param(
    [string]$ApiBaseUrl = "http://192.168.200.61:18121/api/v1",
    [string]$ClusterID = "cfc0743d-d960-49fb-9de8-96e063d5e4aa",
    [string]$ActorUserID = "f67d943f-5397-4b3a-a229-695fe67ad700",
    [string]$NodeName = "test-1",
    [string]$ResultPath = "artifacts\c19a-service-workload-supervision-smoke-result.json"
)

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

$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot "..\..")).ProviderPath
$runId = "c19a-" + (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 40) -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-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 Wait-ForWorkloadStates {
    param(
        [string]$NodeID,
        [hashtable]$Expected,
        [int]$TimeoutSeconds = 90
    )
    $deadline = (Get-Date).AddSeconds($TimeoutSeconds)
    $last = @()
    while ((Get-Date) -lt $deadline) {
        Start-Sleep -Seconds 5
        $statuses = (Invoke-Api -Method GET -Path "/clusters/$ClusterID/nodes/$NodeID/workloads/status?actor_user_id=$ActorUserID").workload_statuses
        $last = @($statuses | Where-Object { $Expected.ContainsKey([string]$_.service_type) })
        $ok = $true
        foreach ($key in $Expected.Keys) {
            $item = @($last | Where-Object { $_.service_type -eq $key } | Select-Object -First 1)
            if ($null -eq $item -or [string]$item.reported_state -ne [string]$Expected[$key]) {
                $ok = $false
                break
            }
        }
        if ($ok) {
            return $last
        }
    }
    throw "Timed out waiting for workload states. Last observed: $($last | ConvertTo-Json -Depth 20)"
}

$node = Get-NodeByName -Name $NodeName

Invoke-Api -Method PUT -Path "/clusters/$ClusterID/nodes/$($node.id)/workloads/synthetic.echo/desired" -Body @{
    actor_user_id = $ActorUserID
    desired_state = "enabled"
    version = "c19a-synthetic-echo-$runId"
    runtime_mode = "native"
    artifact_ref = "builtin:synthetic.echo"
    config = @{
        echo = "enabled"
        scope = "service-supervisor-smoke"
        run_id = $runId
    }
    environment = @{}
} | Out-Null

$expected = @{
    "core-mesh" = "running"
    "fabric-listener" = "running"
    "synthetic.echo" = "running"
}
$statuses = Wait-ForWorkloadStates -NodeID $node.id -Expected $expected
$synthetic = @($statuses | Where-Object { $_.service_type -eq "synthetic.echo" } | Select-Object -First 1)

$checks = [ordered]@{
    core_mesh_running = [bool](@($statuses | Where-Object { $_.service_type -eq "core-mesh" -and $_.reported_state -eq "running" }).Count -gt 0)
    fabric_listener_running = [bool](@($statuses | Where-Object { $_.service_type -eq "fabric-listener" -and $_.reported_state -eq "running" }).Count -gt 0)
    synthetic_echo_running = [bool]($null -ne $synthetic -and [string]$synthetic.reported_state -eq "running")
    synthetic_echo_builtin = [bool]($null -ne $synthetic -and [string]$synthetic.status_payload.execution_mode -eq "builtin")
    synthetic_echo_test_only = [bool]($null -ne $synthetic -and [string]$synthetic.status_payload.traffic -eq "test_service_only")
}

$result = [ordered]@{
    schema_version = "c19a.service_workload_supervision_smoke.v1"
    run_id = $runId
    base_url = $ApiBaseUrl
    cluster_id = $ClusterID
    node = [ordered]@{
        id = $node.id
        name = $node.name
    }
    statuses = $statuses
    checks = $checks
    passed = -not ($checks.Values -contains $false)
}

$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 30 | Set-Content -Encoding UTF8 -Path $fullResultPath
if (-not $result.passed) {
    throw "C19A service workload supervision smoke failed. Result: $fullResultPath"
}

Write-Host "C19A service workload supervision smoke passed. Result: $fullResultPath"
$result