#Requires -Version 5.1

[CmdletBinding()]
param(
    [string] $NodePath
)

Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'

function Resolve-NodePath {
    param([AllowEmptyString()][string] $ExplicitPath)

    if (-not [string]::IsNullOrWhiteSpace($ExplicitPath)) {
        if (-not [IO.Path]::IsPathRooted($ExplicitPath) -or
            -not (Test-Path -LiteralPath $ExplicitPath -PathType Leaf)) {
            throw 'NodePath must identify an existing absolute node executable path.'
        }

        return [IO.Path]::GetFullPath($ExplicitPath)
    }

    $command = Get-Command node -CommandType Application -ErrorAction SilentlyContinue |
        Select-Object -First 1
    if ($null -ne $command) {
        return $command.Source
    }

    $programFiles = [Environment]::GetFolderPath(
        [Environment+SpecialFolder]::ProgramFiles)
    $candidates = @(
        (Join-Path $programFiles 'Microsoft Visual Studio\18\Community\MSBuild\Microsoft\VisualStudio\NodeJs\node.exe'),
        (Join-Path $programFiles 'Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VisualStudio\NodeJs\node.exe')
    )
    foreach ($candidate in $candidates) {
        if (Test-Path -LiteralPath $candidate -PathType Leaf) {
            return [IO.Path]::GetFullPath($candidate)
        }
    }

    throw 'A Node.js executable was not found. Pass its absolute path with -NodePath.'
}

$node = Resolve-NodePath -ExplicitPath $NodePath
$repositoryRoot = [IO.Path]::GetFullPath((Join-Path $PSScriptRoot '..'))
$scripts = @(
    (Join-Path $repositoryRoot 'Web\playout-safety.js'),
    (Join-Path $repositoryRoot 'Web\app.js')
)
$test = Join-Path $repositoryRoot 'tests\Web\playout-safety.test.cjs'

foreach ($script in $scripts) {
    & $node --check $script
    if ($LASTEXITCODE -ne 0) {
        throw "JavaScript syntax validation failed with exit code $LASTEXITCODE."
    }
}

& $node --test $test
if ($LASTEXITCODE -ne 0) {
    throw "Web playout tests failed with exit code $LASTEXITCODE."
}

[pscustomobject][ordered]@{
    Status = 'Passed'
    SyntaxFiles = $scripts.Count
    TestFile = [IO.Path]::GetFileName($test)
}