cli

type RosterEdit struct {
	// FileName is the name of the file containing the roster information.
	FileName string
	// Roster contains the state of the roster at the time of writing the
	// file. It's what we diff against when reading the file.
	Roster []data.RosterEntry
	// isComplete is true if this is the result of reading an edited
	// roster, rather than a report that the file has been written.
	IsComplete bool
	// contents contains the edited roster, if isComplete is true.
	Contents []byte
}

type RosterEditor struct {
	Roster []data.RosterEntry

	// pendingRosterEdit, if non-nil, contains information about a pending
	// roster edit operation.
	PendingRosterEdit *RosterEdit
	// pendingRosterChan is the channel over which roster edit information
	// is received.
	PendingRosterChan chan *RosterEdit
}

type UI interface {
	Loop()
}