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params.go
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params.go
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package types
import (
"fmt"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
tmtime "github.com/tendermint/tendermint/types/time"
// cdptypes "github.com/kava-labs/kava/x/cdp/types"
)
// Parameter keys and default values
var (
KeyActive = []byte("Active")
KeyPeriods = []byte("Periods")
KeyInfra = []byte("InfrastructureParams")
DefaultActive = false
DefaultPeriods = []Period{}
DefaultInfraParams = InfrastructureParams{}
DefaultPreviousBlockTime = tmtime.Canonical(time.Unix(1, 0))
GovDenom = "ukava" // TODO: replace with cdptypes.DefaultGovDenom
)
func NewParams(active bool, periods []Period, infraParams InfrastructureParams) Params {
return Params{
Active: active,
Periods: periods,
InfrastructureParams: infraParams,
}
}
func DefaultParams() Params {
return NewParams(DefaultActive, DefaultPeriods, DefaultInfraParams)
}
func (p Params) String() string {
periods := "Periods\n"
for _, pr := range p.Periods {
periods += fmt.Sprintf("%s\n", pr)
}
return fmt.Sprintf(`Params:
Active: %t
Periods %s`, p.Active, periods)
}
func (p Params) Equal(other Params) bool {
if p.Active != other.Active {
return false
}
if len(p.Periods) != len(other.Periods) {
return false
}
for i, period := range p.Periods {
if !period.Equal(other.Periods[i]) {
return false
}
}
return true
}
// ParamKeyTable Key declaration for parameters
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
// ParamSetPairs implements the ParamSet interface and returns all the key/value pairs
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyActive, &p.Active, validateActiveParam),
paramtypes.NewParamSetPair(KeyPeriods, &p.Periods, validatePeriodsParams),
paramtypes.NewParamSetPair(KeyInfra, &p.InfrastructureParams, validateInfraParams),
}
}
// Validate checks that the parameters have valid values.
func (p Params) Validate() error {
if err := validateActiveParam(p.Active); err != nil {
return err
}
return validatePeriodsParams(p.Periods)
}
// NewPeriod returns a new instance of Period
func NewPeriod(start time.Time, end time.Time, inflation sdk.Dec) Period {
return Period{
Start: start,
End: end,
Inflation: inflation,
}
}
type Periods []Period
// String implements fmt.Stringer
func (pr Period) String() string {
return fmt.Sprintf(`Period:
Start: %s
End: %s
Inflation: %s`, pr.Start, pr.End, pr.Inflation)
}
func NewInfraParams(p Periods, pr PartnerRewards, cr CoreRewards) InfrastructureParams {
return InfrastructureParams{
InfrastructurePeriods: p,
PartnerRewards: pr,
CoreRewards: cr,
}
}
func NewPartnerReward(addr sdk.AccAddress, rps sdk.Coin) PartnerReward {
return PartnerReward{
Address: addr,
RewardsPerSecond: rps,
}
}
func NewCoreReward(addr sdk.AccAddress, w sdk.Dec) CoreReward {
return CoreReward{
Address: addr,
Weight: w,
}
}
func validateActiveParam(i interface{}) error {
_, ok := i.(bool)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validatePeriodsParams(i interface{}) error {
periods, ok := i.([]Period)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
prevEnd := tmtime.Canonical(time.Unix(0, 0))
for _, pr := range periods {
if pr.End.Before(pr.Start) {
return fmt.Errorf("end time for period is before start time: %s", pr)
}
if pr.Start.Before(prevEnd) {
return fmt.Errorf("periods must be in chronological order: %s", periods)
}
prevEnd = pr.End
if pr.Start.Unix() <= 0 || pr.End.Unix() <= 0 {
return fmt.Errorf("start or end time cannot be zero: %s", pr)
}
// TODO: validate period Inflation?
}
return nil
}
func validateInfraParams(i interface{}) error {
infraParams, ok := i.(InfrastructureParams)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
for _, pr := range infraParams.InfrastructurePeriods {
if pr.End.Before(pr.Start) {
return fmt.Errorf("end time for period is before start time: %s", pr)
}
prevEnd := tmtime.Canonical(time.Unix(0, 0))
if pr.Start.Before(prevEnd) {
return fmt.Errorf("periods must be in chronological order: %s", infraParams.InfrastructurePeriods)
}
prevEnd = pr.End
if pr.Start.Unix() <= 0 || pr.End.Unix() <= 0 {
return fmt.Errorf("start or end time cannot be zero: %s", pr)
}
// TODO: validate period Inflation?
}
return nil
}
type CoreRewards []CoreReward
type PartnerRewards []PartnerReward