package protocol

import (
	"context"
	"fmt"
	"testing"

	"github.com/stretchr/testify/suite"
	"go.uber.org/zap"

	"github.com/status-im/status-go/deprecation"
	"github.com/status-im/status-go/eth-node/crypto"
	"github.com/status-im/status-go/eth-node/types"
	"github.com/status-im/status-go/multiaccounts/settings"
	"github.com/status-im/status-go/protocol/common"
	"github.com/status-im/status-go/protocol/protobuf"
	"github.com/status-im/status-go/protocol/requests"
	v1protocol "github.com/status-im/status-go/protocol/v1"
)

func TestMessengerContactRequestSuite(t *testing.T) {
	suite.Run(t, new(MessengerContactRequestSuite))
}

type MessengerContactRequestSuite struct {
	MessengerBaseTestSuite
}

func (s *MessengerContactRequestSuite) findFirstByContentType(messages []*common.Message, contentType protobuf.ChatMessage_ContentType) *common.Message {
	return FindFirstByContentType(messages, contentType)
}

func (s *MessengerContactRequestSuite) sendContactRequest(request *requests.SendContactRequest, messenger *Messenger) {
	s.logger.Info("sendContactRequest", zap.String("sender", messenger.IdentityPublicKeyString()), zap.String("receiver", request.ID))

	// Send contact request
	resp, err := messenger.SendContactRequest(context.Background(), request)
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check CR and mutual state update messages
	s.Require().Len(resp.Messages(), 2)

	mutualStateUpdate := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_SENT)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().NotNil(mutualStateUpdate.ID)
	s.Require().Equal(mutualStateUpdate.From, messenger.myHexIdentity())
	s.Require().Equal(mutualStateUpdate.ChatId, request.ID)
	s.Require().Equal(mutualStateUpdate.Text, fmt.Sprintf(outgoingMutualStateEventSentDefaultText, request.ID))

	contactRequest := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequest)

	s.Require().Equal(common.ContactRequestStatePending, contactRequest.ContactRequestState)
	s.Require().Equal(request.Message, contactRequest.Text)

	// Check pending notification
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Equal(contactRequest.ID, resp.ActivityCenterNotifications()[0].Message.ID)
	s.Require().Equal(contactRequest.ContactRequestState, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, true)

	// Check contacts
	s.Require().Len(resp.Contacts, 1)
	contact := resp.Contacts[0]
	s.Require().False(contact.mutual())

	// Make sure it's not returned as coming from us
	contactRequests, _, err := messenger.PendingContactRequests("", 10)
	s.Require().NoError(err)
	s.Require().Len(contactRequests, 0)

	// Make sure contact is added on the sender side
	contacts := messenger.AddedContacts()
	s.Require().Len(contacts, 1)
	s.Require().Equal(ContactRequestStateSent, contacts[0].ContactRequestLocalState)
	s.Require().NotNil(contacts[0].DisplayName)

	// Check contact's primary name matches notification's name
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Name, contacts[0].PrimaryName())
}

func (s *MessengerContactRequestSuite) receiveContactRequest(messageText string, theirMessenger *Messenger) *common.Message {
	s.logger.Info("receiveContactRequest", zap.String("receiver", theirMessenger.IdentityPublicKeyString()))

	// Wait for the message to reach its destination
	resp, err := WaitOnMessengerResponse(
		theirMessenger,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) == 1 && len(r.Messages()) >= 2 && len(r.ActivityCenterNotifications()) == 1
		},
		"no messages",
	)

	// Check contact request has been received
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check CR and mutual state update messages
	s.Require().Len(resp.Messages(), 2)

	contactRequest := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequest)

	s.Require().Equal(common.ContactRequestStatePending, contactRequest.ContactRequestState)
	s.Require().Equal(messageText, contactRequest.Text)

	mutualStateUpdate := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_SENT)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().Equal(mutualStateUpdate.From, contactRequest.From)
	s.Require().Equal(mutualStateUpdate.ChatId, contactRequest.From)
	s.Require().Equal(mutualStateUpdate.Text, fmt.Sprintf(incomingMutualStateEventSentDefaultText, contactRequest.From))

	// Check activity center notification is of the right type
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Equal(contactRequest.ID, resp.ActivityCenterNotifications()[0].Message.ID)
	s.Require().Equal(contactRequest.ContactRequestState, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, false)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Accepted, false)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Dismissed, false)

	notifications, err := theirMessenger.ActivityCenterNotifications(ActivityCenterNotificationsRequest{
		Cursor:        "",
		Limit:         10,
		ActivityTypes: []ActivityCenterType{ActivityCenterNotificationTypeContactRequest},
		ReadType:      ActivityCenterQueryParamsReadUnread,
	},
	)
	s.Require().NoError(err)
	s.Require().Len(notifications.Notifications, 1)
	s.Require().Equal(contactRequest.ID, notifications.Notifications[0].Message.ID)
	s.Require().Equal(contactRequest.ContactRequestState, notifications.Notifications[0].Message.ContactRequestState)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	contact := resp.Contacts[0]
	s.Require().Equal(ContactRequestStateReceived, contact.ContactRequestRemoteState)

	// Check contact's primary name matches notification's name
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Name, contact.PrimaryName())

	// Make sure it's the latest pending contact requests
	contactRequests, _, err := theirMessenger.PendingContactRequests("", 10)
	s.Require().NoError(err)
	s.Require().Greater(len(contactRequests), 0)
	s.Require().Equal(contactRequests[0].ID, contactRequest.ID)

	return contactRequest
}

// This function partially logs given MessengerResponse with description.
// This is helpful for testing response content during long tests.
// Logged contents: Messages, Contacts, ActivityCenterNotifications
func (s *MessengerContactRequestSuite) logResponse(response *MessengerResponse, description string) {
	s.logger.Debug("MessengerResponse", zap.String("description", description))

	for i, message := range response.Messages() {
		s.logger.Debug("message",
			zap.Int("index", i),
			zap.String("Text", message.Text),
			zap.Any("ContentType", message.ContentType),
		)
	}

	for i, contact := range response.Contacts {
		s.logger.Debug("contact",
			zap.Int("index", i),
			zap.Bool("Blocked", contact.Blocked),
			zap.Bool("Removed", contact.Removed),
			zap.Any("crRemoteState", contact.ContactRequestLocalState),
			zap.Any("crLocalState", contact.ContactRequestRemoteState),
		)
	}

	for i, notification := range response.ActivityCenterNotifications() {
		messageText := ""
		if notification.Message != nil {
			messageText = notification.Message.Text
		}
		s.logger.Debug("acNotification",
			zap.Int("index", i),
			zap.Any("id", notification.ID),
			zap.Any("Type", notification.Type),
			zap.String("Message", messageText),
			zap.String("Name", notification.Name),
			zap.String("Author", notification.Author),
		)
	}
}

func (s *MessengerContactRequestSuite) acceptContactRequest(
	contactRequest *common.Message, sender *Messenger, receiver *Messenger) {
	s.logger.Info("acceptContactRequest",
		zap.String("sender", sender.IdentityPublicKeyString()),
		zap.String("receiver", receiver.IdentityPublicKeyString()))

