$ErrorActionPreference = 'Stop'

function Assert-Contains {
  param([string]$Content, [string]$Expected, [string]$Message)
  if ($Content -notmatch [regex]::Escape($Expected)) { throw $Message }
}

function Assert-NoCssSurface {
  param([string]$Content, [string]$ClassName)
  foreach ($property in @('border', 'background', 'border-radius')) {
    if ($Content -match "(?s)\\.$ClassName\\s*\\{[^}]*\\b$property\\s*:") {
      throw "Application flow must not construct .$ClassName with CSS $property"
    }
  }
}

$root = Split-Path -Parent $PSScriptRoot
$g08 = Get-Content -LiteralPath (Join-Path $root 'pages/genealogy/g08-join-application.vue') -Raw -Encoding utf8
$g09 = Get-Content -LiteralPath (Join-Path $root 'pages/genealogy/g09-my-applications.vue') -Raw -Encoding utf8
$g10 = Get-Content -LiteralPath (Join-Path $root 'pages/genealogy/g10-application-review.vue') -Raw -Encoding utf8
$catalog = Get-Content -LiteralPath (Join-Path $root 'data/page-catalog.js') -Raw -Encoding utf8

foreach ($page in @($g08, $g09, $g10)) {
  if ($page -match '<ModulePage') { throw 'G08-G10 must not retain the generic ModulePage shell' }
  Assert-Contains $page '<GenealogyPageBackground />' 'G08-G10 must use the accepted shared genealogy background'
  if ($page -match "@/utils/api\.js|\bappApi\b") { throw 'G08-G10 design phase must not connect the API layer' }
}

foreach ($required in @(
  "const joinState = ref('form')",
  'join-state--form',
  'join-state--success',
  'join-state--error',
  'g03-create-flow-panel.png',
  'a01-scroll-primary-v3.png',
  'const genealogyPreview',
  'query.genealogyId',
  "const source = ref('search')",
  'const sourceContract = computed(() =>',
  'const fieldErrors = reactive({',
  '/pages/genealogy/g09-my-applications',
  '/pages/genealogy/g01-my-genealogies?genealogyId='
)) { Assert-Contains $g08 $required "Missing G08 join contract: $required" }
foreach ($nativeUi in @('uni.showToast', 'uni.showModal', 'uni.showLoading', 'uni.showActionSheet')) {
  if ($g08 -match [regex]::Escape($nativeUi)) { throw "G08 must not use native UniApp UI: $nativeUi" }
}

foreach ($required in @(
  "const applicationState = ref('loading')",
  'application-state--list',
  'application-state--empty',
  'application-state--error',
  'application-status-card.png',
  "'PENDING'",
  "'APPROVED'",
  "'REJECTED'",
  "'WITHDRAWN'",
  'const applicationSamples',
  'const actionFor = (item) =>',
  'const withdrawTarget = ref(null)',
  '<AppDialog',
  '/pages/genealogy/g08-join-application?source=search&previous=rejected&genealogyId='
)) { Assert-Contains $g09 $required "Missing G09 application contract: $required" }
foreach ($nativeUi in @('uni.showToast', 'uni.showModal', 'uni.showLoading', 'uni.showActionSheet')) {
  if ($g09 -match [regex]::Escape($nativeUi)) { throw "G09 must not use native UniApp UI: $nativeUi" }
}

foreach ($required in @(
  "const reviewState = ref('loading')",
  'review-state--list',
  'review-state--empty',
  'review-state--error',
  'application-record-card.png',
  'application-status-card.png',
  'a01-scroll-primary-v3.png',
  'a01-scroll-secondary-v3.png',
  'const reviewSamples',
  'const confirmation = ref(null)',
  'const helpVisible = ref(false)',
  '<AppDialog',
  'review-state--no-permission'
)) { Assert-Contains $g10 $required "Missing G10 review contract: $required" }
foreach ($nativeUi in @('uni.showToast', 'uni.showModal', 'uni.showLoading', 'uni.showActionSheet')) {
  if ($g10 -match [regex]::Escape($nativeUi)) { throw "G10 must not use native UniApp UI: $nativeUi" }
}

foreach ($className in @('join-panel', 'join-action', 'application-card', 'review-action')) {
  foreach ($page in @($g08, $g09, $g10)) { Assert-NoCssSurface $page $className }
}

foreach ($entry in @('g07:', 'g08:', 'g09:')) {
  if ($catalog -match [regex]::Escape($entry)) { throw "Page catalog must remove migrated generic entry: $entry" }
}
$asset = Join-Path $root 'static/assets/modules/genealogy/opaque/application-record-card.png'
if (-not (Test-Path -LiteralPath $asset)) { throw 'G08-G10 require application-record-card.png' }
$statusAsset = Join-Path $root 'static/assets/modules/genealogy/opaque/application-status-card.png'
if (-not (Test-Path -LiteralPath $statusAsset)) { throw 'G09 and application empty states require application-status-card.png' }

Write-Output 'G08-G10-APPLICATION-FLOW-CONTRACT PASS'