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checks.go
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checks.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.VEGA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package checks
import (
"errors"
"fmt"
"time"
"code.vegaprotocol.io/vega/libs/num"
"code.vegaprotocol.io/vega/logging"
types "code.vegaprotocol.io/vega/protos/vega"
)
type Collateral interface {
AssetExists(asset string) bool
}
type Assets interface {
IsEnabled(asset string) bool
}
func SpamPoWHashFunction(supportedFunctions []string) func(string) error {
return func(name string) error {
for _, v := range supportedFunctions {
if v == name {
return nil
}
}
return errors.New("Spam Proof of Work hash function must be SHA3")
}
}
func MarginScalingFactor() func(interface{}) error {
return func(v interface{}) error {
sf := v.(*types.ScalingFactors)
if sf.SearchLevel >= sf.InitialMargin || sf.InitialMargin >= sf.CollateralRelease {
return errors.New("invalid scaling factors (searchLevel < initialMargin < collateralRelease)")
}
return nil
}
}
func MarginScalingFactorRange(min, max num.Decimal) func(interface{}) error {
return func(v interface{}) error {
sf := v.(*types.ScalingFactors)
if sf.SearchLevel < min.InexactFloat64() || sf.CollateralRelease > max.InexactFloat64() {
return errors.New("invalid scaling factors (" + min.String() + "< searchLevel < initialMargin < collateralRelease <=" + max.String() + ")")
}
return nil
}
}
func PriceMonitoringParametersAuctionExtension(min, max time.Duration) func(interface{}) error {
return func(v interface{}) error {
pmp := v.(*types.PriceMonitoringParameters)
for _, pmt := range pmp.Triggers {
if time.Duration(pmt.AuctionExtension*int64(time.Second)) < min || time.Duration(pmt.AuctionExtension*int64(time.Second)) > max {
return errors.New("invalid AuctionExtension: must be between " + min.String() + " and " + max.String())
}
}
return nil
}
}
func PriceMonitoringParametersHorizon(min, max time.Duration) func(interface{}) error {
return func(v interface{}) error {
pmp := v.(*types.PriceMonitoringParameters)
for _, pmt := range pmp.Triggers {
if time.Duration(pmt.Horizon*int64(time.Second)) < min || time.Duration(pmt.Horizon*int64(time.Second)) > max {
return errors.New("invalid Horizon: must be between " + min.String() + " and " + max.String())
}
}
return nil
}
}
func PriceMonitoringParametersProbability(min, max num.Decimal) func(interface{}) error {
return func(v interface{}) error {
pmp := v.(*types.PriceMonitoringParameters)
for _, pmt := range pmp.Triggers {
p, e := num.DecimalFromString(pmt.Probability)
if e != nil {
return e
}
if p.LessThan(min) || p.GreaterThanOrEqual(max) {
return errors.New("invalid Probability: must be " + min.String() + " <= x < " + max.String())
}
}
return nil
}
}
func RewardAssetUpdate(
log *logging.Logger,
assets Assets,
collateral Collateral,
) func(value string) error {
return func(value string) error {
if !assets.IsEnabled(value) {
log.Debug("tried to push a reward update with an non-enabled asset",
logging.String("asset-id", value))
return fmt.Errorf("invalid asset %v", value)
}
if !collateral.AssetExists(value) {
log.Debug("unable to update reward asset in collateral",
logging.String("asset-id", value))
return fmt.Errorf("asset does not exists in collateral %v", value)
}
return nil
}
}