package config

// mapFetcher provides an implementation of the Fetcher interface by wrapping
// the `map[string]string` type.
type mapFetcher map[string]string

func MapFetcher(m map[string]string) Fetcher {
	return mapFetcher(m)
}

// Get implements the func `Fetcher.Get`.
func (m mapFetcher) Get(key string) (val string, ok bool) {
	val, ok = m[key]
	return
}

func (m mapFetcher) All() map[string]string {
	newmap := make(map[string]string)
	for key, value := range m {
		newmap[key] = value
	}
	return newmap
}

func (m mapFetcher) set(key, value string) {
	m[key] = value
}

func (m mapFetcher) del(key string) {
	delete(m, key)
}