<#
      .SYNOPSIS
      Microsoft Teams Client customization settings via PowerShell

      .DESCRIPTION
      Microsoft Teams Client customization settings via PowerShell

      .EXAMPLE
      PS C:\> .\Default_MicrosoftTeams_DesktopConfig.ps1

      .EXAMPLE
      PS C:\> .\Default_MicrosoftTeams_DesktopConfig.ps1 -verbose

      .NOTES
      Refactored and extended version of Desktop-Config-Json.ps1 by eshlomo1

      .LINK
      https://github.com/eshlomo1/MS_Teams/blob/master/Desktop-Config-Json.ps1

      .LINK
      https://www.eshlomo.us/microsoft-teams-client-personalization-with-powershell/
#>
[CmdletBinding(ConfirmImpact = 'None')]
param ()

begin
{
   #region DefaultSettings
   $AppPrefSetOpenAsHidden = $false
   $AppPrefSetOpenAtLogin = $false
   $AppPrefSetRegisterAsIMProvider = $true
   $AppPrefSetRunningOnClose = $false
   $NotificationWindowOnClose = $true
   $OverrideOpenAsHiddenProperty = $true
   $IsAppFirstRun = $false
   $CurrentWebLanguage = 'en-us'
   #endregion DefaultSettings

   #region Cleanup
   $ChangedConfig = $null
   $SourceConfigFile = $null
   $Teams = $null
   #endregion Cleanup

   #region SetConfigPath
   if (($PSVersionTable.PSEdition -eq 'Core') + ($PSVersionTable.Platform -eq 'Unix') -and ($PSVersionTable.OS -like 'Darwin*'))
   {
      # OK, macOS is supported
      $SourceConfigFile = ($Env:HOME + '/Library/Application Support/Microsoft/Teams/desktop-config.json')
   }
   elseif (($PSVersionTable.PSEdition -eq 'Core') + ($PSVersionTable.Platform -eq 'Unix') -and ($PSVersionTable.OS -like 'Linux*'))
   {
      # Sorry, Linux is not supported...
      $paramWriteError = @{
         Message     = 'Sorry, Linux is not supported...'
         Exception   = 'Sorry, Linux is not supported!'
         Category    = 'NotImplemented'
         ErrorAction = 'Stop'
      }
      Write-Error @paramWriteError

      exit 1
   }
   else
   {
      # Windows? Really??? OK, sure this is supported
      $SourceConfigFile = ($env:userprofile + '\AppData\Roaming\Microsoft\Teams\desktop-config.json')
   }
   #endregion SetConfigPath
}

process
{
   if (Test-Path -Path $SourceConfigFile -ErrorAction SilentlyContinue -WarningAction Continue)
   {
      #region GetConfig
      try
      {
         # Splat the parameters
         $paramGetContent = @{
            Path          = $SourceConfigFile
            Force         = $true
            ErrorAction   = 'Stop'
            WarningAction = 'Continue'
         }
         $Teams = (Get-Content @paramGetContent | ConvertFrom-Json -ErrorAction Stop)

         # Cleanup
         $paramGetContent = $null
      }
      catch
      {
         # get error record
         [Management.Automation.ErrorRecord]$e = $_

         # retrieve information about runtime error
         $info = [PSCustomObject]@{
            Exception = $e.Exception.Message
            Reason    = $e.CategoryInfo.Reason
            Target    = $e.CategoryInfo.TargetName
            Script    = $e.InvocationInfo.ScriptName
            Line      = $e.InvocationInfo.ScriptLineNumber
            Column    = $e.InvocationInfo.OffsetInLine
         }

         # output information. Post-process collected info, and log info (optional)
         $info | Out-String | Write-Verbose

         Write-Error -Message $e.Exception.Message -ErrorAction Stop -Exception $e.Exception -TargetObject $e.CategoryInfo.TargetName

         break
      }
      #endregion GetConfig

      #region
      if ($Teams.appPreferenceSettings)
      {
         if ($Teams.appPreferenceSettings.openAsHidden)
         {
            if ($Teams.appPreferenceSettings.openAsHidden -ne $AppPrefSetOpenAsHidden)
            {
               Write-Verbose -Message 'Value of openAsHidden will be changed to the desired default'