	// Accept contact request, receiver side
	resp, err := receiver.AcceptContactRequest(context.Background(), &requests.AcceptContactRequest{ID: types.Hex2Bytes(contactRequest.ID)})
	s.Require().NoError(err)

	// Chack updated contact request message and mutual state update
	s.Require().NotNil(resp)
	s.Require().Len(resp.Messages(), 2)

	contactRequestMsg := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequestMsg)

	mutualStateUpdate := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_ACCEPTED)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().Equal(contactRequestMsg.ID, contactRequest.ID)
	s.Require().Equal(common.ContactRequestStateAccepted, contactRequestMsg.ContactRequestState)

	s.Require().Equal(mutualStateUpdate.ChatId, contactRequestMsg.From)
	s.Require().Equal(mutualStateUpdate.From, contactRequestMsg.ChatId)
	s.Require().Equal(mutualStateUpdate.Text, fmt.Sprintf(outgoingMutualStateEventAcceptedDefaultText, contactRequestMsg.From))

	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].ID.String(), contactRequest.ID)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().True(resp.Contacts[0].mutual())

	// Check contact's primary name matches notification's name
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Name, resp.Contacts[0].PrimaryName())

	// Check we have active chat in the response
	s.Require().Len(resp.Chats(), 1)
	s.Require().True(resp.Chats()[0].Active)

	// Make sure the sender is added to our contacts
	contacts := receiver.AddedContacts()
	s.Require().Len(contacts, 1)

	// Make sure we consider them a mutual contact, receiver side
	mutualContacts := receiver.MutualContacts()
	s.Require().Len(mutualContacts, 1)

	// Wait for the message to reach its destination
	resp, err = WaitOnMessengerResponse(sender,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) == 1 && len(r.Messages()) == 2
		},
		"contact request acceptance not received",
	)
	s.logResponse(resp, "acceptContactRequest")
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check activity center notification is of the right type
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, true)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Accepted, true)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Dismissed, false)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)

	// Make sure the message is updated, sender side
	s.Require().Len(resp.Messages(), 2)

	contactRequestMsg = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequestMsg)

	mutualStateUpdate = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_ACCEPTED)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().Equal(contactRequest.ID, contactRequestMsg.ID)
	s.Require().Equal(contactRequest.Text, contactRequestMsg.Text)
	s.Require().Equal(common.ContactRequestStateAccepted, contactRequestMsg.ContactRequestState)

	s.Require().Equal(mutualStateUpdate.From, contactRequestMsg.ChatId)
	s.Require().Equal(mutualStateUpdate.ChatId, contactRequestMsg.ChatId)
	s.Require().Equal(mutualStateUpdate.Text, fmt.Sprintf(incomingMutualStateEventAcceptedDefaultText, contactRequestMsg.ChatId))

	// Make sure we consider them a mutual contact, sender side
	mutualContacts = s.m.MutualContacts()
	s.Require().Len(mutualContacts, 1)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	contact := resp.Contacts[0]
	s.Require().True(contact.mutual())

	// Check contact's primary name matches notification's name
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Name, contact.PrimaryName())

	// Sender's side chat should be active after the accepting the CR
	chat, ok := s.m.allChats.Load(contact.ID)
	s.Require().True(ok)
	s.Require().NotNil(chat)
	s.Require().True(chat.Active)

	// Receiver's side chat should be also active after the accepting the CR
	myID := types.EncodeHex(crypto.FromECDSAPub(&s.m.identity.PublicKey))
	chat, ok = receiver.allChats.Load(myID)
	s.Require().True(ok)
	s.Require().NotNil(chat)
	s.Require().True(chat.Active)
}

func (s *MessengerContactRequestSuite) checkMutualContact(messenger *Messenger, contactPublicKey string) {
	contacts := messenger.AddedContacts()
	s.Require().Len(contacts, 1)
	contact := contacts[0]
	s.Require().Equal(contactPublicKey, contact.ID)
	s.Require().True(contact.mutual())
}

func (s *MessengerContactRequestSuite) createContactRequest(contactPublicKey string, messageText string) *requests.SendContactRequest {
	return &requests.SendContactRequest{
		ID:      contactPublicKey,
		Message: messageText,
	}
}

func (s *MessengerContactRequestSuite) declineContactRequest(contactRequest *common.Message, theirMessenger *Messenger) {
	// Dismiss contact request, receiver side
	resp, err := theirMessenger.DeclineContactRequest(context.Background(), &requests.DeclineContactRequest{ID: types.Hex2Bytes(contactRequest.ID)})
	s.Require().NoError(err)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().Equal(ContactRequestStateDismissed, resp.Contacts[0].ContactRequestLocalState)

	// Make sure the message is updated
	s.Require().NotNil(resp)
	s.Require().Len(resp.Messages(), 1)
	s.Require().Equal(resp.Messages()[0].ID, contactRequest.ID)
	s.Require().Equal(common.ContactRequestStateDismissed, resp.Messages()[0].ContactRequestState)

	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].ID.String(), contactRequest.ID)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, true)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Accepted, false)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Dismissed, true)
	s.Require().Equal(common.ContactRequestStateDismissed, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)

	// Check contact's primary name matches notification's name
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Name, resp.Contacts[0].PrimaryName())

	// Make sure the sender is not added to our contacts
	contacts := theirMessenger.AddedContacts()
	s.Require().Len(contacts, 0)
}

func (s *MessengerContactRequestSuite) retractContactRequest(contactID string, theirMessenger *Messenger) {
	resp, err := s.m.RetractContactRequest(&requests.RetractContactRequest{ID: types.Hex2Bytes(contactID)})
	s.Require().NoError(err)
	s.Require().NotNil(resp)
	s.Require().Len(resp.Contacts, 1)
	s.Require().False(resp.Contacts[0].hasAddedUs())
	s.Require().False(resp.Contacts[0].added())

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestLocalState)
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestRemoteState)

