package plugins

import (
	"testing"
	"time"

	"cwtch.im/cwtch/event"
	"cwtch.im/cwtch/protocol/connections"
	"git.openprivacy.ca/openprivacy/log"
)

// TestContactRetryQueue simulates some basic connection queueing
// NOTE: This whole test is a race condition, and does flag go's detector
// We are invasively checking the internal state of the retry plugin and accessing pointers from another
// thread.
// We could build an entire thread safe monitoring functonality, but that would dramatically expand the scope of this test.

func TestContactRetryQueue(t *testing.T) {
	log.SetLevel(log.LevelDebug)
	bus := event.NewEventManager()
	cr := NewConnectionRetry(bus, "").(*contactRetry)
	cr.ACNUp = true          // fake an ACN connection...
	cr.protocolEngine = true // fake protocol engine
	cr.stallRetries = false  // fake not being in offline mode...
	go cr.run()

	testOnion := "2wgvbza2mbuc72a4u6r6k4hc2blcvrmk4q26bfvlwbqxv2yq5k52fcqd"

	t.Logf("contact plugin up and running..sending peer connection...")
	// Assert that there is a peer connection identified as "test"
	bus.Publish(event.NewEvent(event.QueuePeerRequest, map[event.Field]string{event.RemotePeer: testOnion, event.LastSeen: "test"}))

	// Wait until the test actually exists, and is queued
	// This is the worst part of this test setup. Ideally we would sleep, or some other yielding, but
	// go test scheduling doesn't like that and even sleeping long periods won't cause the event thread to make
	// progress...
	setup := false
	for !setup {
		if _, exists := cr.connections.Load(testOnion); exists {
			if _, exists := cr.authorizedPeers.Load(testOnion); exists {
				t.Logf("authorized")
				setup = true
			}
		}
	}

	// We should very quickly become connecting...
	time.Sleep(time.Second)
	pinf, _ := cr.connections.Load(testOnion)
	if pinf.(*contact).state != 1 {
		t.Fatalf("test connection should be in connecting after update, actually: %v", pinf.(*contact).state)
	}

	// Asset that "test" is authenticated
	cr.handleEvent(testOnion, connections.AUTHENTICATED, peerConn)

	// Assert that "test has a valid state"
	pinf, _ = cr.connections.Load(testOnion)
	if pinf.(*contact).state != 3 {
		t.Fatalf("test connection should be in authenticated after update, actually: %v", pinf.(*contact).state)
	}

	// Publish an unrelated event to trigger the Plugin to go through a queuing cycle
	// If we didn't do this we would have to wait 30 seconds for a check-in
	bus.Publish(event.NewEvent(event.PeerStateChange, map[event.Field]string{event.RemotePeer: "test2", event.ConnectionState: "Disconnected"}))
	bus.Publish(event.NewEvent(event.QueuePeerRequest, map[event.Field]string{event.RemotePeer: testOnion, event.LastSeen: time.Now().Format(time.RFC3339Nano)}))

	time.Sleep(time.Second)
	pinf, _ = cr.connections.Load(testOnion)
	if pinf.(*contact).state != 1 {
		t.Fatalf("test connection should be in connecting after update, actually: %v", pinf.(*contact).state)
	}

	cr.Shutdown()
}

// Takes around 4 min unless you adjust the consts for tickTimeSec and circuitTimeoutSecs
/*
func TestRetryEmission(t *testing.T) {
	log.SetLevel(log.LevelDebug)
	log.Infof("*** Starting TestRetryEmission! ***")
	bus := event.NewEventManager()

	testQueue := event.NewQueue()
	bus.Subscribe(event.PeerRequest, testQueue)

	cr := NewConnectionRetry(bus, "").(*contactRetry)
	cr.Start()
	time.Sleep(100 * time.Millisecond)

	bus.Publish(event.NewEventList(event.ACNStatus, event.Progress, "100"))
	bus.Publish(event.NewEventList(event.ProtocolEngineCreated))

	pub, _, _ := ed25519.GenerateKey(rand.Reader)
	peerAddr := tor.GetTorV3Hostname(pub)

	bus.Publish(event.NewEventList(event.QueuePeerRequest, event.RemotePeer, peerAddr, event.LastSeen, time.Now().Format(time.RFC3339Nano)))

	log.Infof("Fetching 1st event")
	ev := testQueue.Next()
	if ev.EventType != event.PeerRequest {
		t.Errorf("1st event emitted was %v, expected %v", ev.EventType, event.PeerRequest)
	}
	log.Infof("1st event: %v", ev)

	bus.Publish(event.NewEventList(event.PeerStateChange, event.RemotePeer, peerAddr, event.ConnectionState, connections.ConnectionStateName[connections.DISCONNECTED]))

	log.Infof("fetching 2nd event")
	ev = testQueue.Next()
	log.Infof("2nd event: %v", ev)
	if ev.EventType != event.PeerRequest {
		t.Errorf("2nd event emitted was %v, expected %v", ev.EventType, event.PeerRequest)
	}

	bus.Publish(event.NewEventList(event.PeerStateChange, event.RemotePeer, peerAddr, event.ConnectionState, connections.ConnectionStateName[connections.CONNECTED]))
	time.Sleep(100 * time.Millisecond)
	bus.Publish(event.NewEventList(event.PeerStateChange, event.RemotePeer, peerAddr, event.ConnectionState, connections.ConnectionStateName[connections.DISCONNECTED]))

	log.Infof("fetching 3rd event")
	ev = testQueue.Next()
	log.Infof("3nd event: %v", ev)
	if ev.EventType != event.PeerRequest {
		t.Errorf("3nd event emitted was %v, expected %v", ev.EventType, event.PeerRequest)
	}

	cr.Shutdown()
}
*/