i am not able to stay on current page when i refresh or come to that page on browser

[pamraman2009]

i am not able to stay on current page when i refresh or come to that page on browser can anyone help so please help

login_page.py

import flet as ft
from flet import *
import requests
import asyncio
from multi_tabs import buildTabs
from admin_multi_tab import admin_buildTabs
from super_admin_multi_tab import super_admin_buildTabs
from icecream import ic
from api_url import login_url

class MyLogin(Column):
def init(self, page):
super().init()
self.username = ft.TextField(value='demo', width=280, height=40, hint_text='Login ID',
border='underline', color='black', prefix_icon=ft.icons.EMAIL)
self.password = ft.TextField(value='hello123', width=280, height=40, hint_text='Password',
border='underline', color='black', prefix_icon=ft.icons.LOCK, password=True)
self.page = page
self.page.on_keyboard_event = self.on_key_down

def build(self):
    return ft.Container(
        ft.Row([ft.Container(ft.Column(controls=[
            ft.Text('Welcome', width=360, size=30,
                    weight='w900', text_align='center'),
            ft.Container(self.username, padding=ft.padding.only(20, 10)),
            ft.Container(self.password, padding=ft.padding.only(20, 10)),
            ft.Container(ft.ElevatedButton(content=ft.Text('Login', color='white', weight='w500'),
                         width=280, bgcolor='black', on_click=self.loginbtn), padding=ft.padding.only(25, 10)),
            ft.Container(ft.Row([ft.Text(
                'Real money is not involved in this platform')], spacing=8), padding=ft.padding.only(40))
        ], alignment=ft.MainAxisAlignment.SPACE_EVENLY), gradient=ft.LinearGradient(['red', 'orange']), width=380, height=460, border_radius=20)], alignment=ft.MainAxisAlignment.SPACE_EVENLY),
        padding=10
    )

def loginbtn(self, e=None):
    if not self.page:
        ic("Page is not initialized.")
        return

    payload = {'username': self.username.value,
               'password': self.password.value}
    try:
        response = requests.post(login_url, data=payload)
        repo = response.json()
        if repo.get('status_code') == 222 and repo.get('login') == True:
            datalogin = {
                "value": True,
                "username": self.username.value,
                'token': repo['access_token'],
                'user_role': repo['user_role']
            }
            # Store in client_storage with a unique prefix
            self.page.client_storage.clear()
            ic('----253--', self.page.client_storage)
            self.page.client_storage.set("session_data", datalogin)
            self.page.data = self.page.data or {}
            self.page.data['datalogin'] = datalogin
            ic("Login successful----255---:", datalogin)
            self.page.go(f"/{repo['user_role']}")
        else:
            self.show_snackbar("Invalid username or password")
    except Exception as e:
        ic(f"Login error: {e}")
        self.show_snackbar("Login failed. Please try again.")
    self.page.update()

def show_snackbar(self, message):
    snack_bar = SnackBar(content=Text(message, size=20), bgcolor="red")
    self.page.overlay.append(snack_bar)
    snack_bar.open = True

def on_key_down(self, event):
    if event.key == "Enter":
        self.loginbtn()

async def get_session_data(page: Page):
"""Retrieve session data from client_storage."""
try:
session_data = page.client_storage.get("session_data")
if session_data and session_data.get("value") == True:
ic("Session retrieved from client_storage---279---:", session_data)
return session_data
except Exception as e:
ic(f"Failed to retrieve session----283---: {e}")
ic("No valid session found-----284---.")
return None

def main(page: Page):
mylogin = MyLogin(page)
usr_page = buildTabs(page)
admin_page = admin_buildTabs(page)
super_admin_page = super_admin_buildTabs(page)

# Initialize app and check session
async def initialize_app():
    session_data = await get_session_data(page)
    if session_data and page.route == "/login":
        page.go(f"/{session_data['user_role']}")
    else:
        page.go("/login")  # Default to login if no session or invalid

page.run_task(initialize_app)

def myroute(route):
    page.views.clear()
    page.overlay.clear()
    page.clean()

    session_data = asyncio.run(get_session_data(page))
    user_role = session_data.get("user_role") if session_data else None
    ic('Route changed to:-----313---', route, user_role)

    if page.route in ["/login", "/"] or not user_role:
        page.views.append(View("/login", [mylogin]))
        ic('Route: /login---315---')
    elif page.route == "/user" and user_role == "user":
        page.views.append(
            View("/user", [usr_page], scroll=ScrollMode.AUTO))
        ic('Route: /user---319---')
    elif page.route == "/admin" and user_role == "admin":
        page.views.append(
            View("/admin", [admin_page], scroll=ScrollMode.AUTO))
        ic('Route: /admin---323---')
    elif page.route == "/super_admin" and user_role == "super_admin":
        page.views.append(
            View("/super_admin", [super_admin_page], scroll=ScrollMode.AUTO))
        ic('Route: /super_admin---327---')
    else:
        page.go("/login")
        ic('Redirected to /login----330---')
    page.update()

async def handle_lifecycle_change(e):
    state = e.data
    ic(f"App lifecycle state changed: {state}",
       AppLifecycleState.HIDE, AppLifecycleState.INACTIVE)
    # Compare with enum values (strings)
    if state == AppLifecycleState.HIDE.value or state == AppLifecycleState.INACTIVE.value:
        # await save_session(page)
        if page.route == "/user":
            await usr_page.stop_socket_connection()
        print('----143---')

    elif state == AppLifecycleState.RESUME.value or state == AppLifecycleState.SHOW.value:
        session_data = await get_session_data(page)
        user_role = session_data.get("user_role") if session_data else None
        if user_role:
            if page.route != f"/{user_role}":
                page.go(f"/{user_role}")
            if page.route == "/user":
                print('----370---')
                await usr_page.handle_reconnect_pl_data()
        else:
            page.go("/login")
        page.update()
        print('----375---')

async def handle_disconnect(e):
    ic("[INFO] Page disconnected----345---")

async def handle_reconnect(e):
    await asyncio.sleep(0.5)
    session_data = await get_session_data(page)
    ic("[INFO] Page reconnected-----348---", session_data)
    if session_data:
        page.go(f"/{session_data['user_role']}")
    else:
        page.go("/login")

page.on_app_lifecycle_state_change = handle_lifecycle_change
page.on_disconnect = handle_disconnect
page.on_connect = handle_reconnect
page.on_route_change = myroute
page.go(page.route or "/login")
page.window.center()
page.browser_context_menu.disable()

ft.app(host='192.168.31.131', port=8504, target=main,
view=AppView.WEB_BROWSER, assets_dir='assets')