hosts

type Backend interface {
	// Validate checks if hostnames in /etc/hosts match the expected configuration.
	// Returns a slice of ValidationResults for any hostnames that are missing or incorrect.
	// Empty slice means all hostnames are valid.
	Validate(ctx context.Context, config HostsConfig) ([]ValidationResult, error)

	// Update adds or updates hostname entries in /etc/hosts.
	// Requires root privileges.
	Update(ctx context.Context, config HostsConfig) error

	// Remove removes hostname entries from /etc/hosts.
	// Requires root privileges.
	Remove(ctx context.Context, hostnames []string) error

	// GenerateManualInstructions generates instructions for manually updating /etc/hosts.
	GenerateManualInstructions(config HostsConfig) string
}

type Client struct{}

type HostsConfig struct {
	IPAddress string   // IP address to map hostnames to
	Hostnames []string // Hostnames to manage
}

type ValidationResult struct {
	Hostname string          // Hostname being validated
	Expected string          // Expected IP address
	Current  string          // Current IP address (empty if missing)
	State    ValidationState // Validation state
}

type ValidationState int