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msgs.go
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msgs.go
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package simulation
import (
"fmt"
"math"
"math/rand"
"time"
"github.com/cosmos/cosmos-sdk/baseapp"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/auth"
"github.com/cosmos/cosmos-sdk/x/simulation"
"github.com/coinexchain/cet-sdk/modules/asset"
"github.com/coinexchain/cet-sdk/modules/market"
"github.com/coinexchain/cet-sdk/modules/market/internal/keepers"
"github.com/coinexchain/cet-sdk/modules/market/internal/types"
simulationx "github.com/coinexchain/cet-sdk/simulation"
dex "github.com/coinexchain/cet-sdk/types"
)
// TODO
func SimulateMsgCreateTradingPair(k keepers.Keeper, ask asset.Keeper) simulation.Operation {
return func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simulation.Account) (
opMsg simulation.OperationMsg, fOps []simulation.FutureOperation, err error) {
fromAcc := simulation.RandomAcc(r, accs)
msg, err := createMsgCreateTradingPair(r, ctx, k, ask, fromAcc.Address)
if err != nil {
return simulation.NoOpMsg(types.ModuleName), nil, fmt.Errorf("error create msg")
}
handler := market.NewHandler(k)
ok := simulationx.SimulateHandleMsg(msg, handler, ctx)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
ok = verifyCreateTradingPair(ctx, k, msg)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, fmt.Errorf("trading pair creation failed")
}
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
}
func createMsgCreateTradingPair(r *rand.Rand, ctx sdk.Context, k keepers.Keeper, ask asset.Keeper, fromAddr sdk.AccAddress) (types.MsgCreateTradingPair, error) {
stock, money := randomTradingPair(r, ctx, ask)
if stock == "" || money == "" {
return types.MsgCreateTradingPair{}, nil
}
precision := r.Intn(types.MaxTokenPricePrecision + 1)
if simulationx.RandomBool(r) {
fromAddr = ask.GetToken(ctx, stock).GetOwner()
}
if money != dex.CET && stock != dex.CET {
if _, err := k.GetMarketInfo(ctx, dex.GetSymbol(stock, dex.CET)); err != nil {
money = dex.CET
}
}
msg := types.MsgCreateTradingPair{
Stock: stock,
Money: money,
Creator: fromAddr,
PricePrecision: byte(precision),
}
if msg.ValidateBasic() != nil {
return types.MsgCreateTradingPair{}, fmt.Errorf("msg expected to pass validation check")
}
return msg, nil
}
func randomTradingPair(r *rand.Rand, ctx sdk.Context, ask asset.Keeper) (stock, money string) {
tokenList := ask.GetAllTokens(ctx)
if len(tokenList) < 2 {
return
}
stock = tokenList[simulationx.GetRandomElemIndex(r, len(tokenList))].GetSymbol()
for {
money = tokenList[simulationx.GetRandomElemIndex(r, len(tokenList))].GetSymbol()
if stock != money {
break
}
}
return
}
func verifyCreateTradingPair(ctx sdk.Context, k keepers.Keeper, msg types.MsgCreateTradingPair) bool {
tradingPair, err := k.GetMarketInfo(ctx, msg.GetSymbol())
return err == nil &&
tradingPair.PricePrecision == msg.PricePrecision
}
func SimulateMsgCancelTradingPair(k keepers.Keeper) simulation.Operation {
return func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simulation.Account) (
opMsg simulation.OperationMsg, fOps []simulation.FutureOperation, err error) {
fromAcc := simulation.RandomAcc(r, accs)
msg, err := createMsgCancelTradingPair(r, ctx, k, fromAcc.Address)
if err != nil {
return simulation.NoOpMsg(types.ModuleName), nil, nil
}
handler := market.NewHandler(k)
ok := simulationx.SimulateHandleMsg(msg, handler, ctx)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
if time.Now().UnixNano() < msg.EffectiveTime {
return simulation.NewOperationMsg(msg, ok, ""), []simulation.FutureOperation{
{
BlockTime: time.Unix(0, msg.EffectiveTime),
Op: SimulateVerifyCancelTradingPair(k, msg),
},
}, nil
}
ok = verifyCancelTradingPair(ctx, k, msg)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, fmt.Errorf("trading pair cancel failed")
}
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
}
