arnaucube
arnaucube/hermez-nodePublic Self-hosted repository
hermez-node/db/historydb/historydb.go
db/historydb/historydb.goRaw
   1package historydb
   2
   3import (
   4	"database/sql"
   5	"errors"
   6	"fmt"
   7	"math"
   8	"math/big"
   9
  10	ethCommon "github.com/ethereum/go-ethereum/common"
  11	"github.com/hermeznetwork/hermez-node/common"
  12	"github.com/hermeznetwork/hermez-node/db"
  13	"github.com/iden3/go-iden3-crypto/babyjub"
  14	"github.com/jmoiron/sqlx"
  15
  16	//nolint:errcheck // driver for postgres DB
  17	_ "github.com/lib/pq"
  18	"github.com/russross/meddler"
  19)
  20
  21const (
  22	// OrderAsc indicates ascending order when using pagination
  23	OrderAsc = "ASC"
  24	// OrderDesc indicates descending order when using pagination
  25	OrderDesc = "DESC"
  26)
  27
  28// TODO(Edu): Document here how HistoryDB is kept consistent
  29
  30// HistoryDB persist the historic of the rollup
  31type HistoryDB struct {
  32	db *sqlx.DB
  33}
  34
  35// NewHistoryDB initialize the DB
  36func NewHistoryDB(db *sqlx.DB) *HistoryDB {
  37	return &HistoryDB{db: db}
  38}
  39
  40// DB returns a pointer to the L2DB.db. This method should be used only for
  41// internal testing purposes.
  42func (hdb *HistoryDB) DB() *sqlx.DB {
  43	return hdb.db
  44}
  45
  46// AddBlock insert a block into the DB
  47func (hdb *HistoryDB) AddBlock(block *common.Block) error { return hdb.addBlock(hdb.db, block) }
  48func (hdb *HistoryDB) addBlock(d meddler.DB, block *common.Block) error {
  49	return meddler.Insert(d, "block", block)
  50}
  51
  52// AddBlocks inserts blocks into the DB
  53func (hdb *HistoryDB) AddBlocks(blocks []common.Block) error {
  54	return hdb.addBlocks(hdb.db, blocks)
  55}
  56
  57func (hdb *HistoryDB) addBlocks(d meddler.DB, blocks []common.Block) error {
  58	return db.BulkInsert(
  59		d,
  60		`INSERT INTO block (
  61			eth_block_num,
  62			timestamp,
  63			hash
  64		) VALUES %s;`,
  65		blocks[:],
  66	)
  67}
  68
  69// GetBlock retrieve a block from the DB, given a block number
  70func (hdb *HistoryDB) GetBlock(blockNum int64) (*common.Block, error) {
  71	block := &common.Block{}
  72	err := meddler.QueryRow(
  73		hdb.db, block,
  74		"SELECT * FROM block WHERE eth_block_num = $1;", blockNum,
  75	)
  76	return block, err
  77}
  78
  79// GetAllBlocks retrieve all blocks from the DB
  80func (hdb *HistoryDB) GetAllBlocks() ([]common.Block, error) {
  81	var blocks []*common.Block
  82	err := meddler.QueryAll(
  83		hdb.db, &blocks,
  84		"SELECT * FROM block;",
  85	)
  86	return db.SlicePtrsToSlice(blocks).([]common.Block), err
  87}
  88
  89// GetBlocks retrieve blocks from the DB, given a range of block numbers defined by from and to
  90func (hdb *HistoryDB) GetBlocks(from, to int64) ([]common.Block, error) {
  91	var blocks []*common.Block
  92	err := meddler.QueryAll(
  93		hdb.db, &blocks,
  94		"SELECT * FROM block WHERE $1 <= eth_block_num AND eth_block_num < $2;",
  95		from, to,
  96	)
  97	return db.SlicePtrsToSlice(blocks).([]common.Block), err
  98}
  99
 100// GetLastBlock retrieve the block with the highest block number from the DB
 101func (hdb *HistoryDB) GetLastBlock() (*common.Block, error) {
 102	block := &common.Block{}
 103	err := meddler.QueryRow(
 104		hdb.db, block, "SELECT * FROM block ORDER BY eth_block_num DESC LIMIT 1;",
 105	)
 106	return block, err
 107}
 108
 109// AddBatch insert a Batch into the DB
 110func (hdb *HistoryDB) AddBatch(batch *common.Batch) error { return hdb.addBatch(hdb.db, batch) }
 111func (hdb *HistoryDB) addBatch(d meddler.DB, batch *common.Batch) error {
 112	// Calculate total collected fees in USD
 113	// Get IDs of collected tokens for fees
 114	tokenIDs := []common.TokenID{}
 115	for id := range batch.CollectedFees {
 116		tokenIDs = append(tokenIDs, id)
 117	}
 118	// Get USD value of the tokens
 119	type tokenPrice struct {
 120		ID       common.TokenID `meddler:"token_id"`
 121		USD      *float64       `meddler:"usd"`
 122		Decimals int            `meddler:"decimals"`
 123	}
 124	var tokenPrices []*tokenPrice
 125	if len(tokenIDs) > 0 {
 126		query, args, err := sqlx.In(
 127			"SELECT token_id, usd, decimals FROM token WHERE token_id IN (?)",
 128			tokenIDs,
 129		)
 130		if err != nil {
 131			return err
 132		}
 133		query = hdb.db.Rebind(query)
 134		if err := meddler.QueryAll(
 135			hdb.db, &tokenPrices, query, args...,
 136		); err != nil {
 137			return err
 138		}
 139	}
 140	// Calculate total collected
 141	var total float64
 142	for _, tokenPrice := range tokenPrices {
 143		if tokenPrice.USD == nil {
 144			continue
 145		}
 146		f := new(big.Float).SetInt(batch.CollectedFees[tokenPrice.ID])
 147		amount, _ := f.Float64()
 148		total += *tokenPrice.USD * (amount / math.Pow(10, float64(tokenPrice.Decimals))) //nolint decimals have to be ^10
 149	}
 150	batch.TotalFeesUSD = &total
 151	// Insert to DB
 152	return meddler.Insert(d, "batch", batch)
 153}
 154
 155// AddBatches insert Bids into the DB
 156func (hdb *HistoryDB) AddBatches(batches []common.Batch) error {
 157	return hdb.addBatches(hdb.db, batches)
 158}
 159func (hdb *HistoryDB) addBatches(d meddler.DB, batches []common.Batch) error {
 160	for i := 0; i < len(batches); i++ {
 161		if err := hdb.addBatch(d, &batches[i]); err != nil {
 162			return err
 163		}
 164	}
 165	return nil
 166}
 167
 168// GetBatchAPI return the batch with the given batchNum
 169func (hdb *HistoryDB) GetBatchAPI(batchNum common.BatchNum) (*BatchAPI, error) {
 170	batch := &BatchAPI{}
 171	return batch, meddler.QueryRow(
 172		hdb.db, batch,
 173		`SELECT batch.*, block.timestamp, block.hash
 174	 	FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num
 175	 	WHERE batch_num = $1;`, batchNum,
 176	)
 177}
 178
 179// GetBatchesAPI return the batches applying the given filters
 180func (hdb *HistoryDB) GetBatchesAPI(
 181	minBatchNum, maxBatchNum, slotNum *uint,
 182	forgerAddr *ethCommon.Address,
 183	fromItem, limit *uint, order string,
 184) ([]BatchAPI, uint64, error) {
 185	var query string
 186	var args []interface{}
 187	queryStr := `SELECT batch.*, block.timestamp, block.hash,