               $Teams.appPreferenceSettings.openAsHidden = $AppPrefSetOpenAsHidden

               # Set the change indicator
               $ChangedConfig = $true

               Write-Verbose -Message 'Value of openAsHidden was changed to the desired default'
            }
            else
            {
               Write-Verbose -Message 'Value of openAsHidden is unchanged'
            }
         }
         else
         {
            Write-Verbose -Message 'The Parameter openAsHidden will be created with the desired default value'

            # Splat the parameters
            $paramAddMember = @{
               MemberType = 'NoteProperty'
               Name       = 'openAsHidden'
               Value      = $AppPrefSetOpenAsHidden
            }
            $null = ($Teams.appPreferenceSettings | Add-Member @paramAddMember)

            # Cleanup
            $paramAddMember = $null

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'The Parameter openAsHidden was created with the desired default value'
         }

         if ($Teams.appPreferenceSettings.openAtLogin)
         {
            if ($Teams.appPreferenceSettings.openAtLogin -ne $AppPrefSetOpenAtLogin)
            {
               Write-Verbose -Message 'Value of openAtLogin will be changed to the desired default'

               $Teams.appPreferenceSettings.openAtLogin = $AppPrefSetOpenAtLogin

               # Set the change indicator
               $ChangedConfig = $true

               Write-Verbose -Message 'Value of openAtLogin was changed to the desired default'
            }
            else
            {
               Write-Verbose -Message 'Value of openAtLogin is unchanged'
            }
         }
         else
         {
            Write-Verbose -Message 'The Parameter openAtLogin will be created with the desired default value'

            # Splat the parameters
            $paramAddMember = @{
               MemberType = 'NoteProperty'
               Name       = 'openAtLogin'
               Value      = $AppPrefSetOpenAtLogin
            }
            $null = ($Teams.appPreferenceSettings | Add-Member @paramAddMember)

            # Cleanup
            $paramAddMember = $null

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'The Parameter openAtLogin was created with the desired default value'
         }

         if (($PSVersionTable.PSEdition -eq 'Core') + ($PSVersionTable.Platform -eq 'Unix') -and ($PSVersionTable.OS -like 'Darwin*') )
         {
            Write-Verbose -Message 'The setting registerAsIMProvider is not supported on macOS...'
         }
         else
         {
            if ($Teams.appPreferenceSettings.registerAsIMProvider)
            {
               if ($Teams.appPreferenceSettings.registerAsIMProvider -ne $AppPrefSetRegisterAsIMProvider)
               {
                  Write-Verbose -Message 'Value of registerAsIMProvider will be changed to the desired default'

                  $Teams.appPreferenceSettings.registerAsIMProvider = $AppPrefSetRegisterAsIMProvider

                  # Set the change indicator
                  $ChangedConfig = $true

                  Write-Verbose -Message 'Value of registerAsIMProvider was changed to the desired default'
               }
               else
               {
                  Write-Verbose -Message 'Value of registerAsIMProvider is unchanged'
               }
            }
            else
            {
               Write-Verbose -Message 'The Parameter registerAsIMProvider will be created with the desired default value'

               # Splat the parameters
               $paramAddMember = @{
                  MemberType = 'NoteProperty'
                  Name       = 'registerAsIMProvider'
                  Value      = $AppPrefSetRegisterAsIMProvider
               }
               $null = ($Teams.appPreferenceSettings | Add-Member @paramAddMember)

               # Cleanup
               $paramAddMember = $null

               # Set the change indicator
               $ChangedConfig = $true

               Write-Verbose -Message 'The Parameter registerAsIMProvider was created with the desired default value'
            }
         }

         if ($Teams.appPreferenceSettings.runningOnClose)
         {
            if ($Teams.appPreferenceSettings.runningOnClose -ne $AppPrefSetRunningOnClose)
            {
               Write-Verbose -Message 'Value of runningOnClose will be changed to the desired default'

