package link

import "testing"

// **A reader's own consumer gone is not a consumer lost**: every bucket watch and stream read-back
// makes and deletes one, many a minute, and the bus says so each time (found running the controller
// against a real bus: five a tick).
func TestOnlyTheMeshsOwnConsumersAreSaidLost(t *testing.T) {
	deleted := func(stream, consumer string) bool {
		_, ok := ReadAdvisory("$JS.EVENT.ADVISORY.CONSUMER.DELETED."+stream+"."+consumer,
			[]byte(`{"type":"io.nats.jetstream.advisory.v1.consumer_action","stream":"`+stream+`","consumer":"`+consumer+`","action":"delete"}`))
		return ok
	}
	for _, c := range [][2]string{{"EVENTS", "controller"}, {"CONTROL", "controller"}, {"NODES", "anchor"},
		{"EVENTS", "anchor_shop"}, {"SEAT_NODE_BUILD_AGENT", "SEAT_NODE_BUILD_AGENT_worker"}} {
		if !deleted(c[0], c[1]) {
			t.Errorf("%s on %s deleted is not said", c[1], c[0])
		}
	}
	for _, c := range [][2]string{{"KV_mesh-controller_conditions", "381UWW5Y"}, {"EVENTS", "E7vVYoe6"},
		{"SEAT_NODE_BUILD_AGENT", "Rcnt6jla"}, {"ASSIGNMENTS", "x"}} {
		if deleted(c[0], c[1]) {
			t.Errorf("a reader's own consumer %s on %s is said lost", c[1], c[0])
		}
	}
	a, ok := ReadAdvisory("$JS.EVENT.ADVISORY.CONSUMER.MAX_DELIVERIES.EVENTS.anchor_shop",
		[]byte(`{"stream":"EVENTS","consumer":"anchor_shop","stream_seq":7,"deliveries":5}`))
	if !ok || a.Kind != AdvisoryMaxDeliveries || a.ID != "EVENTS.anchor_shop" ||
		a.Said != "how shop on anchor hears what it consumes handed message 7 over 5 times and gave up on it: "+
			"it will not be delivered again, and what it asked for was not done" {
		t.Fatalf("%+v", a)
	}
}