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/hermeznetwork/tracerr"
  14	"github.com/iden3/go-iden3-crypto/babyjub"
  15	"github.com/jmoiron/sqlx"
  16
  17	//nolint:errcheck // driver for postgres DB
  18	_ "github.com/lib/pq"
  19	"github.com/russross/meddler"
  20)
  21
  22const (
  23	// OrderAsc indicates ascending order when using pagination
  24	OrderAsc = "ASC"
  25	// OrderDesc indicates descending order when using pagination
  26	OrderDesc = "DESC"
  27)
  28
  29// TODO(Edu): Document here how HistoryDB is kept consistent
  30
  31// HistoryDB persist the historic of the rollup
  32type HistoryDB struct {
  33	db *sqlx.DB
  34}
  35
  36// NewHistoryDB initialize the DB
  37func NewHistoryDB(db *sqlx.DB) *HistoryDB {
  38	return &HistoryDB{db: db}
  39}
  40
  41// DB returns a pointer to the L2DB.db. This method should be used only for
  42// internal testing purposes.
  43func (hdb *HistoryDB) DB() *sqlx.DB {
  44	return hdb.db
  45}
  46
  47// AddBlock insert a block into the DB
  48func (hdb *HistoryDB) AddBlock(block *common.Block) error { return hdb.addBlock(hdb.db, block) }
  49func (hdb *HistoryDB) addBlock(d meddler.DB, block *common.Block) error {
  50	return tracerr.Wrap(meddler.Insert(d, "block", block))
  51}
  52
  53// AddBlocks inserts blocks into the DB
  54func (hdb *HistoryDB) AddBlocks(blocks []common.Block) error {
  55	return tracerr.Wrap(hdb.addBlocks(hdb.db, blocks))
  56}
  57
  58func (hdb *HistoryDB) addBlocks(d meddler.DB, blocks []common.Block) error {
  59	return tracerr.Wrap(db.BulkInsert(
  60		d,
  61		`INSERT INTO block (
  62			eth_block_num,
  63			timestamp,
  64			hash
  65		) VALUES %s;`,
  66		blocks[:],
  67	))
  68}
  69
  70// GetBlock retrieve a block from the DB, given a block number
  71func (hdb *HistoryDB) GetBlock(blockNum int64) (*common.Block, error) {
  72	block := &common.Block{}
  73	err := meddler.QueryRow(
  74		hdb.db, block,
  75		"SELECT * FROM block WHERE eth_block_num = $1;", blockNum,
  76	)
  77	return block, tracerr.Wrap(err)
  78}
  79
  80// GetAllBlocks retrieve all blocks from the DB
  81func (hdb *HistoryDB) GetAllBlocks() ([]common.Block, error) {
  82	var blocks []*common.Block
  83	err := meddler.QueryAll(
  84		hdb.db, &blocks,
  85		"SELECT * FROM block ORDER BY eth_block_num;",
  86	)
  87	return db.SlicePtrsToSlice(blocks).([]common.Block), tracerr.Wrap(err)
  88}
  89
  90// GetBlocks retrieve blocks from the DB, given a range of block numbers defined by from and to
  91func (hdb *HistoryDB) GetBlocks(from, to int64) ([]common.Block, error) {
  92	var blocks []*common.Block
  93	err := meddler.QueryAll(
  94		hdb.db, &blocks,
  95		"SELECT * FROM block WHERE $1 <= eth_block_num AND eth_block_num < $2 ORDER BY eth_block_num;",
  96		from, to,
  97	)
  98	return db.SlicePtrsToSlice(blocks).([]common.Block), tracerr.Wrap(err)
  99}
 100
 101// GetLastBlock retrieve the block with the highest block number from the DB
 102func (hdb *HistoryDB) GetLastBlock() (*common.Block, error) {
 103	block := &common.Block{}
 104	err := meddler.QueryRow(
 105		hdb.db, block, "SELECT * FROM block ORDER BY eth_block_num DESC LIMIT 1;",
 106	)
 107	return block, tracerr.Wrap(err)
 108}
 109
 110// AddBatch insert a Batch into the DB
 111func (hdb *HistoryDB) AddBatch(batch *common.Batch) error { return hdb.addBatch(hdb.db, batch) }
 112func (hdb *HistoryDB) addBatch(d meddler.DB, batch *common.Batch) error {
 113	// Calculate total collected fees in USD
 114	// Get IDs of collected tokens for fees
 115	tokenIDs := []common.TokenID{}
 116	for id := range batch.CollectedFees {
 117		tokenIDs = append(tokenIDs, id)
 118	}
 119	// Get USD value of the tokens
 120	type tokenPrice struct {
 121		ID       common.TokenID `meddler:"token_id"`
 122		USD      *float64       `meddler:"usd"`
 123		Decimals int            `meddler:"decimals"`
 124	}
 125	var tokenPrices []*tokenPrice
 126	if len(tokenIDs) > 0 {
 127		query, args, err := sqlx.In(
 128			"SELECT token_id, usd, decimals FROM token WHERE token_id IN (?);",
 129			tokenIDs,
 130		)
 131		if err != nil {
 132			return tracerr.Wrap(err)
 133		}
 134		query = hdb.db.Rebind(query)
 135		if err := meddler.QueryAll(
 136			hdb.db, &tokenPrices, query, args...,
 137		); err != nil {
 138			return tracerr.Wrap(err)
 139		}
 140	}
 141	// Calculate total collected
 142	var total float64
 143	for _, tokenPrice := range tokenPrices {
 144		if tokenPrice.USD == nil {
 145			continue
 146		}
 147		f := new(big.Float).SetInt(batch.CollectedFees[tokenPrice.ID])
 148		amount, _ := f.Float64()
 149		total += *tokenPrice.USD * (amount / math.Pow(10, float64(tokenPrice.Decimals))) //nolint decimals have to be ^10
 150	}
 151	batch.TotalFeesUSD = &total
 152	// Insert to DB
 153	return tracerr.Wrap(meddler.Insert(d, "batch", batch))
 154}
 155
 156// AddBatches insert Bids into the DB
 157func (hdb *HistoryDB) AddBatches(batches []common.Batch) error {
 158	return tracerr.Wrap(hdb.addBatches(hdb.db, batches))
 159}
 160func (hdb *HistoryDB) addBatches(d meddler.DB, batches []common.Batch) error {
 161	for i := 0; i < len(batches); i++ {
 162		if err := hdb.addBatch(d, &batches[i]); err != nil {
 163			return tracerr.Wrap(err)
 164		}
 165	}
 166	return nil
 167}
 168
 169// GetBatchAPI return the batch with the given batchNum
 170func (hdb *HistoryDB) GetBatchAPI(batchNum common.BatchNum) (*BatchAPI, error) {
 171	batch := &BatchAPI{}
 172	return batch, tracerr.Wrap(meddler.QueryRow(
 173		hdb.db, batch,
 174		`SELECT batch.*, block.timestamp, block.hash,
 175	    COALESCE ((SELECT COUNT(*) FROM tx WHERE batch_num = batch.batch_num), 0) AS forged_txs
 176	    FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num
 177	 	WHERE batch_num = $1;`, batchNum,
 178	))
 179}
 180
 181// GetBatchesAPI return the batches applying the given filters
 182func (hdb *HistoryDB) GetBatchesAPI(
 183	minBatchNum, maxBatchNum, slotNum *uint,
 184	forgerAddr *ethCommon.Address,
 185	fromItem, limit *uint, order string,
 186) ([]BatchAPI, uint64, error) {
 187	var query string
 188	var args []interface{}
 189	queryStr := `SELECT batch.*, block.timestamp, block.hash,
 190	COALESCE ((SELECT COUNT(*) FROM tx WHERE batch_num = batch.batch_num), 0) AS forged_txs,
 191	count(*) OVER() AS total_items
 192	FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num `
 193	// Apply filters
 194	nextIsAnd := false
 195	// minBatchNum filter
 196	if minBatchNum != nil {
 197		if nextIsAnd {
 198			queryStr += "AND "
 199		} else {
 200			queryStr += "WHERE "
 201		}
 202		queryStr += "batch.batch_num > ? "
 203		args = append(args, minBatchNum)
 204		nextIsAnd = true
 205	}
 206	// maxBatchNum filter
 207	if maxBatchNum != nil {
 208		if nextIsAnd {
 209			queryStr += "AND "
 210		} else {
 211			queryStr += "WHERE "
 212		}
 213		queryStr += "batch.batch_num < ? "
 214		args = append(args, maxBatchNum)
 215		nextIsAnd = true
 216	}
 217	// slotNum filter
 218	if slotNum != nil {
 219		if nextIsAnd {
 220			queryStr += "AND "
 221		} else {
 222			queryStr += "WHERE "
 223		}
 224		queryStr += "batch.slot_num = ? "
 225		args = append(args, slotNum)
 226		nextIsAnd = true
 227	}
 228	// forgerAddr filter
 229	if forgerAddr != nil {
 230		if nextIsAnd {
 231			queryStr += "AND "
 232		} else {
 233			queryStr += "WHERE "
 234		}
 235		queryStr += "batch.forger_addr = ? "
 236		args = append(args, forgerAddr)
 237		nextIsAnd = true
 238	}
 239	// pagination
 240	if fromItem != nil {
 241		if nextIsAnd {
 242			queryStr += "AND "
 243		} else {
 244			queryStr += "WHERE "
 245		}
 246		if order == OrderAsc {
 247			queryStr += "batch.item_id >= ? "
 248		} else {
 249			queryStr += "batch.item_id <= ? "
 250		}
 251		args = append(args, fromItem)
 252	}
 253	queryStr += "ORDER BY batch.item_id "
 254	if order == OrderAsc {
 255		queryStr += " ASC "
 256	} else {
 257		queryStr += " DESC "
 258	}
 259	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 260	query = hdb.db.Rebind(queryStr)
 261	// log.Debug(query)
 262	batchPtrs := []*BatchAPI{}
 263	if err := meddler.QueryAll(hdb.db, &batchPtrs, query, args...); err != nil {
 264		return nil, 0, tracerr.Wrap(err)
 265	}
 266	batches := db.SlicePtrsToSlice(batchPtrs).([]BatchAPI)
 267	if len(batches) == 0 {
 268		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
 269	}
 270	return batches, batches[0].TotalItems - uint64(len(batches)), nil
 271}
 272
 273// GetAllBatches retrieve all batches from the DB
