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message_swap.go
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message_swap.go
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package types
import (
"strings"
"github.com/btcsuite/btcutil/bech32"
sdk "github.com/cosmos/cosmos-sdk/types"
errorsmod "github.com/cosmos/cosmos-sdk/types/errors"
)
const TypeMsgSwap = "swap"
var _ sdk.Msg = &MsgSwapRequest{}
func NewMsgSwap(swapType SwapMsgType, sender, poolId string, slippage uint64, recipient string, tokenIn, tokenOut *sdk.Coin, port, channel string) *MsgSwapRequest {
return &MsgSwapRequest{
PoolId: poolId,
Sender: sender,
Slippage: slippage,
Recipient: recipient,
TokenIn: tokenIn,
TokenOut: tokenOut,
Port: port,
Channel: channel,
}
}
func (msg *MsgSwapRequest) Route() string {
return RouterKey
}
func (msg *MsgSwapRequest) Type() string {
return TypeMsgSwap
}
func (msg *MsgSwapRequest) GetSigners() []sdk.AccAddress {
creator, err := sdk.AccAddressFromBech32(msg.Sender)
if err != nil {
panic(err)
}
return []sdk.AccAddress{creator}
}
func (msg *MsgSwapRequest) GetSignBytes() []byte {
bz := ModuleCdc.MustMarshalJSON(msg)
return sdk.MustSortJSON(bz)
}
func (msg *MsgSwapRequest) ValidateBasic() error {
if msg.SwapType != SwapMsgType_LEFT && msg.SwapType != SwapMsgType_RIGHT {
return ErrInvalidSwapType
}
_, err := sdk.AccAddressFromBech32(msg.Sender)
if err != nil {
return errorsmod.Wrapf(ErrInvalidAddress, "invalid sender address (%s)", err)
}
if _, _, err := bech32.Decode(msg.Recipient); err != nil {
return errorsmod.Wrapf(ErrInvalidAddress, "invalid recipient address (%s)", err)
}
if msg.TokenIn == nil || msg.TokenOut == nil || strings.TrimSpace(msg.TokenIn.Denom) == "" || strings.TrimSpace(msg.TokenOut.Denom) == "" {
return errorsmod.Wrapf(ErrEmptyDenom, "missed token denoms (%s)", err)
}
if msg.TokenIn.Amount.LTE(sdk.NewInt(0)) || msg.TokenOut.Amount.LTE(sdk.NewInt(0)) {
return errorsmod.Wrapf(ErrInvalidAmount, "invalid token amounts (%s)", err)
}
if msg.Slippage == 0 {
return ErrInvalidSlippage
}
if msg.Channel == "" {
return ErrMissedIBCParams
}
if msg.Port == "" {
msg.Port = PortID
}
return nil
}