code.vegaprotocol.io/vega@v0.79.0/datanode/sqlsubscribers/vote.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package sqlsubscribers
    17  
    18  import (
    19  	"context"
    20  
    21  	"code.vegaprotocol.io/vega/core/events"
    22  	"code.vegaprotocol.io/vega/datanode/entities"
    23  	"code.vegaprotocol.io/vega/protos/vega"
    24  
    25  	"github.com/pkg/errors"
    26  )
    27  
    28  type VoteEvent interface {
    29  	events.Event
    30  	ProposalID() string
    31  	PartyID() string
    32  	Vote() vega.Vote
    33  	Value() vega.Vote_Value
    34  }
    35  
    36  type GovernanceService interface {
    37  	AddVote(context.Context, entities.Vote) error
    38  }
    39  
    40  type Vote struct {
    41  	subscriber
    42  	store GovernanceService
    43  }
    44  
    45  func NewVote(store GovernanceService) *Vote {
    46  	vs := &Vote{
    47  		store: store,
    48  	}
    49  	return vs
    50  }
    51  
    52  func (vs *Vote) Types() []events.Type {
    53  	return []events.Type{events.VoteEvent}
    54  }
    55  
    56  func (vs *Vote) Push(ctx context.Context, evt events.Event) error {
    57  	return vs.consume(ctx, evt.(VoteEvent))
    58  }
    59  
    60  func (vs *Vote) consume(ctx context.Context, event VoteEvent) error {
    61  	protoVote := event.Vote()
    62  	vote, err := entities.VoteFromProto(&protoVote, entities.TxHash(event.TxHash()))
    63  
    64  	// The timestamp provided on the vote proto object is from when the vote was first created.
    65  	// It doesn't change when the vote is updated (e.g. with TotalGovernanceTokenWeight et al when
    66  	// the proposal closes.)
    67  	vote.VegaTime = vs.vegaTime
    68  
    69  	if err != nil {
    70  		return errors.Wrap(err, "unable to parse vote")
    71  	}
    72  
    73  	return errors.Wrap(vs.store.AddVote(ctx, vote), "error adding vote:%w")
    74  }
    75  
    76  func (vs *Vote) Name() string {
    77  	return "Vote"
    78  }