From 74583992d2939791ef74155c99eb194269ac3721 Mon Sep 17 00:00:00 2001
From: "Anderson A. Giacomolli" <agiacomolli@gmail.com>
Date: Fri, 6 Nov 2026 14:38:59 -0300
Subject: [PATCH] Read the time directly in the model client

The model client and the ChatGPT authorizer read the time with time.Now
instead of a clock field. No caller set the field, so it was an
injection with no user. A test that needs fake time can run in a
testing/synctest bubble, where the time package uses a fake clock.

Issue: b14d537
---
 auth.go      | 4 +---
 responses.go | 6 ++----
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/auth.go b/auth.go
index 1908b89..736624e 100644
--- a/auth.go
+++ b/auth.go
@@ -63,7 +63,6 @@ type chatgptAuth struct {
 	path   string
 	issuer string
 	http   *http.Client
-	clock  func() time.Time
 }
 
 // tokenFile is the content of the token file.
@@ -115,7 +114,6 @@ func newChatGPTAuth(path, issuer string) *chatgptAuth {
 		path:   path,
 		issuer: issuer,
 		http:   &http.Client{},
-		clock:  time.Now,
 	}
 }
 
@@ -308,7 +306,7 @@ func (a *chatgptAuth) Authorize(ctx context.Context, header http.Header) error {
 	}
 
 	expiry, found := tokenExpiry(tokens.AccessToken)
-	if !found || !a.clock().Before(expiry.Add(-refreshMargin)) {
+	if !found || !time.Now().Before(expiry.Add(-refreshMargin)) {
 		tokens, err = a.refresh(ctx, tokens)
 		if err != nil {
 			return err
diff --git a/responses.go b/responses.go
index 9d6b75f..ebffaa3 100644
--- a/responses.go
+++ b/responses.go
@@ -57,7 +57,6 @@ type Client struct {
 	cacheKey string
 	usage    *usageLog
 	http     *http.Client
-	clock    func() time.Time
 }
 
 // Request is one model call. Input holds the input items in order, such as
@@ -179,8 +178,7 @@ func newClient(url string, auth authorizer, cacheKey, usagePath string) *Client
 		usage: &usageLog{
 			path: usagePath,
 		},
-		http:  &http.Client{},
-		clock: time.Now,
+		http: &http.Client{},
 	}
 }
 
@@ -216,7 +214,7 @@ func (c *Client) Create(ctx context.Context, request Request) (Response, error)
 	}
 
 	record := usageRecord{
-		Date:  c.clock().Format(time.RFC3339Nano),
+		Date:  time.Now().Format(time.RFC3339Nano),
 		Model: request.Model,
 	}
 
-- 
2.53.0