#Connect-AzAccount

class ResourceCheck {
    [string] $SubscriptionId = ""
    [string] $SubscriptionName = ""
    [string] $SubscriptionState = ""
    [string] $Level0_ManagementGroupId = ""
    [string] $Level1_ManagementGroupId = ""
    [string] $Level2_ManagementGroupId = ""
    [string] $Level0_ManagementGroupName = ""
    [string] $Level1_ManagementGroupName = ""
    [string] $Level2_ManagementGroupName = ""
}

Write-Host "======================================================================================================================"
Write-Host "Creating list of Effectory Management Groups and subscriptions."
Write-Host "- Note: not very dynamic; Starts at hard coded root group and works up max 2 levels."
Write-Host "======================================================================================================================"

[string] $date = Get-Date -Format "yyyy-MM-dd HHmm"
$fileName =  ".\$date azure_managementgroups.csv" 
[ResourceCheck[]]$Result = @()

$rootManagementGroup = (Get-AzManagementGroup -GroupId 'e9792fd7-4044-47e7-a40d-3fba46f1cd09' -Expand)[0]

#level 0 
Write-Host "---------------------------------------------------------------------------------------------"
Write-Host "Level 0 Management group [$($rootManagementGroup.Name)]"
Write-Host "---------------------------------------------------------------------------------------------"

$subscriptions = $rootManagementGroup.Children | Where-Object Type -EQ '/subscriptions'

foreach ($subscription in $subscriptions) 
{
    $scope = $subscription.Id.Substring($subscription.Parent.Length, $subscription.Id.Length - $subscription.Parent.Length)
    $subscriptionId = $scope.Replace("/subscriptions/", "")
    Write-Host "Subscription [$($subscription.DisplayName) - $subscriptionId]"

    [ResourceCheck] $resourceCheck = [ResourceCheck]::new()
    $resourceCheck.Level0_ManagementGroupId = $rootManagementGroup.Id
    $resourceCheck.Level0_ManagementGroupName = $rootManagementGroup.DisplayName
    $resourceCheck.SubscriptionId = $subscriptionId
    $resourceCheck.SubscriptionName = $subscription.DisplayName
    $resourceCheck.SubscriptionState = $subscription.State
    $Result += $resourceCheck
}

#level 1
foreach ($level1ManagementGroupLister in ($rootManagementGroup.Children | Where-Object Type -EQ 'Microsoft.Management/managementGroups'))
{
    $level1ManagementGroup =  (Get-AzManagementGroup -Group $level1ManagementGroupLister.Name -Expand)[0]

    Write-Host "    ---------------------------------------------------------------------------------------------"
    Write-Host "    Level 1 Management group [$($level1ManagementGroup.Name)]"
    Write-Host "    ---------------------------------------------------------------------------------------------"

    $subscriptions = $level1ManagementGroup.Children | Where-Object Type -EQ '/subscriptions'

    foreach ($subscription in $subscriptions) 
    {
        $scope = $subscription.Id.Substring($subscription.Parent.Length, $subscription.Id.Length - $subscription.Parent.Length)
        $subscriptionId = $scope.Replace("/subscriptions/", "")
        Write-Host "    Subscription [$($subscription.DisplayName) - $subscriptionId]"
    
        [ResourceCheck] $resourceCheck = [ResourceCheck]::new()
        $resourceCheck.Level0_ManagementGroupId = $rootManagementGroup.Id
        $resourceCheck.Level0_ManagementGroupName = $rootManagementGroup.DisplayName
        $resourceCheck.Level1_ManagementGroupId = $level1ManagementGroup.Id
        $resourceCheck.Level1_ManagementGroupName = $level1ManagementGroup.DisplayName
        $resourceCheck.SubscriptionId = $subscriptionId
        $resourceCheck.SubscriptionName = $subscription.DisplayName
        $resourceCheck.SubscriptionState = $subscription.State
        $Result += $resourceCheck
    }

    #level 2
    foreach ($level2ManagementGroupLister in ($level1ManagementGroup.Children | Where-Object Type -EQ 'Microsoft.Management/managementGroups'))
    {
        $level2ManagementGroup =  (Get-AzManagementGroup -Group $level2ManagementGroupLister.Name -Expand)[0]

        Write-Host "        ---------------------------------------------------------------------------------------------"
        Write-Host "        Level 2 Management group [$($level2ManagementGroup.Name)]"
        Write-Host "        ---------------------------------------------------------------------------------------------"
        
        $subscriptions = $level2ManagementGroup.Children | Where-Object Type -EQ '/subscriptions'

        foreach ($subscription in $subscriptions) 
        {
            $scope = $subscription.Id.Substring($subscription.Parent.Length, $subscription.Id.Length - $subscription.Parent.Length)
            $subscriptionId = $scope.Replace("/subscriptions/", "")
            Write-Host "        Subscription [$($subscription.DisplayName) - $subscriptionId]"
        
            [ResourceCheck] $resourceCheck = [ResourceCheck]::new()
            $resourceCheck.Level0_ManagementGroupId = $rootManagementGroup.Id
            $resourceCheck.Level0_ManagementGroupName = $rootManagementGroup.DisplayName
            $resourceCheck.Level1_ManagementGroupId = $level1ManagementGroup.Id
            $resourceCheck.Level1_ManagementGroupName = $level1ManagementGroup.DisplayName
            $resourceCheck.Level2_ManagementGroupId = $level2ManagementGroup.Id
            $resourceCheck.Level2_ManagementGroupName = $level2ManagementGroup.DisplayName
            $resourceCheck.SubscriptionId = $subscriptionId
            $resourceCheck.SubscriptionName = $subscription.DisplayName
            $resourceCheck.SubscriptionState = $subscription.State
            $Result += $resourceCheck
        }
    }
}

$Result | Export-Csv -Path $fileName -NoTypeInformation


Write-Host "============================================================================================="
Write-Host "Done."