' => '金币',
                    'quantity' => 100
                ]
            ];
        } catch (Exception $e) {
            Log::error('获取奖励组信息失败', [
                'activity_id' => $activityId,
                'reward_group_id' => $activity->reward_group_id,
                'reward_group_code' => $activity->reward_group_code,
                'error' => $e->getMessage()
            ]);
        }

        return $rewardDto;
    }

    /**
     * 发放活动奖励
     *
     * @param int $userId 用户ID
     * @param int $activityId 活动ID
     * @return array 奖励结果
     * @throws Exception
     */
    public function grantActivityReward(int $userId, int $activityId): array
    {
        // 获取活动信息
        $activity = ActivityConfig::find($activityId);

        if (!$activity) {
            throw new Exception('活动不存在');
        }

        // 如果活动没有配置奖励组，返回空结果
        if (!$activity->reward_group_id && !$activity->reward_group_code) {
            return [
                'success' => true,
                'message' => '活动未配置奖励',
                'rewards' => []
            ];
        }

        // 尝试发放奖励
        try {
            // 使用奖励组服务发放奖励
            $rewardGroupId = $activity->reward_group_id;
            $rewardGroupCode = $activity->reward_group_code;

            // 调用奖励组服务
            $rewardService = new \App\Module\Game\Services\RewardService();
            $rewardResult = $rewardService::grantReward(
                $userId,
                $rewardGroupId ?: $rewardGroupCode,
                REWARD_SOURCE_TYPE::ACTIVITY,
                $activity->id
            );

            if ($rewardResult->success) {
                return [
                    'success' => true,
                    'message' => '奖励发放成功',
                    'rewards' => $rewardResult->items
                ];
            } else {
                return [
                    'success' => false,
                    'message' => $rewardResult->errorMessage,
                    'rewards' => []
                ];
            }
        } catch (Exception $e) {
            Log::error('发放活动奖励失败', [
                'user_id' => $userId,
                'activity_id' => $activityId,
                'error' => $e->getMessage()
            ]);

            throw new Exception('发放奖励失败: ' . $e->getMessage());
        }
    }
}