feat: mint honey

pkg/dapp/bex/add_liquidity.go

@@ -6,6 +6,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethclient"
+	dappCommon "github.com/tiennampham23/berachain-airdrop/pkg/dapp/common"
 	"github.com/tiennampham23/berachain-airdrop/pkg/log"
 	"github.com/tiennampham23/berachain-airdrop/pkg/utilties/eth"
 	"math/big"
@@ -22,7 +23,7 @@ func AddLiquidityForSingleToken(
 		from, _ = eth.GetAddressFromPrivateKey(privateKey)
 	)
 
-	err := ApproveIfNeed(c, privateKey, tokenIn, amount)
+	err := dappCommon.ApproveIfNeed(c, privateKey, tokenIn, amount, Erc20ModuleContract)
 	if err != nil {
 		log.Logger().Errorw("Approve failed", "err", err)
 		return nil, err

pkg/dapp/bex/bex.go

@@ -1,15 +1,8 @@
 package bex
 
 import (
-	"context"
-	"crypto/ecdsa"
-	"errors"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/ethclient"
 	"github.com/go-resty/resty/v2"
-	"github.com/tiennampham23/berachain-airdrop/pkg/log"
-	"github.com/tiennampham23/berachain-airdrop/pkg/utilties/erc20"
-	"github.com/tiennampham23/berachain-airdrop/pkg/utilties/eth"
 	"math/big"
 	"time"
 )
@@ -34,53 +27,3 @@ var (
 func init() {
 	client = resty.New().SetTimeout(10 * time.Second)
 }
-
-func ApproveIfNeed(c *ethclient.Client, privateKey *ecdsa.PrivateKey, tokenIn common.Address, amount *big.Int) error {
-	var (
-		from, _ = eth.GetAddressFromPrivateKey(privateKey)
-	)
-	balance, err := erc20.BalanceOf(c, from, tokenIn)
-	if err != nil {
-		log.Logger().Errorw("Failed to get balance", "error", err)
-		return err
-	}
-
-	if balance.Cmp(amount) < 0 {
-		return errors.New("insufficient balance")
-	}
-	allowance, err := erc20.Allowance(c, from, Erc20ModuleContract, tokenIn)
-	if err != nil {
-		return err
-	}
-
-	if allowance.Cmp(amount) < 0 {
-		approvePayload, err := erc20.Approve(Erc20ModuleContract, ApproveMax)
-		if err != nil {
-			log.Logger().Errorw("Failed to approve payload", "error", err)
-			return err
-		}
-
-		tx, err := eth.SendTx(c, privateKey, approvePayload, nil, tokenIn)
-		if err != nil {
-			log.Logger().Errorw("Failed to send approval tx", "error", err)
-			return err
-		}
-		log.Logger().Infow("Approve tx", "tx", tx.Hash())
-
-		for {
-			_, isPending, err := c.TransactionByHash(context.Background(), tx.Hash())
-			if err != nil {
-				log.Logger().Errorw("Failed to get approve transaction by hash", "error", err)
-				time.Sleep(5 * time.Second)
-				continue
-			}
-			if isPending {
-				time.Sleep(5 * time.Second)
-				continue
-			}
-			break
-		}
-	}
-
-	return nil
-}

pkg/dapp/bex/swap.go

@@ -9,6 +9,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethclient"
+	dappCommon "github.com/tiennampham23/berachain-airdrop/pkg/dapp/common"
 	"github.com/tiennampham23/berachain-airdrop/pkg/log"
 	"github.com/tiennampham23/berachain-airdrop/pkg/utilties/eth"
 	"math/big"
@@ -109,7 +110,7 @@ func Swap(
 			return nil, errors.New("insufficient balance")
 		}
 	} else {
-		err := ApproveIfNeed(c, privateKey, tokenIn, amount)
+		err := dappCommon.ApproveIfNeed(c, privateKey, tokenIn, amount, Erc20ModuleContract)
 		if err != nil {
 			log.Logger().Errorw("Approve failed", "err", err)
 			return nil, err

