arnaucube
arnaucube/hermez-nodePublic Self-hosted repository
hermez-node/db/historydb/historydb.go
db/historydb/historydb.goRaw
   1package historydb
   2
   3import (
   4	"errors"
   5	"fmt"
   6	"math"
   7	"math/big"
   8	"strings"
   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.item_id, batch.batch_num, batch.eth_block_num,
 175		batch.forger_addr, batch.fees_collected, batch.total_fees_usd, batch.state_root,
 176		batch.num_accounts, batch.exit_root, batch.forge_l1_txs_num, batch.slot_num,
 177		block.timestamp, block.hash,
 178	    COALESCE ((SELECT COUNT(*) FROM tx WHERE batch_num = batch.batch_num), 0) AS forged_txs
 179	    FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num
 180	 	WHERE batch_num = $1;`, batchNum,
 181	))
 182}
 183
 184// GetBatchesAPI return the batches applying the given filters
 185func (hdb *HistoryDB) GetBatchesAPI(
 186	minBatchNum, maxBatchNum, slotNum *uint,
 187	forgerAddr *ethCommon.Address,
 188	fromItem, limit *uint, order string,
 189) ([]BatchAPI, uint64, error) {
 190	var query string
 191	var args []interface{}
 192	queryStr := `SELECT batch.item_id, batch.batch_num, batch.eth_block_num,
 193	batch.forger_addr, batch.fees_collected, batch.total_fees_usd, batch.state_root,
 194	batch.num_accounts, batch.exit_root, batch.forge_l1_txs_num, batch.slot_num,
 195	block.timestamp, block.hash,
 196	COALESCE ((SELECT COUNT(*) FROM tx WHERE batch_num = batch.batch_num), 0) AS forged_txs,
 197	count(*) OVER() AS total_items
 198	FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num `
 199	// Apply filters
 200	nextIsAnd := false
 201	// minBatchNum filter
 202	if minBatchNum != nil {
 203		if nextIsAnd {
 204			queryStr += "AND "
 205		} else {
 206			queryStr += "WHERE "
 207		}
 208		queryStr += "batch.batch_num > ? "
 209		args = append(args, minBatchNum)
 210		nextIsAnd = true
 211	}
 212	// maxBatchNum filter
 213	if maxBatchNum != nil {
 214		if nextIsAnd {
 215			queryStr += "AND "
 216		} else {
 217			queryStr += "WHERE "
 218		}
 219		queryStr += "batch.batch_num < ? "
 220		args = append(args, maxBatchNum)
 221		nextIsAnd = true
 222	}
 223	// slotNum filter
 224	if slotNum != nil {
 225		if nextIsAnd {
 226			queryStr += "AND "
 227		} else {
 228			queryStr += "WHERE "
 229		}
 230		queryStr += "batch.slot_num = ? "
 231		args = append(args, slotNum)
 232		nextIsAnd = true
 233	}
 234	// forgerAddr filter
 235	if forgerAddr != nil {
 236		if nextIsAnd {
 237			queryStr += "AND "
 238		} else {
 239			queryStr += "WHERE "
 240		}
 241		queryStr += "batch.forger_addr = ? "
 242		args = append(args, forgerAddr)
 243		nextIsAnd = true
 244	}
 245	// pagination
 246	if fromItem != nil {
 247		if nextIsAnd {
 248			queryStr += "AND "
 249		} else {
 250			queryStr += "WHERE "
 251		}
 252		if order == OrderAsc {
 253			queryStr += "batch.item_id >= ? "
 254		} else {
 255			queryStr += "batch.item_id <= ? "
 256		}
 257		args = append(args, fromItem)
 258	}
 259	queryStr += "ORDER BY batch.item_id "
 260	if order == OrderAsc {
 261		queryStr += " ASC "
 262	} else {
 263		queryStr += " DESC "
 264	}
 265	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 266	query = hdb.db.Rebind(queryStr)
 267	// log.Debug(query)
 268	batchPtrs := []*BatchAPI{}
 269	if err := meddler.QueryAll(hdb.db, &batchPtrs, query, args...); err != nil {
 270		return nil, 0, tracerr.Wrap(err)
 271	}
 272	batches := db.SlicePtrsToSlice(batchPtrs).([]BatchAPI)
 273	if len(batches) == 0 {
 274		return batches, 0, nil
 275	}
 276	return batches, batches[0].TotalItems - uint64(len(batches)), nil
 277}
 278
 279// GetAllBatches retrieve all batches from the DB
 280func (hdb *HistoryDB) GetAllBatches() ([]common.Batch, error) {
 281	var batches []*common.Batch
 282	err := meddler.QueryAll(
 283		hdb.db, &batches,
 284		`SELECT batch.batch_num, batch.eth_block_num, batch.forger_addr, batch.fees_collected,
 285		 batch.fee_idxs_coordinator, batch.state_root, batch.num_accounts, batch.last_idx, batch.exit_root,
 286		 batch.forge_l1_txs_num, batch.slot_num, batch.total_fees_usd FROM batch
 287		 ORDER BY item_id;`,
 288	)
 289	return db.SlicePtrsToSlice(batches).([]common.Batch), tracerr.Wrap(err)
 290}
 291
 292// GetBatches retrieve batches from the DB, given a range of batch numbers defined by from and to
 293func (hdb *HistoryDB) GetBatches(from, to common.BatchNum) ([]common.Batch, error) {
 294	var batches []*common.Batch
 295	err := meddler.QueryAll(
 296		hdb.db, &batches,
 297		`SELECT batch_num, eth_block_num, forger_addr, fees_collected, fee_idxs_coordinator, 
 298		state_root, num_accounts, last_idx, exit_root, forge_l1_txs_num, slot_num, total_fees_usd 
 299		FROM batch WHERE $1 <= batch_num AND batch_num < $2 ORDER BY batch_num;`,
 300		from, to,
 301	)
 302	return db.SlicePtrsToSlice(batches).([]common.Batch), tracerr.Wrap(err)
 303}
 304
 305// GetFirstBatchBlockNumBySlot returns the ethereum block number of the first
 306// batch within a slot
 307func (hdb *HistoryDB) GetFirstBatchBlockNumBySlot(slotNum int64) (int64, error) {
 308	row := hdb.db.QueryRow(
 309		`SELECT eth_block_num FROM batch
 310		WHERE slot_num = $1 ORDER BY batch_num ASC LIMIT 1;`, slotNum,
 311	)
 312	var blockNum int64
 313	return blockNum, tracerr.Wrap(row.Scan(&blockNum))
 314}
 315
 316// GetLastBatchNum returns the BatchNum of the latest forged batch
 317func (hdb *HistoryDB) GetLastBatchNum() (common.BatchNum, error) {
 318	row := hdb.db.QueryRow("SELECT batch_num FROM batch ORDER BY batch_num DESC LIMIT 1;")
 319	var batchNum common.BatchNum
 320	return batchNum, tracerr.Wrap(row.Scan(&batchNum))
 321}
 322
 323// GetLastL1BatchBlockNum returns the blockNum of the latest forged l1Batch
 324func (hdb *HistoryDB) GetLastL1BatchBlockNum() (int64, error) {
 325	row := hdb.db.QueryRow(`SELECT eth_block_num FROM batch
 326		WHERE forge_l1_txs_num IS NOT NULL
 327		ORDER BY batch_num DESC LIMIT 1;`)
 328	var blockNum int64
 329	return blockNum, tracerr.Wrap(row.Scan(&blockNum))
 330}
 331
 332// GetLastL1TxsNum returns the greatest ForgeL1TxsNum in the DB from forged
 333// batches.  If there's no batch in the DB (nil, nil) is returned.