func createMsgCancelTradingPair(r *rand.Rand, ctx sdk.Context, k keepers.Keeper, fromAddr sdk.AccAddress) (types.MsgCancelTradingPair, error) {
tradingPair, err := randomExistedTradingPair(r, ctx, k)
if err != nil {
return types.MsgCancelTradingPair{}, fmt.Errorf("no trading pair to cancel")
}
timeStamp := simulationx.RandTimestamp(r)
msg := types.MsgCancelTradingPair{
Sender: fromAddr,
TradingPair: tradingPair.GetSymbol(),
EffectiveTime: timeStamp.UnixNano(),
}
if msg.ValidateBasic() != nil {
return types.MsgCancelTradingPair{}, fmt.Errorf("msg expected to pass validation check")
}
return msg, nil
}
func verifyCancelTradingPair(ctx sdk.Context, k keepers.Keeper, msg types.MsgCancelTradingPair) bool {
_, err := k.GetMarketInfo(ctx, msg.TradingPair)
return err != nil
}
func SimulateVerifyCancelTradingPair(k keepers.Keeper, msg types.MsgCancelTradingPair) simulation.Operation {
return func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simulation.Account) (
opMsg simulation.OperationMsg, fOps []simulation.FutureOperation, err error) {
ok := verifyCancelTradingPair(ctx, k, msg)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, fmt.Errorf("trading pair cancel failed")
}
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
}
func SimulateMsgModifyPricePrecision(k keepers.Keeper) simulation.Operation {
return func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simulation.Account) (
opMsg simulation.OperationMsg, fOps []simulation.FutureOperation, err error) {
fromAcc := simulation.RandomAcc(r, accs)
msg, err := createMsgModifyPricePrecision(r, ctx, k, fromAcc.Address)
if err != nil {
return simulation.NoOpMsg(types.ModuleName), nil, nil
}
handler := market.NewHandler(k)
ok := simulationx.SimulateHandleMsg(msg, handler, ctx)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
ok = verifyModifyPricePrecision(ctx, k, msg)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, fmt.Errorf("trading pair price precision modification failed")
}
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
}
func createMsgModifyPricePrecision(r *rand.Rand, ctx sdk.Context, k keepers.Keeper, fromAddr sdk.AccAddress) (types.MsgModifyPricePrecision, error) {
tradingPair, err := randomExistedTradingPair(r, ctx, k)
if err != nil {
return types.MsgModifyPricePrecision{}, fmt.Errorf("no trading pair to modify price precision")
}
newPrecision := r.Intn(types.MaxTokenPricePrecision + 1)
msg := types.MsgModifyPricePrecision{
TradingPair: tradingPair.GetSymbol(),
PricePrecision: byte(newPrecision),
Sender: fromAddr,
}
if msg.ValidateBasic() != nil {
return types.MsgModifyPricePrecision{}, fmt.Errorf("msg expected to pass validation check")
}
return msg, nil
}
func verifyModifyPricePrecision(ctx sdk.Context, k keepers.Keeper, msg types.MsgModifyPricePrecision) bool {
tradingPair, err := k.GetMarketInfo(ctx, msg.TradingPair)
return err == nil && tradingPair.PricePrecision == msg.PricePrecision
}
func SimulateMsgCreateOrder(k keepers.Keeper, ak auth.AccountKeeper) simulation.Operation {
return func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simulation.Account) (
opMsg simulation.OperationMsg, fOps []simulation.FutureOperation, err error) {
msg, err := createMsgCreateOrder(r, ctx, k, ak, accs)
if err != nil {
return simulation.NoOpMsg(types.ModuleName), nil, nil
}
handler := market.NewHandler(k)
ok := simulationx.SimulateHandleMsg(msg, handler, ctx)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
ok = verifyCreateOrder(ctx, k, msg)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, fmt.Errorf("order creation failed")
}
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
}
func createMsgCreateOrder(r *rand.Rand, ctx sdk.Context, k keepers.Keeper, ak auth.AccountKeeper, accs []simulation.Account) (msg types.MsgCreateOrder, err error) {
var tradingPair types.MarketInfo
var denom string
var side int
if simulationx.RandomBool(r) {
side = types.BUY
} else {
side = types.SELL
}
//randomly generate trading pair
tradingPair, err = randomExistedTradingPair(r, ctx, k)
