package notify

import (
	"context"
	"errors"
	"testing"
	"time"
)

func TestCleanupFailedClientStartClearsSessionResources(t *testing.T) {
	client := NewClient().(*ClientCommon)

	pending := client.getPendingWaitPool().createAndStore(TransferMsg{ID: 101, Type: MSG_SYNC_ASK})
	fileWait := client.getFileAckPool().prepare("scope-client", "file-client", "chunk", 0)
	signalWait := client.getSignalAckPool().prepare("scope-client", 202)
	_ = client.getReceivedSignalCache().seenOrRemember("scope-client", 303)

	client.cleanupFailedClientStart()

	select {
	case _, ok := <-pending.Reply:
		if ok {
			t.Fatal("pending wait reply channel should be closed")
		}
	default:
		t.Fatal("pending wait reply channel should be closed immediately")
	}
	select {
	case _, ok := <-fileWait.reply:
		if ok {
			t.Fatal("file ack wait channel should be closed")
		}
	default:
		t.Fatal("file ack wait channel should be closed immediately")
	}
	select {
	case _, ok := <-signalWait.reply:
		if ok {
			t.Fatal("signal ack wait channel should be closed")
		}
	default:
		t.Fatal("signal ack wait channel should be closed immediately")
	}
	if duplicate := client.getReceivedSignalCache().seenOrRemember("scope-client", 303); duplicate {
		t.Fatal("received signal cache should be cleared by cleanup")
	}
}

func TestCleanupFailedServerStartClearsSessionResources(t *testing.T) {
	server := NewServer().(*ServerCommon)

	pending := server.getPendingWaitPool().createAndStore(TransferMsg{ID: 111, Type: MSG_SYNC_ASK})
	fileWait := server.getFileAckPool().prepare("scope-server", "file-server", "chunk", 0)
	signalWait := server.getSignalAckPool().prepare("scope-server", 222)
	_ = server.getReceivedSignalCache().seenOrRemember("scope-server", 333)

	server.cleanupFailedServerStart()

	select {
	case _, ok := <-pending.Reply:
		if ok {
			t.Fatal("pending wait reply channel should be closed")
		}
	default:
		t.Fatal("pending wait reply channel should be closed immediately")
	}
	select {
	case _, ok := <-fileWait.reply:
		if ok {
			t.Fatal("file ack wait channel should be closed")
		}
	default:
		t.Fatal("file ack wait channel should be closed immediately")
	}
	select {
	case _, ok := <-signalWait.reply:
		if ok {
			t.Fatal("signal ack wait channel should be closed")
		}
	default:
		t.Fatal("signal ack wait channel should be closed immediately")
	}
	if duplicate := server.getReceivedSignalCache().seenOrRemember("scope-server", 333); duplicate {
		t.Fatal("received signal cache should be cleared by cleanup")
	}
}

func TestCleanupClientSessionResourcesResetsActiveIOWithServiceShutdown(t *testing.T) {
	client := NewClient().(*ClientCommon)

	stream := newStreamHandle(context.Background(), client.getStreamRuntime(), clientFileScope(), StreamOpenRequest{
		StreamID: "cleanup-client-stream",
		Channel:  StreamDataChannel,
	}, 0, nil, nil, 0, nil, nil, nil, defaultStreamConfig())
	if err := client.getStreamRuntime().register(clientFileScope(), stream); err != nil {
		t.Fatalf("register client stream failed: %v", err)
	}

	bulk := newBulkHandle(context.Background(), client.getBulkRuntime(), clientFileScope(), BulkOpenRequest{
		BulkID: "cleanup-client-bulk",
		DataID: 1,
		Range:  BulkRange{Length: 1},
	}, 0, nil, nil, 0, nil, nil, nil, nil, nil)
	if err := client.getBulkRuntime().register(clientFileScope(), bulk); err != nil {
		t.Fatalf("register client bulk failed: %v", err)
	}

	client.cleanupClientSessionResources()

	if err := readStreamError(t, stream, time.Second); !errors.Is(err, errServiceShutdown) {
		t.Fatalf("client cleanup stream error = %v, want %v", err, errServiceShutdown)
	}
	if err := readBulkError(t, bulk, time.Second); !errors.Is(err, errServiceShutdown) {
		t.Fatalf("client cleanup bulk error = %v, want %v", err, errServiceShutdown)
	}
	if _, ok := client.getStreamRuntime().lookup(clientFileScope(), "cleanup-client-stream"); ok {
		t.Fatal("client cleanup should remove stream runtime entry")
	}
	if _, ok := client.getBulkRuntime().lookup(clientFileScope(), "cleanup-client-bulk"); ok {
		t.Fatal("client cleanup should remove bulk runtime entry")
	}
}

func TestCleanupServerSessionResourcesResetsActiveIOWithServiceShutdown(t *testing.T) {
	server := NewServer().(*ServerCommon)
	scope := "cleanup-server"

	stream := newStreamHandle(context.Background(), server.getStreamRuntime(), scope, StreamOpenRequest{
		StreamID: "cleanup-server-stream",
		Channel:  StreamDataChannel,
	}, 0, nil, nil, 0, nil, nil, nil, defaultStreamConfig())
	if err := server.getStreamRuntime().register(scope, stream); err != nil {
		t.Fatalf("register server stream failed: %v", err)
	}

	bulk := newBulkHandle(context.Background(), server.getBulkRuntime(), scope, BulkOpenRequest{
		BulkID: "cleanup-server-bulk",
		DataID: 1,
		Range:  BulkRange{Length: 1},
	}, 0, nil, nil, 0, nil, nil, nil, nil, nil)
	if err := server.getBulkRuntime().register(scope, bulk); err != nil {
		t.Fatalf("register server bulk failed: %v", err)
	}

	server.cleanupServerSessionResources()

	if err := readStreamError(t, stream, time.Second); !errors.Is(err, errServiceShutdown) {
		t.Fatalf("server cleanup stream error = %v, want %v", err, errServiceShutdown)
	}
	if err := readBulkError(t, bulk, time.Second); !errors.Is(err, errServiceShutdown) {
		t.Fatalf("server cleanup bulk error = %v, want %v", err, errServiceShutdown)
	}
	if _, ok := server.getStreamRuntime().lookup(scope, "cleanup-server-stream"); ok {
		t.Fatal("server cleanup should remove stream runtime entry")
	}
	if _, ok := server.getBulkRuntime().lookup(scope, "cleanup-server-bulk"); ok {
		t.Fatal("server cleanup should remove bulk runtime entry")
	}
}