 188	count(*) OVER() AS total_items
 189	FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num `
 190	// Apply filters
 191	nextIsAnd := false
 192	// minBatchNum filter
 193	if minBatchNum != nil {
 194		if nextIsAnd {
 195			queryStr += "AND "
 196		} else {
 197			queryStr += "WHERE "
 198		}
 199		queryStr += "batch.batch_num > ? "
 200		args = append(args, minBatchNum)
 201		nextIsAnd = true
 202	}
 203	// maxBatchNum filter
 204	if maxBatchNum != nil {
 205		if nextIsAnd {
 206			queryStr += "AND "
 207		} else {
 208			queryStr += "WHERE "
 209		}
 210		queryStr += "batch.batch_num < ? "
 211		args = append(args, maxBatchNum)
 212		nextIsAnd = true
 213	}
 214	// slotNum filter
 215	if slotNum != nil {
 216		if nextIsAnd {
 217			queryStr += "AND "
 218		} else {
 219			queryStr += "WHERE "
 220		}
 221		queryStr += "batch.slot_num = ? "
 222		args = append(args, slotNum)
 223		nextIsAnd = true
 224	}
 225	// forgerAddr filter
 226	if forgerAddr != nil {
 227		if nextIsAnd {
 228			queryStr += "AND "
 229		} else {
 230			queryStr += "WHERE "
 231		}
 232		queryStr += "batch.forger_addr = ? "
 233		args = append(args, forgerAddr)
 234		nextIsAnd = true
 235	}
 236	// pagination
 237	if fromItem != nil {
 238		if nextIsAnd {
 239			queryStr += "AND "
 240		} else {
 241			queryStr += "WHERE "
 242		}
 243		if order == OrderAsc {
 244			queryStr += "batch.item_id >= ? "
 245		} else {
 246			queryStr += "batch.item_id <= ? "
 247		}
 248		args = append(args, fromItem)
 249	}
 250	queryStr += "ORDER BY batch.item_id "
 251	if order == OrderAsc {
 252		queryStr += " ASC "
 253	} else {
 254		queryStr += " DESC "
 255	}
 256	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 257	query = hdb.db.Rebind(queryStr)
 258	// log.Debug(query)
 259	batchPtrs := []*BatchAPI{}
 260	if err := meddler.QueryAll(hdb.db, &batchPtrs, query, args...); err != nil {
 261		return nil, 0, err
 262	}
 263	batches := db.SlicePtrsToSlice(batchPtrs).([]BatchAPI)
 264	if len(batches) == 0 {
 265		return nil, 0, sql.ErrNoRows
 266	}
 267	return batches, batches[0].TotalItems - uint64(len(batches)), nil
 268}
 269
 270// GetAllBatches retrieve all batches from the DB
 271func (hdb *HistoryDB) GetAllBatches() ([]common.Batch, error) {
 272	var batches []*common.Batch
 273	err := meddler.QueryAll(
 274		hdb.db, &batches,
 275		`SELECT batch.batch_num, batch.eth_block_num, batch.forger_addr, batch.fees_collected,
 276		 batch.fee_idxs_coordinator, batch.state_root, batch.num_accounts, batch.last_idx, batch.exit_root,
 277		 batch.forge_l1_txs_num, batch.slot_num, batch.total_fees_usd FROM batch;`,
 278	)
 279	return db.SlicePtrsToSlice(batches).([]common.Batch), err
 280}
 281
 282// GetBatches retrieve batches from the DB, given a range of batch numbers defined by from and to
 283func (hdb *HistoryDB) GetBatches(from, to common.BatchNum) ([]common.Batch, error) {
 284	var batches []*common.Batch
 285	err := meddler.QueryAll(
 286		hdb.db, &batches,
 287		"SELECT * FROM batch WHERE $1 <= batch_num AND batch_num < $2;",
 288		from, to,
 289	)
 290	return db.SlicePtrsToSlice(batches).([]common.Batch), err
 291}
 292
 293// GetLastBatchNum returns the BatchNum of the latest forged batch
 294func (hdb *HistoryDB) GetLastBatchNum() (common.BatchNum, error) {
 295	row := hdb.db.QueryRow("SELECT batch_num FROM batch ORDER BY batch_num DESC LIMIT 1;")
 296	var batchNum common.BatchNum
 297	return batchNum, row.Scan(&batchNum)
 298}
 299
 300// GetLastL1TxsNum returns the greatest ForgeL1TxsNum in the DB from forged
 301// batches.  If there's no batch in the DB (nil, nil) is returned.
 302func (hdb *HistoryDB) GetLastL1TxsNum() (*int64, error) {
 303	row := hdb.db.QueryRow("SELECT MAX(forge_l1_txs_num) FROM batch;")
 304	lastL1TxsNum := new(int64)
 305	return lastL1TxsNum, row.Scan(&lastL1TxsNum)
 306}
 307
 308// Reorg deletes all the information that was added into the DB after the
 309// lastValidBlock.  If lastValidBlock is negative, all block information is
 310// deleted.
 311func (hdb *HistoryDB) Reorg(lastValidBlock int64) error {
 312	var err error
 313	if lastValidBlock < 0 {
 314		_, err = hdb.db.Exec("DELETE FROM block;")
 315	} else {
 316		_, err = hdb.db.Exec("DELETE FROM block WHERE eth_block_num > $1;", lastValidBlock)
 317	}
 318	return err
 319}
 320
 321// SyncPoD stores all the data that can be changed / added on a block in the PoD SC
 322func (hdb *HistoryDB) SyncPoD(
 323	blockNum uint64,
 324	bids []common.Bid,
 325	coordinators []common.Coordinator,
 326	vars *common.AuctionVariables,
 327) error {
 328	return nil
 329}
 330
 331// AddBids insert Bids into the DB
 332func (hdb *HistoryDB) AddBids(bids []common.Bid) error { return hdb.addBids(hdb.db, bids) }
 333func (hdb *HistoryDB) addBids(d meddler.DB, bids []common.Bid) error {
 334	// TODO: check the coordinator info
 335	return db.BulkInsert(
 336		d,
 337		"INSERT INTO bid (slot_num, bid_value, eth_block_num, bidder_addr) VALUES %s;",
 338		bids[:],
 339	)
 340}
 341
 342// GetAllBids retrieve all bids from the DB
 343func (hdb *HistoryDB) GetAllBids() ([]common.Bid, error) {
 344	var bids []*common.Bid
 345	err := meddler.QueryAll(
 346		hdb.db, &bids,
 347		`SELECT bid.slot_num, bid.bid_value, bid.eth_block_num, bid.bidder_addr FROM bid;`,
 348	)
 349	return db.SlicePtrsToSlice(bids).([]common.Bid), err
 350}
 351
 352// GetBestBidAPI returns the best bid in specific slot by slotNum
 353func (hdb *HistoryDB) GetBestBidAPI(slotNum *int64) (BidAPI, error) {
 354	bid := &BidAPI{}
 355	err := meddler.QueryRow(
 356		hdb.db, bid, `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url 
 357		FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 358		INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr 
 359		WHERE slot_num = $1 ORDER BY item_id DESC LIMIT 1;`, slotNum,
 360	)
 361	return *bid, err
 362}
 363
 364// GetBestBidsAPI returns the best bid in specific slot by slotNum
 365func (hdb *HistoryDB) GetBestBidsAPI(
 366	minSlotNum, maxSlotNum *int64,
 367	bidderAddr *ethCommon.Address,
 368	limit *uint, order string,
 369) ([]BidAPI, uint64, error) {
 370	var query string
