check.ps1

function ExecuteHealthcheck {
    param(
        $componentId,
        [hashtable]$params
    )
    
    $result = @{ }


    $props = @{
        Index = $params["SourceIndex"]
        ScopeQuery = $params["Query"]
    }

    $referenceList = Find-Item @props
    $referenceLookup = @{}
    foreach($entry in $referenceList) {
        $referenceLookup[$entry.ItemId.ToString()] = $entry
    }

    $props = @{
       Index = $params["TargetIndex"]
        ScopeQuery = $params["Query"]
    }


    $referenceIds = [System.Collections.Generic.List[string]]@()
    $referenceList | ForEach-Object { $referenceIds.Add($_.ItemId) > $null }
    $differenceIds = [System.Collections.Generic.List[string]]@()
    $differenceList | ForEach-Object { $differenceIds.Add($_.ItemId) > $null }

    $referenceHash = New-Object 'System.Collections.Generic.HashSet[String]'
    $referenceHash.UnionWith($referenceIds)
    $differenceHash = New-Object 'System.Collections.Generic.HashSet[String]'
    $differenceHash.UnionWith($differenceIds)
    $leftOnlyHash = New-Object 'System.Collections.Generic.HashSet[String]'($referenceHash)
    $leftOnlyHash.ExceptWith($differenceHash)
    $missing = $leftOnlyHash | ForEach-Object { $referenceLookup[$_] }

    if($missing.Count -gt 0){
    
    
     $result["Status"] = "Error"
        $result["Reason"] = "There are " + $missing.Count.ToString() + " differences between "+$params["SourceIndex"] + " and "+$params["TargetIndex"]
    

    }
    else{
    $result["Status"] = "Healthy"
        $result["HealthyMessage"] = "There is no differences"
    }
   return $result
}