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package historydb
import (
"fmt"
"github.com/gobuffalo/packr/v2"
"github.com/hermeznetwork/hermez-node/common"
"github.com/hermeznetwork/hermez-node/db"
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq" // driver for postgres DB
migrate "github.com/rubenv/sql-migrate"
"github.com/russross/meddler"
)
// HistoryDB persist the historic of the rollup
type HistoryDB struct {
db *sqlx.DB
}
// NewHistoryDB initialize the DB
func NewHistoryDB(port int, host, user, password, dbname string) (*HistoryDB, error) {
// Connect to DB
psqlconn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable", host, port, user, password, dbname)
hdb, err := sqlx.Connect("postgres", psqlconn)
if err != nil {
return nil, err
}
// Init meddler
db.InitMeddler()
meddler.Default = meddler.PostgreSQL
// Run DB migrations
migrations := &migrate.PackrMigrationSource{
Box: packr.New("history-migrations", "./migrations"),
}
if _, err := migrate.Exec(hdb.DB, "postgres", migrations, migrate.Up); err != nil {
return nil, err
}
return &HistoryDB{hdb}, nil
}
// AddBlock insert a block into the DB
func (hdb *HistoryDB) AddBlock(block *common.Block) error {
return meddler.Insert(hdb.db, "block", block)
}
// GetBlock retrieve a block from the DB, given a block number
func (hdb *HistoryDB) GetBlock(blockNum uint64) (*common.Block, error) {
block := &common.Block{}
err := meddler.QueryRow(
hdb.db, block,
"SELECT * FROM block WHERE eth_block_num = $1;", blockNum,
)
return block, err
}
// GetBlocks retrieve blocks from the DB, given a range of block numbers defined by from and to
func (hdb *HistoryDB) GetBlocks(from, to uint64) ([]*common.Block, error) {
var blocks []*common.Block
err := meddler.QueryAll(
hdb.db, &blocks,
"SELECT * FROM block WHERE $1 <= eth_block_num AND eth_block_num < $2",
from, to,
)
return blocks, err
}
// GetLastBlock retrieve the block with the highest block number from the DB
func (hdb *HistoryDB) GetLastBlock() (*common.Block, error) {
block := &common.Block{}
err := meddler.QueryRow(
hdb.db, block, "SELECT * FROM block ORDER BY eth_block_num DESC LIMIT 1;",
)
return block, err
}
// addBatches insert Bids into the DB
func (hdb *HistoryDB) addBatches(batches []common.Batch) error {
return db.BulkInsert(
hdb.db,
`INSERT INTO batch (
batch_num,
eth_block_num,
forger_addr,
fees_collected,
state_root,
num_accounts,
exit_root,
forge_l1_txs_num,
slot_num
) VALUES %s;`,
batches[:],
)
}
// GetBatches retrieve batches from the DB, given a range of batch numbers defined by from and to
func (hdb *HistoryDB) GetBatches(from, to common.BatchNum) ([]*common.Batch, error) {
var batches []*common.Batch
err := meddler.QueryAll(
hdb.db, &batches,
"SELECT * FROM batch WHERE $1 <= batch_num AND batch_num < $2",
from, to,
)
return batches, err
}
// GetLastBatchNum returns the BatchNum of the latest forged batch
func (hdb *HistoryDB) GetLastBatchNum() (common.BatchNum, error) {
row := hdb.db.QueryRow("SELECT batch_num FROM batch ORDER BY batch_num DESC LIMIT 1;")
var batchNum common.BatchNum
return batchNum, row.Scan(&batchNum)
}
// GetLastL1TxsNum returns the greatest ForgeL1TxsNum in the DB
func (hdb *HistoryDB) GetLastL1TxsNum() (uint32, error) {
row := hdb.db.QueryRow("SELECT MAX(forge_l1_txs_num) FROM batch;")
var lastL1TxsNum uint32
return lastL1TxsNum, row.Scan(&lastL1TxsNum)
}
// Reorg deletes all the information that was added into the DB after the lastValidBlock
func (hdb *HistoryDB) Reorg(lastValidBlock uint64) error {
_, err := hdb.db.Exec("DELETE FROM block WHERE eth_block_num > $1;", lastValidBlock)
return err
}
// SyncRollup stores all the data that can be changed / added on a block in the Rollup SC
func (hdb *HistoryDB) SyncRollup(
blockNum uint64,
l1txs []common.L1Tx,
l2txs []common.L2Tx,
registeredAccounts []common.Account,
exitTree common.ExitInfo,
withdrawals common.ExitInfo,
registeredTokens []common.Token,
batches []common.Batch,
vars *common.RollupVars,
) error {
// TODO: make all in a single DB commit
if err := hdb.addBatches(batches); err != nil {
return err
}
return nil
}
// SyncPoD stores all the data that can be changed / added on a block in the PoD SC
func (hdb *HistoryDB) SyncPoD(
blockNum uint64,
bids []common.Bid,
coordinators []common.Coordinator,
vars *common.AuctionVars,
) error {
return nil
}
// addBids insert Bids into the DB
func (hdb *HistoryDB) addBids(bids []common.Bid) error {
// TODO: check the coordinator info
return db.BulkInsert(
hdb.db,
"INSERT INTO bid (slot_num, forger_addr, bid_value, eth_block_num) VALUES %s",
bids[:],
)
}
// GetBidsBySlot return the bids for a specific slot
func (hdb *HistoryDB) GetBidsBySlot(slotNum common.SlotNum) ([]*common.Bid, error) {
var bids []*common.Bid
err := meddler.QueryAll(
hdb.db, &bids,
"SELECT * FROM bid WHERE $1 = slot_num;",
slotNum,
)
return bids, err
}
// Close frees the resources used by HistoryDB
func (hdb *HistoryDB) Close() error {
return hdb.db.Close()
}