#Common shared functions for mods handling

function Invoke-ModsApp ($Run, $RunSwitch, $RunWait, $User) {
    if (Test-Path "$Run") {
	    if (!$RunSwitch) {$RunSwitch = " "}
	    if (!$User) {
	      if (!$RunWait) {
	      	Start-Process $Run -ArgumentList $RunSwitch
	      }
	      else {
	      	Start-Process $Run -ArgumentList $RunSwitch -Wait
	      }
	    }
	    else {
	    	Start-Process explorer $Run
	    }
    }
    Return
}


function Stop-ModsProc ($Proc) {
    foreach ($process in $Proc)
    {
        Stop-Process -Name $process -Force -ErrorAction SilentlyContinue | Out-Null
    }
    Return
}

function Wait-ModsProc ($Wait) {
    foreach ($process in $Wait)
    {
        Get-Process $process -ErrorAction SilentlyContinue | Foreach-Object { $_.WaitForExit() }
    }
    Return
}

function Uninstall-ModsApp ($App) {
    foreach ($app in $App)
    {
        $InstalledSoftware = Get-ChildItem "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall"
        foreach ($obj in $InstalledSoftware){
            if ($obj.GetValue('DisplayName') -like $App) {
                $UninstallString = $obj.GetValue('UninstallString')
                $CleanedUninstallString = $UninstallString.Trim([char]0x0022)
                if ($UninstallString -like "MsiExec.exe*") {
                    $ProductCode = Select-String "{.*}" -inputobject $UninstallString
                    $ProductCode = $ProductCode.matches.groups[0].value
                    #MSI x64 Installer
                    $Exec = Start-Process "C:\Windows\System32\msiexec.exe" -ArgumentList "/x$ProductCode REBOOT=R /qn" -PassThru -Wait
                    #Stop Hard Reboot (if bad MSI!)
                    if ($Exec.ExitCode -eq 1641) {
                        Start-Process "C:\Windows\System32\shutdown.exe" -ArgumentList "/a"
                    }
                }
                else {
                    $QuietUninstallString = $obj.GetValue('QuietUninstallString')
                    if ($QuietUninstallString) {
                        $QuietUninstallString = Select-String "(\x22.*\x22) +(.*)" -inputobject $QuietUninstallString
                        $Command = $QuietUninstallString.matches.groups[1].value
                        $Parameter = $QuietUninstallString.matches.groups[2].value
                        #All EXE x64 Installers (already defined silent uninstall)
                        Start-Process $Command -ArgumentList $Parameter -Wait
                    }
                    else {
                        if ((Test-Path $CleanedUninstallString)) {
                            $NullSoft = Select-String -Path $CleanedUninstallString -Pattern "Nullsoft"
                        }
                        if ($NullSoft) {
                            #NSIS x64 Installer
                            Start-Process $UninstallString -ArgumentList "/S" -Wait
                        }
                        else {
                            if ((Test-Path $CleanedUninstallString)) {
                                $Inno = Select-String -Path $CleanedUninstallString -Pattern "Inno Setup"
                            }
                            if ($Inno) {
                                #Inno x64 Installer
                                Start-Process $UninstallString -ArgumentList "/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-" -Wait
                            }
                            else {
                                Write-Host "x64 Uninstaller unknown, trying the UninstallString from registry..."
                                $NativeUninstallString = Select-String "(\x22.*\x22) +(.*)" -inputobject $UninstallString
                                $Command = $NativeUninstallString.matches.groups[1].value
                                $Parameter = $NativeUninstallString.matches.groups[2].value
                                #All EXE x64 Installers (native defined uninstall)
                                Start-Process $Command -ArgumentList $Parameter -Wait
                            }
                        }
                    }
                }
                $x64 = $true
                break
            }
        }
        if (!$x64) {
            $InstalledSoftware = Get-ChildItem "HKLM:\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"
            foreach ($obj in $InstalledSoftware){
                if ($obj.GetValue('DisplayName') -like $App) {
                    $UninstallString = $obj.GetValue('UninstallString')
                    $CleanedUninstallString = $UninstallString.Trim([char]0x0022)
                    if ($UninstallString -like "MsiExec.exe*") {
                        $ProductCode = Select-String "{.*}" -inputobject $UninstallString
                        $ProductCode = $ProductCode.matches.groups[0].value
                        #MSI x86 Installer
                        $Exec = Start-Process "C:\Windows\System32\msiexec.exe" -ArgumentList "/x$ProductCode REBOOT=R /qn" -PassThru -Wait
                        #Stop Hard Reboot (if bad MSI!)
                        if ($Exec.ExitCode -eq 1641) {
                            Start-Process "C:\Windows\System32\shutdown.exe" -ArgumentList "/a"
                        }
                    }
                    else {
                        $QuietUninstallString = $obj.GetValue('QuietUninstallString')
                        if ($QuietUninstallString) {
                            $QuietUninstallString = Select-String "(\x22.*\x22) +(.*)" -inputobject $QuietUninstallString
                            $Command = $QuietUninstallString.matches.groups[1].value
                            $Parameter = $QuietUninstallString.matches.groups[2].value
                            #All EXE x86 Installers (already defined silent uninstall)
                            Start-Process $Command -ArgumentList $Parameter -Wait
                        }
                        else {
                            if ((Test-Path $CleanedUninstallString)) {
                                $NullSoft = Select-String -Path $CleanedUninstallString -Pattern "Nullsoft"
                            }
                            if ($NullSoft) {
                                #NSIS x86 Installer
                                Start-Process $UninstallString -ArgumentList "/S" -Wait
                            }
                            else {
                                if ((Test-Path $CleanedUninstallString)) {
                                    $Inno = Select-String -Path $CleanedUninstallString -Pattern "Inno Setup"
                                }
                                if ($Inno) {
                                    #Inno x86 Installer
                                    Start-Process $UninstallString -ArgumentList "/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-" -Wait
                                }
                                else {
                                    Write-Host "x86 Uninstaller unknown, trying the UninstallString from registry..."
                                    $NativeUninstallString = Select-String "(\x22.*\x22) +(.*)" -inputobject $UninstallString
                                    $Command = $NativeUninstallString.matches.groups[1].value
                                    $Parameter = $NativeUninstallString.matches.groups[2].value
                                    #All EXE x86 Installers (native defined uninstall)
                                    Start-Process $Command -ArgumentList $Parameter -Wait
                                }
                            }
                        }
                    }
                    break
                }
            }
        }
    }
    Return
}