 371	var args []interface{}
 372	queryStr := `SELECT b.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 373	COUNT(*) OVER() AS total_items FROM (
 374	   SELECT slot_num, MAX(item_id) as maxitem 
 375	   FROM bid GROUP BY slot_num
 376	   )
 377	AS x INNER JOIN bid AS b ON b.item_id = x.maxitem
 378	INNER JOIN block ON b.eth_block_num = block.eth_block_num
 379	INNER JOIN coordinator ON b.bidder_addr = coordinator.bidder_addr 
 380	WHERE (b.slot_num >= ? AND b.slot_num <= ?)`
 381	args = append(args, minSlotNum)
 382	args = append(args, maxSlotNum)
 383	// Apply filters
 384	if bidderAddr != nil {
 385		queryStr += " AND b.bidder_addr = ? "
 386		args = append(args, bidderAddr)
 387	}
 388	queryStr += " ORDER BY b.slot_num "
 389	if order == OrderAsc {
 390		queryStr += "ASC "
 391	} else {
 392		queryStr += "DESC "
 393	}
 394	if limit != nil {
 395		queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 396	}
 397	query = hdb.db.Rebind(queryStr)
 398	bidPtrs := []*BidAPI{}
 399	if err := meddler.QueryAll(hdb.db, &bidPtrs, query, args...); err != nil {
 400		return nil, 0, err
 401	}
 402	// log.Debug(query)
 403	bids := db.SlicePtrsToSlice(bidPtrs).([]BidAPI)
 404	if len(bids) == 0 {
 405		return nil, 0, sql.ErrNoRows
 406	}
 407	return bids, bids[0].TotalItems - uint64(len(bids)), nil
 408}
 409
 410// GetBidsAPI return the bids applying the given filters
 411func (hdb *HistoryDB) GetBidsAPI(
 412	slotNum *int64, forgerAddr *ethCommon.Address,
 413	fromItem, limit *uint, order string,
 414) ([]BidAPI, uint64, error) {
 415	var query string
 416	var args []interface{}
 417	queryStr := `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 418	COUNT(*) OVER() AS total_items
 419	FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 420	INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr `
 421	// Apply filters
 422	nextIsAnd := false
 423	// slotNum filter
 424	if slotNum != nil {
 425		if nextIsAnd {
 426			queryStr += "AND "
 427		} else {
 428			queryStr += "WHERE "
 429		}
 430		queryStr += "bid.slot_num = ? "
 431		args = append(args, slotNum)
 432		nextIsAnd = true
 433	}
 434	// slotNum filter
 435	if forgerAddr != nil {
 436		if nextIsAnd {
 437			queryStr += "AND "
 438		} else {
 439			queryStr += "WHERE "
 440		}
 441		queryStr += "bid.bidder_addr = ? "
 442		args = append(args, forgerAddr)
 443		nextIsAnd = true
 444	}
 445	if fromItem != nil {
 446		if nextIsAnd {
 447			queryStr += "AND "
 448		} else {
 449			queryStr += "WHERE "
 450		}
 451		if order == OrderAsc {
 452			queryStr += "bid.item_id >= ? "
 453		} else {
 454			queryStr += "bid.item_id <= ? "
 455		}
 456		args = append(args, fromItem)
 457	}
 458	// pagination
 459	queryStr += "ORDER BY bid.item_id "
 460	if order == OrderAsc {
 461		queryStr += "ASC "
 462	} else {
 463		queryStr += "DESC "
 464	}
 465	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 466	query, argsQ, err := sqlx.In(queryStr, args...)
 467	if err != nil {
 468		return nil, 0, err
 469	}
 470	query = hdb.db.Rebind(query)
 471	bids := []*BidAPI{}
 472	if err := meddler.QueryAll(hdb.db, &bids, query, argsQ...); err != nil {
 473		return nil, 0, err
 474	}
 475	if len(bids) == 0 {
 476		return nil, 0, sql.ErrNoRows
 477	}
 478	return db.SlicePtrsToSlice(bids).([]BidAPI), bids[0].TotalItems - uint64(len(bids)), nil
 479}
 480
 481// AddCoordinators insert Coordinators into the DB
 482func (hdb *HistoryDB) AddCoordinators(coordinators []common.Coordinator) error {
 483	return hdb.addCoordinators(hdb.db, coordinators)
 484}
 485func (hdb *HistoryDB) addCoordinators(d meddler.DB, coordinators []common.Coordinator) error {
 486	return db.BulkInsert(
 487		d,
 488		"INSERT INTO coordinator (bidder_addr, forger_addr, eth_block_num, url) VALUES %s;",
 489		coordinators[:],
 490	)
 491}
 492
 493// AddExitTree insert Exit tree into the DB
 494func (hdb *HistoryDB) AddExitTree(exitTree []common.ExitInfo) error {
 495	return hdb.addExitTree(hdb.db, exitTree)
 496}
 497func (hdb *HistoryDB) addExitTree(d meddler.DB, exitTree []common.ExitInfo) error {
 498	return db.BulkInsert(
 499		d,
 500		"INSERT INTO exit_tree (batch_num, account_idx, merkle_proof, balance, "+
 501			"instant_withdrawn, delayed_withdraw_request, delayed_withdrawn) VALUES %s;",
 502		exitTree[:],
 503	)
 504}
 505
 506func (hdb *HistoryDB) updateExitTree(d sqlx.Ext, blockNum int64,
 507	rollupWithdrawals []common.WithdrawInfo, wDelayerWithdrawals []common.WDelayerTransfer) error {
 508	type withdrawal struct {
 509		BatchNum               int64              `db:"batch_num"`
 510		AccountIdx             int64              `db:"account_idx"`
 511		InstantWithdrawn       *int64             `db:"instant_withdrawn"`
 512		DelayedWithdrawRequest *int64             `db:"delayed_withdraw_request"`
 513		DelayedWithdrawn       *int64             `db:"delayed_withdrawn"`
 514		Owner                  *ethCommon.Address `db:"owner"`
 515		Token                  *ethCommon.Address `db:"token"`
 516	}
 517	withdrawals := make([]withdrawal, len(rollupWithdrawals)+len(wDelayerWithdrawals))
 518	for i := range rollupWithdrawals {
 519		info := &rollupWithdrawals[i]
 520		withdrawals[i] = withdrawal{
 521			BatchNum:   int64(info.NumExitRoot),
 522			AccountIdx: int64(info.Idx),
 523		}
 524		if info.InstantWithdraw {
 525			withdrawals[i].InstantWithdrawn = &blockNum
 526		} else {
 527			withdrawals[i].DelayedWithdrawRequest = &blockNum
 528			withdrawals[i].Owner = &info.Owner
 529			withdrawals[i].Token = &info.Token
 530		}
 531	}
 532	for i := range wDelayerWithdrawals {
 533		info := &wDelayerWithdrawals[i]
 534		withdrawals[len(rollupWithdrawals)+i] = withdrawal{
 535			DelayedWithdrawn: &blockNum,
 536			Owner:            &info.Owner,
 537			Token:            &info.Token,
 538		}
 539	}
 540	// In VALUES we set an initial row of NULLs to set the types of each
 541	// variable passed as argument
 542	query := `
 543		UPDATE exit_tree e SET
 544			instant_withdrawn = d.instant_withdrawn,
 545			delayed_withdraw_request = CASE
 546				WHEN e.delayed_withdraw_request IS NOT NULL THEN e.delayed_withdraw_request
