Server/device/flags.go

package device

import "math/bits"

type SupportFlags uint32

func (f SupportFlags) HasAny(d SupportFlags) bool {
	return (f & d) != 0
}

func (f SupportFlags) HasAll(d SupportFlags) bool {
	return bits.OnesCount32(uint32(f&d)) == bits.OnesCount32(uint32(d))
}

const (
	SFlagPower SupportFlags = 1 << iota
	SFlagIntensity
	SFlagColor
	SFlagTemperature
	SFlagSensorButtons
	SFlagSensorTemperature
	SFlagSensorLightLevel
	SFlagSensorPresence
)

// ColorFlag is primarily to detect warm-white lights, as XY/RGB/HS/HSK can convert without trouble.
type ColorFlag uint32

const (
	CFlagXY ColorFlag = 1 << iota
	CFlagRGB
	CFlagHS
	CFlagHSK
	CFlagKelvin
)

func (f ColorFlag) IsColor() bool {
	return f.HasAny(CFlagXY | CFlagRGB | CFlagHS | CFlagHSK)
}

func (f ColorFlag) IsWarmWhite() bool {
	return f&CFlagKelvin == CFlagKelvin
}

func (f ColorFlag) IsColorOnly() bool {
	return f != 0 && f&CFlagKelvin == 0
}

func (f ColorFlag) IsWarmWhiteOnly() bool {
	return f == CFlagKelvin
}

func (f ColorFlag) HasAny(d ColorFlag) bool {
	return (f & d) != 0
}

func (f ColorFlag) HasAll(d ColorFlag) bool {
	return bits.OnesCount32(uint32(f&d)) == bits.OnesCount32(uint32(d))
}