 334func (hdb *HistoryDB) GetLastL1TxsNum() (*int64, error) {
 335	row := hdb.db.QueryRow("SELECT MAX(forge_l1_txs_num) FROM batch;")
 336	lastL1TxsNum := new(int64)
 337	return lastL1TxsNum, tracerr.Wrap(row.Scan(&lastL1TxsNum))
 338}
 339
 340// Reorg deletes all the information that was added into the DB after the
 341// lastValidBlock.  If lastValidBlock is negative, all block information is
 342// deleted.
 343func (hdb *HistoryDB) Reorg(lastValidBlock int64) error {
 344	var err error
 345	if lastValidBlock < 0 {
 346		_, err = hdb.db.Exec("DELETE FROM block;")
 347	} else {
 348		_, err = hdb.db.Exec("DELETE FROM block WHERE eth_block_num > $1;", lastValidBlock)
 349	}
 350	return tracerr.Wrap(err)
 351}
 352
 353// AddBids insert Bids into the DB
 354func (hdb *HistoryDB) AddBids(bids []common.Bid) error { return hdb.addBids(hdb.db, bids) }
 355func (hdb *HistoryDB) addBids(d meddler.DB, bids []common.Bid) error {
 356	if len(bids) == 0 {
 357		return nil
 358	}
 359	// TODO: check the coordinator info
 360	return tracerr.Wrap(db.BulkInsert(
 361		d,
 362		"INSERT INTO bid (slot_num, bid_value, eth_block_num, bidder_addr) VALUES %s;",
 363		bids[:],
 364	))
 365}
 366
 367// GetAllBids retrieve all bids from the DB
 368func (hdb *HistoryDB) GetAllBids() ([]common.Bid, error) {
 369	var bids []*common.Bid
 370	err := meddler.QueryAll(
 371		hdb.db, &bids,
 372		`SELECT bid.slot_num, bid.bid_value, bid.eth_block_num, bid.bidder_addr FROM bid
 373		ORDER BY item_id;`,
 374	)
 375	return db.SlicePtrsToSlice(bids).([]common.Bid), tracerr.Wrap(err)
 376}
 377
 378// GetBestBidAPI returns the best bid in specific slot by slotNum
 379func (hdb *HistoryDB) GetBestBidAPI(slotNum *int64) (BidAPI, error) {
 380	bid := &BidAPI{}
 381	err := meddler.QueryRow(
 382		hdb.db, bid, `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url 
 383		FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num
 384		INNER JOIN (
 385			SELECT bidder_addr, MAX(item_id) AS item_id FROM coordinator
 386			GROUP BY bidder_addr
 387		) c ON bid.bidder_addr = c.bidder_addr 
 388		INNER JOIN coordinator ON c.item_id = coordinator.item_id 
 389		WHERE slot_num = $1 ORDER BY item_id DESC LIMIT 1;`, slotNum,
 390	)
 391	return *bid, tracerr.Wrap(err)
 392}
 393
 394// GetBestBidCoordinator returns the forger address of the highest bidder in a slot by slotNum
 395func (hdb *HistoryDB) GetBestBidCoordinator(slotNum int64) (*common.BidCoordinator, error) {
 396	bidCoord := &common.BidCoordinator{}
 397	err := meddler.QueryRow(
 398		hdb.db, bidCoord,
 399		`SELECT (
 400			SELECT default_slot_set_bid
 401			FROM auction_vars
 402			WHERE default_slot_set_bid_slot_num <= $1
 403			ORDER BY eth_block_num DESC LIMIT 1
 404		),
 405		bid.slot_num, bid.bid_value, bid.bidder_addr,
 406		coordinator.forger_addr, coordinator.url
 407		FROM bid
 408		INNER JOIN (
 409			SELECT bidder_addr, MAX(item_id) AS item_id FROM coordinator
 410			GROUP BY bidder_addr
 411		) c ON bid.bidder_addr = c.bidder_addr 
 412		INNER JOIN coordinator ON c.item_id = coordinator.item_id
 413		WHERE bid.slot_num = $1 ORDER BY bid.item_id DESC LIMIT 1;`,
 414		slotNum)
 415
 416	return bidCoord, tracerr.Wrap(err)
 417}
 418
 419// GetBestBidsAPI returns the best bid in specific slot by slotNum
 420func (hdb *HistoryDB) GetBestBidsAPI(
 421	minSlotNum, maxSlotNum *int64,
 422	bidderAddr *ethCommon.Address,
 423	limit *uint, order string,
 424) ([]BidAPI, uint64, error) {
 425	var query string
 426	var args []interface{}
 427	// JOIN the best bid of each slot with the latest update of each coordinator
 428	queryStr := `SELECT b.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 429	COUNT(*) OVER() AS total_items FROM (
 430	   SELECT slot_num, MAX(item_id) as maxitem 
 431	   FROM bid GROUP BY slot_num
 432	)
 433	AS x INNER JOIN bid AS b ON b.item_id = x.maxitem
 434	INNER JOIN block ON b.eth_block_num = block.eth_block_num
 435	INNER JOIN (
 436		SELECT bidder_addr, MAX(item_id) AS item_id FROM coordinator
 437		GROUP BY bidder_addr
 438	) c ON b.bidder_addr = c.bidder_addr 
 439	INNER JOIN coordinator ON c.item_id = coordinator.item_id 
 440	WHERE (b.slot_num >= ? AND b.slot_num <= ?)`
 441	args = append(args, minSlotNum)
 442	args = append(args, maxSlotNum)
 443	// Apply filters
 444	if bidderAddr != nil {
 445		queryStr += " AND b.bidder_addr = ? "
 446		args = append(args, bidderAddr)
 447	}
 448	queryStr += " ORDER BY b.slot_num "
 449	if order == OrderAsc {
 450		queryStr += "ASC "
 451	} else {
 452		queryStr += "DESC "
 453	}
 454	if limit != nil {
 455		queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 456	}
 457	query = hdb.db.Rebind(queryStr)
 458	bidPtrs := []*BidAPI{}
 459	if err := meddler.QueryAll(hdb.db, &bidPtrs, query, args...); err != nil {
 460		return nil, 0, tracerr.Wrap(err)
 461	}
 462	// log.Debug(query)
 463	bids := db.SlicePtrsToSlice(bidPtrs).([]BidAPI)
 464	if len(bids) == 0 {
