package scene

import (
	"git.aiterp.net/lucifer/new-server/models"
	"time"
)

type Scene struct {
	startTime time.Time
	duration  time.Duration
	tag       string
	data      models.Scene
	roleList  [][]models.Device
	deviceMap map[int]*models.Device
	roleMap   map[int]int
	changes   map[int]models.NewDeviceState
}

func (s *Scene) UpdateScene(scene models.Scene) {
	s.data = scene
	s.roleMap = make(map[int]int)

	for _, device := range s.deviceMap {
		s.moveDevice(*device)
	}
}

func (s *Scene) UpsertDevice(device models.Device) {
	s.deviceMap[device.ID] = &device
	s.moveDevice(device)
}

func (s *Scene) RemoveDevice(device models.Device) {
	delete(s.deviceMap, device.ID)
	delete(s.roleMap, device.ID)
}

func (s *Scene) runRole(index int) {

}

func (s *Scene) moveDevice(device models.Device, run bool) {
	oldRole, hasOldRole := s.roleMap[device.ID]
	newRole := s.data.RoleIndex(&device)

	if hasOldRole && oldRole == newRole {
		return
	}

	if hasOldRole {
		for i, device2 := range s.roleList[oldRole] {
			if device2.ID == device.ID {
				s.roleList[oldRole] = append(s.roleList[oldRole][:i], s.roleList[oldRole][i+1:]...)
				break
			}
		}

		s.runRole(oldRole)
	}

	s.roleMap[device.ID] = newRole
	s.runRole(newRole)
}

func (s *Scene) intervalNumber() int64 {
	intervalDuration := time.Duration(s.data.IntervalMS) * time.Millisecond

	return int64(time.Since(s.startTime) / intervalDuration)
}

func (s *Scene) intervalFac() float64 {
	return clamp(float64(time.Since(s.startTime)) / float64(s.duration))
}

func (s *Scene) positionFac(i, len int) float64 {
	return clamp(float64(i) / float64(len))
}

func clamp(fac float64) float64 {
	if fac > 1.00 {
		return 1.00
	} else if fac < 0.00 {
		return 0.00
	} else {
		return fac
	}
}