config

type CacheConfig struct {
	// MaxSize is the maximum cache size in bytes (default: 10GB)
	MaxSize int64 `yaml:"max_size"`
	// MaxSizeGB is an alternative way to specify max size in GB for YAML config
	MaxSizeGB int64 `yaml:"max_size_gb"`
	// TTL is the time-to-live for cached items (default: 7 days)
	TTL time.Duration `yaml:"ttl"`
	// TTLHours is an alternative way to specify TTL in hours for YAML config
	TTLHours int `yaml:"ttl_hours"`
	// CleanupInterval is the interval between cleanup runs (default: 1 hour)
	CleanupInterval time.Duration `yaml:"cleanup_interval"`
	// CleanupIntervalMin is an alternative way to specify cleanup interval in minutes for YAML config
	CleanupIntervalMin int `yaml:"cleanup_interval_min"`
}

type Config struct {
	Debug                   bool           `yaml:"debug"`
	CacheDir                string         `yaml:"cache_dir"`
	Mode                    int            `yaml:"mode"`
	Listen                  string         `yaml:"listen"`
	Mirrors                 MirrorConfig   `yaml:"mirrors"`
	Cache                   CacheConfig    `yaml:"cache"`
	TLS                     TLSConfig      `yaml:"tls"`
	Security                SecurityConfig `yaml:"security"`
	DistributionsConfigPath string         `yaml:"distributions_config"`
	// UpstreamKeepAlive enables HTTP keep-alive to upstream mirrors (default true).
	UpstreamKeepAlive bool `yaml:"upstream_keep_alive"`
	// AsyncBenchmark enables background mirror benchmarking on startup (default true).
	// Set to false to skip benchmarking and use the specified/default mirror immediately.
	AsyncBenchmark bool `yaml:"async_benchmark"`
	// DisableBuiltinDistros disables registration of built-in distributions (ubuntu, debian, centos, alpine).
	// Useful when only custom distributions from distributions.yaml are needed.
	DisableBuiltinDistros bool `yaml:"disable_builtin_distros"`
}

type MirrorConfig struct {
	Ubuntu      string `yaml:"ubuntu"`
	UbuntuPorts string `yaml:"ubuntu_ports"`
	Debian      string `yaml:"debian"`
	CentOS      string `yaml:"centos"`
	Alpine      string `yaml:"alpine"`
}

type SecurityConfig struct {
	// APIKey is the key required for accessing protected API endpoints.
	// If empty, API authentication is disabled.
	APIKey string `yaml:"api_key"`
	// EnableAPIAuth enables API authentication when APIKey is set.
	EnableAPIAuth bool `yaml:"enable_api_auth"`
	// APIRateLimitPerMinute limits API requests per IP per minute (0 = disabled). Default 60.
	APIRateLimitPerMinute int `yaml:"api_rate_limit_per_minute"`
}

type TLSConfig struct {
	// Enabled indicates whether TLS is enabled
	Enabled bool `yaml:"enabled"`
	// CertFile is the path to the TLS certificate file
	CertFile string `yaml:"cert_file"`
	// KeyFile is the path to the TLS private key file
	KeyFile string `yaml:"key_file"`
}

type YAMLConfig struct {
	Server struct {
		Host  string `yaml:"host"`
		Port  string `yaml:"port"`
		Debug bool   `yaml:"debug"`
	} `yaml:"server"`

	Cache struct {
		Dir                string `yaml:"dir"`
		MaxSizeGB          int64  `yaml:"max_size_gb"`
		TTLHours           int    `yaml:"ttl_hours"`
		CleanupIntervalMin int    `yaml:"cleanup_interval_min"`
	} `yaml:"cache"`

	Mirrors struct {
		Ubuntu      string `yaml:"ubuntu"`
		UbuntuPorts string `yaml:"ubuntu_ports"`
		Debian      string `yaml:"debian"`
		CentOS      string `yaml:"centos"`
		Alpine      string `yaml:"alpine"`
	} `yaml:"mirrors"`

	TLS struct {
		Enabled  bool   `yaml:"enabled"`
		CertFile string `yaml:"cert_file"`
		KeyFile  string `yaml:"key_file"`
	} `yaml:"tls"`

	Security struct {
		APIKey                string `yaml:"api_key"`
		EnableAPIAuth         bool   `yaml:"enable_api_auth"`
		APIRateLimitPerMinute int    `yaml:"api_rate_limit_per_minute"`
	} `yaml:"security"`

	Mode                string `yaml:"mode"`
	DistributionsConfig string `yaml:"distributions_config"`
}