$ErrorActionPreference = 'Stop'

$source = Get-Content 'pages/notification/n01-message-center.vue' -Raw -Encoding UTF8
$unread = [string]([char]0x672A) + [char]0x8BFB
$read = [string]([char]0x5DF2) + [char]0x8BFB
$markAllRead = [string]([char]0x5168) + [char]0x90E8 + $read
$goToReview = [string]([char]0x524D) + [char]0x5F80 + [char]0x5165 + [char]0x8C31 + [char]0x5BA1 + [char]0x6838
$required = @(
  'n01-notice-card.png',
  'AppLoading',
  'AppToast',
  'notice-state--loading',
  'notice-state--list',
  'notice-state--empty',
  'notice-state--error',
  $unread,
  $read,
  $markAllRead,
  $goToReview
)

foreach ($token in $required) {
  if (-not $source.Contains($token)) {
    throw "N01 missing contract token: $token"
  }
}

if ($source.Contains('application-status-card.png')) {
  throw 'N01 must not reuse the genealogy application card'
}

if ($source -match '<image\s+(?:[^>]*\s)?class="notice-(?:card|state-card)__skin"') {
  throw 'N01 decorative frames must be container backgrounds instead of positioned image layers'
}
if ($source -match 'position\s*:') {
  throw 'N01 must keep ordinary content in document flow'
}
foreach ($background in @(
  'background: url("/static/assets/modules/notification/transparent/n01-notice-card.png") center / 100% 100% no-repeat',
  'background: url("/static/assets/modules/notification/transparent/n01-notice-card.png") top center / 100% 220rpx no-repeat'
)) {
  if (-not $source.Contains($background)) { throw "N01 missing document-flow background: $background" }
}

Write-Output 'N01-MODULE-BASELINE-CONTRACT PASS'