// GetWeather get weather
func GetWeather() []map[string]interface{} {
weatherChans := make(chan map[string]interface{})
cities := models.Cities()
// MAIN loop through cities
for _, city := range cities {
go func(ID string) {
sleep := time.Duration(rand.Intn(1e3)) * time.Millisecond
utils.Info(fmt.Sprintf("sleeping for... %v", sleep))
time.Sleep(sleep)
cityID := fmt.Sprintf("%v", ID)
weatherChans <- GetCityWeather(cityID)
}(city)
}
defer close(weatherChans)
results := make([]map[string]interface{}, len(cities))
for i := 0; i < len(cities); i++ {
x := <-weatherChans
results[i] = x
}
return results
}
// WeatherCrawlerStart weather crawler start getters
// main weather crawler
func WeatherCrawlerStart(delaySec int, counter int) {
utils.Info(fmt.Sprintf("initializing weather crawler..."))
Initialize(&counter)
for t := range time.Tick(time.Duration(delaySec) * time.Second) {
fmt.Println(t)
Initialize(&counter)
}
}
// PrintWeatherResult print weather result
func PrintWeatherResult(weatherResponse models.WeatherResponse) {
utils.Info(fmt.Sprintf("%v: %v", weatherResponse.Name, weatherResponse.Main.Temp))
}
func reportGoRoutines(reportDelaySec int) {
for t := range time.Tick(time.Duration(reportDelaySec) * time.Second) {
_ = t
utils.Info(fmt.Sprintf("currently have goroutines -->> %v", runtime.NumGoroutine()))
}
}