 274func (hdb *HistoryDB) GetAllBatches() ([]common.Batch, error) {
 275	var batches []*common.Batch
 276	err := meddler.QueryAll(
 277		hdb.db, &batches,
 278		`SELECT batch.batch_num, batch.eth_block_num, batch.forger_addr, batch.fees_collected,
 279		 batch.fee_idxs_coordinator, batch.state_root, batch.num_accounts, batch.last_idx, batch.exit_root,
 280		 batch.forge_l1_txs_num, batch.slot_num, batch.total_fees_usd FROM batch
 281		 ORDER BY item_id;`,
 282	)
 283	return db.SlicePtrsToSlice(batches).([]common.Batch), tracerr.Wrap(err)
 284}
 285
 286// GetBatches retrieve batches from the DB, given a range of batch numbers defined by from and to
 287func (hdb *HistoryDB) GetBatches(from, to common.BatchNum) ([]common.Batch, error) {
 288	var batches []*common.Batch
 289	err := meddler.QueryAll(
 290		hdb.db, &batches,
 291		"SELECT * FROM batch WHERE $1 <= batch_num AND batch_num < $2 ORDER BY batch_num;",
 292		from, to,
 293	)
 294	return db.SlicePtrsToSlice(batches).([]common.Batch), tracerr.Wrap(err)
 295}
 296
 297// GetFirstBatchBlockNumBySlot returns the ethereum block number of the first
 298// batch within a slot
 299func (hdb *HistoryDB) GetFirstBatchBlockNumBySlot(slotNum int64) (int64, error) {
 300	row := hdb.db.QueryRow(
 301		`SELECT eth_block_num FROM batch
 302		WHERE slot_num = $1 ORDER BY batch_num ASC LIMIT 1;`, slotNum,
 303	)
 304	var blockNum int64
 305	return blockNum, tracerr.Wrap(row.Scan(&blockNum))
 306}
 307
 308// GetLastBatchNum returns the BatchNum of the latest forged batch
 309func (hdb *HistoryDB) GetLastBatchNum() (common.BatchNum, error) {
 310	row := hdb.db.QueryRow("SELECT batch_num FROM batch ORDER BY batch_num DESC LIMIT 1;")
 311	var batchNum common.BatchNum
 312	return batchNum, tracerr.Wrap(row.Scan(&batchNum))
 313}
 314
 315// GetLastL1BatchBlockNum returns the blockNum of the latest forged l1Batch
 316func (hdb *HistoryDB) GetLastL1BatchBlockNum() (int64, error) {
 317	row := hdb.db.QueryRow(`SELECT eth_block_num FROM batch
 318		WHERE forge_l1_txs_num IS NOT NULL
 319		ORDER BY batch_num DESC LIMIT 1;`)
 320	var blockNum int64
 321	return blockNum, tracerr.Wrap(row.Scan(&blockNum))
 322}
 323
 324// GetLastL1TxsNum returns the greatest ForgeL1TxsNum in the DB from forged
 325// batches.  If there's no batch in the DB (nil, nil) is returned.
 326func (hdb *HistoryDB) GetLastL1TxsNum() (*int64, error) {
 327	row := hdb.db.QueryRow("SELECT MAX(forge_l1_txs_num) FROM batch;")
 328	lastL1TxsNum := new(int64)
 329	return lastL1TxsNum, tracerr.Wrap(row.Scan(&lastL1TxsNum))
 330}
 331
 332// Reorg deletes all the information that was added into the DB after the
 333// lastValidBlock.  If lastValidBlock is negative, all block information is
 334// deleted.
 335func (hdb *HistoryDB) Reorg(lastValidBlock int64) error {
 336	var err error
 337	if lastValidBlock < 0 {
 338		_, err = hdb.db.Exec("DELETE FROM block;")
 339	} else {
 340		_, err = hdb.db.Exec("DELETE FROM block WHERE eth_block_num > $1;", lastValidBlock)
 341	}
 342	return tracerr.Wrap(err)
 343}
 344
 345// AddBids insert Bids into the DB
 346func (hdb *HistoryDB) AddBids(bids []common.Bid) error { return hdb.addBids(hdb.db, bids) }
 347func (hdb *HistoryDB) addBids(d meddler.DB, bids []common.Bid) error {
 348	if len(bids) == 0 {
 349		return nil
 350	}
 351	// TODO: check the coordinator info
 352	return tracerr.Wrap(db.BulkInsert(
 353		d,
 354		"INSERT INTO bid (slot_num, bid_value, eth_block_num, bidder_addr) VALUES %s;",
 355		bids[:],
 356	))
 357}
 358
 359// GetAllBids retrieve all bids from the DB
 360func (hdb *HistoryDB) GetAllBids() ([]common.Bid, error) {
 361	var bids []*common.Bid
 362	err := meddler.QueryAll(
 363		hdb.db, &bids,
 364		`SELECT bid.slot_num, bid.bid_value, bid.eth_block_num, bid.bidder_addr FROM bid
 365		ORDER BY item_id;`,
 366	)
 367	return db.SlicePtrsToSlice(bids).([]common.Bid), tracerr.Wrap(err)
 368}
 369
 370// GetBestBidAPI returns the best bid in specific slot by slotNum
 371func (hdb *HistoryDB) GetBestBidAPI(slotNum *int64) (BidAPI, error) {
 372	bid := &BidAPI{}
 373	err := meddler.QueryRow(
 374		hdb.db, bid, `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url 
 375		FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 376		INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr 
 377		WHERE slot_num = $1 ORDER BY item_id DESC LIMIT 1;`, slotNum,
 378	)
 379	return *bid, tracerr.Wrap(err)
 380}
 381
 382// GetBestBidCoordinator returns the forger address of the highest bidder in a slot by slotNum
 383func (hdb *HistoryDB) GetBestBidCoordinator(slotNum int64) (*common.BidCoordinator, error) {
 384	bidCoord := &common.BidCoordinator{}
 385	err := meddler.QueryRow(
 386		hdb.db, bidCoord,
 387		`SELECT (
 388			SELECT default_slot_set_bid
 389			FROM auction_vars
 390			WHERE default_slot_set_bid_slot_num <= $1
 391			ORDER BY eth_block_num DESC LIMIT 1
 392			),
 393		bid.slot_num, bid.bid_value, bid.bidder_addr,
 394		coordinator.forger_addr, coordinator.url
 395		FROM bid
 396		INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr
 397		WHERE bid.slot_num = $1 ORDER BY bid.item_id DESC LIMIT 1;`,
 398		slotNum)
 399
 400	return bidCoord, tracerr.Wrap(err)
 401}
 402
 403// GetBestBidsAPI returns the best bid in specific slot by slotNum
 404func (hdb *HistoryDB) GetBestBidsAPI(
 405	minSlotNum, maxSlotNum *int64,
 406	bidderAddr *ethCommon.Address,
 407	limit *uint, order string,
 408) ([]BidAPI, uint64, error) {
 409	var query string
 410	var args []interface{}
 411	queryStr := `SELECT b.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 412	COUNT(*) OVER() AS total_items FROM (
 413	   SELECT slot_num, MAX(item_id) as maxitem 
 414	   FROM bid GROUP BY slot_num
 415	   )
 416	AS x INNER JOIN bid AS b ON b.item_id = x.maxitem
 417	INNER JOIN block ON b.eth_block_num = block.eth_block_num
 418	INNER JOIN coordinator ON b.bidder_addr = coordinator.bidder_addr 
 419	WHERE (b.slot_num >= ? AND b.slot_num <= ?)`
 420	args = append(args, minSlotNum)
 421	args = append(args, maxSlotNum)
 422	// Apply filters
 423	if bidderAddr != nil {
 424		queryStr += " AND b.bidder_addr = ? "
 425		args = append(args, bidderAddr)
 426	}
 427	queryStr += " ORDER BY b.slot_num "
 428	if order == OrderAsc {
 429		queryStr += "ASC "
 430	} else {
 431		queryStr += "DESC "
 432	}
 433	if limit != nil {
 434		queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 435	}
 436	query = hdb.db.Rebind(queryStr)
 437	bidPtrs := []*BidAPI{}
 438	if err := meddler.QueryAll(hdb.db, &bidPtrs, query, args...); err != nil {
 439		return nil, 0, tracerr.Wrap(err)
 440	}
 441	// log.Debug(query)
 442	bids := db.SlicePtrsToSlice(bidPtrs).([]BidAPI)
 443	if len(bids) == 0 {
 444		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
 445	}
 446	return bids, bids[0].TotalItems - uint64(len(bids)), nil
 447}
 448
 449// GetBidsAPI return the bids applying the given filters
 450func (hdb *HistoryDB) GetBidsAPI(
 451	slotNum *int64, forgerAddr *ethCommon.Address,
 452	fromItem, limit *uint, order string,
 453) ([]BidAPI, uint64, error) {
 454	var query string
 455	var args []interface{}
 456	queryStr := `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 457	COUNT(*) OVER() AS total_items
 458	FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 459	INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr `
 460	// Apply filters
 461	nextIsAnd := false
 462	// slotNum filter
 463	if slotNum != nil {
 464		if nextIsAnd {
 465			queryStr += "AND "
 466		} else {
 467			queryStr += "WHERE "
 468		}
 469		queryStr += "bid.slot_num = ? "
 470		args = append(args, slotNum)
 471		nextIsAnd = true
 472	}
 473	// slotNum filter
 474	if forgerAddr != nil {
 475		if nextIsAnd {
 476			queryStr += "AND "
 477		} else {
 478			queryStr += "WHERE "
 479		}
 480		queryStr += "bid.bidder_addr = ? "
 481		args = append(args, forgerAddr)
 482		nextIsAnd = true
 483	}
 484	if fromItem != nil {
 485		if nextIsAnd {
 486			queryStr += "AND "
 487		} else {
 488			queryStr += "WHERE "
 489		}
 490		if order == OrderAsc {
 491			queryStr += "bid.item_id >= ? "
 492		} else {
 493			queryStr += "bid.item_id <= ? "
 494		}
 495		args = append(args, fromItem)
 496	}
 497	// pagination
 498	queryStr += "ORDER BY bid.item_id "
 499	if order == OrderAsc {
 500		queryStr += "ASC "
 501	} else {
 502		queryStr += "DESC "
 503	}
 504	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 505	query, argsQ, err := sqlx.In(queryStr, args...)
