let d = import "../defaults.ncl" in

# Verifier for consumer↔superset config drift (ADR-001, single-image deploy).
# A consumer supplies its own routes.ncl (drives menus/footer at runtime), but the
# servable routes are the SHARED SUPERSET baked into the binary. If the consumer
# declares a route path absent from the superset, its menu/link 404s — the exact
# build/runtime split gotcha. This checks: consumer route paths ⊆ superset paths.
# Cross-repo (needs a consumer config dir); runnable as
# `just validate-config-drift <consumer-site/config>` (defaults to self = zero drift).

d.make_mode String {
  id      = "validate-config-drift",
  trigger = "Validate a consumer's route paths are a subset of the baked route superset so its menu/links never 404 against the shared binary. ADR-001 single-image deploy.",

  preconditions = [
    "nickel and jq available on PATH",
    "code/site/config/routes.ncl exists (the superset)",
    "a consumer site/config dir with routes.ncl is provided (defaults to this repo's)",
  ],

  steps = [
    {
      id     = "check-subset",
      action = "Export both routes.ncl to JSON, collect the en+es path strings of each, and report any path declared by the consumer that is NOT in the superset (those 404 on the shared binary). {slug} template routes compare as identical strings, so param routes match by shape.",
      cmd    = "cd code && NICKEL={{ rustelo_root }}/resources/nickel; paths(){ nickel export --import-path \"$NICKEL\" --import-path \"$1\" \"$1/routes.ncl\" 2>/dev/null | jq -r '[.routes[].paths.en,.routes[].paths.es]|map(select(.))|.[]' 2>/dev/null | sort -u; }; sup=$(paths site/config); cons=$(paths \"${CONSUMER_CONFIG:-site/config}\"); comm -23 <(echo \"$cons\") <(echo \"$sup\") | sed 's/^/DRIFT /'; echo done",
      actor  = 'Both,
      on_error = { strategy = 'Continue },
    },
    {
      id     = "report",
      action = "No DRIFT lines ⇒ consumer routes ⊆ superset, every consumer link resolves. Any DRIFT path ⇒ either add it to the framework superset (site/config/routes.ncl + content.ncl + rebuild) or remove it from the consumer; until then that menu/link 404s.",
      actor  = 'Both,
      depends_on = [{ step = "check-subset" }],
      on_error = { strategy = 'Stop },
    },
  ],
}