#Requires -Version 5.0

<#
.SYNOPSIS
Downloads and runs the DSA manifest collector.
.DESCRIPTION
Tools.ps1 must be dot-sourced by the caller first. Set $DSAManifestSource
in the caller's scope before using Run-Script -LivePSScript Get-DSAManifest.
The output path is generated in $Global:OutputDirectory with the filename
dsa-manifest-yyyyMMddHHmmss.csv, using the current local date and time.
Set the boolean $Zip to $true to include --zip; otherwise it is omitted.
#>

If ( [string]::IsNullOrWhiteSpace([string]$DSAManifestSource) ) {
    Throw 'Set $DSAManifestSource in the caller before running Get-DSAManifest.'
}

$DSAManifestOutput = Join-Path -Path $Global:OutputDirectory -ChildPath (
    'dsa-manifest-{0}.csv' -f (Get-Date -Format 'yyyyMMddHHmmss')
)
New-Item -Path $Global:OutputDirectory -ItemType Directory -Force -ErrorAction Stop | Out-Null

# Select the executable for the OS, even when the RMM uses 32-bit PowerShell.
If ( [Environment]::Is64BitOperatingSystem ) {
    $DsaDownloadUrl = 'https://xfer.emberkom.com/shares/tools/folders/9b9988fb-c53a-4833-a4ad-68d01a3021bb/files/dsa-collect-windows-amd64-exe/download/dsa-collect-windows-amd64.exe'
}
Else {
    $DsaDownloadUrl = 'https://xfer.emberkom.com/shares/tools/folders/9b9988fb-c53a-4833-a4ad-68d01a3021bb/files/dsa-collect-windows-386-exe/download/dsa-collect-windows-386.exe'
}

$DsaExecutablePath = Join-Path -Path $Global:ToolsDirectory -ChildPath 'dsa-collect.exe'
New-Item -Path $Global:ToolsDirectory -ItemType Directory -Force -ErrorAction Stop | Out-Null

Write-Output "Downloading dsa-collect.exe to ${DsaExecutablePath}"
$DsaDownloadedFile = Download-File -URL $DsaDownloadUrl -File $DsaExecutablePath -ErrorAction Stop

# Download-File can return nothing on failure. Do not run a stale executable.
If ( [string]::IsNullOrWhiteSpace([string]$DsaDownloadedFile) -or
     !(Test-Path -LiteralPath $DsaExecutablePath -PathType Leaf) ) {
    Throw "Failed to download dsa-collect.exe to ${DsaExecutablePath}"
}

$DsaArguments = @('--source', [string]$DSAManifestSource, '--output', [string]$DSAManifestOutput)
If ( $Zip -eq $true ) {
    $DsaArguments += '--zip'
}

# Quote native arguments explicitly, including paths ending in a backslash.
# Start-Process joins its argument list without adding the required quoting.
$DsaCommandLine = ($DsaArguments | ForEach-Object {
    '"{0}"' -f ($_ -replace '(\\*)"', '$1$1\"' -replace '(\\+)$', '$1$1')
}) -join ' '

Write-Output 'Running dsa-collect.exe'
$DsaProcess = Start-Process -FilePath $DsaExecutablePath -ArgumentList $DsaCommandLine `
    -Wait -PassThru -WindowStyle Hidden -ErrorAction Stop
If ( $DsaProcess.ExitCode -ne 0 ) {
    Throw "dsa-collect.exe failed with exit code $($DsaProcess.ExitCode)"
}