$ErrorActionPreference = 'Stop'

$appZipUrl = 'https://pm.tlcommunications.com.my/TechnicianUsbLoaderApp.zip'
$installRoot = Join-Path $env:LOCALAPPDATA 'TechnicianUsbLoaderApp'
$zipPath = Join-Path $env:TEMP 'TechnicianUsbLoaderApp.zip'

if (Test-Path $installRoot) {
    Remove-Item -LiteralPath $installRoot -Recurse -Force -ErrorAction SilentlyContinue
}

Write-Host 'Downloading Technician USB Tool Loader...' -ForegroundColor Cyan
Invoke-WebRequest -Uri $appZipUrl -OutFile $zipPath

Write-Host 'Extracting application...' -ForegroundColor Cyan
New-Item -ItemType Directory -Force -Path $installRoot | Out-Null
Expand-Archive -LiteralPath $zipPath -DestinationPath $installRoot -Force

$exePath = Join-Path $installRoot 'TechnicianUsbLoader.App.exe'
if (-not (Test-Path $exePath)) {
    throw 'TechnicianUsbLoader.App.exe was not found after extraction.'
}

Write-Host 'Launching Technician USB Tool Loader...' -ForegroundColor Green
Start-Process -FilePath $exePath