package jobs

import (
	"os"
	"os/signal"
	"sync"
	"syscall"
	"testing"
	"time"

	toxiproxy "github.com/Shopify/toxiproxy/client"
	"github.com/golang/mock/gomock"
	endure "github.com/spiral/endure/pkg/container"
	"github.com/spiral/roadrunner/v2/plugins/config"
	"github.com/spiral/roadrunner/v2/plugins/informer"
	"github.com/spiral/roadrunner/v2/plugins/jobs"
	"github.com/spiral/roadrunner/v2/plugins/jobs/drivers/amqp"
	"github.com/spiral/roadrunner/v2/plugins/jobs/drivers/beanstalk"
	"github.com/spiral/roadrunner/v2/plugins/jobs/drivers/sqs"
	"github.com/spiral/roadrunner/v2/plugins/resetter"
	rpcPlugin "github.com/spiral/roadrunner/v2/plugins/rpc"
	"github.com/spiral/roadrunner/v2/plugins/server"
	"github.com/spiral/roadrunner/v2/tests/mocks"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestDurabilityAMQP(t *testing.T) {
	client := toxiproxy.NewClient("127.0.0.1:8474")

	_, err := client.CreateProxy("redial", "127.0.0.1:23679", "127.0.0.1:5672")
	require.NoError(t, err)
	defer deleteProxy("redial", t)

	cont, err := endure.NewContainer(nil, endure.SetLogLevel(endure.ErrorLevel))
	require.NoError(t, err)

	cfg := &config.Viper{
		Path:   "durability/.rr-amqp-durability-redial.yaml",
		Prefix: "rr",
	}

	controller := gomock.NewController(t)
	mockLogger := mocks.NewMockLogger(controller)

	// general
	mockLogger.EXPECT().Debug("worker destructed", "pid", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Debug("worker constructed", "pid", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Debug("Started RPC service", "address", "tcp://127.0.0.1:6001", "services", gomock.Any()).Times(1)

	mockLogger.EXPECT().Info("pipeline active", "pipeline", "test-1", "start", gomock.Any(), "elapsed", gomock.Any()).Times(2)
	mockLogger.EXPECT().Info("pipeline active", "pipeline", "test-2", "start", gomock.Any(), "elapsed", gomock.Any()).Times(2)

	mockLogger.EXPECT().Error(gomock.Any(), gomock.Any(), gomock.Any()).AnyTimes()

	mockLogger.EXPECT().Warn("pipeline stopped", "pipeline", "test-1", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)
	mockLogger.EXPECT().Warn("pipeline stopped", "pipeline", "test-2", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)

	mockLogger.EXPECT().Info("delivery channel closed, leaving the rabbit listener").Times(4)

	// redial errors
	mockLogger.EXPECT().Warn("rabbitmq reconnecting, caused by", "error", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Error("pipeline error", "pipeline", "test-1", "error", gomock.Any(), "start", gomock.Any(), "elapsed", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Error("pipeline error", "pipeline", "test-2", "error", gomock.Any(), "start", gomock.Any(), "elapsed", gomock.Any()).AnyTimes()

	mockLogger.EXPECT().Info("rabbitmq dial succeed. trying to redeclare queues and subscribers").AnyTimes()
	mockLogger.EXPECT().Info("queues and subscribers redeclared successfully").AnyTimes()

	err = cont.RegisterAll(
		cfg,
		&server.Plugin{},
		&rpcPlugin.Plugin{},
		mockLogger,
		&jobs.Plugin{},
		&resetter.Plugin{},
		&informer.Plugin{},
		&amqp.Plugin{},
	)
	require.NoError(t, err)

	err = cont.Init()
	if err != nil {
		t.Fatal(err)
	}

	ch, err := cont.Serve()
	if err != nil {
		t.Fatal(err)
	}

	sig := make(chan os.Signal, 1)
	signal.Notify(sig, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)

	wg := &sync.WaitGroup{}
	wg.Add(1)

	stopCh := make(chan struct{}, 1)

