From 939e4feaf582139d6195b790aa60c42f57d4d89a Mon Sep 17 00:00:00 2001
From: Ben Lebherz <git@benleb.de>
Date: Sun, 16 Jul 2023 21:52:56 +0200
Subject: [PATCH] add new PoC watcher

---
 internal/chawago/watch.go | 117 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 internal/chawago/watch.go

diff --git a/internal/chawago/watch.go b/internal/chawago/watch.go
new file mode 100644
index 0000000..118a163
--- /dev/null
+++ b/internal/chawago/watch.go
@@ -0,0 +1,117 @@
+package chawago
+
+import (
+	"fmt"
+
+	"github.com/benleb/gloomberg/internal/gbl"
+	"github.com/benleb/gloomberg/internal/nemo/gloomberg"
+	"github.com/benleb/gloomberg/internal/nemo/wallet"
+	"github.com/benleb/gloomberg/internal/style"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/log"
+	mapset "github.com/deckarep/golang-set/v2"
+	"github.com/ethereum/go-ethereum/common"
+)
+
+type WalletWatcher struct {
+	gb *gloomberg.Gloomberg
+
+	Wallets        map[common.Address]*wallet.Wallet
+	watchedWallets mapset.Set[common.Address]
+}
+
+// NewWalletWatcher returns a new walletWatcher.
+func NewWalletWatcher(gb *gloomberg.Gloomberg) *WalletWatcher {
+	return &WalletWatcher{
+		gb: gb,
+
+		Wallets:        make(map[common.Address]*wallet.Wallet),
+		watchedWallets: mapset.NewSet[common.Address](),
+	}
+}
+
+// Pr prints messages from seawatcher to the terminal.
+func (ww *WalletWatcher) Pr(message string) {
+	ww.gb.PrWithKeywordAndIcon("👀", lipgloss.NewStyle().Foreground(lipgloss.Color("#ff0099")).Faint(true).Render("wawa"), message)
+}
+
+func (ww *WalletWatcher) PrDf(format string, a ...interface{}) {
+	lipgloss.NewStyle().Foreground(lipgloss.Color("#ff0099")).Faint(true).Render("wawa")
+
+	ww.Pr(fmt.Sprintf(format, a...))
+}
+
+// Prf formats and prints messages from seawatcher to the terminal.
+func (ww *WalletWatcher) Prf(format string, a ...interface{}) {
+	ww.Pr(fmt.Sprintf(format, a...))
+}
+
+func (ww *WalletWatcher) Watch() {
+	ww.Wallets[common.HexToAddress("0x1329d762e5e34e53a6c5e24bd15fa032482eb0f9")] = &wallet.Wallet{
+		Name:    "unknown",
+		Address: common.HexToAddress("0x1329d762e5e34e53a6c5e24bd15fa032482eb0f9"),
+	}
+
+	ww.watchedWallets = mapset.NewSetFromMapKeys[common.Address](ww.Wallets)
+
+	ww.Prf("watching %d wallets: %+v", ww.watchedWallets.Cardinality(), ww.watchedWallets)
+
+	// watch for new transactions
+	txsWithLogs := ww.gb.SubscribeTxWithLogs()
+
+	for tx := range txsWithLogs {
+		addressesInTx := mapset.NewSet[common.Address]()
+
+		if tx.Sender() != nil {
+			addressesInTx.Add(*tx.Sender())
+		}
+
+		if tx.To() != nil {
+			addressesInTx.Add(*tx.To())
+		}
+
+		for _, txLog := range tx.Logs {
+			for _, txTopic := range txLog.Topics {
+				if address := common.HexToAddress(txTopic.Hex()); address != (common.Address{}) {
+					addressesInTx.Add(address)
+				}
+			}
+		}
+
+		// check if any of the addresses in the tx are in the watchedWallets
+		if addressesInTx.Intersect(ww.watchedWallets).Cardinality() == 0 {
+			gbl.Log.Debugf("no watched wallet in tx %s", tx.Hash().Hex())
+
+			continue
+		}
+
+		// go notify.SendMessageViaTelegram(fmt.Sprintf("👀  %s", "https://etherscan.io/tx/"+tx.Hash().Hex()), viper.GetInt64("notifications.telegram.chat_id"), "", 0, nil)
+
+		log.Printf(" | %s", style.TerminalLink("https://etherscan.io/tx/"+tx.Hash().Hex(), style.AlmostWhiteStyle.Render(tx.Hash().Hex())))
+
+		// do something with the transaction
+		if tx.Sender() != nil && ww.watchedWallets.Contains(*tx.Sender()) {
+			// do something
+			log.Printf("Transaction from wallet %s: %s", ww.Wallets[*tx.Sender()].Name, style.TerminalLink("https://etherscan.io/tx/"+tx.Hash().Hex(), style.AlmostWhiteStyle.Render(tx.Hash().Hex())))
+		}
+
+		for _, txLog := range tx.Logs {
+			if len(txLog.Topics) > 0 && ww.watchedWallets.Contains(common.HexToAddress(txLog.Topics[0].Hex())) {
+				// do something
+				log.Printf("wallet %s in topic0: %s", ww.Wallets[common.HexToAddress(txLog.Topics[0].Hex())].Name, style.TerminalLink("https://etherscan.io/tx/"+tx.Hash().Hex(), style.AlmostWhiteStyle.Render(tx.Hash().Hex())))
+			}
+			if len(txLog.Topics) > 1 && ww.watchedWallets.Contains(common.HexToAddress(txLog.Topics[1].Hex())) {
+				// do something
+				log.Printf("wallet %s in topic1: %s", ww.Wallets[common.HexToAddress(txLog.Topics[1].Hex())].Name, style.TerminalLink("https://etherscan.io/tx/"+tx.Hash().Hex(), style.AlmostWhiteStyle.Render(tx.Hash().Hex())))
+			}
+			if len(txLog.Topics) > 2 && ww.watchedWallets.Contains(common.HexToAddress(txLog.Topics[2].Hex())) {
+				// do something
+				log.Printf("wallet %s in topic2: %s:", ww.Wallets[common.HexToAddress(txLog.Topics[2].Hex())].Name, style.TerminalLink("https://etherscan.io/tx/"+tx.Hash().Hex(), style.AlmostWhiteStyle.Render(tx.Hash().Hex())))
+			}
+			if len(txLog.Topics) > 3 && ww.watchedWallets.Contains(common.HexToAddress(txLog.Topics[3].Hex())) {
+				// do something
+				log.Printf("wallet %s in topic3: %s", ww.Wallets[common.HexToAddress(txLog.Topics[3].Hex())].Name, style.TerminalLink("https://etherscan.io/tx/"+tx.Hash().Hex(), style.AlmostWhiteStyle.Render(tx.Hash().Hex())))
+			}
+		}
+	}
+}