param(
    [string]$ApiBaseUrl = "http://192.168.200.61:18121/api/v1",
    [string]$ClusterID = "cfc0743d-d960-49fb-9de8-96e063d5e4aa",
    [string]$ActorUserID = "f67d943f-5397-4b3a-a229-695fe67ad700",
    [string]$EntryNodeName = "test-1",
    [string]$RelayNodeName = "test-3",
    [string]$ExitNodeName = "test-2",
    [string]$EntryBaseUrl = "http://192.168.200.61:19131",
    [string]$DockerSSH = "test-docker",
    [int]$InitialBatchCount = 12,
    [int]$LearningBatchCount = 24,
    [int]$PostChurnBatchCount = 24,
    [int]$PacketsPerBatch = 8,
    [int]$BatchDelayMilliseconds = 25,
    [string]$ResultPath = "artifacts\c18z19-service-channel-parallel-flow-window-smoke-result.json"
)

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

$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$repoRoot = (Resolve-Path (Join-Path $scriptDir "..\..")).ProviderPath
$innerResultPath = "artifacts\c18z19-service-channel-parallel-flow-window-inner-result.json"
$innerResultFullPath = Join-Path $repoRoot $innerResultPath

$agentRoot = Join-Path $repoRoot "agents\rap-node-agent"
Push-Location $agentRoot
try {
    $unitTestOutput = & go test ./internal/vpnruntime -run "TestFabricClientPacketIngressParallelFlowWindowDoesNotBlockIndependentChannel" 2>&1
    if ($LASTEXITCODE -ne 0) {
        $unitText = ($unitTestOutput | Out-String)
        throw "C18Z19 parallel flow window unit test failed:`n$unitText"
    }
} finally {
    Pop-Location
}

& (Join-Path $scriptDir "c18z18-service-channel-session-scoped-fairness-smoke.ps1") `
    -ApiBaseUrl $ApiBaseUrl `
    -ClusterID $ClusterID `
    -ActorUserID $ActorUserID `
    -EntryNodeName $EntryNodeName `
    -RelayNodeName $RelayNodeName `
    -ExitNodeName $ExitNodeName `
    -EntryBaseUrl $EntryBaseUrl `
    -DockerSSH $DockerSSH `
    -InitialBatchCount $InitialBatchCount `
    -LearningBatchCount $LearningBatchCount `
    -PostChurnBatchCount $PostChurnBatchCount `
    -PacketsPerBatch $PacketsPerBatch `
    -BatchDelayMilliseconds $BatchDelayMilliseconds `
    -ResultPath $innerResultPath

$result = Get-Content -Path $innerResultFullPath -Raw | ConvertFrom-Json
$finalIngress = $result.telemetry.final_entry_ingress
$maxParallel = 0
$parallelBatches = 0
if ($finalIngress.PSObject.Properties["max_parallel_flow_sends"]) {
    $maxParallel = [int]$finalIngress.max_parallel_flow_sends
}
if ($finalIngress.PSObject.Properties["send_flow_parallel_batches"]) {
    $parallelBatches = [int64]$finalIngress.send_flow_parallel_batches
}

$result.schema_version = "c18z19.service_channel_parallel_flow_window_smoke.v1"
$result | Add-Member -NotePropertyName c18z19_checks -NotePropertyValue ([ordered]@{
    unit_parallel_flow_window_does_not_block_independent_channel = ($unitTestOutput -join "`n").Contains("ok")
    live_parallel_window_enabled = ($maxParallel -ge 2)
    live_parallel_batches_observed = ($parallelBatches -gt 0)
    live_session_scoped_fairness_still_passed = ([bool]$result.passed)
    live_session_completed_without_backend_fallback = ([int]$result.backend_fallback_queue.depth -eq 0)
    live_session_completed_without_flow_drops = ([int]$result.flow_drops.delta -eq 0)
}) -Force
$result | Add-Member -NotePropertyName c18z19_summary -NotePropertyValue ([ordered]@{
    unit_test_output = ($unitTestOutput | Out-String).Trim()
    max_parallel_flow_sends = $maxParallel
    send_flow_parallel_batches = $parallelBatches
}) -Force
$result.passed = [bool]($result.passed -and
    $result.c18z19_checks.unit_parallel_flow_window_does_not_block_independent_channel -and
    $result.c18z19_checks.live_parallel_window_enabled -and
    $result.c18z19_checks.live_parallel_batches_observed -and
    $result.c18z19_checks.live_session_completed_without_backend_fallback -and
    $result.c18z19_checks.live_session_completed_without_flow_drops)

$resolvedResultPath = Join-Path $repoRoot $ResultPath
$result | ConvertTo-Json -Depth 100 | Set-Content -Path $resolvedResultPath -Encoding UTF8
Remove-Item -Path $innerResultFullPath -Force -ErrorAction SilentlyContinue

if (-not $result.passed) {
    throw "C18Z19 parallel flow window smoke failed. Result: $resolvedResultPath"
}

Write-Host "C18Z19 service-channel parallel flow window smoke passed. Result: $resolvedResultPath"
$result