package rpc

import (
	"context"
	"errors"
	"fmt"
	"io/ioutil"
	"testing"

	mock "github.com/prysmaticlabs/prysm/beacon-chain/blockchain/testing"
	mockSync "github.com/prysmaticlabs/prysm/beacon-chain/sync/initial-sync/testing"
	"github.com/prysmaticlabs/prysm/shared/testutil"
	"github.com/sirupsen/logrus"
	logTest "github.com/sirupsen/logrus/hooks/test"
)

func init() {
	logrus.SetLevel(logrus.DebugLevel)
	logrus.SetOutput(ioutil.Discard)
}

func TestLifecycle_OK(t *testing.T) {
	hook := logTest.NewGlobal()
	rpcService := NewService(context.Background(), &Config{
		Port:                "7348",
		CertFlag:            "alice.crt",
		KeyFlag:             "alice.key",
		SyncService:         &mockSync.Sync{IsSyncing: false},
		BlockReceiver:       &mock.ChainService{},
		AttestationReceiver: &mock.ChainService{},
		HeadFetcher:         &mock.ChainService{},
		StateFeedListener:   &mock.ChainService{},
	})

	rpcService.Start()

	testutil.AssertLogsContain(t, hook, "listening on port")

	rpcService.Stop()

}

func TestRPC_BadEndpoint(t *testing.T) {
	hook := logTest.NewGlobal()

	rpcService := NewService(context.Background(), &Config{
		Port:                "ralph merkle!!!",
		SyncService:         &mockSync.Sync{IsSyncing: false},
		BlockReceiver:       &mock.ChainService{},
		AttestationReceiver: &mock.ChainService{},
		HeadFetcher:         &mock.ChainService{},
		StateFeedListener:   &mock.ChainService{},
	})

	testutil.AssertLogsDoNotContain(t, hook, "Could not listen to port in Start()")
	testutil.AssertLogsDoNotContain(t, hook, "Could not load TLS keys")
	testutil.AssertLogsDoNotContain(t, hook, "Could not serve gRPC")

	rpcService.Start()

	testutil.AssertLogsContain(t, hook, "Could not listen to port in Start()")

	rpcService.Stop()
}

func TestStatus_CredentialError(t *testing.T) {
	credentialErr := errors.New("credentialError")
	s := &Service{credentialError: credentialErr}

	if err := s.Status(); err != s.credentialError {
		t.Errorf("Wanted: %v, got: %v", s.credentialError, s.Status())
	}
}

func TestRPC_InsecureEndpoint(t *testing.T) {
	hook := logTest.NewGlobal()
	rpcService := NewService(context.Background(), &Config{
		Port:                "7777",
		SyncService:         &mockSync.Sync{IsSyncing: false},
		BlockReceiver:       &mock.ChainService{},
		AttestationReceiver: &mock.ChainService{},
		HeadFetcher:         &mock.ChainService{},
		StateFeedListener:   &mock.ChainService{},
	})

	rpcService.Start()

	testutil.AssertLogsContain(t, hook, fmt.Sprint("listening on port"))
	testutil.AssertLogsContain(t, hook, "You are using an insecure gRPC connection")

	rpcService.Stop()
}