code.vegaprotocol.io/vega@v0.79.0/datanode/sqlsubscribers/time_weighted_notional_position.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  	"fmt"
    21  
    22  	"code.vegaprotocol.io/vega/core/events"
    23  	"code.vegaprotocol.io/vega/datanode/entities"
    24  	eventspb "code.vegaprotocol.io/vega/protos/vega/events/v1"
    25  )
    26  
    27  type (
    28  	TimeWeightedNotionalPositionUpdatedEvent interface {
    29  		events.Event
    30  		TimeWeightedNotionalPositionUpdated() *eventspb.TimeWeightedNotionalPositionUpdated
    31  	}
    32  
    33  	TimeWeightedNotionalPositionStore interface {
    34  		Upsert(ctx context.Context, twNotionalPos entities.TimeWeightedNotionalPosition) error
    35  	}
    36  
    37  	TimeWeightedNotionalPosition struct {
    38  		subscriber
    39  		store TimeWeightedNotionalPositionStore
    40  	}
    41  )
    42  
    43  func NewTimeWeightedNotionalPosition(store TimeWeightedNotionalPositionStore) *TimeWeightedNotionalPosition {
    44  	return &TimeWeightedNotionalPosition{
    45  		store: store,
    46  	}
    47  }
    48  
    49  func (tw *TimeWeightedNotionalPosition) Types() []events.Type {
    50  	return []events.Type{
    51  		events.TimeWeightedNotionalPositionUpdatedEvent,
    52  	}
    53  }
    54  
    55  func (tw *TimeWeightedNotionalPosition) Push(ctx context.Context, e events.Event) error {
    56  	switch t := e.(type) {
    57  	case TimeWeightedNotionalPositionUpdatedEvent:
    58  		pos, err := entities.TimeWeightedNotionalPositionFromProto(t.TimeWeightedNotionalPositionUpdated(), tw.vegaTime)
    59  		if err != nil {
    60  			return fmt.Errorf("error converting TimeWeightedNotionalPositionUpdatedEvent to TimeWeightedNotionalPosition: %w", err)
    61  		}
    62  		return tw.store.Upsert(ctx, *pos)
    63  	default:
    64  		return fmt.Errorf("unexpected event type: %T", e)
    65  	}
    66  }
    67  
    68  func (tw *TimeWeightedNotionalPosition) Name() string {
    69  	return "TimeWeightedNotionalPosition"
    70  }