// CreateChallenge will put a new entity of kind Challenge to Datastore.
func CreateChallenge(ctx context.Context, w http.ResponseWriter, r *http.Request) (status int, err error) {
if r.Method != "POST" {
return http.StatusMethodNotAllowed, nil
}
p, ok := passenger.FromContext(ctx)
if !ok {
return http.StatusUnauthorized, nil
}
if p.UserKey.Parent() == nil {
return http.StatusUnauthorized, nil
}
var body = struct {
model.Assignment
Tasks []string
}{}
if err = json.NewDecoder(r.Body).Decode(&body); err != nil {
return http.StatusBadRequest, err
}
keys := make([]*datastore.Key, len(body.Tasks))
for i := range body.Tasks {
key, err := datastore.DecodeKey(body.Tasks[i])
if err != nil {
return http.StatusInternalServerError, err
}
keys[i] = key
}
challenge := model.Challenge{
Assignment: body.Assignment,
Tasks: keys,
}
key, err := challenge.SaveWithParent(ctx, p.UserKey.Parent())
if err != nil {
return http.StatusInternalServerError, err
}
json.NewEncoder(w).Encode(challenge.Key(key))
return http.StatusOK, nil
}
