Code cleanup

blockchain/types/block.go

@@ -54,6 +54,8 @@ func CreateBlock(lastBlockHeader *BlockHeader, txs []*Transaction, minerEth comm
 		merkleHashes = append(merkleHashes, tx.Hash)
 	}
 	merkleHashes = append(merkleHashes, lastBlockHeader.Hash)
+
+	// we use timestamp as salt for block hash, because salt doesn't work in this merkle tree library for some reason
 	timestampBytes := make([]byte, 8)
 	binary.LittleEndian.PutUint64(timestampBytes, uint64(timestamp))
 	merkleHashes = append(merkleHashes, timestampBytes)

config/config.go

@@ -1,8 +1,6 @@
 package config
 
 import (
-	"fmt"
-
 	"github.com/spf13/viper"
 )
 
@@ -23,7 +21,6 @@ type Config struct {
 	Ethereum              EthereumConfig   `mapstructure:"ethereum"`
 	Filecoin              FilecoinConfig   `mapstructure:"filecoin"`
 	PubSub                PubSubConfig     `mapstructure:"pubsub"`
-	Store                 StoreConfig      `mapstructure:"store"`
 	ConsensusMinApprovals int              `mapstructure:"consensus_min_approvals"`
 	Redis                 RedisConfig      `mapstructure:"redis"`
 	CacheType             string           `mapstructure:"cache_type"`
@@ -51,11 +48,6 @@ type FilecoinConfig struct {
 type PubSubConfig struct {
 	ServiceTopicName string `mapstructure:"service_topic_name"`
 }
-
-type StoreConfig struct {
-	DatabaseURL string `mapstructure:"database_url"`
-}
-
 type RedisConfig struct {
 	Addr     string `mapstructure:"redis_addr"`
 	Password string `mapstructure:"redis_password"`
@@ -71,11 +63,6 @@ type BlockchainConfig struct {
 
 // NewConfig creates a new config based on default values or provided .env file
 func NewConfig(configPath string) (*Config, error) {
-	dbName := "dione"
-	username := "user"
-	password := "password"
-	dbURL := fmt.Sprintf("host=localhost user=%s password=%s dbname=%s sslmode=disable", username, password, dbName)
-
 	cfg := &Config{
 		ListenAddr:     "localhost",
 		ListenPort:     8000,
@@ -87,15 +74,12 @@ func NewConfig(configPath string) (*Config, error) {
 		PubSub: PubSubConfig{
 			ServiceTopicName: "dione",
 		},
-		Store: StoreConfig{
-			DatabaseURL: dbURL,
-		},
 		Redis: RedisConfig{
-			Addr:     "redisDB:6379",
+			Addr:     "localhost:6379",
 			Password: "",
 			DB:       0,
 		},
-		CacheType: "in-memory",
+		CacheType: "memory",
 	}
 
 	viper.SetConfigFile(configPath)

consensus/consensus_handler.go

@@ -51,7 +51,6 @@ type ConsensusHandler struct {
 	mempool        *pool.Mempool
 	blockchain     *blockchain.BlockChain
 	address        peer.ID
-	stateChangeChannels map[string]map[State][]chan bool
 }
 
 func NewConsensusHandler(
@@ -77,7 +76,6 @@ func NewConsensusHandler(
 		mempool:        mempool,
 		blockchain:     bc,
 		address:        h.ID(),
-		stateChangeChannels: map[string]map[State][]chan bool{},
 	}
 
 	pcm.psb.Hook(pubsub.PrePrepareMessageType, pcm.handlePrePrepare)
@@ -301,17 +299,6 @@ func (pcm *ConsensusHandler) onNewBeaconEntry(entry types2.BeaconEntry) {
 		}
 	}
 
-	for k, v := range pcm.stateChangeChannels {
-		for k1, j := range v {
-			for _, ch := range j {
-				ch <- true
-				close(ch)
-			}
-			delete(v, k1)
-		}
-		delete(pcm.stateChangeChannels, k)
-	}
-
 	minedBlock, err := pcm.miner.MineBlock(entry.Data, entry.Round)
 	if err != nil {
 		if errors.Is(err, blockchain.ErrNoTxForBlock) {

lib/net.go

@@ -1,8 +0,0 @@
-package lib
-
-import "encoding/base64"
-
-func BasicAuth(username, password string) string {
-	auth := username + ":" + password
-	return base64.StdEncoding.EncodeToString([]byte(auth))
-}

node/node_dep_providers.go

@@ -193,7 +193,6 @@ func provideAppFlags() *AppFlags {
 func provideConfig(flags *AppFlags) *config.Config {
 	if flags.ConfigPath == "" {
 		logrus.Fatal("no config path provided")
-
 	}
 
 	cfg, err := config.NewConfig(flags.ConfigPath)
@@ -252,7 +251,7 @@ func providePrivateKey(cfg *config.Config) crypto.PrivKey {
 
 func generatePrivateKey() (crypto.PrivKey, error) {
 	r := rand.Reader
-	// Creates a new RSA key pair for this host.
+	// Creates a new Ed25519 key pair for this host.
 	prvKey, _, err := crypto.GenerateKeyPairWithReader(crypto.Ed25519, 2048, r)
 	if err != nil {
 		return nil, err