forked from Kava-Labs/kava
/
params.go
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/
params.go
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package types
import (
fmt "fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
// Parameter keys and default values
var (
KeyCommunityPoolInflation = []byte("CommunityPoolInflation")
KeyStakingRewardsApy = []byte("StakingRewardsApy")
// default inflation values are zero
DefaultCommunityPoolInflation = sdk.ZeroDec()
DefaultStakingRewardsApy = sdk.ZeroDec()
// MaxMintingRate returns the per second rate equivalent to 10,000% per year
MaxMintingRate = sdk.NewDec(100)
)
// NewParams returns new Params with inflation rates set
func NewParams(communityPoolInflation sdk.Dec, stakingRewardsApy sdk.Dec) Params {
return Params{
CommunityPoolInflation: communityPoolInflation,
StakingRewardsApy: stakingRewardsApy,
}
}
// ParamKeyTable returns the key table for the magemint module
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(KeyCommunityPoolInflation, &p.CommunityPoolInflation, validateCommunityPoolInflation),
paramtypes.NewParamSetPair(KeyStakingRewardsApy, &p.StakingRewardsApy, validateStakingRewardsApy),
}
}
// DefaultParams returns default valid parameters for the magemint module
func DefaultParams() Params {
return NewParams(DefaultCommunityPoolInflation, DefaultStakingRewardsApy)
}
// Validate checks that the parameters have valid values.
func (p *Params) Validate() error {
if err := validateCommunityPoolInflation(p.CommunityPoolInflation); err != nil {
return err
}
return validateStakingRewardsApy(p.StakingRewardsApy)
}
// String implements fmt.Stringer
func (p Params) String() string {
return fmt.Sprintf(`Params:
CommunityPoolInflation: %s
StakingRewardsApy: %s`,
p.CommunityPoolInflation, p.StakingRewardsApy)
}
func validateCommunityPoolInflation(i interface{}) error {
rate, ok := i.(sdk.Dec)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return validateRate(rate)
}
func validateStakingRewardsApy(i interface{}) error {
rate, ok := i.(sdk.Dec)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return validateRate(rate)
}
// validateRate ensures rate is properly initialized (non-nil), not negative, and not greater than the max rate
func validateRate(rate sdk.Dec) error {
if rate.IsNil() || rate.IsNegative() || rate.GT(MaxMintingRate) {
return fmt.Errorf(fmt.Sprintf("invalid rate: %s", rate))
}
return nil
}