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refactor(blockchain): clear redundancy code #81

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refactor(blockchain): clear redundancy code #81

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26 changes: 5 additions & 21 deletions blockchain.go
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Original file line number Diff line number Diff line change
Expand Up @@ -113,8 +113,7 @@ func (bc *Blockchain) AddBlock(block *Block) {
log.Panic(err)
}

lastHash := b.Get([]byte("l"))
lastBlockData := b.Get(lastHash)
lastBlockData := b.Get(bc.tip)
lastBlock := DeserializeBlock(lastBlockData)

if block.Height > lastBlock.Height {
Expand Down Expand Up @@ -197,7 +196,7 @@ func (bc *Blockchain) FindUTXO() map[string]TXOutputs {
return UTXO
}

// Iterator returns a BlockchainIterat
// Iterator returns a BlockchainIterator
func (bc *Blockchain) Iterator() *BlockchainIterator {
bci := &BlockchainIterator{bc.tip, bc.db}

Expand All @@ -210,8 +209,7 @@ func (bc *Blockchain) GetBestHeight() int {

err := bc.db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(blocksBucket))
lastHash := b.Get([]byte("l"))
blockData := b.Get(lastHash)
blockData := b.Get(bc.tip)
lastBlock = *DeserializeBlock(blockData)

return nil
Expand Down Expand Up @@ -277,24 +275,10 @@ func (bc *Blockchain) MineBlock(transactions []*Transaction) *Block {
}
}

err := bc.db.View(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(blocksBucket))
lastHash = b.Get([]byte("l"))

blockData := b.Get(lastHash)
block := DeserializeBlock(blockData)

lastHeight = block.Height

return nil
})
if err != nil {
log.Panic(err)
}

lastHeight = bc.GetBestHeight()
newBlock := NewBlock(transactions, lastHash, lastHeight+1)

err = bc.db.Update(func(tx *bolt.Tx) error {
err := bc.db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(blocksBucket))
err := b.Put(newBlock.Hash, newBlock.Serialize())
if err != nil {
Expand Down