 547				ELSE d.delayed_withdraw_request
 548			END,
 549			delayed_withdrawn = d.delayed_withdrawn,
 550			owner = d.owner,
 551			token = d.token
 552		FROM (VALUES
 553			(NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BYTEA, NULL::::BYTEA),
 554			(:batch_num,
 555			 :account_idx,
 556			 :instant_withdrawn,
 557			 :delayed_withdraw_request,
 558			 :delayed_withdrawn,
 559			 :owner,
 560			 :token)
 561		) as d (batch_num, account_idx, instant_withdrawn, delayed_withdraw_request, delayed_withdrawn, owner, token)
 562		WHERE
 563			(d.batch_num IS NOT NULL AND e.batch_num = d.batch_num AND e.account_idx = d.account_idx) OR
 564			(d.delayed_withdrawn IS NOT NULL AND e.delayed_withdrawn IS NULL AND e.owner = d.owner AND e.token = d.token)
 565		`
 566	if len(withdrawals) > 0 {
 567		if _, err := sqlx.NamedQuery(d, query, withdrawals); err != nil {
 568			return err
 569		}
 570	}
 571
 572	return nil
 573}
 574
 575// AddToken insert a token into the DB
 576func (hdb *HistoryDB) AddToken(token *common.Token) error {
 577	return meddler.Insert(hdb.db, "token", token)
 578}
 579
 580// AddTokens insert tokens into the DB
 581func (hdb *HistoryDB) AddTokens(tokens []common.Token) error { return hdb.addTokens(hdb.db, tokens) }
 582func (hdb *HistoryDB) addTokens(d meddler.DB, tokens []common.Token) error {
 583	return db.BulkInsert(
 584		d,
 585		`INSERT INTO token (
 586			token_id,
 587			eth_block_num,
 588			eth_addr,
 589			name,
 590			symbol,
 591			decimals
 592		) VALUES %s;`,
 593		tokens[:],
 594	)
 595}
 596
 597// UpdateTokenValue updates the USD value of a token
 598func (hdb *HistoryDB) UpdateTokenValue(tokenSymbol string, value float64) error {
 599	_, err := hdb.db.Exec(
 600		"UPDATE token SET usd = $1 WHERE symbol = $2;",
 601		value, tokenSymbol,
 602	)
 603	return err
 604}
 605
 606// GetToken returns a token from the DB given a TokenID
 607func (hdb *HistoryDB) GetToken(tokenID common.TokenID) (*TokenWithUSD, error) {
 608	token := &TokenWithUSD{}
 609	err := meddler.QueryRow(
 610		hdb.db, token, `SELECT * FROM token WHERE token_id = $1;`, tokenID,
 611	)
 612	return token, err
 613}
 614
 615// GetAllTokens returns all tokens from the DB
 616func (hdb *HistoryDB) GetAllTokens() ([]TokenWithUSD, error) {
 617	var tokens []*TokenWithUSD
 618	err := meddler.QueryAll(
 619		hdb.db, &tokens,
 620		"SELECT * FROM token ORDER BY token_id;",
 621	)
 622	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), err
 623}
 624
 625// GetTokens returns a list of tokens from the DB
 626func (hdb *HistoryDB) GetTokens(
 627	ids []common.TokenID, symbols []string, name string, fromItem,
 628	limit *uint, order string,
 629) ([]TokenWithUSD, uint64, error) {
 630	var query string
 631	var args []interface{}
 632	queryStr := `SELECT * , COUNT(*) OVER() AS total_items FROM token `
 633	// Apply filters
 634	nextIsAnd := false
 635	if len(ids) > 0 {
 636		queryStr += "WHERE token_id IN (?) "
 637		nextIsAnd = true
 638		args = append(args, ids)
 639	}
 640	if len(symbols) > 0 {
 641		if nextIsAnd {
 642			queryStr += "AND "
 643		} else {
 644			queryStr += "WHERE "
 645		}
 646		queryStr += "symbol IN (?) "
 647		args = append(args, symbols)
 648		nextIsAnd = true
 649	}
 650	if name != "" {
 651		if nextIsAnd {
 652			queryStr += "AND "
 653		} else {
 654			queryStr += "WHERE "
 655		}
 656		queryStr += "name ~ ? "
 657		args = append(args, name)
 658		nextIsAnd = true
 659	}
 660	if fromItem != nil {
 661		if nextIsAnd {
 662			queryStr += "AND "
 663		} else {
 664			queryStr += "WHERE "
 665		}
 666		if order == OrderAsc {
 667			queryStr += "item_id >= ? "
 668		} else {
 669			queryStr += "item_id <= ? "
 670		}
 671		args = append(args, fromItem)
 672	}
 673	// pagination
 674	queryStr += "ORDER BY item_id "
 675	if order == OrderAsc {
 676		queryStr += "ASC "
 677	} else {
 678		queryStr += "DESC "
 679	}
 680	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 681	query, argsQ, err := sqlx.In(queryStr, args...)
 682	if err != nil {
 683		return nil, 0, err
 684	}
 685	query = hdb.db.Rebind(query)
 686	tokens := []*TokenWithUSD{}
 687	if err := meddler.QueryAll(hdb.db, &tokens, query, argsQ...); err != nil {
 688		return nil, 0, err
 689	}
 690	if len(tokens) == 0 {
 691		return nil, 0, sql.ErrNoRows
 692	}
 693	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), uint64(len(tokens)) - tokens[0].TotalItems, nil
 694}
 695
 696// GetTokenSymbols returns all the token symbols from the DB
 697func (hdb *HistoryDB) GetTokenSymbols() ([]string, error) {
 698	var tokenSymbols []string
 699	rows, err := hdb.db.Query("SELECT symbol FROM token;")
 700	if err != nil {
 701		return nil, err
 702	}
 703	sym := new(string)
 704	for rows.Next() {
 705		err = rows.Scan(sym)
 706		if err != nil {
 707			return nil, err
 708		}
 709		tokenSymbols = append(tokenSymbols, *sym)
 710	}
 711	return tokenSymbols, nil
 712}
 713
 714// AddAccounts insert accounts into the DB
 715func (hdb *HistoryDB) AddAccounts(accounts []common.Account) error {
 716	return hdb.addAccounts(hdb.db, accounts)
 717}
 718func (hdb *HistoryDB) addAccounts(d meddler.DB, accounts []common.Account) error {
 719	return db.BulkInsert(
 720		d,
 721		`INSERT INTO account (
 722			idx,
 723			token_id,
 724			batch_num,
 725			bjj,
 726			eth_addr
 727		) VALUES %s;`,
 728		accounts[:],
 729	)
 730}
 731
 732// GetAllAccounts returns a list of accounts from the DB
 733func (hdb *HistoryDB) GetAllAccounts() ([]common.Account, error) {
 734	var accs []*common.Account
 735	err := meddler.QueryAll(
 736		hdb.db, &accs,
 737		"SELECT * FROM account ORDER BY idx;",
 738	)
 739	return db.SlicePtrsToSlice(accs).([]common.Account), err
 740}
 741
 742// AddL1Txs inserts L1 txs to the DB. USD and LoadAmountUSD will be set automatically before storing the tx.
 743// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 744// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 745func (hdb *HistoryDB) AddL1Txs(l1txs []common.L1Tx) error { return hdb.addL1Txs(hdb.db, l1txs) }
 746
 747// addL1Txs inserts L1 txs to the DB. USD and LoadAmountUSD will be set automatically before storing the tx.
