#Accept input paramenters 
param(
[string]$UserName, 
[string]$Password, 
[switch]$MFA,
[int]$Action
) 

#Connect to Microsoft Teams
$Module=Get-Module -Name MicrosoftTeams -ListAvailable 
if($Module.count -eq 0)
{
 Write-Host MicrosoftTeams 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 MicrosoftTeams
 }
 else
 {
  Write-Host MicrosoftTeams module is required.Please install module using Install-Module MicrosoftTeams cmdlet.
  Exit
 }
}
Write-Host Importing Microsoft Teams module... -ForegroundColor Yellow
#Autentication using MFA
if($mfa.IsPresent)
{
 $Team=Connect-MicrosoftTeams
}

#Authentication using non-MFA
else
{
 #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
  $Team=Connect-MicrosoftTeams -Credential $Credential
 }
 else
 {  
  $Team=Connect-MicrosoftTeams
 }
}

#Check for Teams connectivity
If($Team -ne $null)
{
 Write-host `nSuccessfully connected to Microsoft Teams -ForegroundColor Green
}
else
{
 Write-Host Error occurred while creating Teams session. Please try again -ForegroundColor Red
 exit
}

[boolean]$Delay=$false
Do {
 if($Action -eq "")
 {
  if($Delay -eq $true)
  {
   Start-Sleep -Seconds 2
  }
  $Delay=$true
 Write-Host ""
 Write-host `nMicrosoft Teams Reporting -ForegroundColor Yellow
 Write-Host  "    1.All Teams in organization" -ForegroundColor Cyan
 Write-Host  "    2.All Teams members and owners report" -ForegroundColor Cyan
 Write-Host  "    3.Specific Teams' members and Owners report" -ForegroundColor Cyan
 Write-Host  "    4.All Teams' owners report" -ForegroundColor Cyan
 Write-Host  "    5.Specific Teams' owners report" -ForegroundColor Cyan
 Write-Host `nTeams Channel Reporting -ForegroundColor Yellow
 Write-Host  "    6.All channels in organization" -ForegroundColor Cyan
 Write-Host  "    7.All channels in specific Team" -ForegroundColor Cyan
 Write-Host  "    8.Members and Owners Report of Single Channel" -ForegroundColor Cyan
 Write-Host  "    0.Exit" -ForegroundColor Cyan
 Write-Host `nPrivate Channel Management and Reporting -ForegroundColor Yellow
 Write-Host  "    You can download the script from https://blog.admindroid.com/managing-private-channels-in-microsoft-teams/" -ForegroundColor Cyan
 Write-Host ""
 $i = Read-Host 'Please choose the action to continue' 
 }
 else
 {
  $i=$Action
 }

 Switch ($i) {
  1 {
     $Result=""  
     $Results=@() 
     $Path="./All Teams Report_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
     Write-Host Exporting all Teams report...
     $Count=0
     Get-Team | foreach {
     $TeamName=$_.DisplayName
     Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName"
     $Count++
     $Visibility=$_.Visibility
     $MailNickName=$_.MailNickName
     $Description=$_.Description
     $Archived=$_.Archived
     $GroupId=$_.GroupId
     $ChannelCount=(Get-TeamChannel -GroupId $GroupId).count
     $TeamUser=Get-TeamUser -GroupId $GroupId
     $TeamMemberCount=$TeamUser.Count
     $TeamOwnerCount=($TeamUser | ?{$_.role -eq "Owner"}).count
     $Result=@{'Teams Name'=$TeamName;'Team Type'=$Visibility;'Mail Nick Name'=$MailNickName;'Description'=$Description;'Archived Status'=$Archived;'Channel Count'=$ChannelCount;'Team Members Count'=$TeamMemberCount;'Team Owners Count'=$TeamOwnerCount}
     $Results= New-Object psobject -Property $Result
     $Results | select 'Teams Name','Team Type','Mail Nick Name','Description','Archived Status','Channel Count','Team Members Count','Team Owners Count' | Export-Csv $Path -NoTypeInformation -Append
     }
     Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName" -Completed
     if((Test-Path -Path $Path) -eq "True") 
     {
      Write-Host `nReport available in $Path -ForegroundColor Green
     }
    }
  2 {
     $Result=""  
     $Results=@() 
     $Path="./All Teams Members and Owner Report_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
     Write-Host Exporting all Teams members and owners report...
     $Count=0
     Get-Team | foreach {
      $TeamName=$_.DisplayName
      Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName"
      $Count++
      $GroupId=$_.GroupId
      Get-TeamUser -GroupId $GroupId | foreach {
       $Name=$_.Name
       $MemberMail=$_.User
       $Role=$_.Role
       $Result=@{'Teams Name'=$TeamName;'Member Name'=$Name;'Member Mail'=$MemberMail;'Role'=$Role}
       $Results= New-Object psobject -Property $Result
       $Results | select 'Teams Name','Member Name','Member Mail','Role' | Export-Csv $Path -NoTypeInformation -Append
      }
     }
     Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName" -Completed
     if((Test-Path -Path $Path) -eq "True") 
     {
      Write-Host `nReport available in $Path -ForegroundColor Green
     }
    }