	// Check outgoing mutual state message
	s.Require().Len(resp.Messages(), 1)
	mutualStateUpdate := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_REMOVED)
	s.Require().NotNil(mutualStateUpdate)

	myID := types.EncodeHex(crypto.FromECDSAPub(&s.m.identity.PublicKey))
	s.Require().Equal(mutualStateUpdate.From, myID)
	s.Require().Equal(mutualStateUpdate.ChatId, contactID)
	s.Require().Equal(mutualStateUpdate.Text, fmt.Sprintf(outgoingMutualStateEventRemovedDefaultText, contactID))

	// Wait for the message to reach its destination
	resp, err = WaitOnMessengerResponse(
		theirMessenger,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) > 0 && len(r.ActivityCenterNotifications()) == 1
		},
		"no messages",
	)
	s.Require().NoError(err)
	s.Require().NotNil(resp)
	s.Require().Len(resp.Contacts, 1)

	s.Require().Equal(myID, resp.Contacts[0].ID)

	s.Require().False(resp.Contacts[0].added())
	s.Require().False(resp.Contacts[0].hasAddedUs())
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestLocalState)
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestRemoteState)

	// Check pending notification
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRemoved, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, false)

	// Check incoming mutual state message
	s.Require().Len(resp.Messages(), 1)
	mutualStateUpdate = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_REMOVED)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().Equal(mutualStateUpdate.From, myID)
	s.Require().Equal(mutualStateUpdate.ChatId, myID)
	s.Require().Equal(mutualStateUpdate.Text, fmt.Sprintf(incomingMutualStateEventRemovedDefaultText, myID))
}

func (s *MessengerContactRequestSuite) syncInstallationContactV2FromContact(contact *Contact) protobuf.SyncInstallationContactV2 {
	return protobuf.SyncInstallationContactV2{
		LastUpdatedLocally:        contact.LastUpdatedLocally,
		LastUpdated:               contact.LastUpdated,
		Id:                        contact.ID,
		DisplayName:               contact.DisplayName,
		EnsName:                   contact.EnsName,
		LocalNickname:             contact.LocalNickname,
		Added:                     contact.added(),
		Blocked:                   contact.Blocked,
		Muted:                     false,
		HasAddedUs:                contact.hasAddedUs(),
		Removed:                   contact.Removed,
		ContactRequestLocalState:  int64(contact.ContactRequestLocalState),
		ContactRequestRemoteState: int64(contact.ContactRequestRemoteState),
		ContactRequestRemoteClock: int64(contact.ContactRequestRemoteClock),
		ContactRequestLocalClock:  int64(contact.ContactRequestLocalClock),
		VerificationStatus:        int64(contact.VerificationStatus),
		TrustStatus:               int64(contact.TrustStatus),
	}
}

func (s *MessengerContactRequestSuite) TestReceiveAndAcceptContactRequest() { //nolint: unused
	messageText := "hello!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, s.m)
	contactRequest := s.receiveContactRequest(messageText, theirMessenger)
	s.acceptContactRequest(contactRequest, s.m, theirMessenger)
}

func (s *MessengerContactRequestSuite) TestReceiveAndDismissContactRequest() {
	messageText := "hello!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, s.m)
	contactRequest := s.receiveContactRequest(messageText, theirMessenger)
	s.declineContactRequest(contactRequest, theirMessenger)
}

func (s *MessengerContactRequestSuite) TestReceiveAcceptAndRetractContactRequest() { //nolint: unused
	messageText := "hello!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	s.Require().NoError(theirMessenger.settings.SaveSettingField(settings.MutualContactEnabled, true))

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, s.m)
	contactRequest := s.receiveContactRequest(messageText, theirMessenger)
	s.acceptContactRequest(contactRequest, s.m, theirMessenger)
	s.retractContactRequest(contactID, theirMessenger)
}

// The scenario tested is as follow:
//  1. Repeat 5 times:
//     2.1) Alice sends a contact request to Bob
//     2.2) Bob accepts the contact request
//     2.3) Alice removes bob from contacts
func (s *MessengerContactRequestSuite) TestAcceptCRRemoveAndRepeat() {
	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))

	for i := 0; i < 5; i++ {
		messageText := fmt.Sprintf("hello %d", i)
		request := &requests.SendContactRequest{
			ID:      contactID,
			Message: messageText,
		}
		s.sendContactRequest(request, s.m)
		contactRequest := s.receiveContactRequest(messageText, theirMessenger)
		s.acceptContactRequest(contactRequest, s.m, theirMessenger)
		s.retractContactRequest(contactID, theirMessenger)
	}
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob declines the contact request
// 3) Alice fails to send a new contact request to Bob
func (s *MessengerContactRequestSuite) TestAliceTriesToSpamBobWithContactRequests() {
	messageTextAlice := "You wanna play with fire, Bobby?!"
	alice := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to Bob
	request := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageTextAlice,
	}
	s.sendContactRequest(request, alice)

	contactRequest := s.receiveContactRequest(messageTextAlice, bob)
	s.Require().NotNil(contactRequest)

	// Bob declines the contact request
	s.declineContactRequest(contactRequest, bob)

	// Alice sends a new contact request
	resp, err := alice.SendContactRequest(context.Background(), request)
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check CR and mutual state update messages
	s.Require().Len(resp.Messages(), 2)

	contactRequest = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequest)

	s.Require().Equal(common.ContactRequestStatePending, contactRequest.ContactRequestState)
	s.Require().Equal(request.Message, contactRequest.Text)

	// We should not receive a CR from a rejected contact
	_, err = WaitOnMessengerResponse(
		bob,
		func(r *MessengerResponse) bool {
			return len(r.Messages()) > 0 &&
				s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST) != nil
		},
		"no messages",
	)
	s.Require().Error(err)
	s.Require().ErrorContains(err, "no messages")
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob accepts the contact
// 3) Bob accepts the contact request (again!)
// 4) No extra mesages on Alice's side
func (s *MessengerContactRequestSuite) TestAliceSeesOnlyOneAcceptFromBob() {
	messageTextAlice := "You wanna play with fire, Bobby?!"
	alice := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to Bob
	request := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageTextAlice,
	}
	s.sendContactRequest(request, alice)

	contactRequest := s.receiveContactRequest(messageTextAlice, bob)
	s.Require().NotNil(contactRequest)

	// Bob accepts the contact request
	s.acceptContactRequest(contactRequest, alice, bob)

	// Accept contact request again
	_, err = bob.AcceptContactRequest(context.Background(), &requests.AcceptContactRequest{ID: types.Hex2Bytes(contactRequest.ID)})
	s.Require().NoError(err)

