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params.go
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params.go
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package types
import (
"bytes"
"fmt"
"time"
"github.com/cosmos/cosmos-sdk/x/params"
)
const (
DefaultCreateMarketFee = 1e10 // 100 * 10 ^8
DefaultGTEOrderLifetime = 200000
DefaultGTEOrderFeatureFeeByBlocks = 10
DefaultMaxExecutedPriceChangeRatio = 25
DefaultMarketFeeRatePrecision = 4
DefaultMarketFeeRate = 10
DefaultMarketFeeMin = 1000000
DefaultFeeForZeroDeal = 1000000
DefaultMarketMinExpiredTime = 7 * 24 * time.Hour
)
var (
KeyCreateMarketFee = []byte("CreateMarketFee")
keyMarketMinExpiredTime = []byte("MarketMinExpiredTime")
KeyGTEOrderLifetime = []byte("GTEOrderLifetime")
KeyGTEOrderFeatureFeeByBlocks = []byte("GTEOrderFeatureFeeByBlocks")
KeyMaxExecutedPriceChangeRatio = []byte("MaxExecutedPriceChangeRatio")
KeyMarketFeeRate = []byte("MarketFeeRate")
KeyMarketFeeMin = []byte("MarketFeeMin")
KeyFeeForZeroDeal = []byte("FeeForZeroDeal")
)
type Params struct {
CreateMarketFee int64 `json:"create_market_fee"`
MarketMinExpiredTime int64 `json:"market_min_expired_time"`
GTEOrderLifetime int64 `json:"gte_order_lifetime"`
GTEOrderFeatureFeeByBlocks int64 `json:"gte_order_feature_fee_by_blocks"`
MaxExecutedPriceChangeRatio int64 `json:"max_executed_price_change_ratio"`
MarketFeeRate int64 `json:"market_fee_rate"`
MarketFeeMin int64 `json:"market_fee_min"`
FeeForZeroDeal int64 `json:"fee_for_zero_deal"`
}
// ParamKeyTable for market module
func ParamKeyTable() params.KeyTable {
return params.NewKeyTable().RegisterParamSet(&Params{})
}
// DefaultParams returns a default set of parameters.
func DefaultParams() Params {
return Params{
DefaultCreateMarketFee,
int64(DefaultMarketMinExpiredTime),
DefaultGTEOrderLifetime,
DefaultGTEOrderFeatureFeeByBlocks,
DefaultMaxExecutedPriceChangeRatio,
DefaultMarketFeeRate,
DefaultMarketFeeMin,
DefaultFeeForZeroDeal,
}
}
// ParamSetPairs implements the ParamSet interface and returns all the key/value pairs
// pairs of asset module's parameters.
// nolint
func (p *Params) ParamSetPairs() params.ParamSetPairs {
return params.ParamSetPairs{
{Key: KeyCreateMarketFee, Value: &p.CreateMarketFee},
{Key: keyMarketMinExpiredTime, Value: &p.MarketMinExpiredTime},
{Key: KeyGTEOrderLifetime, Value: &p.GTEOrderLifetime},
{Key: KeyGTEOrderFeatureFeeByBlocks, Value: &p.GTEOrderFeatureFeeByBlocks},
{Key: KeyMaxExecutedPriceChangeRatio, Value: &p.MaxExecutedPriceChangeRatio},
{Key: KeyMarketFeeRate, Value: &p.MarketFeeRate},
{Key: KeyMarketFeeMin, Value: &p.MarketFeeMin},
{Key: KeyFeeForZeroDeal, Value: &p.FeeForZeroDeal},
}
}
func (p *Params) ValidateGenesis() error {
if p.CreateMarketFee <= 0 {
return fmt.Errorf("%s must be a positive number, is %d", KeyCreateMarketFee, p.CreateMarketFee)
}
if p.FeeForZeroDeal < p.MarketFeeMin {
return fmt.Errorf("%s : %d must greater than or equal to %s : %d", KeyFeeForZeroDeal,
p.FeeForZeroDeal, KeyMarketFeeMin, p.MarketFeeMin)
}
if p.MaxExecutedPriceChangeRatio < 0 || p.MarketFeeRate < 0 ||
p.MarketFeeMin < 0 || p.FeeForZeroDeal < 0 ||
p.GTEOrderLifetime < 0 || p.GTEOrderFeatureFeeByBlocks < 0 {
return fmt.Errorf("params must be positive, MaxExecutedPriceChangeRatio "+
": %d, MarketFeeRate: %d, MarketFeeMin: %d, FeeForZeroDeal: %d, GTEOrderLifetime"+
" : %d, GTEOrderFeatureFeeByBlocks : %d", p.MaxExecutedPriceChangeRatio,
p.MarketFeeRate, p.MarketFeeMin, p.FeeForZeroDeal, p.GTEOrderLifetime,
p.GTEOrderFeatureFeeByBlocks)
}
return nil
}
// Equal returns a boolean determining if two Params types are identical.
func (p Params) Equal(p2 Params) bool {
bz1 := ModuleCdc.MustMarshalBinaryLengthPrefixed(&p)
bz2 := ModuleCdc.MustMarshalBinaryLengthPrefixed(&p2)
return bytes.Equal(bz1, bz2)
}
func (p Params) String() string {
return fmt.Sprintf(`Market Params:
CreateMarketFee: %d
MarketMinExpiredTime: %d
GTEOrderLifetime: %d
GTEOrderFeatureFeeByBlocks: %d
MaxExecutedPriceChangeRatio: %d
MarketFeeRate: %d
MarketFeeMin: %d
FeeForZeroDeal: %d`,
p.CreateMarketFee,
p.MarketMinExpiredTime,
p.GTEOrderLifetime,
p.GTEOrderFeatureFeeByBlocks,
p.MaxExecutedPriceChangeRatio,
p.MarketFeeRate,
p.MarketFeeMin,
p.FeeForZeroDeal)
}