package wave

// State represents the consensus state for an item
type State[ID comparable] struct {
	// The item ID
	ID ID

	// Confidence score
	Confidence int

	// Whether the item is finalized
	Finalized bool

	// Parent IDs
	Parents []ID

	// Height in the consensus graph
	Height uint64
}

// NewState creates a new consensus state
func NewState[ID comparable](id ID) State[ID] {
	return State[ID]{
		ID:         id,
		Confidence: 0,
		Finalized:  false,
		Parents:    []ID{},
		Height:     0,
	}
}

// IsPreferred returns whether this state is preferred
func (s State[ID]) IsPreferred() bool {
	return s.Confidence > 0
}

// IncrementConfidence increments the confidence score
func (s *State[ID]) IncrementConfidence() {
	s.Confidence++
}

// Finalize marks the state as finalized
func (s *State[ID]) Finalize() {
	s.Finalized = true
}