	// Check we don't have extra messages on Alice's side
	resp, err := WaitOnMessengerResponse(alice,
		func(r *MessengerResponse) bool {
			return len(r.ActivityCenterNotifications()) == 1 && len(r.Messages()) == 1
		},
		"contact request acceptance not received",
	)
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check activity center notification is of the right type
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, true)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Accepted, true)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Dismissed, false)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)

	// Make sure the message is updated, sender side
	s.Require().Len(resp.Messages(), 1)

	contactRequest = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequest)

	s.Require().Equal(common.ContactRequestStateAccepted, contactRequest.ContactRequestState)
	s.Require().Equal(request.Message, contactRequest.Text)
}

func (s *MessengerContactRequestSuite) TestReceiveAndAcceptContactRequestTwice() { //nolint: unused
	messageText := "hello!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, s.m)
	contactRequest := s.receiveContactRequest(messageText, theirMessenger)
	s.acceptContactRequest(contactRequest, s.m, theirMessenger)

	// Resend contact request with higher clock value
	resp, err := s.m.SendContactRequest(context.Background(), request)
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check CR and mutual state update messages
	s.Require().Len(resp.Messages(), 2)

	contactRequest = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequest)

	s.Require().Equal(common.ContactRequestStateAccepted, contactRequest.ContactRequestState)
	s.Require().Equal(request.Message, contactRequest.Text)

	// We should not receive a CR from a mutual contact
	_, err = WaitOnMessengerResponse(
		theirMessenger,
		func(r *MessengerResponse) bool {
			return len(r.Messages()) > 0 &&
				s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST) != nil
		},
		"no messages",
	)
	s.Require().Error(err)
	s.Require().ErrorContains(err, "no messages")
}

func (s *MessengerContactRequestSuite) TestAcceptLatestContactRequestForContact() {
	messageText := "hello!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, s.m)
	contactRequest := s.receiveContactRequest(messageText, theirMessenger)

	// Accept latest contact request, receiver side
	myID := types.EncodeHex(crypto.FromECDSAPub(&s.m.identity.PublicKey))
	resp, err := theirMessenger.AcceptLatestContactRequestForContact(context.Background(), &requests.AcceptLatestContactRequestForContact{ID: types.Hex2Bytes(myID)})
	s.Require().NoError(err)

	// Make sure the message is updated
	s.Require().NotNil(resp)
	s.Require().Len(resp.Messages(), 2)

	contactRequestMsg := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequestMsg)

	mutualStateUpdate := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_ACCEPTED)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().Equal(contactRequestMsg.ID, contactRequest.ID)
	s.Require().Equal(common.ContactRequestStateAccepted, contactRequestMsg.ContactRequestState)

	s.Require().Equal(mutualStateUpdate.From, contactRequest.ChatId)
	s.Require().Equal(mutualStateUpdate.ChatId, contactRequest.From)

	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].ID.String(), contactRequest.ID)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().True(resp.Contacts[0].mutual())

	// Make sure the sender is added to our contacts
	contacts := theirMessenger.AddedContacts()
	s.Require().Len(contacts, 1)

	// Make sure we consider them a mutual contact, receiver side
	mutualContacts := theirMessenger.MutualContacts()
	s.Require().Len(mutualContacts, 1)

	// Wait for the message to reach its destination
	resp, err = WaitOnMessengerResponse(
		s.m,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) == 1 && len(r.Messages()) == 2 && len(r.ActivityCenterNotifications()) == 1
		},
		"no messages",
	)
	s.Require().NoError(err)

	// Make sure the message is updated, sender side
	s.Require().NotNil(resp)

	s.Require().Len(resp.Messages(), 2)

	contactRequestMsg = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequestMsg)

	mutualStateUpdate = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_SYSTEM_MESSAGE_MUTUAL_EVENT_ACCEPTED)
	s.Require().NotNil(mutualStateUpdate)

	s.Require().Equal(common.ContactRequestStateAccepted, contactRequestMsg.ContactRequestState)

	s.Require().Equal(mutualStateUpdate.From, contactRequest.ChatId)
	s.Require().Equal(mutualStateUpdate.ChatId, contactRequest.ChatId)

	// Check activity center notification is of the right type
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)

	// Make sure we consider them a mutual contact, sender side
	mutualContacts = s.m.MutualContacts()
	s.Require().Len(mutualContacts, 1)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().True(resp.Contacts[0].mutual())
}

func (s *MessengerContactRequestSuite) TestDismissLatestContactRequestForContact() {
	messageText := "hello!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, s.m)
	contactRequest := s.receiveContactRequest(messageText, theirMessenger)

	// Dismiss latest contact request, receiver side
	myID := types.EncodeHex(crypto.FromECDSAPub(&s.m.identity.PublicKey))
	resp, err := theirMessenger.DismissLatestContactRequestForContact(context.Background(), &requests.DismissLatestContactRequestForContact{ID: types.Hex2Bytes(myID)})
	s.Require().NoError(err)

	// Make sure the message is updated
	s.Require().NotNil(resp)
	s.Require().Len(resp.Messages(), 1)
	s.Require().Equal(resp.Messages()[0].ID, contactRequest.ID)
	s.Require().Equal(common.ContactRequestStateDismissed, resp.Messages()[0].ContactRequestState)

	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].ID.String(), contactRequest.ID)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(common.ContactRequestStateDismissed, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)
}

func (s *MessengerContactRequestSuite) TestPairedDevicesRemoveContact() {
	messageText := "hello!"

	alice1 := s.m
	alice2, err := newMessengerWithKey(s.shh, s.m.identity, s.logger, nil)
	s.Require().NoError(err)

	_, err = alice2.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, alice2)

	prepAliceMessengersForPairing(&s.Suite, alice1, alice2)

	PairDevices(&s.Suite, alice1, alice2)
	PairDevices(&s.Suite, alice2, alice1)

	bob := s.newMessenger()
	_, err = bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	// Alice sends a contact request to bob
	contactID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageText,
	}
	s.sendContactRequest(request, alice1)
	contactRequest := s.receiveContactRequest(messageText, bob)
	s.acceptContactRequest(contactRequest, alice1, bob)

	// Wait for the message to reach its destination
	resp, err := WaitOnMessengerResponse(
		alice2,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) > 0
		},
		"no messages",
	)
	s.Require().NoError(err)

	// Make sure we consider them a mutual contact, sender side
	mutualContacts := alice2.MutualContacts()
	s.Require().Len(mutualContacts, 1)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().True(resp.Contacts[0].mutual())

	s.retractContactRequest(contactID, bob)