if side == types.BUY {
denom = tradingPair.Money
} else {
denom = tradingPair.Stock
}
if err != nil {
err = fmt.Errorf("no existed trading pair to create order")
return
}
//generate from account
var fromCoins sdk.Coins
var fromAddr sdk.AccAddress
var fromAcc auth.Account
for {
fromAddr = simulation.RandomAcc(r, accs).Address
fromAcc = ak.GetAccount(ctx, fromAddr)
fromCoins = fromAcc.GetCoins()
if !fromCoins.AmountOf(denom).IsZero() {
break
}
}
//randomly generate price & quantity to trade
coinsHold := fromCoins.AmountOf(denom)
var quantity, price int64
var precision byte
for {
precision = byte(r.Intn(int(tradingPair.PricePrecision) + 1))
quantity = r.Int63n(coinsHold.Int64())
price = r.Int63n(int64(math.Pow10(int(precision))))
if side == types.SELL || calculateAmount(price, quantity, precision).LT(coinsHold.ToDec()) {
break
}
}
var timeInforce int
if simulationx.RandomBool(r) {
timeInforce = types.IOC
} else {
timeInforce = types.GTE
}
msg = types.MsgCreateOrder{
Sender: fromAddr,
Identify: byte(r.Intn(255 + 1)),
TradingPair: tradingPair.GetSymbol(),
OrderType: types.LimitOrder,
PricePrecision: precision,
Price: price,
Quantity: quantity,
Side: byte(side),
TimeInForce: int64(timeInforce),
}
if msg.ValidateBasic() != nil {
return types.MsgCreateOrder{}, fmt.Errorf("msg expected to pass validation check")
}
return msg, nil
}
func calculateAmount(price, quantity int64, pricePrecision byte) sdk.Dec {
actualPrice := sdk.NewDec(price).Quo(sdk.NewDec(int64(math.Pow10(int(pricePrecision)))))
money := actualPrice.Mul(sdk.NewDec(quantity))
return money.Add(sdk.NewDec(types.ExtraFrozenMoney)).Ceil()
}
func randomExistedTradingPair(r *rand.Rand, ctx sdk.Context, k keepers.Keeper) (tradingPair types.MarketInfo, err error) {
tradingPairs := k.GetAllMarketInfos(ctx)
if len(tradingPairs) == 0 {
err = fmt.Errorf("no existed trading pair")
return
}
tradingPair = tradingPairs[r.Intn(len(tradingPairs))]
return
}
func verifyCreateOrder(ctx sdk.Context, k keepers.Keeper, msg types.MsgCreateOrder) bool {
ork := keepers.NewGlobalOrderKeeper(k.GetMarketKey(), types.ModuleCdc)
orderID := types.AssemblyOrderID(msg.Sender.String(), 0, msg.Identify)
order := ork.QueryOrder(ctx, orderID)
return order.Sender.Equals(msg.Sender) &&
order.TimeInForce == msg.TimeInForce &&
order.Side == msg.Side &&
order.Quantity == msg.Quantity &&
order.Price.Equal(sdk.NewDec(msg.Price).Quo(sdk.NewDec(int64(math.Pow10(int(msg.PricePrecision)))))) &&
order.TradingPair == msg.TradingPair &&
order.OrderType == msg.OrderType
}
func SimulateMsgCancelOrder(k keepers.Keeper) simulation.Operation {
return func(r *rand.Rand, app *baseapp.BaseApp, ctx sdk.Context,
accs []simulation.Account) (
opMsg simulation.OperationMsg, fOps []simulation.FutureOperation, err error) {
msg, err := createMsgCancelOrder(r, ctx, k)
if err != nil {
return simulation.NoOpMsg(types.ModuleName), nil, nil
}
handler := market.NewHandler(k)
ok := simulationx.SimulateHandleMsg(msg, handler, ctx)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
ok = verifyCancelOrder(ctx, k, msg)
if !ok {
return simulation.NewOperationMsg(msg, ok, ""), nil, fmt.Errorf("order cancel failed")
}
return simulation.NewOperationMsg(msg, ok, ""), nil, nil
}
}
func createMsgCancelOrder(r *rand.Rand, ctx sdk.Context, k keepers.Keeper) (types.MsgCancelOrder, error) {
orders := k.GetAllOrders(ctx)
if len(orders) == 0 {
return types.MsgCancelOrder{}, fmt.Errorf("no order to cancel")
}
orderToCancel := orders[r.Intn(len(orders))]
msg := types.MsgCancelOrder{
Sender: orderToCancel.Sender,
OrderID: orderToCancel.OrderID(),
}
if msg.ValidateBasic() != nil {
return types.MsgCancelOrder{}, fmt.Errorf("msg expected to pass validation check")
}
return msg, nil
}
func verifyCancelOrder(ctx sdk.Context, k keepers.Keeper, msg types.MsgCancelOrder) bool {
ork := keepers.NewGlobalOrderKeeper(k.GetMarketKey(), types.ModuleCdc)
order := ork.QueryOrder(ctx, msg.OrderID)
return order == nil
}