 465		return bids, 0, nil
 466	}
 467	return bids, bids[0].TotalItems - uint64(len(bids)), nil
 468}
 469
 470// GetBidsAPI return the bids applying the given filters
 471func (hdb *HistoryDB) GetBidsAPI(
 472	slotNum *int64, bidderAddr *ethCommon.Address,
 473	fromItem, limit *uint, order string,
 474) ([]BidAPI, uint64, error) {
 475	var query string
 476	var args []interface{}
 477	// JOIN each bid with the latest update of each coordinator
 478	queryStr := `SELECT bid.*, block.timestamp, coord.forger_addr, coord.url, 
 479	COUNT(*) OVER() AS total_items
 480	FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 481	INNER JOIN (
 482		SELECT bidder_addr, MAX(item_id) AS item_id FROM coordinator
 483		GROUP BY bidder_addr
 484	) c ON bid.bidder_addr = c.bidder_addr 
 485	INNER JOIN coordinator coord ON c.item_id = coord.item_id `
 486	// Apply filters
 487	nextIsAnd := false
 488	// slotNum filter
 489	if slotNum != nil {
 490		if nextIsAnd {
 491			queryStr += "AND "
 492		} else {
 493			queryStr += "WHERE "
 494		}
 495		queryStr += "bid.slot_num = ? "
 496		args = append(args, slotNum)
 497		nextIsAnd = true
 498	}
 499	// bidder filter
 500	if bidderAddr != nil {
 501		if nextIsAnd {
 502			queryStr += "AND "
 503		} else {
 504			queryStr += "WHERE "
 505		}
 506		queryStr += "bid.bidder_addr = ? "
 507		args = append(args, bidderAddr)
 508		nextIsAnd = true
 509	}
 510	if fromItem != nil {
 511		if nextIsAnd {
 512			queryStr += "AND "
 513		} else {
 514			queryStr += "WHERE "
 515		}
 516		if order == OrderAsc {
 517			queryStr += "bid.item_id >= ? "
 518		} else {
 519			queryStr += "bid.item_id <= ? "
 520		}
 521		args = append(args, fromItem)
 522	}
 523	// pagination
 524	queryStr += "ORDER BY bid.item_id "
 525	if order == OrderAsc {
 526		queryStr += "ASC "
 527	} else {
 528		queryStr += "DESC "
 529	}
 530	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 531	query, argsQ, err := sqlx.In(queryStr, args...)
 532	if err != nil {
 533		return nil, 0, tracerr.Wrap(err)
 534	}
 535	query = hdb.db.Rebind(query)
 536	bids := []*BidAPI{}
 537	if err := meddler.QueryAll(hdb.db, &bids, query, argsQ...); err != nil {
 538		return nil, 0, tracerr.Wrap(err)
 539	}
 540	if len(bids) == 0 {
 541		return []BidAPI{}, 0, nil
 542	}
 543	return db.SlicePtrsToSlice(bids).([]BidAPI), bids[0].TotalItems - uint64(len(bids)), nil
 544}
 545
 546// AddCoordinators insert Coordinators into the DB
 547func (hdb *HistoryDB) AddCoordinators(coordinators []common.Coordinator) error {
 548	return tracerr.Wrap(hdb.addCoordinators(hdb.db, coordinators))
 549}
 550func (hdb *HistoryDB) addCoordinators(d meddler.DB, coordinators []common.Coordinator) error {
 551	if len(coordinators) == 0 {
 552		return nil
 553	}
 554	return tracerr.Wrap(db.BulkInsert(
 555		d,
 556		"INSERT INTO coordinator (bidder_addr, forger_addr, eth_block_num, url) VALUES %s;",
 557		coordinators[:],
 558	))
 559}
 560
 561// AddExitTree insert Exit tree into the DB
 562func (hdb *HistoryDB) AddExitTree(exitTree []common.ExitInfo) error {
 563	return tracerr.Wrap(hdb.addExitTree(hdb.db, exitTree))
 564}
 565func (hdb *HistoryDB) addExitTree(d meddler.DB, exitTree []common.ExitInfo) error {
 566	if len(exitTree) == 0 {
 567		return nil
 568	}
 569	return tracerr.Wrap(db.BulkInsert(
 570		d,
 571		"INSERT INTO exit_tree (batch_num, account_idx, merkle_proof, balance, "+
 572			"instant_withdrawn, delayed_withdraw_request, delayed_withdrawn) VALUES %s;",
 573		exitTree[:],
 574	))
 575}
 576
 577func (hdb *HistoryDB) updateExitTree(d sqlx.Ext, blockNum int64,
 578	rollupWithdrawals []common.WithdrawInfo, wDelayerWithdrawals []common.WDelayerTransfer) error {
 579	if len(rollupWithdrawals) == 0 && len(wDelayerWithdrawals) == 0 {
 580		return nil
 581	}
 582	type withdrawal struct {
 583		BatchNum               int64              `db:"batch_num"`
 584		AccountIdx             int64              `db:"account_idx"`
 585		InstantWithdrawn       *int64             `db:"instant_withdrawn"`
 586		DelayedWithdrawRequest *int64             `db:"delayed_withdraw_request"`
 587		DelayedWithdrawn       *int64             `db:"delayed_withdrawn"`
 588		Owner                  *ethCommon.Address `db:"owner"`
 589		Token                  *ethCommon.Address `db:"token"`
 590	}
 591	withdrawals := make([]withdrawal, len(rollupWithdrawals)+len(wDelayerWithdrawals))
 592	for i := range rollupWithdrawals {
 593		info := &rollupWithdrawals[i]
 594		withdrawals[i] = withdrawal{
 595			BatchNum:   int64(info.NumExitRoot),
 596			AccountIdx: int64(info.Idx),
 597		}
 598		if info.InstantWithdraw {
 599			withdrawals[i].InstantWithdrawn = &blockNum
 600		} else {
 601			withdrawals[i].DelayedWithdrawRequest = &blockNum
 602			withdrawals[i].Owner = &info.Owner
 603			withdrawals[i].Token = &info.Token
 604		}
 605	}
 606	for i := range wDelayerWithdrawals {
 607		info := &wDelayerWithdrawals[i]
