lmxopcua/scripts/e2e/test-galaxy.ps1

#Requires -Version 7.0
<#
.SYNOPSIS
  End-to-end CLI test for the Galaxy (MXAccess) driver — read, write, subscribe,
  alarms, and history through a running OtOpcUa server.

.DESCRIPTION
  Unlike the other e2e scripts there is no `otopcua-galaxy-cli` — the Galaxy
  driver proxy lives in-process with the server + talks to `OtOpcUaGalaxyHost`
  over a named pipe (MXAccess is 32-bit COM, can't ship in the .NET 10 process).
  Every stage therefore goes through `otopcua-cli` against the published OPC UA
  address space.

  Seven stages:

    1. Probe             — otopcua-cli connect + read the source NodeId; confirms
                           the whole Galaxy.Host → Proxy → server → client chain is
                           up
    2. Source read       — otopcua-cli read returns a Good value for the source
                           attribute; proves IReadable.ReadAsync is dispatching
                           through the IPC bridge
    3. Virtual-tag bridge — `otopcua-cli read` on the VirtualTag NodeId; confirms
                           the Phase 7 CachedTagUpstreamSource is bridging the
                           driver-sourced input into the scripting engine
    4. Subscribe-sees-change — subscribe to the source NodeId in the background;
                           Galaxy pushes a data-change event within N seconds
                           (Galaxy's underlying attribute must be actively
                           changing — production Galaxies typically have
                           scan-driven updates; for idle galaxies, widen
                           -ChangeWaitSec or drive the write stage below first)
    5. Reverse bridge    — `otopcua-cli write` to a writable Galaxy attribute;
                           read it back. Gracefully becomes INFO-only if the
                           attribute's Galaxy-side AccessLevel forbids writes
                           (BadUserAccessDenied / BadNotWritable)
    6. Alarm fires       — subscribe to the scripted-alarm Condition NodeId,
                           drive the source tag above its threshold, confirm an
                           Active alarm event surfaces. Exercises the Part 9
                           alarm-condition propagation path
    7. History read      — historyread on the source tag over the last hour;
                           confirms Aveva Historian → IHistoryProvider dispatch
                           returns samples

  The Phase 7 seed (`scripts/smoke/seed-phase-7-smoke.sql`) already plants the
  right shape — one Galaxy DriverInstance, one source Tag, one VirtualTag
  (source × 2), one ScriptedAlarm (source > 50). Substitute the real Galaxy
  attribute FullName into `dbo.Tag.TagConfig` before running.

.PARAMETER OpcUaUrl
  OtOpcUa server endpoint. Default opc.tcp://localhost:4840.

.PARAMETER SourceNodeId
  NodeId of the driver-sourced Galaxy tag (numeric, writable preferred). NodeIds
  are path-based per OPC UA Part 3 §5.2.2 — the default matches the Phase 7 seed
  walking `p7-smoke-galaxy` (DriverInstanceId) → `lab-floor` → `galaxy-line` →
  `reactor-1` → `Source` (Tag.Name).

.PARAMETER VirtualNodeId
  NodeId of the VirtualTag computed as Source × 2 (Phase 7 scripting). Same
  path-based scheme, ending in the VirtualTag.Name (`Doubled`).

.PARAMETER AlarmNodeId
  NodeId of the scripted-alarm Condition (fires when Source > 50). Same
  path-based scheme, ending in ScriptedAlarm.Name (`OverTemp`).

.PARAMETER AlarmTriggerValue
  Value written to -SourceNodeId to push it over the alarm threshold.
  Default 75 (well above the seeded 50-threshold).

.PARAMETER ChangeWaitSec
  Seconds the subscribe-sees-change stage waits for a natural data change.
  Default 10. Idle galaxies may need this extended or the stage will fail
  with "subscribe did not observe...".

.PARAMETER AlarmWaitSec
  Seconds the alarm-fires stage waits after triggering the write. Default 10.

.PARAMETER HistoryLookbackSec
  Seconds back from now to query history. Default 3600 (1 h).

.EXAMPLE
  # Against the default Phase-7 smoke seed + live Galaxy + OtOpcUa server
  ./scripts/e2e/test-galaxy.ps1

.EXAMPLE
  # Custom NodeIds from a non-smoke cluster
  ./scripts/e2e/test-galaxy.ps1 `
    -SourceNodeId "ns=2;s=Reactor1.Temperature" `
    -VirtualNodeId "ns=2;s=Reactor1.TempDoubled" `
    -AlarmNodeId   "ns=2;s=Reactor1.OverTemp" `
    -AlarmTriggerValue 120
#>

param(
    [string]$OpcUaUrl           = "opc.tcp://localhost:4840",
    [string]$SourceNodeId       = "ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/Source",
    [string]$VirtualNodeId      = "ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/Doubled",
    [string]$AlarmNodeId        = "ns=2;s=p7-smoke-galaxy/lab-floor/galaxy-line/reactor-1/OverTemp",
    [string]$AlarmTriggerValue  = "75",
    [int]$ChangeWaitSec         = 10,
    [int]$AlarmWaitSec          = 10,
    [int]$HistoryLookbackSec    = 3600
)

