porting - part 4 done

garth/client/auth.go

@@ -0,0 +1,37 @@
+package client
+
+import (
+	"time"
+)
+
+// OAuth1Token represents OAuth 1.0a credentials
+type OAuth1Token struct {
+	Token       string
+	TokenSecret string
+	CreatedAt   time.Time
+}
+
+// Expired checks if token is expired (OAuth1 tokens typically don't expire but we'll implement for consistency)
+func (t *OAuth1Token) Expired() bool {
+	return false // OAuth1 tokens don't typically expire
+}
+
+// OAuth2Token represents OAuth 2.0 credentials
+type OAuth2Token struct {
+	AccessToken  string
+	RefreshToken string
+	TokenType    string
+	ExpiresIn    int
+	ExpiresAt    time.Time
+}
+
+// Expired checks if token is expired
+func (t *OAuth2Token) Expired() bool {
+	return time.Now().After(t.ExpiresAt)
+}
+
+// RefreshIfNeeded refreshes token if expired (implementation pending)
+func (t *OAuth2Token) RefreshIfNeeded(client *Client) error {
+	// Placeholder for token refresh logic
+	return nil
+}

garth/client/client.go

@@ -52,11 +52,16 @@ func NewClient(domain string) (*Client, error) {
 // Login authenticates to Garmin Connect using SSO
 func (c *Client) Login(email, password string) error {
 	ssoClient := sso.NewClient(c.Domain)
-	oauth2Token, err := ssoClient.Login(email, password)
+	oauth2Token, mfaContext, err := ssoClient.Login(email, password)
 	if err != nil {
 		return fmt.Errorf("SSO login failed: %w", err)
 	}
 
+	// Handle MFA required
+	if mfaContext != nil {
+		return fmt.Errorf("MFA required - not implemented yet")
+	}
+
 	c.OAuth2Token = oauth2Token
 	c.AuthToken = fmt.Sprintf("%s %s", oauth2Token.TokenType, oauth2Token.AccessToken)