mirror of
				https://github.com/0glabs/0g-chain.git
				synced 2025-11-04 11:17:28 +00:00 
			
		
		
		
	* add message types for swaps * add tx client commands * add test coverage for swap message deadlines * start handler swap tests, export handler result message event into private method, add stubbed keeper methods * add initial swap implementation to get handler tests passing; adds event specific for trades * add handler acceptance test for slippage in exact input and exact output swaps * implement slippage limit for swap keeper methods * add tests to ensure a user can only swap spendable coins * test pool not found, panic on invalid pool, and panic when module account does not have enough funds * validate that the exact output when using for exact swaps is less than the pool liquidity * nit: long line * add validation that swap output is greater than zero * add rest txs for swap messages * nit: lints * dry up swap keeper methods * from pr feedback - spelling and increase clairty around the output amount of a swap rounding to zero
		
			
				
	
	
		
			214 lines
		
	
	
		
			5.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			214 lines
		
	
	
		
			5.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package cli
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import (
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	"bufio"
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	"fmt"
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	"strconv"
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	"github.com/spf13/cobra"
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	"github.com/cosmos/cosmos-sdk/client"
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	"github.com/cosmos/cosmos-sdk/client/context"
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	"github.com/cosmos/cosmos-sdk/client/flags"
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	"github.com/cosmos/cosmos-sdk/codec"
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	sdk "github.com/cosmos/cosmos-sdk/types"
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	"github.com/cosmos/cosmos-sdk/version"
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	"github.com/cosmos/cosmos-sdk/x/auth"
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	"github.com/cosmos/cosmos-sdk/x/auth/client/utils"
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	"github.com/kava-labs/kava/x/swap/types"
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)
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// GetTxCmd returns the transaction commands for this module
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func GetTxCmd(cdc *codec.Codec) *cobra.Command {
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	swapTxCmd := &cobra.Command{
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		Use:                        types.ModuleName,
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		Short:                      fmt.Sprintf("%s transactions subcommands", types.ModuleName),
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		DisableFlagParsing:         true,
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		SuggestionsMinimumDistance: 2,
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		RunE:                       client.ValidateCmd,
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	}
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	swapTxCmd.AddCommand(flags.PostCommands(
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		getCmdDeposit(cdc),
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		getCmdWithdraw(cdc),
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		getCmdSwapExactForTokens(cdc),
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		getCmdSwapForExactTokens(cdc),
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	)...)
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	return swapTxCmd
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}
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func getCmdDeposit(cdc *codec.Codec) *cobra.Command {
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	return &cobra.Command{
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		Use:   "deposit [tokenA] [tokenB] [slippage] [deadline]",
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		Short: "deposit coins to a swap liquidity pool",
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		Example: fmt.Sprintf(
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			`%s tx %s deposit 10000000ukava 10000000usdx 0.01 1624224736 --from <key>`, version.ClientName, types.ModuleName,
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		),
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		Args: cobra.ExactArgs(4),
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		RunE: func(cmd *cobra.Command, args []string) error {
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			inBuf := bufio.NewReader(cmd.InOrStdin())
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			cliCtx := context.NewCLIContext().WithCodec(cdc)
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			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
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			tokenA, err := sdk.ParseCoin(args[0])
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			if err != nil {
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				return err
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			}
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			tokenB, err := sdk.ParseCoin(args[1])
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			if err != nil {
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				return err
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			}
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			slippage, err := sdk.NewDecFromStr(args[2])
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			if err != nil {
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				return err
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			}
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			deadline, err := strconv.ParseInt(args[3], 10, 64)
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			if err != nil {
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				return err
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			}
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			msg := types.NewMsgDeposit(cliCtx.GetFromAddress(), tokenA, tokenB, slippage, deadline)
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			if err := msg.ValidateBasic(); err != nil {
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				return err
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			}
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			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
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		},
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	}
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}
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func getCmdWithdraw(cdc *codec.Codec) *cobra.Command {
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	return &cobra.Command{
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		Use:   "withdraw [shares] [minCoinA] [minCoinB] [deadline]",
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		Short: "withdraw coins from a swap liquidity pool",
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		Example: fmt.Sprintf(
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			`%s tx %s withdraw 153000 10000000ukava 20000000usdx 176293740 --from <key>`, version.ClientName, types.ModuleName,
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		),
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		Args: cobra.ExactArgs(4),
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		RunE: func(cmd *cobra.Command, args []string) error {
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			inBuf := bufio.NewReader(cmd.InOrStdin())
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			cliCtx := context.NewCLIContext().WithCodec(cdc)
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			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
