package domain

import (
	"errors"
	"time"
)

var ErrInvalidPointHistory = errors.New("histórico de pontos inválido")

type Point struct {
	OccurredAt time.Time
}

// Workday são os pontos de um dia, em ordem.
type Workday struct {
	Points   []Point
	Invalid  bool // pontos repetidos ou fora de ordem
	Overtime bool // mais de quatro pontos (hora extra, fora do escopo)
}

func (w Workday) Count() int { return len(w.Points) }

func (w Workday) Entry1() time.Time { return w.Points[0].OccurredAt }
func (w Workday) Exit1() time.Time  { return w.Points[1].OccurredAt }
func (w Workday) Entry2() time.Time { return w.Points[2].OccurredAt }
func (w Workday) Exit2() time.Time  { return w.Points[3].OccurredAt }