loader

type Loader interface {
	// Stop the loader
	Close() error
	// Load the sources
	Load(...source.Source) error
	// A Snapshot of loaded config
	Snapshot() (*Snapshot, error)
	// Force sync of sources
	Sync() error
	// Watch for changes
	Watch(...string) (Watcher, error)

	Values(*source.ChangeSet) (reader.Values, error)
	Reader() reader.Reader
}

type Option func(o *Options)

type Options struct {
	Reader reader.Reader
	Watch  bool

	// for alternative data
	Context context.Context
}

type Snapshot struct {
	// The merged ChangeSet
	ChangeSet *source.ChangeSet
	// Deterministic and comparable version of the snapshot
	Version string
}

type Watcher interface {
	// First call to next may return the current Snapshot
	// If you are watching a path then only the data from
	// that path is returned.
	Next() (*Snapshot, error)
	// Stop watching for changes
	Stop() error
}