 506	if err != nil {
 507		return nil, 0, tracerr.Wrap(err)
 508	}
 509	query = hdb.db.Rebind(query)
 510	bids := []*BidAPI{}
 511	if err := meddler.QueryAll(hdb.db, &bids, query, argsQ...); err != nil {
 512		return nil, 0, tracerr.Wrap(err)
 513	}
 514	if len(bids) == 0 {
 515		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
 516	}
 517	return db.SlicePtrsToSlice(bids).([]BidAPI), bids[0].TotalItems - uint64(len(bids)), nil
 518}
 519
 520// AddCoordinators insert Coordinators into the DB
 521func (hdb *HistoryDB) AddCoordinators(coordinators []common.Coordinator) error {
 522	return tracerr.Wrap(hdb.addCoordinators(hdb.db, coordinators))
 523}
 524func (hdb *HistoryDB) addCoordinators(d meddler.DB, coordinators []common.Coordinator) error {
 525	if len(coordinators) == 0 {
 526		return nil
 527	}
 528	return tracerr.Wrap(db.BulkInsert(
 529		d,
 530		"INSERT INTO coordinator (bidder_addr, forger_addr, eth_block_num, url) VALUES %s;",
 531		coordinators[:],
 532	))
 533}
 534
 535// AddExitTree insert Exit tree into the DB
 536func (hdb *HistoryDB) AddExitTree(exitTree []common.ExitInfo) error {
 537	return tracerr.Wrap(hdb.addExitTree(hdb.db, exitTree))
 538}
 539func (hdb *HistoryDB) addExitTree(d meddler.DB, exitTree []common.ExitInfo) error {
 540	if len(exitTree) == 0 {
 541		return nil
 542	}
 543	return tracerr.Wrap(db.BulkInsert(
 544		d,
 545		"INSERT INTO exit_tree (batch_num, account_idx, merkle_proof, balance, "+
 546			"instant_withdrawn, delayed_withdraw_request, delayed_withdrawn) VALUES %s;",
 547		exitTree[:],
 548	))
 549}
 550
 551func (hdb *HistoryDB) updateExitTree(d sqlx.Ext, blockNum int64,
 552	rollupWithdrawals []common.WithdrawInfo, wDelayerWithdrawals []common.WDelayerTransfer) error {
 553	if len(rollupWithdrawals) == 0 && len(wDelayerWithdrawals) == 0 {
 554		return nil
 555	}
 556	type withdrawal struct {
 557		BatchNum               int64              `db:"batch_num"`
 558		AccountIdx             int64              `db:"account_idx"`
 559		InstantWithdrawn       *int64             `db:"instant_withdrawn"`
 560		DelayedWithdrawRequest *int64             `db:"delayed_withdraw_request"`
 561		DelayedWithdrawn       *int64             `db:"delayed_withdrawn"`
 562		Owner                  *ethCommon.Address `db:"owner"`
 563		Token                  *ethCommon.Address `db:"token"`
 564	}
 565	withdrawals := make([]withdrawal, len(rollupWithdrawals)+len(wDelayerWithdrawals))
 566	for i := range rollupWithdrawals {
 567		info := &rollupWithdrawals[i]
 568		withdrawals[i] = withdrawal{
 569			BatchNum:   int64(info.NumExitRoot),
 570			AccountIdx: int64(info.Idx),
 571		}
 572		if info.InstantWithdraw {
 573			withdrawals[i].InstantWithdrawn = &blockNum
 574		} else {
 575			withdrawals[i].DelayedWithdrawRequest = &blockNum
 576			withdrawals[i].Owner = &info.Owner
 577			withdrawals[i].Token = &info.Token
 578		}
 579	}
 580	for i := range wDelayerWithdrawals {
 581		info := &wDelayerWithdrawals[i]
 582		withdrawals[len(rollupWithdrawals)+i] = withdrawal{
 583			DelayedWithdrawn: &blockNum,
 584			Owner:            &info.Owner,
 585			Token:            &info.Token,
 586		}
 587	}
 588	// In VALUES we set an initial row of NULLs to set the types of each
 589	// variable passed as argument
 590	const query string = `
 591		UPDATE exit_tree e SET
 592			instant_withdrawn = d.instant_withdrawn,
 593			delayed_withdraw_request = CASE
 594				WHEN e.delayed_withdraw_request IS NOT NULL THEN e.delayed_withdraw_request
 595				ELSE d.delayed_withdraw_request
 596			END,
 597			delayed_withdrawn = d.delayed_withdrawn,
 598			owner = d.owner,
 599			token = d.token
 600		FROM (VALUES
 601			(NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BYTEA, NULL::::BYTEA),
 602			(:batch_num,
 603			 :account_idx,
 604			 :instant_withdrawn,
 605			 :delayed_withdraw_request,
 606			 :delayed_withdrawn,
 607			 :owner,
 608			 :token)
 609		) as d (batch_num, account_idx, instant_withdrawn, delayed_withdraw_request, delayed_withdrawn, owner, token)
 610		WHERE
 611			(d.batch_num IS NOT NULL AND e.batch_num = d.batch_num AND e.account_idx = d.account_idx) OR
 612			(d.delayed_withdrawn IS NOT NULL AND e.delayed_withdrawn IS NULL AND e.owner = d.owner AND e.token = d.token);
 613		`
 614	if len(withdrawals) > 0 {
 615		if _, err := sqlx.NamedExec(d, query, withdrawals); err != nil {
 616			return tracerr.Wrap(err)
 617		}
 618	}
 619
 620	return nil
 621}
 622
 623// AddToken insert a token into the DB
 624func (hdb *HistoryDB) AddToken(token *common.Token) error {
 625	return tracerr.Wrap(meddler.Insert(hdb.db, "token", token))
 626}
 627
 628// AddTokens insert tokens into the DB
 629func (hdb *HistoryDB) AddTokens(tokens []common.Token) error { return hdb.addTokens(hdb.db, tokens) }
 630func (hdb *HistoryDB) addTokens(d meddler.DB, tokens []common.Token) error {
 631	if len(tokens) == 0 {
 632		return nil
 633	}
 634	return tracerr.Wrap(db.BulkInsert(
 635		d,
 636		`INSERT INTO token (
 637			token_id,
 638			eth_block_num,
 639			eth_addr,
 640			name,
 641			symbol,
 642			decimals
 643		) VALUES %s;`,
 644		tokens[:],
 645	))
 646}
 647
 648// UpdateTokenValue updates the USD value of a token
 649func (hdb *HistoryDB) UpdateTokenValue(tokenSymbol string, value float64) error {
 650	_, err := hdb.db.Exec(
 651		"UPDATE token SET usd = $1 WHERE symbol = $2;",
 652		value, tokenSymbol,
 653	)
 654	return tracerr.Wrap(err)
 655}
 656
 657// GetToken returns a token from the DB given a TokenID
 658func (hdb *HistoryDB) GetToken(tokenID common.TokenID) (*TokenWithUSD, error) {
 659	token := &TokenWithUSD{}
 660	err := meddler.QueryRow(
 661		hdb.db, token, `SELECT * FROM token WHERE token_id = $1;`, tokenID,
 662	)
 663	return token, tracerr.Wrap(err)
 664}
 665
 666// GetAllTokens returns all tokens from the DB
 667func (hdb *HistoryDB) GetAllTokens() ([]TokenWithUSD, error) {
 668	var tokens []*TokenWithUSD
 669	err := meddler.QueryAll(
 670		hdb.db, &tokens,
 671		"SELECT * FROM token ORDER BY token_id;",
 672	)
 673	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), tracerr.Wrap(err)
 674}
 675
 676// GetTokens returns a list of tokens from the DB
 677func (hdb *HistoryDB) GetTokens(
 678	ids []common.TokenID, symbols []string, name string, fromItem,
 679	limit *uint, order string,
 680) ([]TokenWithUSD, uint64, error) {
 681	var query string
 682	var args []interface{}
 683	queryStr := `SELECT * , COUNT(*) OVER() AS total_items FROM token `
 684	// Apply filters
 685	nextIsAnd := false
 686	if len(ids) > 0 {
 687		queryStr += "WHERE token_id IN (?) "
 688		nextIsAnd = true
 689		args = append(args, ids)
 690	}
 691	if len(symbols) > 0 {
 692		if nextIsAnd {
 693			queryStr += "AND "
 694		} else {
 695			queryStr += "WHERE "
 696		}
 697		queryStr += "symbol IN (?) "
 698		args = append(args, symbols)
 699		nextIsAnd = true
 700	}
 701	if name != "" {
 702		if nextIsAnd {
 703			queryStr += "AND "
 704		} else {
 705			queryStr += "WHERE "
 706		}
 707		queryStr += "name ~ ? "
 708		args = append(args, name)
 709		nextIsAnd = true
 710	}
 711	if fromItem != nil {
 712		if nextIsAnd {
 713			queryStr += "AND "
 714		} else {
 715			queryStr += "WHERE "
 716		}
 717		if order == OrderAsc {
 718			queryStr += "item_id >= ? "
 719		} else {
 720			queryStr += "item_id <= ? "
 721		}
 722		args = append(args, fromItem)
 723	}
 724	// pagination
 725	queryStr += "ORDER BY item_id "
 726	if order == OrderAsc {
 727		queryStr += "ASC "
 728	} else {
 729		queryStr += "DESC "
 730	}
 731	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 732	query, argsQ, err := sqlx.In(queryStr, args...)