$ErrorActionPreference = "Stop"
. "$PSScriptRoot/_common.ps1"

$opcUaCli = Get-CliInvocation `
    -ProjectFolder "src/ZB.MOM.WW.OtOpcUa.Client.CLI" `
    -ExeName "otopcua-cli"

$results = @()

# ---------------------------------------------------------------------------
# Stage 1 — Probe. The probe is an otopcua-cli read against the source NodeId;
# success implies Galaxy.Host is up + the pipe ACL lets the server connect +
# the Proxy is tracking the tag + the server published it.
# ---------------------------------------------------------------------------

Write-Header "Probe"
$probe = Invoke-Cli -Cli $opcUaCli -Args @("read", "-u", $OpcUaUrl, "-n", $SourceNodeId)
if ($probe.ExitCode -eq 0 -and $probe.Output -match "Status:\s+0x00000000") {
    Write-Pass "source NodeId readable (Galaxy pipe → proxy → server → client chain up)"
    $results += @{ Passed = $true }
} else {
    Write-Fail "probe read failed (exit=$($probe.ExitCode))"
    Write-Host $probe.Output
    $results += @{ Passed = $false; Reason = "probe failed" }
}

# ---------------------------------------------------------------------------
# Stage 2 — Source read. Captures the current value for the later virtual-tag
# comparison + confirms read dispatch works end-to-end. Failure here without a
# stage-1 failure would be unusual — probe already reads.
# ---------------------------------------------------------------------------

Write-Header "Source read"
$sourceRead = Invoke-Cli -Cli $opcUaCli -Args @("read", "-u", $OpcUaUrl, "-n", $SourceNodeId)
$sourceValue = $null
if ($sourceRead.ExitCode -eq 0 -and $sourceRead.Output -match "Value:\s+([^\r\n]+)") {
    $sourceValue = $Matches[1].Trim()
    Write-Pass "source value = $sourceValue"
    $results += @{ Passed = $true }
} else {
    Write-Fail "source read failed"
    Write-Host $sourceRead.Output
    $results += @{ Passed = $false; Reason = "source read failed" }
}

# ---------------------------------------------------------------------------
# Stage 3 — Virtual-tag bridge. Reads the Phase 7 VirtualTag (source × 2). Not
# strictly driver-specific, but exercises the CachedTagUpstreamSource bridge
# (the seam most likely to silently stop working after a Galaxy-side change).
# Skip if the VirtualNodeId param is empty (non-Phase-7 clusters).
# ---------------------------------------------------------------------------

if ([string]::IsNullOrEmpty($VirtualNodeId)) {
    Write-Header "Virtual-tag bridge"
    Write-Skip "VirtualNodeId not supplied — skipping Phase 7 bridge check"
} else {
    Write-Header "Virtual-tag bridge"
    $vtRead = Invoke-Cli -Cli $opcUaCli -Args @("read", "-u", $OpcUaUrl, "-n", $VirtualNodeId)
    if ($vtRead.ExitCode -eq 0 -and $vtRead.Output -match "Value:\s+([^\r\n]+)") {
        $vtValue = $Matches[1].Trim()
        Write-Pass "virtual-tag value = $vtValue (source was $sourceValue)"
        $results += @{ Passed = $true }
    } else {
        Write-Fail "virtual-tag read failed"
        Write-Host $vtRead.Output
        $results += @{ Passed = $false; Reason = "virtual-tag read failed" }
    }
}

# ---------------------------------------------------------------------------
# Stage 4 — Subscribe-sees-change. otopcua-cli subscribe in the background;
# wait N seconds for Galaxy to push any data-change event on the source node.
# This is optimistic — if the Galaxy attribute is idle, widen -ChangeWaitSec.
# ---------------------------------------------------------------------------

Write-Header "Subscribe sees change"
$stdout = New-TemporaryFile
$stderr = New-TemporaryFile
$subArgs = @($opcUaCli.PrefixArgs) + @(
    "subscribe", "-u", $OpcUaUrl, "-n", $SourceNodeId,
    "-i", "500", "--duration", "$ChangeWaitSec")
$subProc = Start-Process -FilePath $opcUaCli.File `
    -ArgumentList $subArgs -NoNewWindow -PassThru `
    -RedirectStandardOutput $stdout.FullName `
    -RedirectStandardError  $stderr.FullName
Write-Info "subscription started (pid $($subProc.Id)) for ${ChangeWaitSec}s"
$subProc.WaitForExit(($ChangeWaitSec + 5) * 1000) | Out-Null
if (-not $subProc.HasExited) { Stop-Process -Id $subProc.Id -Force }
$subOut = (Get-Content $stdout.FullName -Raw) + (Get-Content $stderr.FullName -Raw)
Remove-Item $stdout.FullName, $stderr.FullName -ErrorAction SilentlyContinue

