func monitorGeo() {
log.Printf("Fetching location...")
geo, err := geoip.LookupIP("")
if err != nil {
log.Fatal(err)
}
log.Printf(" - City: %s, Lat: %f, Lon: %f", geo.City, geo.Lat, geo.Lon)
log.Printf("Monitoring daylight settings...")
var lastState *bool
for {
rise := astrotime.NextSunrise(time.Now(), geo.Lat, -geo.Lon)
set := astrotime.NextSunset(time.Now(), geo.Lat, -geo.Lon)
state := rise.Before(set)
if lastState != nil && state == *lastState {
time.Sleep(1 * time.Minute)
continue
}
lastState = &state
if state {
log.Print("Good night!")
sct.SetColorTemp(*nightTemp)
} else {
log.Print("Good morning!")
sct.SetColorTemp(*dayTemp)
}
time.Sleep(1 * time.Minute)
}
}
func sendEverySunset(c chan<- sunEvent) {
for {
now := time.Now()
sunset := astrotime.NextSunset(now, sflat, sflon).Add(-time.Duration(15) * time.Minute)
log.Printf("next sunset at %s", sunset)
time.Sleep(sunset.Sub(now))
c <- sunsetEvent
}
}
func main() {
// t := time.Date(2015, time.December, 31, 23, 0, 0, 0, time.Local)
t := time.Now()
fmt.Printf("Go launched at %s\n", t.Local())
nextSunrise := astrotime.NextSunrise(t, latitude, longitude)
fmt.Printf("next sunrise at %s\n", nextSunrise)
nextSunset := astrotime.NextSunset(t, latitude, longitude)
fmt.Printf("next sunset at %s\n", nextSunset)
if nextSunset.Before(nextSunrise) {
fmt.Printf("It is daytime\n")
} else {
fmt.Printf("It is nighttime\n")
}
}
func SunHandlerV0(w http.ResponseWriter, r *http.Request) {
var latitude, longitude *float64
var lat, lon float64
var err error
if r.Method != "GET" {
http.Error(w, "Not Found", http.StatusNotFound)
return
}
components := strings.Split(r.URL.Path[1:], "/")
if len(components) != 4 {
http.Error(w, "Bad Request", http.StatusBadRequest)
return
}
for _, comp := range components {
switch {
case len(comp) > 3 && comp[:3] == "lat":
lat, err = strconv.ParseFloat(comp[3:], 64)
if err == nil {
latitude = &lat
} else {
http.Error(w, "Bad Request", http.StatusBadRequest)
return
}
case len(comp) > 3 && comp[:3] == "lon":
lon, err = strconv.ParseFloat(comp[3:], 64)
if err == nil {
longitude = &lon
} else {
http.Error(w, "Bad Request", http.StatusBadRequest)
return
}
}
}
if latitude == nil || longitude == nil {
http.Error(w, "Bad Request", http.StatusBadRequest)
return
}
if components[1] == "sunrise" {
fmt.Fprint(w, astrotime.NextSunrise(time.Now(), *latitude, *longitude))
}
if components[1] == "sunset" {
fmt.Fprint(w, astrotime.NextSunset(time.Now(), *latitude, *longitude))
}
}