 608		withdrawals[len(rollupWithdrawals)+i] = withdrawal{
 609			DelayedWithdrawn: &blockNum,
 610			Owner:            &info.Owner,
 611			Token:            &info.Token,
 612		}
 613	}
 614	// In VALUES we set an initial row of NULLs to set the types of each
 615	// variable passed as argument
 616	const query string = `
 617		UPDATE exit_tree e SET
 618			instant_withdrawn = d.instant_withdrawn,
 619			delayed_withdraw_request = CASE
 620				WHEN e.delayed_withdraw_request IS NOT NULL THEN e.delayed_withdraw_request
 621				ELSE d.delayed_withdraw_request
 622			END,
 623			delayed_withdrawn = d.delayed_withdrawn,
 624			owner = d.owner,
 625			token = d.token
 626		FROM (VALUES
 627			(NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BYTEA, NULL::::BYTEA),
 628			(:batch_num,
 629			 :account_idx,
 630			 :instant_withdrawn,
 631			 :delayed_withdraw_request,
 632			 :delayed_withdrawn,
 633			 :owner,
 634			 :token)
 635		) as d (batch_num, account_idx, instant_withdrawn, delayed_withdraw_request, delayed_withdrawn, owner, token)
 636		WHERE
 637			(d.batch_num IS NOT NULL AND e.batch_num = d.batch_num AND e.account_idx = d.account_idx) OR
 638			(d.delayed_withdrawn IS NOT NULL AND e.delayed_withdrawn IS NULL AND e.owner = d.owner AND e.token = d.token);
 639		`
 640	if len(withdrawals) > 0 {
 641		if _, err := sqlx.NamedExec(d, query, withdrawals); err != nil {
 642			return tracerr.Wrap(err)
 643		}
 644	}
 645
 646	return nil
 647}
 648
 649// AddToken insert a token into the DB
 650func (hdb *HistoryDB) AddToken(token *common.Token) error {
 651	return tracerr.Wrap(meddler.Insert(hdb.db, "token", token))
 652}
 653
 654// AddTokens insert tokens into the DB
 655func (hdb *HistoryDB) AddTokens(tokens []common.Token) error { return hdb.addTokens(hdb.db, tokens) }
 656func (hdb *HistoryDB) addTokens(d meddler.DB, tokens []common.Token) error {
 657	if len(tokens) == 0 {
 658		return nil
 659	}
 660	// Sanitize name and symbol
 661	for i, token := range tokens {
 662		token.Name = strings.ToValidUTF8(token.Name, " ")
 663		token.Symbol = strings.ToValidUTF8(token.Symbol, " ")
 664		tokens[i] = token
 665	}
 666	return tracerr.Wrap(db.BulkInsert(
 667		d,
 668		`INSERT INTO token (
 669			token_id,
 670			eth_block_num,
 671			eth_addr,
 672			name,
 673			symbol,
 674			decimals
 675		) VALUES %s;`,
 676		tokens[:],
 677	))
 678}
 679
 680// UpdateTokenValue updates the USD value of a token
 681func (hdb *HistoryDB) UpdateTokenValue(tokenSymbol string, value float64) error {
 682	// Sanitize symbol
 683	tokenSymbol = strings.ToValidUTF8(tokenSymbol, " ")
 684
 685	_, err := hdb.db.Exec(
 686		"UPDATE token SET usd = $1 WHERE symbol = $2;",
 687		value, tokenSymbol,
 688	)
 689	return tracerr.Wrap(err)
 690}
 691
 692// GetToken returns a token from the DB given a TokenID
 693func (hdb *HistoryDB) GetToken(tokenID common.TokenID) (*TokenWithUSD, error) {
 694	token := &TokenWithUSD{}
 695	err := meddler.QueryRow(
 696		hdb.db, token, `SELECT * FROM token WHERE token_id = $1;`, tokenID,
 697	)
 698	return token, tracerr.Wrap(err)
 699}
 700
 701// GetAllTokens returns all tokens from the DB
 702func (hdb *HistoryDB) GetAllTokens() ([]TokenWithUSD, error) {
 703	var tokens []*TokenWithUSD
 704	err := meddler.QueryAll(
 705		hdb.db, &tokens,
 706		"SELECT * FROM token ORDER BY token_id;",
 707	)
 708	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), tracerr.Wrap(err)
 709}
 710
 711// GetTokens returns a list of tokens from the DB
 712func (hdb *HistoryDB) GetTokens(
 713	ids []common.TokenID, symbols []string, name string, fromItem,
 714	limit *uint, order string,
 715) ([]TokenWithUSD, uint64, error) {
 716	var query string
 717	var args []interface{}
 718	queryStr := `SELECT * , COUNT(*) OVER() AS total_items FROM token `
 719	// Apply filters
 720	nextIsAnd := false
 721	if len(ids) > 0 {
 722		queryStr += "WHERE token_id IN (?) "
 723		nextIsAnd = true
 724		args = append(args, ids)
 725	}
 726	if len(symbols) > 0 {
 727		if nextIsAnd {
 728			queryStr += "AND "
 729		} else {
 730			queryStr += "WHERE "
 731		}
 732		queryStr += "symbol IN (?) "
 733		args = append(args, symbols)
 734		nextIsAnd = true
 735	}
 736	if name != "" {
 737		if nextIsAnd {
 738			queryStr += "AND "
 739		} else {
 740			queryStr += "WHERE "
 741		}
 742		queryStr += "name ~ ? "
 743		args = append(args, name)
 744		nextIsAnd = true
 745	}
 746	if fromItem != nil {
 747		if nextIsAnd {
 748			queryStr += "AND "
 749		} else {
 750			queryStr += "WHERE "
 751		}
 752		if order == OrderAsc {
 753			queryStr += "item_id >= ? "
 754		} else {
 755			queryStr += "item_id <= ? "
 756		}
 757		args = append(args, fromItem)
 758	}
 759	// pagination
 760	queryStr += "ORDER BY item_id "
 761	if order == OrderAsc {
 762		queryStr += "ASC "
 763	} else {
 764		queryStr += "DESC "
 765	}
 766	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 767	query, argsQ, err := sqlx.In(queryStr, args...)
