Param 
( 
    [Parameter(Mandatory = $false)] 
    [switch]$Trial, 
    [switch]$Free, 
    [switch]$Purchased, 
    [Switch]$Expired, 
    [Switch]$Active,
    [string]$UserName,  
    [string]$Password 
) 

#Check for MSOnline module 
$Module=Get-Module -Name MSOnline -ListAvailable  
if($Module.count -eq 0) 
{ 
 Write-Host MSOnline module is not available  -ForegroundColor yellow  
 $Confirm= Read-Host Are you sure you want to install module? [Y] Yes [N] No 
 if($Confirm -match "[yY]") 
 { 
  Install-Module MSOnline 
  Import-Module MSOnline
 } 
 else 
 { 
  Write-Host MSOnline module is required to connect AzureAD.Please install module using Install-Module MSOnline cmdlet. 
  Exit
 }
} 
 
#Storing credential in script for scheduling purpose/ Passing credential as parameter  
if(($UserName -ne "") -and ($Password -ne ""))  
{  
 $SecuredPassword = ConvertTo-SecureString -AsPlainText $Password -Force  
 $Credential  = New-Object System.Management.Automation.PSCredential $UserName,$SecuredPassword  
 Connect-MsolService -Credential $credential 
}  
else  
{  
 Connect-MsolService | Out-Null  
} 

$Result=""   
$Results=@()  
$Print=0
$ShowAllSubscription=$False
$PrintedOutput=0

#Output file declaration 
$ExportCSV=".\LicenseExpiryReport_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv" 

#Check for filters
if((!($Trial.IsPresent)) -and (!($Free.IsPresent)) -and (!($Purchased.IsPresent)) -and (!($Expired.IsPresent)) -and (!($Active.IsPresent)))
{
 $ShowAllSubscription=$true
}

#FriendlyName list for license plan 
$FriendlyNameHash=@()
$FriendlyNameHash=Get-Content -Raw -Path .\LicenseFriendlyName.txt -ErrorAction Stop | ConvertFrom-StringData 

#Get available subscriptions in the tenant
$Subscriptions= Get-MsolSubscription | foreach{
 $SubscriptionName=$_.SKUPartNumber
 $SubscribedOn=$_.DateCreated
 $ExpiryDate=$_.NextLifeCycleDate
 $Status=$_.Status
 $TotalLicenses=$_.TotalLicenses
 $Print=0

 #Convert Skuid to friendly name  
 $EasyName=$FriendlyNameHash[$SubscriptionName] 
 $EasyName
 if(!($EasyName)) 
 {
  $NamePrint=$SubscriptionName
 } 
 else 
 {
  $NamePrint=$EasyName
 } 

 #Convert Subscribed date to friendly subscribed date
 $SubscribedDate=(New-TimeSpan -Start $SubscribedOn -End (Get-Date)).Days
 if($SubscribedDate -eq 0)
 {
  $SubscribedDate="Today"
 }
 else
 {
  $SubscribedDate="$SubscribedDate days ago"
 }
 $SubscribedDate="(" + $SubscribedDate + ")"
 $SubscribedDate="$SubscribedOn $SubscribedDate"

 #Determine subscription type
 If($_.IsTrial -eq $False)
 {
  if(($SubscriptionName -like "*Free*") -or ($ExpiryDate -eq $null))
  {
   $SubscriptionType="Free"
  }
  else
  {
   $SubscriptionType="Purchased"
  }
 }
 else
 {
  $SubscriptionType="Trial"
 }

 #Friendly Expiry Date
 if($ExpiryDate -ne $null)
 {
  $FriendlyExpiryDate=(New-TimeSpan -Start (Get-Date) -End $ExpiryDate).Days
  if($Status -eq "Enabled")
  {
   $FriendlyExpiryDate="Will expire in $FriendlyExpiryDate days"
  }
  elseif($Status -eq "Warning")
  {
   $FriendlyExpiryDate="Expired.Will suspend in $FriendlyExpiryDate days"
  }
  elseif($Status -eq "Suspended")
  {
   $FriendlyExpiryDate="Expired.Will delete in $FriendlyExpiryDate days"
  }
  elseif($Status -eq "LockedOut")
  {
   $FriendlyExpiryDate="Subscription is locked.Please contact Microsoft"
  }
 }
 else
 {
  $ExpiryDate="-"
  $FriendlyExpiryDate="Never Expires"
 }

 #Check for filters
 if($ShowAllSubscription -eq $true)
 {
  $Print=1
 }
 else
 {
  if(($Trial.IsPresent) -and ($SubscriptionType -eq "Trial"))
  {
   $Print=1
  }
  if(($Free.IsPresent) -and ($SubscriptionType -eq "Free"))
  {
   $Print=1
  }
  if(($Purchased.IsPresent) -and ($SubscriptionType -eq "Purchased"))
  {
   $Print=1
  }
  if(($Expired.IsPresent) -and ($Status -ne "Enabled"))
  {
   $Print=1
  }
  if(($Active.IsPresent) -and ($Status -eq "Enabled"))
  {
   $Print=1
  }
 }
 


 #Export result to csv
 if($Print -eq 1)
 {
  $PrintedOutput++
  $Result=@{'Subscription Name'=$SubscriptionName;'Friendly Subscription Name'=$NamePrint;'Subscribed Date'=$SubscribedDate;'Total Licenses'=$TotalLicenses;'License Expiry Date/Next LifeCycle Activity Date'=$ExpiryDate;'Friendly Expiry Date'=$FriendlyExpiryDate;'Subscription Type'=$SubscriptionType;'Status'=$Status}
  $Results= New-Object PSObject -Property $Result  
  $Results | Select-Object 'Subscription Name','Friendly Subscription Name','Subscribed Date','Total Licenses','Subscription Type','License Expiry Date/Next LifeCycle Activity Date','Friendly Expiry Date','Status' | Export-Csv -Path $ExportCSV -Notype -Append 
 }
}

#Open output file after execution 
if((Test-Path -Path $ExportCSV) -eq "True") 
{
 Write-Host `nOffice 365 license expiry report available in: $ExportCSV -ForegroundColor Green 
 Write-Host `nThe Output file contains $PrintedOutput subscriptions
 $Prompt = New-Object -ComObject wscript.shell 
 $UserInput = $Prompt.popup("Do you want to open output files?",` 
 0,"Open Files",4) 
 If ($UserInput -eq 6) 
 { 
  Invoke-Item "$ExportCSV" 
 } 
}
else
{
 Write-Host No subscription found.
}