	// Check on alice2 side
	resp, err = WaitOnMessengerResponse(
		alice2,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) > 0
		},
		"no messages",
	)
	s.Require().NoError(err)
	s.Require().NotNil(resp)
	s.Require().Len(resp.Contacts, 1)

	// Check the contact state is correctly set
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestLocalState)
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestRemoteState)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob accepts the contact request
// 3) Alice restores state on a different device
// 4) Alice sends a contact request to bob
// Bob will need to help Alice recover her state, since as far as he can see
// that's an already accepted contact request
func (s *MessengerContactRequestSuite) TestAliceRecoverStateSendContactRequest() {
	messageText := "hello!"

	alice1 := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to bob
	request := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageText,
	}
	s.sendContactRequest(request, alice1)

	contactRequest := s.receiveContactRequest(messageText, bob)
	s.Require().NotNil(contactRequest)

	// Bob accepts the contact request
	s.acceptContactRequest(contactRequest, alice1, bob)

	// Alice resets her device
	alice2, err := newMessengerWithKey(s.shh, s.m.identity, s.logger, nil)
	s.Require().NoError(err)

	_, err = alice2.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, alice2)

	// adds bob again to her device
	s.sendContactRequest(request, alice2)

	// Wait for the message to reach its destination
	_, err = WaitOnMessengerResponse(
		bob,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) > 0
		},
		"no messages",
	)
	s.Require().NoError(err)

	// Bob should be a mutual contact with alice, nothing has changed
	s.Require().Len(bob.MutualContacts(), 1)

	// Alice retrieves her messages, she should have been notified by
	// dear bobby that they were contacts
	resp, err := WaitOnMessengerResponse(
		alice2,
		func(r *MessengerResponse) bool {
			return len(r.Contacts) > 0
		},
		"no messages",
	)
	s.Require().NoError(err)
	s.Require().NotNil(resp)
	s.Require().Len(resp.Contacts, 1)

	// Check the contact state is correctly set
	s.Require().True(resp.Contacts[0].mutual())
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob accepts the contact request
// 3) Alice restores state on a different device
// 4) Bob sends a message to alice
// Alice will show a contact request from bob
func (s *MessengerContactRequestSuite) TestAliceRecoverStateReceiveContactRequest() {
	messageText := "hello!"

	alice1 := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to bob
	request := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageText,
	}
	s.sendContactRequest(request, alice1)

	contactRequest := s.receiveContactRequest(messageText, bob)
	s.Require().NotNil(contactRequest)

	// Bob accepts the contact request
	s.acceptContactRequest(contactRequest, alice1, bob)

	// Alice resets her device
	alice2, err := newMessengerWithKey(s.shh, s.m.identity, s.logger, nil)
	s.Require().NoError(err)

	_, err = alice2.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, alice2)

	// We want to facilitate the discovery of the x3dh bundl here, since bob does not know about alice device

	alice2Bundle, err := alice2.encryptor.GetBundle(alice2.identity)
	s.Require().NoError(err)

	_, err = bob.encryptor.ProcessPublicBundle(bob.identity, alice2Bundle)
	s.Require().NoError(err)

	// Bob sends a chat message to alice

	var chat Chat
	chats := bob.Chats()
	for i, c := range chats {
		if c.ID == alice1.myHexIdentity() && c.OneToOne() {
			chat = *chats[i]
		}
	}
	s.Require().NotNil(chat)

	inputMessage := buildTestMessage(chat)
	_, err = bob.SendChatMessage(context.Background(), inputMessage)
	s.NoError(err)

	// Alice retrieves the chat message, it should be
	resp, err := WaitOnMessengerResponse(
		alice2,
		func(r *MessengerResponse) bool {
			return len(r.ActivityCenterNotifications()) == 1
		},
		"no messages",
	)
	s.Require().NoError(err)
	s.Require().NotNil(resp)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Len(resp.Contacts, 1)

	// Check the contact state is correctly set
	s.Require().Equal(ContactRequestStateNone, resp.Contacts[0].ContactRequestLocalState)
	s.Require().Equal(ContactRequestStateReceived, resp.Contacts[0].ContactRequestRemoteState)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob accepts the contact request
// 3) Bob goes offline
// 4) Alice retracts the contact request
// 5) Alice adds bob back to her contacts
// 6) Bob goes online, they receive 4 and 5 in the correct order
func (s *MessengerContactRequestSuite) TestAliceOfflineRetractsAndAddsCorrectOrder() {
	messageText := "hello!"

	alice1 := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to bob
	request := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageText,
	}
	s.sendContactRequest(request, alice1)

	contactRequest := s.receiveContactRequest(messageText, bob)
	s.Require().NotNil(contactRequest)

	// Bob accepts the contact request
	s.acceptContactRequest(contactRequest, alice1, bob)

	// Alice removes Bob from contacts
	_, err = alice1.RetractContactRequest(&requests.RetractContactRequest{ID: types.Hex2Bytes(bob.myHexIdentity())})
	s.Require().NoError(err)

	// Adds bob again to her device
	s.sendContactRequest(request, alice1)

	// Wait for the message to reach its destination
	_, err = WaitOnMessengerResponse(
		bob,
		func(r *MessengerResponse) bool {
			return len(r.ActivityCenterNotifications()) > 0
		},
		"no messages",
	)
	s.Require().NoError(err)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob accepts the contact request
// 3) Bob goes offline
// 4) Alice retracts the contact request
// 5) Alice adds bob back to her contacts
// 6) Bob goes online, they receive 4 and 5 in the wrong order
func (s *MessengerContactRequestSuite) TestAliceOfflineRetractsAndAddsWrongOrder() {
	messageText := "hello!"

	alice1 := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to bob
	request := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageText,
	}
	s.sendContactRequest(request, alice1)

	contactRequest := s.receiveContactRequest(messageText, bob)
	s.Require().NotNil(contactRequest)

	// Bob accepts the contact request
	s.acceptContactRequest(contactRequest, alice1, bob)

	// Alice removes Bob from contacts
	_, err = alice1.RetractContactRequest(&requests.RetractContactRequest{ID: types.Hex2Bytes(bob.myHexIdentity())})
	s.Require().NoError(err)

	// Adds bob again to her device
	s.sendContactRequest(request, alice1)

	// Get alice perspective of bob
	bobFromAlice := alice1.AddedContacts()[0]

	// Get bob perspective of alice
	aliceFromBob := bob.MutualContacts()[0]

	s.Require().NotNil(bobFromAlice)
	s.Require().NotNil(aliceFromBob)