# Any `=` followed by `(Good)` line after the initial subscribe-confirmation
# indicates at least one data-change tick arrived. The `@(...)` forces an array
# so `.Count` works on the 0-match + single-match cases that Set-StrictMode
# -Version 3.0 otherwise flags as `property 'Count' cannot be found`.
$changeLines = @(($subOut -split "`n") | Where-Object { $_ -match "=\s+.*\(Good\)" })
if ($changeLines.Count -gt 0) {
    Write-Pass "$($changeLines.Count) data-change events observed"
    $results += @{ Passed = $true }
} else {
    Write-Fail "no data-change events in ${ChangeWaitSec}s — Galaxy attribute may be idle; rerun with -ChangeWaitSec larger, or trigger a change first"
    Write-Host $subOut
    $results += @{ Passed = $false; Reason = "no data-change" }
}

# ---------------------------------------------------------------------------
# Stage 5 — Reverse bridge (OPC UA write → Galaxy). Galaxy attributes with
# AccessLevel > FreeAccess often reject anonymous writes; record as INFO when
# that's the case rather than failing the whole script.
# ---------------------------------------------------------------------------

Write-Header "Reverse bridge (OPC UA write)"
$writeValue = [int]$AlarmTriggerValue   # reuse the alarm trigger value — two stages for one write
$w = Invoke-Cli -Cli $opcUaCli -Args @(
    "write", "-u", $OpcUaUrl, "-n", $SourceNodeId, "-v", "$writeValue")
if ($w.ExitCode -ne 0) {
    # Connection/protocol failure — still a test failure.
    Write-Fail "write CLI exit=$($w.ExitCode)"
    Write-Host $w.Output
    $results += @{ Passed = $false; Reason = "write failed" }
} elseif ($w.Output -match "Write failed:\s*0x801F0000") {
    Write-Info "BadUserAccessDenied — attribute's Galaxy-side ACL blocks writes for this session. Not a bug; grant WriteOperate or run against a writable attribute."
    $results += @{ Passed = $true; Reason = "acl-expected" }
} elseif ($w.Output -match "Write failed:\s*0x80390000|BadNotWritable") {
    Write-Info "BadNotWritable — attribute is read-only at the Galaxy layer (status attributes, @-prefixed meta, etc)."
    $results += @{ Passed = $true; Reason = "readonly-expected" }
} elseif ($w.Output -match "Write successful") {
    # Read back — Galaxy poll interval + MXAccess advise may need a second or two to settle.
    Start-Sleep -Seconds 2
    $r = Invoke-Cli -Cli $opcUaCli -Args @("read", "-u", $OpcUaUrl, "-n", $SourceNodeId)
    if ($r.Output -match "Value:\s+$([Regex]::Escape("$writeValue"))\b") {
        Write-Pass "write propagated — source reads back $writeValue"
        $results += @{ Passed = $true }
    } else {
        Write-Fail "write reported success but read-back did not reflect $writeValue"
        Write-Host $r.Output
        $results += @{ Passed = $false; Reason = "write-readback mismatch" }
    }
} else {
    Write-Fail "unexpected write response"
    Write-Host $w.Output
    $results += @{ Passed = $false; Reason = "unexpected write response" }
}

# ---------------------------------------------------------------------------
# Stage 6 — Alarm fires. Uses the helper from _common.ps1. If stage 5 already
# wrote the trigger value the alarm may already be active; that's fine — the
# Part 9 ConditionRefresh in the alarms CLI replays the current state so the
# subscribe window still captures the Active event.
# ---------------------------------------------------------------------------

if ([string]::IsNullOrEmpty($AlarmNodeId)) {
    Write-Header "Alarm fires on threshold"
    Write-Skip "AlarmNodeId not supplied — skipping alarm check"
} else {
    $results += Test-AlarmFiresOnThreshold `
        -OpcUaCli $opcUaCli `
        -OpcUaUrl $OpcUaUrl `
        -AlarmNodeId $AlarmNodeId `
        -InputNodeId $SourceNodeId `
        -TriggerValue $AlarmTriggerValue `
        -DurationSec $AlarmWaitSec
}

# ---------------------------------------------------------------------------
# Stage 7 — History read. historyread against the source tag over the last N
# seconds. Failure modes the skip pattern catches: tag not historized in the
# Galaxy attribute's historization profile, or the lookback window misses the
# sample cadence.
# ---------------------------------------------------------------------------

$results += Test-HistoryHasSamples `
    -OpcUaCli $opcUaCli `
    -OpcUaUrl $OpcUaUrl `
    -NodeId $SourceNodeId `
    -LookbackSec $HistoryLookbackSec

Write-Summary -Title "Galaxy e2e" -Results $results
if ($results | Where-Object { -not $_.Passed }) { exit 1 }