function Remove-ModsLnk ($Lnk) {
    foreach ($link in $Lnk)
    {
        Remove-Item -Path "${env:Public}\Desktop\$link.lnk" -Force -ErrorAction SilentlyContinue | Out-Null
    }
    Return
}

function Add-ModsReg ($AddKey, $AddValue, $AddTypeData, $AddType) {
    if (!Test-Path "$AddKey") {
        New-Item $AddKey -Force -ErrorAction SilentlyContinue | Out-Null
    }
    New-ItemProperty $AddKey -Name $AddValue -Value $AddTypeData -PropertyType $AddType -Force | Out-Null
    Return
}

function Remove-ModsReg ($DelKey, $DelValue) {
    if (Test-Path "$DelKey") {
        if (!$DelValue) {
            Remove-Item $DelKey -Recurse -Force -ErrorAction SilentlyContinue | Out-Null
        }
        else {
            Remove-ItemProperty $DelKey -Name $DelValue -Force -ErrorAction SilentlyContinue | Out-Null
        }
    }
    Return
}

function Remove-ModsFile ($DelFile) {
    foreach ($file in $DelFile)
    {
        if (Test-Path "$file") {
            Remove-Item -Path $file -Force -Recurse -ErrorAction SilentlyContinue | Out-Null
        }
    }
    Return
}

function Copy-ModsFile ($CopyFile, $CopyTo) {
    if (Test-Path "$CopyFile") {
        Copy-Item -Path $CopyFile -Destination $CopyTo -Recurse -Force -ErrorAction SilentlyContinue | Out-Null
    }
    Return
}

function Edit-ModsFile ($File, $FindText, $ReplaceText) {
    if (Test-Path "$File") {
        ((Get-Content -path $File -Raw) -replace "$FindText","$ReplaceText") | Set-Content -Path $File -Force -ErrorAction SilentlyContinue | Out-Null
    }
    Return
}

function Grant-ModsPath ($GrantPath) {
    foreach ($path in $GrantPath)
    {
        if (Test-Path "$path") {
            $NewAcl = Get-Acl -Path $path
            $identity = New-Object System.Security.Principal.SecurityIdentifier S-1-5-11
            if ((Get-Item $path) -is [System.IO.DirectoryInfo]) {
                $fileSystemAccessRuleArgumentList = $identity, 'Modify', 'ContainerInherit, ObjectInherit', 'InheritOnly', 'Allow'
            }
            else {
                $fileSystemAccessRuleArgumentList = $identity, 'Modify', 'Allow'
            }
            $fileSystemAccessRule = New-Object -TypeName System.Security.AccessControl.FileSystemAccessRule -ArgumentList $fileSystemAccessRuleArgumentList
            $NewAcl.SetAccessRule($fileSystemAccessRule)
            Set-Acl -Path $path -AclObject $NewAcl
        }
    }
    Return
}