From 98cb698f939c3a758f6810ae5f3f437d7d5a65eb Mon Sep 17 00:00:00 2001
From: Snider <snider@host.uk.com>
Date: Mon, 9 Mar 2026 16:27:35 +0000
Subject: [PATCH] fix: remove accidentally re-added cmd/chain/main.go

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 cmd/chain/main.go | 175 ----------------------------------------------
 1 file changed, 175 deletions(-)
 delete mode 100644 cmd/chain/main.go

diff --git a/cmd/chain/main.go b/cmd/chain/main.go
deleted file mode 100644
index ccd595b..0000000
--- a/cmd/chain/main.go
+++ /dev/null
@@ -1,175 +0,0 @@
-// Copyright (c) 2017-2026 Lethean (https://lt.hn)
-//
-// Licensed under the European Union Public Licence (EUPL) version 1.2.
-// SPDX-License-Identifier: EUPL-1.2
-
-package main
-
-import (
-	"context"
-	"crypto/rand"
-	"encoding/binary"
-	"flag"
-	"fmt"
-	"log"
-	"net"
-	"os"
-	"os/signal"
-	"path/filepath"
-	"time"
-
-	cli "forge.lthn.ai/core/cli/pkg/cli"
-	store "forge.lthn.ai/core/go-store"
-
-	"forge.lthn.ai/core/go-blockchain/chain"
-	"forge.lthn.ai/core/go-blockchain/config"
-	"forge.lthn.ai/core/go-blockchain/p2p"
-	"forge.lthn.ai/core/go-blockchain/tui"
-	levin "forge.lthn.ai/core/go-p2p/node/levin"
-)
-
-func main() {
-	dataDir := flag.String("data-dir", defaultDataDir(), "blockchain data directory")
-	seed := flag.String("seed", "seeds.lthn.io:36942", "seed peer address (host:port)")
-	testnet := flag.Bool("testnet", false, "use testnet")
-	flag.Parse()
-
-	if err := os.MkdirAll(*dataDir, 0o755); err != nil {
-		log.Fatalf("create data dir: %v", err)
-	}
-
-	dbPath := filepath.Join(*dataDir, "chain.db")
-	s, err := store.New(dbPath)
-	if err != nil {
-		log.Fatalf("open store: %v", err)
-	}
-	defer s.Close()
-
-	c := chain.New(s)
-	node := tui.NewNode(c)
-
-	cfg := config.Mainnet
-	forks := config.MainnetForks
-	if *testnet {
-		cfg = config.Testnet
-		forks = config.TestnetForks
-		if *seed == "seeds.lthn.io:36942" {
-			*seed = "localhost:46942"
-		}
-	}
-
-	ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt)
-	defer cancel()
-
-	// Start P2P sync in background.
-	go syncLoop(ctx, c, &cfg, forks, *seed)
-
-	status := tui.NewStatusModel(node)
-	explorer := tui.NewExplorerModel(c)
-	hints := tui.NewKeyHintsModel()
-
-	frame := cli.NewFrame("HCF")
-	frame.Header(status)
-	frame.Content(explorer)
-	frame.Footer(hints)
-	frame.Run()
-}
-
-func syncLoop(ctx context.Context, c *chain.Chain, cfg *config.ChainConfig, forks []config.HardFork, seed string) {
-	opts := chain.SyncOptions{
-		VerifySignatures: false,
-		Forks:            forks,
-	}
-
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		default:
-		}
-
-		if err := syncOnce(ctx, c, cfg, opts, seed); err != nil {
-			log.Printf("sync: %v (retrying in 10s)", err)
-			select {
-			case <-ctx.Done():
-				return
-			case <-time.After(10 * time.Second):
-			}
-			continue
-		}
-
-		// Synced -- wait before polling again.
-		select {
-		case <-ctx.Done():
-			return
-		case <-time.After(30 * time.Second):
-		}
-	}
-}
-
-func syncOnce(ctx context.Context, c *chain.Chain, cfg *config.ChainConfig, opts chain.SyncOptions, seed string) error {
-	conn, err := net.DialTimeout("tcp", seed, 10*time.Second)
-	if err != nil {
-		return fmt.Errorf("dial %s: %w", seed, err)
-	}
-	defer conn.Close()
-
-	lc := levin.NewConnection(conn)
-
-	var peerIDBuf [8]byte
-	rand.Read(peerIDBuf[:])
-	peerID := binary.LittleEndian.Uint64(peerIDBuf[:])
-
-	localHeight, _ := c.Height()
-
-	req := p2p.HandshakeRequest{
-		NodeData: p2p.NodeData{
-			NetworkID: cfg.NetworkID,
-			PeerID:    peerID,
-			LocalTime: time.Now().Unix(),
-			MyPort:    0,
-		},
-		PayloadData: p2p.CoreSyncData{
-			CurrentHeight:  localHeight,
-			ClientVersion:  config.ClientVersion,
-			NonPruningMode: true,
-		},
-	}
-	payload, err := p2p.EncodeHandshakeRequest(&req)
-	if err != nil {
-		return fmt.Errorf("encode handshake: %w", err)
-	}
-	if err := lc.WritePacket(p2p.CommandHandshake, payload, true); err != nil {
-		return fmt.Errorf("write handshake: %w", err)
-	}
-
-	hdr, data, err := lc.ReadPacket()
-	if err != nil {
-		return fmt.Errorf("read handshake: %w", err)
-	}
-	if hdr.Command != uint32(p2p.CommandHandshake) {
-		return fmt.Errorf("unexpected command %d", hdr.Command)
-	}
-
-	var resp p2p.HandshakeResponse
-	if err := resp.Decode(data); err != nil {
-		return fmt.Errorf("decode handshake: %w", err)
-	}
-
-	localSync := p2p.CoreSyncData{
-		CurrentHeight:  localHeight,
-		ClientVersion:  config.ClientVersion,
-		NonPruningMode: true,
-	}
-	p2pConn := chain.NewLevinP2PConn(lc, resp.PayloadData.CurrentHeight, localSync)
-
-	return c.P2PSync(ctx, p2pConn, opts)
-}
-
-func defaultDataDir() string {
-	home, err := os.UserHomeDir()
-	if err != nil {
-		return ".lethean"
-	}
-	return filepath.Join(home, ".lethean", "chain")
-}