package resolution

import (
	"strings"
	"testing"

	mcat "git.novox.be/novox/mesh-sdk/go/catalogue"
)

// The zone is the operator's (a setting) and the port is where this machine publishes the listen —
// neither is the definition's to state.
func TestAZoneIsPlacedFromTheNodesSettingAndPublishedPort(t *testing.T) {
	m := mcat.Manifest{Module: "lab", Zone: &mcat.Zone{Name: "${setting:zone}", Listen: "dns"},
		Listens: []mcat.Listening{{Name: "dns", Port: 5353, From: mcat.FromMesh}}}
	z, err := ZoneOn(m, []mcat.Layer{{From: "node", Values: map[string]any{"zone": "Incus."}}},
		map[int]int{5353: 15353}, "workstation", "10.77.0.3")
	if err != nil {
		t.Fatal(err)
	}
	if z.Zone != "incus" || z.Address != "10.77.0.3" || z.Port != 15353 || z.Node != "workstation" {
		t.Fatalf("the zone was placed as %+v", *z)
	}
	if _, err := ZoneOn(m, nil, nil, "workstation", "10.77.0.3"); err == nil {
		t.Fatal("a zone nobody named was placed")
	}
}

// One module answers a zone, and none may shadow the mesh's names or a public domain.
func TestTheMeshRefusesAZoneTwiceOrOneThatShadows(t *testing.T) {
	one := mcat.ZoneAt{Zone: "incus", Node: "workstation", Module: "lab", Address: "10.77.0.3", Port: 53}
	if p := ZonesProblems([]mcat.ZoneAt{one}, "internal", []string{"example.tld"}); len(p) != 0 {
		t.Fatalf("one ordinary zone was refused: %v", p)
	}
	twice := one
	twice.Node, twice.Module = "laptop", "other"
	cases := map[string][]mcat.ZoneAt{
		"declared by":       {one, twice},
		"mesh's own suffix": {{Zone: "lab.internal", Node: "a", Module: "m"}},
		"public domain":     {{Zone: "dev.example.tld", Node: "a", Module: "m"}},
	}
	for want, zones := range cases {
		p := strings.Join(ZonesProblems(zones, "internal", []string{"example.tld"}), "\n")
		if !strings.Contains(p, want) {
			t.Errorf("not refused for %q: %q", want, p)
		}
	}
}