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]$ExitNodeName = "test-2",
    [string]$EntryBaseUrl = "http://192.168.200.61:19131",
    [string]$ResultPath = "artifacts\c19q-remote-workspace-adapter-mailbox-guardrails-smoke-result.json"
)

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

$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot "..\..")).ProviderPath
$runId = "c19q-" + (Get-Date -Format "yyyyMMdd-HHmmss")

function Invoke-Api {
    param([string]$Method, [string]$Path, [object]$Body = $null)
    $uri = "$ApiBaseUrl$Path"
    if ($null -eq $Body) { return Invoke-RestMethod -Method $Method -Uri $uri -TimeoutSec 30 }
    return Invoke-RestMethod -Method $Method -Uri $uri -ContentType "application/json" -Body ($Body | ConvertTo-Json -Depth 80) -TimeoutSec 30
}

function Get-PropertyValue {
    param([object]$Item, [string]$Name, [object]$Default = $null)
    if ($null -eq $Item) { return $Default }
    $property = $Item.PSObject.Properties[$Name]
    if ($null -eq $property) { return $Default }
    return $property.Value
}

function ConvertTo-Base64UrlJson {
    param([object]$Value)
    if ($Value -is [string]) { $json = $Value } else { $json = $Value | ConvertTo-Json -Depth 80 -Compress }
    $bytes = [System.Text.Encoding]::UTF8.GetBytes($json)
    return [Convert]::ToBase64String($bytes).TrimEnd("=").Replace("+", "-").Replace("/", "_")
}

function Get-NodeByName {
    param([string]$Name)
    $nodes = (Invoke-Api -Method GET -Path "/clusters/$ClusterID/nodes?actor_user_id=$ActorUserID").nodes
    $node = @($nodes | Where-Object { $_.name -eq $Name }) | Select-Object -First 1
    if ($null -eq $node) { throw "Node '$Name' was not found in cluster $ClusterID" }
    return $node
}

function Disable-ExistingRemoteWorkspaceRoutes {
    param([string]$SourceNodeID, [string]$DestinationNodeID)
    $items = (Invoke-Api -Method GET -Path "/clusters/$ClusterID/mesh/route-intents?actor_user_id=$ActorUserID").route_intents
    foreach ($item in @($items)) {
        if ([string](Get-PropertyValue -Item $item -Name "status" -Default "") -ne "active") { continue }
        if ([string](Get-PropertyValue -Item $item -Name "service_class" -Default "") -ne "remote_workspace") { continue }
        $sourceSelector = Get-PropertyValue -Item $item -Name "source_selector" -Default $null
        $destinationSelector = Get-PropertyValue -Item $item -Name "destination_selector" -Default $null
        if ([string](Get-PropertyValue -Item $sourceSelector -Name "node_id" -Default "") -ne $SourceNodeID) { continue }
        if ([string](Get-PropertyValue -Item $destinationSelector -Name "node_id" -Default "") -ne $DestinationNodeID) { continue }
        [void](Invoke-Api -Method POST -Path "/clusters/$ClusterID/mesh/route-intents/$($item.id)/disable" -Body @{
            actor_user_id = $ActorUserID
            reason = "c19q isolate remote workspace adapter mailbox guardrails smoke"
        })
    }
}

function New-RemoteWorkspaceRouteIntent {
    param([string]$SourceNodeID, [string]$DestinationNodeID)
    $expiresAt = (Get-Date).ToUniversalTime().AddMinutes(5).ToString("o")
    return Invoke-Api -Method POST -Path "/clusters/$ClusterID/mesh/route-intents" -Body @{
        actor_user_id = $ActorUserID
        source_selector = @{ node_id = $SourceNodeID }
        destination_selector = @{ node_id = $DestinationNodeID }
        service_class = "remote_workspace"
        priority = 2100000000
        policy = @{
            synthetic_enabled = $true
            route_version = "$runId-remote-workspace"
            policy_version = "$runId-remote-workspace"
            peer_directory_version = "$runId-remote-workspace"
            hops = @($SourceNodeID, $DestinationNodeID)
            allowed_channels = @("control", "interactive", "reliable", "bulk", "droppable")
            max_ttl = 8
            max_hops = 8
            expires_at = $expiresAt
            metadata = @{ smoke = "c19q_remote_workspace_adapter_mailbox_guardrails"; run_id = $runId }
        }
    }
}

function New-FrameBatch {
    param([int]$Index)
    return [ordered]@{
        schema_version = "rap.remote_workspace_frame_batch.v1"
        probe_only = $true
        service_class = "remote_workspace"
        channel_class = "interactive"
        adapter_contract_id = "rap.rdp_worker.remote_workspace_adapter_contract_probe.v1"
        frames = @(@{ channel = "display"; direction = "adapter_to_client"; payload_encoding = "none"; payload_length = $Index; droppable = $true })
    }
}

