feat(auth): enhance Gemini web auth with macOS support and input fallback

- Added detection for macOS to adjust behavior for cookie input.
- Improved fallback prompts for missing cookies and email inputs.

internal/cmd/gemini-web_auth.go

@@ -10,6 +10,7 @@ import (
 	"fmt"
 	"net/http"
 	"os"
+	"runtime"
 	"strings"
 	"time"
 
@@ -27,8 +28,11 @@ import (
 //  3. Call https://accounts.google.com/ListAccounts with the cookie to obtain email.
 //  4. Save auth file with the same structure, and set Label to the email.
 func DoGeminiWebAuth(cfg *config.Config) {
-	reader := bufio.NewReader(os.Stdin)
+	var secure1psid, secure1psidts, email string
 
+	reader := bufio.NewReader(os.Stdin)
+	isMacOS := strings.HasPrefix(runtime.GOOS, "darwin")
+	if !isMacOS {
 		fmt.Print("Paste your full Google Cookie and press Enter: ")
 		rawCookie, _ := reader.ReadString('\n')
 		rawCookie = strings.TrimSpace(rawCookie)
@@ -53,24 +57,8 @@ func DoGeminiWebAuth(cfg *config.Config) {
 				}
 			}
 		}
-
-	secure1psid := strings.TrimSpace(cookieMap["__Secure-1PSID"])
-	secure1psidts := strings.TrimSpace(cookieMap["__Secure-1PSIDTS"])
-	// Fallback: prompt user to input missing values
-	if secure1psid == "" {
-		fmt.Print("Cookie missing __Secure-1PSID. Enter __Secure-1PSID: ")
-		v, _ := reader.ReadString('\n')
-		secure1psid = strings.TrimSpace(v)
-	}
-	if secure1psidts == "" {
-		fmt.Print("Cookie missing __Secure-1PSIDTS. Enter __Secure-1PSIDTS: ")
-		v, _ := reader.ReadString('\n')
-		secure1psidts = strings.TrimSpace(v)
-	}
-	if secure1psid == "" || secure1psidts == "" {
-		log.Fatal("__Secure-1PSID and __Secure-1PSIDTS cannot be empty")
-		return
-	}
+		secure1psid = strings.TrimSpace(cookieMap["__Secure-1PSID"])
+		secure1psidts = strings.TrimSpace(cookieMap["__Secure-1PSIDTS"])
 
 		// Build HTTP client with proxy settings respected.
 		httpClient := &http.Client{Timeout: 15 * time.Second}
@@ -89,23 +77,25 @@ func DoGeminiWebAuth(cfg *config.Config) {
 		req.Header.Set("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8")
 
 		resp, err := httpClient.Do(req)
-	email := ""
+
 		if err != nil {
 			fmt.Printf("Request to ListAccounts failed: %v\n", err)
 		} else {
-		defer resp.Body.Close()
+			defer func() {
+				_ = resp.Body.Close()
+			}()
 			if resp.StatusCode != http.StatusOK {
 				fmt.Printf("ListAccounts returned status code: %d\n", resp.StatusCode)
 			} else {
 				var payload []any
-			if err := json.NewDecoder(resp.Body).Decode(&payload); err != nil {
+				if err = json.NewDecoder(resp.Body).Decode(&payload); err != nil {
 					fmt.Printf("Failed to parse ListAccounts response: %v\n", err)
 				} else {
 					// Expected structure like: ["gaia.l.a.r", [["gaia.l.a",1,"Name","email@example.com", ... ]]]
 					if len(payload) >= 2 {
 						if accounts, ok := payload[1].([]any); ok && len(accounts) >= 1 {
-						if first, ok := accounts[0].([]any); ok && len(first) >= 4 {
-							if em, ok := first[3].(string); ok {
+							if first, ok1 := accounts[0].([]any); ok1 && len(first) >= 4 {
+								if em, ok2 := first[3].(string); ok2 {
 									email = strings.TrimSpace(em)
 								}
 							}
@@ -117,6 +107,34 @@ func DoGeminiWebAuth(cfg *config.Config) {
 				}
 			}
 		}
+	}
+
+	// Fallback: prompt user to input missing values
+	if secure1psid == "" {
+		if !isMacOS {
+			fmt.Print("Cookie missing __Secure-1PSID. ")
+		}
+		fmt.Print("Enter __Secure-1PSID: ")
+		v, _ := reader.ReadString('\n')
+		secure1psid = strings.TrimSpace(v)
+	}
+	if secure1psidts == "" {
+		if !isMacOS {
+			fmt.Print("Cookie missing __Secure-1PSID. ")
+		}
+		fmt.Print("Enter __Secure-1PSIDTS: ")
+		v, _ := reader.ReadString('\n')
+		secure1psidts = strings.TrimSpace(v)
+	}
+	if secure1psid == "" || secure1psidts == "" {
+		log.Fatal("__Secure-1PSID and __Secure-1PSIDTS cannot be empty")
+		return
+	}
+	if isMacOS {
+		fmt.Print("Enter your account email: ")
+		v, _ := reader.ReadString('\n')
+		email = strings.TrimSpace(v)
+	}
 
 	// Generate a filename based on the SHA256 hash of the PSID
 	hasher := sha256.New()