Avoiding or replacing multiple Where-Object statements - powershell

Question

I have a script containing a function Create-RebootData containing child functions such as Full and Full has a child function named Generate-RebootData where the output variable $Global:result is created.
Within Full there are multiple Where-Object two statements to filter the $Global:result into by date and time. Example below.
Is there an easier method to accomplish this instead of the multiple Where-Object statements?
The desired result are
Set-StrictMode -Version 1.0
Function Create-RebootData{
[CmdletBinding(SupportsShouldProcess=$true,DefaultParameterSetName="ViewOnly")]
Param(
[Parameter(ParameterSetName="ViewOnly")]
[Switch]$ViewOnly,
[Parameter(ParameterSetName="Full")]
[Switch]$Full,
)
Switch ($PSCmdlet.ParameterSetName){
"ViewOnly"
{
ViewOnly
}
"Full"
{
Full
}
}#end switch
Function Full{
Generate-RebootData
$Global:result | Where-Object {$_ -like '*fri?2:00*' -and $_.MaintenanceWindow `
-notmatch 'all.da.servers' -and $_.Server -match "^ITD"} | % {"{0}" -f $_.Server} | `
Out-File D:\Scripts\Full-Servers.txt -Append
$Global:result | Where-Object {$_ -like '*fri?2:00*' -and $_.MaintenanceWindow `
-notmatch 'all.da.servers' -and $_.Server -match "^ITD"} | `
% {"{0}" -f $_.MaintenanceWindow -replace `
"^NA.+", "$((get-date).AddDays(1).ToString('MM-dd-yy')) 01:50"} | `
Out-File D:\Scripts\Full-Times.txt -Append
}
Function Generate-RebootData{
IF(Get-Command Get-SCOMAlert -ErrorAction SilentlyContinue){}ELSE{Import-Module OperationsManager}
"Get Pend reboot servers from prod"
New-SCOMManagementGroupConnection -ComputerName Server01
$AlertData = Get-SCOMAlert -Criteria "MyString" | Select NetbiosComputerName
New-SCOMManagementGroupConnection -ComputerName Server02
$AlertData += Get-SCOMAlert -Criteria "MyString" | Select NetbiosComputerName
"Remove duplicates"
$AlertDataNoDupe = $AlertData | Sort NetbiosComputerName -Unique
"Create hash table"
$table = #{}
"Populate hash table"
$MaintenanceWindow = Import-Csv D:\Scripts\MaintenanceWindow2.csv
$MaintenanceWindow | ForEach-Object {$table[$_.Computername] = $_.'Collection Name'}
"Create final object"
$Global:result = #{}
"Begin Loop"
$Global:result = $AlertDataNoDupe | ForEach-Object { [PSCustomObject] #{
Server=$_.NetbiosComputerName
MaintenanceWindow= if($table.ContainsKey($_.NetbiosComputerName)){
$table[$_.NetbiosComputerName]
}Else { "Not Found!"}
PingCheck=IF(Test-Connection -Count 1 $_.NetbiosComputerName -Quiet -ErrorAction SilentlyContinue){"Alive"}
ELSE{"Dead"}
LastReboot=Try{$operatingSystem = Get-WmiObject Win32_OperatingSystem -ComputerName $_.NetbiosComputerName -ErrorAction Stop
[Management.ManagementDateTimeConverter]::ToDateTime($operatingSystem.LastBootUpTime)}
Catch{"Access Denied!"}
} }
}

Answer 1

You can do it like this:
$Global:result | Where-Object {
$_ -like '*fri?2:00*' -and
$_.MaintenanceWindow -notmatch 'all.da.servers' -and
$_.Server -match '^ITD'
} | ForEach-Object {
'{0}' -f $_.Server | Out-File D:\Scripts\Full-Servers.txt -Append
'{0}' -f $_.MaintenanceWindow -replace '^NA.+',
'{0} 01:50' -f (Get-Date).AddDays(1).ToString('MM-dd-yy') | Out-File D:\Scripts\Full-Times.txt -Append
}
But I agree with Mathias' comment, this function probably should be refactored.