	go func() {
		defer wg.Done()
		for {
			select {
			case e := <-ch:
				assert.Fail(t, "error", e.Error.Error())
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
			case <-sig:
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
				return
			case <-stopCh:
				// timeout
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
				return
			}
		}
	}()

	time.Sleep(time.Second * 3)
	disableProxy("redial", t)
	time.Sleep(time.Second * 3)

	go func() {
		time.Sleep(time.Second * 5)
		enableProxy("redial", t)
	}()

	t.Run("PushPipelineWhileRedialing-1", pushToPipeErr("test-1"))
	t.Run("PushPipelineWhileRedialing-2", pushToPipeErr("test-2"))

	time.Sleep(time.Second * 15)
	t.Run("PushPipelineWhileRedialing-1", pushToPipe("test-1"))
	t.Run("PushPipelineWhileRedialing-2", pushToPipe("test-2"))

	time.Sleep(time.Second * 5)

	stopCh <- struct{}{}
	wg.Wait()
}

func TestDurabilitySQS(t *testing.T) {
	client := toxiproxy.NewClient("127.0.0.1:8474")

	_, err := client.CreateProxy("redial", "127.0.0.1:19324", "127.0.0.1:9324")
	require.NoError(t, err)
	defer deleteProxy("redial", t)

	cont, err := endure.NewContainer(nil, endure.SetLogLevel(endure.ErrorLevel))
	require.NoError(t, err)

	cfg := &config.Viper{
		Path:   "durability/.rr-sqs-durability-redial.yaml",
		Prefix: "rr",
	}

	controller := gomock.NewController(t)
	mockLogger := mocks.NewMockLogger(controller)

	// general
	mockLogger.EXPECT().Debug("worker destructed", "pid", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Debug("worker constructed", "pid", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Debug("Started RPC service", "address", "tcp://127.0.0.1:6001", "services", gomock.Any()).Times(1)

	mockLogger.EXPECT().Info("pipeline active", "pipeline", "test-1", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)
	mockLogger.EXPECT().Info("pipeline active", "pipeline", "test-2", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)

	mockLogger.EXPECT().Error(gomock.Any(), gomock.Any(), gomock.Any()).AnyTimes()

	mockLogger.EXPECT().Warn("pipeline stopped", "pipeline", "test-1", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)
	mockLogger.EXPECT().Warn("pipeline stopped", "pipeline", "test-2", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)

	// redial errors
	mockLogger.EXPECT().Error("pipeline error", "pipeline", "test-1", "error", gomock.Any(), "start", gomock.Any(), "elapsed", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Error("pipeline error", "pipeline", "test-2", "error", gomock.Any(), "start", gomock.Any(), "elapsed", gomock.Any()).AnyTimes()

	// stop
	mockLogger.EXPECT().Warn("sqs listener stopped").AnyTimes()
	mockLogger.EXPECT().Info("------> job poller stopped <------").AnyTimes()

	err = cont.RegisterAll(
		cfg,
		&server.Plugin{},
		&rpcPlugin.Plugin{},
		mockLogger,
		&jobs.Plugin{},
		&resetter.Plugin{},
		&informer.Plugin{},
		&sqs.Plugin{},
	)
	require.NoError(t, err)

	err = cont.Init()
	if err != nil {
		t.Fatal(err)
	}

	ch, err := cont.Serve()
	if err != nil {
		t.Fatal(err)
	}

	sig := make(chan os.Signal, 1)
	signal.Notify(sig, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)

	wg := &sync.WaitGroup{}
	wg.Add(1)

	stopCh := make(chan struct{}, 1)

	go func() {
		defer wg.Done()
		for {
			select {
			case e := <-ch:
				assert.Fail(t, "error", e.Error.Error())
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
			case <-sig:
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
				return
			case <-stopCh:
				// timeout
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
				return
			}
		}
	}()

	time.Sleep(time.Second * 3)
	disableProxy("redial", t)
	time.Sleep(time.Second * 3)

	go func() {
		time.Sleep(time.Second * 1)
		t.Run("PushPipelineWhileRedialing-1", pushToPipe("test-1"))
		time.Sleep(time.Second)
		t.Run("PushPipelineWhileRedialing-2", pushToPipe("test-2"))
	}()

	time.Sleep(time.Second * 5)
	enableProxy("redial", t)

	t.Run("PushPipelineWhileRedialing-1", pushToPipe("test-1"))
	t.Run("PushPipelineWhileRedialing-2", pushToPipe("test-2"))

	time.Sleep(time.Second * 10)

	stopCh <- struct{}{}
	wg.Wait()
}

func TestDurabilityBeanstalk(t *testing.T) {
	client := toxiproxy.NewClient("127.0.0.1:8474")