	// We can't simulate out-of-order messages easily, so we need to do
	// things manually here
	result := aliceFromBob.ContactRequestPropagatedStateReceived(bobFromAlice.ContactRequestPropagatedState())
	s.Require().True(result.newContactRequestReceived)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob accepts the contact request
// 3) Alice removes Bob from contacts
// 4) Make sure Alice and Bob are not mutual contacts
// 5) Alice sends new contact request
// 6) Bob accepts new contact request
func (s *MessengerContactRequestSuite) TestAliceResendsContactRequestAfterRemovingBobFromContacts() {
	messageTextFirst := "hello 1!"

	theirMessenger := s.newMessenger()
	_, err := theirMessenger.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, theirMessenger)

	contactID := types.EncodeHex(crypto.FromECDSAPub(&theirMessenger.identity.PublicKey))

	// Alice sends a contact request to Bob
	request := &requests.SendContactRequest{
		ID:      contactID,
		Message: messageTextFirst,
	}
	s.sendContactRequest(request, s.m)

	// Bob accepts the contact request
	contactRequest := s.receiveContactRequest(messageTextFirst, theirMessenger)
	s.Require().NotNil(contactRequest)
	s.acceptContactRequest(contactRequest, s.m, theirMessenger)

	// Alice removes Bob from contacts
	s.retractContactRequest(contactID, theirMessenger)

	// Send new contact request
	messageTextSecond := "hello 2!"

	// Alice sends new contact request
	request = &requests.SendContactRequest{
		ID:      contactID,
		Message: messageTextSecond,
	}
	s.sendContactRequest(request, s.m)

	// Make sure bob and alice are not mutual after sending CR
	s.Require().Len(s.m.MutualContacts(), 0)
	s.Require().Len(theirMessenger.MutualContacts(), 0)

	// Bob accepts new contact request
	contactRequest = s.receiveContactRequest(messageTextSecond, theirMessenger)
	s.Require().NotNil(contactRequest)
	s.acceptContactRequest(contactRequest, s.m, theirMessenger)

	// Make sure bob and alice are not mutual after sending CR
	s.Require().Len(s.m.MutualContacts(), 1)
	s.Require().Len(theirMessenger.MutualContacts(), 1)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob declines the contact request from Alice
// 3) Bob sends a contact request to Alice
// 4) Alice and Bob are mutual contacts (because Alice's CR is "pending" on her side), Both CRs are accepted
func (s *MessengerContactRequestSuite) TestBobSendsContactRequestAfterDecliningOneFromAlice() {
	messageTextAlice := "hello, Bobby!"

	alice := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to bob
	requestFromAlice := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageTextAlice,
	}
	s.sendContactRequest(requestFromAlice, alice)

	contactRequest := s.receiveContactRequest(messageTextAlice, bob)
	s.Require().NotNil(contactRequest)

	// Bob declines the contact request
	s.declineContactRequest(contactRequest, bob)

	messageTextBob := "hello, Alice!"

	aliceID := types.EncodeHex(crypto.FromECDSAPub(&alice.identity.PublicKey))

	// Bob sends a contact request to Alice
	requestFromBob := &requests.SendContactRequest{
		ID:      aliceID,
		Message: messageTextBob,
	}

	// Send contact request
	resp, err := bob.SendContactRequest(context.Background(), requestFromBob)
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check CR message, it should be accepted
	s.Require().Len(resp.Messages(), 2)

	contactRequest = s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequest)

	s.Require().Equal(common.ContactRequestStateAccepted, contactRequest.ContactRequestState)
	s.Require().Equal(requestFromBob.Message, contactRequest.Text)

	// Check pending notification
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(ActivityCenterNotificationTypeContactRequest, resp.ActivityCenterNotifications()[0].Type)
	s.Require().Equal(contactRequest.ID, resp.ActivityCenterNotifications()[0].Message.ID)
	s.Require().Equal(contactRequest.ContactRequestState, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Read, true)

	// Check contacts Bob's side
	s.Require().Len(resp.Contacts, 1)
	contact := resp.Contacts[0]
	s.Require().True(contact.mutual())
}

func (s *MessengerContactRequestSuite) TestBuildContact() {
	contactKey, err := crypto.GenerateKey()
	s.Require().NoError(err)
	contactID := types.EncodeHex(crypto.FromECDSAPub(&contactKey.PublicKey))

	contact, err := s.m.BuildContact(&requests.BuildContact{PublicKey: contactID})
	s.Require().NoError(err)

	s.Require().Equal(contact.EnsName, "")
	s.Require().False(contact.ENSVerified)

	contact, err = s.m.BuildContact(&requests.BuildContact{PublicKey: contactID, ENSName: "foobar"})
	s.Require().NoError(err)

	s.Require().Equal(contact.EnsName, "foobar")
	s.Require().True(contact.ENSVerified)
}

func (s *MessengerContactRequestSuite) TestReceiveAcceptAndRetractContactRequestOutOfOrder() {
	message := protobuf.ChatMessage{
		Clock:       4,
		Timestamp:   1,
		Text:        "some text",
		ChatId:      common.PubkeyToHex(&s.m.identity.PublicKey),
		MessageType: protobuf.MessageType_ONE_TO_ONE,
		ContentType: protobuf.ChatMessage_CONTACT_REQUEST,
	}

	contactKey, err := crypto.GenerateKey()
	s.Require().NoError(err)

	contact, err := BuildContactFromPublicKey(&contactKey.PublicKey)
	s.Require().NoError(err)

	state := s.m.buildMessageState()

	state.CurrentMessageState = &CurrentMessageState{
		PublicKey:        &contactKey.PublicKey,
		MessageID:        "0xa",
		StatusMessage:    &v1protocol.StatusMessage{TransportLayer: v1protocol.TransportLayer{Message: &types.Message{Timestamp: 1}}, ApplicationLayer: v1protocol.ApplicationLayer{ID: []byte("test-id")}},
		Contact:          contact,
		WhisperTimestamp: 1,
	}

	response := state.Response
	err = s.m.HandleChatMessage(state, &message, nil, false)
	s.Require().NoError(err)
	s.Require().Len(response.ActivityCenterNotifications(), 1)
	contacts := s.m.Contacts()
	s.Require().Len(contacts, 1)
	s.Require().Equal(ContactRequestStateReceived, contacts[0].ContactRequestRemoteState)

	retract := protobuf.RetractContactRequest{
		Clock: 2,
	}
	err = s.m.HandleRetractContactRequest(state, &retract, nil)
	s.Require().NoError(err)

