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params.go
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params.go
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package types
import (
fmt "fmt"
"strings"
"time"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
yaml "gopkg.in/yaml.v2"
)
var (
DefaultClaimDenom = "ustars"
DefaultDurationUntilDecay = time.Hour
DefaultDurationOfDecay = time.Hour * 5
)
// Parameter store keys
var (
KeyEnabled = []byte("Enabled")
KeyStartTime = []byte("StartTime")
KeyClaimDenom = []byte("ClaimDenom")
KeyDurationUntilDecal = []byte("DurationUntilDecay")
KeyDurationOfDecay = []byte("DurationOfDecay")
KeyAllowedClaimers = []byte("AllowedClaimers")
)
func NewParams(enabled bool, claimDenom string, startTime time.Time, durationUntilDecay, durationOfDecay time.Duration, allowedClaimers []ClaimAuthorization) Params {
return Params{
AirdropEnabled: enabled,
ClaimDenom: claimDenom,
AirdropStartTime: startTime,
DurationUntilDecay: durationUntilDecay,
DurationOfDecay: durationOfDecay,
AllowedClaimers: allowedClaimers,
}
}
// String implements the stringer interface for Params
func (p Params) String() string {
out, err := yaml.Marshal(p)
if err != nil {
return ""
}
return string(out)
}
// ParamSetPairs - Implements params.ParamSet
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(KeyEnabled, &p.AirdropEnabled, validateEnabled),
paramtypes.NewParamSetPair(KeyClaimDenom, &p.ClaimDenom, validateDenom),
paramtypes.NewParamSetPair(KeyStartTime, &p.AirdropStartTime, validateTime),
paramtypes.NewParamSetPair(KeyDurationUntilDecal, &p.DurationUntilDecay, validateDuration),
paramtypes.NewParamSetPair(KeyDurationOfDecay, &p.DurationOfDecay, validateDuration),
paramtypes.NewParamSetPair(KeyAllowedClaimers, &p.AllowedClaimers, validateClaimers),
}
}
// Validate validates all params
func (p Params) Validate() error {
if err := validateEnabled(p.AirdropEnabled); err != nil {
return err
}
err := validateDenom(p.ClaimDenom)
return err
}
func (p Params) IsAirdropEnabled(t time.Time) bool {
if !p.AirdropEnabled {
return false
}
if p.AirdropStartTime.IsZero() {
return false
}
if t.Before(p.AirdropStartTime) {
return false
}
return true
}
// ParamKeyTable for staking module
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
func validateEnabled(i interface{}) error {
_, ok := i.(bool)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validateDenom(i interface{}) error {
v, ok := i.(string)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if strings.TrimSpace(v) == "" {
return fmt.Errorf("invalid denom: %s", v)
}
return nil
}
func validateTime(i interface{}) error {
_, ok := i.(time.Time)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}
func validateDuration(i interface{}) error {
d, ok := i.(time.Duration)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if d < 1 {
return fmt.Errorf("duration must be greater than or equal to 1: %d", d)
}
return nil
}
func validateClaimers(i interface{}) error {
_, ok := i.([]ClaimAuthorization)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
return nil
}