func createFinalResult(ctx context.Context, w http.ResponseWriter, resultKey *datastore.Key, result model.Result) (int, error) {
go computeFinalScore(ctx, result)
var challenge model.Challenge
if err := datastore.Get(ctx, result.Challenge, &challenge); err != nil {
return http.StatusInternalServerError, nil
}
var taskKey *datastore.Key
for _, taskKey = range challenge.Tasks {
switch taskKey.Kind() {
case model.CodeTaskKind:
var submissions model.CodeSubmissions
keys, err := doQuery(ctx, model.NewQueryForCodeSubmission(), resultKey, taskKey, submissions)
if err != nil {
return http.StatusInternalServerError, nil
}
if len(keys) == 0 {
// Most likely the authenticated user called this endpoint
// before finishing the challenge
return http.StatusUnauthorized, nil
}
result.FinalSubmissions = append(result.FinalSubmissions, keys[0])
//TODO(pbochis, vbalan, flowlo): Add more cases when more task kinds are added.
default:
return http.StatusBadRequest, errors.New("Unknown submission kind.")
}
}
key, err := result.Save(ctx, resultKey)
if err != nil {
return http.StatusInternalServerError, err
}
json.NewEncoder(w).Encode(result.Key(key))
return http.StatusOK, nil
}
// FinalSubmission makes the last submission final.
func FinalSubmission(ctx context.Context, w http.ResponseWriter, r *http.Request) (status int, err error) {
p, ok := passenger.FromContext(ctx)
if !ok {
return http.StatusUnauthorized, nil
}
if r.Method != "POST" {
return http.StatusMethodNotAllowed, nil
}
var resultKey *datastore.Key
if resultKey, err = datastore.DecodeKey(mux.Vars(r)["resultKey"]); err != nil {
return http.StatusInternalServerError, err
}
if !util.HasParent(p.UserKey, resultKey) {
return http.StatusBadRequest, errors.New("cannot submit answer for other users")
}
var index int
if index, err = strconv.Atoi(mux.Vars(r)["index"]); err != nil {
return http.StatusInternalServerError, err
}
var submissionKey *datastore.Key
if submissionKey, err = datastore.DecodeKey(mux.Vars(r)["submissionKey"]); err != nil {
return http.StatusInternalServerError, err
}
var result model.Result
if err = datastore.Get(ctx, resultKey, &result); err != nil {
return http.StatusInternalServerError, err
}
result.FinalSubmissions[index] = submissionKey
if _, err = result.Save(ctx, resultKey); err != nil {
return http.StatusInternalServerError, err
}
w.Write([]byte("OK"))
return
}
// TaskByKey loads a task by key.
func TaskByKey(ctx context.Context, w http.ResponseWriter, r *http.Request) (status int, err error) {
p, ok := passenger.FromContext(ctx)
if !ok {
return http.StatusUnauthorized, nil
}
if r.Method != "GET" {
return http.StatusMethodNotAllowed, nil
}
taskKey, err := datastore.DecodeKey(mux.Vars(r)["key"])
if err != nil {
return http.StatusInternalServerError, err
}
// User is a coder
if p.UserKey.Parent() == nil {
rk, err := datastore.DecodeKey(r.URL.Query()["result"][0])
if err != nil {
return http.StatusInternalServerError, err
}
if !util.HasParent(p.UserKey, rk) {
return http.StatusUnauthorized, nil
}
var result model.Result
if err = datastore.Get(ctx, rk, &result); err != nil {
return http.StatusInternalServerError, err
}
var challenge model.Challenge
if err = datastore.Get(ctx, result.Challenge, &challenge); err != nil {
return http.StatusInternalServerError, err
}
emptyTime := time.Time{}
updateResult := false
for i, val := range challenge.Tasks {
if taskKey.Equal(val) && result.StartTimes[i] == emptyTime {
result.StartTimes[i] = time.Now()
updateResult = true
break
}
}
if updateResult {
if _, err = result.Save(ctx, rk); err != nil {
return http.StatusInternalServerError, err
}
}
}
switch taskKey.Kind() {
case model.CodeTaskKind:
var task model.CodeTask
if err = datastore.Get(ctx, taskKey, &task); err != nil {
return http.StatusInternalServerError, err
}
json.NewEncoder(w).Encode(task.Key(taskKey))
return http.StatusOK, nil
default:
return http.StatusInternalServerError, errors.New("Not implemented")
}
}