 733	if err != nil {
 734		return nil, 0, tracerr.Wrap(err)
 735	}
 736	query = hdb.db.Rebind(query)
 737	tokens := []*TokenWithUSD{}
 738	if err := meddler.QueryAll(hdb.db, &tokens, query, argsQ...); err != nil {
 739		return nil, 0, tracerr.Wrap(err)
 740	}
 741	if len(tokens) == 0 {
 742		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
 743	}
 744	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), uint64(len(tokens)) - tokens[0].TotalItems, nil
 745}
 746
 747// GetTokenSymbols returns all the token symbols from the DB
 748func (hdb *HistoryDB) GetTokenSymbols() ([]string, error) {
 749	var tokenSymbols []string
 750	rows, err := hdb.db.Query("SELECT symbol FROM token;")
 751	if err != nil {
 752		return nil, tracerr.Wrap(err)
 753	}
 754	defer db.RowsClose(rows)
 755	sym := new(string)
 756	for rows.Next() {
 757		err = rows.Scan(sym)
 758		if err != nil {
 759			return nil, tracerr.Wrap(err)
 760		}
 761		tokenSymbols = append(tokenSymbols, *sym)
 762	}
 763	return tokenSymbols, nil
 764}
 765
 766// AddAccounts insert accounts into the DB
 767func (hdb *HistoryDB) AddAccounts(accounts []common.Account) error {
 768	return tracerr.Wrap(hdb.addAccounts(hdb.db, accounts))
 769}
 770func (hdb *HistoryDB) addAccounts(d meddler.DB, accounts []common.Account) error {
 771	if len(accounts) == 0 {
 772		return nil
 773	}
 774	return tracerr.Wrap(db.BulkInsert(
 775		d,
 776		`INSERT INTO account (
 777			idx,
 778			token_id,
 779			batch_num,
 780			bjj,
 781			eth_addr
 782		) VALUES %s;`,
 783		accounts[:],
 784	))
 785}
 786
 787// GetAllAccounts returns a list of accounts from the DB
 788func (hdb *HistoryDB) GetAllAccounts() ([]common.Account, error) {
 789	var accs []*common.Account
 790	err := meddler.QueryAll(
 791		hdb.db, &accs,
 792		"SELECT * FROM account ORDER BY idx;",
 793	)
 794	return db.SlicePtrsToSlice(accs).([]common.Account), tracerr.Wrap(err)
 795}
 796
 797// AddL1Txs inserts L1 txs to the DB. USD and DepositAmountUSD will be set automatically before storing the tx.
 798// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 799// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 800// EffectiveAmount and EffectiveDepositAmount are seted with default values by the DB.
 801func (hdb *HistoryDB) AddL1Txs(l1txs []common.L1Tx) error {
 802	return tracerr.Wrap(hdb.addL1Txs(hdb.db, l1txs))
 803}
 804
 805// addL1Txs inserts L1 txs to the DB. USD and DepositAmountUSD will be set automatically before storing the tx.
 806// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 807// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 808// EffectiveAmount and EffectiveDepositAmount are seted with default values by the DB.
 809func (hdb *HistoryDB) addL1Txs(d meddler.DB, l1txs []common.L1Tx) error {
 810	if len(l1txs) == 0 {
 811		return nil
 812	}
 813	txs := []txWrite{}
 814	for i := 0; i < len(l1txs); i++ {
 815		af := new(big.Float).SetInt(l1txs[i].Amount)
 816		amountFloat, _ := af.Float64()
 817		laf := new(big.Float).SetInt(l1txs[i].DepositAmount)
 818		depositAmountFloat, _ := laf.Float64()
 819		txs = append(txs, txWrite{
 820			// Generic
 821			IsL1:        true,
 822			TxID:        l1txs[i].TxID,
 823			Type:        l1txs[i].Type,
 824			Position:    l1txs[i].Position,
 825			FromIdx:     &l1txs[i].FromIdx,
 826			ToIdx:       l1txs[i].ToIdx,
 827			Amount:      l1txs[i].Amount,
 828			AmountFloat: amountFloat,
 829			TokenID:     l1txs[i].TokenID,
 830			BatchNum:    l1txs[i].BatchNum,
 831			EthBlockNum: l1txs[i].EthBlockNum,
 832			// L1
 833			ToForgeL1TxsNum:    l1txs[i].ToForgeL1TxsNum,
 834			UserOrigin:         &l1txs[i].UserOrigin,
 835			FromEthAddr:        &l1txs[i].FromEthAddr,
 836			FromBJJ:            &l1txs[i].FromBJJ,
 837			DepositAmount:      l1txs[i].DepositAmount,
 838			DepositAmountFloat: &depositAmountFloat,
 839		})
 840	}
 841	return tracerr.Wrap(hdb.addTxs(d, txs))
 842}
 843
 844// AddL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 845func (hdb *HistoryDB) AddL2Txs(l2txs []common.L2Tx) error {
 846	return tracerr.Wrap(hdb.addL2Txs(hdb.db, l2txs))
 847}
 848
 849// addL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 850func (hdb *HistoryDB) addL2Txs(d meddler.DB, l2txs []common.L2Tx) error {
 851	txs := []txWrite{}
 852	for i := 0; i < len(l2txs); i++ {
 853		f := new(big.Float).SetInt(l2txs[i].Amount)
 854		amountFloat, _ := f.Float64()
 855		txs = append(txs, txWrite{
 856			// Generic
 857			IsL1:        false,
 858			TxID:        l2txs[i].TxID,
 859			Type:        l2txs[i].Type,
 860			Position:    l2txs[i].Position,
 861			FromIdx:     &l2txs[i].FromIdx,
 862			ToIdx:       l2txs[i].ToIdx,
 863			Amount:      l2txs[i].Amount,
 864			AmountFloat: amountFloat,
 865			BatchNum:    &l2txs[i].BatchNum,
 866			EthBlockNum: l2txs[i].EthBlockNum,
 867			// L2
 868			Fee:   &l2txs[i].Fee,
 869			Nonce: &l2txs[i].Nonce,
 870		})
 871	}
 872	return tracerr.Wrap(hdb.addTxs(d, txs))
 873}
 874
 875func (hdb *HistoryDB) addTxs(d meddler.DB, txs []txWrite) error {
 876	if len(txs) == 0 {
 877		return nil
 878	}
 879	return tracerr.Wrap(db.BulkInsert(
 880		d,
 881		`INSERT INTO tx (
 882			is_l1,
 883			id,
 884			type,
 885			position,
 886			from_idx,
 887			to_idx,
 888			amount,
 889			amount_f,
 890			token_id,
 891			batch_num,
 892			eth_block_num,
 893			to_forge_l1_txs_num,
 894			user_origin,
 895			from_eth_addr,
 896			from_bjj,
 897			deposit_amount,
 898			deposit_amount_f,
 899			fee,
 900			nonce
 901		) VALUES %s;`,
 902		txs[:],
 903	))
 904}
 905
 906// // GetTxs returns a list of txs from the DB
 907// func (hdb *HistoryDB) GetTxs() ([]common.Tx, error) {
 908// 	var txs []*common.Tx
 909// 	err := meddler.QueryAll(
 910// 		hdb.db, &txs,
 911// 		`SELECT * FROM tx
 912// 		ORDER BY (batch_num, position) ASC`,
 913// 	)
 914// 	return db.SlicePtrsToSlice(txs).([]common.Tx), err
 915// }
 916
 917// GetHistoryTx returns a tx from the DB given a TxID
 918func (hdb *HistoryDB) GetHistoryTx(txID common.TxID) (*TxAPI, error) {
 919	// Warning: amount_success and deposit_amount_success have true as default for
 920	// performance reasons. The expected default value is false (when txs are unforged)
 921	// this case is handled at the function func (tx TxAPI) MarshalJSON() ([]byte, error)
 922	tx := &TxAPI{}
 923	err := meddler.QueryRow(
 924		hdb.db, tx, `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 925		hez_idx(tx.from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 926		hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 927		tx.amount, tx.amount_success, tx.token_id, tx.amount_usd, 
 928		tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 929		tx.deposit_amount, tx.deposit_amount_usd, tx.deposit_amount_success, tx.fee, tx.fee_usd, tx.nonce,
 930		token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 931		token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 932		token.usd_update, block.timestamp
 933		FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 934		INNER JOIN block ON tx.eth_block_num = block.eth_block_num 
 935		WHERE tx.id = $1;`, txID,
 936	)
 937	return tx, tracerr.Wrap(err)
 938}
 939
 940// GetHistoryTxs returns a list of txs from the DB using the HistoryTx struct
 941// and pagination info
 942func (hdb *HistoryDB) GetHistoryTxs(
 943	ethAddr *ethCommon.Address, bjj *babyjub.PublicKeyComp,
 944	tokenID *common.TokenID, idx *common.Idx, batchNum *uint, txType *common.TxType,
 945	fromItem, limit *uint, order string,
 946) ([]TxAPI, uint64, error) {
 947	// Warning: amount_success and deposit_amount_success have true as default for
 948	// performance reasons. The expected default value is false (when txs are unforged)
 949	// this case is handled at the function func (tx TxAPI) MarshalJSON() ([]byte, error)
 950	if ethAddr != nil && bjj != nil {
 951		return nil, 0, tracerr.Wrap(errors.New("ethAddr and bjj are incompatible"))
 952	}
 953	var query string
 954	var args []interface{}
 955	queryStr := `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 956	hez_idx(tx.from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 957	hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 958	tx.amount, tx.amount_success, tx.token_id, tx.amount_usd, 
 959	tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 960	tx.deposit_amount, tx.deposit_amount_usd, tx.deposit_amount_success, tx.fee, tx.fee_usd, tx.nonce,
 961	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 962	token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 963	token.usd_update, block.timestamp, count(*) OVER() AS total_items 
 964	FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 965	INNER JOIN block ON tx.eth_block_num = block.eth_block_num `
 966	// Apply filters
 967	nextIsAnd := false
 968	// ethAddr filter
 969	if ethAddr != nil {
 970		queryStr += "WHERE (tx.from_eth_addr = ? OR tx.to_eth_addr = ?) "
 971		nextIsAnd = true
 972		args = append(args, ethAddr, ethAddr)
 973	} else if bjj != nil { // bjj filter
 974		queryStr += "WHERE (tx.from_bjj = ? OR tx.to_bjj = ?) "
 975		nextIsAnd = true
 976		args = append(args, bjj, bjj)
 977	}
 978	// tokenID filter
 979	if tokenID != nil {
 980		if nextIsAnd {
 981			queryStr += "AND "
 982		} else {
