upload-blobs.ps1

# Requires: Az.Accounts, Az.Storage

# --- Inputs ---
$SubscriptionId      = "<sub-id>"                # optional
$ResourceGroupName   = "<rg-name>"
$StorageAccountName  = "<storage-account-name>"  # single SA target

# Local root that contains per-container subfolders:
#   C:\uploads\storage\container-a\...
#   C:\uploads\storage\logs-2026-02\...
$SourceRoot          = "C:\uploads\storage"

# Container filters (choose one style)
$ContainerNames      = @("container-a","container-b")   # exact list (optional)
$ContainerPatterns   = @("logs-*","exports-*")          # wildcard list (optional)

$Overwrite           = $true
$ContentTypeAuto     = $true     # set basic content-type guessing (optional)

# --- Login / context ---
Connect-AzAccount | Out-Null
if ($SubscriptionId -and $SubscriptionId -ne "<sub-id>") {
  Set-AzContext -SubscriptionId $SubscriptionId | Out-Null
}

# --- Filter to ONE storage account ---
$sa = Get-AzStorageAccount -ResourceGroupName $ResourceGroupName |
  Where-Object StorageAccountName -EQ $StorageAccountName |
  Select-Object -First 1

if (-not $sa) { throw "Storage account '$StorageAccountName' not found in RG '$ResourceGroupName'." }
$ctx = $sa.Context

# --- List containers and filter to the set you want ---
$containers = Get-AzStorageContainer -Context $ctx

if ($ContainerNames -and $ContainerNames.Count -gt 0) {
  $containers = $containers | Where-Object { $ContainerNames -contains $_.Name }
}

if ($ContainerPatterns -and $ContainerPatterns.Count -gt 0) {
  $containers = $containers | Where-Object {
    $name = $_.Name
    $ContainerPatterns | Where-Object { $name -like $_ } | Select-Object -First 1
  }
}

if (-not $containers) { throw "No containers matched the provided filters." }

# --- Upload ---
foreach ($c in $containers) {
  $containerName = $c.Name
  $localContainerPath = Join-Path $SourceRoot $containerName

  if (-not (Test-Path $localContainerPath)) {
    Write-Host "==> Container: $containerName (SKIP - no local folder '$localContainerPath')"
    continue
  }

  Write-Host "==> Container: $containerName"
  $files = Get-ChildItem -Path $localContainerPath -Recurse -File

  foreach ($f in $files) {
    # Build blob name relative to the container folder, using forward slashes
    $relative = $f.FullName.Substring($localContainerPath.Length).TrimStart('\','/')
    $blobName = ($relative -replace '\\','/')

    # Optional: best-effort content-type
    $props = @{}
    if ($ContentTypeAuto) {
      switch -Regex ($f.Extension.ToLowerInvariant()) {
        '\.json' { $props.ContentType = 'application/json' }
        '\.txt'  { $props.ContentType = 'text/plain' }
        '\.csv'  { $props.ContentType = 'text/csv' }
        '\.htm(l)?' { $props.ContentType = 'text/html' }
        '\.xml'  { $props.ContentType = 'application/xml' }
        '\.png'  { $props.ContentType = 'image/png' }
        '\.jpe?g'{ $props.ContentType = 'image/jpeg' }
        '\.pdf'  { $props.ContentType = 'application/pdf' }
        default  { }
      }
    }

    Write-Host "  Uploading: $blobName"
    Set-AzStorageBlobContent `
      -Container $containerName `
      -File $f.FullName `
      -Blob $blobName `
      -Context $ctx `
      -Force:$Overwrite `
      @props | Out-Null
  }
}

Write-Host "Done. Uploaded from: $SourceRoot"