# ==============================================================================================
# 
# Microsoft PowerShell Source File -- Created with SAPIEN Technologies PrimalScript 4.1
# 
# NAME: Display-NetAgentsByHostName.ps1
# 
# AUTHOR: Jeremy D. Pavleck , JPavleck@GMail.com
# DATE  : 6/5/2008
# 
# COMMENT: A simple function that increases the information of your SCOM command shell. This one
#	returns the hostnames of the managed devices as well as color coding them based on Health State.
# 
# ==============================================================================================

function Display-NetAgentsByHostName([switch]$short)
{
	function LookUp([string]$ip) 
	{
		trap {
		"Unable to resolve IP"
		continue;
		}
	 ([System.Net.Dns]::GetHostByAddress($ip)).HostName
	}	
	Get-RemotelyManagedDevice | ForEach-Object {
		If (!$short) {
				If ($_.HealthState -eq "Success") {
					Write-Host ("IP Address $($_.Name) resolves to '$(Lookup($_.Name))' - Managed by server: $($_.ProxyAgentPrincipalName.Split('.;')[0])" +
							    "in Management group: $($_.ManagementGroup) - Health State: $($_.HealthState)`n") -ForeGroundColor Green
							  } elseif ($_.HealthState -eq "Warning") {
					Write-Host ("IP Address $($_.Name) resolves to '$(Lookup($_.Name))' - Managed by server: $($_.ProxyAgentPrincipalName.Split('.;')[0])" +
							    "in Management group: $($_.ManagementGroup) - Health State: $($_.HealthState)`n") -ForeGroundColor Yellow
							  } elseif ($_.HealthSTate -eq "Error") {
					Write-Host ("IP Address $($_.Name) resolves to '$(Lookup($_.Name))' - Managed by server: $($_.ProxyAgentPrincipalName.Split('.;')[0])" +
							    "in Management group: $($_.ManagementGroup) - Health State: $($_.HealthState)`n") -ForeGroundColor Red
							    }
		} else {
			If ($_.HealthState -eq "Success") {
				Write-Host "HEALTHY - Host: $(Lookup($_.Name)) - IP: $($_.Name)" -ForeGroundColor Green
				} elseif ($_.HealthState -eq "Warning") {
				Write-Host "HEALTH WARNING! State: $($_.HealthState) - Host: $(Lookup($_.Name)) - IP: $($_.Name)" -ForeGroundColor Yellow
				} elseif ($_.HealthState -eq "Error") {
				Write-Host "HEALTH ERROR! State: $($_.HealthState) - Host: $(Lookup($_.Name)) - IP: $($_.Name)" -ForeGroundColor Red
				}
			}
	}
}