Move weather code into own package

1 files changed, 57 insertions, 0 deletions

diff --git a/weather/weather.go b/weather/weather.go
new file mode 100644
index 0000000..d60e22c
--- /dev/null
+++ b/weather/weather.go
@@ -0,0 +1,57 @@
+// Package weather provides functions to retrieve eweather forecast data from yr.no
+package weather
+
+import (
+	"encoding/xml"
+	"net/http"
+	"time"
+)
+
+func toTime(s string) time.Time {
+	t, _ := time.Parse("2006-01-02T15:04:05", s)
+	return t
+}
+
+type Temperature struct {
+	Value int    `xml:"value,attr"`
+	Unit  string `xml:"unit,attr"`
+}
+
+type Weather struct {
+	Temp   Temperature `xml:"temperature"`
+	Symbol struct {
+		Var string `xml:"var,attr"`
+	} `xml:"symbol"`
+	From string `xml:"from,attr"`
+	URL  string
+	Icon string
+}
+
+func (w *Weather) prepIcon() {
+	w.Icon = "http://symbol.yr.no/grafikk/sym/b100/" + w.Symbol.Var + ".png"
+}
+
+type weatherdata struct {
+	Forecast []*Weather `xml:"forecast>tabular>time"`
+}
+
+func CurrentWeather(place string) (Weather, error) {
+	url := "http://www.yr.no/place/" + place + "/forecast_hour_by_hour.xml"
+	resp, err := http.Get(url)
+	if err != nil {
+		return Weather{}, err
+	}
+	defer resp.Body.Close()
+
+	var wd weatherdata
+	dec := xml.NewDecoder(resp.Body)
+	if err := dec.Decode(&wd); err != nil {
+		return Weather{}, err
+	}
+
+	w := wd.Forecast[0]
+	w.URL = "http://www.yr.no/place/" + place
+	w.prepIcon()
+
+	return *w, nil
+}