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package webui
import (
"fmt"
"html/template"
"log"
"net/http"
"path"
"regexp"
"git.adyxax.org/adyxax/trains/pkg/model"
)
var validStopId = regexp.MustCompile(`^stop_area:[a-zA-Z]+:\d+$`)
var specificStopTemplate = template.Must(template.New("specificStop").Funcs(funcMap).ParseFS(templatesFS, "html/base.html", "html/specificStop.html"))
// The page template variable
type SpecificStopPage struct {
User *model.User
Stop string
Departures []model.Departure
}
// The stop handler of the webui
func specificStopHandler(e *env, w http.ResponseWriter, r *http.Request) error {
if path.Dir(r.URL.Path) == "/stop" {
user, err := tryAndResumeSession(e, r)
if err != nil {
http.Redirect(w, r, "/login", http.StatusFound)
return nil
}
switch r.Method {
case http.MethodGet:
id := path.Base(r.URL.Path)
if id == "" {
return newStatusError(http.StatusBadRequest, fmt.Errorf("No id in query string")) // TODO should we redirect to root page to chose a stop id?
}
if ok := validStopId.MatchString(id); !ok {
return newStatusError(http.StatusBadRequest, fmt.Errorf("Invalid stop id"))
}
stop, err := e.dbEnv.GetStop(id)
if err != nil {
return newStatusError(http.StatusBadRequest, fmt.Errorf("Stop id not found in database")) // TODO do better
}
if departures, err := e.navitia.GetDepartures(stop.Id); err != nil {
log.Printf("%s; data returned: %+v\n", err, departures)
return newStatusError(http.StatusInternalServerError, fmt.Errorf("Could not get departures"))
} else {
w.Header().Set("Cache-Control", "no-store, no-cache")
p := SpecificStopPage{
User: user,
Stop: stop.Name,
Departures: departures,
}
err = specificStopTemplate.ExecuteTemplate(w, "specificStop.html", p)
if err != nil {
return newStatusError(http.StatusInternalServerError, err)
}
return nil
}
default:
return newStatusError(http.StatusMethodNotAllowed, fmt.Errorf(http.StatusText(http.StatusMethodNotAllowed)))
}
} else {
return newStatusError(http.StatusNotFound, fmt.Errorf("Invalid path in specificStopHandler"))
}
}
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