param(
    [Parameter(Mandatory = $true)]
    [string]$VideoRelativePath,
    [Parameter(Mandatory = $true)]
    [string]$OutputName
)

$ErrorActionPreference = 'Stop'
$q1Directory = $PSScriptRoot
$repositoryDirectory = Split-Path $q1Directory -Parent
$packageDirectory = Join-Path $q1Directory 'cache/openface/OpenFace_2.2.0_win_x64'
$executable = Join-Path $packageDirectory 'FeatureExtraction.exe'
if ([System.IO.Path]::IsPathRooted($VideoRelativePath)) {
    $videoPath = $VideoRelativePath
}
else {
    $videoPath = Join-Path $repositoryDirectory ($VideoRelativePath -replace '/', '\')
}
$outputDirectory = Join-Path $q1Directory 'cache/openface_outputs'
$null = New-Item -ItemType Directory -Force -Path $outputDirectory

if (-not (Test-Path -LiteralPath $executable -PathType Leaf)) {
    throw "OpenFace 2.2.0 executable not found: $executable"
}
if (-not (Test-Path -LiteralPath $videoPath -PathType Leaf)) {
    throw "Input video not found: $videoPath"
}

Push-Location $packageDirectory
try {
    & $executable -mloc model/main_clnf_general.txt -f $videoPath -out_dir $outputDirectory -of $OutputName -2Dfp -pose -aus -gaze
    if ($LASTEXITCODE -ne 0) {
        throw "OpenFace FeatureExtraction failed with exit code $LASTEXITCODE for $VideoRelativePath"
    }
}
finally {
    Pop-Location
}