param(
    [string]$PythonHome = $env:EDGE_PYTHON_HOME
)

$ErrorActionPreference = "Stop"

if (-not $PythonHome) {
    throw "Python runtime directory is required. Pass -PythonHome or set EDGE_PYTHON_HOME."
}

$resolvedPythonHome = (Resolve-Path -LiteralPath $PythonHome).Path
$root = Split-Path -Parent $PSScriptRoot
$dist = Join-Path $root "dist"
$timestamp = Get-Date -Format "yyyyMMdd-HHmmss"
$packageRoot = Join-Path $dist "edge-agent-linux-$timestamp"
$runtimeRoot = Join-Path $packageRoot "runtime\python"
$archivePath = Join-Path $dist "edge-agent-linux-$timestamp.tar.gz"

New-Item -ItemType Directory -Path $packageRoot -Force | Out-Null
New-Item -ItemType Directory -Path $runtimeRoot -Force | Out-Null
New-Item -ItemType Directory -Path $dist -Force | Out-Null

Copy-Item -LiteralPath (Join-Path $root "app") -Destination $packageRoot -Recurse
Copy-Item -LiteralPath (Join-Path $root "README.md") -Destination $packageRoot
Copy-Item -LiteralPath (Join-Path $root "pyproject.toml") -Destination $packageRoot
Copy-Item -LiteralPath (Join-Path $PSScriptRoot "start-linux.sh") -Destination (Join-Path $packageRoot "start.sh")
Get-ChildItem -LiteralPath $resolvedPythonHome -Force | Copy-Item -Destination $runtimeRoot -Recurse

tar -czf $archivePath -C $packageRoot .
Write-Output $archivePath