 748// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 749// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 750func (hdb *HistoryDB) addL1Txs(d meddler.DB, l1txs []common.L1Tx) error {
 751	txs := []txWrite{}
 752	for i := 0; i < len(l1txs); i++ {
 753		af := new(big.Float).SetInt(l1txs[i].Amount)
 754		amountFloat, _ := af.Float64()
 755		laf := new(big.Float).SetInt(l1txs[i].LoadAmount)
 756		loadAmountFloat, _ := laf.Float64()
 757		txs = append(txs, txWrite{
 758			// Generic
 759			IsL1:        true,
 760			TxID:        l1txs[i].TxID,
 761			Type:        l1txs[i].Type,
 762			Position:    l1txs[i].Position,
 763			FromIdx:     &l1txs[i].FromIdx,
 764			ToIdx:       l1txs[i].ToIdx,
 765			Amount:      l1txs[i].Amount,
 766			AmountFloat: amountFloat,
 767			TokenID:     l1txs[i].TokenID,
 768			BatchNum:    l1txs[i].BatchNum,
 769			EthBlockNum: l1txs[i].EthBlockNum,
 770			// L1
 771			ToForgeL1TxsNum: l1txs[i].ToForgeL1TxsNum,
 772			UserOrigin:      &l1txs[i].UserOrigin,
 773			FromEthAddr:     &l1txs[i].FromEthAddr,
 774			FromBJJ:         l1txs[i].FromBJJ,
 775			LoadAmount:      l1txs[i].LoadAmount,
 776			LoadAmountFloat: &loadAmountFloat,
 777		})
 778	}
 779	return hdb.addTxs(d, txs)
 780}
 781
 782// AddL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 783func (hdb *HistoryDB) AddL2Txs(l2txs []common.L2Tx) error { return hdb.addL2Txs(hdb.db, l2txs) }
 784
 785// addL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 786func (hdb *HistoryDB) addL2Txs(d meddler.DB, l2txs []common.L2Tx) error {
 787	txs := []txWrite{}
 788	for i := 0; i < len(l2txs); i++ {
 789		f := new(big.Float).SetInt(l2txs[i].Amount)
 790		amountFloat, _ := f.Float64()
 791		txs = append(txs, txWrite{
 792			// Generic
 793			IsL1:        false,
 794			TxID:        l2txs[i].TxID,
 795			Type:        l2txs[i].Type,
 796			Position:    l2txs[i].Position,
 797			FromIdx:     &l2txs[i].FromIdx,
 798			ToIdx:       l2txs[i].ToIdx,
 799			Amount:      l2txs[i].Amount,
 800			AmountFloat: amountFloat,
 801			BatchNum:    &l2txs[i].BatchNum,
 802			EthBlockNum: l2txs[i].EthBlockNum,
 803			// L2
 804			Fee:   &l2txs[i].Fee,
 805			Nonce: &l2txs[i].Nonce,
 806		})
 807	}
 808	return hdb.addTxs(d, txs)
 809}
 810
 811func (hdb *HistoryDB) addTxs(d meddler.DB, txs []txWrite) error {
 812	return db.BulkInsert(
 813		d,
 814		`INSERT INTO tx (
 815			is_l1,
 816			id,
 817			type,
 818			position,
 819			from_idx,
 820			to_idx,
 821			amount,
 822			amount_f,
 823			token_id,
 824			batch_num,
 825			eth_block_num,
 826			to_forge_l1_txs_num,
 827			user_origin,
 828			from_eth_addr,
 829			from_bjj,
 830			load_amount,
 831			load_amount_f,
 832			fee,
 833			nonce
 834		) VALUES %s;`,
 835		txs[:],
 836	)
 837}
 838
 839// // GetTxs returns a list of txs from the DB
 840// func (hdb *HistoryDB) GetTxs() ([]common.Tx, error) {
 841// 	var txs []*common.Tx
 842// 	err := meddler.QueryAll(
 843// 		hdb.db, &txs,
 844// 		`SELECT * FROM tx
 845// 		ORDER BY (batch_num, position) ASC`,
 846// 	)
 847// 	return db.SlicePtrsToSlice(txs).([]common.Tx), err
 848// }
 849
 850// GetHistoryTx returns a tx from the DB given a TxID
 851func (hdb *HistoryDB) GetHistoryTx(txID common.TxID) (*TxAPI, error) {
 852	tx := &TxAPI{}
 853	err := meddler.QueryRow(
 854		hdb.db, tx, `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 855		hez_idx(tx.from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 856		hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 857		tx.amount, tx.token_id, tx.amount_usd, 
 858		tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 859		tx.load_amount, tx.load_amount_usd, tx.fee, tx.fee_usd, tx.nonce,
 860		token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 861		token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 862		token.usd_update, block.timestamp
 863		FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 864		INNER JOIN block ON tx.eth_block_num = block.eth_block_num 
 865		WHERE tx.id = $1;`, txID,
 866	)
 867	return tx, err
 868}
 869
 870// GetHistoryTxs returns a list of txs from the DB using the HistoryTx struct
 871// and pagination info
 872func (hdb *HistoryDB) GetHistoryTxs(
 873	ethAddr *ethCommon.Address, bjj *babyjub.PublicKey,
 874	tokenID *common.TokenID, idx *common.Idx, batchNum *uint, txType *common.TxType,
 875	fromItem, limit *uint, order string,
 876) ([]TxAPI, uint64, error) {
 877	if ethAddr != nil && bjj != nil {
 878		return nil, 0, errors.New("ethAddr and bjj are incompatible")
 879	}
 880	var query string
 881	var args []interface{}
 882	queryStr := `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 883	hez_idx(tx.from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 884	hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 885	tx.amount, tx.token_id, tx.amount_usd, 
 886	tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 887	tx.load_amount, tx.load_amount_usd, tx.fee, tx.fee_usd, tx.nonce,
 888	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 889	token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 890	token.usd_update, block.timestamp, count(*) OVER() AS total_items 
 891	FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 892	INNER JOIN block ON tx.eth_block_num = block.eth_block_num `
 893	// Apply filters
 894	nextIsAnd := false
 895	// ethAddr filter
 896	if ethAddr != nil {
 897		queryStr = `WITH acc AS 
 898		(select idx from account where eth_addr = ?) ` + queryStr
 899		queryStr += ", acc WHERE (tx.from_idx IN(acc.idx) OR tx.to_idx IN(acc.idx)) "
 900		nextIsAnd = true
 901		args = append(args, ethAddr)
 902	} else if bjj != nil { // bjj filter
 903		queryStr = `WITH acc AS 
 904		(select idx from account where bjj = ?) ` + queryStr
 905		queryStr += ", acc WHERE (tx.from_idx IN(acc.idx) OR tx.to_idx IN(acc.idx)) "
 906		nextIsAnd = true
 907		args = append(args, bjj)
 908	}
 909	// tokenID filter
 910	if tokenID != nil {
 911		if nextIsAnd {
 912			queryStr += "AND "
 913		} else {
 914			queryStr += "WHERE "
 915		}
 916		queryStr += "tx.token_id = ? "
 917		args = append(args, tokenID)
 918		nextIsAnd = true
 919	}
 920	// idx filter
 921	if idx != nil {
 922		if nextIsAnd {
 923			queryStr += "AND "
 924		} else {
 925			queryStr += "WHERE "
 926		}
 927		queryStr += "(tx.from_idx = ? OR tx.to_idx = ?) "
 928		args = append(args, idx, idx)
 929		nextIsAnd = true
 930	}
 931	// batchNum filter
 932	if batchNum != nil {
 933		if nextIsAnd {
 934			queryStr += "AND "
 935		} else {
 936			queryStr += "WHERE "
 937		}
 938		queryStr += "tx.batch_num = ? "
 939		args = append(args, batchNum)
 940		nextIsAnd = true
 941	}
 942	// txType filter
 943	if txType != nil {
 944		if nextIsAnd {
 945			queryStr += "AND "
 946		} else {
 947			queryStr += "WHERE "
 948		}
 949		queryStr += "tx.type = ? "
 950		args = append(args, txType)
 951		nextIsAnd = true
 952	}
 953	if fromItem != nil {
 954		if nextIsAnd {
 955			queryStr += "AND "
 956		} else {
 957			queryStr += "WHERE "
 958		}
 959		if order == OrderAsc {
 960			queryStr += "tx.item_id >= ? "
 961		} else {
 962			queryStr += "tx.item_id <= ? "
 963		}
 964		args = append(args, fromItem)
 965		nextIsAnd = true
 966	}
 967	if nextIsAnd {
 968		queryStr += "AND "
 969	} else {
 970		queryStr += "WHERE "
 971	}
 972	queryStr += "tx.batch_num IS NOT NULL "
 973
 974	// pagination
 975	queryStr += "ORDER BY tx.item_id "
 976	if order == OrderAsc {
 977		queryStr += " ASC "
 978	} else {
 979		queryStr += " DESC "
 980	}
