# Builds the firmware simulation DLL and runs the headless smoke test.
# Windows PowerShell 5.1 compatible. From the 2026-current folder:
#
#   .\sim\build.ps1             configure (first time) + build + smoke test
#   .\sim\build.ps1 -NoTest     build only
#   .\sim\build.ps1 -Clean      wipe sim\build first
#
# Output: sim\build\hexapod_sim.dll (loaded by the Unity project) and
# sim\build\sim_smoke.exe. Exit code = build failure (1) or failed checks.
param(
    [switch]$NoTest,
    [switch]$Clean
)
$ErrorActionPreference = 'Stop'

$simDir = $PSScriptRoot
$buildDir = Join-Path $simDir 'build'

# g++/cmake/ninja: use what's on PATH, else Strawberry Perl's bundled toolchain.
if (-not (Get-Command cmake -ErrorAction SilentlyContinue) -or -not (Get-Command g++ -ErrorAction SilentlyContinue)) {
    $strawberry = 'C:\Strawberry\c\bin'
    if (Test-Path $strawberry) {
        $env:PATH = "$strawberry;$env:PATH"
    } else {
        Write-Error 'cmake and g++ not found. Install Strawberry Perl (bundles g++, cmake, ninja) or add a MinGW-w64 toolchain to PATH.'
    }
}

if ($Clean -and (Test-Path $buildDir)) { Remove-Item $buildDir -Recurse -Force }

if (-not (Test-Path (Join-Path $buildDir 'build.ninja'))) {
    cmake -S $simDir -B $buildDir -G Ninja -DCMAKE_BUILD_TYPE=Release
    if ($LASTEXITCODE -ne 0) { exit 1 }
}

cmake --build $buildDir
if ($LASTEXITCODE -ne 0) { exit 1 }

if (-not $NoTest) {
    & (Join-Path $buildDir 'sim_smoke.exe')
    exit $LASTEXITCODE
}