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]$ExitNodeName = "test-2",
    [string]$ResultPath = "artifacts\c19c-remote-workspace-service-channel-lease-smoke-result.json"
)

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

$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot "..\..")).ProviderPath
$runId = "c19c-" + (Get-Date -Format "yyyyMMdd-HHmmss")

function Invoke-Api {
    param(
        [string]$Method,
        [string]$Path,
        [object]$Body = $null
    )
    $uri = "$ApiBaseUrl$Path"
    try {
        if ($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
    }
    catch {
        $statusCode = $null
        if ($_.Exception.Response) {
            $statusCode = [int]$_.Exception.Response.StatusCode
        }
        $details = $_.ErrorDetails.Message
        if (-not $details) {
            $details = $_.Exception.Message
        }
        throw "$Method $Path failed with HTTP $statusCode`: $details"
    }
}

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 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 = "c19c isolate remote workspace service-channel lease 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 = "c19c_remote_workspace_service_channel_lease"
                run_id = $runId
            }
        }
    }
}

$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 = $ActorUserID
    organization_id = "org-home"
    user_id = "user-m"
    resource_id = "$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 = "c19c_remote_workspace_service_channel_lease"
        run_id = $runId
    }
}
$lease = $leaseResponse.fabric_service_channel_lease
$dataPlane = Get-PropertyValue -Item $lease -Name "data_plane" -Default $null
$entryHTTP = Get-PropertyValue -Item $lease -Name "entry_http" -Default $null
$authorityPayload = Get-PropertyValue -Item $lease -Name "authority_payload" -Default $null
$decodedAuthority = $null
if ($authorityPayload -is [string] -and $authorityPayload.Length -gt 0) {
    $decodedAuthority = $authorityPayload | ConvertFrom-Json
} elseif ($null -ne $authorityPayload) {
    $decodedAuthority = $authorityPayload
}
$authorityDataPlane = Get-PropertyValue -Item $decodedAuthority -Name "data_plane" -Default $null

$introspection = Invoke-Api -Method POST -Path "/clusters/$ClusterID/fabric/service-channels/$($lease.channel_id)/introspect" -Body @{
    token = [string]$lease.token.token
    resource_id = [string]$lease.resource_id
    service_class = "remote_workspace"
    channel_class = "interactive"
    entry_node_id = [string]$entryNode.id
}
$introspectionResult = Get-PropertyValue -Item $introspection -Name "fabric_service_channel_introspection" -Default $introspection
$introspectionDataPlane = Get-PropertyValue -Item $introspectionResult -Name "data_plane" -Default $null

$maintenance = Invoke-Api -Method GET -Path "/clusters/$ClusterID/fabric/service-channels/leases?actor_user_id=$ActorUserID&service_class=remote_workspace&limit=20"
$listedLease = @($maintenance.fabric_service_channel_lease_maintenance.leases | Where-Object { [string](Get-PropertyValue -Item $_ -Name "channel_id" -Default "") -eq [string]$lease.channel_id }) | Select-Object -First 1
$listedDataPlane = Get-PropertyValue -Item $listedLease -Name "data_plane" -Default $null

$checks = [ordered]@{
    lease_ready = ([string]$lease.status -eq "ready")
    lease_service_class_remote_workspace = ([string]$lease.service_class -eq "remote_workspace")
    lease_uses_requested_route = ([string]$lease.primary_route.route_id -eq $routeID)
    allowed_channels_are_remote_workspace = (@($lease.allowed_channels | Where-Object { [string]$_ -eq "interactive" }).Count -gt 0 -and @($lease.allowed_channels | Where-Object { [string]$_ -eq "vpn_packet" }).Count -eq 0)
    required_role_is_rdp_worker = (@($lease.required_roles | Where-Object { [string]$_ -eq "rdp-worker" }).Count -gt 0)
    entry_path_is_remote_workspace = ($null -ne $entryHTTP -and [string]$entryHTTP.path_template -like "*remote-workspaces*" -and [string]$entryHTTP.path_template -notlike "*vpn-connections*")
    entry_ws_is_remote_workspace = ($null -ne $entryHTTP -and [string]$entryHTTP.websocket_path_template -like "*remote-workspaces*" -and [string]$entryHTTP.websocket_path_template -like "*streams/ws*")
    frame_batch_media_type = ($null -ne $entryHTTP -and [string]$entryHTTP.packet_batch_format -eq "application/vnd.rap.remote-workspace-frame-batch.v1")
    data_plane_remote_workspace_contract = ($null -ne $dataPlane -and [string]$dataPlane.schema_version -eq "rap.fabric_service_channel_data_plane.v1" -and [string]$dataPlane.stable_contract_for_service_class -eq "remote_workspace")
    data_plane_fabric_primary = ($null -ne $dataPlane -and [string]$dataPlane.mode -eq "fabric_primary" -and [string]$dataPlane.working_data_transport -eq "fabric_service_channel" -and [string]$dataPlane.steady_state_transport -eq "fabric_route")
    data_plane_service_neutral = ($null -ne $dataPlane -and [bool]$dataPlane.service_neutral -and [bool]$dataPlane.protocol_agnostic)
    flow_isolation_has_interactive = ($null -ne $dataPlane -and @($dataPlane.required_flow_isolation_classes | Where-Object { [string]$_ -eq "interactive" }).Count -gt 0)
    flow_isolation_has_no_vpn_packet = ($null -ne $dataPlane -and @($dataPlane.required_flow_isolation_classes | Where-Object { [string]$_ -eq "vpn_packet" }).Count -eq 0)
    authority_payload_has_remote_workspace_data_plane = ($null -ne $authorityDataPlane -and [string]$authorityDataPlane.stable_contract_for_service_class -eq "remote_workspace")
    introspection_allows_interactive_channel = ([bool]$introspectionResult.allowed -and [string]$introspectionResult.service_class -eq "remote_workspace" -and @($introspectionResult.allowed_channels | Where-Object { [string]$_ -eq "interactive" }).Count -gt 0)
    introspection_returns_data_plane = ($null -ne $introspectionDataPlane -and [string]$introspectionDataPlane.stable_contract_for_service_class -eq "remote_workspace")
    maintenance_lists_remote_workspace_data_plane = ($null -ne $listedDataPlane -and [string]$listedDataPlane.stable_contract_for_service_class -eq "remote_workspace")
}
$failed = @($checks.GetEnumerator() | Where-Object { -not $_.Value } | ForEach-Object { $_.Key })

$result = [ordered]@{
    schema_version = "c19c.remote_workspace_service_channel_lease_smoke.v1"
    run_id = $runId
    base_url = $ApiBaseUrl
    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
    lease = $lease
    introspection = $introspectionResult
    listed_lease = $listedLease
    checks = $checks
    failed_checks = $failed
    passed = ($failed.Count -eq 0)
}

$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 80 | Set-Content -Encoding UTF8 -Path $fullResultPath

try {
    if ($routeID) {
        Invoke-Api -Method POST -Path "/clusters/$ClusterID/mesh/route-intents/$routeID/expire" -Body @{ actor_user_id = $ActorUserID } | Out-Null
    }
} catch {
    Write-Warning "Failed to expire smoke route intent $routeID`: $($_.Exception.Message)"
}

if (-not $result.passed) {
    throw "C19C remote workspace service-channel lease smoke failed. Result: $fullResultPath Failed: $($failed -join ', ')"
}

Write-Host "C19C remote workspace service-channel lease smoke passed. Result: $fullResultPath"
$result