package vehicle

import (
	"testing"
	"time"

	"github.com/stretchr/testify/require"
	"wails-app/internal/dao"
	"wails-app/internal/global"
	"wails-app/internal/model/vehicle/request"
	parkingSessionService "wails-app/internal/modules/parking-session/service"
)

func setFullLotPolicies(t *testing.T, temporary, monthly, vip bool) {
	t.Helper()
	require.NoError(t, global.GVA_DB.Model(&dao.ParkingLot{}).Where("id = ?", 1).Updates(map[string]interface{}{
		"capacity": 0, "occupied": 0, "available": 0,
		"allow_temporary_when_full": temporary,
		"allow_monthly_when_full":   monthly,
		"allow_vip_when_full":       vip,
	}).Error)
}

func TestVehicleEntryRejectsTemporaryVehicleWhenLotIsFull(t *testing.T) {
	svc := setupVehiclePaymentTest(t)
	setFullLotPolicies(t, false, true, true)
	vehicleType := &dao.VehicleType{Name: "临时车", IsSystem: true}
	require.NoError(t, global.GVA_DB.Create(vehicleType).Error)
	require.NoError(t, global.GVA_DB.Create(&dao.Vehicle{PlateNumber: "TEMP-FULL", VehicleTypeID: vehicleType.ID}).Error)

	_, err := svc.VehicleEntry(request.VehicleEntry{PlateNumber: "TEMP-FULL", ParkingLotID: 1})
	require.ErrorIs(t, err, parkingSessionService.ErrParkingLotFull)

	var sessionCount, ticketCount int64
	require.NoError(t, global.GVA_DB.Model(&dao.VehicleRecord{}).Count(&sessionCount).Error)
	require.NoError(t, global.GVA_DB.Model(&dao.DigitalTicket{}).Count(&ticketCount).Error)
	require.Zero(t, sessionCount)
	require.Zero(t, ticketCount)
}

func TestVehicleEntryAllowsValidMonthlyVehicleWhenLotIsFull(t *testing.T) {
	svc := setupVehiclePaymentTest(t)
	setFullLotPolicies(t, false, true, false)
	vehicleType := &dao.VehicleType{Name: "月租车型"}
	require.NoError(t, global.GVA_DB.Create(vehicleType).Error)
	vehicle := &dao.Vehicle{PlateNumber: "MONTHLY-FULL", VehicleTypeID: vehicleType.ID}
	require.NoError(t, global.GVA_DB.Create(vehicle).Error)
	require.NoError(t, global.GVA_DB.Create(&dao.MonthlyCard{
		VehicleID: vehicle.ID, StartDate: time.Now().Add(-time.Hour), EndDate: time.Now().Add(time.Hour), PaymentStatus: "paid",
	}).Error)

	_, err := svc.VehicleEntry(request.VehicleEntry{PlateNumber: vehicle.PlateNumber, ParkingLotID: 1})
	require.NoError(t, err)

	var lot dao.ParkingLot
	require.NoError(t, global.GVA_DB.First(&lot, 1).Error)
	require.Equal(t, 1, lot.Occupied)
	require.Zero(t, lot.Available)
}

func TestVehicleEntryAllowsValidVIPVehicleWhenLotIsFull(t *testing.T) {
	svc := setupVehiclePaymentTest(t)
	setFullLotPolicies(t, false, false, true)
	owner := &dao.Owner{OwnerName: "VIP车主", IsVip: true, VipExpireTime: time.Now().Add(time.Hour)}
	require.NoError(t, global.GVA_DB.Create(owner).Error)
	vehicleType := &dao.VehicleType{Name: "VIP车型"}
	require.NoError(t, global.GVA_DB.Create(vehicleType).Error)
	vehicle := &dao.Vehicle{PlateNumber: "VIP-FULL", VehicleTypeID: vehicleType.ID, OwnerId: &owner.ID}
	require.NoError(t, global.GVA_DB.Create(vehicle).Error)

	_, err := svc.VehicleEntry(request.VehicleEntry{PlateNumber: vehicle.PlateNumber, ParkingLotID: 1})
	require.NoError(t, err)
}