 983			queryStr += "WHERE "
 984		}
 985		queryStr += "tx.token_id = ? "
 986		args = append(args, tokenID)
 987		nextIsAnd = true
 988	}
 989	// idx filter
 990	if idx != nil {
 991		if nextIsAnd {
 992			queryStr += "AND "
 993		} else {
 994			queryStr += "WHERE "
 995		}
 996		queryStr += "(tx.from_idx = ? OR tx.to_idx = ?) "
 997		args = append(args, idx, idx)
 998		nextIsAnd = true
 999	}
1000	// batchNum filter
1001	if batchNum != nil {
1002		if nextIsAnd {
1003			queryStr += "AND "
1004		} else {
1005			queryStr += "WHERE "
1006		}
1007		queryStr += "tx.batch_num = ? "
1008		args = append(args, batchNum)
1009		nextIsAnd = true
1010	}
1011	// txType filter
1012	if txType != nil {
1013		if nextIsAnd {
1014			queryStr += "AND "
1015		} else {
1016			queryStr += "WHERE "
1017		}
1018		queryStr += "tx.type = ? "
1019		args = append(args, txType)
1020		nextIsAnd = true
1021	}
1022	if fromItem != nil {
1023		if nextIsAnd {
1024			queryStr += "AND "
1025		} else {
1026			queryStr += "WHERE "
1027		}
1028		if order == OrderAsc {
1029			queryStr += "tx.item_id >= ? "
1030		} else {
1031			queryStr += "tx.item_id <= ? "
1032		}
1033		args = append(args, fromItem)
1034		nextIsAnd = true
1035	}
1036	if nextIsAnd {
1037		queryStr += "AND "
1038	} else {
1039		queryStr += "WHERE "
1040	}
1041	queryStr += "tx.batch_num IS NOT NULL "
1042
1043	// pagination
1044	queryStr += "ORDER BY tx.item_id "
1045	if order == OrderAsc {
1046		queryStr += " ASC "
1047	} else {
1048		queryStr += " DESC "
1049	}
1050	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1051	query = hdb.db.Rebind(queryStr)
1052	// log.Debug(query)
1053	txsPtrs := []*TxAPI{}
1054	if err := meddler.QueryAll(hdb.db, &txsPtrs, query, args...); err != nil {
1055		return nil, 0, tracerr.Wrap(err)
1056	}
1057	txs := db.SlicePtrsToSlice(txsPtrs).([]TxAPI)
1058	if len(txs) == 0 {
1059		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
1060	}
1061	return txs, txs[0].TotalItems - uint64(len(txs)), nil
1062}
1063
1064// GetAllExits returns all exit from the DB
1065func (hdb *HistoryDB) GetAllExits() ([]common.ExitInfo, error) {
1066	var exits []*common.ExitInfo
1067	err := meddler.QueryAll(
1068		hdb.db, &exits,
1069		`SELECT exit_tree.batch_num, exit_tree.account_idx, exit_tree.merkle_proof,
1070		exit_tree.balance, exit_tree.instant_withdrawn, exit_tree.delayed_withdraw_request,
1071		exit_tree.delayed_withdrawn FROM exit_tree ORDER BY item_id;`,
1072	)
1073	return db.SlicePtrsToSlice(exits).([]common.ExitInfo), tracerr.Wrap(err)
1074}
1075
1076// GetExitAPI returns a exit from the DB
1077func (hdb *HistoryDB) GetExitAPI(batchNum *uint, idx *common.Idx) (*ExitAPI, error) {
1078	exit := &ExitAPI{}
1079	err := meddler.QueryRow(
1080		hdb.db, exit, `SELECT exit_tree.item_id, exit_tree.batch_num,
1081		hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1082		exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1083		exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1084		token.token_id, token.item_id AS token_item_id, 
1085		token.eth_block_num AS token_block, token.eth_addr, token.name, token.symbol, 
1086		token.decimals, token.usd, token.usd_update
1087		FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1088		INNER JOIN token ON account.token_id = token.token_id 
1089		WHERE exit_tree.batch_num = $1 AND exit_tree.account_idx = $2;`, batchNum, idx,
1090	)
1091	return exit, tracerr.Wrap(err)
1092}
1093
1094// GetExitsAPI returns a list of exits from the DB and pagination info
1095func (hdb *HistoryDB) GetExitsAPI(
1096	ethAddr *ethCommon.Address, bjj *babyjub.PublicKeyComp, tokenID *common.TokenID,
1097	idx *common.Idx, batchNum *uint, onlyPendingWithdraws *bool,
1098	fromItem, limit *uint, order string,
1099) ([]ExitAPI, uint64, error) {
1100	if ethAddr != nil && bjj != nil {
1101		return nil, 0, tracerr.Wrap(errors.New("ethAddr and bjj are incompatible"))
1102	}
1103	var query string
1104	var args []interface{}
1105	queryStr := `SELECT exit_tree.item_id, exit_tree.batch_num,
1106	hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1107	exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1108	exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1109	token.token_id, token.item_id AS token_item_id,
1110	token.eth_block_num AS token_block, token.eth_addr, token.name, token.symbol,
1111	token.decimals, token.usd, token.usd_update, COUNT(*) OVER() AS total_items
1112	FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1113	INNER JOIN token ON account.token_id = token.token_id `
1114	// Apply filters
1115	nextIsAnd := false
1116	// ethAddr filter
1117	if ethAddr != nil {
1118		queryStr += "WHERE account.eth_addr = ? "
1119		nextIsAnd = true
1120		args = append(args, ethAddr)
1121	} else if bjj != nil { // bjj filter
1122		queryStr += "WHERE account.bjj = ? "
1123		nextIsAnd = true
1124		args = append(args, bjj)
1125	}
1126	// tokenID filter
1127	if tokenID != nil {
1128		if nextIsAnd {
1129			queryStr += "AND "
1130		} else {
1131			queryStr += "WHERE "
1132		}
1133		queryStr += "account.token_id = ? "
1134		args = append(args, tokenID)
1135		nextIsAnd = true
1136	}
1137	// idx filter
1138	if idx != nil {
1139		if nextIsAnd {
1140			queryStr += "AND "
1141		} else {
1142			queryStr += "WHERE "
1143		}
1144		queryStr += "exit_tree.account_idx = ? "
1145		args = append(args, idx)
1146		nextIsAnd = true
1147	}
1148	// batchNum filter
1149	if batchNum != nil {
1150		if nextIsAnd {
1151			queryStr += "AND "
1152		} else {
1153			queryStr += "WHERE "
1154		}
1155		queryStr += "exit_tree.batch_num = ? "
1156		args = append(args, batchNum)
1157		nextIsAnd = true
1158	}
1159	// onlyPendingWithdraws
1160	if onlyPendingWithdraws != nil {
1161		if *onlyPendingWithdraws {
1162			if nextIsAnd {
1163				queryStr += "AND "
1164			} else {
1165				queryStr += "WHERE "
1166			}
1167			queryStr += "(exit_tree.instant_withdrawn IS NULL AND exit_tree.delayed_withdrawn IS NULL) "
1168			nextIsAnd = true
1169		}
1170	}
1171	if fromItem != nil {
1172		if nextIsAnd {
1173			queryStr += "AND "
1174		} else {
1175			queryStr += "WHERE "
1176		}
1177		if order == OrderAsc {
1178			queryStr += "exit_tree.item_id >= ? "
1179		} else {
1180			queryStr += "exit_tree.item_id <= ? "
1181		}
1182		args = append(args, fromItem)
1183		// nextIsAnd = true
1184	}
1185	// pagination
1186	queryStr += "ORDER BY exit_tree.item_id "
1187	if order == OrderAsc {
1188		queryStr += " ASC "
1189	} else {
1190		queryStr += " DESC "
1191	}
1192	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1193	query = hdb.db.Rebind(queryStr)
1194	// log.Debug(query)
1195	exits := []*ExitAPI{}
1196	if err := meddler.QueryAll(hdb.db, &exits, query, args...); err != nil {
1197		return nil, 0, tracerr.Wrap(err)
1198	}
1199	if len(exits) == 0 {
1200		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
1201	}
1202	return db.SlicePtrsToSlice(exits).([]ExitAPI), exits[0].TotalItems - uint64(len(exits)), nil
1203}
1204
1205// GetAllL1UserTxs returns all L1UserTxs from the DB
1206func (hdb *HistoryDB) GetAllL1UserTxs() ([]common.L1Tx, error) {
1207	var txs []*common.L1Tx
1208	err := meddler.QueryAll(
1209		hdb.db, &txs, // Note that '\x' gets parsed as a big.Int with value = 0
1210		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1211		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1212		tx.amount, (CASE WHEN tx.batch_num IS NULL THEN NULL WHEN tx.amount_success THEN tx.amount ELSE '\x' END) AS effective_amount,
1213		tx.deposit_amount, (CASE WHEN tx.batch_num IS NULL THEN NULL WHEN tx.deposit_amount_success THEN tx.deposit_amount ELSE '\x' END) AS effective_deposit_amount,
1214		tx.eth_block_num, tx.type, tx.batch_num
1215		FROM tx WHERE is_l1 = TRUE AND user_origin = TRUE ORDER BY item_id;`,
1216	)
1217	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
1218}
1219
1220// GetAllL1CoordinatorTxs returns all L1CoordinatorTxs from the DB
1221func (hdb *HistoryDB) GetAllL1CoordinatorTxs() ([]common.L1Tx, error) {
1222	var txs []*common.L1Tx
1223	// Since the query specifies that only coordinator txs are returned, it's safe to assume
1224	// that returned txs will always have effective amounts
1225	err := meddler.QueryAll(
1226		hdb.db, &txs,
1227		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1228		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1229		tx.amount, tx.amount AS effective_amount,
1230		tx.deposit_amount, tx.deposit_amount AS effective_deposit_amount,
1231		tx.eth_block_num, tx.type, tx.batch_num
1232		FROM tx WHERE is_l1 = TRUE AND user_origin = FALSE ORDER BY item_id;`,
1233	)
1234	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
1235}
1236
1237// GetAllL2Txs returns all L2Txs from the DB
1238func (hdb *HistoryDB) GetAllL2Txs() ([]common.L2Tx, error) {
1239	var txs []*common.L2Tx
1240	err := meddler.QueryAll(
1241		hdb.db, &txs,
1242		`SELECT tx.id, tx.batch_num, tx.position,
1243		tx.from_idx, tx.to_idx, tx.amount, tx.fee, tx.nonce,
1244		tx.type, tx.eth_block_num
1245		FROM tx WHERE is_l1 = FALSE ORDER BY item_id;`,
1246	)
1247	return db.SlicePtrsToSlice(txs).([]common.L2Tx), tracerr.Wrap(err)
1248}
1249
1250// GetUnforgedL1UserTxs gets L1 User Txs to be forged in the L1Batch with toForgeL1TxsNum.
