package ws2812

import (
	"machine"
)

type WS2812 struct {
	Pin machine.GPIO
}

func New(pin machine.GPIO) WS2812 {
	return WS2812{pin}
}

// Write the raw bitstring out using the WS2812 protocol.
func (p WS2812) Write(buf []byte) {
	for _, c := range buf {
		p.WriteByte(c)
	}
}

// Write the given color slice out using the WS2812 protocol.
// Colors are specified in RGB format, and are send out in the common GRB
// format.
func (p WS2812) WriteColors(buf []uint32) {
	for _, color := range buf {
		p.WriteByte(byte(color >> 8))  // green
		p.WriteByte(byte(color >> 16)) // red
		p.WriteByte(byte(color >> 0))  // blue
	}
}