sco/bot/metar.go

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package bot
//import "github.com/kr/pretty"
import (
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"encoding/json"
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"fmt"
"io/ioutil"
"net/http"
"os"
"regexp"
"time"
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"github.com/rs/zerolog/log"
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)
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type MetarResponse struct {
Meta struct {
Timestamp time.Time `json:"timestamp"`
StationsUpdated string `json:"stations_updated"`
} `json:"meta"`
Altimeter struct {
Repr string `json:"repr"`
Value float64 `json:"value"`
Spoken string `json:"spoken"`
} `json:"altimeter"`
Clouds []interface{} `json:"clouds"`
FlightRules string `json:"flight_rules"`
Other []interface{} `json:"other"`
Sanitized string `json:"sanitized"`
Visibility struct {
Repr string `json:"repr"`
Value int `json:"value"`
Spoken string `json:"spoken"`
} `json:"visibility"`
WindDirection struct {
Repr string `json:"repr"`
Value int `json:"value"`
Spoken string `json:"spoken"`
} `json:"wind_direction"`
WindGust struct {
Repr string `json:"repr"`
Value int `json:"value"`
Spoken string `json:"spoken"`
} `json:"wind_gust"`
WindSpeed struct {
Repr string `json:"repr"`
Value int `json:"value"`
Spoken string `json:"spoken"`
} `json:"wind_speed"`
WxCodes []interface{} `json:"wx_codes"`
Raw string `json:"raw"`
Station string `json:"station"`
Time struct {
Repr string `json:"repr"`
Dt time.Time `json:"dt"`
} `json:"time"`
Remarks string `json:"remarks"`
Dewpoint struct {
Repr string `json:"repr"`
Value int `json:"value"`
Spoken string `json:"spoken"`
} `json:"dewpoint"`
RemarksInfo struct {
DewpointDecimal struct {
Repr string `json:"repr"`
Value float64 `json:"value"`
Spoken string `json:"spoken"`
} `json:"dewpoint_decimal"`
TemperatureDecimal struct {
Repr string `json:"repr"`
Value float64 `json:"value"`
Spoken string `json:"spoken"`
} `json:"temperature_decimal"`
} `json:"remarks_info"`
RunwayVisibility []interface{} `json:"runway_visibility"`
Temperature struct {
Repr string `json:"repr"`
Value int `json:"value"`
Spoken string `json:"spoken"`
} `json:"temperature"`
WindVariableDirection []interface{} `json:"wind_variable_direction"`
Units struct {
Altimeter string `json:"altimeter"`
Altitude string `json:"altitude"`
Temperature string `json:"temperature"`
Visibility string `json:"visibility"`
WindSpeed string `json:"wind_speed"`
} `json:"units"`
}
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func (b *Bot) HandleWeatherRequest(channelid string, postid string, message string) {
// we are using a very bare image with no CA cert bundle
// actually if you docker bind mount the ca cert bundle in the right
// place, golang will find it and use it.
//http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
log.Info().Msgf("weather request received: `%s`", message)
r := regexp.MustCompile(`metar\s+([A-Za-z]{4})`)
matches := r.FindStringSubmatch(message)
if len(matches) < 2 {
b.SendMsgToChannel("error, sorry", postid, channelid)
}
loc := matches[1]
token := os.Getenv("METAR_API_TOKEN")
url := fmt.Sprintf("https://avwx.rest/api/metar/%s?options=&airport=true&reporting=true&format=json&onfail=cache", loc)
log.Info().Msgf("calculated url: `%s`", url)
client := http.Client{
Timeout: 5 * time.Second,
}
req, err := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", `Token `+token)
resp, err := client.Do(req)
if err != nil {
b.SendMsgToChannel(fmt.Sprintf("weather fetch error: %s", err), postid, channelid)
return
}
if resp.StatusCode != http.StatusOK {
b.SendMsgToChannel(fmt.Sprintf("weather fetch error: http status %d", resp.StatusCode), postid, channelid)
return
}
data, _ := ioutil.ReadAll(resp.Body)
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var parsedMetarResponse MetarResponse
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log.Info().Msgf("weather %s: %s", loc, data)
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err = nil
err = json.Unmarshal([]byte(data), &parsedMetarResponse)
if err != nil {
b.SendMsgToChannel("error deserializing metar data", postid, channelid)
return
}
b.SendMsgToChannel(fmt.Sprintf("weather for `%s`: \n```\n%+v\n```\n", loc, parsedMetarResponse), postid, channelid)
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}