downloader

type Downloader struct {
	// contains filtered or unexported fields
}

type Elem interface {
	File() File
	To() io.WriterAt

	AsTakeout() bool
}

type File interface {
	Location() tg.InputFileLocationClass
	Size() int64
	DC() int
}

type Iter interface {
	Next(ctx context.Context) bool
	Value() Elem
	Err() error
}

type Options struct {
	Pool     dcpool.Pool
	PartSize int
	Threads  int
	Iter     Iter
	Progress Progress
}

type Progress interface {
	OnAdd(elem Elem)
	OnDownload(elem Elem, state ProgressState)
	OnDone(elem Elem, err error)
}

type ProgressState struct {
	Downloaded int64
	Total      int64
}