Big progress.

Testing/simple_for.ps1

@@ -11,32 +11,32 @@ $HOSTS_FILE = "$SCRIPT_PATH/hosts.txt"
 
 class VirtualizationServer {
     [string]$url
-    [Boolean] __FindHost ($vname) {
+    [Boolean] _FindHost ($vname) {
         $type=$this.GetType().BaseType
-        Write-Output "Find Host not implemented type $type"
+        Write-Host "Find Host not implemented type $type"
         return $false
     }
     [Boolean] FindHost ($vname) {
-        Write-Output 123
-        return $this.__FindHost($vname)
+        return $this._FindHost($vname)
     }
 
 }
 
 class HypervisorServer: VirtualizationServer{
-    [Boolean] __FindHost ($vname) {
-        # Invoke-Command -ComputerName $this.url { Get-VM } | Write-Host
+    [Boolean] _FindHost ($vname) {
         $result=$false
         try
         {
-            $result=Invoke-Command -ComputerName $this.url {
+            Invoke-Command -ComputerName $this.url {
                 Param ($name) Get-VM -Name $name
-            } -ArgumentList $vname | Out-Null
+            } -ArgumentList $vname
+            $result=$?
         }
         catch
         {
             Format ("{0}: {1}",$this.url,$Error[0]) | Write-Debug
         }
+
         return $result
     }
 }
@@ -87,49 +87,46 @@ class VirtualizerManager{
         }
         foreach ($_vname in $hostlist)
         {
-            foreach ($server in $this.connected_servers)
-            {
-                Write-Host "<>< $server ><>"
-                $result = $server.FindHost($_vname)
-                Write-Host [String]::Format(">> {0} found in {1}? {2}", $_vname, $server.url, $result)
+            for ($num = 0 ; $num -le $this._connected_servers.Length -1 ; $num++){
+                    $server= $this._connected_servers[$num]
+                    $result = $server.FindHost($_vname)
+                    [String]::Format(">> {0} found in {1}? {2}", $_vname, $server.url, $result) | Write-Host
+            }
             }
         }
+
     }
 
-}
-
-
-# Get hyperv's
-function Get-Hosts-From-File($filepath)
-{
+    # Get hyperv's
+    function Get-Hosts-From-File($filepath)
+    {
     ## In a future use a yaml as a .conf (with the hyperv and vmware listed)
     $file_content = Get-Content "$filepath"
     $splitted_file_content = $file_content.Split()
     $host_array=@()
     foreach ($hostname in $splitted_file_content)
     {
-        if ($hostname)
-        {
-            $host_array+=$hostname
-        }
+    if ($hostname)
+    {
+    $host_array+=$hostname
+    }
     }
     return $host_array
-}
+    }
 
-# Advanced params?
-# https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_functions_advanced_parameters?view=powershell-7.2
-function load_hyperv($manager) {
+    # Advanced params?
+    # https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_functions_advanced_parameters?view=powershell-7.2
+    function load_hyperv($manager) {
     $hyperv_url = Get-Hosts-From-File($HYPERV_FILE)
     foreach ($url in $hyperv_url) {
-        $manager.append_session([HypervisorServer], $url)
+    $manager.append_session([HypervisorServer], $url)
+    }
     }
-}
 
 
-function Main{
+    function Main{
     $manager = [VirtualizerManager]::new()
     load_hyperv($manager)
-    $manager.connected_servers()
     $vmhosts= Get-Hosts-From-File($HOSTS_FILE)
     $manager.find_host($vmhosts)
 }

placeholder.md

@@ -16,4 +16,14 @@ At C:\Users\Mamoncete\Desktop\test.ps1:93 char:17
 +                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     + CategoryInfo          : InvalidOperation: (:) [], ParentContainsErrorRecordException
     + FullyQualifiedErrorId : MethodNotFound
-```
+```
+
+
+El for fa el lio?
+
+You cannot call a method on a null-valued expression.
+At C:\Users\Mamoncete\Desktop\test.ps1:50 char:8
++        $this._connected_servers[$num].FindHost("Test")
++        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    + CategoryInfo          : InvalidOperation: (:) [], ParentContainsErrorRecordException
+    + FullyQualifiedErrorId : InvokeMethodOnNull