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package main
// TODO: allow free-text lookups of place names, rather than ids
// TODO: decode weather type number
// TODO: split out met office specific stuff to separate module
// TODO: add other weather providers
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"log"
"net/http"
)
const defid = "310118"
var wkey = map[string]string{
"f": "Feels Like Temperature",
"h": "Humidity",
"p": "Pressure",
"t": "Temperature",
"v": "Visibility",
"wg": "Wind Gust",
"ws": "Wind Speed",
"pp": "Precipitaton Probability",
"uv": "Max UV Index",
"wd": "Wind Direction",
"wt": "Weather Type",
"AQIndex": "Air Quality",
}
type Response struct {
BestFcst struct {
Forecast struct {
Location struct {
Days []Day `json:"Day"`
}
}
}
}
type Day struct {
Date string `json:"@date"`
DayValues struct {
WeatherParameters WeatherParams
}
NightValues struct {
WeatherParameters WeatherParams
}
TimeSteps struct {
TimeStep []struct {
Time string `json:"@time"`
WeatherParameters WeatherParams
}
}
}
type WeatherParams struct {
AQIndex float64
F float64
H float64
P float64
PP float64
UV float64
T float64
V float64
WD string
WG float64
WS float64
WT float64
}
func main() {
var r Response
var id string
flag.Parse()
if flag.NArg() > 0 {
id = flag.Arg(0)
} else {
id = defid
}
client := &http.Client{Transport: &http.Transport{}}
resp, err := client.Get("https://www.metoffice.gov.uk/public/data/PWSCache/BestForecast/Forecast/" + id + ".json?concise=true")
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
b, err := ioutil.ReadAll(resp.Body)
err = json.Unmarshal(b, &r)
if err != nil {
log.Fatal(err)
}
for _, d := range r.BestFcst.Forecast.Location.Days {
fmt.Printf("-----------------------------\n")
fmt.Printf("Date: %v\n", d.Date)
fmt.Printf("\nDay weather:\n")
prettyWeather(d.DayValues.WeatherParameters)
fmt.Printf("\nNight weather:\n")
prettyWeather(d.NightValues.WeatherParameters)
fmt.Printf("\nTime steps:\n")
for _, t := range d.TimeSteps.TimeStep {
fmt.Printf("\nTime: %s\n", t.Time)
prettyWeather(t.WeatherParameters)
}
}
}
func prettyWeather(w WeatherParams) {
// TODO: Print weather nicely
fmt.Printf("%+v\n", w)
}
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