Private/Find-Prerequisites.ps1
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#Requires -Version 5.1 <# .SYNOPSIS Multi-level prerequisite detection functions for installer .DESCRIPTION Detect Python, ffmpeg, VoiceMeeter, and BeyondATC using progressive detection: 1. PATH environment variable (fastest) 2. Registry (for old installations) 3. Common filesystem paths (fallback) Returns hashtable with Found, Path, Version, Method #> function Find-Python { [OutputType([hashtable])] param() # Level 1: Check PATH (fastest) try { $pythonExe = (Get-Command python.exe -ErrorAction Stop).Source $version = & $pythonExe --version 2>&1 return @{ Found = $true Path = $pythonExe Version = $version Method = "PATH" } } catch {} # Level 2: Check Registry (Python.org installations) try { $pythonReg = Get-ChildItem "HKCU:\Software\Python\PythonCore" -ErrorAction Stop | Get-ItemProperty -ErrorAction SilentlyContinue | Where-Object {$_.InstallPath} | Select-Object -First 1 if ($pythonReg -and (Test-Path "$($pythonReg.InstallPath)python.exe")) { return @{ Found = $true Path = "$($pythonReg.InstallPath)python.exe" Version = "Unknown (Registry)" Method = "Registry" } } } catch {} # Level 3: Check Common Filesystem Paths $commonPaths = @( "C:\Program Files\Python*\python.exe", "C:\Program Files (x86)\Python*\python.exe", "$env:USERPROFILE\AppData\Local\Programs\Python\Python*\python.exe", "$env:USERPROFILE\AppData\Local\Microsoft\WindowsApps\python.exe" ) foreach ($pattern in $commonPaths) { $found = Get-Item -Path $pattern -ErrorAction SilentlyContinue | Select-Object -First 1 if ($found) { return @{ Found = $true Path = $found.FullName Version = "Unknown (FileSystem)" Method = "FileSystem" } } } # Not found return @{ Found = $false Path = $null Version = $null Method = $null } } function Find-FFmpeg { [OutputType([hashtable])] param() # Level 1: Check PATH try { $ffmpegExe = (Get-Command ffmpeg.exe -ErrorAction Stop).Source $version = & $ffmpegExe -version 2>&1 | Select-Object -First 1 return @{ Found = $true Path = $ffmpegExe Version = $version Method = "PATH" } } catch {} # Level 2: Check Registry (Gyan.FFmpeg or similar winget installations) try { $ffmpegReg = Get-ChildItem "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall" -ErrorAction Stop | Get-ItemProperty -ErrorAction SilentlyContinue | Where-Object {$_.DisplayName -match "FFmpeg"} | Select-Object -First 1 if ($ffmpegReg -and $ffmpegReg.InstallLocation) { $ffmpegExe = Join-Path $ffmpegReg.InstallLocation "bin\ffmpeg.exe" if (Test-Path $ffmpegExe) { return @{ Found = $true Path = $ffmpegExe Version = $ffmpegReg.DisplayVersion Method = "Registry" } } } } catch {} # Level 3: Common Paths $commonPaths = @( "C:\Program Files\FFmpeg\bin\ffmpeg.exe", "C:\Program Files (x86)\FFmpeg\bin\ffmpeg.exe", "$env:USERPROFILE\AppData\Local\Programs\FFmpeg\bin\ffmpeg.exe", "C:\ffmpeg\bin\ffmpeg.exe" ) foreach ($path in $commonPaths) { if (Test-Path $path) { return @{ Found = $true Path = $path Version = "Unknown (FileSystem)" Method = "FileSystem" } } } return @{ Found = $false Path = $null Version = $null Method = $null } } function Find-VoiceMeeter { [OutputType([hashtable])] param() # Level 1: Registry - Search for any VoiceMeeter installation (flexible GUID matching) try { $vmReg = Get-ChildItem "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall" -ErrorAction Stop | Get-ItemProperty -ErrorAction SilentlyContinue | Where-Object {$_.DisplayName -match "Voicemeeter"} | Select-Object -First 1 if ($vmReg -and $vmReg.InstallLocation -and (Test-Path $vmReg.InstallLocation)) { return @{ Found = $true Path = $vmReg.InstallLocation Version = $vmReg.DisplayVersion Method = "Registry" } } } catch {} # Level 2: Check common filesystem paths (including variations) $commonPaths = @( "C:\Program Files\VB-Audio\Voicemeeter", "C:\Program Files (x86)\VB-Audio\Voicemeeter", "C:\Program Files\VB\Voicemeeter", "C:\Program Files (x86)\VB\Voicemeeter", "$env:PROGRAMFILES\VB-Audio\Voicemeeter", "$env:PROGRAMFILES(x86)\VB-Audio\Voicemeeter" ) foreach ($path in $commonPaths) { if (Test-Path $path) { return @{ Found = $true Path = $path Version = "Unknown (FileSystem)" Method = "FileSystem" } } } return @{ Found = $false Path = $null Version = $null Method = $null } } function Find-BeyondATC { [OutputType([hashtable])] param() # Level 1: Registry (most common installation method) try { $btcReg = Get-ChildItem "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall" -ErrorAction Stop | Get-ItemProperty -ErrorAction SilentlyContinue | Where-Object {$_.DisplayName -match "BeyondATC"} | Select-Object -First 1 if ($btcReg -and $btcReg.InstallLocation) { return @{ Found = $true Path = $btcReg.InstallLocation Version = $btcReg.DisplayVersion Method = "Registry" } } } catch {} # Level 2: Check common filesystem paths $commonPaths = @( "C:\Program Files\BeyondATC", "C:\Program Files (x86)\BeyondATC", "$env:USERPROFILE\AppData\Local\Programs\BeyondATC", "$env:LOCALAPPDATA\BeyondATC" ) foreach ($path in $commonPaths) { if (Test-Path $path) { return @{ Found = $true Path = $path Version = "Unknown (FileSystem)" Method = "FileSystem" } } } return @{ Found = $false Path = $null Version = $null Method = $null } } Export-ModuleMember -Function @( 'Find-Python', 'Find-FFmpeg', 'Find-VoiceMeeter', 'Find-BeyondATC' ) |