#!/usr/bin/env pwsh
# https://docs.sheetjs.com/docs/demos/engines/mujs

$ErrorActionPreference = "Stop"
$ARCH = $env:PROCESSOR_ARCHITECTURE

switch ($ARCH) {
  "AMD64" { $batFile = "vcvars64.bat" }
  "ARM64" { $batFile = "vcvarsarm64.bat" }
  default { Write-Error "Unsupported architecture: $ARCH"; exit 1 }
}

$oldDir = Get-Location
$tempDir = Join-Path -Path $env:TEMP -ChildPath "sheetjs-mujs"
if (Test-Path -Path $tempDir) { Remove-Item -Path $tempDir -Recurse -Force }
New-Item -ItemType Directory -Path $tempDir | Out-Null
Set-Location -Path $tempDir

# NOTE: This effectuates "Native Tools Command Prompt" for CMake/MSVC
$vsVersions = @("2022", "2019", "18")
$vsEditions = @("Community", "Professional", "Enterprise", "BuildTools")

foreach ($vsVersion in $vsVersions) {
  foreach ($vsEdition in $vsEditions) {
    $vcbasePath = "${env:ProgramFiles}\Microsoft Visual Studio\$vsVersion\$vsEdition"
    $vcvarsPath = Join-Path $vcbasePath "VC\Auxiliary\Build\$batFile"
    if (Test-Path -Path $vcvarsPath) { break }
  }
  if (Test-Path -Path $vcvarsPath) { break }
}

Push-Location "$vcbasePath"
cmd.exe /c "`"$vcvarsPath`" && set" | ForEach-Object { if ($_ -match '^([^=]+)=(.*)$') {
  $name = $matches[1]
  $value = $matches[2]

  if ($name -ne 'PATH') {
    Set-Item -Path "Env:$name" -Value $value
  } else {
    $env:PATH = "$value;$env:PATH"
  }
} }
Pop-Location

# Download and extract MuJS
Invoke-WebRequest -Uri "https://mujs.com/downloads/mujs-1.3.8.zip" -OutFile "mujs-1.3.8.zip"
Expand-Archive -Path "mujs-1.3.8.zip" -DestinationPath "." -Force
Remove-Item "mujs-1.3.8.zip"

# Build MuJS library
Push-Location (Get-ChildItem -Directory -Filter "mujs-*" | Select-Object -First 1).FullName
cl /O2 /W3 /I. /c one.c /Fo:mujs.obj
lib /OUT:libmujs.lib mujs.obj
Copy-Item libmujs.lib, mujs.h -Destination $tempDir
Pop-Location

# Download SheetJSMu.c
Invoke-WebRequest -Uri "https://docs.sheetjs.com/mujs/SheetJSMu.c" -OutFile "SheetJSMu.c"

# Build SheetJSMu application
cl /O2 /W3 /Fe:SheetJSMu.exe SheetJSMu.c libmujs.lib

# Download SheetJS scripts and test file
Invoke-WebRequest -Uri "https://cdn.sheetjs.com/xlsx-latest/package/dist/shim.min.js" -OutFile "shim.min.js"
Invoke-WebRequest -Uri "https://cdn.sheetjs.com/xlsx-latest/package/dist/xlsx.full.min.js" -OutFile "xlsx.full.min.js"
Invoke-WebRequest -Uri "https://sheetjs.com/pres.xlsb" -OutFile "pres.xlsb"

# Run the application
.\SheetJSMu.exe pres.xlsb
if ($LASTEXITCODE -ne 0) { throw "Execution failed" }

# Wait for process to fully exit and file handles to release
Start-Sleep -Milliseconds 1000

Set-Location $oldDir
Remove-Item -Path $tempDir -Recurse -Force