param(
    [string]$ApiBaseUrl = "http://192.168.200.61:18121/api/v1",
    [string]$ClusterID = "cfc0743d-d960-49fb-9de8-96e063d5e4aa",
    [string]$ActorUserID = "f67d943f-5397-4b3a-a229-695fe67ad700",
    [string]$DockerSSH = "test-docker",
    [string]$ExpectedBackendImage = "rap-backend:fabric-service-channel-0.2.225",
    [string]$ResultPath = "artifacts\c18z43-service-channel-schema-preflight-smoke-result.json"
)

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

$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$repoRoot = (Resolve-Path (Join-Path $scriptDir "..\..")).ProviderPath

function Invoke-Api {
    param([string]$Path, [int]$TimeoutSec = 30)
    Invoke-RestMethod -Method Get -Uri "$ApiBaseUrl$Path" -TimeoutSec $TimeoutSec
}

function Get-Prop {
    param([object]$Object, [string]$Name)
    if ($null -eq $Object) { return $null }
    $prop = $Object.PSObject.Properties[$Name]
    if ($null -eq $prop) { return $null }
    return $prop.Value
}

$schemaStatus = (Invoke-Api -Path "/clusters/$ClusterID/fabric/service-channels/schema-status?actor_user_id=$ActorUserID" -TimeoutSec 15).fabric_service_channel_schema_status
$readiness = (Invoke-Api -Path "/clusters/$ClusterID/fabric/service-channels/readiness?actor_user_id=$ActorUserID&limit=5" -TimeoutSec 30).fabric_service_channel_readiness
$health = (Invoke-Api -Path "/clusters/$ClusterID/fabric/service-channels/rebuild-health?actor_user_id=$ActorUserID&limit=5" -TimeoutSec 30).rebuild_health
$backendLine = (& ssh $DockerSSH "docker ps --format '{{.Names}} {{.Image}} {{.Status}}' | grep '^rap_test_backend '") | Out-String

$missingChecksValue = Get-Prop $schemaStatus "missing_checks"
$requiredChecksValue = Get-Prop $schemaStatus "required_checks"
$missingChecks = @()
if ($null -ne $missingChecksValue) {
    $missingChecks = @($missingChecksValue)
}
$requiredChecks = @()
if ($null -ne $requiredChecksValue) {
    $requiredChecks = @($requiredChecksValue)
}

$result = [ordered]@{
    schema_version = "c18z43.service_channel_schema_preflight_smoke.v1"
    cluster_id = $ClusterID
    passed = [bool](
        $backendLine.Contains($ExpectedBackendImage) -and
        [string]$schemaStatus.status -eq "ready" -and
        [string]$schemaStatus.reason -eq "schema_ready" -and
        [int]$schemaStatus.missing_check_count -eq 0 -and
        $missingChecks.Count -eq 0 -and
        $requiredChecks.Count -ge 20 -and
        [string]$readiness.status -ne "" -and
        [int]$health.total_attempts -ge 0
    )
    checks = [ordered]@{
        backend_expected_image_deployed = $backendLine.Contains($ExpectedBackendImage)
        schema_ready = ([string]$schemaStatus.status -eq "ready")
        reason_ready = ([string]$schemaStatus.reason -eq "schema_ready")
        no_missing_checks = ([int]$schemaStatus.missing_check_count -eq 0 -and $missingChecks.Count -eq 0)
        required_checks_present = ($requiredChecks.Count -ge 20)
        readiness_available = ([string]$readiness.status -ne "")
        rebuild_health_available = ([int]$health.total_attempts -ge 0)
    }
    summary = [ordered]@{
        backend_container = $backendLine.Trim()
        required_migration = [string]$schemaStatus.required_migration
        required_check_count = [int]$schemaStatus.required_check_count
        passed_check_count = [int]$schemaStatus.passed_check_count
        missing_check_count = [int]$schemaStatus.missing_check_count
        readiness_status = [string]$readiness.status
        rebuild_health_total_attempts = [int]$health.total_attempts
    }
}

$resultFullPath = Join-Path $repoRoot $ResultPath
$resultDir = Split-Path -Parent $resultFullPath
if (-not (Test-Path $resultDir)) {
    New-Item -ItemType Directory -Path $resultDir | Out-Null
}
$result | ConvertTo-Json -Depth 100 | Set-Content -Path $resultFullPath -Encoding UTF8

if (-not $result.passed) {
    throw "C18Z43 service-channel schema preflight smoke failed. Result: $resultFullPath"
}

Write-Host "C18Z43 service-channel schema preflight smoke passed. Result: $resultFullPath"
$result