#6 add flag - take screenshot onlt on first and last session

        os.makedirs(self.screenshots_folder, exist_ok=True)

        self.screenshot_base_dir = self.screenshots_folder

        # Debug screenshot toggle:

        # - Environment variable SCREENSHOT_ALL=1 / true / y will enable all screenshots (non-interactive)

        # - Otherwise ask interactively (default No)

        env_flag = os.getenv("SCREENSHOT_ALL", "").lower()

        if env_flag in ("1", "true", "y", "yes"):

            self.screenshot_all = True

            print("[INFO] SCREENSHOT_ALL environment variable enabled: saving screenshots for ALL drivers (debug mode).")

        else:

            print("\n6. [선택] 모든 세션에서 스크린샷을 저장하시겠습니까? (y/N): ")

            ans = input().strip().lower()

            self.screenshot_all = ans in ("y", "yes")

            if self.screenshot_all:

                print("[INFO] Debug mode ON: saving screenshots for ALL drivers.")

            else:

                print("[INFO] Default mode: saving screenshots only for first and last drivers.")

    def check_http_status(self, url: str, max_retry: int = 3, ignore_cert: bool = True) -> bool:

        """

        Checks the HTTP status of the given URL.

        self.accept_next_alert = True

    def _take_screenshot(self, driver, action_name):

        """Saves a screenshot with a unique, descriptive filename."""

        """Saves screenshots according to the screenshot_all flag.

        - If self.screenshot_all is True -> save for every driver.

        - Otherwise only save for driver.instance_number == 1 or == self.max_connections.

        """

        try:

            inst = getattr(driver, "instance_number", None)

            if inst is None:

                # No instance number set; skip silently

                return

            # If debug flag set -> save for everyone

            if getattr(self, "screenshot_all", False):

                do_save = True

            else:

                last_inst = getattr(self, "max_connections", None)

                # Default behavior: only save for instance 1 and planned last instance

                do_save = (inst == 1) or (last_inst is not None and inst == last_inst)

            if not do_save:

                return

            # proceed to save screenshot for allowed instances

            time.sleep(0.2)

            session_folder = os.path.join(self.screenshot_base_dir, f"session_{driver.instance_number}")

            session_folder = os.path.join(self.screenshot_base_dir, f"session_{inst}")

            os.makedirs(session_folder, exist_ok=True)

            counter = getattr(driver, 'screenshot_counter', 0) + 1

            setattr(driver, 'screenshot_counter', counter)

            counter = getattr(driver, "screenshot_counter", 0) + 1

            setattr(driver, "screenshot_counter", counter)

            counter_str = str(counter).zfill(4)

            filename = os.path.join(session_folder, f"{counter_str}_{action_name}.png")

            time.sleep(3) # Set common wait time before save screenshot(except custom dashboard)

            # allow page to settle (your previous behavior)

            time.sleep(3)

            driver.save_screenshot(filename)

            # optionally show debug

            # print(f"Screenshot saved: {filename}")

        except (FileNotFoundError, PermissionError):

            print(f"Error saving screenshot for session {driver.instance_number}")

        except (FileNotFoundError, PermissionError) as e:

            print(f"Error saving screenshot for session {getattr(driver, 'instance_number', 'unknown')}: {e}")

        except Exception as e:

            print(f"Unexpected error in _take_screenshot for session {getattr(driver, 'instance_number', 'unknown')}: {e}")

    def _interact_with_time_filters(self, driver):

        """