config

type Config interface {
	Load() error
	Scan(v interface{}) error
	Value(key string) Value
	Watch(key string, o Observer) error
	Close() error
}

type Decoder func(*KeyValue, map[string]interface{}) error

type KeyValue struct {
	Key    string
	Value  []byte
	Format string
}

type Merge func(dst, src interface{}) error

type Observer func(string, Value)

type Option func(*options)

type Reader interface {
	Merge(...*KeyValue) error
	Value(string) (Value, bool)
	Source() ([]byte, error)
	Resolve() error
}

type Resolver func(map[string]interface{}) error

type Source interface {
	Load() ([]*KeyValue, error)
	Watch() (Watcher, error)
}

type Value interface {
	Bool() (bool, error)
	Int() (int64, error)
	Float() (float64, error)
	String() (string, error)
	Duration() (time.Duration, error)
	Slice() ([]Value, error)
	Map() (map[string]Value, error)
	Scan(interface{}) error
	Load() interface{}
	Store(interface{})
}

type Watcher interface {
	Next() ([]*KeyValue, error)
	Stop() error
}