 768	if err != nil {
 769		return nil, 0, tracerr.Wrap(err)
 770	}
 771	query = hdb.db.Rebind(query)
 772	tokens := []*TokenWithUSD{}
 773	if err := meddler.QueryAll(hdb.db, &tokens, query, argsQ...); err != nil {
 774		return nil, 0, tracerr.Wrap(err)
 775	}
 776	if len(tokens) == 0 {
 777		return []TokenWithUSD{}, 0, nil
 778	}
 779	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), uint64(len(tokens)) - tokens[0].TotalItems, nil
 780}
 781
 782// GetTokenSymbols returns all the token symbols from the DB
 783func (hdb *HistoryDB) GetTokenSymbols() ([]string, error) {
 784	var tokenSymbols []string
 785	rows, err := hdb.db.Query("SELECT symbol FROM token;")
 786	if err != nil {
 787		return nil, tracerr.Wrap(err)
 788	}
 789	defer db.RowsClose(rows)
 790	sym := new(string)
 791	for rows.Next() {
 792		err = rows.Scan(sym)
 793		if err != nil {
 794			return nil, tracerr.Wrap(err)
 795		}
 796		tokenSymbols = append(tokenSymbols, *sym)
 797	}
 798	return tokenSymbols, nil
 799}
 800
 801// AddAccounts insert accounts into the DB
 802func (hdb *HistoryDB) AddAccounts(accounts []common.Account) error {
 803	return tracerr.Wrap(hdb.addAccounts(hdb.db, accounts))
 804}
 805func (hdb *HistoryDB) addAccounts(d meddler.DB, accounts []common.Account) error {
 806	if len(accounts) == 0 {
 807		return nil
 808	}
 809	return tracerr.Wrap(db.BulkInsert(
 810		d,
 811		`INSERT INTO account (
 812			idx,
 813			token_id,
 814			batch_num,
 815			bjj,
 816			eth_addr
 817		) VALUES %s;`,
 818		accounts[:],
 819	))
 820}
 821
 822// GetAllAccounts returns a list of accounts from the DB
 823func (hdb *HistoryDB) GetAllAccounts() ([]common.Account, error) {
 824	var accs []*common.Account
 825	err := meddler.QueryAll(
 826		hdb.db, &accs,
 827		"SELECT idx, token_id, batch_num, bjj, eth_addr FROM account ORDER BY idx;",
 828	)
 829	return db.SlicePtrsToSlice(accs).([]common.Account), tracerr.Wrap(err)
 830}
 831
 832// AddL1Txs inserts L1 txs to the DB. USD and DepositAmountUSD will be set automatically before storing the tx.
 833// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 834// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 835// EffectiveAmount and EffectiveDepositAmount are seted with default values by the DB.
 836func (hdb *HistoryDB) AddL1Txs(l1txs []common.L1Tx) error {
 837	return tracerr.Wrap(hdb.addL1Txs(hdb.db, l1txs))
 838}
 839
 840// addL1Txs inserts L1 txs to the DB. USD and DepositAmountUSD will be set automatically before storing the tx.
 841// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 842// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 843// EffectiveAmount and EffectiveDepositAmount are seted with default values by the DB.
 844func (hdb *HistoryDB) addL1Txs(d meddler.DB, l1txs []common.L1Tx) error {
 845	if len(l1txs) == 0 {
 846		return nil
 847	}
 848	txs := []txWrite{}
 849	for i := 0; i < len(l1txs); i++ {
 850		af := new(big.Float).SetInt(l1txs[i].Amount)
 851		amountFloat, _ := af.Float64()
 852		laf := new(big.Float).SetInt(l1txs[i].DepositAmount)
 853		depositAmountFloat, _ := laf.Float64()
 854		var effectiveFromIdx *common.Idx
 855		if l1txs[i].UserOrigin {
 856			if l1txs[i].Type != common.TxTypeCreateAccountDeposit &&
 857				l1txs[i].Type != common.TxTypeCreateAccountDepositTransfer {
 858				effectiveFromIdx = &l1txs[i].FromIdx
 859			}
 860		} else {
 861			effectiveFromIdx = &l1txs[i].EffectiveFromIdx
 862		}
 863		txs = append(txs, txWrite{
 864			// Generic
 865			IsL1:             true,
 866			TxID:             l1txs[i].TxID,
 867			Type:             l1txs[i].Type,
 868			Position:         l1txs[i].Position,
 869			FromIdx:          &l1txs[i].FromIdx,
 870			EffectiveFromIdx: effectiveFromIdx,
 871			ToIdx:            l1txs[i].ToIdx,
 872			Amount:           l1txs[i].Amount,
 873			AmountFloat:      amountFloat,
 874			TokenID:          l1txs[i].TokenID,
 875			BatchNum:         l1txs[i].BatchNum,
 876			EthBlockNum:      l1txs[i].EthBlockNum,
 877			// L1
 878			ToForgeL1TxsNum:    l1txs[i].ToForgeL1TxsNum,
 879			UserOrigin:         &l1txs[i].UserOrigin,
 880			FromEthAddr:        &l1txs[i].FromEthAddr,
 881			FromBJJ:            &l1txs[i].FromBJJ,
 882			DepositAmount:      l1txs[i].DepositAmount,
 883			DepositAmountFloat: &depositAmountFloat,
 884		})
 885	}
 886	return tracerr.Wrap(hdb.addTxs(d, txs))
 887}
 888
 889// AddL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 890func (hdb *HistoryDB) AddL2Txs(l2txs []common.L2Tx) error {
 891	return tracerr.Wrap(hdb.addL2Txs(hdb.db, l2txs))
 892}
 893
 894// addL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 895func (hdb *HistoryDB) addL2Txs(d meddler.DB, l2txs []common.L2Tx) error {
 896	txs := []txWrite{}
 897	for i := 0; i < len(l2txs); i++ {
 898		f := new(big.Float).SetInt(l2txs[i].Amount)
 899		amountFloat, _ := f.Float64()
 900		txs = append(txs, txWrite{
 901			// Generic
 902			IsL1:             false,
 903			TxID:             l2txs[i].TxID,
 904			Type:             l2txs[i].Type,
 905			Position:         l2txs[i].Position,
 906			FromIdx:          &l2txs[i].FromIdx,
 907			EffectiveFromIdx: &l2txs[i].FromIdx,
 908			ToIdx:            l2txs[i].ToIdx,
 909			TokenID:          l2txs[i].TokenID,
 910			Amount:           l2txs[i].Amount,
 911			AmountFloat:      amountFloat,
 912			BatchNum:         &l2txs[i].BatchNum,
 913			EthBlockNum:      l2txs[i].EthBlockNum,
 914			// L2
 915			Fee:   &l2txs[i].Fee,
 916			Nonce: &l2txs[i].Nonce,
 917		})
 918	}
 919	return tracerr.Wrap(hdb.addTxs(d, txs))
 920}
 921