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			numShares, err := strconv.ParseInt(args[0], 10, 64)
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			if err != nil {
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				return err
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			}
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			shares := sdk.NewInt(numShares)
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			minTokenA, err := sdk.ParseCoin(args[1])
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			if err != nil {
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				return err
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			}
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			minTokenB, err := sdk.ParseCoin(args[2])
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			if err != nil {
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				return err
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			}
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			deadline, err := strconv.ParseInt(args[3], 10, 64)
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			if err != nil {
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				return err
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			}
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			msg := types.NewMsgWithdraw(cliCtx.GetFromAddress(), shares, minTokenA, minTokenB, deadline)
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			if err := msg.ValidateBasic(); err != nil {
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				return err
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			}
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			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
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		},
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	}
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}
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func getCmdSwapExactForTokens(cdc *codec.Codec) *cobra.Command {
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	return &cobra.Command{
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		Use:   "swap-exact-for-tokens [exactCoinA] [coinB] [slippage] [deadline]",
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		Short: "swap an exact amount of token a for token b",
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		Example: fmt.Sprintf(
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			`%s tx %s swap-exact-for-tokens 1000000ukava 5000000usdx 0.01 1624224736 --from <key>`, version.ClientName, types.ModuleName,
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		),
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		Args: cobra.ExactArgs(4),
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		RunE: func(cmd *cobra.Command, args []string) error {
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			inBuf := bufio.NewReader(cmd.InOrStdin())
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			cliCtx := context.NewCLIContext().WithCodec(cdc)
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			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
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			exactTokenA, err := sdk.ParseCoin(args[0])
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			if err != nil {
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				return err
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			}
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			tokenB, err := sdk.ParseCoin(args[1])
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			if err != nil {
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				return err
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			}
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			slippage, err := sdk.NewDecFromStr(args[2])
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			if err != nil {
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				return err
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			}
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			deadline, err := strconv.ParseInt(args[3], 10, 64)
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			if err != nil {
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				return err
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			}
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			msg := types.NewMsgSwapExactForTokens(cliCtx.GetFromAddress(), exactTokenA, tokenB, slippage, deadline)
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			if err := msg.ValidateBasic(); err != nil {
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				return err
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			}
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			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
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		},
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	}
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}
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func getCmdSwapForExactTokens(cdc *codec.Codec) *cobra.Command {
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	return &cobra.Command{
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		Use:   "swap-for-exact-tokens [coinA] [exactCoinB] [slippage] [deadline]",
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		Short: "swap token a for exact amount of token b",
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		Example: fmt.Sprintf(
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			`%s tx %s swap-for-exact-tokens 1000000ukava 5000000usdx 0.01 1624224736 --from <key>`, version.ClientName, types.ModuleName,
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		),
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		Args: cobra.ExactArgs(4),
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		RunE: func(cmd *cobra.Command, args []string) error {
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			inBuf := bufio.NewReader(cmd.InOrStdin())
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			cliCtx := context.NewCLIContext().WithCodec(cdc)
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			txBldr := auth.NewTxBuilderFromCLI(inBuf).WithTxEncoder(utils.GetTxEncoder(cdc))
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			tokenA, err := sdk.ParseCoin(args[0])
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			if err != nil {
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				return err
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			}
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			exactTokenB, err := sdk.ParseCoin(args[1])
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			if err != nil {
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				return err
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			}
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			slippage, err := sdk.NewDecFromStr(args[2])
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			if err != nil {
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				return err
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			}
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			deadline, err := strconv.ParseInt(args[3], 10, 64)
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			if err != nil {
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				return err
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			}
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			msg := types.NewMsgSwapForExactTokens(cliCtx.GetFromAddress(), tokenA, exactTokenB, slippage, deadline)
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			if err := msg.ValidateBasic(); err != nil {
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				return err
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			}
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			return utils.GenerateOrBroadcastMsgs(cliCtx, txBldr, []sdk.Msg{msg})
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		},
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	}
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}
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