Add storing prevhash to local db and logs

cmd/ingest/main.go

@@ -202,13 +202,15 @@ func getBlock(rpcClient *rpcclient.Client, height int) (*parser.Block, error) {
 
 
 func handleBlock(db *sql.DB, block *parser.Block) {
-
+	prevBlockHash := hex.EncodeToString(block.GetPrevHash())
 	blockHash := hex.EncodeToString(block.GetEncodableHash())
+	//blockHash := hex.EncodeToString(block.GetDisplayHash())
 	marshaledBlock, _ := proto.Marshal(block.ToCompact())
-
+	
 	err := storage.StoreBlock(
 		db,
 		block.GetHeight(),
+		prevBlockHash,
 		blockHash,
 		block.HasSaplingTransactions(),
 		marshaledBlock,

parser/block.go

@@ -93,12 +93,16 @@ func (b *Block) GetHeight() int {
 	return int(blockHeight)
 }
 
+func (b *Block) GetPrevHash() []byte {
+	return b.hdr.HashPrevBlock
+}
+
 func (b *Block) ToCompact() *walletrpc.CompactBlock {
 	compactBlock := &walletrpc.CompactBlock{
 		//TODO ProtoVersion: 1,
 		Height: uint64(b.GetHeight()),
-		Hash:   b.GetEncodableHash(),
 		PrevHash: b.hdr.HashPrevBlock,
+		Hash:   b.GetEncodableHash(),
 		Time:   b.hdr.Time,
 	}
 

storage/sqlite3.go

@@ -28,6 +28,7 @@ func CreateTables(conn *sql.DB) error {
 	blockTable := `
 		CREATE TABLE IF NOT EXISTS blocks (
 			block_height INTEGER PRIMARY KEY,
+			prev_hash TEXT,
 			block_hash TEXT,
 			sapling BOOL,
 			compact_encoding BLOB
@@ -121,15 +122,15 @@ func GetBlockRange(ctx context.Context, db *sql.DB, blockOut chan<- []byte, errO
 	errOut <- nil
 }
 
-func StoreBlock(conn *sql.DB, height int, hash string, sapling bool, encoded []byte) error {
-	insertBlock := "REPLACE INTO blocks (block_height, block_hash, sapling, compact_encoding) values (?, ?, ?, ?)"
+func StoreBlock(conn *sql.DB, height int, prev_hash string, hash string, sapling bool, encoded []byte) error {
+	insertBlock := "REPLACE INTO blocks (block_height, prev_hash, block_hash, sapling, compact_encoding) values ( ?, ?, ?, ?, ?)"
 
 	tx, err := conn.Begin()
 	if err != nil {
 		return errors.Wrap(err, fmt.Sprintf("creating db tx %d", height))
 	}
 
-	_, err = tx.Exec(insertBlock, height, hash, sapling, encoded)
+	_, err = tx.Exec(insertBlock, height, prev_hash, hash, sapling, encoded)
 	if err != nil {
 		return errors.Wrap(err, fmt.Sprintf("storing compact block %d", height))
 	}