	// Nothing should have changed
	contacts = s.m.Contacts()
	s.Require().Len(contacts, 1)
	s.Require().Equal(ContactRequestStateReceived, contacts[0].ContactRequestRemoteState)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob receives CR from Alice
// 3) Bob resets his device
// 4) Bob restores Alice's contact from backup, CR is created
// 5) Bob succesefully accepts restored contact request
// 6) Alice get notified properly
func (s *MessengerContactRequestSuite) TestBobRestoresIncomingContactRequestFromSyncInstallationContactV2() {
	messageText := "hello, Bobby!"

	alice := s.m

	bob1 := s.newMessenger()
	_, err := bob1.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob1)

	aliceID := types.EncodeHex(crypto.FromECDSAPub(&alice.identity.PublicKey))
	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob1.identity.PublicKey))

	// Alice sends a contact request to bob
	requestFromAlice := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageText,
	}
	s.sendContactRequest(requestFromAlice, alice)

	// Bob receives CR from Alice
	contactRequest := s.receiveContactRequest(messageText, bob1)
	s.Require().NotNil(contactRequest)

	// Bob resets his device
	bob2, err := newMessengerWithKey(s.shh, bob1.identity, s.logger, nil)
	s.Require().NoError(err)

	_, err = bob2.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob2)

	// Get bob perspective of alice for backup
	aliceFromBob := bob1.Contacts()[0]
	state := bob2.buildMessageState()

	// Restore alice's contact from backup
	sync := s.syncInstallationContactV2FromContact(aliceFromBob)
	err = bob2.HandleSyncInstallationContactV2(state, &sync, nil)
	s.Require().NoError(err)

	// Accept latest CR for a contact
	resp, err := bob2.AcceptLatestContactRequestForContact(context.Background(), &requests.AcceptLatestContactRequestForContact{ID: types.Hex2Bytes(aliceID)})
	s.Require().NoError(err)

	// Make sure the message is updated
	s.Require().NotNil(resp)
	s.Require().Len(resp.Messages(), 2)

	contactRequestMsg := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequestMsg)

	// NOTE: We don't restore CR message
	// s.Require().Equal(resp.Messages()[0].ID, contactRequest.ID)
	s.Require().Equal(common.ContactRequestStateAccepted, contactRequestMsg.ContactRequestState)

	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().True(resp.Contacts[0].mutual())

	// Make sure the sender is added to our contacts
	contacts := bob2.AddedContacts()
	s.Require().Len(contacts, 1)

	// Make sure we consider them a mutual contact, receiver side
	mutualContacts := bob2.MutualContacts()
	s.Require().Len(mutualContacts, 1)
}

// The scenario tested is as follow:
// 1) Alice sends a contact request to Bob
// 2) Bob receives CR from Alice
// 3) Alice resets her device
// 4) Alice restores Bob's contact from backup, CR is created
// 5) Bob accepts contact request
// 6) Alice get notified properly
func (s *MessengerContactRequestSuite) TestAliceRestoresOutgoingContactRequestFromSyncInstallationContactV2() {
	messageText := "hello, Bobby!"

	alice1 := s.m

	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)

	aliceID := types.EncodeHex(crypto.FromECDSAPub(&alice1.identity.PublicKey))
	bobID := types.EncodeHex(crypto.FromECDSAPub(&bob.identity.PublicKey))

	// Alice sends a contact request to bob
	requestFromAlice := &requests.SendContactRequest{
		ID:      bobID,
		Message: messageText,
	}
	s.sendContactRequest(requestFromAlice, alice1)

	// Bob receives CR from Alice
	contactRequest := s.receiveContactRequest(messageText, bob)
	s.Require().NotNil(contactRequest)

	// Bob resets his device
	alice2, err := newMessengerWithKey(s.shh, alice1.identity, s.logger, nil)
	s.Require().NoError(err)

	_, err = alice2.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, alice2)

	// Get bob perspective of alice for backup
	bobFromAlice := alice1.Contacts()[0]
	state := alice2.buildMessageState()

	// Restore alice's contact from backup
	sync := s.syncInstallationContactV2FromContact(bobFromAlice)
	err = alice2.HandleSyncInstallationContactV2(state, &sync, nil)
	s.Require().NoError(err)

	// Accept latest CR for a contact
	resp, err := bob.AcceptLatestContactRequestForContact(context.Background(), &requests.AcceptLatestContactRequestForContact{ID: types.Hex2Bytes(aliceID)})
	s.Require().NoError(err)

	// Make sure the message is updated
	s.Require().NotNil(resp)
	s.Require().Len(resp.Messages(), 2)

	contactRequestMsg := s.findFirstByContentType(resp.Messages(), protobuf.ChatMessage_CONTACT_REQUEST)
	s.Require().NotNil(contactRequestMsg)

	// NOTE: We don't restore CR message
	// s.Require().Equal(resp.Messages()[0].ID, contactRequest.ID)
	s.Require().Equal(common.ContactRequestStateAccepted, contactRequestMsg.ContactRequestState)

	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().NotNil(resp.ActivityCenterNotifications()[0].Message)
	s.Require().Equal(common.ContactRequestStateAccepted, resp.ActivityCenterNotifications()[0].Message.ContactRequestState)

	// Check the contact state is correctly set
	s.Require().Len(resp.Contacts, 1)
	s.Require().True(resp.Contacts[0].mutual())

	// Make sure the sender is added to our contacts
	contacts := bob.AddedContacts()
	s.Require().Len(contacts, 1)

	// Make sure we consider them a mutual contact, receiver side
	mutualContacts := bob.MutualContacts()
	s.Require().Len(mutualContacts, 1)
}

/*
Makes Alice and Bob mutual contacts.
Verifies that Alice device-2 receives mutual contact information.
Contact request is sent from Alice device 1.
*/
func (s *MessengerContactRequestSuite) makeMutualContactsAndSync(alice1 *Messenger, alice2 *Messenger, bob *Messenger, messageText string) {
	bobPublicKey := bob.IdentityPublicKeyString()

	cr := s.createContactRequest(bobPublicKey, messageText)
	s.sendContactRequest(cr, alice1)
	receivedCR := s.receiveContactRequest(cr.Message, bob)
	s.acceptContactRequest(receivedCR, alice1, bob)
	s.checkMutualContact(alice1, bobPublicKey)

	// Wait for Alice-2 to sync new contact
	resp, _ := WaitOnMessengerResponse(alice2, func(r *MessengerResponse) bool {
		// FIXME: https://github.com/status-im/status-go/issues/3803
		// 		  No condition here. There are randomly received 1-3 messages.
		return false // len(r.Contacts) == 1 && len(r.Messages()) == 3
	}, "alice-2 didn't receive bob contact")
	s.logResponse(resp, "Wait for Alice-2 to sync new contact")
	s.Require().NotNil(resp)
	//s.Require().NoError(err)	// WARNING: Uncomment when bug fixed. https://github.com/status-im/status-go/issues/3803

