package parking

import (
	"testing"

	"github.com/stretchr/testify/require"
)

type gateControllerStub struct {
	openDevice  string
	closeDevice string
	openTime    byte
	closeTime   byte
}

func (s *gateControllerStub) OpenGate(deviceCode string, validTime byte) error {
	s.openDevice = deviceCode
	s.openTime = validTime
	return nil
}

func (s *gateControllerStub) CloseGate(deviceCode string, validTime byte) error {
	s.closeDevice = deviceCode
	s.closeTime = validTime
	return nil
}

func (s *gateControllerStub) IsGateConnected(string) bool { return true }

func TestPassageServiceUsesUnifiedGateController(t *testing.T) {
	previous := currentGateController()
	stub := &gateControllerStub{}
	SetGateController(stub)
	t.Cleanup(func() { SetGateController(previous) })

	svc := &PassageService{}
	require.NoError(t, svc.OpenGateByDeviceCode("GATE-01", 0))
	require.NoError(t, svc.CloseGateByDeviceCode("GATE-01", 5))

	require.Equal(t, "GATE-01", stub.openDevice)
	require.Equal(t, defaultGateValidTime, stub.openTime)
	require.Equal(t, "GATE-01", stub.closeDevice)
	require.Equal(t, byte(5), stub.closeTime)
}

func TestPassageServiceRejectsEmptyGateDevice(t *testing.T) {
	svc := &PassageService{}
	require.Error(t, svc.OpenGateByDeviceCode("", 2))
	require.Error(t, svc.CloseGateByDeviceCode("", 2))
}

func TestSimulatedGateController(t *testing.T) {
	controller := NewSimulatedGateController()
	require.True(t, controller.IsGateConnected("GATE-SIM-01"))
	require.False(t, controller.IsGateConnected(""))
	require.NoError(t, controller.OpenGate("GATE-SIM-01", 2))
	require.Equal(t, "open", controller.lastAction["GATE-SIM-01"])
	require.NoError(t, controller.CloseGate("GATE-SIM-01", 2))
	require.Equal(t, "close", controller.lastAction["GATE-SIM-01"])
	require.Error(t, controller.OpenGate("", 2))
}

func TestGetGateRuntimeStatus(t *testing.T) {
	previous := currentGateController()
	controller := NewSimulatedGateController()
	SetGateController(controller)
	t.Cleanup(func() { SetGateController(previous) })

	status := GetGateRuntimeStatus("GATE-SIM-01")
	require.True(t, status.Connected)
	require.True(t, status.Simulated)
	require.Equal(t, GateRuntimeStatus{}, GetGateRuntimeStatus(""))
}