               $Teams.appPreferenceSettings.runningOnClose = $AppPrefSetRunningOnClose

               # Set the change indicator
               $ChangedConfig = $true

               Write-Verbose -Message 'Value of runningOnClose was changed to the desired default'
            }
            else
            {
               Write-Verbose -Message 'Value of runningOnClose is unchanged'
            }
         }
         else
         {
            Write-Verbose -Message 'The Parameter runningOnClose will be created with the desired default value'

            # Splat the parameters
            $paramAddMember = @{
               MemberType = 'NoteProperty'
               Name       = 'runningOnClose'
               Value      = $AppPrefSetRunningOnClose
            }
            $null = ($Teams.appPreferenceSettings | Add-Member @paramAddMember)

            # Cleanup
            $paramAddMember = $null

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'The Parameter runningOnClose was created with the desired default value'
         }
      }

      if ($Teams.notificationWindowOnClose)
      {
         if ($Teams.notificationWindowOnClose -ne $NotificationWindowOnClose)
         {
            Write-Verbose -Message 'Value of notificationWindowOnClose will be changed to the desired default'

            $Teams.notificationWindowOnClose = $NotificationWindowOnClose

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'Value of notificationWindowOnClose was changed to the desired default'
         }
         else
         {
            Write-Verbose -Message 'Value of notificationWindowOnClose is unchanged'
         }
      }
      else
      {
         Write-Verbose -Message 'The Parameter currentWebLanguage will be created with the desired default value'

         # Splat the parameters
         $paramAddMember = @{
            MemberType = 'NoteProperty'
            Name       = 'notificationWindowOnClose'
            Value      = $NotificationWindowOnClose
         }
         $null = ($Teams | Add-Member @paramAddMember)

         # Cleanup
         $paramAddMember = $null

         # Set the change indicator
         $ChangedConfig = $true

         Write-Verbose -Message 'The Parameter currentWebLanguage was created with the desired default value'
      }

      if ($Teams.overrideOpenAsHiddenProperty)
      {
         if ($Teams.overrideOpenAsHiddenProperty -ne $OverrideOpenAsHiddenProperty)
         {
            Write-Verbose -Message 'Value of overrideOpenAsHiddenProperty will be changed to the desired default'

            $Teams.overrideOpenAsHiddenProperty = $OverrideOpenAsHiddenProperty

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'Value of overrideOpenAsHiddenProperty was changed to the desired default'
         }
         else
         {
            Write-Verbose -Message 'Value of overrideOpenAsHiddenProperty is unchanged'
         }
      }
      else
      {
         Write-Verbose -Message 'The Parameter overrideOpenAsHiddenProperty will be created with the desired default value'

         # Splat the parameters
         $paramAddMember = @{
            MemberType = 'NoteProperty'
            Name       = 'overrideOpenAsHiddenProperty'
            Value      = $OverrideOpenAsHiddenProperty
         }
         $null = ($Teams | Add-Member @paramAddMember)

         # Cleanup
         $paramAddMember = $null

         # Set the change indicator
         $ChangedConfig = $true

         Write-Verbose -Message 'The Parameter overrideOpenAsHiddenProperty was created with the desired default value'
      }

      if ($Teams.isAppFirstRun)
      {
         if ($Teams.isAppFirstRun -ne $IsAppFirstRun)
         {
            Write-Verbose -Message 'Value of isAppFirstRun will be changed to the desired default'

            $Teams.isAppFirstRun = $IsAppFirstRun

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'Value of isAppFirstRun was changed to the desired default'
         }
         else
         {
            Write-Verbose -Message 'Value of isAppFirstRun is unchanged'
         }
      }
      else
      {
         Write-Verbose -Message 'The Parameter isAppFirstRun will be created with the desired default value'

         # Splat the parameters
         $paramAddMember = @{
            MemberType = 'NoteProperty'
            Name       = 'isAppFirstRun'
            Value      = $false
         }
         $null = ($Teams | Add-Member @paramAddMember)