  3 {
     $Result=""  
     $Results=@() 
     $TeamName=Read-Host Enter Teams name to get members report "(Case sensitive)":
     $GroupId=(Get-Team -DisplayName $TeamName).GroupId 
     Write-Host Exporting $TeamName"'s" Members and Owners report...
     $Path=".\MembersOf $TeamName Team Report _$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
     Get-TeamUser -GroupId $GroupId | foreach {
      $Name=$_.Name
      $MemberMail=$_.User
      $Role=$_.Role
      $Result=@{'Member Name'=$Name;'Member Mail'=$MemberMail;'Role'=$Role}
      $Results= New-Object psobject -Property $Result
      $Results | select 'Member Name','Member Mail','Role' | Export-Csv $Path -NoTypeInformation -Append
     }
     if((Test-Path -Path $Path) -eq "True") 
     {
      Write-Host `nReport available in $Path -ForegroundColor Green
     }
    }

  4 {
     $Result=""  
     $Results=@() 
     $Path="./All Teams Owner Report_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
     Write-Host Exporting all Teams owner report...
     $Count=0
     Get-Team | foreach {
      $TeamName=$_.DisplayName
      Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName"
      $Count++
      $GroupId=$_.GroupId
      Get-TeamUser -GroupId $GroupId | ?{$_.role -eq "Owner"} | foreach {
       $Name=$_.Name
       $MemberMail=$_.User
       $Result=@{'Teams Name'=$TeamName;'Owner Name'=$Name;'Owner Mail'=$MemberMail}
       $Results= New-Object psobject -Property $Result
       $Results | select 'Teams Name','Owner Name','Owner Mail' | Export-Csv $Path -NoTypeInformation -Append
      }
     }
     Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName" -Completed
     if((Test-Path -Path $Path) -eq "True") 
     {
      Write-Host `nReport available in $Path -ForegroundColor Green
     }
    }

  5 {
     $Result=""  
     $Results=@() 
     $TeamName=Read-Host Enter Teams name to get owners report "(Case sensitive)":
     $GroupId=(Get-Team -DisplayName $TeamName).GroupId 
     Write-Host Exporting $TeamName team"'"s Owners report...
     $Path=".\OwnersOf $TeamName team report_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
     Get-TeamUser -GroupId $GroupId | ?{$_.role -eq "Owner"} | foreach {
      $Name=$_.Name
      $MemberMail=$_.User
      $Result=@{'Member Name'=$Name;'Member Mail'=$MemberMail}
      $Results= New-Object psobject -Property $Result
      $Results | select 'Member Name','Member Mail' | Export-Csv $Path -NoTypeInformation -Append
     }
     if((Test-Path -Path $Path) -eq "True") 
     {
      Write-Host `nReport available in $Path -ForegroundColor Green
     }
    }

