From 661d8608bc4670837a5fe438779af541be05cb40 Mon Sep 17 00:00:00 2001
From: Jennifer Wang <jiayingw703@gmail.com>
Date: Wed, 15 Mar 2023 11:53:00 -0400
Subject: [PATCH] evm account balances  Please enter the commit message for
 your changes. Lines starting

---
 cmd/lotus-shed/evmbalance.go | 125 +++++++++++++++++++++++++++++++++++
 cmd/lotus-shed/main.go       |   1 +
 2 files changed, 126 insertions(+)
 create mode 100644 cmd/lotus-shed/evmbalance.go

diff --git a/cmd/lotus-shed/evmbalance.go b/cmd/lotus-shed/evmbalance.go
new file mode 100644
index 000000000..843604620
--- /dev/null
+++ b/cmd/lotus-shed/evmbalance.go
@@ -0,0 +1,125 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"github.com/filecoin-project/go-state-types/big"
+
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+	cbor "github.com/ipfs/go-ipld-cbor"
+	"github.com/urfave/cli/v2"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/go-address"
+
+	"github.com/filecoin-project/lotus/chain/consensus/filcns"
+	"github.com/filecoin-project/lotus/chain/state"
+	"github.com/filecoin-project/lotus/chain/store"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/node/repo"
+)
+
+var evmBalanceCmd = &cli.Command{
+	Name:      "evm-balance",
+	Usage:     "Balances in eth accounts, evm contracts and placeholders",
+	ArgsUsage: "[state root]",
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:  "repo",
+			Value: "~/.lotus",
+		},
+	},
+
+	Action: func(cctx *cli.Context) error {
+		if cctx.NArg() != 1 {
+			return xerrors.New("only needs state root")
+		}
+
+		ctx := context.TODO()
+		if !cctx.Args().Present() {
+			return fmt.Errorf("must pass state root")
+		}
+
+		sroot, err := cid.Decode(cctx.Args().First())
+		if err != nil {
+			return fmt.Errorf("failed to parse input: %w", err)
+		}
+
+		fsrepo, err := repo.NewFS(cctx.String("repo"))
+		if err != nil {
+			return err
+		}
+
+		lkrepo, err := fsrepo.Lock(repo.FullNode)
+		if err != nil {
+			return err
+		}
+
+		defer lkrepo.Close() //nolint:errcheck
+
+		bs, err := lkrepo.Blockstore(ctx, repo.UniversalBlockstore)
+		if err != nil {
+			return fmt.Errorf("failed to open blockstore: %w", err)
+		}
+
+		defer func() {
+			if c, ok := bs.(io.Closer); ok {
+				if err := c.Close(); err != nil {
+					log.Warnf("failed to close blockstore: %s", err)
+				}
+			}
+		}()
+
+		mds, err := lkrepo.Datastore(context.Background(), "/metadata")
+		if err != nil {
+			return err
+		}
+
+		cs := store.NewChainStore(bs, bs, mds, filcns.Weight, nil)
+		defer cs.Close() //nolint:errcheck
+
+		cst := cbor.NewCborStore(bs)
+		st, err := state.LoadStateTree(cst, sroot)
+		if err != nil {
+			return err
+		}
+
+		fmt.Println("iterating over all actors")
+		count := 0
+		tvlEvm := abi.NewTokenAmount(0)
+		tvlEthAccount := abi.NewTokenAmount(0)
+		tvlPlaceholder := abi.NewTokenAmount(0)
+
+		err = st.ForEach(func(addr address.Address, act *types.Actor) error {
+			if count%200000 == 0 {
+				fmt.Println("processed ", count, " actors building maps")
+			}
+			count++
+
+			if builtin.IsEvmActor(act.Code) {
+				tvlEvm = types.BigAdd(tvlEvm, act.Balance)
+			}
+
+			if builtin.IsEthAccountActor(act.Code) {
+				tvlEthAccount = types.BigAdd(tvlEthAccount, act.Balance)
+			}
+
+			if builtin.IsPlaceholderActor(act.Code) {
+				tvlPlaceholder = types.BigAdd(tvlPlaceholder, act.Balance)
+			}
+
+			return nil
+		})
+
+		fmt.Println("TVL in Eth contracts: ", tvlEvm)
+		fmt.Println("TVL in Eth accounts: ", tvlEthAccount)
+		fmt.Println("TVL in placeholder: ", tvlPlaceholder)
+		fmt.Println("Total TVL: ", big.Add(big.Add(tvlEthAccount, tvlPlaceholder), tvlEvm))
+		return nil
+	},
+}
diff --git a/cmd/lotus-shed/main.go b/cmd/lotus-shed/main.go
index 6bb779859..c6efacf53 100644
--- a/cmd/lotus-shed/main.go
+++ b/cmd/lotus-shed/main.go
@@ -85,6 +85,7 @@ func main() {
 		gasTraceCmd,
 		replayOfflineCmd,
 		msgindexCmd,
+		evmBalanceCmd,
 	}
 
 	app := &cli.App{