forked from terra-money/classic-core
/
msg.go
82 lines (65 loc) · 1.92 KB
/
msg.go
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package market
import (
"encoding/json"
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// RouterKey is they name of the market module
const RouterKey = "market"
//--------------------------------------------------------
//--------------------------------------------------------
// SwapMsg contains a swap request
type SwapMsg struct {
Trader sdk.AccAddress // Address of the trader
OfferCoin sdk.Coin // Coin being offered
AskDenom string // Denom of the coin to swap to
}
// NewSwapMsg creates a SwapMsg instance
func NewSwapMsg(traderAddress sdk.AccAddress, offerCoin sdk.Coin, askCoin string) SwapMsg {
return SwapMsg{
Trader: traderAddress,
OfferCoin: offerCoin,
AskDenom: askCoin,
}
}
// Route Implements Msg
func (msg SwapMsg) Route() string { return "market" }
// Type implements sdk.Msg
func (msg SwapMsg) Type() string { return "swap" }
// GetSignBytes Implements Msg
func (msg SwapMsg) GetSignBytes() []byte {
b, err := json.Marshal(msg)
if err != nil {
panic(err)
}
return b
}
// GetSigners Implements Msg
func (msg SwapMsg) GetSigners() []sdk.AccAddress {
return []sdk.AccAddress{msg.Trader}
}
// ValidateBasic Implements Msg
func (msg SwapMsg) ValidateBasic() sdk.Error {
if len(msg.Trader) == 0 {
return sdk.ErrInvalidAddress("Invalid address: " + msg.Trader.String())
}
if msg.OfferCoin.Amount.LT(sdk.ZeroInt()) {
return ErrInsufficientSwapCoins(DefaultCodespace, msg.OfferCoin.Amount)
}
if msg.OfferCoin.Denom == msg.AskDenom {
return ErrRecursiveSwap(DefaultCodespace, msg.AskDenom)
}
return nil
}
// String Implements Msg
func (msg SwapMsg) String() string {
return fmt.Sprintf("SwapMsg{trader %v, offer %v, ask %s}", msg.Trader, msg.OfferCoin, msg.AskDenom)
}
type SwapHistory []SwapMsg
// String implements fmt.Stringer interface
func (swaps SwapHistory) String() (out string) {
for _, swap := range swaps {
out += fmt.Sprintf("\n %s", swap.String())
}
return
}