/
params.go
177 lines (151 loc) · 4.92 KB
/
params.go
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package types
import (
"fmt"
"strings"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"gopkg.in/yaml.v2"
)
var (
// KeyEarnRate is byte key for EarnRate param.
KeyEarnRates = []byte("EarnRates") //nolint:gochecknoglobals // cosmos-sdk style
// KeyBurnRate is byte key for BurnRate param.
KeyBurnRate = []byte("BurnRate") //nolint:gochecknoglobals // cosmos-sdk style
// KeyBurnCoin is byte key for BurnCoin param.
KeyBurnCoin = []byte("BurnCoin") //nolint:gochecknoglobals // cosmos-sdk style
// KeyBurnCoin is byte key for BurnCoin param.
KeyMarketFee = []byte("MarketFee") //nolint:gochecknoglobals // cosmos-sdk style
)
var (
// DefaultEarnRate is default value for the DefaultEarnRate param.
DefaultEarnRates = "0500,0300,0200" //nolint:gomnd,gochecknoglobals // cosmos-sdk style
// DefaultBurnRate is default value for the DefaultBurnRate param.
DefaultBurnRate = "1000" //nolint:gomnd,gochecknoglobals // cosmos-sdk style
// DefaultBurnCoin is default value for the DefaultBurnCoin param.
DefaultBurnCoin = "stake" //nolint:gomnd,gochecknoglobals // cosmos-sdk style
// DefaultMarketFee is default value for the MarketFee param.
DefaultMarketFee = "0030" //nolint:gomnd,gochecknoglobals // cosmos-sdk style
)
var _ paramtypes.ParamSet = (*Params)(nil)
// ParamKeyTable the param key table for launch module
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
// NewParams creates a new Params instance
func NewParams(
earnRates string,
burnRate string,
burnCoin string,
marketFee string,
) Params {
return Params{
EarnRates: earnRates,
BurnRate: burnRate,
BurnCoin: burnCoin,
MarketFee: marketFee,
}
}
// DefaultParams returns a default set of parameters
func DefaultParams() Params {
return NewParams(DefaultEarnRates, DefaultBurnRate, DefaultBurnCoin, DefaultMarketFee)
}
// ParamSetPairs get the params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyEarnRates, &p.EarnRates, validateEarnRates),
paramtypes.NewParamSetPair(KeyBurnRate, &p.BurnRate, validateBurnRate),
paramtypes.NewParamSetPair(KeyBurnCoin, &p.BurnCoin, validateBurnCoin),
paramtypes.NewParamSetPair(KeyMarketFee, &p.MarketFee, validateMarketFee),
}
}
// Validate validates the set of params
func (p Params) Validate() error {
if err := validateEarnRates(p.EarnRates); err != nil {
return err
}
if err := validateBurnRate(p.BurnRate); err != nil {
return err
}
if err := validateBurnCoin(p.BurnCoin); err != nil {
return err
}
if err := validateMarketFee(p.MarketFee); err != nil {
return err
}
return nil
}
// String implements the Stringer interface.
func (p Params) String() string {
out, _ := yaml.Marshal(p) //nolint:errcheck // error is not expected here
return string(out)
}
func validateEarnRates(i interface{}) error {
value, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
earnRatesStringArray := strings.Split(value, ",")
if len(earnRatesStringArray) > 10 {
return fmt.Errorf("the maximum number of rate values is 10")
}
var earnRates [10]sdk.Int
for i, v := range earnRatesStringArray {
earnRates[i], ok = sdk.NewIntFromString(v)
if !ok {
return fmt.Errorf("invalid string number format: %q", v)
}
if earnRates[i].LTE(sdk.ZeroInt()) {
return fmt.Errorf("earn rate numerator must be positive and greater than zero: %d", earnRates[i])
}
if earnRates[i].GTE(sdk.NewInt(10000)) {
return fmt.Errorf("earn rate numerator must be less than 10000: %d", earnRates[i])
}
if i > 0 {
if earnRates[i].GT(earnRates[i-1]) {
return fmt.Errorf("earn rates must not increase")
}
}
}
return nil
}
func validateBurnRate(i interface{}) error {
value, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
burnRate, ok := sdk.NewIntFromString(value)
if !ok {
return fmt.Errorf("invalid string number format: %q", value)
}
if burnRate.LTE(sdk.ZeroInt()) {
return fmt.Errorf("burn rate numerator must be positive and greater than zero: %d", burnRate)
}
if burnRate.GTE(sdk.NewInt(10000)) {
return fmt.Errorf("burn rate numerator must be less than 10000: %d", burnRate)
}
return nil
}
func validateBurnCoin(i interface{}) error {
_, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validateMarketFee(i interface{}) error {
value, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
marketFee, ok := sdk.NewIntFromString(value)
if !ok {
return fmt.Errorf("invalid string number format: %q", value)
}
if marketFee.LTE(sdk.ZeroInt()) {
return fmt.Errorf("market fee numerator must be positive and greater than zero: %d", marketFee)
}
if marketFee.GTE(sdk.NewInt(10000)) {
return fmt.Errorf("market fee numerator must be less than 10000: %d", marketFee)
}
return nil
}