 981	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 982	query = hdb.db.Rebind(queryStr)
 983	// log.Debug(query)
 984	txsPtrs := []*TxAPI{}
 985	if err := meddler.QueryAll(hdb.db, &txsPtrs, query, args...); err != nil {
 986		return nil, 0, err
 987	}
 988	txs := db.SlicePtrsToSlice(txsPtrs).([]TxAPI)
 989	if len(txs) == 0 {
 990		return nil, 0, sql.ErrNoRows
 991	}
 992	return txs, txs[0].TotalItems - uint64(len(txs)), nil
 993}
 994
 995// GetAllExits returns all exit from the DB
 996func (hdb *HistoryDB) GetAllExits() ([]common.ExitInfo, error) {
 997	var exits []*common.ExitInfo
 998	err := meddler.QueryAll(
 999		hdb.db, &exits,
1000		`SELECT exit_tree.batch_num, exit_tree.account_idx, exit_tree.merkle_proof,
1001		exit_tree.balance, exit_tree.instant_withdrawn, exit_tree.delayed_withdraw_request,
1002		exit_tree.delayed_withdrawn FROM exit_tree;`,
1003	)
1004	return db.SlicePtrsToSlice(exits).([]common.ExitInfo), err
1005}
1006
1007// GetExitAPI returns a exit from the DB
1008func (hdb *HistoryDB) GetExitAPI(batchNum *uint, idx *common.Idx) (*ExitAPI, error) {
1009	exit := &ExitAPI{}
1010	err := meddler.QueryRow(
1011		hdb.db, exit, `SELECT exit_tree.item_id, exit_tree.batch_num,
1012		hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1013		exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1014		exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1015		token.token_id, token.item_id AS token_item_id, 
1016		token.eth_block_num AS token_block, token.eth_addr, token.name, token.symbol, 
1017		token.decimals, token.usd, token.usd_update
1018		FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1019		INNER JOIN token ON account.token_id = token.token_id 
1020		WHERE exit_tree.batch_num = $1 AND exit_tree.account_idx = $2;`, batchNum, idx,
1021	)
1022	return exit, err
1023}
1024
1025// GetExitsAPI returns a list of exits from the DB and pagination info
1026func (hdb *HistoryDB) GetExitsAPI(
1027	ethAddr *ethCommon.Address, bjj *babyjub.PublicKey, tokenID *common.TokenID,
1028	idx *common.Idx, batchNum *uint, onlyPendingWithdraws *bool,
1029	fromItem, limit *uint, order string,
1030) ([]ExitAPI, uint64, error) {
1031	if ethAddr != nil && bjj != nil {
1032		return nil, 0, errors.New("ethAddr and bjj are incompatible")
1033	}
1034	var query string
1035	var args []interface{}
1036	queryStr := `SELECT exit_tree.item_id, exit_tree.batch_num,
1037	hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1038	exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1039	exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1040	token.token_id, token.item_id AS token_item_id,
1041	token.eth_block_num AS token_block, token.eth_addr, token.name, token.symbol,
1042	token.decimals, token.usd, token.usd_update, COUNT(*) OVER() AS total_items
1043	FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1044	INNER JOIN token ON account.token_id = token.token_id `
1045	// Apply filters
1046	nextIsAnd := false
1047	// ethAddr filter
1048	if ethAddr != nil {
1049		queryStr += "WHERE account.eth_addr = ? "
1050		nextIsAnd = true
1051		args = append(args, ethAddr)
1052	} else if bjj != nil { // bjj filter
1053		queryStr += "WHERE account.bjj = ? "
1054		nextIsAnd = true
1055		args = append(args, bjj)
1056	}
1057	// tokenID filter
1058	if tokenID != nil {
1059		if nextIsAnd {
1060			queryStr += "AND "
1061		} else {
1062			queryStr += "WHERE "
1063		}
1064		queryStr += "account.token_id = ? "
1065		args = append(args, tokenID)
1066		nextIsAnd = true
1067	}
1068	// idx filter
1069	if idx != nil {
1070		if nextIsAnd {
1071			queryStr += "AND "
1072		} else {
1073			queryStr += "WHERE "
1074		}
1075		queryStr += "exit_tree.account_idx = ? "
1076		args = append(args, idx)
1077		nextIsAnd = true
1078	}
1079	// batchNum filter
1080	if batchNum != nil {
1081		if nextIsAnd {
1082			queryStr += "AND "
1083		} else {
1084			queryStr += "WHERE "
1085		}
1086		queryStr += "exit_tree.batch_num = ? "
1087		args = append(args, batchNum)
1088		nextIsAnd = true
1089	}
1090	// onlyPendingWithdraws
1091	if onlyPendingWithdraws != nil {
1092		if *onlyPendingWithdraws {
1093			if nextIsAnd {
1094				queryStr += "AND "
1095			} else {
1096				queryStr += "WHERE "
1097			}
1098			queryStr += "(exit_tree.instant_withdrawn IS NULL AND exit_tree.delayed_withdrawn IS NULL) "
1099			nextIsAnd = true
1100		}
1101	}
1102	if fromItem != nil {
1103		if nextIsAnd {
1104			queryStr += "AND "
1105		} else {
1106			queryStr += "WHERE "
1107		}
1108		if order == OrderAsc {
1109			queryStr += "exit_tree.item_id >= ? "
1110		} else {
1111			queryStr += "exit_tree.item_id <= ? "
1112		}
1113		args = append(args, fromItem)
1114		// nextIsAnd = true
1115	}
1116	// pagination
1117	queryStr += "ORDER BY exit_tree.item_id "
1118	if order == OrderAsc {
1119		queryStr += " ASC "
1120	} else {
1121		queryStr += " DESC "
1122	}
1123	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1124	query = hdb.db.Rebind(queryStr)
1125	// log.Debug(query)
1126	exits := []*ExitAPI{}
1127	if err := meddler.QueryAll(hdb.db, &exits, query, args...); err != nil {
1128		return nil, 0, err
1129	}
1130	if len(exits) == 0 {
1131		return nil, 0, sql.ErrNoRows
1132	}
1133	return db.SlicePtrsToSlice(exits).([]ExitAPI), exits[0].TotalItems - uint64(len(exits)), nil
1134}
1135
1136// GetAllL1UserTxs returns all L1UserTxs from the DB
1137func (hdb *HistoryDB) GetAllL1UserTxs() ([]common.L1Tx, error) {
1138	var txs []*common.L1Tx
1139	err := meddler.QueryAll(
1140		hdb.db, &txs,
1141		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1142		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id, tx.amount,
1143		tx.load_amount, tx.eth_block_num, tx.type, tx.batch_num
1144		FROM tx WHERE is_l1 = TRUE AND user_origin = TRUE;`,
1145	)
1146	return db.SlicePtrsToSlice(txs).([]common.L1Tx), err
1147}
1148
1149// GetAllL1CoordinatorTxs returns all L1CoordinatorTxs from the DB
1150func (hdb *HistoryDB) GetAllL1CoordinatorTxs() ([]common.L1Tx, error) {
1151	var txs []*common.L1Tx
1152	err := meddler.QueryAll(
1153		hdb.db, &txs,
1154		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1155		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id, tx.amount,
1156		tx.load_amount, tx.eth_block_num, tx.type, tx.batch_num
1157		FROM tx WHERE is_l1 = TRUE AND user_origin = FALSE;`,
1158	)
1159	return db.SlicePtrsToSlice(txs).([]common.L1Tx), err
1160}
1161
1162// GetAllL2Txs returns all L2Txs from the DB
1163func (hdb *HistoryDB) GetAllL2Txs() ([]common.L2Tx, error) {
1164	var txs []*common.L2Tx
1165	err := meddler.QueryAll(
1166		hdb.db, &txs,
1167		`SELECT tx.id, tx.batch_num, tx.position,
1168		tx.from_idx, tx.to_idx, tx.amount, tx.fee, tx.nonce,
1169		tx.type, tx.eth_block_num
1170		FROM tx WHERE is_l1 = FALSE;`,
1171	)
1172	return db.SlicePtrsToSlice(txs).([]common.L2Tx), err
1173}
1174
1175// GetL1UserTxs gets L1 User Txs to be forged in the L1Batch with toForgeL1TxsNum.
1176func (hdb *HistoryDB) GetL1UserTxs(toForgeL1TxsNum int64) ([]common.L1Tx, error) {
1177	var txs []*common.L1Tx
1178	err := meddler.QueryAll(
1179		hdb.db, &txs,
1180		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1181		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id, tx.amount,
1182		tx.load_amount, tx.eth_block_num, tx.type, tx.batch_num
1183		FROM tx WHERE to_forge_l1_txs_num = $1 AND is_l1 = TRUE AND user_origin = TRUE;`,
1184		toForgeL1TxsNum,
1185	)
1186	return db.SlicePtrsToSlice(txs).([]common.L1Tx), err
1187}
1188
1189// TODO: Think about chaning all the queries that return a last value, to queries that return the next valid value.