	_, err := client.CreateProxy("redial", "127.0.0.1:11400", "127.0.0.1:11300")
	require.NoError(t, err)
	defer deleteProxy("redial", t)

	cont, err := endure.NewContainer(nil, endure.SetLogLevel(endure.ErrorLevel))
	require.NoError(t, err)

	cfg := &config.Viper{
		Path:   "durability/.rr-beanstalk-durability-redial.yaml",
		Prefix: "rr",
	}

	controller := gomock.NewController(t)
	mockLogger := mocks.NewMockLogger(controller)

	// general
	mockLogger.EXPECT().Debug("worker destructed", "pid", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Debug("worker constructed", "pid", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Debug("Started RPC service", "address", "tcp://127.0.0.1:6001", "services", gomock.Any()).Times(1)

	mockLogger.EXPECT().Info("pipeline active", "pipeline", "test-1", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)
	mockLogger.EXPECT().Info("pipeline active", "pipeline", "test-2", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)

	mockLogger.EXPECT().Error(gomock.Any(), gomock.Any(), gomock.Any()).AnyTimes()

	mockLogger.EXPECT().Warn("pipeline stopped", "pipeline", "test-1", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)
	mockLogger.EXPECT().Warn("pipeline stopped", "pipeline", "test-2", "start", gomock.Any(), "elapsed", gomock.Any()).Times(1)

	// redial errors
	mockLogger.EXPECT().Info("beanstalk redial was successful").MinTimes(2)
	mockLogger.EXPECT().Error("pipeline error", "pipeline", "test-1", "error", gomock.Any(), "start", gomock.Any(), "elapsed", gomock.Any()).AnyTimes()
	mockLogger.EXPECT().Error("pipeline error", "pipeline", "test-2", "error", gomock.Any(), "start", gomock.Any(), "elapsed", gomock.Any()).AnyTimes()

	err = cont.RegisterAll(
		cfg,
		&server.Plugin{},
		&rpcPlugin.Plugin{},
		mockLogger,
		&jobs.Plugin{},
		&resetter.Plugin{},
		&informer.Plugin{},
		&beanstalk.Plugin{},
	)
	require.NoError(t, err)

	err = cont.Init()
	if err != nil {
		t.Fatal(err)
	}

	ch, err := cont.Serve()
	if err != nil {
		t.Fatal(err)
	}

	sig := make(chan os.Signal, 1)
	signal.Notify(sig, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)

	wg := &sync.WaitGroup{}
	wg.Add(1)

	stopCh := make(chan struct{}, 1)

	go func() {
		defer wg.Done()
		for {
			select {
			case e := <-ch:
				assert.Fail(t, "error", e.Error.Error())
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
			case <-sig:
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
				return
			case <-stopCh:
				// timeout
				err = cont.Stop()
				if err != nil {
					assert.FailNow(t, "error", err.Error())
				}
				return
			}
		}
	}()

	time.Sleep(time.Second * 3)
	disableProxy("redial", t)
	time.Sleep(time.Second * 3)

	go func() {
		time.Sleep(time.Second * 2)
		t.Run("PushPipelineWhileRedialing-1", pushToPipe("test-1"))
		t.Run("PushPipelineWhileRedialing-2", pushToPipe("test-2"))
	}()

	time.Sleep(time.Second * 5)
	enableProxy("redial", t)

	t.Run("PushPipelineWhileRedialing-1", pushToPipe("test-1"))
	t.Run("PushPipelineWhileRedialing-2", pushToPipe("test-2"))

	time.Sleep(time.Second * 10)

	stopCh <- struct{}{}
	wg.Wait()
}