param(
    [string]$Solution = 'C:\Users\tonycao\work\twincat3-auto-cli\TwinCAT_EL6695_Primary\TwinCATProject1.sln',
    [string]$TargetNetId = '169.254.176.217.1.1'
)
$ErrorActionPreference = 'Continue'
$LogFile = 'C:\Users\tonycao\work\twincat3-auto-cli\TwinCAT_EL6695_Primary\Logs\scan-demo.log'
New-Item -ItemType Directory -Force -Path (Split-Path $LogFile) | Out-Null

function Log($m) {
    $line = (Get-Date -Format 'HH:mm:ss') + "  $m"
    Write-Host $line
    Add-Content -Path $LogFile -Value $line -Encoding utf8
}

Log '=== Open XAE for scan demo ==='
try { $dte = New-Object -ComObject TcXaeShell.DTE.17.0 } catch { $dte = New-Object -ComObject TcXaeShell.DTE.15.0 }
$dte.MainWindow.Visible = $true
try { $dte.SuppressUI = $false } catch { }

Log "Open solution: $Solution"
$dte.Solution.Open($Solution)
for ($i = 1; $i -le 120; $i++) {
    Start-Sleep -Seconds 1
    if ($dte.Solution.IsOpen) { Log "IsOpen after ${i}s"; break }
}

$sm = $null
for ($i = 1; $i -le 30; $i++) {
    try { $sm = $dte.Solution.Projects.Item(1).Object; if ($sm) { Log 'SysManager ready'; break } } catch {}
    Start-Sleep -Seconds 3
}
Log 'Wait 20s for tree load...'
Start-Sleep -Seconds 20

# Set target and activate to go online
try { $sm.SetTargetNetId($TargetNetId); Log 'SetTargetNetId OK' } catch { Log "SetTargetNetId err: $_" }
Log 'Activate config...'
try { $sm.ActivateConfiguration(); Log 'ActivateConfiguration OK' } catch { Log "ActivateConfiguration err: $_" }
Start-Sleep -Seconds 10

# Find EtherCAT device and select it in solution explorer
try {
    $io = $sm.LookupTreeItem('TIID')
    if ($io -and $io.ChildCount -ge 1) {
        $ecat = $io.Child(1)
        Log ("Found EtherCAT device: " + $ecat.Name)

        # Select in Solution Explorer
        $se = $dte.ToolWindows.SolutionExplorer
        $se.Parent.Activate()
        Start-Sleep -Seconds 2

        function Find-Node($items) {
            if ($null -eq $items) { return $null }
            foreach ($it in $items) {
                try { if ($it.Name -like '*EtherCAT*') { return $it } } catch {}
                try { $sub = Find-Node $it.UIHierarchyItems; if ($sub) { return $sub } } catch {}
            }
            return $null
        }

        $node = Find-Node $se.UIHierarchyItems
        if ($node) {
            $node.Select(1)
            Log "Selected node: $($node.Name)"
            Start-Sleep -Seconds 3
        } else {
            Log "WARN: Could not select EtherCAT node in UI"
        }
    }
} catch { Log "Tree selection err: $($_.Exception.Message)" }

# Try scan command
# 扫 = U+626B = 25131, 描 = U+63CF = 25551
$sao = [char]25131
$miao = [char]25551
$cmdScan = "TwinCAT.$sao$miao"
Log "Execute scan command: [$cmdScan]"
try { $dte.ExecuteCommand($cmdScan); Log 'Scan command OK' } catch { Log "Scan command err: $($_.Exception.Message)" }

Log ''
Log '=== XAE window open - 60s for observation ==='
Start-Sleep -Seconds 60

try { $dte.Quit() } catch {}
Log '=== Demo done ==='