function Invoke-FrameBatch {
    param([object]$FrameBatch, [hashtable]$Headers, [string]$Url)
    try {
        $response = Invoke-WebRequest -Method POST -Uri $Url -Headers $Headers -Body ($FrameBatch | ConvertTo-Json -Depth 80 -Compress) -ContentType "application/vnd.rap.remote-workspace-frame-batch.v1+json" -TimeoutSec 30
        return [ordered]@{ status_code = [int]$response.StatusCode; body = ($response.Content | ConvertFrom-Json) }
    } catch {
        $statusCode = $null
        if ($_.Exception.Response) { $statusCode = [int]$_.Exception.Response.StatusCode }
        $details = $_.ErrorDetails.Message
        if (-not $details) { $details = $_.Exception.Message }
        return [ordered]@{ status_code = $statusCode; body = $details }
    }
}

function Invoke-Mailbox {
    param([string]$SessionID, [string]$Query = "")
    $url = "$EntryBaseUrl/mesh/v1/remote-workspace/adapter-sessions/$SessionID/mailbox$Query"
    try {
        $response = Invoke-WebRequest -Method GET -Uri $url -TimeoutSec 30
        $json = $null
        if ($response.Content) { $json = $response.Content | ConvertFrom-Json }
        return [ordered]@{ status_code = [int]$response.StatusCode; body = $response.Content; json = $json }
    } catch {
        $statusCode = $null
        if ($_.Exception.Response) { $statusCode = [int]$_.Exception.Response.StatusCode }
        $details = $_.ErrorDetails.Message
        if (-not $details) { $details = $_.Exception.Message }
        return [ordered]@{ status_code = $statusCode; body = $details; json = $null }
    }
}

function Invoke-Control {
    param([string]$SessionID)
    $url = "$EntryBaseUrl/mesh/v1/remote-workspace/adapter-sessions/$SessionID/control"
    $body = @{ action = "close"; reason = "c19q mailbox guardrails close" } | ConvertTo-Json -Compress
    return Invoke-RestMethod -Method POST -Uri $url -ContentType "application/json" -Body $body -TimeoutSec 30
}

$routeID = ""
try {
    $entryNode = Get-NodeByName -Name $EntryNodeName
    $exitNode = Get-NodeByName -Name $ExitNodeName
    Disable-ExistingRemoteWorkspaceRoutes -SourceNodeID $entryNode.id -DestinationNodeID $exitNode.id
    $route = (New-RemoteWorkspaceRouteIntent -SourceNodeID $entryNode.id -DestinationNodeID $exitNode.id).route_intent
    $routeID = [string]$route.id

    $leaseResponse = Invoke-Api -Method POST -Path "/clusters/$ClusterID/fabric/service-channels/leases" -Body @{
        actor_user_id = $ActorUserID
        organization_id = "org-home"
        user_id = "user-q"
        resource_id = "$runId-remote-workspace"
        service_class = "remote_workspace"
        entry_node_ids = @([string]$entryNode.id)
        exit_node_ids = @([string]$exitNode.id)
        preferred_entry_node_id = [string]$entryNode.id
        preferred_exit_node_id = [string]$exitNode.id
        ttl_seconds = 120
        metadata = @{ smoke = "c19q_remote_workspace_adapter_mailbox_guardrails"; run_id = $runId }
    }
    $lease = $leaseResponse.fabric_service_channel_lease
    $authorityPayload = Get-PropertyValue -Item $lease -Name "authority_payload" -Default $null
    if ($authorityPayload -is [string] -and $authorityPayload.Length -gt 0) { $decodedAuthority = $authorityPayload | ConvertFrom-Json } else { $decodedAuthority = $authorityPayload }

    $ingressUrl = "$EntryBaseUrl/api/v1/clusters/$ClusterID/fabric/service-channels/$($lease.channel_id)/remote-workspaces/$($lease.resource_id)/streams/interactive"
    $headers = @{
        "X-RAP-Service-Channel-Token" = [string]$lease.token.token
        "X-RAP-Fabric-Channel-ID" = [string]$lease.channel_id
        "X-RAP-Service-Channel-Authority-Payload" = ConvertTo-Base64UrlJson -Value $decodedAuthority
        "X-RAP-Service-Channel-Authority-Signature" = ConvertTo-Base64UrlJson -Value (Get-PropertyValue -Item $lease -Name "authority_signature" -Default $null)
        "X-RAP-Service-Class" = "remote_workspace"
        "X-RAP-Channel-Class" = "interactive"
    }

    $deliveries = @()
    for ($i = 0; $i -lt 18; $i++) {
        $deliveries += Invoke-FrameBatch -FrameBatch (New-FrameBatch -Index $i) -Headers $headers -Url $ingressUrl
    }
    $firstDelivery = @($deliveries | Select-Object -First 1)[0]
    $adapterSessionID = [string](Get-PropertyValue -Item $firstDelivery.body -Name "adapter_session_id" -Default "")

