package polling

import (
	"context"
	"time"

	"go.uber.org/zap"

	"github.com/break/junhong_cmp_fiber/internal/model"
	"github.com/break/junhong_cmp_fiber/pkg/constants"
)

// OnCardCreated 卡创建时的回调
// 将新卡加入轮询队列
func (s *Scheduler) OnCardCreated(ctx context.Context, card *model.IotCard) {
	if card == nil {
		return
	}

	s.logger.Debug("卡创建回调", zap.Uint("card_id", card.ID))

	if err := s.initCardPolling(ctx, card); err != nil {
		s.logger.Error("初始化新卡轮询失败",
			zap.Uint("card_id", card.ID),
			zap.Error(err))
	}
}

// OnBatchCardsCreated 批量卡创建时的回调
func (s *Scheduler) OnBatchCardsCreated(ctx context.Context, cards []*model.IotCard) {
	if len(cards) == 0 {
		return
	}

	s.logger.Info("批量卡创建回调", zap.Int("count", len(cards)))

	for _, card := range cards {
		if err := s.initCardPolling(ctx, card); err != nil {
			s.logger.Warn("初始化批量导入卡轮询失败",
				zap.Uint("card_id", card.ID),
				zap.Error(err))
		}
	}
}

// OnCardStatusChanged 卡状态变化时的回调
// 重新匹配配置并更新轮询队列
func (s *Scheduler) OnCardStatusChanged(ctx context.Context, cardID uint) {
	s.logger.Debug("卡状态变化回调", zap.Uint("card_id", cardID))

	// 从数据库重新加载卡信息
	card, err := s.iotCardStore.GetByID(ctx, cardID)
	if err != nil {
		s.logger.Error("加载卡信息失败",
			zap.Uint("card_id", cardID),
			zap.Error(err))
		return
	}

	// 先从所有队列中移除
	s.removeFromAllQueues(ctx, cardID)

	// 重新初始化轮询
	if err := s.initCardPolling(ctx, card); err != nil {
		s.logger.Error("重新初始化卡轮询失败",
			zap.Uint("card_id", cardID),
			zap.Error(err))
	}
}

// OnCardDeleted 卡删除时的回调
// 从轮询队列中移除
func (s *Scheduler) OnCardDeleted(ctx context.Context, cardID uint) {
	s.logger.Debug("卡删除回调", zap.Uint("card_id", cardID))

	// 从所有队列中移除
	s.removeFromAllQueues(ctx, cardID)

	// 删除缓存
	key := constants.RedisPollingCardInfoKey(cardID)
	if err := s.redis.Del(ctx, key).Err(); err != nil {
		s.logger.Warn("删除卡缓存失败",
			zap.Uint("card_id", cardID),
			zap.Error(err))
	}
}

// OnCardEnabled 卡启用轮询时的回调
func (s *Scheduler) OnCardEnabled(ctx context.Context, cardID uint) {
	s.logger.Debug("卡启用轮询回调", zap.Uint("card_id", cardID))

	// 从数据库加载卡信息
	card, err := s.iotCardStore.GetByID(ctx, cardID)
	if err != nil {
		s.logger.Error("加载卡信息失败",
			zap.Uint("card_id", cardID),
			zap.Error(err))
		return
	}

	// 初始化轮询
	if err := s.initCardPolling(ctx, card); err != nil {
		s.logger.Error("启用卡轮询失败",
			zap.Uint("card_id", cardID),
			zap.Error(err))
	}
}

// OnCardDisabled 卡禁用轮询时的回调
func (s *Scheduler) OnCardDisabled(ctx context.Context, cardID uint) {
	s.logger.Debug("卡禁用轮询回调", zap.Uint("card_id", cardID))

	// 从所有队列中移除
	s.removeFromAllQueues(ctx, cardID)
}

// removeFromAllQueues 从所有轮询队列中移除卡
func (s *Scheduler) removeFromAllQueues(ctx context.Context, cardID uint) {
	member := formatUint(cardID)

	queues := []string{
		constants.RedisPollingQueueRealnameKey(),
		constants.RedisPollingQueueCarddataKey(),
		constants.RedisPollingQueuePackageKey(),
	}

	for _, queueKey := range queues {
		if err := s.redis.ZRem(ctx, queueKey, member).Err(); err != nil {
			s.logger.Warn("从队列移除卡失败",
				zap.String("queue", queueKey),
				zap.Uint("card_id", cardID),
				zap.Error(err))
		}
	}
}

// RequeueCard 重新将卡加入队列
// 用于任务完成后重新入队
func (s *Scheduler) RequeueCard(ctx context.Context, cardID uint, taskType string) error {
	// 从数据库加载卡信息
	card, err := s.iotCardStore.GetByID(ctx, cardID)
	if err != nil {
		return err
	}

	// 匹配配置
	config := s.MatchConfig(card)
	if config == nil {
		return nil
	}

	now := time.Now()
	var queueKey string
	var intervalSeconds int

	switch taskType {
	case constants.TaskTypePollingRealname:
		if config.RealnameCheckInterval == nil {
			return nil
		}
		queueKey = constants.RedisPollingQueueRealnameKey()
		intervalSeconds = *config.RealnameCheckInterval
	case constants.TaskTypePollingCarddata:
		if config.CarddataCheckInterval == nil {
			return nil
		}
		queueKey = constants.RedisPollingQueueCarddataKey()
		intervalSeconds = *config.CarddataCheckInterval
	case constants.TaskTypePollingPackage:
		if config.PackageCheckInterval == nil {
			return nil
		}
		queueKey = constants.RedisPollingQueuePackageKey()
		intervalSeconds = *config.PackageCheckInterval
	default:
		return nil
	}

	nextCheck := now.Add(time.Duration(intervalSeconds) * time.Second)
	return s.addToQueue(ctx, queueKey, cardID, nextCheck)
}

// TriggerManualCheck 触发手动检查
func (s *Scheduler) TriggerManualCheck(ctx context.Context, cardID uint, taskType string) error {
	key := constants.RedisPollingManualQueueKey(taskType)
	return s.redis.RPush(ctx, key, formatUint(cardID)).Err()
}

// TriggerBatchManualCheck 批量触发手动检查
func (s *Scheduler) TriggerBatchManualCheck(ctx context.Context, cardIDs []uint, taskType string) error {
	if len(cardIDs) == 0 {
		return nil
	}

	key := constants.RedisPollingManualQueueKey(taskType)

	// 转换为 interface{} 切片
	members := make([]interface{}, len(cardIDs))
	for i, id := range cardIDs {
		members[i] = formatUint(id)
	}

	return s.redis.RPush(ctx, key, members...).Err()
}

// LazyLoad 懒加载卡信息
// 当卡未初始化但被访问时调用
func (s *Scheduler) LazyLoad(ctx context.Context, cardID uint) error {
	// 检查是否已在缓存中
	key := constants.RedisPollingCardInfoKey(cardID)
	exists, err := s.redis.Exists(ctx, key).Result()
	if err != nil {
		return err
	}

	if exists > 0 {
		return nil // 已缓存
	}

	// 从数据库加载
	card, err := s.iotCardStore.GetByID(ctx, cardID)
	if err != nil {
		return err
	}

	// 初始化轮询
	return s.initCardPolling(ctx, card)
}