[Console]::OutputEncoding = [System.Text.Encoding]::UTF8
$wikiPath = 'D:\Applications\app\kepano-obsidian-main\wiki'
$vaultPath = 'D:\Applications\app\kepano-obsidian-main'

$wikiFiles = Get-ChildItem -Path $wikiPath -Filter '*.md' -File
$pageNames = $wikiFiles | ForEach-Object { $_.BaseName }

$allMd = Get-ChildItem -Path $vaultPath -Filter '*.md' -File -Recurse | Where-Object { $_.Length -lt 500KB }
$allContent = @{}
foreach ($f in $allMd) {
    try { $allContent[$f.FullName] = [System.IO.File]::ReadAllText($f.FullName) } catch {}
}

$orphans = @()
foreach ($pn in $pageNames) {
    if ($pn -eq 'index' -or $pn -eq 'log') { continue }
    $linkPattern = '[[' + $pn + ']'
    $hasInbound = $false
    foreach ($fp in $allContent.Keys) {
        $baseF = [System.IO.Path]::GetFileNameWithoutExtension($fp)
        if ($baseF -eq $pn) { continue }
        if ($allContent[$fp] -match [regex]::Escape($linkPattern)) {
            $hasInbound = $true
            break
        }
    }
    if (-not $hasInbound) { $orphans += $pn }
}
Write-Output "ORPHAN_COUNT: $($orphans.Count)"
$orphans | ForEach-Object { Write-Output $_ }