package main

import (
	"time"
	i2c "github.com/d2r2/go-i2c"
	bh1750 "github.com/d2r2/go-bh1750"
	logger "github.com/d2r2/go-logger"
)

var lg = logger.NewPackageLogger("main",
	logger.ErrorLevel,
)

func main() {
	defer logger.FinalizeLogger()

	logger.ChangePackageLogLevel("i2c", logger.ErrorLevel)
	logger.ChangePackageLogLevel("bh1750", logger.ErrorLevel)

	// Create new connection to I2C to bh1750
	i2c, err := i2c.NewI2C(0x23, 1)
	if err != nil { lg.Fatal(err) }

	// Free I2C connection on exit
	defer i2c.Close()

	// Setup sensor
	sensor := bh1750.NewBH1750()

	// Reset sensor prior to use
	err = sensor.Reset(i2c)
	if err != nil { lg.Fatal(err) }

	// Read sensor value over time
	for {
		resolution := bh1750.HighResolution
		lux, err := sensor.MeasureAmbientLight(i2c, resolution)
		if err != nil { lg.Fatal(err) }

		println("Illuminance:", lux, "lx")

		time.Sleep(500 * time.Millisecond)
	}
}