 922func (hdb *HistoryDB) addTxs(d meddler.DB, txs []txWrite) error {
 923	if len(txs) == 0 {
 924		return nil
 925	}
 926	return tracerr.Wrap(db.BulkInsert(
 927		d,
 928		`INSERT INTO tx (
 929			is_l1,
 930			id,
 931			type,
 932			position,
 933			from_idx,
 934			effective_from_idx,
 935			to_idx,
 936			amount,
 937			amount_f,
 938			token_id,
 939			batch_num,
 940			eth_block_num,
 941			to_forge_l1_txs_num,
 942			user_origin,
 943			from_eth_addr,
 944			from_bjj,
 945			deposit_amount,
 946			deposit_amount_f,
 947			fee,
 948			nonce
 949		) VALUES %s;`,
 950		txs[:],
 951	))
 952}
 953
 954// GetHistoryTx returns a tx from the DB given a TxID
 955func (hdb *HistoryDB) GetHistoryTx(txID common.TxID) (*TxAPI, error) {
 956	// Warning: amount_success and deposit_amount_success have true as default for
 957	// performance reasons. The expected default value is false (when txs are unforged)
 958	// this case is handled at the function func (tx TxAPI) MarshalJSON() ([]byte, error)
 959	tx := &TxAPI{}
 960	err := meddler.QueryRow(
 961		hdb.db, tx, `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 962		hez_idx(tx.effective_from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 963		hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 964		tx.amount, tx.amount_success, tx.token_id, tx.amount_usd, 
 965		tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 966		tx.deposit_amount, tx.deposit_amount_usd, tx.deposit_amount_success, tx.fee, tx.fee_usd, tx.nonce,
 967		token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 968		token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 969		token.usd_update, block.timestamp
 970		FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 971		INNER JOIN block ON tx.eth_block_num = block.eth_block_num 
 972		WHERE tx.id = $1;`, txID,
 973	)
 974	return tx, tracerr.Wrap(err)
 975}
 976
 977// GetHistoryTxs returns a list of txs from the DB using the HistoryTx struct
 978// and pagination info
 979func (hdb *HistoryDB) GetHistoryTxs(
 980	ethAddr *ethCommon.Address, bjj *babyjub.PublicKeyComp,
 981	tokenID *common.TokenID, idx *common.Idx, batchNum *uint, txType *common.TxType,
 982	fromItem, limit *uint, order string,
 983) ([]TxAPI, uint64, error) {
 984	// Warning: amount_success and deposit_amount_success have true as default for
 985	// performance reasons. The expected default value is false (when txs are unforged)
 986	// this case is handled at the function func (tx TxAPI) MarshalJSON() ([]byte, error)
 987	if ethAddr != nil && bjj != nil {
 988		return nil, 0, tracerr.Wrap(errors.New("ethAddr and bjj are incompatible"))
 989	}
 990	var query string
 991	var args []interface{}
 992	queryStr := `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 993	hez_idx(tx.effective_from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 994	hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 995	tx.amount, tx.amount_success, tx.token_id, tx.amount_usd, 
 996	tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 997	tx.deposit_amount, tx.deposit_amount_usd, tx.deposit_amount_success, tx.fee, tx.fee_usd, tx.nonce,
 998	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 999	token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
1000	token.usd_update, block.timestamp, count(*) OVER() AS total_items 
1001	FROM tx INNER JOIN token ON tx.token_id = token.token_id 
1002	INNER JOIN block ON tx.eth_block_num = block.eth_block_num `
1003	// Apply filters
1004	nextIsAnd := false
1005	// ethAddr filter
1006	if ethAddr != nil {
1007		queryStr += "WHERE (tx.from_eth_addr = ? OR tx.to_eth_addr = ?) "
1008		nextIsAnd = true
1009		args = append(args, ethAddr, ethAddr)
1010	} else if bjj != nil { // bjj filter
1011		queryStr += "WHERE (tx.from_bjj = ? OR tx.to_bjj = ?) "
1012		nextIsAnd = true
1013		args = append(args, bjj, bjj)
1014	}
1015	// tokenID filter
1016	if tokenID != nil {
1017		if nextIsAnd {
1018			queryStr += "AND "
1019		} else {
1020			queryStr += "WHERE "
1021		}
1022		queryStr += "tx.token_id = ? "
1023		args = append(args, tokenID)
1024		nextIsAnd = true
1025	}
1026	// idx filter
1027	if idx != nil {
1028		if nextIsAnd {
1029			queryStr += "AND "
1030		} else {
1031			queryStr += "WHERE "
1032		}
1033		queryStr += "(tx.effective_from_idx = ? OR tx.to_idx = ?) "
1034		args = append(args, idx, idx)
1035		nextIsAnd = true
1036	}
1037	// batchNum filter
1038	if batchNum != nil {
1039		if nextIsAnd {
1040			queryStr += "AND "
1041		} else {
1042			queryStr += "WHERE "
1043		}
1044		queryStr += "tx.batch_num = ? "
1045		args = append(args, batchNum)
1046		nextIsAnd = true
1047	}
1048	// txType filter
1049	if txType != nil {
1050		if nextIsAnd {
1051			queryStr += "AND "
1052		} else {
1053			queryStr += "WHERE "
1054		}
1055		queryStr += "tx.type = ? "
1056		args = append(args, txType)
1057		nextIsAnd = true
1058	}
1059	if fromItem != nil {
1060		if nextIsAnd {
1061			queryStr += "AND "
1062		} else {
1063			queryStr += "WHERE "
1064		}
1065		if order == OrderAsc {
1066			queryStr += "tx.item_id >= ? "
1067		} else {
1068			queryStr += "tx.item_id <= ? "
1069		}
1070		args = append(args, fromItem)
1071		nextIsAnd = true
1072	}
1073	if nextIsAnd {
1074		queryStr += "AND "
1075	} else {
1076		queryStr += "WHERE "
1077	}
1078	queryStr += "tx.batch_num IS NOT NULL "
1079
1080	// pagination
1081	queryStr += "ORDER BY tx.item_id "
1082	if order == OrderAsc {
1083		queryStr += " ASC "
1084	} else {
1085		queryStr += " DESC "
1086	}
1087	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1088	query = hdb.db.Rebind(queryStr)
