# Load the PowerCLI SnapIn and set the configuration
Add-PSSnapin VMware.VimAutomation.Core -ea "SilentlyContinue"
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -Confirm:$false | Out-Null

# Get the vCenter Server address, username and password as PSCredential
$vCenterServer = Read-Host "Enter vCenter Server host name (DNS with FQDN or IP address)"
$vCenterUser = Read-Host "Enter your user name (DOMAIN\User or [email protected])"
$vCenterUserPassword = Read-Host "Enter your password (this will be converted to a secure string)" -AsSecureString:$true
$Credentials = New-Object System.Management.Automation.PSCredential -ArgumentList $vCenterUser,$vCenterUserPassword

# Connect to the vCenter Server with collected credentials
Connect-VIServer -Server $vCenterServer -Credential $Credentials | Out-Null
Write-Host "Connected to your vCenter server $vCenterServer" -ForegroundColor Green

Add-PSSnapin VMware.VimAutomation.Core -ea "SilentlyContinue"
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -Confirm:$false | Out-Null



$vms = Get-VM


$vmInfo = @()

foreach ($vm in $vms) {
   
    $networkAdapters = Get-NetworkAdapter -VM $vm
    
    foreach ($adapter in $networkAdapters) {
        $portID = $adapter.ExtensionData.Backing.Port.PortKey
        
        # Only process if the portID starts with "c-"
        if ($portID -and $portID.StartsWith("c-")) {
            # Create a custom object with VM and port information
            $vmData = [PSCustomObject]@{
                VMName = $vm.Name
                PowerState = $vm.PowerState
                NetworkName = $adapter.NetworkName
                PortID = $portID
            }
            
            # Add the object to the array
            $vmInfo += $vmData
        }
    }
}


$vmInfo | Export-Csv -Path "C:\source\VMPortInfo.csv" -NoTypeInformation

# Load the PowerCLI SnapIn and set the configuration
Add-PSSnapin VMware.VimAutomation.Core -ea "SilentlyContinue"
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -Confirm:$false | Out-Null

# Get the vCenter Server address, username and password as PSCredential
$vCenterServer = Read-Host "Enter vCenter Server host name (DNS with FQDN or IP address)"
$vCenterUser = Read-Host "Enter your user name (DOMAIN\User or [email protected])"
$vCenterUserPassword = Read-Host "Enter your password (this will be converted to a secure string)" -AsSecureString:$true
$Credentials = New-Object System.Management.Automation.PSCredential -ArgumentList $vCenterUser,$vCenterUserPassword

# Connect to the vCenter Server with collected credentials
Connect-VIServer -Server $vCenterServer -Credential $Credentials | Out-Null
Write-Host "Connected to your vCenter server $vCenterServer" -ForegroundColor Green


# Get all VMs with portID starting with "c-"
$problematicVMs = Get-VM | Get-NetworkAdapter | Where-Object { $_.ExtensionData.Backing.Port.PortKey -like "c-*" } | Select-Object -ExpandProperty Parent -Unique

# Print out the VMs with problematic portIDs
Write-Host "VMs with portID 'c-':"
$problematicVMs | ForEach-Object { Write-Host $_.Name }

# Ask for confirmation to fix the issues
$confirmation = Read-Host "Do you want to fix those issues for the following VMs - resulting in 5sec Network Connectivity loss? (yes/no)"

if ($confirmation -eq "yes") {
    foreach ($vm in $problematicVMs) {
        Write-Host "Processing $($vm.Name)..."
        
        # Disconnect the network adapter
        Get-NetworkAdapter -VM $vm | Where-Object { $_.ExtensionData.Backing.Port.PortKey -like "c-*" } | Set-NetworkAdapter -Connected $false -Confirm:$false
        
        # Wait for 5 seconds
        Start-Sleep -Seconds 5
        
        # Reconnect the network adapter
        Get-NetworkAdapter -VM $vm | Where-Object { $_.ExtensionData.Backing.Port.PortKey -like "c-*" } | Set-NetworkAdapter -Connected $true -Confirm:$false
        
        Write-Host "Fixed network adapter for $($vm.Name)"
    }
    
    # List all affected VMs
    Write-Host "Affected VMs:"
    $problematicVMs | ForEach-Object { Write-Host $_.Name }
    
    # Option to read out IP and ping VMs
    $pingOption = Read-Host "Do you want to read out IPs and ping the affected VMs? (yes/no)"
    
    if ($pingOption -eq "yes") {
        foreach ($vm in $problematicVMs) {
            $ip = $vm.Guest.IPAddress[0]
            if ($ip) {
                Write-Host "$($vm.Name) IP: $ip"
                $pingResult = Test-Connection -ComputerName $ip -Count 1 -Quiet
                if ($pingResult) {
                    Write-Host "Ping successful for $($vm.Name)"
                } else {
                    Write-Host "Ping failed for $($vm.Name)"
                }
            } else {
                Write-Host "Unable to retrieve IP for $($vm.Name)"
            }
        }
    }
} else {
    Write-Host "Operation cancelled. No changes were made."
}