config

type CacheConfig struct {
	TTL    string `koanf:"ttl"`
	Folder string `koanf:"folder"`
}

type CacheRule struct {
	BaseURI     string   `koanf:"base_uri"`
	Methods     []string `koanf:"methods"`
	StatusCodes []string `koanf:"status_codes,omitempty"` // e.g., ["200", "404", "4xx", "5xx"]
}

type Config struct {
	Server ServerConfig `koanf:"server"`
	Cache  CacheConfig  `koanf:"cache"`
	Rules  RulesConfig  `koanf:"rules"`
	Log    LogConfig    `koanf:"log"`
}

type HTTPConfig struct {
	Address string `koanf:"address"`
}

type HTTPSConfig struct {
	Enabled     bool              `koanf:"enabled"`
	CAKeyFile   string            `koanf:"ca_key_file"`
	CACertFile  string            `koanf:"ca_cert_file"`
	Transparent TransparentConfig `koanf:"transparent"`
}

type LogConfig struct {
	Level      string `koanf:"level"`
	ThirdParty bool   `koanf:"third_party"`
}

type RulesConfig struct {
	Mode  RulesMode   `koanf:"mode"` // "whitelist" or "blacklist"
	Rules []CacheRule `koanf:"rules"`
}

type RulesMode string

type ServerConfig struct {
	HTTP  HTTPConfig  `koanf:"http"`
	HTTPS HTTPSConfig `koanf:"https"`
}

type TransparentConfig struct {
	Address string `koanf:"address"`
}