/
params.go
94 lines (82 loc) · 2.17 KB
/
params.go
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package types
import (
"fmt"
"regexp"
sdk "github.com/cosmos/cosmos-sdk/types"
paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
)
var (
DefaultFeePerByteDenom = "nanolike"
DefaultFeePerByteAmount int64 = 10000
DefaultRegistryName = "likecoin-chain"
DefaultFeePerByte = sdk.NewDecCoin(
DefaultFeePerByteDenom, sdk.NewInt(DefaultFeePerByteAmount),
)
)
var (
ParamKeyRegistryName = []byte("RegistryName")
ParamKeyFeePerByte = []byte("FeePerByte")
)
func ParamKeyTable() paramtypes.KeyTable {
return paramtypes.NewKeyTable().RegisterParamSet(&Params{})
}
var _ paramtypes.ParamSet = (*Params)(nil)
func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
return paramtypes.ParamSetPairs{
paramtypes.NewParamSetPair(ParamKeyRegistryName, &p.RegistryName, validateRegistryName),
paramtypes.NewParamSetPair(ParamKeyFeePerByte, &p.FeePerByte, validateFeePerByte),
}
}
func validateRegistryName(i interface{}) error {
s, ok := i.(string)
if !ok {
return fmt.Errorf("ISCN registry ID must be string, got type %T", i)
}
if s == "" {
return fmt.Errorf("ISCN registry ID is empty")
}
// TODO: see if need to add any other characters to valid character list
if regexp.MustCompile("^[-_.:a-zA-Z0-9]+$").FindString(s) != s {
return fmt.Errorf("ISCN registry ID contains invalid character")
}
return nil
}
func validateFeePerByte(i interface{}) error {
v, ok := i.(sdk.DecCoin)
if !ok {
return fmt.Errorf("ISCN fee per byte has invalid type: %T", i)
}
if v.Denom == "" {
return fmt.Errorf("ISCN fee per byte has empty denom")
}
if v.IsNegative() {
return fmt.Errorf("ISCN fee per byte must be non-negative, got %s", v.Amount.String())
}
return nil
}
func DefaultParams() Params {
return Params{
RegistryName: DefaultRegistryName,
FeePerByte: DefaultFeePerByte,
}
}
func (p Params) Validate() error {
var err error
err = validateRegistryName(p.RegistryName)
if err != nil {
return err
}
err = validateFeePerByte(p.FeePerByte)
if err != nil {
return err
}
return nil
}
func (p Params) String() string {
return fmt.Sprintf(`Params:
Registry name: %s,
Fee per byte: %s`,
p.RegistryName,
p.FeePerByte.String(),
)
}