fix: handle credential refresh and record not found errors

Signed-off-by: Grant Linville <[email protected]>

pkg/sqlite/sqlite.go

@@ -2,6 +2,7 @@ package sqlite
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log"
 	"os"
@@ -99,6 +100,20 @@ func (s Sqlite) Add(creds *credentials.Credentials) error {
 		return fmt.Errorf("failed to encrypt credential: %w", err)
 	}
 
+	// First, we need to check if a credential with this serverURL already exists.
+	// If it does, delete it first.
+	// This would normally happen during a credential refresh.
+	var existing GptscriptCredential
+	if err := s.db.Where("server_url = ?", cred.ServerURL).First(&existing).Error; err != nil {
+		if !errors.Is(err, gorm.ErrRecordNotFound) {
+			return fmt.Errorf("failed to get existing credential: %w", err)
+		}
+	} else {
+		if err := s.db.Delete(&existing).Error; err != nil {
+			return fmt.Errorf("failed to delete existing credential: %w", err)
+		}
+	}
+
 	if err := s.db.Create(&cred).Error; err != nil {
 		return fmt.Errorf("failed to create credential: %w", err)
 	}
@@ -124,6 +139,9 @@ func (s Sqlite) Get(serverURL string) (string, string, error) {
 		err  error
 	)
 	if err = s.db.Where("server_url = ?", serverURL).First(&cred).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return "", "", nil
+		}
 		return "", "", fmt.Errorf("failed to get credential: %w", err)
 	}
 
@@ -141,6 +159,9 @@ func (s Sqlite) List() (map[string]string, error) {
 		err   error
 	)
 	if err = s.db.Find(&creds).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, nil
+		}
 		return nil, fmt.Errorf("failed to list credentials: %w", err)
 	}