code.vegaprotocol.io/vega@v0.79.0/datanode/sqlsubscribers/proposal.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 ProposalEvent interface {
    29  	events.Event
    30  	ProposalID() string
    31  	PartyID() string
    32  	Proposal() vega.Proposal
    33  }
    34  
    35  type proposalAdder interface {
    36  	AddProposal(context.Context, entities.Proposal) error
    37  }
    38  
    39  type Proposal struct {
    40  	subscriber
    41  	store proposalAdder
    42  }
    43  
    44  func NewProposal(store proposalAdder) *Proposal {
    45  	ps := &Proposal{
    46  		store: store,
    47  	}
    48  	return ps
    49  }
    50  
    51  func (ps *Proposal) Types() []events.Type {
    52  	return []events.Type{events.ProposalEvent}
    53  }
    54  
    55  func (ps *Proposal) Push(ctx context.Context, evt events.Event) error {
    56  	return ps.consume(ctx, evt.(ProposalEvent))
    57  }
    58  
    59  func (ps *Proposal) consume(ctx context.Context, event ProposalEvent) error {
    60  	protoProposal := event.Proposal()
    61  	proposal, err := entities.ProposalFromProto(&protoProposal, entities.TxHash(event.TxHash()))
    62  
    63  	// The timestamp in the proto proposal is the time of the initial proposal, not any update
    64  	proposal.VegaTime = ps.vegaTime
    65  	if err != nil {
    66  		return errors.Wrap(err, "unable to parse proposal")
    67  	}
    68  
    69  	return errors.Wrap(ps.store.AddProposal(ctx, proposal), "error adding proposal")
    70  }
    71  
    72  func (ps *Proposal) Name() string {
    73  	return "Proposal"
    74  }