$ErrorActionPreference = 'Stop'

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

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

$page = Read-Utf8 'pages/family/f09-media-upload.vue'
$catalog = Read-Utf8 'data/page-catalog.js'

foreach ($expected in @(
  'class="media-upload-page"',
  'media-upload-state--${uploadState}',
  'class="media-album-card"',
  'class="media-photo-grid"',
  'class="media-add-tile"',
  'class="media-batch-field"',
  'class="media-photo-field"',
  'class="media-photo-editor"',
  'class="media-photo-editor__thumb"',
  'class="media-photo-editor__position"',
  'const MAX_PHOTOS = 9;',
  'const selectMockPhotos = () =>',
  'const selectPhoto = (index) =>',
  'const removePhoto = (index) =>',
  'const addMockPhoto = () =>',
  'const updateActiveNote = (event) =>',
  'const startUpload = () =>',
  'const retryFailed = () =>',
  'const returnToAlbum = () =>',
  '["permission", "selected", "uploading", "error", "success"].includes(query.state)',
  'class="media-permission-action"',
  'class="media-photo-status media-photo-status--error"',
  'class="media-success-title"',
  'class="media-progress-copy"',
  'class="media-primary-action"',
  'class="media-retry-action"',
  'f08-reunion-hero.png',
  'f08-family-portrait.png',
  'f08-reunion-table.png',
  'f08-ancestral-home.png',
  'f08-ancestral-portrait.png',
  'ModulePageBackground',
  'PageHeader',
  'AppButton'
)) {
  Assert-Contains $page $expected "F09 contract missing: $expected"
}

foreach ($forbidden in @(
  '<ModulePage page-id="f09"',
  'import ModulePage from',
  'uni.chooseMedia',
  'uni.showModal'
)) {
  if ($page.Contains($forbidden)) { throw "F09 retains forbidden dependency: $forbidden" }
}

foreach ($requiredPosition in @(
  '(?s)\.media-photo-tile\s*\{[^}]*position:\s*relative;',
  '(?s)\.media-photo-order,\s*\.media-photo-current,\s*\.media-photo-status\s*\{[^}]*position:\s*absolute;',
  '(?s)\.media-photo-remove\s*\{[^}]*position:\s*absolute;'
)) {
  if ($page -notmatch $requiredPosition) { throw "F09 required thumbnail overlay boundary missing: $requiredPosition" }
}
if ([regex]::Matches($page, 'position\s*:').Count -ne 3) { throw 'F09 must keep only thumbnail badges and their local photo boundary positioned' }

if ($catalog -match '(?m)^\s*f09\s*:') {
  throw 'F09 obsolete page-catalog owner must be removed'
}

Write-Output 'F09-MEDIA-UPLOAD-CONTRACT PASS'