1251func (hdb *HistoryDB) GetUnforgedL1UserTxs(toForgeL1TxsNum int64) ([]common.L1Tx, error) {
1252	var txs []*common.L1Tx
1253	err := meddler.QueryAll(
1254		hdb.db, &txs, // only L1 user txs can have batch_num set to null
1255		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1256		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1257		tx.amount, NULL AS effective_amount,
1258		tx.deposit_amount, NULL AS effective_deposit_amount,
1259		tx.eth_block_num, tx.type, tx.batch_num
1260		FROM tx WHERE batch_num IS NULL AND to_forge_l1_txs_num = $1
1261		ORDER BY position;`,
1262		toForgeL1TxsNum,
1263	)
1264	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
1265}
1266
1267// TODO: Think about chaning all the queries that return a last value, to queries that return the next valid value.
1268
1269// GetLastTxsPosition for a given to_forge_l1_txs_num
1270func (hdb *HistoryDB) GetLastTxsPosition(toForgeL1TxsNum int64) (int, error) {
1271	row := hdb.db.QueryRow(
1272		"SELECT position FROM tx WHERE to_forge_l1_txs_num = $1 ORDER BY position DESC;",
1273		toForgeL1TxsNum,
1274	)
1275	var lastL1TxsPosition int
1276	return lastL1TxsPosition, tracerr.Wrap(row.Scan(&lastL1TxsPosition))
1277}
1278
1279// GetSCVars returns the rollup, auction and wdelayer smart contracts variables at their last update.
1280func (hdb *HistoryDB) GetSCVars() (*common.RollupVariables, *common.AuctionVariables,
1281	*common.WDelayerVariables, error) {
1282	var rollup common.RollupVariables
1283	var auction common.AuctionVariables
1284	var wDelayer common.WDelayerVariables
1285	if err := meddler.QueryRow(hdb.db, &rollup,
1286		"SELECT * FROM rollup_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1287		return nil, nil, nil, tracerr.Wrap(err)
1288	}
1289	if err := meddler.QueryRow(hdb.db, &auction,
1290		"SELECT * FROM auction_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1291		return nil, nil, nil, tracerr.Wrap(err)
1292	}
1293	if err := meddler.QueryRow(hdb.db, &wDelayer,
1294		"SELECT * FROM wdelayer_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1295		return nil, nil, nil, tracerr.Wrap(err)
1296	}
1297	return &rollup, &auction, &wDelayer, nil
1298}
1299
1300func (hdb *HistoryDB) setRollupVars(d meddler.DB, rollup *common.RollupVariables) error {
1301	return tracerr.Wrap(meddler.Insert(d, "rollup_vars", rollup))
1302}
1303
1304func (hdb *HistoryDB) setAuctionVars(d meddler.DB, auction *common.AuctionVariables) error {
1305	return tracerr.Wrap(meddler.Insert(d, "auction_vars", auction))
1306}
1307
1308func (hdb *HistoryDB) setWDelayerVars(d meddler.DB, wDelayer *common.WDelayerVariables) error {
1309	return tracerr.Wrap(meddler.Insert(d, "wdelayer_vars", wDelayer))
1310}
1311
1312func (hdb *HistoryDB) addBucketUpdates(d meddler.DB, bucketUpdates []common.BucketUpdate) error {
1313	if len(bucketUpdates) == 0 {
1314		return nil
1315	}
1316	return tracerr.Wrap(db.BulkInsert(
1317		d,
1318		`INSERT INTO bucket_update (
1319		 	eth_block_num,
1320		 	num_bucket,
1321		 	block_stamp,
1322		 	withdrawals
1323		) VALUES %s;`,
1324		bucketUpdates[:],
1325	))
1326}
1327
1328// GetAllBucketUpdates retrieves all the bucket updates
1329func (hdb *HistoryDB) GetAllBucketUpdates() ([]common.BucketUpdate, error) {
1330	var bucketUpdates []*common.BucketUpdate
1331	err := meddler.QueryAll(
1332		hdb.db, &bucketUpdates,
1333		"SELECT * FROM bucket_update ORDER BY item_id;",
1334	)
1335	return db.SlicePtrsToSlice(bucketUpdates).([]common.BucketUpdate), tracerr.Wrap(err)
1336}
1337
1338func (hdb *HistoryDB) addTokenExchanges(d meddler.DB, tokenExchanges []common.TokenExchange) error {
1339	if len(tokenExchanges) == 0 {
1340		return nil
1341	}
1342	return tracerr.Wrap(db.BulkInsert(
1343		d,
1344		`INSERT INTO token_exchange (
1345			eth_block_num,
1346    			eth_addr,
1347    			value_usd
1348		) VALUES %s;`,
1349		tokenExchanges[:],
1350	))
1351}
1352
1353// GetAllTokenExchanges retrieves all the token exchanges
1354func (hdb *HistoryDB) GetAllTokenExchanges() ([]common.TokenExchange, error) {
1355	var tokenExchanges []*common.TokenExchange
1356	err := meddler.QueryAll(
1357		hdb.db, &tokenExchanges,
1358		"SELECT * FROM token_exchange ORDER BY item_id;",
1359	)
1360	return db.SlicePtrsToSlice(tokenExchanges).([]common.TokenExchange), tracerr.Wrap(err)
1361}
1362
1363func (hdb *HistoryDB) addEscapeHatchWithdrawals(d meddler.DB,
1364	escapeHatchWithdrawals []common.WDelayerEscapeHatchWithdrawal) error {
1365	if len(escapeHatchWithdrawals) == 0 {
1366		return nil
1367	}
1368	return tracerr.Wrap(db.BulkInsert(
1369		d,
1370		`INSERT INTO escape_hatch_withdrawal (
1371			eth_block_num,
1372			who_addr,
1373			to_addr,
1374			token_addr,
1375			amount
1376		) VALUES %s;`,
1377		escapeHatchWithdrawals[:],
1378	))
1379}
1380
1381// GetAllEscapeHatchWithdrawals retrieves all the escape hatch withdrawals
1382func (hdb *HistoryDB) GetAllEscapeHatchWithdrawals() ([]common.WDelayerEscapeHatchWithdrawal, error) {
1383	var escapeHatchWithdrawals []*common.WDelayerEscapeHatchWithdrawal
1384	err := meddler.QueryAll(
1385		hdb.db, &escapeHatchWithdrawals,
1386		"SELECT * FROM escape_hatch_withdrawal ORDER BY item_id;",
1387	)
1388	return db.SlicePtrsToSlice(escapeHatchWithdrawals).([]common.WDelayerEscapeHatchWithdrawal),
1389		tracerr.Wrap(err)
1390}
1391
1392// SetInitialSCVars sets the initial state of rollup, auction, wdelayer smart
1393// contract variables.  This initial state is stored linked to block 0, which
1394// always exist in the DB and is used to store initialization data that always
1395// exist in the smart contracts.
