param(
  [string]$BaseUrl = "http://127.0.0.1:17317",
  [int]$Limit = 2,
  [ValidateSet("artifacts", "weapons", "characters", "materials")]
  [string]$Category = "artifacts",
  [int]$PollIntervalSeconds = 1,
  [int]$TimeoutSeconds = 180,
  [string]$OutputRoot = (Join-Path (Resolve-Path -LiteralPath ".").Path "outputs\native-live-smoke"),
  [switch]$SkipProbe,
  [switch]$Persist
)

$ErrorActionPreference = "Stop"

function ConvertTo-SafeFilePart([string]$Value) {
  $safe = $Value -replace "[^A-Za-z0-9._-]+", "-"
  $safe = $safe.Trim("-")
  if ($safe.Length -eq 0) { return "item" }
  if ($safe.Length -gt 80) { return $safe.Substring(0, 80) }
  return $safe
}

function Invoke-DevJson([string]$Path) {
  $uri = if ($Path.StartsWith("http")) { $Path } else { "$BaseUrl$Path" }
  try {
    Invoke-RestMethod -Method Get -Uri $uri -TimeoutSec 90
  } catch {
    $response = $_.Exception.Response
    if ($response) {
      $stream = $response.GetResponseStream()
      if ($stream) {
        $reader = New-Object System.IO.StreamReader($stream)
        $body = $reader.ReadToEnd()
        if (-not [string]::IsNullOrWhiteSpace($body)) {
          try {
            return $body | ConvertFrom-Json
          } catch {
            throw "Dev endpoint $uri returned HTTP error with non-JSON body: $body"
          }
        }
      }
    }
    throw
  }
}

function Save-Json([string]$Name, [object]$Payload) {
  $path = Join-Path $RunDir "$(ConvertTo-SafeFilePart $Name).json"
  $Payload | ConvertTo-Json -Depth 40 | Set-Content -LiteralPath $path -Encoding UTF8
  return $path
}

function Test-ProbeSucceeded([object]$ProbePayload) {
  if ($ProbePayload.ok) { return $true }
  if ($ProbePayload.changed) { return $true }
  if ($ProbePayload.click -and $ProbePayload.click.clicked -and $ProbePayload.click.moved -and -not $ProbePayload.click.inputBlocked) { return $true }
  return $false
}

function Get-NativeScanner([object]$StatusPayload) {
  if ($StatusPayload.nativeScanner) { return $StatusPayload.nativeScanner }
  if ($StatusPayload.scanner) { return $StatusPayload.scanner }
  return $null
}

function Get-ExpectedAppSignature() {
  $mainPath = Join-Path (Resolve-Path -LiteralPath ".").Path "electron\main.ts"
  $mainSource = Get-Content -LiteralPath $mainPath -Raw
  $match = [regex]::Match($mainSource, 'APP_RUNTIME_SIGNATURE\s*=\s*"([^"]+)"')
  if (-not $match.Success) {
    throw "APP_RUNTIME_SIGNATURE not found in electron/main.ts."
  }
  return $match.Groups[1].Value
}

function UriEscape([string]$Value) {
  return [System.Uri]::EscapeDataString($Value)
}

$safeLimit = [Math]::Max(1, [Math]::Min(100, $Limit))
$timestamp = Get-Date -Format "yyyyMMdd-HHmmss"
$RunDir = Join-Path $OutputRoot $timestamp
New-Item -ItemType Directory -Force -Path $RunDir | Out-Null

$summary = [ordered]@{
  ok = $false
  createdAt = (Get-Date).ToString("o")
  limit = $safeLimit
  category = $Category
  expectedSignature = ""
  outputDir = $RunDir
  persistRequested = [bool]$Persist
  health = $null
  data = $null
  preflight = $null
  probe = $null
  finalStatus = $null
  process = $null
  results = $null
  errors = @()
}

try {
  $expectedSignature = Get-ExpectedAppSignature
  $summary.expectedSignature = $expectedSignature
  $health = Invoke-DevJson "/health"
  $summary.health = @{
    ok = [bool]$health.ok
    signature = if ($health.appBuild) { [string]$health.appBuild.signature } else { "" }
  }
  Save-Json "01-health" $health | Out-Null
  if (-not $health.appBuild -or [string]$health.appBuild.signature -ne $expectedSignature) {
    throw "Dev endpoint is stale: /health signature '$($summary.health.signature)' does not match source '$expectedSignature'. Restart the elevated app."
  }

  $data = Invoke-DevJson "/scanner/native/data"
  $summary.data = @{
    ok = [bool]$data.ok
    version = [string]$data.status.version
    totalEntries = [int]$data.status.totalEntries
    valid = [bool]$data.status.valid
  }
  Save-Json "02-native-data" $data | Out-Null
  if (-not $data.ok) {
    throw "Native IK data check failed."
  }

