package link_test

import (
	"testing"

	"github.com/novox/mesh-controller/internal/link"
)

// A report may carry the machine's profile, detected again by the apply that reports, and the latest
// replaces what enrolment recorded (novox/hq ADR 0161): a machine that switched its network manager
// is a machine whose uplink holder lacks a capability at its next push, not at its next enrolment.
func TestAReportsProfileReplacesTheEnrolledOne(t *testing.T) {
	e, _, _ := anEnrolledHub(t)
	ctx := t.Context()
	first := map[string]any{"capabilities": []any{map[string]any{"name": "uplink-networkmanager", "present": true}}}
	if _, err := e.Heard(ctx, link.Report{Node: "anchor", Profile: first}); err != nil {
		t.Fatal(err)
	}
	got, err := e.Inventory.Profile(ctx, "anchor")
	if err != nil {
		t.Fatal(err)
	}
	if len(got) != 1 || got[0].Name != "uplink-networkmanager" || !got[0].Present {
		t.Fatalf("the report's profile was not kept: %+v", got)
	}
	// The machine switched managers; the next report says so and the old fact is gone.
	second := map[string]any{"capabilities": []any{map[string]any{"name": "uplink-systemd-networkd", "present": true}}}
	if _, err := e.Heard(ctx, link.Report{Node: "anchor", Profile: second}); err != nil {
		t.Fatal(err)
	}
	got, err = e.Inventory.Profile(ctx, "anchor")
	if err != nil {
		t.Fatal(err)
	}
	if len(got) != 1 || got[0].Name != "uplink-systemd-networkd" {
		t.Fatalf("the latest profile did not replace the earlier one: %+v", got)
	}
	// A report with no profile leaves the last one standing.
	if _, err := e.Heard(ctx, link.Report{Node: "anchor", Host: "1"}); err != nil {
		t.Fatal(err)
	}
	if got, _ = e.Inventory.Profile(ctx, "anchor"); len(got) != 1 {
		t.Fatalf("a report without a profile erased it: %+v", got)
	}
}