1396func (hdb *HistoryDB) SetInitialSCVars(rollup *common.RollupVariables,
1397	auction *common.AuctionVariables, wDelayer *common.WDelayerVariables) error {
1398	txn, err := hdb.db.Beginx()
1399	if err != nil {
1400		return tracerr.Wrap(err)
1401	}
1402	defer func() {
1403		if err != nil {
1404			db.Rollback(txn)
1405		}
1406	}()
1407	// Force EthBlockNum to be 0 because it's the block used to link data
1408	// that belongs to the creation of the smart contracts
1409	rollup.EthBlockNum = 0
1410	auction.EthBlockNum = 0
1411	wDelayer.EthBlockNum = 0
1412	auction.DefaultSlotSetBidSlotNum = 0
1413	if err := hdb.setRollupVars(txn, rollup); err != nil {
1414		return tracerr.Wrap(err)
1415	}
1416	if err := hdb.setAuctionVars(txn, auction); err != nil {
1417		return tracerr.Wrap(err)
1418	}
1419	if err := hdb.setWDelayerVars(txn, wDelayer); err != nil {
1420		return tracerr.Wrap(err)
1421	}
1422
1423	return tracerr.Wrap(txn.Commit())
1424}
1425
1426// setL1UserTxEffectiveAmounts sets the EffectiveAmount and EffectiveDepositAmount
1427// of the given l1UserTxs (with an UPDATE)
1428func (hdb *HistoryDB) setL1UserTxEffectiveAmounts(d sqlx.Ext, txs []common.L1Tx) error {
1429	if len(txs) == 0 {
1430		return nil
1431	}
1432	// Effective amounts are stored as success flags in the DB, with true value by default
1433	// to reduce the amount of updates. Therefore, only amounts that became uneffective should be
1434	// updated to become false
1435	type txUpdate struct {
1436		ID                   common.TxID `db:"id"`
1437		AmountSuccess        bool        `db:"amount_success"`
1438		DepositAmountSuccess bool        `db:"deposit_amount_success"`
1439	}
1440	txUpdates := []txUpdate{}
1441	equal := func(a *big.Int, b *big.Int) bool {
1442		return a.Cmp(b) == 0
1443	}
1444	for i := range txs {
1445		amountSuccess := equal(txs[i].Amount, txs[i].EffectiveAmount)
1446		depositAmountSuccess := equal(txs[i].DepositAmount, txs[i].EffectiveDepositAmount)
1447		if !amountSuccess || !depositAmountSuccess {
1448			txUpdates = append(txUpdates, txUpdate{
1449				ID:                   txs[i].TxID,
1450				AmountSuccess:        amountSuccess,
1451				DepositAmountSuccess: depositAmountSuccess,
1452			})
1453		}
1454	}
1455	const query string = `
1456		UPDATE tx SET
1457			amount_success = tx_update.amount_success,
1458			deposit_amount_success = tx_update.deposit_amount_success
1459		FROM (VALUES
1460			(NULL::::BYTEA, NULL::::BOOL, NULL::::BOOL),
1461			(:id, :amount_success, :deposit_amount_success)
1462		) as tx_update (id, amount_success, deposit_amount_success)
1463		WHERE tx.id = tx_update.id;
1464	`
1465	if len(txUpdates) > 0 {
1466		if _, err := sqlx.NamedExec(d, query, txUpdates); err != nil {
1467			return tracerr.Wrap(err)
1468		}
1469	}
1470	return nil
1471}
1472
1473// AddBlockSCData stores all the information of a block retrieved by the
1474// Synchronizer.  Blocks should be inserted in order, leaving no gaps because
1475// the pagination system of the API/DB depends on this.  Within blocks, all
1476// items should also be in the correct order (Accounts, Tokens, Txs, etc.)
1477func (hdb *HistoryDB) AddBlockSCData(blockData *common.BlockData) (err error) {
1478	txn, err := hdb.db.Beginx()
1479	if err != nil {
1480		return tracerr.Wrap(err)
1481	}
1482	defer func() {
1483		if err != nil {
1484			db.Rollback(txn)
1485		}
1486	}()
1487
1488	// Add block
1489	if err := hdb.addBlock(txn, &blockData.Block); err != nil {
1490		return tracerr.Wrap(err)
1491	}
1492
1493	// Add Coordinators
1494	if err := hdb.addCoordinators(txn, blockData.Auction.Coordinators); err != nil {
1495		return tracerr.Wrap(err)
1496	}
1497
1498	// Add Bids
1499	if err := hdb.addBids(txn, blockData.Auction.Bids); err != nil {
1500		return tracerr.Wrap(err)
1501	}
1502
1503	// Add Tokens
1504	if err := hdb.addTokens(txn, blockData.Rollup.AddedTokens); err != nil {
1505		return tracerr.Wrap(err)
1506	}
1507
1508	// Prepare user L1 txs to be added.
1509	// They must be added before the batch that will forge them (which can be in the same block)
1510	// and after the account that will be sent to (also can be in the same block).
1511	// Note: insert order is not relevant since item_id will be updated by a DB trigger when
1512	// the batch that forges those txs is inserted
1513	userL1s := make(map[common.BatchNum][]common.L1Tx)
1514	for i := range blockData.Rollup.L1UserTxs {
1515		batchThatForgesIsInTheBlock := false
1516		for _, batch := range blockData.Rollup.Batches {
1517			if batch.Batch.ForgeL1TxsNum != nil &&
1518				*batch.Batch.ForgeL1TxsNum == *blockData.Rollup.L1UserTxs[i].ToForgeL1TxsNum {
1519				// Tx is forged in this block. It's guaranteed that:
1520				// * the first batch of the block won't forge user L1 txs that have been added in this block
1521				// * batch nums are sequential therefore it's safe to add the tx at batch.BatchNum -1
1522				batchThatForgesIsInTheBlock = true
1523				addAtBatchNum := batch.Batch.BatchNum - 1
1524				userL1s[addAtBatchNum] = append(userL1s[addAtBatchNum], blockData.Rollup.L1UserTxs[i])
1525				break
1526			}
1527		}
1528		if !batchThatForgesIsInTheBlock {
1529			// User artificial batchNum 0 to add txs that are not forge in this block
1530			// after all the accounts of the block have been added
1531			userL1s[0] = append(userL1s[0], blockData.Rollup.L1UserTxs[i])
1532		}
1533	}
1534
1535	// Add Batches
1536	for i := range blockData.Rollup.Batches {
1537		batch := &blockData.Rollup.Batches[i]
1538
1539		// Add Batch: this will trigger an update on the DB
1540		// that will set the batch num of forged L1 txs in this batch
1541		if err = hdb.addBatch(txn, &batch.Batch); err != nil {
1542			return tracerr.Wrap(err)
1543		}
1544
1545		// Set the EffectiveAmount and EffectiveDepositAmount of all the
1546		// L1UserTxs that have been forged in this batch
1547		if err = hdb.setL1UserTxEffectiveAmounts(txn, batch.L1UserTxs); err != nil {
1548			return tracerr.Wrap(err)
1549		}
1550
1551		// Add accounts
1552		if err := hdb.addAccounts(txn, batch.CreatedAccounts); err != nil {
1553			return tracerr.Wrap(err)
1554		}
1555
1556		// Add forged l1 coordinator Txs
1557		if err := hdb.addL1Txs(txn, batch.L1CoordinatorTxs); err != nil {
1558			return tracerr.Wrap(err)
1559		}
1560
1561		// Add l2 Txs
1562		if err := hdb.addL2Txs(txn, batch.L2Txs); err != nil {
1563			return tracerr.Wrap(err)
1564		}
1565
1566		// Add user L1 txs that will be forged in next batch
1567		if userlL1s, ok := userL1s[batch.Batch.BatchNum]; ok {
1568			if err := hdb.addL1Txs(txn, userlL1s); err != nil {
1569				return tracerr.Wrap(err)
1570			}
1571		}
1572
1573		// Add exit tree
1574		if err := hdb.addExitTree(txn, batch.ExitTree); err != nil {
1575			return tracerr.Wrap(err)
1576		}
1577	}
1578	// Add user L1 txs that won't be forged in this block
1579	if userL1sNotForgedInThisBlock, ok := userL1s[0]; ok {
1580		if err := hdb.addL1Txs(txn, userL1sNotForgedInThisBlock); err != nil {
1581			return tracerr.Wrap(err)
1582		}
1583	}
1584
1585	// Set SC Vars if there was an update
1586	if blockData.Rollup.Vars != nil {
1587		if err := hdb.setRollupVars(txn, blockData.Rollup.Vars); err != nil {
1588			return tracerr.Wrap(err)
1589		}
1590	}
1591	if blockData.Auction.Vars != nil {
1592		if err := hdb.setAuctionVars(txn, blockData.Auction.Vars); err != nil {
1593			return tracerr.Wrap(err)
1594		}
1595	}
1596	if blockData.WDelayer.Vars != nil {
1597		if err := hdb.setWDelayerVars(txn, blockData.WDelayer.Vars); err != nil {
1598			return tracerr.Wrap(err)
1599		}
1600	}
1601
1602	// Update withdrawals in exit tree table
1603	if err := hdb.updateExitTree(txn, blockData.Block.Num,
1604		blockData.Rollup.Withdrawals, blockData.WDelayer.Withdrawals); err != nil {
1605		return tracerr.Wrap(err)
1606	}
1607
1608	// Add Escape Hatch Withdrawals
1609	if err := hdb.addEscapeHatchWithdrawals(txn,
1610		blockData.WDelayer.EscapeHatchWithdrawals); err != nil {
1611		return tracerr.Wrap(err)
1612	}
1613
1614	// Add Buckets withdrawals updates
1615	if err := hdb.addBucketUpdates(txn, blockData.Rollup.UpdateBucketWithdraw); err != nil {
1616		return tracerr.Wrap(err)
1617	}
1618
1619	// Add Token exchange updates
1620	if err := hdb.addTokenExchanges(txn, blockData.Rollup.TokenExchanges); err != nil {
1621		return tracerr.Wrap(err)
1622	}
1623
1624	return tracerr.Wrap(txn.Commit())
1625}
1626
1627// GetCoordinatorAPI returns a coordinator by its bidderAddr
1628func (hdb *HistoryDB) GetCoordinatorAPI(bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
1629	coordinator := &CoordinatorAPI{}
1630	err := meddler.QueryRow(hdb.db, coordinator, "SELECT * FROM coordinator WHERE bidder_addr = $1;", bidderAddr)
1631	return coordinator, tracerr.Wrap(err)
1632}
1633
1634// GetCoordinatorsAPI returns a list of coordinators from the DB and pagination info
1635func (hdb *HistoryDB) GetCoordinatorsAPI(
1636	bidderAddr, forgerAddr *ethCommon.Address,
