param(
  [Parameter(Mandatory = $false)]
  [string]$ArtifactDir = "workspace/artifacts/wireframe-gen"
)

$ErrorActionPreference = "Stop"
New-Item -ItemType Directory -Force -Path $ArtifactDir | Out-Null

function Write-IfMissing {
  param(
    [string]$Path,
    [string]$Value
  )
  if (-not (Test-Path -LiteralPath $Path)) {
    Set-Content -LiteralPath $Path -Value $Value -Encoding UTF8
  }
}

Write-IfMissing (Join-Path $ArtifactDir "source_inventory.json") @'
{
  "generated_at": "",
  "input_path": "",
  "output_dir": "",
  "sources": []
}
'@

Write-IfMissing (Join-Path $ArtifactDir "normalized_project.json") @'
{
  "project": {},
  "audiences": [],
  "goals": [],
  "actors": [],
  "functional_modules": [],
  "entities": [],
  "rules": [],
  "constraints": [],
  "risks": [],
  "open_questions": [],
  "source_trace": []
}
'@

Write-IfMissing (Join-Path $ArtifactDir "ux_spec.json") @'
{
  "information_architecture": [],
  "user_flows": [],
  "screen_inventory": [],
  "screen_purposes": [],
  "ux_decisions": [],
  "research_citations": [],
  "acceptance_criteria": []
}
'@

Write-IfMissing (Join-Path $ArtifactDir "screen_blueprints.json") "[]"

Write-IfMissing (Join-Path $ArtifactDir "figma_build_manifest.json") @'
{
  "file_key": "",
  "page": "",
  "screen_ids": [],
  "created_node_ids": [],
  "mutated_node_ids": [],
  "annotation_node_ids": [],
  "screenshots": [],
  "validation_notes": [],
  "known_issues": []
}
'@

Write-IfMissing (Join-Path $ArtifactDir "normalized_project.summary.md") "# Normalized Project Summary`n"
Write-IfMissing (Join-Path $ArtifactDir "ux_spec.summary.md") "# UX Spec Summary`n"
Write-IfMissing (Join-Path $ArtifactDir "figma_validation.md") "# Figma Validation`n"
Write-IfMissing (Join-Path $ArtifactDir "decision_log.md") "# Decision Log`n"

Write-Output "Initialized artifacts in $ArtifactDir"