package airport

import (
	"math/rand"
	"time"
)

var distantFuture = time.Unix(1<<63-1, 0) // Max value for Unix timestamp

type GateNumber int

type Gate struct {
	id                      GateNumber
	walkingTimeFromSecurity time.Duration
	taxiTimeToRunway        time.Duration
	//TODO: extend
}

var _ BaggageProcessor = &Gate{}

func NewGate(id GateNumber, walkingTimeFromSecurity time.Duration, taxiTimeToRunway time.Duration) Gate {

	return Gate{id,
		walkingTimeFromSecurity,
		taxiTimeToRunway,
	}
}

func NewGates(count int) map[GateNumber]*Gate {
	gates := make(map[GateNumber]*Gate)
	for i := range count {
		walkingTime := time.Duration(5+rand.Intn(6)) * time.Second
		taxiTime := time.Duration(5+rand.Intn(6)) * time.Second

		gate := NewGate(GateNumber(i+1), walkingTime, taxiTime)
		gates[GateNumber(i+1)] = &gate
	}
	return gates
}

func (g *Gate) SetFlights(flights []Flight) {
	//TODO: implement
}

// Blocks for the walking distance to the gate + the time until the passenger has boarded
func (g *Gate) Process(passenger Passenger) error {
	//TODO: implement
	return nil
}

// Blocks until departure (includes taxi time to runway)
func (g *Gate) ProcessAircraft(ac *Aircraft) {
	//TODO: implement
}

func (g *Gate) ProcessBaggage(fn FlightNumber, b Baggage) error {
	//TODO: implement
	return nil
}

func (g Gate) Start() {
	//TODO: implement
}