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params.go
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params.go
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package types
import (
"errors"
"fmt"
"strings"
"cosmossdk.io/math"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
"gopkg.in/yaml.v2"
)
const (
// DefaultDepositDenom Dafault deposit denom
DefaultDepositDenom = "BNB"
)
var (
// DefaultGVGStakingPerBytes defines the default gvg staking price
DefaultGVGStakingPerBytes = sdk.NewInt(16000) // 20%~30% of store price
DefaultMaxGlobalVirtualGroupNumPerFamily = uint32(10)
DefaultMaxStoreSizePerFamily = uint64(64) * 1024 * 1024 * 1024 * 1024 //64T
KeyDepositDenom = []byte("DepositDenom")
KeyGVGStakingPerBytes = []byte("GVGStakingPerBytes")
KeyMaxGlobalVirtualGroupNumPerFamily = []byte("MaxGlobalVirtualGroupNumPerFamily")
KeyMaxStoreSizePerFamily = []byte("MaxStoreSizePerFamily")
)
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(depositDenom string, gvgStakingPerBytes math.Int, maxGlobalVirtualGroupPerFamily uint32,
maxStoreSizePerFamily uint64) Params {
return Params{
DepositDenom: depositDenom,
GvgStakingPerBytes: gvgStakingPerBytes,
MaxGlobalVirtualGroupNumPerFamily: maxGlobalVirtualGroupPerFamily,
MaxStoreSizePerFamily: maxStoreSizePerFamily,
}
}
// DefaultParams returns a default set of parameters
func DefaultParams() Params {
return NewParams(DefaultDepositDenom, DefaultGVGStakingPerBytes, DefaultMaxGlobalVirtualGroupNumPerFamily, DefaultMaxStoreSizePerFamily)
}
// ParamSetPairs get the params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyDepositDenom, &p.DepositDenom, validateDepositDenom),
paramtypes.NewParamSetPair(KeyGVGStakingPerBytes, &p.GvgStakingPerBytes, validateGVGStakingPerBytes),
paramtypes.NewParamSetPair(KeyMaxGlobalVirtualGroupNumPerFamily, &p.MaxGlobalVirtualGroupNumPerFamily, validateMaxGlobalVirtualGroupNumPerFamily),
paramtypes.NewParamSetPair(KeyMaxStoreSizePerFamily, &p.MaxStoreSizePerFamily, validateMaxStoreSizePerFamily),
}
}
// Validate validates the set of params
func (p Params) Validate() error {
if err := validateDepositDenom(p.DepositDenom); err != nil {
return err
}
if err := validateGVGStakingPerBytes(p.GvgStakingPerBytes); err != nil {
return err
}
if err := validateMaxGlobalVirtualGroupNumPerFamily(p.MaxGlobalVirtualGroupNumPerFamily); err != nil {
return err
}
if err := validateMaxStoreSizePerFamily(p.MaxStoreSizePerFamily); err != nil {
return err
}
return nil
}
// String implements the Stringer interface.
func (p Params) String() string {
out, _ := yaml.Marshal(p)
return string(out)
}
func validateDepositDenom(i interface{}) error {
v, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if strings.TrimSpace(v) == "" {
return errors.New("deposit denom cannot be blank")
}
if err := sdk.ValidateDenom(v); err != nil {
return err
}
return nil
}
func validateGVGStakingPerBytes(i interface{}) error {
v, ok := i.(math.Int)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v.IsNil() || !v.IsPositive() {
return fmt.Errorf("invalid value for GVG staking per bytes")
}
return nil
}
func validateMaxGlobalVirtualGroupNumPerFamily(i interface{}) error {
v, ok := i.(uint32)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v == 0 {
return fmt.Errorf("max GVG per family must be positive: %d", v)
}
return nil
}
func validateMaxStoreSizePerFamily(i interface{}) error {
v, ok := i.(uint64)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v == 0 {
return fmt.Errorf("max store size per GVG family must be positive: %d", v)
}
return nil
}