$ErrorActionPreference = 'Stop'
$project = Split-Path $PSScriptRoot -Parent
$package = Join-Path $project 'dist\MusicBridge-win-x64'
$testRoot = [IO.Path]::GetFullPath((Join-Path $project ('dist\install-smoke-' + [guid]::NewGuid().ToString('N'))))
$allowed = [IO.Path]::GetFullPath((Join-Path $project 'dist')) + '\'
if (!$testRoot.StartsWith($allowed, [StringComparison]::OrdinalIgnoreCase)) { throw 'Unsafe test path.' }
& (Join-Path $package 'Install.ps1') -InstallDirectory $testRoot -NoShortcut
$exe = Join-Path $testRoot 'MusicBridge.Agent.exe'
if (!(Test-Path -LiteralPath (Join-Path $testRoot 'coreclr.dll'))) { throw 'Self-contained runtime is missing.' }
$config = Get-Content -LiteralPath (Join-Path $testRoot 'MusicBridge.Agent.runtimeconfig.json') -Raw | ConvertFrom-Json
if (!$config.runtimeOptions.includedFrameworks) { throw 'Package unexpectedly depends on globally installed runtimes.' }
& $exe --help
if ($LASTEXITCODE -ne 0) { throw 'Installed executable failed to start.' }
& (Join-Path $package 'Install.ps1') -InstallDirectory $testRoot -NoShortcut
$probe = [IO.File]::Open($exe, 'Open', 'Read', 'None')
try {
    $blocked = $false
    try { & (Join-Path $package 'Install.ps1') -InstallDirectory $testRoot -NoShortcut }
    catch { $blocked = $true }
    if (!$blocked) { throw 'Installer did not reject locked executable.' }
} finally { $probe.Dispose() }
& (Join-Path $testRoot 'Uninstall.ps1')
if (Test-Path -LiteralPath $testRoot) { throw 'Uninstall did not remove test directory.' }
Write-Host 'PASS: install, self-contained launch, update, locked-file protection, uninstall.'