$ErrorActionPreference = 'Stop'
$root = Split-Path -Parent $PSScriptRoot

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

$pages = Get-Content -LiteralPath (Join-Path $root 'pages.json') -Raw -Encoding UTF8 |
  ConvertFrom-Json
$responsiveCoverage = Get-Content -LiteralPath (Join-Path $PSScriptRoot 'responsive-layout-coverage.json') -Raw -Encoding UTF8 |
  ConvertFrom-Json
foreach ($page in $pages.pages) {
  $relativeSource = "$($page.path).vue"
  $source = Join-Path $root $relativeSource
  if (-not (Test-Path -LiteralPath $source)) {
    throw "Registered page has no source file: $($page.path)"
  }
  if ($responsiveCoverage.covered -notcontains $relativeSource) {
    throw "Registered page is missing responsive coverage: $relativeSource"
  }
}

$global = Read-Utf8 'styles/global.scss'
foreach ($rule in @(
  '(?s)\.app-single-line\s*\{[^}]*overflow:\s*hidden;[^}]*text-overflow:\s*ellipsis;[^}]*white-space:\s*nowrap;',
  '(?s)\.app-long-value\s*\{[^}]*overflow-wrap:\s*anywhere;'
)) {
  if ($global -notmatch $rule) { throw "Global text-flow rule missing: $rule" }
}

foreach ($component in @(
  'components/PageHeader.vue',
  'components/AppButton.vue',
  'components/AppTabbar.vue',
  'components/GenealogyCard.vue'
)) {
  if ((Read-Utf8 $component) -notmatch 'app-single-line') {
    throw "Shared compact-text owner is not using the global rule: $component"
  }
}

$profile = Read-Utf8 'pages/profile/m01-profile-home.vue'
if ($profile -notmatch 'app-long-value') {
  throw 'Profile email must use the global long-value rule'
}

foreach ($relativePath in @(
  'pages/genealogy/g03-create-genealogy.vue',
  'pages/genealogy/g11-genealogy-settings.vue'
)) {
  $source = Read-Utf8 $relativePath
  if ($source -notmatch '(?s)\.field-row__label\s*\{[^}]*width:\s*184rpx;[^}]*white-space:\s*nowrap;') {
    throw "Genealogy form labels must retain a four-character single-line column: $relativePath"
  }
}

foreach ($relativePath in @(
  'pages/profile/m04-change-password.vue',
  'pages/profile/m05-change-phone.vue'
)) {
  $source = Read-Utf8 $relativePath
  if ($source -notmatch '(?s)\.form-row\s*>\s*text\s*\{[^}]*white-space:\s*nowrap;') {
    throw "Profile form labels must remain single-line: $relativePath"
  }
}

$phone = Read-Utf8 'pages/profile/m05-change-phone.vue'
if ($phone -notmatch 'class="code-action"') {
  throw 'Phone verification action must own a readable secondary treatment'
}
if ($phone -notmatch '(?s)\.code-action\s*\{[^}]*background:\s*rgba\(255, 250, 238, 0\.96\);[^}]*white-space:\s*nowrap;') {
  throw 'Phone verification action must not use the cramped scroll frame'
}

Write-Output 'GLOBAL-TEXT-FLOW-CONTRACT PASS'