# ------------------------------------------------------------
# Restore Leica LAS X settings to new Windows profiles
# ------------------------------------------------------------
# This script uses /COPY:DAT and not /COPYALL so that rights on the files are not copied.

$CsvFile = "C:\Temp\Users.csv"
$SourceRoot = "E:\OldUsers"
$DestinationRoot = "C:\Users"
$LogFile = "C:\Temp\RestoreLeicaSettings.log"

Start-Transcript -Path $LogFile

if (-not (Test-Path $CsvFile)) {
    Write-Host "ERROR: CSV file not found: $CsvFile"
    Stop-Transcript
    exit
}

$Copied = 0
$MissingSource = 0
$MissingUser = 0
$Errors = 0

foreach ($Entry in Import-Csv $CsvFile) {

    $UserName = $Entry.Name

    $Source = Join-Path $SourceRoot "$UserName\AppData\Roaming\Leica Microsystems\LAS X"
    $Destination = Join-Path $DestinationRoot "$UserName\AppData\Roaming\Leica Microsystems\LAS X"

    Write-Host ""
    Write-Host "----------------------------------------"
    Write-Host "Processing user: $UserName"

    # Check if Windows user exists
    if (-not (Get-LocalUser -Name $UserName -ErrorAction SilentlyContinue)) {

        Write-Host "User does not exist on this computer - skipped."
        $MissingUser++
        continue
    }

    # Check if Leica backup exists
    if (-not (Test-Path $Source)) {

        Write-Host "No Leica backup found for this user."
        $MissingSource++
        continue
    }

    try {

        Write-Host "Restoring Leica settings..."

        # Create target folder structure
        New-Item -ItemType Directory -Force -Path $Destination | Out-Null

        robocopy `
            $Source `
            $Destination `
            /MIR `
            /COPY:DAT `
            /DCOPY:DAT `
            /R:1 `
            /W:1

        $RC = $LASTEXITCODE

        if ($RC -lt 8) {
            Write-Host "Restore successful."
            $Copied++
        }
        else {
            Write-Host "ERROR: Robocopy failed (ExitCode=$RC)"
            $Errors++
        }

    }
    catch {

        Write-Host "ERROR: $($_.Exception.Message)"
        $Errors++
    }
}

Write-Host ""
Write-Host "========================================"
Write-Host "Restore summary"
Write-Host "========================================"
Write-Host "Restored        : $Copied"
Write-Host "No backup found : $MissingSource"
Write-Host "User missing    : $MissingUser"
Write-Host "Errors          : $Errors"
Write-Host "========================================"

Stop-Transcript