package modules

import (
	"gsg/internal/core"
	"gsg/internal/notices"
)

func init() { core.Register("notices", noticesMod) }

// notices: the site-wide banners followed by the ones for the repository
// being viewed, in that order. Site-scoped routes (the index) build a Ctx
// with c.Repo == nil and an empty Info.Slug, so this must never touch
// c.Repo and must skip the repo half when Slug is empty. A nil default
// store (the feature is off) is an empty list, not an error -- the
// template uses modOr and guards on Immutable, so an empty list renders
// nothing.
func noticesMod(c *core.Ctx, args ...string) (any, error) {
	st := notices.Default()
	if st == nil {
		return []notices.Notice(nil), nil
	}
	snap := st.Snapshot()
	out := make([]notices.Notice, 0, len(snap.Doc.Global)+8)
	out = append(out, snap.Doc.Global...)
	if c.Info.Slug != "" {
		out = append(out, snap.Doc.Repos[c.Info.Slug]...)
	}
	return out, nil
}