package resolution

import (
	"strings"
	"testing"

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

func containersOf(t *testing.T, r mcat.Resolution, with mcat.Rendering) []map[string]any {
	t.Helper()
	out, err := Declaration(r, with)
	if err != nil {
		t.Fatal(err)
	}
	var found []map[string]any
	for _, res := range out {
		if res["type"] == "container" {
			found = append(found, res)
		}
	}
	return found
}

func namesOf(r map[string]any) []string {
	var out []string
	if given, ok := r["hosts"].([]any); ok {
		for _, h := range given {
			out = append(out, h.(string))
		}
	}
	return out
}

// No resource is given a `hosts` key it did not declare. A file or a service carrying one is a
// declaration the host refuses outright — it takes no unknown field — so an invented key breaks
// the whole machine rather than one resource.
func TestNothingIsGivenNamesItDidNotDeclare(t *testing.T) {
	out, err := Declaration(mcat.Resolution{Node: "laptop", Modules: []mcat.Manifest{{
		Module: "app",
		Resources: []map[string]any{
			{"id": "conf", "type": "file", "path": "/etc/app.conf", "content": "x", "mode": "0644"},
			{"id": "run", "type": "service", "unit": "app.service", "state": "running"},
			{"id": "web", "type": "container", "name": "web",
				"image": "registry.example/web@sha256:" + strings.Repeat("a", 64)},
		},
	}}}, mcat.Rendering{Names: map[string]string{"anchor.internal": "10.42.0.1"}})
	if err != nil {
		t.Fatal(err)
	}
	for _, r := range out {
		if _, given := r["hosts"]; given {
			t.Fatalf("a %v was given names it never declared: %v", r["type"], r)
		}
	}
}