$ErrorActionPreference = 'Stop'

function Read-Utf8([string]$Path) {
  [System.IO.File]::ReadAllText((Join-Path (Join-Path $PSScriptRoot '..') $Path), [System.Text.Encoding]::UTF8)
}

function Assert-Contains([string]$Content, [string]$Expected, [string]$Message) {
  if (-not $Content.Contains($Expected)) { throw $Message }
}

$page = Read-Utf8 'pages/family/f10-video-list.vue'
$catalog = Read-Utf8 'data/page-catalog.js'

foreach ($expected in @(
  'class="video-status-page"',
  'class="video-status-card"',
  'class="video-return-action"',
  'const returnToFamily = () =>',
  '/pages/family/f01-family-feed',
  'ModulePageBackground',
  'PageHeader',
  'AppButton'
)) {
  Assert-Contains $page $expected "F10 contract missing: $expected"
}

foreach ($forbidden in @('<ModulePage page-id="f10"', 'import ModulePage from')) {
  if ($page.Contains($forbidden)) { throw "F10 retains forbidden dependency: $forbidden" }
}

if ($page -match '(?m)^\s*position\s*:\s*relative\s*;') {
  throw 'F10 ordinary page content must not use position: relative'
}

foreach ($selector in @('.video-status-lead text', '.video-status-card__body')) {
  $escapedSelector = [regex]::Escape($selector)
  if ($page -notmatch "(?s)$escapedSelector\s*\{[^}]*z-index\s*:\s*1\s*;") {
    throw "F10 grid content must render above its decorative skin: $selector"
  }
}

if ($catalog -match '(?m)^\s*f10\s*:') {
  throw 'F10 obsolete page-catalog owner must be removed'
}

Write-Output 'F10-VIDEO-STATUS-CONTRACT PASS'