param (
    [string] $subscriptionId = "",
    [string] $resourcegroupName = "",
    [string] $storageAccountName = "",
    [bool] $containersOnly = $false,
    [string[]] $excludedContainers = @()
)

if (("" -eq $subscriptionId) -or ("" -eq $resourcegroupName) -or ("" -eq $storageAccountName)) {
    throw "Parameter(s) missing."    
}
else {
    Write-Host "Processing subscription [$subscriptionId], resource group [$resourcegroupName], storage account [$storageAccountName]"    
}

# .\AzureStoragebloblist.ps1 -subscriptionId "7feeb150-9ee0-4aea-992a-5f3a89d933e6" -resourcegroupName "results-activity" -storageAccountName "effactivity"
# .\AzureStoragebloblist.ps1 -subscriptionId "7feeb150-9ee0-4aea-992a-5f3a89d933e6" -resourcegroupName "Results" -storageAccountName "myeffectoryresults"
# .\AzureStoragebloblist.ps1 -subscriptionId "a134faf1-7a89-4f2c-8389-06d00bd5e2a7" -resourcegroupName "Default-Storage-WestEurope" -storageAccountName "ecestore"
# .\AzureStoragebloblist.ps1 -subscriptionId "1ab2120c-947c-40e2-96c7-460d3e9659de" -resourcegroupName "sa-backups" -storageAccountName "archivecommvault"
# .\AzureStoragebloblist.ps1 -subscriptionId "1ab2120c-947c-40e2-96c7-460d3e9659de" -resourcegroupName "sa-backups" -storageAccountName "backupcommvault"
# .\AzureStoragebloblist.ps1 -subscriptionId "2a07dfa7-69ee-4608-b2d5-14124fcccc31" -resourcegroupName "questionnaire-server-weu" -storageAccountName "questionnairestoreweu"
# .\AzureStoragebloblist.ps1 -subscriptionId "a134faf1-7a89-4f2c-8389-06d00bd5e2a7" -resourcegroupName "Default-Storage-WestEurope" -storageAccountName "mailingstore"
# .\AzureStoragebloblist.ps1 -subscriptionId "a134faf1-7a89-4f2c-8389-06d00bd5e2a7" -resourcegroupName "Default-Storage-WestEurope" -storageAccountName "projectcenter"
# .\AzureStoragebloblist.ps1 -subscriptionId "a134faf1-7a89-4f2c-8389-06d00bd5e2a7" -resourcegroupName "effectorycore" -storageAccountName "corerightsaggregator" -ContainersOnly $true
# .\AzureStoragebloblist.ps1 -subscriptionId "3190b0fd-4a66-4636-a204-5b9f18be78a6" -resourcegroupName "authorization" -storageAccountName "authorizationv2"
# .\AzureStoragebloblist.ps1 -subscriptionId "86945e42-fa5a-4bbc-948f-3f5407f15d3e" -resourcegroupName "hierarchy" -storageAccountName "hierarchyeff"
# .\AzureStoragebloblist.ps1 -subscriptionId "f9ab522b-4895-492d-b8a8-ca6e1f60c2a8" -resourcegroupName "participant-exchange" -storageAccountName "participantexchangev2" -excludedContainers "leases","insights-metrics-pt1m","insights-logs-partitionkeystatistics","insights-logs-dataplanerequests","insights-logs-controlplanerequests","event-attachments","command-handlers","aggregates-streaming","aggregates","`$logs","`$blobchangefeed"
# .\AzureStoragebloblist.ps1 -subscriptionId "14c2354d-45a9-4e0f-98ff-be58cdbcddc7" -resourcegroupName "ec-automation-prod" -storageAccountName "stecautomationprod"
# .\AzureStoragebloblist.ps1 -subscriptionId "14c2354d-45a9-4e0f-98ff-be58cdbcddc7" -resourcegroupName "ec-measurement" -storageAccountName "stecmeasurementprod"
# .\AzureStoragebloblist.ps1 -subscriptionId "2a07dfa7-69ee-4608-b2d5-14124fcccc31" -resourcegroupName "questionnaire-server-weu" -storageAccountName "questionnairedataweu"
# .\AzureStoragebloblist.ps1 -subscriptionId "54794e27-b714-4346-81bc-05eae7ccb5a5" -resourcegroupName "question-management-api-weu" -storageAccountName "qmprojectionsweu" -excludedContainers "`$logs","`$blobchangefeed"
# .\AzureStoragebloblist.ps1 -subscriptionId "7feeb150-9ee0-4aea-992a-5f3a89d933e6" -resourcegroupName "Results" -storageAccountName "myeffectoryresults" -excludedContainers "`$logs","`$blobchangefeed", "attachments", "azure-webjobs-hosts", "azure-webjobs-secrets", "azure-webjobs-dashboard", "azure-webjobs-hosts", "azure-webjobs-secrets", "hierarchydatesettings-leases", "projectcalculations-leases","resultscleanup-applease","resultscleanup-leases","resultsgroupscorecalculator-leases","testhubname-leases"

