package parser

import (
	"errors"
	"time"
)

const (
	FlopRegex        = `(?m)^\((?P<flop>\w{3})-.*`
	DestinationRegex = `(?P<dest>[A-Z]+)(?P<time>\d{0,4})?`
	DOFRegex         = `(?P<dof>\w+)/(?P<time>\d{6})`
	TypeArrival      = "ARR"
)

func parseArr(telegram *Telegram, data string) {
	values := getFlopValues(data)
	l := len(values)
	if l < 4 {
		telegram.ParseErrors = append(telegram.ParseErrors, errors.New("arrival data less than 4 "))
		return
	}
	telegram.FlightNumber, telegram.RegisterNumber = parseFlight(values[1])
	telegram.Departure = values[2]
	telegram.Destination, telegram.DestinationTime = getAirportAndTime(values[3])
	if l == 5 {
		parseDof(telegram, values[4])
	}
	telegram.Parsed = true
}

func parseDof(telegram *Telegram, text string) {
	if dof := getFields(DOFRegex, text); dof["dof"] == "DOF" {
		telegram.DateOfFlight, _ = time.Parse("060102", dof["time"])
	}
}