@echo off
title Fix Web Access

:: Auto elevate to admin
net session >nul 2>&1
if %errorLevel% neq 0 (
    echo Requesting admin privileges...
    powershell -Command "Start-Process cmd -ArgumentList '/c ""%~f0""' -Verb RunAs"
    exit /b
)

echo ============================================
echo   Fix Web Backend Access
echo ============================================
echo.

:: 1. Disable residual system proxy (blocks localhost)
echo [1/4] Disabling system proxy...
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 0 /f >nul 2>&1
reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /f >nul 2>&1
echo Done.
echo.

:: 2. Add firewall rules for Python
echo [2/4] Adding firewall rules for Python...
for /f "delims=" %%i in ('where python') do set PYTHON_PATH=%%i
if not defined PYTHON_PATH (
    echo ERROR: Python not found in PATH
    pause
    exit /b 1
)
echo Python path: %PYTHON_PATH%
netsh advfirewall firewall delete rule name="PythonWeb" >nul 2>&1
netsh advfirewall firewall add rule name="PythonWeb" dir=in action=allow program="%PYTHON_PATH%" enable=yes profile=any >nul
netsh advfirewall firewall delete rule name="PythonWebOut" >nul 2>&1
netsh advfirewall firewall add rule name="PythonWebOut" dir=out action=allow program="%PYTHON_PATH%" enable=yes profile=any >nul
echo Done.
echo.

:: 3. Flush DNS cache
echo [3/4] Flushing DNS cache...
ipconfig /flushdns >nul 2>&1
echo Done.
echo.

:: 4. Show excluded port ranges for reference
echo [4/4] TCP excluded port ranges (for reference):
netsh interface ipv4 show excludedportrange protocol=tcp
echo.

echo ============================================
echo  Fix complete! Now:
echo  1. Close ALL browser windows and reopen
echo  2. Run: python web_server.py
echo  3. Open: http://127.0.0.1:5050/
echo ============================================
pause