    $mailbox = Invoke-Mailbox -SessionID $adapterSessionID -Query "?limit=50"
    $mailboxEvents = if ($null -eq $mailbox.json.events) { @() } else { @($mailbox.json.events) }
    $invalidID = Invoke-Mailbox -SessionID "rap-rw-adapter-session-nothex"
    $invalidLimit = Invoke-Mailbox -SessionID $adapterSessionID -Query "?limit=0"
    $unknownSession = Invoke-Mailbox -SessionID "rap-rw-adapter-session-bbbbbbbbbbbbbbbbbbbbbbbb"
    $drained = Invoke-Mailbox -SessionID $adapterSessionID -Query "?drain=true&limit=4"
    $postPartialDrain = Invoke-Mailbox -SessionID $adapterSessionID -Query "?limit=50"
    $control = Invoke-Control -SessionID $adapterSessionID
    $closedMailbox = Invoke-Mailbox -SessionID $adapterSessionID

    $acceptedDeliveries = @($deliveries | Where-Object { [int]$_.status_code -eq 202 })
    $firstMailboxSequence = if (@($mailboxEvents).Count -gt 0) { [int64]$mailboxEvents[0].sequence } else { 0 }
    $lastMailboxSequence = if (@($mailboxEvents).Count -gt 0) { [int64]$mailboxEvents[-1].sequence } else { 0 }
    $checks = [ordered]@{
        lease_ready = ([string]$lease.status -eq "ready")
        deliveries_accepted = (@($acceptedDeliveries).Count -eq 18)
        adapter_session_id_present = ($adapterSessionID -match "^rap-rw-adapter-session-[0-9a-f]{24}$")
        mailbox_capacity_enforced = ([int]$mailbox.json.mailbox_capacity -eq 16 -and [int]$mailbox.json.mailbox_depth -eq 16 -and @($mailboxEvents).Count -eq 16)
        mailbox_drop_oldest_visible = ([int64]$mailbox.json.enqueued_total -eq 18 -and [int64]$mailbox.json.dropped_total -eq 2 -and ($lastMailboxSequence - $firstMailboxSequence) -eq 15)
        invalid_id_rejected = ([int]$invalidID.status_code -eq 400 -and [string]$invalidID.body -match "invalid remote workspace adapter session id")
        invalid_limit_rejected = ([int]$invalidLimit.status_code -eq 400 -and [string]$invalidLimit.body -match "invalid remote workspace adapter session mailbox limit")
        unknown_session_rejected = ([int]$unknownSession.status_code -eq 400 -and [string]$unknownSession.body -match "not found")
        partial_drain_preserves_remainder = ([int]$drained.json.mailbox_depth -eq 16 -and [int]$drained.json.depth_after -eq 12 -and [int]$postPartialDrain.json.mailbox_depth -eq 12)
        close_accepted = ([bool]$control.accepted -and [string]$control.session_state -eq "closed")
        closed_mailbox_rejected = ([int]$closedMailbox.status_code -eq 400 -and [string]$closedMailbox.body -match "not found")
    }
    $failed = @($checks.GetEnumerator() | Where-Object { -not $_.Value } | ForEach-Object { $_.Key })

    $result = [ordered]@{
        schema_version = "c19q.remote_workspace_adapter_mailbox_guardrails_smoke.v1"
        run_id = $runId
        cluster_id = $ClusterID
        entry_node = [ordered]@{ id = $entryNode.id; name = $entryNode.name }
        exit_node = [ordered]@{ id = $exitNode.id; name = $exitNode.name }
        channel_id = [string]$lease.channel_id
        route_id = $routeID
        adapter_session_id = $adapterSessionID
        deliveries = $deliveries
        mailbox = $mailbox
        invalid_id = $invalidID
        invalid_limit = $invalidLimit
        unknown_session = $unknownSession
        drained = $drained
        post_partial_drain = $postPartialDrain
        control = $control
        closed_mailbox = $closedMailbox
        checks = $checks
        failed_checks = $failed
        passed = ($failed.Count -eq 0)
    }
} finally {
    try {
        if ($routeID) { Invoke-Api -Method POST -Path "/clusters/$ClusterID/mesh/route-intents/$routeID/expire" -Body @{ actor_user_id = $ActorUserID } | Out-Null }
        Invoke-Api -Method POST -Path "/clusters/$ClusterID/fabric/service-channels/leases/cleanup" -Body @{ actor_user_id = $ActorUserID; limit = 100 } | Out-Null
    } catch {
        Write-Warning "cleanup failed after c19q smoke: $($_.Exception.Message)"
    }
}

$fullResultPath = Join-Path $repoRoot $ResultPath
$resultDir = Split-Path -Parent $fullResultPath
if ($resultDir) { New-Item -ItemType Directory -Force -Path $resultDir | Out-Null }
$result | ConvertTo-Json -Depth 100 | Set-Content -Encoding UTF8 -Path $fullResultPath

if (-not $result.passed) {
    throw "C19Q remote workspace adapter mailbox guardrails smoke failed. Result: $fullResultPath Failed: $($failed -join ', ')"
}

Write-Host "C19Q remote workspace adapter mailbox guardrails smoke passed. Result: $fullResultPath"
$result