	// Check that Alice-2 has Bob as a contact
	s.Require().Len(alice2.Contacts(), 1)
	s.Require().Equal(bobPublicKey, alice2.Contacts()[0].ID)

	// TODO: https://github.com/status-im/status-go/issues/3803
	// 		 Check response messages and AC notifications when
}

func (s *MessengerContactRequestSuite) blockContactAndSync(alice1 *Messenger, alice2 *Messenger, bob *Messenger) {
	bobPublicKey := bob.IdentityPublicKeyString()
	bobDisplayName, err := bob.settings.DisplayName()
	s.Require().NoError(err)

	// Alice-1 blocks Bob
	_, err = alice1.BlockContact(context.Background(), bobPublicKey, false)
	s.Require().NoError(err)
	s.Require().Len(alice1.BlockedContacts(), 1)
	s.Require().Equal(bobPublicKey, alice1.BlockedContacts()[0].ID)

	// Wait for Bob to receive message that he was removed as contact
	resp, err := WaitOnMessengerResponse(bob, func(r *MessengerResponse) bool {
		return len(r.Contacts) == 1 && len(r.Messages()) == 1
	}, "Bob didn't receive a message that he was removed as contact")

	s.Require().NoError(err)
	s.Require().NotNil(resp)
	s.logResponse(resp, "Wait for Bob to receive message that he was removed as contact")

	// Check response contacts
	s.Require().Len(resp.Contacts, 1)
	respContact := resp.Contacts[0]
	s.Require().Equal(respContact.ID, alice1.IdentityPublicKeyString())
	s.Require().Equal(ContactRequestStateNone, respContact.ContactRequestLocalState)
	s.Require().Equal(ContactRequestStateNone, respContact.ContactRequestRemoteState)

	// Check response messages
	s.Require().Len(resp.Messages(), 1)
	s.Require().Equal(resp.Messages()[0].Text, fmt.Sprintf(incomingMutualStateEventRemovedDefaultText, alice1.IdentityPublicKeyString()))

	// Check response AC notifications
	s.Require().Len(resp.ActivityCenterNotifications(), 1)
	s.Require().Equal(resp.ActivityCenterNotifications()[0].Type, ActivityCenterNotificationTypeContactRemoved)

	alice2.logger.Info("STARTING")
	// Wait for Alice-2 to sync Bob blocked state
	resp, err = WaitOnMessengerResponse(alice2, func(r *MessengerResponse) bool {
		return len(r.Contacts) == 1
	}, "Alice-2 didn't receive blocking bob")
	s.logResponse(resp, "Wait for Alice-2 to sync Bob blocked state")
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check that Bob contact is synced with correct display name and blocked
	s.Require().Len(alice2.Contacts(), 1)
	respContact = alice2.Contacts()[0]
	s.Require().True(respContact.Blocked)
	s.Require().True(respContact.Removed)
	s.Require().Equal(bobPublicKey, respContact.ID)
	s.Require().Equal(bobDisplayName, respContact.DisplayName)
	s.Require().Equal(ContactRequestStateDismissed, respContact.ContactRequestLocalState)
	s.Require().Equal(ContactRequestStateReceived, respContact.ContactRequestRemoteState)

	// Check chats list
	s.Require().Len(alice2.Chats(), deprecation.AddChatsCount(2))
}

func (s *MessengerContactRequestSuite) unblockContactAndSync(alice1 *Messenger, alice2 *Messenger, bob *Messenger) {
	bobPublicKey := bob.IdentityPublicKeyString()

	_, err := alice1.UnblockContact(bobPublicKey)
	s.Require().NoError(err)
	s.Require().Len(alice1.BlockedContacts(), 0)

	// Bob doesn't receive any message on blocking.
	// No response wait here.

	// Wait for Alice-2 to receive Bob unblocked state
	resp, err := WaitOnMessengerResponse(alice2, func(r *MessengerResponse) bool {
		return len(r.Contacts) == 1
	}, "Alice-2 didn't receive Bob unblocked state")
	s.logResponse(resp, "Wait for Alice-2 to receive Bob unblocked state")
	s.Require().NoError(err)
	s.Require().NotNil(resp)

	// Check that Alice-2 has Bob unblocked and removed
	s.Require().Len(alice2.Contacts(), 1)
	respContact := alice2.Contacts()[0]
	s.Require().Equal(bobPublicKey, respContact.ID)
	s.Require().False(respContact.Blocked)
	s.Require().True(respContact.Removed)
	s.Require().Equal(respContact.ContactRequestLocalState, ContactRequestStateNone)
	s.Require().Equal(respContact.ContactRequestRemoteState, ContactRequestStateNone)

	// Check chats list
	s.Require().Len(alice2.Chats(), deprecation.AddChatsCount(2))
}

func (s *MessengerContactRequestSuite) TestBlockedContactSyncing() {
	// Setup Bob
	bob := s.newMessenger()
	_, err := bob.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, bob)
	_ = bob.SetDisplayName("bob-1")
	s.logger.Info("Bob account set up", zap.String("publicKey", bob.IdentityPublicKeyString()))

	// Setup Alice-1
	alice1 := s.m
	s.logger.Info("Alice account set up", zap.String("publicKey", alice1.IdentityPublicKeyString()))

	// Setup Alice-2
	alice2, err := newMessengerWithKey(s.shh, s.m.identity, s.logger, nil)
	s.Require().NoError(err)
	_, err = alice2.Start()
	s.Require().NoError(err)
	defer TearDownMessenger(&s.Suite, alice2)

	// Pair alice-1 <-> alice-2
	// NOTE: This doesn't include initial data sync. Local pairing could be used.
	s.logger.Info("pairing Alice-1 and Alice-2")
	prepAliceMessengersForPairing(&s.Suite, alice1, alice2)
	PairDevices(&s.Suite, alice1, alice2)
	PairDevices(&s.Suite, alice2, alice1)
	s.logger.Info("pairing Alice-1 and Alice-2 finished")

	// Loop cr-block-unblock. Some bugs happen at second iteration.
	for i := 0; i < 2; i++ {
		crText := fmt.Sprintf("hello-%d", i)
		s.makeMutualContactsAndSync(alice1, alice2, bob, crText)
		s.blockContactAndSync(alice1, alice2, bob)
		s.unblockContactAndSync(alice1, alice2, bob)
	}
}