pkg/dapp/common/approve.go

@@ -0,0 +1,68 @@
+package common
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"errors"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/ethclient"
+	"github.com/tiennampham23/berachain-airdrop/pkg/log"
+	"github.com/tiennampham23/berachain-airdrop/pkg/utilties/erc20"
+	"github.com/tiennampham23/berachain-airdrop/pkg/utilties/eth"
+	"math/big"
+	"time"
+)
+
+var (
+	ApproveMax, _ = new(big.Int).SetString("57896044618658097711785492504343953926634992332820282019728792003956564819967", 10)
+)
+
+func ApproveIfNeed(c *ethclient.Client, privateKey *ecdsa.PrivateKey, tokenIn common.Address, amount *big.Int, contract common.Address) error {
+	var (
+		from, _ = eth.GetAddressFromPrivateKey(privateKey)
+	)
+	balance, err := erc20.BalanceOf(c, from, tokenIn)
+	if err != nil {
+		log.Logger().Errorw("Failed to get balance", "error", err)
+		return err
+	}
+
+	if balance.Cmp(amount) < 0 {
+		return errors.New("insufficient balance")
+	}
+	allowance, err := erc20.Allowance(c, from, contract, tokenIn)
+	if err != nil {
+		return err
+	}
+
+	if allowance.Cmp(amount) < 0 {
+		approvePayload, err := erc20.Approve(contract, ApproveMax)
+		if err != nil {
+			log.Logger().Errorw("Failed to approve payload", "error", err)
+			return err
+		}
+
+		tx, err := eth.SendTx(c, privateKey, approvePayload, nil, tokenIn)
+		if err != nil {
+			log.Logger().Errorw("Failed to send approval tx", "error", err)
+			return err
+		}
+		log.Logger().Infow("Approve tx", "tx", tx.Hash())
+
+		for {
+			_, isPending, err := c.TransactionByHash(context.Background(), tx.Hash())
+			if err != nil {
+				log.Logger().Errorw("Failed to get approve transaction by hash", "error", err)
+				time.Sleep(5 * time.Second)
+				continue
+			}
+			if isPending {
+				time.Sleep(5 * time.Second)
+				continue
+			}
+			break
+		}
+	}
+
+	return nil
+}

pkg/dapp/honey/gen.sh

@@ -0,0 +1 @@
+abigen --abi=honey_abi.json --pkg=honey --out=honey_generated.go -type HoneyGenerated

pkg/dapp/honey/honey_abi.json

@@ -0,0 +1,37 @@
+[{"inputs": [{"internalType": "contract IERC20", "name": "_honey", "type": "address"}],
+  "stateMutability": "nonpayable", "type": "constructor"}, {"inputs": [], "name": "erc20Module",
+  "outputs": [
+    {"internalType": "contract IERC20Module",
+      "name": "", "type": "address"}],
+  "stateMutability": "view", "type": "function"},
+  {"inputs": [], "name": "getExchangable", "outputs": [{"components": [
+    {"internalType": "contract IERC20", "name": "collateral", "type": "address"},
+    {"internalType": "bool", "name": "enabled", "type": "bool"},
+    {"internalType": "uint256", "name": "mintRate", "type": "uint256"},
+    {"internalType": "uint256", "name": "redemptionRate", "type": "uint256"}],
+    "internalType": "struct ERC20Honey.ERC20Exchangable[]",
+    "name": "", "type": "tuple[]"}],
+    "stateMutability": "nonpayable", "type": "function"}, {"inputs": [], "name": "honey", "outputs": [
+  {"internalType": "contract IERC20", "name": "", "type": "address"}], "stateMutability": "view",
+  "type": "function"},
+  {"inputs": [], "name": "honeyModule",
+    "outputs": [{"internalType": "contract IHoneyModule", "name": "", "type": "address"}],
+    "stateMutability": "view", "type": "function"}, {
+  "inputs": [{"internalType": "address", "name": "to", "type": "address"},
+    {"internalType": "contract IERC20", "name": "collateral", "type": "address"},
+    {"internalType": "uint256", "name": "amount", "type": "uint256"}], "name": "mint",
+  "outputs": [{"internalType": "uint256", "name": "", "type": "uint256"}],
+  "stateMutability": "nonpayable", "type": "function"}, {
+  "inputs": [{"internalType": "contract IERC20", "name": "collateral", "type": "address"},
+    {"internalType": "uint256", "name": "amount", "type": "uint256"}], "name": "previewMint",
+  "outputs": [{"internalType": "uint256", "name": "", "type": "uint256"}], "stateMutability": "view",
+  "type": "function"}, {
+  "inputs": [{"internalType": "contract IERC20", "name": "collateral", "type": "address"},
+    {"internalType": "uint256", "name": "amount", "type": "uint256"}], "name": "previewRedeem",
+  "outputs": [{"internalType": "uint256", "name": "", "type": "uint256"}], "stateMutability": "view",
+  "type": "function"}, {"inputs": [{"internalType": "address", "name": "to", "type": "address"},
+  {"internalType": "uint256", "name": "amount", "type": "uint256"},
+  {"internalType": "contract IERC20", "name": "collateral",
+    "type": "address"}], "name": "redeem",
+  "outputs": [{"internalType": "uint256", "name": "", "type": "uint256"}],
+  "stateMutability": "nonpayable", "type": "function"}]