1089	// log.Debug(query)
1090	txsPtrs := []*TxAPI{}
1091	if err := meddler.QueryAll(hdb.db, &txsPtrs, query, args...); err != nil {
1092		return nil, 0, tracerr.Wrap(err)
1093	}
1094	txs := db.SlicePtrsToSlice(txsPtrs).([]TxAPI)
1095	if len(txs) == 0 {
1096		return txs, 0, nil
1097	}
1098	return txs, txs[0].TotalItems - uint64(len(txs)), nil
1099}
1100
1101// GetAllExits returns all exit from the DB
1102func (hdb *HistoryDB) GetAllExits() ([]common.ExitInfo, error) {
1103	var exits []*common.ExitInfo
1104	err := meddler.QueryAll(
1105		hdb.db, &exits,
1106		`SELECT exit_tree.batch_num, exit_tree.account_idx, exit_tree.merkle_proof,
1107		exit_tree.balance, exit_tree.instant_withdrawn, exit_tree.delayed_withdraw_request,
1108		exit_tree.delayed_withdrawn FROM exit_tree ORDER BY item_id;`,
1109	)
1110	return db.SlicePtrsToSlice(exits).([]common.ExitInfo), tracerr.Wrap(err)
1111}
1112
1113// GetExitAPI returns a exit from the DB
1114func (hdb *HistoryDB) GetExitAPI(batchNum *uint, idx *common.Idx) (*ExitAPI, error) {
1115	exit := &ExitAPI{}
1116	err := meddler.QueryRow(
1117		hdb.db, exit, `SELECT exit_tree.item_id, exit_tree.batch_num,
1118		hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1119		account.bjj, account.eth_addr,
1120		exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1121		exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1122		token.token_id, token.item_id AS token_item_id, 
1123		token.eth_block_num AS token_block, token.eth_addr AS token_eth_addr, token.name, token.symbol, 
1124		token.decimals, token.usd, token.usd_update
1125		FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1126		INNER JOIN token ON account.token_id = token.token_id 
1127		WHERE exit_tree.batch_num = $1 AND exit_tree.account_idx = $2;`, batchNum, idx,
1128	)
1129	return exit, tracerr.Wrap(err)
1130}
1131
1132// GetExitsAPI returns a list of exits from the DB and pagination info
1133func (hdb *HistoryDB) GetExitsAPI(
1134	ethAddr *ethCommon.Address, bjj *babyjub.PublicKeyComp, tokenID *common.TokenID,
1135	idx *common.Idx, batchNum *uint, onlyPendingWithdraws *bool,
1136	fromItem, limit *uint, order string,
1137) ([]ExitAPI, uint64, error) {
1138	if ethAddr != nil && bjj != nil {
1139		return nil, 0, tracerr.Wrap(errors.New("ethAddr and bjj are incompatible"))
1140	}
1141	var query string
1142	var args []interface{}
1143	queryStr := `SELECT exit_tree.item_id, exit_tree.batch_num,
1144	hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1145	account.bjj, account.eth_addr,
1146	exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1147	exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1148	token.token_id, token.item_id AS token_item_id,
1149	token.eth_block_num AS token_block, token.eth_addr AS token_eth_addr, token.name, token.symbol,
1150	token.decimals, token.usd, token.usd_update, COUNT(*) OVER() AS total_items
1151	FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1152	INNER JOIN token ON account.token_id = token.token_id `
1153	// Apply filters
1154	nextIsAnd := false
1155	// ethAddr filter
1156	if ethAddr != nil {
1157		queryStr += "WHERE account.eth_addr = ? "
1158		nextIsAnd = true
1159		args = append(args, ethAddr)
1160	} else if bjj != nil { // bjj filter
1161		queryStr += "WHERE account.bjj = ? "
1162		nextIsAnd = true
1163		args = append(args, bjj)
1164	}
1165	// tokenID filter
1166	if tokenID != nil {
1167		if nextIsAnd {
1168			queryStr += "AND "
1169		} else {
1170			queryStr += "WHERE "
1171		}
1172		queryStr += "account.token_id = ? "
1173		args = append(args, tokenID)
1174		nextIsAnd = true
1175	}
1176	// idx filter
1177	if idx != nil {
1178		if nextIsAnd {
1179			queryStr += "AND "
1180		} else {
1181			queryStr += "WHERE "
1182		}
1183		queryStr += "exit_tree.account_idx = ? "
1184		args = append(args, idx)
1185		nextIsAnd = true
1186	}
1187	// batchNum filter
1188	if batchNum != nil {
1189		if nextIsAnd {
1190			queryStr += "AND "
1191		} else {
1192			queryStr += "WHERE "
1193		}
1194		queryStr += "exit_tree.batch_num = ? "
1195		args = append(args, batchNum)
1196		nextIsAnd = true
1197	}
1198	// onlyPendingWithdraws
1199	if onlyPendingWithdraws != nil {
1200		if *onlyPendingWithdraws {
1201			if nextIsAnd {
1202				queryStr += "AND "
1203			} else {
1204				queryStr += "WHERE "
1205			}
1206			queryStr += "(exit_tree.instant_withdrawn IS NULL AND exit_tree.delayed_withdrawn IS NULL) "
1207			nextIsAnd = true
1208		}
1209	}
1210	if fromItem != nil {
1211		if nextIsAnd {
1212			queryStr += "AND "
1213		} else {
1214			queryStr += "WHERE "
1215		}
1216		if order == OrderAsc {
1217			queryStr += "exit_tree.item_id >= ? "
1218		} else {
1219			queryStr += "exit_tree.item_id <= ? "
1220		}
1221		args = append(args, fromItem)
1222		// nextIsAnd = true
1223	}
1224	// pagination
1225	queryStr += "ORDER BY exit_tree.item_id "
1226	if order == OrderAsc {
1227		queryStr += " ASC "
1228	} else {
1229		queryStr += " DESC "
1230	}
1231	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1232	query = hdb.db.Rebind(queryStr)
1233	// log.Debug(query)
1234	exits := []*ExitAPI{}
1235	if err := meddler.QueryAll(hdb.db, &exits, query, args...); err != nil {
1236		return nil, 0, tracerr.Wrap(err)
1237	}
1238	if len(exits) == 0 {
1239		return []ExitAPI{}, 0, nil
1240	}
1241	return db.SlicePtrsToSlice(exits).([]ExitAPI), exits[0].TotalItems - uint64(len(exits)), nil
1242}
1243
1244// GetAllL1UserTxs returns all L1UserTxs from the DB
1245func (hdb *HistoryDB) GetAllL1UserTxs() ([]common.L1Tx, error) {
