add minimal cli functions

internal/x/paychan/client/cmd/cmd.go

@@ -3,11 +3,12 @@ package cli
 import (
 	"fmt"
 
+	"github.com/cosmos/cosmos-sdk/client/context"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/wire"
 	"github.com/spf13/cobra"
-	//"github.com/cosmos/cosmos-sdk/client/context"
-	//sdk "github.com/cosmos/cosmos-sdk/types"
-	//"github.com/cosmos/cosmos-sdk/wire"
 	//"github.com/cosmos/cosmos-sdk/x/auth"
+	"github.com/kava-labs/kava/internal/x/paychan"
 )
 
 // list of functions that return pointers to cobra commands
@@ -24,50 +25,178 @@ import (
 // create state update (sender signs) (just a half signed close tx, (json encoded?))
 // close paychan (receiver signs) (provide state update as arg)
 
-// example from x/auth
-/*
-func GetAccountCmd(storeName string, cdc *wire.Codec, decoder auth.AccountDecoder) *cobra.Command {
-	return &cobra.Command{
-		Use:   "account [address]",
-		Short: "Query account balance",
-		Args:  cobra.ExactArgs(1),
+func CreatePaychanCmd(cdc *wire.Codec) *cobra.Command {
+	flagTo := "to"
+	flagAmount := "amount"
+
+	cmd := &cobra.Command{
+		Use:   "create",
+		Short: "Create a new payment channel",
+		Long:  "Create a new payment channel from a local address to a remote address, funded with some amount of coins. These coins are removed from the sender account and put into the payment channel.",
+		Args:  cobra.NoArgs,
 		RunE: func(cmd *cobra.Command, args []string) error {
-
-			// find the key to look up the account
-			addr := args[0]
-
-			key, err := sdk.GetAccAddressBech32(addr)
-			if err != nil {
-				return err
-			}
-
-			// perform query
+			// get args: from, to, amount
+			// create a "client context" stuct populated with info from common flags
 			ctx := context.NewCoreContextFromViper()
-			res, err := ctx.Query(auth.AddressStoreKey(key), storeName)
+			// ChainID:         chainID,
+			// Height:          viper.GetInt64(client.FlagHeight),
+			// Gas:             viper.GetInt64(client.FlagGas),
+			// TrustNode:       viper.GetBool(client.FlagTrustNode),
+			// FromAddressName: viper.GetString(client.FlagName),
+			// NodeURI:         nodeURI,
+			// AccountNumber:   viper.GetInt64(client.FlagAccountNumber),
+			// Sequence:        viper.GetInt64(client.FlagSequence),
+			// Client:          rpc,
+			// Decoder:         nil,
+			// AccountStore:    "acc",
+
+			// Get sender adress
+			senderAddress, err := ctx.GetFromAddress()
 			if err != nil {
 				return err
 			}
 
-			// Check if account was found
-			if res == nil {
-				return sdk.ErrUnknownAddress("No account with address " + addr +
-					" was found in the state.\nAre you sure there has been a transaction involving it?")
-			}
-
-			// decode the value
-			account, err := decoder(res)
+			// Get receiver address
+			toStr := viper.GetString(flagTo)
+			receiverAddress, err := sdk.GetAccAddressBech32(toStr)
 			if err != nil {
 				return err
 			}
 
-			// print out whole account
-			output, err := wire.MarshalJSONIndent(cdc, account)
+			// Get channel funding amount
+			amountString := viper.GetString(flagAmount)
+			amount, err := sdk.ParseCoins(amountString)
 			if err != nil {
 				return err
 			}
-			fmt.Println(string(output))
-			return nil
+
+			// Create the create channel msg to send
+			// TODO write NewMsgCreate func?
+			msg := paychan.MsgCreate{
+				sender:   senderAddress,
+				receiver: receiverAddress,
+				amount:   amount,
+			}
+			// Build and sign the transaction, then broadcast to Tendermint
+			res, err := ctx.EnsureSignBuildBroadcast(ctx.FromAddressName, msg, cdc)
+			if err != nil {
+				return err
+			}
+			fmt.Printf("Committed at block %d. Hash: %s\n", res.Height, res.Hash.String())
 		},
 	}
+	cmd.Flags().String(flagTo, "", "Recipient address of the payment channel")
+	cmd.Flags().String(flagAmount, "", "Amount of coins to fund the paymetn channel with")
+	return cmd
+}
+
+func CreateNewStateCmd(cdc *wire.Codec) *cobra.Command {
+	flagId := "id"
+	flagTo := "to"
+	flagAmount := "amount"
+
+	cmd := &cobra.Command{
+		Use:   "localstate",
+		Short: "Create a payment channel claim",
+		Long:  "",
+		Args:  cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// sender(name) receiver id
+
+			// create a "client context" stuct populated with info from common flags
+			ctx := context.NewCoreContextFromViper()
+			// Get sender adress
+			senderAddress, err := ctx.GetFromAddress()
+			if err != nil {
+				return err
+			}
+			// Get id
+			id := viper.GetInt(flagId)
+			// Get receiver address
+			toStr := viper.GetString(flagTo)
+			receiverAddress, err := sdk.GetAccAddressBech32(toStr)
+			if err != nil {
+				return err
+			}
+			// Get channel receiver amount
+			amountString := viper.GetString(flagAmount)
+			amount, err := sdk.ParseCoins(amountString)
+			if err != nil {
+				return err
+			}
+
+			// create MsgClose
+
+			msg := paychan.MsgClose{
+				sender:         senderAddress,
+				receiver:       receiverAddress,
+				id:             id,
+				receiverAmount: amount,
+			}
+
+			// half sign it
+
+			txBytes, err := EnsureSignBuild(ctx, ctx.FromAddressName, msg, cdc)
+			if err != nil {
+				return err
+			}
+
+			// print it out
+
+			fmt.Println(txBytes)
+
+		},
+	}
+	cmd.Flags().Int(flagId, 0, "ID of the payment channel.")
+	cmd.Flags().String(flagTo, "", "Recipient address of the payment channel")
+	cmd.Flags().String(flagAmount, "", "Amount of coins to fund the paymetn channel with")
+	return cmd
+}
+
+// sign and build the transaction from the msg
+func EnsureSignBuild(ctx context.CoreContext, name string, msg sdk.Msg, cdc *wire.Codec) ([]byte, error) {
+
+	ctx, err = EnsureAccountNumber(ctx)
+	if err != nil {
+		return nil, err
+	}
+	// default to next sequence number if none provided
+	ctx, err = EnsureSequence(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	passphrase, err := ctx.GetPassphraseFromStdin(name)
+	if err != nil {
+		return nil, err
+	}
+
+	txBytes, err := ctx.SignAndBuild(name, passphrase, msg, cdc)
+	if err != nil {
+		return nil, err
+	}
+
+	return txBytes
+}
+
+func ClosePaychanCmd(cdc *wire.Codec) *cobra.Command {
+	flagId := "id"
+	flagTo := "to"
+	flagState := "state"
+
+	cmd := &cobra.Command{
+		Use:   "close",
+		Short: "Close a payment channel",
+		Long:  "",
+		Args:  cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			// get sender, reciver, id
+			// get state
+			// sign the state tx with receiver
+			// broadcast to tendermint
+		},
+	}
+	//cmd.Flags().String(flagTo, "", "Recipient address of the payment channel")
+	//cmd.Flags().String(flagAmount, "", "Amount of coins to fund the paymetn channel with")
+	return cmd
 }
-*/