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params.go
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params.go
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package types
import (
"fmt"
"time"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
epochtypes "github.com/osmosis-labs/osmosis/v15/x/epochs/types"
)
// Parameter store keys.
var (
KeyPruneEpochIdentifier = []byte("PruneEpochIdentifier")
KeyRecordHistoryKeepPeriod = []byte("RecordHistoryKeepPeriod")
_ paramtypes.ParamSet = &Params{}
)
const (
defaultPruneEpochIdentifier = "day"
defaultRecordHistoryKeepPeriod = 48 * time.Hour
)
// ParamTable for twap module.
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
func NewParams(pruneEpochIdentifier string, recordHistoryKeepPeriod time.Duration) Params {
return Params{
PruneEpochIdentifier: pruneEpochIdentifier,
RecordHistoryKeepPeriod: recordHistoryKeepPeriod,
}
}
// default twap module parameters.
func DefaultParams() Params {
return Params{
PruneEpochIdentifier: defaultPruneEpochIdentifier,
RecordHistoryKeepPeriod: defaultRecordHistoryKeepPeriod,
}
}
// validate params.
func (p Params) Validate() error {
if err := epochtypes.ValidateEpochIdentifierString(p.PruneEpochIdentifier); err != nil {
return err
}
if err := validatePeriod(p.RecordHistoryKeepPeriod); err != nil {
return err
}
return nil
}
// Implements params.ParamSet.
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyPruneEpochIdentifier, &p.PruneEpochIdentifier, epochtypes.ValidateEpochIdentifierInterface),
paramtypes.NewParamSetPair(KeyRecordHistoryKeepPeriod, &p.RecordHistoryKeepPeriod, validatePeriod),
}
}
func validatePeriod(i interface{}) error {
v, ok := i.(time.Duration)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v <= 0 {
return fmt.Errorf("time must be positive: %d", v)
}
return nil
}