# Performance test script for ResourceUsage API
Write-Host "Waiting for service to start..." -ForegroundColor Yellow
Start-Sleep -Seconds 5

Write-Host "Testing API response time..." -ForegroundColor Green
$times = @()
$errors = 0

for ($i = 1; $i -le 5; $i++) {
    $stopwatch = [System.Diagnostics.Stopwatch]::StartNew()
    try {
        $response = Invoke-WebRequest -Uri "http://localhost:5000/api/resource/usage" -UseBasicParsing -TimeoutSec 30
        $stopwatch.Stop()
        $time = $stopwatch.ElapsedMilliseconds
        $times += $time
        Write-Host "Test $i - Response time: ${time}ms - Status: $($response.StatusCode)" -ForegroundColor Cyan
        
        # Show first response content for verification
        if ($i -eq 1) {
            $jsonContent = $response.Content | ConvertFrom-Json
            Write-Host "Sample response - CPU Usage: $($jsonContent.CPU.Usage)%" -ForegroundColor White
        }
    }
    catch {
        $stopwatch.Stop()
        $errors++
        Write-Host "Test $i - Error after $($stopwatch.ElapsedMilliseconds)ms: $($_.Exception.Message)" -ForegroundColor Red
    }
    
    if ($i -lt 5) {
        Start-Sleep -Seconds 2
    }
}

if ($times.Count -gt 0) {
    $avgTime = ($times | Measure-Object -Average).Average
    $minTime = ($times | Measure-Object -Minimum).Minimum
    $maxTime = ($times | Measure-Object -Maximum).Maximum
    
    Write-Host "`nPerformance Results:" -ForegroundColor Green
    Write-Host "  Average response time: $([math]::Round($avgTime, 2))ms" -ForegroundColor White
    Write-Host "  Minimum response time: ${minTime}ms" -ForegroundColor White
    Write-Host "  Maximum response time: ${maxTime}ms" -ForegroundColor White
    Write-Host "  Successful requests: $($times.Count)/5" -ForegroundColor White
    Write-Host "  Failed requests: $errors/5" -ForegroundColor White
    
    if ($avgTime -lt 1000) {
        Write-Host "✅ Performance looks good!" -ForegroundColor Green
    } elseif ($avgTime -lt 3000) {
        Write-Host "⚠️  Performance is acceptable but could be better" -ForegroundColor Yellow
    } else {
        Write-Host "❌ Performance needs improvement" -ForegroundColor Red
    }
} else {
    Write-Host "❌ All requests failed!" -ForegroundColor Red
}