#Running batches as jobs


function Get-PCBatchJob{

    [CmdletBinding()]
    param (
        $Computers,
        [switch]$printers
    )
    $modulePath = (get-item $PSScriptRoot).Parent.FullName
    $modulePath = "$modulePath\Get-PC.psd1"
    $TotalItems = $Computers.count
    $ActiveJobs = @()
    $itemIndex = 0
    foreach ($c in $computers){
        
        if($printers){
            JobsProgressBar $c $itemIndex $TotalItems 1
            $ActiveJobs += Start-Job -Name $c -ArgumentList $c,$modulePath -ScriptBlock{
            Import-Module $args[1] -WarningAction Ignore
            get-pc $args[0] -SHSPrinter}
        }
        else{
            JobsProgressBar $c $itemIndex $TotalItems 1
            $ActiveJobs += Start-Job -Name $c -ArgumentList $c,$modulePath -ScriptBlock{
            Import-Module $args[1] -WarningAction Ignore
            get-pc $args[0]}
        }
        $itemIndex++
    }

    $completedJobs = @()
    $itemIndex = 0
    JobsProgressBar 'Waiting on jobs to be' $itemIndex $TotalItems 2
    While(!$jobsDone){
        $jobsDone = $true  
        foreach ($job in $ActiveJobs){
            if($job.State -eq 'Running'){
                $jobsDone = $false
            }
            if($job.State -eq 'Completed' -and !$completedJobs.Contains($job)){
                $itemIndex++
                JobsProgressBar $job.Name $itemIndex $TotalItems 2
                $completedJobs += $job            
            }
        }
        Start-Sleep -Milliseconds 1
    }
    $itemIndex = 0
    foreach($job in $completedJobs) {
        $itemIndex++
        JobsProgressBar $job.Name $itemIndex $TotalItems 3
        $output = Receive-Job $job | Select-Object * -ExcludeProperty RunspaceId, PSComputerName, PSShowComputerName
        Remove-job $job
        Write-Output $output
        
    }
    
}

function JobsProgressBar {
    param (
        $item,
        $currentItemIndex,
        $TotalItems,
        $stage
    )
    switch ($stage) {
        1 { Write-Progress -Activity "Starting Jobs" -Status "$item Job Started ($currentItemIndex/$TotalItems)" -PercentComplete (($currentItemIndex/$TotalItems) * 100)}
        2 { Write-Progress -Activity "Jobs Running" -Status "$item Completed ($currentItemIndex/$TotalItems)" -PercentComplete (($currentItemIndex/$TotalItems) * 100)}
        3 { Write-Progress -Activity "Retrieving Data" -Status "$item Completed ($currentItemIndex/$TotalItems)" -PercentComplete (($currentItemIndex/$TotalItems) * 100)}
        Default {}
    }

}