cache

type CacheService interface {
	// Get retrieves a value from cache.
	// Returns: value, whether it exists
	Get(ctx context.Context, key string) ([]byte, bool)

	// Set stores a value in cache.
	// ttl: expiration time
	Set(ctx context.Context, key string, value []byte, ttl time.Duration) error

	// Invalidate invalidates cache entries.
	// pattern: supports wildcards (user:123:*)
	Invalidate(ctx context.Context, pattern string) error
}

type EmbeddingService interface {
	// Embed generates a vector embedding for the given text.
	Embed(ctx context.Context, text string) ([]float32, error)

	// EmbedBatch generates vector embeddings for multiple texts.
	EmbedBatch(ctx context.Context, texts []string) ([][]float32, error)
}

type LRUCache struct {
	// contains filtered or unexported fields
}

type MockCacheService struct {
	// contains filtered or unexported fields
}

type SemanticCache struct {
	// contains filtered or unexported fields
}

type SemanticCacheConfig struct {
	// MaxEntries is the maximum number of entries in the cache.
	MaxEntries int

	// SimilarityThreshold is the minimum cosine similarity for a match (0-1).
	SimilarityThreshold float32

	// TTL is the time-to-live for cache entries.
	TTL time.Duration

	// EmbeddingService is the vector embedding service.
	EmbeddingService EmbeddingService
}

type SemanticCacheStats struct {
	ExactHits              int64
	ExactMisses            int64
	SemanticHits           int64
	SemanticMisses         int64
	SemanticSize           int
	SimilarityDistribution map[string]int64
}

type Service struct {
	// contains filtered or unexported fields
}

type ServiceConfig struct {
	Capacity        int           // Maximum number of entries (default: 1000)
	DefaultTTL      time.Duration // Default TTL for entries (default: 5 minutes)
	CleanupInterval time.Duration // Interval for expired entry cleanup (default: 1 minute)
}