class BlobCheck {
    [string] $SubscriptionId = ""
    [string] $SubscriptionName = ""
    [string] $ResourcegroupName = ""
    [string] $StorageAccountName = ""
    [string] $ContainerName = ""
    [string] $BlobName = ""
    [string] $LastModifiedDate = ""
}

[int] $maxCount = 100000
$containerToken = $null
$blobToken = $null

[string] $date = Get-Date -Format "yyyy-MM-dd HHmm"
$fileName =  ".\$date - $storageAccountName - bloblist.csv" 

$subscription = Set-AzContext -SubscriptionId $subscriptionId
$storageAccount = Get-AzStorageAccount -ResourceGroupName $resourcegroupName -Name $storageAccountName

if ($containersOnly -eq $true) {
    do {
        [BlobCheck[]]$Result = @()
        $containers = Get-AzStorageContainer -Context $storageAccount.Context -MaxCount $maxCount -ContinuationToken $containerToken
        
        if ($excludedContainers.Length -gt 0) {
            $containers = $containers | Where-Object { $excludedContainers -notcontains $_.Name }
        }
        
        foreach ($container in $containers) {
            [BlobCheck] $blobCheck = [BlobCheck]::new()
            $blobCheck.SubscriptionId = $subscription.Subscription.Id
            $blobCheck.SubscriptionName = $subscription.Subscription.Name
            $blobCheck.ResourcegroupName = $resourcegroupName
            $blobCheck.StorageAccountName = $storageAccountName
            $blobCheck.ContainerName = $container.Name
            $blobCheck.BlobName = ""
            $blobCheck.LastModifiedDate = $container.LastModified
            $Result += $blobCheck
        }
        if ($Result.Length -gt 0) {
            $Result | Export-Csv -Path $fileName -NoTypeInformation -Append
        }
        if ($containers.Length -le 0) 
        { 
            Break;
        }
        $containerToken = $containers[$containers.Count -1].ContinuationToken;
    }
    while ($null -ne $containerToken)
}
elseif ($containersOnly -eq $false) {
    do {

        $containers = Get-AzStorageContainer -Context $storageAccount.Context -MaxCount $maxCount -ContinuationToken $containerToken
        
        if ($excludedContainers.Length -gt 0) {
            $containers = $containers | Where-Object { $excludedContainers -notcontains $_.Name }
        }

        foreach ($container in $containers) {
        do {
                [BlobCheck[]]$Result = @()

                $blobList = Get-AzStorageBlob -Container $Container.Name -Context $storageAccount.Context -MaxCount $maxCount -ContinuationToken $blobToken #-Prefix "projects"
                if ($blobList.Length -le 0) { 
                    Break;
                }

                foreach($blob in $blobList) {
                    [BlobCheck] $blobCheck = [BlobCheck]::new()
                    $blobCheck.SubscriptionId = $subscription.Subscription.Id
                    $blobCheck.SubscriptionName = $subscription.Subscription.Name
                    $blobCheck.ResourcegroupName = $resourcegroupName
                    $blobCheck.StorageAccountName = $storageAccountName
                    $blobCheck.ContainerName = $container.Name
                    $blobCheck.BlobName = $blob.Name
                    $blobCheck.LastModifiedDate = $blob.LastModified
                    $Result += $blobCheck
                }
                $Result | Export-Csv -Path $fileName -NoTypeInformation -Append
                $blobToken = $blobList[$blobList.Count -1].ContinuationToken;
            }
            while ($null -ne $blobToken)
        }

        if ($containers.Length -le 0) 
        { 
            Break;
        }
        $containerToken = $containers[$containers.Count -1].ContinuationToken;
    }
    while ($null -ne $containerToken)
}