<#
Notepad++\setup.ps1

Uninstalls previous versions of Notepad++, and installs latest version.

Errata: 7.1: 
- Uninstall not silent, using Purge function instead of Uninstall function
- Plugin manager not available with x64 yet, sticking with x86

.\Notepad++\setup.ps1
.\Notepad++\setup\npp.7.1.Installer.x64.exe
.\Notepad++\setup\npp.7.1.Installer.x86.exe

Sailer, Adam
2016.10.18
#>


## Global Variables
$invoke = split-path -path $myinvocation.mycommand.path -parent
$os = gwmi Win32_OperatingSystem
$proc = gwmi Win32_Processor
$whatIf = $false


Function KillApps
{
    write-host "`n`n@@ Called KillApps" -fore Magenta

    $array = get-process | ? { $_.Path -imatch 'notepad\+\+' }
    $array; $array | stop-process -force

    dir $env:TEMP | remove-item -recurse -force -ea SilentlyContinue
}


Function Uninstall
{
    Param([string]$inp)

    write-host "`n`n@@ Called Uninstall" -fore Magenta
    	
    if (!$inp) { Return }

    $paths = @(
        'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall',
        'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall'
        ) | ? { test-path $_ }

    dir $paths | gp | ? { $_.DisplayName -imatch $inp } | % { $item = $_
    
        $item.UninstallString | ? { $_ } | % {

            $parent = (get-item $_).Directory
            $app = $_; $options = '/S'

            if ($_ -imatch 'msiexec') {
                $array = $_.Split(' {}')
                $app = $array[0]; $options = "/qn /x {$($array[2])} /norestart"
            }

            write-host "Uninstall : $($item.DisplayName) $($item.DisplayVersion)"
            write-host $options -fore DarkGray

            if (!$whatIf) {
                $process = start-process -FilePath $app -ArgumentList $options -Wait -Passthru                
                $process.ExitCode | ? { $_ -ne 0 } | % { write $_; exit $_ }
            }
        }
    }
}


Function Purge
{
    write-host "`n`n@@ Called Purge" -fore Magenta

    $paths = @(
        "$env:ProgramFiles\Notepad++"
        ,"${env:ProgramFiles(x86)}\Notepad++"
        ,"$env:AppData\Notepad++"
        ,"$env:ProgramData\Microsoft\Windows\Start Menu\Programs\Notepad++"
        ,"HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Notepad++"
        ,"HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Notepad++"        
        ) | ? { test-path $_ }

    $paths | remove-item -recurse -force -verbose -whatIf:$whatIf -ea SilentlyContinue
}


Function Setup
{
    write-host "`n`n@@ Called Setup" -fore Magenta

    $ident = 'x86'
    ## $ident = if ($proc.AddressWidth -eq 64) { 'x64' } else { 'x86' }

    dir $invoke\setup -recurse -include *.exe | ? { $_ -imatch $ident } | % {

        $options = '/S'

        write-host "Setup : $($_.Name)"
        write-host $options -fore DarkGray
		
        if (!$whatIf) {
            $env:SEE_MASK_NOZONECHECKS = 1
            $process = start-process -FilePath $_ -ArgumentList $options -Wait -Passthru
            
            remove-item env:\SEE_MASK_NOZONECHECKS
            $process.ExitCode
            $process.ExitCode | ? { $_ -ne 0 } | % { write $_; exit $_ }
        }
    }
}


Function Perms
{
    write-host "`n`n@@ Called Perms" -fore Magenta

    $paths = @(
        "$env:ProgramFiles\Notepad++",
        "${env:ProgramFiles(x86)}\Notepad++"
        ) | ? { test-path $_ }

    dir $paths | ? { $_ -imatch 'plugins' } | % { cacls $_.FullName /T /E /C /G Users:C }
}


#
#


Clear
KillApps
## Uninstall '^Notepad\+\+'
Purge
Setup
Perms