1637	fromItem, limit *uint, order string,
1638) ([]CoordinatorAPI, uint64, error) {
1639	var query string
1640	var args []interface{}
1641	queryStr := `SELECT coordinator.*, 
1642	COUNT(*) OVER() AS total_items
1643	FROM coordinator `
1644	// Apply filters
1645	nextIsAnd := false
1646	if bidderAddr != nil {
1647		queryStr += "WHERE bidder_addr = ? "
1648		nextIsAnd = true
1649		args = append(args, bidderAddr)
1650	}
1651	if forgerAddr != nil {
1652		if nextIsAnd {
1653			queryStr += "AND "
1654		} else {
1655			queryStr += "WHERE "
1656		}
1657		queryStr += "forger_addr = ? "
1658		nextIsAnd = true
1659		args = append(args, forgerAddr)
1660	}
1661	if fromItem != nil {
1662		if nextIsAnd {
1663			queryStr += "AND "
1664		} else {
1665			queryStr += "WHERE "
1666		}
1667		if order == OrderAsc {
1668			queryStr += "coordinator.item_id >= ? "
1669		} else {
1670			queryStr += "coordinator.item_id <= ? "
1671		}
1672		args = append(args, fromItem)
1673	}
1674	// pagination
1675	queryStr += "ORDER BY coordinator.item_id "
1676	if order == OrderAsc {
1677		queryStr += " ASC "
1678	} else {
1679		queryStr += " DESC "
1680	}
1681	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1682	query = hdb.db.Rebind(queryStr)
1683
1684	coordinators := []*CoordinatorAPI{}
1685	if err := meddler.QueryAll(hdb.db, &coordinators, query, args...); err != nil {
1686		return nil, 0, tracerr.Wrap(err)
1687	}
1688	if len(coordinators) == 0 {
1689		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
1690	}
1691	return db.SlicePtrsToSlice(coordinators).([]CoordinatorAPI),
1692		coordinators[0].TotalItems - uint64(len(coordinators)), nil
1693}
1694
1695// AddAuctionVars insert auction vars into the DB
1696func (hdb *HistoryDB) AddAuctionVars(auctionVars *common.AuctionVariables) error {
1697	return tracerr.Wrap(meddler.Insert(hdb.db, "auction_vars", auctionVars))
1698}
1699
1700// GetAuctionVars returns auction variables
1701func (hdb *HistoryDB) GetAuctionVars() (*common.AuctionVariables, error) {
1702	auctionVars := &common.AuctionVariables{}
1703	err := meddler.QueryRow(
1704		hdb.db, auctionVars, `SELECT * FROM auction_vars;`,
1705	)
1706	return auctionVars, tracerr.Wrap(err)
1707}
1708
1709// GetAuctionVarsUntilSetSlotNum returns all the updates of the auction vars
1710// from the last entry in which DefaultSlotSetBidSlotNum <= slotNum
1711func (hdb *HistoryDB) GetAuctionVarsUntilSetSlotNum(slotNum int64, maxItems int) ([]MinBidInfo, error) {
1712	auctionVars := []*MinBidInfo{}
1713	query := `
1714		SELECT DISTINCT default_slot_set_bid, default_slot_set_bid_slot_num FROM auction_vars
1715		WHERE default_slot_set_bid_slot_num < $1
1716		ORDER BY default_slot_set_bid_slot_num DESC
1717		LIMIT $2;
1718	`
1719	err := meddler.QueryAll(hdb.db, &auctionVars, query, slotNum, maxItems)
1720	if err != nil {
1721		return nil, tracerr.Wrap(err)
1722	}
1723	return db.SlicePtrsToSlice(auctionVars).([]MinBidInfo), nil
1724}
1725
1726// GetAccountAPI returns an account by its index
1727func (hdb *HistoryDB) GetAccountAPI(idx common.Idx) (*AccountAPI, error) {
1728	account := &AccountAPI{}
1729	err := meddler.QueryRow(hdb.db, account, `SELECT account.item_id, hez_idx(account.idx, 
1730	token.symbol) as idx, account.batch_num, account.bjj, account.eth_addr,
1731	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1732	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update 
1733	FROM account INNER JOIN token ON account.token_id = token.token_id WHERE idx = $1;`, idx)
1734
1735	if err != nil {
1736		return nil, tracerr.Wrap(err)
1737	}
1738
1739	return account, nil
1740}
1741
1742// GetAccountsAPI returns a list of accounts from the DB and pagination info
1743func (hdb *HistoryDB) GetAccountsAPI(
1744	tokenIDs []common.TokenID, ethAddr *ethCommon.Address,
1745	bjj *babyjub.PublicKeyComp, fromItem, limit *uint, order string,
1746) ([]AccountAPI, uint64, error) {
1747	if ethAddr != nil && bjj != nil {
1748		return nil, 0, tracerr.Wrap(errors.New("ethAddr and bjj are incompatible"))
1749	}
1750	var query string
1751	var args []interface{}
1752	queryStr := `SELECT account.item_id, hez_idx(account.idx, token.symbol) as idx, account.batch_num, 
1753	account.bjj, account.eth_addr, token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1754	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update, 
1755	COUNT(*) OVER() AS total_items
1756	FROM account INNER JOIN token ON account.token_id = token.token_id `
1757	// Apply filters
1758	nextIsAnd := false
1759	// ethAddr filter
1760	if ethAddr != nil {
1761		queryStr += "WHERE account.eth_addr = ? "
1762		nextIsAnd = true
1763		args = append(args, ethAddr)
1764	} else if bjj != nil { // bjj filter
1765		queryStr += "WHERE account.bjj = ? "
1766		nextIsAnd = true
1767		args = append(args, bjj)
1768	}
1769	// tokenID filter
1770	if len(tokenIDs) > 0 {
1771		if nextIsAnd {
1772			queryStr += "AND "
1773		} else {
1774			queryStr += "WHERE "
1775		}
1776		queryStr += "account.token_id IN (?) "
1777		args = append(args, tokenIDs)
1778		nextIsAnd = true
1779	}
1780	if fromItem != nil {
1781		if nextIsAnd {
1782			queryStr += "AND "
1783		} else {
1784			queryStr += "WHERE "
1785		}
1786		if order == OrderAsc {
1787			queryStr += "account.item_id >= ? "
1788		} else {
1789			queryStr += "account.item_id <= ? "
1790		}
1791		args = append(args, fromItem)
1792	}
1793	// pagination
1794	queryStr += "ORDER BY account.item_id "
1795	if order == OrderAsc {
1796		queryStr += " ASC "
1797	} else {
1798		queryStr += " DESC "
1799	}
1800	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1801	query, argsQ, err := sqlx.In(queryStr, args...)
1802	if err != nil {
1803		return nil, 0, tracerr.Wrap(err)
1804	}
1805	query = hdb.db.Rebind(query)
1806
1807	accounts := []*AccountAPI{}
1808	if err := meddler.QueryAll(hdb.db, &accounts, query, argsQ...); err != nil {
1809		return nil, 0, tracerr.Wrap(err)
1810	}
1811	if len(accounts) == 0 {
1812		return nil, 0, tracerr.Wrap(sql.ErrNoRows)
1813	}
1814
1815	return db.SlicePtrsToSlice(accounts).([]AccountAPI),
1816		accounts[0].TotalItems - uint64(len(accounts)), nil
1817}
1818
1819// GetMetrics returns metrics
1820func (hdb *HistoryDB) GetMetrics(lastBatchNum common.BatchNum) (*Metrics, error) {
1821	metricsTotals := &MetricsTotals{}
1822	metrics := &Metrics{}
1823	err := meddler.QueryRow(
1824		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs,
1825		COALESCE (MIN(tx.batch_num), 0) as batch_num 
1826		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1827		WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS';`)
1828	if err != nil {
1829		return nil, tracerr.Wrap(err)
1830	}
1831
1832	metrics.TransactionsPerSecond = float64(metricsTotals.TotalTransactions / (24 * 60 * 60))
1833	if (lastBatchNum - metricsTotals.FirstBatchNum) > 0 {
1834		metrics.TransactionsPerBatch = float64(int64(metricsTotals.TotalTransactions) /
1835			int64(lastBatchNum-metricsTotals.FirstBatchNum))
1836	} else {
1837		metrics.TransactionsPerBatch = float64(0)
1838	}
1839
1840	err = meddler.QueryRow(
1841		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1842		COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
1843		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1844	if err != nil {
1845		return nil, tracerr.Wrap(err)
1846	}
1847	if metricsTotals.TotalBatches > 0 {
1848		metrics.BatchFrequency = float64((24 * 60 * 60) / metricsTotals.TotalBatches)
1849	} else {
1850		metrics.BatchFrequency = 0
1851	}
1852	if metricsTotals.TotalTransactions > 0 {
1853		metrics.AvgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1854	} else {
1855		metrics.AvgTransactionFee = 0
1856	}
1857	err = meddler.QueryRow(
1858		hdb.db, metrics,
1859		`SELECT COUNT(*) AS total_bjjs, COUNT(DISTINCT(bjj)) AS total_accounts FROM account;`)
1860	if err != nil {
1861		return nil, tracerr.Wrap(err)
1862	}
1863
1864	return metrics, nil
1865}
1866
1867// GetAvgTxFee returns average transaction fee of the last 1h
1868func (hdb *HistoryDB) GetAvgTxFee() (float64, error) {
1869	metricsTotals := &MetricsTotals{}
1870	err := meddler.QueryRow(
1871		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, 
1872		COALESCE (MIN(tx.batch_num), 0) as batch_num 
1873		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1874		WHERE block.timestamp >= NOW() - INTERVAL '1 HOURS';`)
1875	if err != nil {
1876		return 0, tracerr.Wrap(err)
1877	}
1878	err = meddler.QueryRow(
1879		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1880		COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
1881		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1882	if err != nil {
1883		return 0, tracerr.Wrap(err)
1884	}
1885
1886	var avgTransactionFee float64
1887	if metricsTotals.TotalTransactions > 0 {
1888		avgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1889	} else {
1890		avgTransactionFee = 0
1891	}
1892
1893	return avgTransactionFee, nil
1894}