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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"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
const (
DefaultMaxCampaignDuration = time.Hour * 24 * 90 // 90 days
)
var DefaultCampaignCreationFee = sdk.NewInt64Coin("uflix", 10_000_000)
var (
ParamStoreKeyMaxCampaignDuration = []byte("MaxCampaignDuration")
ParamStoreKeyCampaignCreationFee = []byte("CampaignCreationFee")
)
var _ paramtypes.ParamSet = (*Params)(nil)
// ParamKeyTable returns the parameter key table.
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
// DefaultParams returns default itc parameters
func DefaultParams() Params {
return Params{
MaxCampaignDuration: DefaultMaxCampaignDuration,
CreationFee: DefaultCampaignCreationFee,
}
}
// ParamSetPairs returns the parameter set pairs.
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(ParamStoreKeyMaxCampaignDuration, &p.MaxCampaignDuration, validateMaxCampaignDuration),
paramtypes.NewParamSetPair(ParamStoreKeyCampaignCreationFee, &p.CreationFee, validateCampaignCreationFee),
}
}
// ValidateBasic performs basic validation on itc parameters.
func (p Params) ValidateBasic() error {
if err := validateMaxCampaignDuration(p.MaxCampaignDuration); err != nil {
return err
}
if err := validateCampaignCreationFee(p.CreationFee); err != nil {
return err
}
return nil
}
func validateMaxCampaignDuration(i interface{}) error {
v, ok := i.(time.Duration)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if v.Seconds() <= 0 {
return fmt.Errorf("max campaign duration must be positive: %f", v.Seconds())
}
return nil
}
func validateCampaignCreationFee(i interface{}) error {
fee, ok := i.(sdk.Coin)
if !ok {
return fmt.Errorf("invalid parameter type: %T", i)
}
if !fee.IsValid() || fee.IsZero() {
return sdkerrors.Wrapf(ErrInvalidCreationFee,
"invalid fee amount %s, only accepts positive amounts", fee.String())
}
return nil
}