bb/lib/weather/weather.go

85 lines
1.7 KiB
Go

package weather
import (
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"git.kill0.net/chill9/beepboop/lib"
log "github.com/sirupsen/logrus"
)
type (
WeatherClient struct {
token string
}
)
const (
OpenWeatherMapURI = "https://api.openweathermap.org"
)
var (
EndpointWeather = lib.BuildURI(OpenWeatherMapURI, "/data/2.5/weather")
ErrUnmarshal = errors.New("unmarshaling JSON failed")
ErrReadingResponse = errors.New("reading HTTP response failed")
ErrRequestFailed = errors.New("HTTP request failed")
ErrCreateRequestFailed = errors.New("failed to create new HTTP request")
)
func NewClient(token string) *WeatherClient {
return &WeatherClient{token}
}
func (c *WeatherClient) Get(loc string) (w Weather, err error) {
var werr WeatherError
req, err := http.NewRequest("GET", EndpointWeather, nil)
if err != nil {
err = fmt.Errorf("%s: %s", ErrCreateRequestFailed, err)
return
}
q := req.URL.Query()
q.Add("q", loc)
q.Add("appid", c.token)
req.URL.RawQuery = q.Encode()
resp, err := http.DefaultClient.Do(req)
if err != nil {
err = fmt.Errorf("%s: %s", ErrRequestFailed, err)
return
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
err = fmt.Errorf("%s: %s", ErrReadingResponse, err)
return
}
if resp.StatusCode != http.StatusOK {
err = json.Unmarshal(body, &werr)
if err != nil {
log.Debugf("%s", body)
err = fmt.Errorf("%s: %s", ErrUnmarshal, err)
return
}
err = fmt.Errorf("error: (%s) %s", resp.Status, werr.Message)
return
}
err = json.Unmarshal(body, &w)
if err != nil {
log.Debugf("%s", body)
err = fmt.Errorf("%s: %s", ErrUnmarshal, err)
return
}
return
}