#!/usr/bin/env nu

# Verify every blog post that ships a graph sidecar (.ncl) is present in the
# generated content graph (site/public/r/content_graph.json). A sidecar with no
# entry means `just graph` was never re-run after the post was added — the post
# would render without its mini-graph and ONTOLOGY CONTEXT relations.
#
# Read-only. Exits non-zero on any gap, so it works as a CI gate.
#
# Usage (from outreach/site):
#   nu scripts/build/check-graph-coverage.nu .

def main [root: string = "."] {
  let graph_path = ($root | path join "site/public/r/content_graph.json")
  if not ($graph_path | path exists) {
    error make { msg: $"content_graph.json not found at ($graph_path) — run `just graph`" }
  }

  let keys = (open $graph_path | get mini | columns)
  let sidecars = (glob $"($root)/site/content/blog/**/*.ncl" | where { |p| ($p | path basename) != "_index.ncl" })
  mut missing = 0

  for s in $sidecars {
    let id = (open --raw $s | parse --regex 'id\s*=\s*"(?<id>[^"]+)"' | get id.0?)
    if ($id == null) {
      print $"  ($s | path basename): no id field"
      $missing = ($missing + 1)
    } else if ($id not-in $keys) {
      print $"  MISSING in content graph: ($id)  \(($s | path basename)\)"
      $missing = ($missing + 1)
    }
  }

  if $missing > 0 {
    error make { msg: $"graph-coverage: ($missing) post sidecar\(s\) absent from content_graph.json — run `just graph`" }
  }
  print $"graph-coverage: ($sidecars | length) sidecar\(s\) present in content graph"
}