cache

type Cache interface {
	// Get retrieves a value from the cache
	Get(ctx context.Context, key string) ([]byte, error)
	// Set stores a value in the cache with TTL
	Set(ctx context.Context, key string, value []byte, ttl time.Duration) error
	// Delete removes a value from the cache
	Delete(ctx context.Context, key string) error
	// Exists checks if a key exists
	Exists(ctx context.Context, key string) (bool, error)
	// Clear removes all keys matching a pattern
	Clear(ctx context.Context, pattern string) error
	// Close closes the cache connection
	Close() error
	// Ping checks cache connectivity
	Ping(ctx context.Context) error
	// Stats returns cache statistics
	Stats(ctx context.Context) (*Stats, error)
}

type Config struct {
	// Type: none (disabled), memory (default), valkey, redis
	Type string `yaml:"type"`

	// Connection URL (takes precedence over host/port)
	URL string `yaml:"url"`

	// Individual connection settings
	Host     string `yaml:"host"`
	Port     int    `yaml:"port"`
	Password string `yaml:"password"`
	DB       int    `yaml:"db"`

	// Pool settings
	PoolSize int           `yaml:"pool_size"`
	MinIdle  int           `yaml:"min_idle"`
	Timeout  time.Duration `yaml:"timeout"`

	// Key prefix
	Prefix string `yaml:"prefix"`

	// Default TTL
	TTL int `yaml:"ttl"` // seconds

	// Cluster mode
	Cluster      bool     `yaml:"cluster"`
	ClusterNodes []string `yaml:"cluster_nodes"`

	// Memory cache specific
	MaxSize int `yaml:"max_size"` // Max items for memory cache
}

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

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

type RedisConfig struct {
	// Type: "redis" or "valkey" (same library, just for clarity)
	Type string

	// Connection URL (takes precedence over host/port)
	// Format: redis://user:password@host:port/db or valkey://...
	URL string

	// Individual connection settings
	Host     string
	Port     int
	Password string
	DB       int

	// Pool settings
	PoolSize int
	MinIdle  int
	Timeout  time.Duration

	// Key prefix
	Prefix string

	// Cluster mode
	Cluster      bool
	ClusterNodes []string
}

type Stats struct {
	Hits       int64  `json:"hits"`
	Misses     int64  `json:"misses"`
	Keys       int64  `json:"keys"`
	MemoryUsed int64  `json:"memory_used"`
	Connected  bool   `json:"connected"`
	Backend    string `json:"backend"`
}