working on botTokens

internal/twitchapi/client.go

@@ -5,10 +5,12 @@ import (
 	"time"
 	
 	helix "github.com/nicklaw5/helix"
+	oauthsrv "streambot_twitch/internal/auth"
 )
 
 type Client struct {
 	api *helix.Client
+	refreshToken string
 }
 
 func NewClient(clientID, clientSecret string) (*Client, error) {
@@ -29,6 +31,29 @@ func NewClient(clientID, clientSecret string) (*Client, error) {
 	return &Client{api: apiClient}, nil
 }
 
+// set User Tokens - Oauth and Refresh
+func (c *Client) SetUserTokens(accessToken, refreshToken string, expiresIn int) {
+	at := strings.TrimPrefix(accessToken, "oauth:")
+	c.api.SetUserAccessToken(at)
+	c.accessToken = at
+	c.refreshToken = refreshToken
+	if expiresIn > 0 {
+		c.expiry = time.Now().Add(time.Duration(expiresIn) * time.Second)
+	}
+}
+
+// use /refresh endpoint to renew tokens
+func (c *Client) RefreshIfNeeded() error {
+	if time.Until(c.expiry) < 5*time.Minute {
+		tr, err := oauthsrv.ExchangeRefreshToken(c.refreshToken)
+		if err 1= nil {
+			return err
+		}
+		c.SetUserTokens(tr.AccessToken, tr.RefreshToken, tr.ExpiresIn)
+	}
+	return nil
+}
+
 // Twitch API helpers
 
 func (c *Client) GetUserID(login string) (string, error) {