1190
1191// GetLastTxsPosition for a given to_forge_l1_txs_num
1192func (hdb *HistoryDB) GetLastTxsPosition(toForgeL1TxsNum int64) (int, error) {
1193	row := hdb.db.QueryRow("SELECT MAX(position) FROM tx WHERE to_forge_l1_txs_num = $1;", toForgeL1TxsNum)
1194	var lastL1TxsPosition int
1195	return lastL1TxsPosition, row.Scan(&lastL1TxsPosition)
1196}
1197
1198// GetSCVars returns the rollup, auction and wdelayer smart contracts variables at their last update.
1199func (hdb *HistoryDB) GetSCVars() (*common.RollupVariables, *common.AuctionVariables,
1200	*common.WDelayerVariables, error) {
1201	var rollup common.RollupVariables
1202	var auction common.AuctionVariables
1203	var wDelayer common.WDelayerVariables
1204	if err := meddler.QueryRow(hdb.db, &rollup,
1205		"SELECT * FROM rollup_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1206		return nil, nil, nil, err
1207	}
1208	if err := meddler.QueryRow(hdb.db, &auction,
1209		"SELECT * FROM auction_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1210		return nil, nil, nil, err
1211	}
1212	if err := meddler.QueryRow(hdb.db, &wDelayer,
1213		"SELECT * FROM wdelayer_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1214		return nil, nil, nil, err
1215	}
1216	return &rollup, &auction, &wDelayer, nil
1217}
1218
1219func (hdb *HistoryDB) setRollupVars(d meddler.DB, rollup *common.RollupVariables) error {
1220	return meddler.Insert(d, "rollup_vars", rollup)
1221}
1222
1223func (hdb *HistoryDB) setAuctionVars(d meddler.DB, auction *common.AuctionVariables) error {
1224	return meddler.Insert(d, "auction_vars", auction)
1225}
1226
1227func (hdb *HistoryDB) setWDelayerVars(d meddler.DB, wDelayer *common.WDelayerVariables) error {
1228	return meddler.Insert(d, "wdelayer_vars", wDelayer)
1229}
1230
1231// SetInitialSCVars sets the initial state of rollup, auction, wdelayer smart
1232// contract variables.  This initial state is stored linked to block 0, which
1233// always exist in the DB and is used to store initialization data that always
1234// exist in the smart contracts.
1235func (hdb *HistoryDB) SetInitialSCVars(rollup *common.RollupVariables,
1236	auction *common.AuctionVariables, wDelayer *common.WDelayerVariables) error {
1237	txn, err := hdb.db.Beginx()
1238	if err != nil {
1239		return err
1240	}
1241	defer func() {
1242		if err != nil {
1243			db.Rollback(txn)
1244		}
1245	}()
1246	// Force EthBlockNum to be 0 because it's the block used to link data
1247	// that belongs to the creation of the smart contracts
1248	rollup.EthBlockNum = 0
1249	auction.EthBlockNum = 0
1250	wDelayer.EthBlockNum = 0
1251	if err := hdb.setRollupVars(txn, rollup); err != nil {
1252		return err
1253	}
1254	if err := hdb.setAuctionVars(txn, auction); err != nil {
1255		return err
1256	}
1257	if err := hdb.setWDelayerVars(txn, wDelayer); err != nil {
1258		return err
1259	}
1260
1261	return txn.Commit()
1262}
1263
1264// AddBlockSCData stores all the information of a block retrieved by the
1265// Synchronizer.  Blocks should be inserted in order, leaving no gaps because
1266// the pagination system of the API/DB depends on this.  Within blocks, all
1267// items should also be in the correct order (Accounts, Tokens, Txs, etc.)
1268func (hdb *HistoryDB) AddBlockSCData(blockData *common.BlockData) (err error) {
1269	txn, err := hdb.db.Beginx()
1270	if err != nil {
1271		return err
1272	}
1273	defer func() {
1274		if err != nil {
1275			db.Rollback(txn)
1276		}
1277	}()
1278
1279	// Add block
1280	if err := hdb.addBlock(txn, &blockData.Block); err != nil {
1281		return err
1282	}
1283
1284	// Add Coordinators
1285	if len(blockData.Auction.Coordinators) > 0 {
1286		if err := hdb.addCoordinators(txn, blockData.Auction.Coordinators); err != nil {
1287			return err
1288		}
1289	}
1290
1291	// Add Bids
1292	if len(blockData.Auction.Bids) > 0 {
1293		if err := hdb.addBids(txn, blockData.Auction.Bids); err != nil {
1294			return err
1295		}
1296	}
1297
1298	// Add Tokens
1299	if len(blockData.Rollup.AddedTokens) > 0 {
1300		if err := hdb.addTokens(txn, blockData.Rollup.AddedTokens); err != nil {
1301			return err
1302		}
1303	}
1304
1305	// Add l1 Txs
1306	if len(blockData.Rollup.L1UserTxs) > 0 {
1307		if err := hdb.addL1Txs(txn, blockData.Rollup.L1UserTxs); err != nil {
1308			return err
1309		}
1310	}
1311
1312	// Add Batches
1313	for i := range blockData.Rollup.Batches {
1314		batch := &blockData.Rollup.Batches[i]
1315		// Add Batch: this will trigger an update on the DB
1316		// that will set the batch num of forged L1 txs in this batch
1317		if err = hdb.addBatch(txn, &batch.Batch); err != nil {
1318			return err
1319		}
1320
1321		// Add forged l1 coordinator Txs
1322		if len(batch.L1CoordinatorTxs) > 0 {
1323			if err := hdb.addL1Txs(txn, batch.L1CoordinatorTxs); err != nil {
1324				return err
1325			}
1326		}
1327
1328		// Add l2 Txs
1329		if len(batch.L2Txs) > 0 {
1330			if err := hdb.addL2Txs(txn, batch.L2Txs); err != nil {
1331				return err
1332			}
1333		}
1334
1335		// Add accounts
1336		if len(batch.CreatedAccounts) > 0 {
1337			if err := hdb.addAccounts(txn, batch.CreatedAccounts); err != nil {
1338				return err
1339			}
1340		}
1341
1342		// Add exit tree
1343		if len(batch.ExitTree) > 0 {
1344			if err := hdb.addExitTree(txn, batch.ExitTree); err != nil {
1345				return err
1346			}
1347		}
1348	}
1349	if blockData.Rollup.Vars != nil {
1350		if err := hdb.setRollupVars(txn, blockData.Rollup.Vars); err != nil {
1351			return err
1352		}
1353	}
1354	if blockData.Auction.Vars != nil {
1355		if err := hdb.setAuctionVars(txn, blockData.Auction.Vars); err != nil {
1356			return err
1357		}
1358	}
1359	if blockData.WDelayer.Vars != nil {
1360		if err := hdb.setWDelayerVars(txn, blockData.WDelayer.Vars); err != nil {
1361			return err
1362		}
1363	}
1364
1365	if err := hdb.updateExitTree(txn, blockData.Block.EthBlockNum,
1366		blockData.Rollup.Withdrawals, blockData.WDelayer.Withdrawals); err != nil {
1367		return err
1368	}
1369
1370	return txn.Commit()
1371}
1372
1373// GetCoordinatorAPI returns a coordinator by its bidderAddr
1374func (hdb *HistoryDB) GetCoordinatorAPI(bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
1375	coordinator := &CoordinatorAPI{}
1376	err := meddler.QueryRow(hdb.db, coordinator, "SELECT * FROM coordinator WHERE bidder_addr = $1;", bidderAddr)
1377	return coordinator, err
1378}
1379
1380// GetCoordinatorsAPI returns a list of coordinators from the DB and pagination info
1381func (hdb *HistoryDB) GetCoordinatorsAPI(fromItem, limit *uint, order string) ([]CoordinatorAPI, uint64, error) {
1382	var query string
1383	var args []interface{}
1384	queryStr := `SELECT coordinator.*, 
1385	COUNT(*) OVER() AS total_items
1386	FROM coordinator `
1387	// Apply filters
1388	if fromItem != nil {
1389		queryStr += "WHERE "
1390		if order == OrderAsc {
1391			queryStr += "coordinator.item_id >= ? "
1392		} else {
1393			queryStr += "coordinator.item_id <= ? "
1394		}
