package communities

import (
	"crypto/ecdsa"

	"github.com/status-im/status-go/eth-node/types"
	"github.com/status-im/status-go/protocol/common"
	"github.com/status-im/status-go/protocol/protobuf"
)

type CommunityPrivilegedMemberSyncMessage struct {
	CommunityPrivateKey                *ecdsa.PrivateKey
	Receivers                          []*ecdsa.PublicKey
	CommunityPrivilegedUserSyncMessage *protobuf.CommunityPrivilegedUserSyncMessage
}

func (m *Manager) HandleRequestToJoinPrivilegedUserSyncMessage(message *protobuf.CommunityPrivilegedUserSyncMessage, communityID types.HexBytes) ([]*RequestToJoin, error) {
	var state RequestToJoinState
	if message.Type == protobuf.CommunityPrivilegedUserSyncMessage_CONTROL_NODE_ACCEPT_REQUEST_TO_JOIN {
		state = RequestToJoinStateAccepted
	} else {
		state = RequestToJoinStateDeclined
	}

	requestsToJoin := make([]*RequestToJoin, 0)
	for signer, requestToJoinProto := range message.RequestToJoin {
		requestToJoin := &RequestToJoin{
			PublicKey:        signer,
			Clock:            requestToJoinProto.Clock,
			ENSName:          requestToJoinProto.EnsName,
			CommunityID:      requestToJoinProto.CommunityId,
			State:            state,
			RevealedAccounts: requestToJoinProto.RevealedAccounts,
		}
		requestToJoin.CalculateID()

		if _, err := m.saveOrUpdateRequestToJoin(communityID, requestToJoin); err != nil {
			return nil, err
		}

		if err := m.persistence.RemoveRequestToJoinRevealedAddresses(requestToJoin.ID); err != nil {
			return nil, err
		}

		if requestToJoin.RevealedAccounts != nil && len(requestToJoin.RevealedAccounts) > 0 {
			if err := m.persistence.SaveRequestToJoinRevealedAddresses(requestToJoin.ID, requestToJoin.RevealedAccounts); err != nil {
				return nil, err
			}
		}

		requestsToJoin = append(requestsToJoin, requestToJoin)
	}

	return requestsToJoin, nil
}

func (m *Manager) HandleSyncAllRequestToJoinForNewPrivilegedMember(message *protobuf.CommunityPrivilegedUserSyncMessage, communityID types.HexBytes) ([]*RequestToJoin, error) {
	nonAcceptedRequestsToJoin := []*RequestToJoin{}

	myPk := common.PubkeyToHex(&m.identity.PublicKey)

	// We received all requests to join from the control node. Remove all requests to join except our own
	err := m.persistence.RemoveAllCommunityRequestsToJoinWithRevealedAddressesExceptPublicKey(myPk, communityID)
	if err != nil {
		return nil, err
	}

	for _, syncRequestToJoin := range message.SyncRequestsToJoin {
		requestToJoin := new(RequestToJoin)
		requestToJoin.InitFromSyncProtobuf(syncRequestToJoin)

		if _, err := m.saveOrUpdateRequestToJoin(communityID, requestToJoin); err != nil {
			return nil, err
		}

		if requestToJoin.RevealedAccounts != nil && len(requestToJoin.RevealedAccounts) > 0 {
			if err := m.persistence.SaveRequestToJoinRevealedAddresses(requestToJoin.ID, requestToJoin.RevealedAccounts); err != nil {
				return nil, err
			}
		}

		if requestToJoin.State != RequestToJoinStateAccepted {
			nonAcceptedRequestsToJoin = append(nonAcceptedRequestsToJoin, requestToJoin)
		}
	}
	return nonAcceptedRequestsToJoin, nil
}