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params.go
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params.go
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package types
import (
"fmt"
"strings"
paramstypes "github.com/cosmos/cosmos-sdk/x/params/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
// default paramspace for paramsModule keeper
DefaultParamspace = ModuleName
)
// Default profile paramsModule
var (
DefaultMinMonikerLength = sdk.NewInt(2)
DefaultMaxMonikerLength = sdk.NewInt(1000) //longest name on earth count 954 chars
DefaultRegEx = `^[A-Za-z0-9_]+$`
DefaultMinDTagLength = sdk.NewInt(3)
DefaultMaxDTagLength = sdk.NewInt(30)
DefaultMaxBioLength = sdk.NewInt(1000)
)
// Parameters store keys
var (
MonikerLenParamsKey = []byte("MonikerParams")
DtagLenParamsKey = []byte("DtagParams")
MaxBioLenParamsKey = []byte("MaxBioLen")
)
// ___________________________________________________________________________________________________________________
// ParamKeyTable Key declaration for parameters
func ParamKeyTable() paramstypes.KeyTable {
return paramstypes.NewKeyTable().RegisterParamSet(&Params{})
}
// NewParams creates a new ProfileParams obj
func NewParams(monikerLen MonikerParams, dtagLen DTagParams, maxBioLen sdk.Int) Params {
return Params{
MonikerParams: monikerLen,
DtagParams: dtagLen,
MaxBioLength: maxBioLen,
}
}
// DefaultParams return default paramsModule
func DefaultParams() Params {
return Params{
MonikerParams: DefaultMonikerParams(),
DtagParams: DefaultDtagParams(),
MaxBioLength: DefaultMaxBioLength,
}
}
// ParamSetPairs implements the ParamSet interface and returns the key/value pairs
// of profile module's parameters.
func (params *Params) ParamSetPairs() paramstypes.ParamSetPairs {
return paramstypes.ParamSetPairs{
paramstypes.NewParamSetPair(MonikerLenParamsKey, ¶ms.MonikerParams, ValidateMonikerParams),
paramstypes.NewParamSetPair(DtagLenParamsKey, ¶ms.DtagParams, ValidateDtagParams),
paramstypes.NewParamSetPair(MaxBioLenParamsKey, ¶ms.MaxBioLength, ValidateBioParams),
}
}
// Validate perform basic checks on all parameters to ensure they are correct
func (params Params) Validate() error {
if err := ValidateMonikerParams(params.MonikerParams); err != nil {
return err
}
if err := ValidateDtagParams(params.DtagParams); err != nil {
return err
}
return ValidateBioParams(params.MaxBioLength)
}
// ___________________________________________________________________________________________________________________
// NewMonikerParams creates a new MonikerParams obj
func NewMonikerParams(minLen, maxLen sdk.Int) MonikerParams {
return MonikerParams{
MinMonikerLength: minLen,
MaxMonikerLength: maxLen,
}
}
// DefaultMonikerParams return default moniker params
func DefaultMonikerParams() MonikerParams {
return NewMonikerParams(
DefaultMinMonikerLength,
DefaultMaxMonikerLength,
)
}
func ValidateMonikerParams(i interface{}) error {
params, isNameSurnParams := i.(MonikerParams)
if !isNameSurnParams {
return fmt.Errorf("invalid parameters type: %s", i)
}
minLength := params.MinMonikerLength
if minLength.IsNil() || minLength.LT(DefaultMinMonikerLength) {
return fmt.Errorf("invalid minimum moniker length param: %s", minLength)
}
// TODO make sense to cap this? I've done this thinking "what's the sense of having names higher that 1000 chars?"
maxLength := params.MaxMonikerLength
if maxLength.IsNil() || maxLength.IsNegative() || maxLength.GT(DefaultMaxMonikerLength) {
return fmt.Errorf("invalid max moniker length param: %s", maxLength)
}
return nil
}
// ___________________________________________________________________________________________________________________
// NewDtagParams creates a new DtagParams obj
func NewDtagParams(regEx string, minLen, maxLen sdk.Int) DTagParams {
return DTagParams{
RegEx: regEx,
MinDtagLength: minLen,
MaxDtagLength: maxLen,
}
}
// DefaultDtagParams return default paramsModule
func DefaultDtagParams() DTagParams {
return NewDtagParams(
DefaultRegEx,
DefaultMinDTagLength,
DefaultMaxDTagLength,
)
}
func ValidateDtagParams(i interface{}) error {
params, isMonikerParams := i.(DTagParams)
if !isMonikerParams {
return fmt.Errorf("invalid parameters type: %s", i)
}
if len(strings.TrimSpace(params.RegEx)) == 0 {
return fmt.Errorf("empty dTag regEx param")
}
if params.MinDtagLength.IsNegative() || params.MinDtagLength.LT(DefaultMinDTagLength) {
return fmt.Errorf("invalid minimum dTag length param: %s", params.MinDtagLength)
}
if params.MaxDtagLength.IsNegative() {
return fmt.Errorf("invalid max dTag length param: %s", params.MaxDtagLength)
}
return nil
}
// ___________________________________________________________________________________________________________________
func ValidateBioParams(i interface{}) error {
bioLen, isBioLenParams := i.(sdk.Int)
if !isBioLenParams {
return fmt.Errorf("invalid parameters type: %s", i)
}
if bioLen.IsNegative() {
return fmt.Errorf("invalid max bio length param: %s", bioLen)
}
return nil
}