package catalogue

import (
	"strings"
	"testing"
)

// Replay of novox/hq issue 412 (2026-10-10): which module owns /etc/hosts was enforced only after the fact,
// when two modules on one machine declared it; a module that did not claim node-hostname could declare
// /etc/hosts, and a module could claim node-hostname declaring none of its paths, and nothing refused either.
// Written only with what the catalogue had before its fix (mesh-controller #267): CatalogueProblems, Shelf,
// SeatNamed and CanHold, so it is laid over the commit before.
func TestReplay412(t *testing.T) {
	stranger := Manifest{Module: "stranger", Version: "1", Resources: []map[string]any{
		{"id": "hosts", "type": "file", "path": "/etc/hosts", "into": "block", "content": "10.0.0.1 x\n"}}}
	got := strings.Join(CatalogueProblems(Shelf{"stranger": stranger}), "; ")
	if !strings.Contains(got, "node-hostname") {
		t.Errorf("a module declaring /etc/hosts without claiming node-hostname was not refused: %q", got)
	}

	seat, ok := SeatNamed("node-hostname")
	if !ok {
		t.Fatal("no node-hostname seat")
	}
	holder := Manifest{Module: "names", Version: "1", Claims: []Claim{{Name: "node-hostname", Scope: ScopeNode,
		Serves: []string{"entries", "add", "remove"}}}}
	err := CanHold(holder, seat)
	if err == nil {
		t.Fatal("a holder of node-hostname declaring neither /etc/hosts nor /etc/hostname was accepted")
	}
	for _, want := range []string{"/etc/hosts", "/etc/hostname"} {
		if !strings.Contains(err.Error(), want) {
			t.Errorf("the refusal does not name %s: %v", want, err)
		}
	}
}