  $preflight = Invoke-DevJson "/scanner/native/preflight?category=$Category"
  $summary.preflight = @{
    ok = [bool]$preflight.ok
    ready = [bool]$preflight.status.ready
    category = [string]$preflight.status.category
    categoryReady = [bool]$preflight.status.categoryReady
    genshinFound = [bool]$preflight.status.genshinFound
    isSixteenNine = [bool]$preflight.status.isSixteenNine
    gridCount = [int]$preflight.status.grid.count
    visualReady = if ($preflight.status.visual) { [bool]$preflight.status.visual.ready } else { $null }
    visualWhitePct = if ($preflight.status.visual) { [double]$preflight.status.visual.whitePct } else { $null }
    visualDarkPct = if ($preflight.status.visual) { [double]$preflight.status.visual.darkPct } else { $null }
    visualColorPct = if ($preflight.status.visual) { [double]$preflight.status.visual.colorPct } else { $null }
    visualLumaStdDev = if ($preflight.status.visual) { [double]$preflight.status.visual.lumaStdDev } else { $null }
    blockReason = [string]$preflight.status.blockReason
  }
  Save-Json "03-native-preflight" $preflight | Out-Null
  if (-not $preflight.ok) {
    $preflightReason = if ($preflight.status.blockReason) { [string]$preflight.status.blockReason } else { "unknown preflight block reason" }
    throw "Native scanner preflight is not ready for category '$Category': $preflightReason"
  }

  if (-not $SkipProbe) {
    $probe = Invoke-DevJson "/automation/probe-click?index=1"
    $summary.probe = @{
      ok = [bool](Test-ProbeSucceeded $probe)
      endpointOk = [bool]$probe.ok
      changed = [bool]$probe.changed
    }
    Save-Json "04-probe-click" $probe | Out-Null
    if (-not (Test-ProbeSucceeded $probe)) {
      throw "Probe click did not prove safe input delivery."
    }
  }

  $start = Invoke-DevJson "/scanner/start?limit=$safeLimit&category=$Category"
  Save-Json "05-native-start" $start | Out-Null
  $startedScanner = Get-NativeScanner $start
  if ($null -eq $startedScanner) {
    throw "Native scanner start returned no scanner payload."
  }

  $deadline = (Get-Date).AddSeconds($TimeoutSeconds)
  $polls = @()
  do {
    Start-Sleep -Seconds $PollIntervalSeconds
    $status = Invoke-DevJson "/scanner/status"
    $scanner = Get-NativeScanner $status
    $polls += [pscustomobject]@{
      at = (Get-Date).ToString("o")
      status = if ($scanner) { [string]$scanner.status } else { "missing" }
      running = if ($scanner) { [bool]$scanner.running } else { $false }
      captured = if ($scanner) { [int]$scanner.captured } else { 0 }
      activeMs = if ($scanner) { [int]$scanner.activeMs } else { 0 }
      message = if ($scanner) { [string]$scanner.message } else { "missing native scanner payload" }
    }
    if ($null -ne $scanner -and -not $scanner.running) {
      break
    }
  } while ((Get-Date) -lt $deadline)

  Save-Json "06-native-polls" $polls | Out-Null
  $final = Invoke-DevJson "/scanner/status"
  Save-Json "07-native-final-status" $final | Out-Null
  $finalScanner = Get-NativeScanner $final
  if ($null -eq $finalScanner) {
    throw "Native scanner final status returned no scanner payload."
  }

  $summary.finalStatus = @{
    status = [string]$finalScanner.status
    running = [bool]$finalScanner.running
    runDir = [string]$finalScanner.runDir
    captured = [int]$finalScanner.captured
    clicked = [int]$finalScanner.clicked
    pages = [int]$finalScanner.pages
    activeMs = [int]$finalScanner.activeMs
    message = [string]$finalScanner.message
  }

  if ($finalScanner.running) {
    throw "Native scanner did not finish before timeout."
  }
  if ([string]$finalScanner.status -ne "done") {
    throw "Native scanner finished with status '$($finalScanner.status)': $($finalScanner.message)"
  }
  if ([int]$finalScanner.captured -lt $safeLimit) {
    throw "Native scanner captured $($finalScanner.captured), expected at least $safeLimit."
  }

  $runDirParam = UriEscape([string]$finalScanner.runDir)
  $persistParam = if ($Persist) { "1" } else { "0" }
  $process = Invoke-DevJson "/scanner/native/process?runDir=$runDirParam&limit=$safeLimit&persist=$persistParam"
  Save-Json "08-native-process" $process | Out-Null
  $summary.process = @{
    ok = [bool]$process.ok
    processed = [int]$process.status.processed
    parsed = [int]$process.status.parsed
    review = [int]$process.status.review
    errors = [int]$process.status.errors
    stored = [int]$process.status.stored
    persisted = [bool]$process.status.persisted
    queueConcurrency = [int]$process.status.queueConcurrency
    elapsedMs = [int]$process.status.elapsedMs
  }
  if (-not $process.ok) {
    throw "Native post-capture processing failed."
  }

  $results = Invoke-DevJson "/scanner/native/results?runDir=$runDirParam&limit=$safeLimit"
  Save-Json "09-native-results" $results | Out-Null
  $summary.results = @{
    ok = [bool]$results.ok
    total = [int]$results.status.total
    loaded = [int]$results.status.results.Count
  }
  if (-not $results.ok) {
    throw "Native scan results could not be loaded."
  }

  $summary.ok = $true
} catch {
  $summary.errors += [string]$_.Exception.Message
  throw
} finally {
  $summaryPath = Save-Json "native-live-smoke-summary" ([pscustomobject]$summary)
  Write-Host "Native live smoke summary: $summaryPath"
  if ($summary.ok) {
    Write-Host ("ok limit={0} captured={1} parsed={2} review={3} errors={4} stored={5} persisted={6}" -f `
      $summary.limit,
      $summary.finalStatus.captured,
      $summary.process.parsed,
      $summary.process.review,
      $summary.process.errors,
      $summary.process.stored,
      $summary.process.persisted)
  }
}