added discord token check to auth

internal/store/tokencheck.go

@@ -0,0 +1,39 @@
+package store
+
+import (
+	"errors"
+	"time"
+
+	"git.haelnorr.com/h/oslstats/internal/db"
+)
+
+type TokenCheck struct {
+	Token     *db.DiscordToken
+	ExpiresAt time.Time
+}
+
+func (s *Store) NewTokenCheck(user *db.User, token *db.DiscordToken) error {
+	if user == nil {
+		return errors.New("user cannot be nil")
+	}
+	if token == nil {
+		return errors.New("token cannot be nil")
+	}
+	s.tokenchecks.Store(user.ID, &TokenCheck{
+		Token:     token,
+		ExpiresAt: time.Now().Add(5 * time.Minute),
+	})
+	return nil
+}
+
+func (s *Store) CheckToken(user *db.User) *db.DiscordToken {
+	res, ok := s.tokenchecks.Load(user.ID)
+	if !ok {
+		return nil
+	}
+	check := (res).(*TokenCheck)
+	check.ExpiresAt = time.Now().Add(5 * time.Minute)
+	s.tokenchecks.Delete(user.ID)
+	s.tokenchecks.Store(user.ID, check)
+	return check.Token
+}