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vote.go
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vote.go
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package types
import (
"fmt"
"strings"
"github.com/NibiruChain/nibiru/x/common/asset"
"github.com/NibiruChain/nibiru/x/common/set"
"gopkg.in/yaml.v2"
sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
ExchangeRateTuplesSeparator = "|"
ExchangeRateTupleStringPrefix = '('
ExchangeRateTupleStringSuffix = ')'
ExchangeRateTuplePairRateSeparator = ","
)
// NewAggregateExchangeRatePrevote returns AggregateExchangeRatePrevote object
func NewAggregateExchangeRatePrevote(hash AggregateVoteHash, voter sdk.ValAddress, submitBlock uint64) AggregateExchangeRatePrevote {
return AggregateExchangeRatePrevote{
Hash: hash.String(),
Voter: voter.String(),
SubmitBlock: submitBlock,
}
}
// String implement stringify
func (v AggregateExchangeRatePrevote) String() string {
out, _ := yaml.Marshal(v)
return string(out)
}
// NewAggregateExchangeRateVote creates a AggregateExchangeRateVote instance
func NewAggregateExchangeRateVote(exchangeRateTuples ExchangeRateTuples, voter sdk.ValAddress) AggregateExchangeRateVote {
return AggregateExchangeRateVote{
ExchangeRateTuples: exchangeRateTuples,
Voter: voter.String(),
}
}
// String implement stringify
func (v AggregateExchangeRateVote) String() string {
out, _ := yaml.Marshal(v)
return string(out)
}
// NewExchangeRateTuple creates a ExchangeRateTuple instance
func NewExchangeRateTuple(pair asset.Pair, exchangeRate sdk.Dec) ExchangeRateTuple {
return ExchangeRateTuple{
pair,
exchangeRate,
}
}
// String implement stringify
func (m ExchangeRateTuple) String() string {
out, _ := yaml.Marshal(m)
return string(out)
}
// ToString converts the ExchangeRateTuple to the vote string.
func (m ExchangeRateTuple) ToString() (string, error) {
err := m.Pair.Validate()
if err != nil {
return "", err
}
return fmt.Sprintf(
"%c%s%s%s%c",
ExchangeRateTupleStringPrefix,
m.Pair,
ExchangeRateTuplePairRateSeparator,
m.ExchangeRate.String(),
ExchangeRateTupleStringSuffix,
), nil
}
// NewExchangeRateTupleFromString populates ExchangeRateTuple from a string, fails if the string is of invalid format.
func NewExchangeRateTupleFromString(s string) (ExchangeRateTuple, error) {
// strip parentheses
if len(s) <= 2 {
return ExchangeRateTuple{}, fmt.Errorf("invalid string length")
}
if s[0] != ExchangeRateTupleStringPrefix || s[len(s)-1] != ExchangeRateTupleStringSuffix {
return ExchangeRateTuple{}, fmt.Errorf("invalid ExchangeRateTuple delimiters, start is expected with '(', end with ')', got: %s", s)
}
stripParentheses := s[1 : len(s)-1]
split := strings.Split(stripParentheses, ExchangeRateTuplePairRateSeparator)
if len(split) != 2 {
return ExchangeRateTuple{}, fmt.Errorf("invalid ExchangeRateTuple format")
}
pair, err := asset.TryNewPair(split[0])
if err != nil {
return ExchangeRateTuple{}, fmt.Errorf("invalid pair definition %s: %w", split[0], err)
}
dec, err := sdk.NewDecFromStr(split[1])
if err != nil {
return ExchangeRateTuple{}, fmt.Errorf("invalid decimal %s: %w", split[1], err)
}
return ExchangeRateTuple{
Pair: pair,
ExchangeRate: dec,
}, nil
}
// ExchangeRateTuples - array of ExchangeRateTuple
type ExchangeRateTuples []ExchangeRateTuple
func (tuples ExchangeRateTuples) ToMap() (exchangeRateMap map[asset.Pair]sdk.Dec) {
exchangeRateMap = make(map[asset.Pair]sdk.Dec)
for _, tuple := range tuples {
exchangeRateMap[tuple.Pair] = tuple.ExchangeRate
}
return exchangeRateMap
}
// String implements fmt.Stringer interface
func (tuples ExchangeRateTuples) String() string {
out, _ := yaml.Marshal(tuples)
return string(out)
}
func NewExchangeRateTuplesFromString(s string) (ExchangeRateTuples, error) {
stringTuples := strings.Split(s, ExchangeRateTuplesSeparator)
tuples := make(ExchangeRateTuples, len(stringTuples))
duplicates := make(set.Set[asset.Pair], len(stringTuples))
for i, stringTuple := range stringTuples {
exchangeRate, err := NewExchangeRateTupleFromString(stringTuple)
if err != nil {
return []ExchangeRateTuple{}, fmt.Errorf("invalid ExchangeRateTuple at index %d: %w", i, err)
}
// check duplicates
if _, ok := duplicates[exchangeRate.Pair]; ok {
return []ExchangeRateTuple{}, fmt.Errorf("found duplicate at index %d: %s", i, exchangeRate.Pair)
} else {
duplicates[exchangeRate.Pair] = struct{}{}
}
// insert exchange rate into the tuple
tuples[i] = exchangeRate
}
return tuples, nil
}
func (tuples ExchangeRateTuples) ToString() (string, error) {
tuplesStringSlice := make([]string, len(tuples))
for i, r := range tuples {
rStr, err := r.ToString()
if err != nil {
return "", fmt.Errorf("invalid ExchangeRateTuple at index %d: %w", i, err)
}
tuplesStringSlice[i] = rStr
}
return strings.Join(tuplesStringSlice, "|"), nil
}
// ParseExchangeRateTuples ExchangeRateTuple parser
func ParseExchangeRateTuples(tuplesStr string) (ExchangeRateTuples, error) {
tuples, err := NewExchangeRateTuplesFromString(tuplesStr)
if err != nil {
return nil, err
}
return tuples, nil
}