param
(
[Parameter(Mandatory=$true)]
[string] $Account,
[Parameter(Mandatory=$true)]
[string] $targetFolder,
[Parameter(Mandatory=$true)]
[string] $ContainerName,
[Parameter(Mandatory=$true)]
[string] $Rgname,
[Parameter(Mandatory=$true)]
[string] $csvname
)

$csvName="\$csvname.csv"
$FilePathLocation="$targetFolder$csvName"
$headerFlag=$true

if($headerFlag)
{
Add-Content -Path $FilePathLocation -Value ("Path,Size-in-MB")
$headerFlag=$false
}

function print
{
param
(
[Parameter(Mandatory=$true)]
[string] $Account,
[Parameter(Mandatory=$true)]
[string] $ContainerName
)

$ctx = Get-AzStorageAccount -StorageAccountName $Account -ResourceGroupName $Rgname

$childList = Get-AzDataLakeGen2ChildItem -Context $ctx.Context -FileSystem $ContainerName -Recurse

$dire = $childList | Where-Object IsDirectory -eq $true

$arr += @()

foreach($d in $arr)
{
$Files = Get-AzDataLakeGen2ChildItem -Context $ctx.Context -FileSystem $ContainerName -Path $d -Recurse -MaxCount 20000 | Where-Object IsDirectory -eq $false

$Total = $Files | Measure-Object -Property Length -sum

$myval = $Total | Select-Object @{Name = "SizeinMB"; Expression={_.Sum/1MB}}

Add-Content -Path $FilePathLocation -Value ($d + "," + $myval)
}
}

try
{

Write-Host "Please do not close this powershell window .. "
return (print -Account $Account -ContainerName $ContainerName)
}

catch
{
Write-Error "Opearation Failed with the following error : $(erro[0])"
}