code.vegaprotocol.io/vega@v0.79.0/core/integration/steps/market/liquidation_strats.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 market
    17  
    18  import (
    19  	"embed"
    20  	"fmt"
    21  
    22  	"code.vegaprotocol.io/vega/core/integration/steps/helpers"
    23  	"code.vegaprotocol.io/vega/core/integration/steps/market/defaults"
    24  	types "code.vegaprotocol.io/vega/protos/vega"
    25  
    26  	"github.com/jinzhu/copier"
    27  )
    28  
    29  var (
    30  	//go:embed defaults/liquidation-config/*.json
    31  	defaultLiquidationConfigs         embed.FS
    32  	defaultLiquidationConfigFileNames = []string{
    33  		"defaults/liquidation-config/legacy-liquidation-strategy.json",
    34  		"defaults/liquidation-config/default-liquidation-strat.json",
    35  		"defaults/liquidation-config/slow-liquidation-strat.json",
    36  		"defaults/liquidation-config/AC-013-strat.json",
    37  	}
    38  
    39  	defaultStrat = "legacy-liquidation-strategy"
    40  )
    41  
    42  type liquidationConfig struct {
    43  	config map[string]*types.LiquidationStrategy
    44  }
    45  
    46  func newLiquidationConfig(unmarshaler *defaults.Unmarshaler) *liquidationConfig {
    47  	config := &liquidationConfig{
    48  		config: map[string]*types.LiquidationStrategy{},
    49  	}
    50  
    51  	contentReaders := helpers.ReadAll(defaultLiquidationConfigs, defaultLiquidationConfigFileNames)
    52  	for name, contentReader := range contentReaders {
    53  		liquidationConfig, err := unmarshaler.UnmarshalLiquidationConfig(contentReader)
    54  		if err != nil {
    55  			panic(fmt.Errorf("couldn't unmarshal default liquidation config %s: %v", name, err))
    56  		}
    57  		if err := config.Add(name, liquidationConfig); err != nil {
    58  			panic(fmt.Errorf("failed to add default liquidation config %s: %v", name, err))
    59  		}
    60  	}
    61  
    62  	return config
    63  }
    64  
    65  func (f *liquidationConfig) Add(name string, strategy *types.LiquidationStrategy) error {
    66  	f.config[name] = strategy
    67  	return nil
    68  }
    69  
    70  func (f *liquidationConfig) Get(name string) (*types.LiquidationStrategy, error) {
    71  	if name == "" {
    72  		// for now, default to the legacy strategy
    73  		name = defaultStrat
    74  	}
    75  	strategy, ok := f.config[name]
    76  	if !ok {
    77  		return strategy, fmt.Errorf("no liquidation configuration \"%s\" registered", name)
    78  	}
    79  	// Copy to avoid modification between tests.
    80  	copyConfig := &types.LiquidationStrategy{}
    81  	if err := copier.Copy(copyConfig, strategy); err != nil {
    82  		panic(fmt.Errorf("failed to deep copy liquidation config: %v", err))
    83  	}
    84  	return copyConfig, nil
    85  }