package cli import ( "encoding/hex" "fmt" "strconv" "strings" "github.com/spf13/cobra" "github.com/cosmos/cosmos-sdk/client" "github.com/cosmos/cosmos-sdk/client/flags" "github.com/cosmos/cosmos-sdk/client/tx" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/cosmos/cosmos-sdk/version" tmtime "github.com/cometbft/cometbft/types/time" "github.com/0glabs/0g-chain/x/bep3/types" ) // GetTxCmd returns the transaction commands for this module func GetTxCmd() *cobra.Command { bep3TxCmd := &cobra.Command{ Use: "bep3", Short: "bep3 transactions subcommands", DisableFlagParsing: true, SuggestionsMinimumDistance: 2, RunE: client.ValidateCmd, } cmds := []*cobra.Command{ GetCmdCreateAtomicSwap(), GetCmdClaimAtomicSwap(), GetCmdRefundAtomicSwap(), } for _, cmd := range cmds { flags.AddTxFlagsToCmd(cmd) } bep3TxCmd.AddCommand(cmds...) return bep3TxCmd } // GetCmdCreateAtomicSwap cli command for creating atomic swaps func GetCmdCreateAtomicSwap() *cobra.Command { return &cobra.Command{ Use: "create [to] [recipient-other-chain] [sender-other-chain] [timestamp] [coins] [height-span]", Short: "create a new atomic swap", Example: fmt.Sprintf("%s tx %s create 0g1xy7hrjy9r0algz9w3gzm8u6mrpq97kwta747gj bnb1urfermcg92dwq36572cx4xg84wpk3lfpksr5g7 bnb1uky3me9ggqypmrsvxk7ur6hqkzq7zmv4ed4ng7 now 100bnb 270 --from validator", version.AppName, types.ModuleName), Args: cobra.ExactArgs(6), RunE: func(cmd *cobra.Command, args []string) error { clientCtx, err := client.GetClientTxContext(cmd) if err != nil { return err } from := clientCtx.GetFromAddress() // same as 0g-chain executor's deputy address to, err := sdk.AccAddressFromBech32(args[0]) if err != nil { return err } recipientOtherChain := args[1] // same as the other executor's deputy address senderOtherChain := args[2] // Timestamp defaults to time.Now() unless it's explicitly set var timestamp int64 if strings.Compare(args[3], "now") == 0 { timestamp = tmtime.Now().Unix() } else { timestamp, err = strconv.ParseInt(args[3], 10, 64) if err != nil { return err } } // Generate cryptographically strong pseudo-random number randomNumber, err := types.GenerateSecureRandomNumber() if err != nil { return err } randomNumberHash := types.CalculateRandomHash(randomNumber, timestamp) // Print random number, timestamp, and hash to user's console fmt.Printf("\nRandom number: %s\n", hex.EncodeToString(randomNumber)) fmt.Printf("Timestamp: %d\n", timestamp) fmt.Printf("Random number hash: %s\n\n", hex.EncodeToString(randomNumberHash)) coins, err := sdk.ParseCoinsNormalized(args[4]) if err != nil { return err } heightSpan, err := strconv.ParseUint(args[5], 10, 64) if err != nil { return err } msg := types.NewMsgCreateAtomicSwap( from.String(), to.String(), recipientOtherChain, senderOtherChain, randomNumberHash, timestamp, coins, heightSpan, ) err = msg.ValidateBasic() if err != nil { return err } return tx.GenerateOrBroadcastTxCLI(clientCtx, cmd.Flags(), &msg) }, } } // GetCmdClaimAtomicSwap cli command for claiming an atomic swap func GetCmdClaimAtomicSwap() *cobra.Command { return &cobra.Command{ Use: "claim [swap-id] [random-number]", Short: "claim coins in an atomic swap using the secret number", Example: fmt.Sprintf( "%s tx %s claim 6682c03cc3856879c8fb98c9733c6b0c30758299138166b6523fe94628b1d3af 56f13e6a5cd397447f8b5f8c82fdb5bbf56127db75269f5cc14e50acd8ac9a4c --from accA", version.AppName, types.ModuleName, ), Args: cobra.ExactArgs(2), RunE: func(cmd *cobra.Command, args []string) error { clientCtx, err := client.GetClientTxContext(cmd) if err != nil { return err } from := clientCtx.GetFromAddress() swapID, err := hex.DecodeString(args[0]) if err != nil { return err } if len(strings.TrimSpace(args[1])) == 0 { return fmt.Errorf("random-number cannot be empty") } randomNumber, err := hex.DecodeString(args[1]) if err != nil { return err } msg := types.NewMsgClaimAtomicSwap(from.String(), swapID, randomNumber) err = msg.ValidateBasic() if err != nil { return err } return tx.GenerateOrBroadcastTxCLI(clientCtx, cmd.Flags(), &msg) }, } } // GetCmdRefundAtomicSwap cli command for claiming an atomic swap func GetCmdRefundAtomicSwap() *cobra.Command { return &cobra.Command{ Use: "refund [swap-id]", Short: "refund the coins in an atomic swap", Example: fmt.Sprintf( "%s tx %s refund 6682c03cc3856879c8fb98c9733c6b0c30758299138166b6523fe94628b1d3af --from accA", version.AppName, types.ModuleName, ), Args: cobra.ExactArgs(1), RunE: func(cmd *cobra.Command, args []string) error { clientCtx, err := client.GetClientTxContext(cmd) if err != nil { return err } from := clientCtx.GetFromAddress() swapID, err := hex.DecodeString(args[0]) if err != nil { return err } msg := types.NewMsgRefundAtomicSwap(from.String(), swapID) err = msg.ValidateBasic() if err != nil { return err } return tx.GenerateOrBroadcastTxCLI(clientCtx, cmd.Flags(), &msg) }, } }