  6 {
      $Result=""  
      $Results=@() 
      $Path="./All Channels Report_$((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
      Write-Host Exporting all Channels report...
      $Count=0
      Get-Team | foreach {
       $TeamName=$_.DisplayName
       Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing Team: $TeamName "
       $Count++
       $GroupId=$_.GroupId
       Get-TeamChannel -GroupId $GroupId | foreach {
        $ChannelName=$_.DisplayName
        Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing Team: $TeamName "`n" Currently Processing Channel: $ChannelName"
        $MembershipType=$_.MembershipType
        $Description=$_.Description
        $ChannelUser=Get-TeamChannelUser -GroupId $GroupId -DisplayName $ChannelName
        $ChannelMemberCount=$ChannelUser.Count
        $ChannelOwnerCount=($ChannelUser | ?{$_.role -eq "Owner"}).count
        $Result=@{'Teams Name'=$TeamName;'Channel Name'=$ChannelName;'Membership Type'=$MembershipType;'Description'=$Description;'Total Members Count'=$ChannelMemberCount;'Owners Count'=$ChannelOwnerCount}
        $Results= New-Object psobject -Property $Result
        $Results | select 'Teams Name','Channel Name','Membership Type','Description','Owners Count','Total Members Count' | Export-Csv $Path -NoTypeInformation -Append
       }
      }
      Write-Progress -Activity "`n     Processed Teams count: $Count "`n"  Currently Processing: $TeamName  `n Currently Processing Channel: $ChannelName"  -Completed
      if((Test-Path -Path $Path) -eq "True") 
      {
       Write-Host `nReport available in $Path -ForegroundColor Green
      }
     }  

   7 {
      $TeamName=Read-Host Enter Teams name "(Case Sensitive)"
      Write-Host Exporting Channels report...
      $Count=0
      $GroupId=(Get-Team -DisplayName $TeamName).GroupId
      $Path=".\Channels available in $TeamName team $((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
      Get-TeamChannel -GroupId $GroupId | Foreach {
       $ChannelName=$_.DisplayName
       Write-Progress -Activity "`n     Processed channel count: $Count "`n"  Currently Processing Channel: $ChannelName"
       $Count++
       $MembershipType=$_.MembershipType
       $Description=$_.Description
       $ChannelUser=Get-TeamChannelUser -GroupId $GroupId -DisplayName $ChannelName
       $ChannelMemberCount=$ChannelUser.Count
       $ChannelOwnerCount=($ChannelUser | ?{$_.role -eq "Owner"}).count
       $Result=@{'Teams Name'=$TeamName;'Channel Name'=$ChannelName;'Membership Type'=$MembershipType;'Description'=$Description;'Total Members Count'=$ChannelMemberCount;'Owners Count'=$ChannelOwnerCount}
       $Results= New-Object psobject -Property $Result
       $Results | select 'Teams Name','Channel Name','Membership Type','Description','Owners Count','Total Members Count' | Export-Csv $Path -NoTypeInformation -Append
      }
      Write-Progress -Activity "`n     Processed channel count: $Count "`n"  Currently Processing Channel: $ChannelName" -Completed
      if((Test-Path -Path $Path) -eq "True") 
      {
       Write-Host `nReport available in $Path -ForegroundColor Green
      }
     }  
    
   8 {
      $Result=""  
      $Results=@() 
      $TeamName=Read-Host Enter Teams name in which Channel resides "(Case sensitive)"
      $ChannelName=Read-Host Enter Channel name
      $GroupId=(Get-Team -DisplayName $TeamName).GroupId 
      Write-Host Exporting $ChannelName"'s" Members and Owners report...
      $Path=".\MembersOf $ChannelName channel report $((Get-Date -format yyyy-MMM-dd-ddd` hh-mm` tt).ToString()).csv"
      Get-TeamChannelUser -GroupId $GroupId -DisplayName $ChannelName | foreach {
       $Name=$_.Name
       $UPN=$_.User
       $Role=$_.Role
       $Result=@{'Teams Name'=$TeamName;'Channel Name'=$ChannelName;'Member Mail'=$UPN;'Member Name'=$Name;'Role'=$Role}
       $Results= New-Object psobject -Property $Result
       $Results | select 'Teams Name','Channel Name','Member Name','Member Mail',Role | Export-Csv $Path -NoTypeInformation -Append
      }   
      if((Test-Path -Path $Path) -eq "True") 
      {
       Write-Host `nReport available in $Path -ForegroundColor Green
      }
     }

   }
   if($Action -ne "")
   {exit}
}
  While ($i -ne 0)
  Clear-Host