param(
  [Parameter(Mandatory = $false)]
  [string]$RegistryPath = ".agents/skills/_shared/references/ux-research-registry.json",

  [Parameter(Mandatory = $true)]
  [string]$Id,

  [Parameter(Mandatory = $true)]
  [string]$Title,

  [Parameter(Mandatory = $true)]
  [string]$Url,

  [Parameter(Mandatory = $false)]
  [string]$Publisher = "",

  [Parameter(Mandatory = $false)]
  [string[]]$Domains = @(),

  [Parameter(Mandatory = $false)]
  [string[]]$Claims = @()
)

$ErrorActionPreference = "Stop"

if (-not (Test-Path -LiteralPath $RegistryPath)) {
  throw "Registry not found: $RegistryPath"
}

$registry = Get-Content -LiteralPath $RegistryPath -Raw -Encoding UTF8 | ConvertFrom-Json
$sources = @($registry.sources)
$existing = $sources | Where-Object { $_.id -eq $Id } | Select-Object -First 1

$entry = [ordered]@{
  id = $Id
  title = $Title
  url = $Url
  publisher = $Publisher
  domains = @($Domains)
  claims = @($Claims)
  last_checked = (Get-Date).ToString("yyyy-MM-dd")
}

if ($null -ne $existing) {
  $sources = $sources | Where-Object { $_.id -ne $Id }
}

$sources += [pscustomobject]$entry
$registry.last_updated = (Get-Date).ToString("yyyy-MM-dd")
$registry.sources = @($sources | Sort-Object id)

$registry | ConvertTo-Json -Depth 10 | Set-Content -LiteralPath $RegistryPath -Encoding UTF8
Write-Output "Updated registry entry: $Id"