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@echo off
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:: ============================================
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:: Auto fix Mihomo TUN network route
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:: Simulate: mihomo ICS enable (share to WLAN) then disable
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:: ============================================
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set NIC_NAME=mihomo
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set HOME_NIC=WLAN
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set LOG_FILE=D:\fix-network.log
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echo [%date% %time%] Event detected, checking NIC... >> "%LOG_FILE%"
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:: Check if mihomo NIC is up
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powershell -ExecutionPolicy Bypass -Command "if ((Get-NetAdapter -Name '%NIC_NAME%' -ErrorAction SilentlyContinue).Status -eq 'Up') { exit 0 } else { exit 1 }"
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if %errorlevel% neq 0 (
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    echo [%date% %time%] NIC "%NIC_NAME%" not connected, skip. >> "%LOG_FILE%"
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    goto END
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)
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echo [%date% %time%] NIC "%NIC_NAME%" is up, wait 8s... >> "%LOG_FILE%"
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timeout /t 8 /nobreak >nul
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echo [%date% %time%] Enable ICS: %NIC_NAME% share to %HOME_NIC%... >> "%LOG_FILE%"
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powershell -ExecutionPolicy Bypass -Command ^
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  "regsvr32 /s hnetcfg.dll; " ^
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  "$m = New-Object -ComObject HNetCfg.HNetShare; " ^
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  "$pubConn = $null; " ^
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  "$prvConn = $null; " ^
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  "foreach ($c in $m.EnumEveryConnection) { " ^
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  "  $props = $m.NetConnectionProps($c); " ^
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  "  if ($props.Name -eq 'mihomo') { $pubConn = $c }; " ^
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  "  if ($props.Name -eq 'WLAN') { $prvConn = $c }; " ^
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  "}; " ^
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  "if ($pubConn -and $prvConn) { " ^
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  "  $pubCfg = $m.INetSharingConfigurationForINetConnection($pubConn); " ^
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  "  $prvCfg = $m.INetSharingConfigurationForINetConnection($prvConn); " ^
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  "  $prvCfg.EnableSharing(1); " ^
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  "  $pubCfg.EnableSharing(0); " ^
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  "  Write-Host 'ICS enabled: mihomo -> WLAN'; " ^
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  "  Start-Sleep -Seconds 3; " ^
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  "  $pubCfg.DisableSharing(); " ^
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  "  $prvCfg.DisableSharing(); " ^
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  "  Write-Host 'ICS disabled'; " ^
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  "} else { " ^
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  "  Write-Host 'ERROR: NIC not found'; " ^
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  "  if (-not $pubConn) { Write-Host 'mihomo not found' }; " ^
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  "  if (-not $prvConn) { Write-Host 'WLAN not found' }; " ^
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  "}"
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timeout /t 3 /nobreak >nul
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ipconfig /flushdns
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echo [%date% %time%] Fix completed! >> "%LOG_FILE%"
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:END
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echo.
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echo ========================================
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echo   Done! Check log: D:\fix-network.log
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echo ========================================
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pause
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exit /b 0