         # Cleanup
         $paramAddMember = $null

         # Set the change indicator
         $ChangedConfig = $true

         Write-Verbose -Message 'The Parameter isAppFirstRun was created with the desired default value'
      }

      if ($Teams.currentWebLanguage)
      {
         if ($Teams.currentWebLanguage -ne $CurrentWebLanguage)
         {
            Write-Verbose -Message 'Value of currentWebLanguage will be changed to the desired default'

            $Teams.currentWebLanguage = $CurrentWebLanguage

            # Set the change indicator
            $ChangedConfig = $true

            Write-Verbose -Message 'Value of currentWebLanguage was changed to the desired default'
         }
         else
         {
            Write-Verbose -Message 'Value of currentWebLanguage is unchanged'
         }
      }
      else
      {
         Write-Verbose -Message 'The Parameter currentWebLanguage will be created with the desired default value'

         # Splat the parameters
         $paramAddMember = @{
            MemberType = 'NoteProperty'
            Name       = 'currentWebLanguage'
            Value      = $CurrentWebLanguage
         }
         $null = ($Teams | Add-Member @paramAddMember)

         #Cleanup
         $paramAddMember = $null

         # Set the change indicator
         $ChangedConfig = $true

         Write-Verbose -Message 'The Parameter currentWebLanguage was created with the desired default value'
      }
      #endregion

      #region SaveNewConfig
      if ($ChangedConfig)
      {
         Write-Verbose -Message 'Changed configuration will be saved'

         try
         {
            # Splat the parameters
            $paramConvertToJson = @{
               Compress      = $true
               ErrorAction   = 'Stop'
               WarningAction = 'Continue'
            }

            $paramSetContent = @{
               Path          = $SourceConfigFile
               Force         = $true
               Confirm       = $false
               ErrorAction   = 'Stop'
               WarningAction = 'Continue'
            }

            $null = ($Teams | ConvertTo-Json @paramConvertToJson | Set-Content @paramSetContent)

            # Cleanup
            $paramConvertToJson = $null
            $paramSetContent = $null
            $Teams = $null
         }
         catch
         {
            # get error record
            [Management.Automation.ErrorRecord]$e = $_

            # retrieve information about runtime error
            $info = [PSCustomObject]@{
               Exception = $e.Exception.Message
               Reason    = $e.CategoryInfo.Reason
               Target    = $e.CategoryInfo.TargetName
               Script    = $e.InvocationInfo.ScriptName
               Line      = $e.InvocationInfo.ScriptLineNumber
               Column    = $e.InvocationInfo.OffsetInLine
            }

            # output information. Post-process collected info, and log info (optional)
            $info | Out-String | Write-Verbose

            Write-Error -Message $e.Exception.Message -ErrorAction Stop -Exception $e.Exception -TargetObject $e.CategoryInfo.TargetName

            break
         }

         Write-Verbose -Message 'Changed configuration was saved'
      }
      else
      {
         Write-Verbose -Message 'No changes made to the configuration'
      }
      #endregion SaveNewConfig
   }
   else
   {
      Write-Warning -Message 'No Configuration File for Microsoft Teams was found.'

      exit 1
   }
}

#region LICENSE
<#
   BSD 3-Clause License

   Copyright (c) 2021, enabling Technology
   All rights reserved.

   Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

   1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
   2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
   3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#>
#endregion LICENSE

#region DISCLAIMER
<#
   DISCLAIMER:
   - Use at your own risk, etc.
   - This is open-source software, if you find an issue try to fix it yourself. There is no support and/or warranty in any kind
   - This is a third-party Software
   - The developer of this Software is NOT sponsored by or affiliated with Microsoft Corp (MSFT) or any of its subsidiaries in any way
   - The Software is not supported by Microsoft Corp (MSFT)
   - By using the Software, you agree to the License, Terms, and any Conditions declared and described above
   - If you disagree with any of the terms, and any conditions declared: Just delete it and build your own solution
#>
#endregion DISCLAIMER