1395		args = append(args, fromItem)
1396	}
1397	// pagination
1398	queryStr += "ORDER BY coordinator.item_id "
1399	if order == OrderAsc {
1400		queryStr += " ASC "
1401	} else {
1402		queryStr += " DESC "
1403	}
1404	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1405	query = hdb.db.Rebind(queryStr)
1406
1407	coordinators := []*CoordinatorAPI{}
1408	if err := meddler.QueryAll(hdb.db, &coordinators, query, args...); err != nil {
1409		return nil, 0, err
1410	}
1411	if len(coordinators) == 0 {
1412		return nil, 0, sql.ErrNoRows
1413	}
1414	return db.SlicePtrsToSlice(coordinators).([]CoordinatorAPI),
1415		coordinators[0].TotalItems - uint64(len(coordinators)), nil
1416}
1417
1418// AddAuctionVars insert auction vars into the DB
1419func (hdb *HistoryDB) AddAuctionVars(auctionVars *common.AuctionVariables) error {
1420	return meddler.Insert(hdb.db, "auction_vars", auctionVars)
1421}
1422
1423// GetAuctionVars returns auction variables
1424func (hdb *HistoryDB) GetAuctionVars() (*common.AuctionVariables, error) {
1425	auctionVars := &common.AuctionVariables{}
1426	err := meddler.QueryRow(
1427		hdb.db, auctionVars, `SELECT * FROM auction_vars;`,
1428	)
1429	return auctionVars, err
1430}
1431
1432// GetAccountAPI returns an account by its index
1433func (hdb *HistoryDB) GetAccountAPI(idx common.Idx) (*AccountAPI, error) {
1434	account := &AccountAPI{}
1435	err := meddler.QueryRow(hdb.db, account, `SELECT account.item_id, hez_idx(account.idx, 
1436	token.symbol) as idx, account.batch_num, account.bjj, account.eth_addr,
1437	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1438	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update 
1439	FROM account INNER JOIN token ON account.token_id = token.token_id WHERE idx = $1;`, idx)
1440
1441	if err != nil {
1442		return nil, err
1443	}
1444
1445	return account, nil
1446}
1447
1448// GetAccountsAPI returns a list of accounts from the DB and pagination info
1449func (hdb *HistoryDB) GetAccountsAPI(
1450	tokenIDs []common.TokenID, ethAddr *ethCommon.Address,
1451	bjj *babyjub.PublicKey, fromItem, limit *uint, order string,
1452) ([]AccountAPI, uint64, error) {
1453	if ethAddr != nil && bjj != nil {
1454		return nil, 0, errors.New("ethAddr and bjj are incompatible")
1455	}
1456	var query string
1457	var args []interface{}
1458	queryStr := `SELECT account.item_id, hez_idx(account.idx, token.symbol) as idx, account.batch_num, 
1459	account.bjj, account.eth_addr, token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1460	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update, 
1461	COUNT(*) OVER() AS total_items
1462	FROM account INNER JOIN token ON account.token_id = token.token_id `
1463	// Apply filters
1464	nextIsAnd := false
1465	// ethAddr filter
1466	if ethAddr != nil {
1467		queryStr += "WHERE account.eth_addr = ? "
1468		nextIsAnd = true
1469		args = append(args, ethAddr)
1470	} else if bjj != nil { // bjj filter
1471		queryStr += "WHERE account.bjj = ? "
1472		nextIsAnd = true
1473		args = append(args, bjj)
1474	}
1475	// tokenID filter
1476	if len(tokenIDs) > 0 {
1477		if nextIsAnd {
1478			queryStr += "AND "
1479		} else {
1480			queryStr += "WHERE "
1481		}
1482		queryStr += "account.token_id IN (?) "
1483		args = append(args, tokenIDs)
1484		nextIsAnd = true
1485	}
1486	if fromItem != nil {
1487		if nextIsAnd {
1488			queryStr += "AND "
1489		} else {
1490			queryStr += "WHERE "
1491		}
1492		if order == OrderAsc {
1493			queryStr += "account.item_id >= ? "
1494		} else {
1495			queryStr += "account.item_id <= ? "
1496		}
1497		args = append(args, fromItem)
1498	}
1499	// pagination
1500	queryStr += "ORDER BY account.item_id "
1501	if order == OrderAsc {
1502		queryStr += " ASC "
1503	} else {
1504		queryStr += " DESC "
1505	}
1506	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1507	query, argsQ, err := sqlx.In(queryStr, args...)
1508	if err != nil {
1509		return nil, 0, err
1510	}
1511	query = hdb.db.Rebind(query)
1512
1513	accounts := []*AccountAPI{}
1514	if err := meddler.QueryAll(hdb.db, &accounts, query, argsQ...); err != nil {
1515		return nil, 0, err
1516	}
1517	if len(accounts) == 0 {
1518		return nil, 0, sql.ErrNoRows
1519	}
1520
1521	return db.SlicePtrsToSlice(accounts).([]AccountAPI),
1522		accounts[0].TotalItems - uint64(len(accounts)), nil
1523}
1524
1525// GetMetrics returns metrics
1526func (hdb *HistoryDB) GetMetrics(lastBatchNum common.BatchNum) (*Metrics, error) {
1527	metricsTotals := &MetricsTotals{}
1528	metrics := &Metrics{}
1529	err := meddler.QueryRow(
1530		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, MIN(tx.batch_num) as batch_num 
1531		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1532		WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS';`)
1533	if err != nil {
1534		return nil, err
1535	}
1536
1537	metrics.TransactionsPerSecond = float64(metricsTotals.TotalTransactions / (24 * 60 * 60))
1538	if (lastBatchNum - metricsTotals.FirstBatchNum) > 0 {
1539		metrics.TransactionsPerBatch = float64(int64(metricsTotals.TotalTransactions) /
1540			int64(lastBatchNum-metricsTotals.FirstBatchNum))
1541	} else {
1542		metrics.TransactionsPerBatch = float64(0)
1543	}
1544
1545	err = meddler.QueryRow(
1546		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1547		SUM(total_fees_usd) AS total_fees FROM batch 
1548		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1549	if err != nil {
1550		return nil, err
1551	}
1552	if metricsTotals.TotalBatches > 0 {
1553		metrics.BatchFrequency = float64((24 * 60 * 60) / metricsTotals.TotalBatches)
1554	} else {
1555		metrics.BatchFrequency = 0
1556	}
1557	if metricsTotals.TotalTransactions > 0 {
1558		metrics.AvgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1559	} else {
1560		metrics.AvgTransactionFee = 0
1561	}
1562	err = meddler.QueryRow(
1563		hdb.db, metrics,
1564		`SELECT COUNT(*) AS total_bjjs, COUNT(DISTINCT(bjj)) AS total_accounts FROM account;`)
1565	if err != nil {
1566		return nil, err
1567	}
1568
1569	return metrics, nil
1570}
1571
1572// GetAvgTxFee returns average transaction fee of the last 1h
1573func (hdb *HistoryDB) GetAvgTxFee() (float64, error) {
1574	metricsTotals := &MetricsTotals{}
1575	err := meddler.QueryRow(
1576		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, MIN(tx.batch_num) as batch_num 
1577		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1578		WHERE block.timestamp >= NOW() - INTERVAL '1 HOURS';`)
1579	if err != nil {
1580		return 0, err
1581	}
1582	err = meddler.QueryRow(
1583		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1584		SUM(total_fees_usd) AS total_fees FROM batch 
1585		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1586	if err != nil {
1587		return 0, err
1588	}
1589
1590	var avgTransactionFee float64
1591	if metricsTotals.TotalTransactions > 0 {
1592		avgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1593	} else {
1594		avgTransactionFee = 0
1595	}
1596
1597	return avgTransactionFee, nil
1598}