[CmdletBinding()]
param (
    [Parameter(Mandatory = $false)]
    [object]
    $WebhookData
)

If ($WebhookData) {
    If ($WebhookData.RequestHeader.ITD -eq 'vBxbnq2g9M7cQJtFN3iGU4kD4pPJaSEgC5HML5ZuZk6wKfZQrpj2XfuQ5s') {
        Write-Verbose "Header has required data"
    }
    Else {
        Write-Error "Header missing required data"
        exit;
    }

    $InputParams = (ConvertFrom-Json -InputObject $WebhookData.RequestBody)
    $vCenterCredential = Get-AutomationPSCredential -Name 'VMware Auto' 
    $SharePointCredential = Get-AutomationPSCredential -Name 'SharePoint IaaS ReadWrite'

    Set-PowerCLIConfiguration -DefaultVIServerMode Multiple -ParticipateInCeip $false -Confirm:$false   
    Connect-VIServer -Server itdvmvc1.nd.gov, itdvmvc2.nd.gov -Credential $vCenterCredential

    $VMName = $InputParams.HostName
    $Id = $InputParams.Id
    $Duration = $InputParams.Duration

    #$VM = Get-VM -Name $VMName | where-object { $_.ExtensionData.summary.config.ManagedBy.Type -ne "placeholderVm" }
        
    Write-Verbose "Duration = Clone"
    $VMClones = Get-VM | Where-Object Name -eq ($VMName + "_AutoClone_" + $Id)

    If (@($VMClones).count -eq 1) {
        $Taken = $true
        $VMClone = $VMClones
    }
    else {
        if (@($VMClones).count -gt 1) {
            Write-Error "More than one VM clone match found, abort"
            Exit
        }
        else { Write-Verbose "Clone Id #$Id match not found for $VMName" }
    }

    If (@($VMClones).count -eq 1) {
        $VMClone = $VMClones
        Write-Verbose "Exactly one clone match found, updating SharePoint fields named Status and SnapshotTaken"
            
        $Task = ((Get-View ((Get-View ScheduledTaskManager).ScheduledTask)).info | where-object Description -like "AutoClone_$Id*")

        If ($Taken -eq $true) {
            $UrlContextInfo = "https://testshare.nd.gov/itd/computer-systems/distributed-systems/vmware/_api/contextinfo"
            $InvokeWebRequestParams = @{
                Uri             = $UrlContextInfo;
                Method          = "Post";
                UseBasicParsing = $true;
                Credential      = $SharePointCredential;
            }
            $RequestDigest = Invoke-RestMethod @InvokeWebRequestParams
            $RequestDigest = $RequestDigest.GetContextWebInformation.FormDigestValue
                    
            $UrlList = "https://testshare.nd.gov/itd/computer-systems/distributed-systems/vmware/_api/lists/getbytitle('VMware-Snapshots')"
            $InvokeWebRequestParams = @{
                Uri             = $UrlList;
                UseBasicParsing = $true;
                Credential      = $SharePointCredential;
            }
            $List = Invoke-RestMethod @InvokeWebRequestParams
            $ListItemEntityTypeFullName = $list.entry.content.properties.ListItemEntityTypeFullName
                
            $UrlListItem = "https://testshare.nd.gov/itd/computer-systems/distributed-systems/vmware/_api/lists/getbytitle('VMware-Snapshots')/items" + '?$top=10000'
            $InvokeWebRequestParams = @{
                Uri             = $UrlListItem;
                Method          = "Get";
                UseBasicParsing = $true;
                Headers         = @{ "Accept" = "application/json;odata=verbose" };
                Credential      = $SharePointCredential
            }
            $ListItems = ((Invoke-WebRequest @InvokeWebRequestParams) -creplace '"Id":', '"Idx":' | ConvertFrom-Json).d.results
                    
            $header = @{
                "accept"          = "application/json;odata=verbose"
                "X-RequestDigest" = $RequestDigest
                "IF-MATCH"        = '*'
                "X-HTTP-Method"   = "MERGE"
            }
                
            $RecordToModify = $ListItems | Where-Object Id -eq $Id
            If (@($RecordToModify).count -gt 1) { Write-Error "More than one record, stopping"; break }
            $IDtoModify = $RecordToModify.ID
                
            $UrlItem = "https://testshare.nd.gov/itd/computer-systems/distributed-systems/vmware/_api/lists/getbytitle('VMware-Snapshots')/items($IDtoModify)"
            $InvokeWebRequestParams = @{
                Uri             = $UrlItem;
                Method          = "Get";
                Headers         = @{ "Accept" = "application/json;odata=verbose" }
                UseBasicParsing = $true;
                Credential      = $SharePointCredential
            }
            
            [PSCustomObject]$SetRecord = @{
                "__metadata"  = @{type = $ListItemEntityTypeFullName };
                Status        = 'Taken';
                SnapshotTaken = $Task.PrevRunTime;
                AutoExpire    = ($Task.Description -split '[\r\n]+')[1].split('_')[1];
                AutoDelete    = ($Task.Description -split '[\r\n]+')[2].split('_')[1];
            }
                
            $body = $SetRecord | ConvertTo-Json
            $InvokeWebRequestParams = @{
                        
                Uri             = $UrlItem;
                Method          = "Post";
                Body            = $body;
                ContentType     = "application/json;odata=verbose";
                Headers         = $header;
                UseBasicParsing = $true;
                Credential      = $SharePointCredential;
            }
            Invoke-RestMethod @InvokeWebRequestParams

            Disconnect-VIServer * -Confirm:$false
        }
    } 
}
else {
    Write-Error "Runbook must be started from webhook"
}