code.vegaprotocol.io/vega@v0.79.0/core/events/time.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 events
    17  
    18  import (
    19  	"context"
    20  	"time"
    21  
    22  	eventspb "code.vegaprotocol.io/vega/protos/vega/events/v1"
    23  )
    24  
    25  // Time event indicating a change in block time (ie time update).
    26  type Time struct {
    27  	*Base
    28  	blockTime time.Time
    29  }
    30  
    31  // NewTime returns a new time Update event.
    32  func NewTime(ctx context.Context, t time.Time) *Time {
    33  	return &Time{
    34  		Base:      newBase(ctx, TimeUpdate),
    35  		blockTime: t,
    36  	}
    37  }
    38  
    39  // Time returns the new blocktime.
    40  func (t Time) Time() time.Time {
    41  	return t.blockTime
    42  }
    43  
    44  func (t Time) Proto() eventspb.TimeUpdate {
    45  	return eventspb.TimeUpdate{
    46  		Timestamp: t.blockTime.UnixNano(),
    47  	}
    48  }
    49  
    50  func (t Time) StreamMessage() *eventspb.BusEvent {
    51  	p := t.Proto()
    52  	busEvent := newBusEventFromBase(t.Base)
    53  	busEvent.Event = &eventspb.BusEvent_TimeUpdate{
    54  		TimeUpdate: &p,
    55  	}
    56  
    57  	return busEvent
    58  }
    59  
    60  func TimeEventFromStream(ctx context.Context, be *eventspb.BusEvent) *Time {
    61  	return &Time{
    62  		Base:      newBaseFromBusEvent(ctx, TimeUpdate, be),
    63  		blockTime: time.Unix(0, be.GetTimeUpdate().Timestamp),
    64  	}
    65  }