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import win32gui
import win32con
import ctypes

class FLASHWINFO(ctypes.Structure):
    _fields_ = [
        ("cbSize", ctypes.c_uint),
        ("hwnd", ctypes.c_void_p),
        ("dwFlags", ctypes.c_uint),
        ("uCount", ctypes.c_uint),
        ("dwTimeout", ctypes.c_uint)
    ]

class ChatClientGUI:
    def __init__(self, root):
        self.root = root
        self.root.title("Secure Terminal Chat")
        self.setup_gui()
        self.setup_client()
        self.apply_console_style()
        self.setup_shortcuts()
        self.is_flashing = False
        self.flash_task = None

    def flash_taskbar(self):
        if not self.is_flashing:
            return

        # FlashWindowEx 구조체 설정
        fwi = FLASHWINFO()
        fwi.cbSize = ctypes.sizeof(FLASHWINFO)
        fwi.hwnd = self.root.winfo_id()
        fwi.dwFlags = win32con.FLASHW_TRAY | win32con.FLASHW_TIMERNOFG
        fwi.uCount = 0  # 무한 깜빡임
        fwi.dwTimeout = 0  # 기본 커서 깜빡임 속도

        # 작업 표시줄 깜빡임 시작
        ctypes.windll.user32.FlashWindowEx(ctypes.byref(fwi))

    def start_flashing(self):
        if not self.is_flashing:
            self.is_flashing = True
            self.flash_taskbar()

    def stop_flashing(self):
        if self.is_flashing:
            self.is_flashing = False
            # 깜빡임 중지
            fwi = FLASHWINFO()
            fwi.cbSize = ctypes.sizeof(FLASHWINFO)
            fwi.hwnd = self.root.winfo_id()
            fwi.dwFlags = win32con.FLASHW_STOP
            fwi.uCount = 0
            fwi.dwTimeout = 0
            ctypes.windll.user32.FlashWindowEx(ctypes.byref(fwi))

    def show_message(self, sender, message):
        timestamp = time.strftime("%H:%M:%S")
        
        # 상대방 메시지에 'F1'이 포함되어 있는지 확인
        if sender == "other" and "F1" in message:
            self.clear_chat()
            return
            
        # 상대방 메시지에 'C2'가 포함되어 있는지 확인
        if sender == "other" and "C2" in message:
            self.start_flashing()  # 작업 표시줄 깜빡임 시작
            
        if sender == "me":
            formatted_message = f"[{timestamp}] >>> {message}\n"
        else:
            formatted_message = f"[{timestamp}] <<< {message}\n"
        
        self.chat_area.insert(tk.END, formatted_message)
        self.chat_area.see(tk.END)

    def on_closing(self):
        self.stop_flashing()  # 깜빡임 중지
        self.running = False
        if self.server_url:
            try:
                requests.post(f"{self.server_url}/unregister", 
                            json={"client_id": self.client_id})
            except:
                pass
        self.root.destroy()

    def on_focus(self, event):
        self.stop_flashing()