param (
    [string]$Port = "3000"
)
$HealthUrl = "http://127.0.0.1:$Port/ping"
$UiUrl = "http://127.0.0.1:$Port/?t=$(Get-Random)"
$ExpectedContent = "open-color" # Basic sanity check that we are serving the updated UI

Write-Host "Verifying server HEALTH at $HealthUrl..." -ForegroundColor Cyan

for ($i = 1; $i -le 40; $i++) {
    try {
        $healthResponse = Invoke-WebRequest -Uri $HealthUrl -UseBasicParsing -ErrorAction Stop
        if ($healthResponse.StatusCode -eq 200) {
            Write-Host "✅ Server /ping is UP! (Attempt $i)" -ForegroundColor Green
            
            Write-Host "Verifying UI payload at $UiUrl..." -ForegroundColor Cyan
            $uiResponse = Invoke-WebRequest -Uri $UiUrl -UseBasicParsing -ErrorAction Stop
            if ($uiResponse.Content -match $ExpectedContent) {
                Write-Host "✅ Server is serving the correct UI payload!" -ForegroundColor Green
                exit 0
            } else {
                Write-Host "⚠️ Server is healthy but UI serving old cached content. Retrying..." -ForegroundColor Yellow
            }
        }
    } catch {
        Write-Host "⏳ Server /ping not responding yet... (Attempt $i)" -ForegroundColor Yellow
    }
    Start-Sleep -Seconds 1
}

Write-Error "❌ Deployment verification failed! /ping endpoint unreachable after 40 seconds."
exit 1