1246	var txs []*common.L1Tx
1247	err := meddler.QueryAll(
1248		hdb.db, &txs, // Note that '\x' gets parsed as a big.Int with value = 0
1249		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1250		tx.from_idx, tx.effective_from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1251		tx.amount, (CASE WHEN tx.batch_num IS NULL THEN NULL WHEN tx.amount_success THEN tx.amount ELSE '\x' END) AS effective_amount,
1252		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,
1253		tx.eth_block_num, tx.type, tx.batch_num
1254		FROM tx WHERE is_l1 = TRUE AND user_origin = TRUE ORDER BY item_id;`,
1255	)
1256	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
1257}
1258
1259// GetAllL1CoordinatorTxs returns all L1CoordinatorTxs from the DB
1260func (hdb *HistoryDB) GetAllL1CoordinatorTxs() ([]common.L1Tx, error) {
1261	var txs []*common.L1Tx
1262	// Since the query specifies that only coordinator txs are returned, it's safe to assume
1263	// that returned txs will always have effective amounts
1264	err := meddler.QueryAll(
1265		hdb.db, &txs,
1266		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1267		tx.from_idx, tx.effective_from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1268		tx.amount, tx.amount AS effective_amount,
1269		tx.deposit_amount, tx.deposit_amount AS effective_deposit_amount,
1270		tx.eth_block_num, tx.type, tx.batch_num
1271		FROM tx WHERE is_l1 = TRUE AND user_origin = FALSE ORDER BY item_id;`,
1272	)
1273	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
1274}
1275
1276// GetAllL2Txs returns all L2Txs from the DB
1277func (hdb *HistoryDB) GetAllL2Txs() ([]common.L2Tx, error) {
1278	var txs []*common.L2Tx
1279	err := meddler.QueryAll(
1280		hdb.db, &txs,
1281		`SELECT tx.id, tx.batch_num, tx.position,
1282		tx.from_idx, tx.to_idx, tx.amount, tx.token_id,
1283		tx.fee, tx.nonce, tx.type, tx.eth_block_num
1284		FROM tx WHERE is_l1 = FALSE ORDER BY item_id;`,
1285	)
1286	return db.SlicePtrsToSlice(txs).([]common.L2Tx), tracerr.Wrap(err)
1287}
1288
1289// GetUnforgedL1UserTxs gets L1 User Txs to be forged in the L1Batch with toForgeL1TxsNum.
1290func (hdb *HistoryDB) GetUnforgedL1UserTxs(toForgeL1TxsNum int64) ([]common.L1Tx, error) {
1291	var txs []*common.L1Tx
1292	err := meddler.QueryAll(
1293		hdb.db, &txs, // only L1 user txs can have batch_num set to null
1294		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1295		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1296		tx.amount, NULL AS effective_amount,
1297		tx.deposit_amount, NULL AS effective_deposit_amount,
1298		tx.eth_block_num, tx.type, tx.batch_num
1299		FROM tx WHERE batch_num IS NULL AND to_forge_l1_txs_num = $1
1300		ORDER BY position;`,
1301		toForgeL1TxsNum,
1302	)
1303	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
1304}
1305
1306// TODO: Think about chaning all the queries that return a last value, to queries that return the next valid value.
1307
1308// GetLastTxsPosition for a given to_forge_l1_txs_num
1309func (hdb *HistoryDB) GetLastTxsPosition(toForgeL1TxsNum int64) (int, error) {
1310	row := hdb.db.QueryRow(
1311		"SELECT position FROM tx WHERE to_forge_l1_txs_num = $1 ORDER BY position DESC;",
1312		toForgeL1TxsNum,
1313	)
1314	var lastL1TxsPosition int
1315	return lastL1TxsPosition, tracerr.Wrap(row.Scan(&lastL1TxsPosition))
1316}
1317
1318// GetSCVars returns the rollup, auction and wdelayer smart contracts variables at their last update.
1319func (hdb *HistoryDB) GetSCVars() (*common.RollupVariables, *common.AuctionVariables,
1320	*common.WDelayerVariables, error) {
1321	var rollup common.RollupVariables
1322	var auction common.AuctionVariables
1323	var wDelayer common.WDelayerVariables
1324	if err := meddler.QueryRow(hdb.db, &rollup,
1325		"SELECT * FROM rollup_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1326		return nil, nil, nil, tracerr.Wrap(err)
1327	}
1328	if err := meddler.QueryRow(hdb.db, &auction,
1329		"SELECT * FROM auction_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1330		return nil, nil, nil, tracerr.Wrap(err)
1331	}
1332	if err := meddler.QueryRow(hdb.db, &wDelayer,
1333		"SELECT * FROM wdelayer_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1334		return nil, nil, nil, tracerr.Wrap(err)
1335	}
1336	return &rollup, &auction, &wDelayer, nil
1337}
1338
1339func (hdb *HistoryDB) setRollupVars(d meddler.DB, rollup *common.RollupVariables) error {
1340	return tracerr.Wrap(meddler.Insert(d, "rollup_vars", rollup))
1341}
1342
1343func (hdb *HistoryDB) setAuctionVars(d meddler.DB, auction *common.AuctionVariables) error {
1344	return tracerr.Wrap(meddler.Insert(d, "auction_vars", auction))
1345}
1346
1347func (hdb *HistoryDB) setWDelayerVars(d meddler.DB, wDelayer *common.WDelayerVariables) error {
1348	return tracerr.Wrap(meddler.Insert(d, "wdelayer_vars", wDelayer))
1349}
1350
1351func (hdb *HistoryDB) addBucketUpdates(d meddler.DB, bucketUpdates []common.BucketUpdate) error {
1352	if len(bucketUpdates) == 0 {
1353		return nil
1354	}
1355	return tracerr.Wrap(db.BulkInsert(
1356		d,
1357		`INSERT INTO bucket_update (
1358		 	eth_block_num,
1359		 	num_bucket,
1360		 	block_stamp,
1361		 	withdrawals
1362		) VALUES %s;`,
1363		bucketUpdates[:],
1364	))
1365}
1366
1367// AddBucketUpdatesTest allows call to unexported method
1368// only for internal testing purposes
1369func (hdb *HistoryDB) AddBucketUpdatesTest(d meddler.DB, bucketUpdates []common.BucketUpdate) error {
1370	return hdb.addBucketUpdates(d, bucketUpdates)
1371}
1372
1373// GetAllBucketUpdates retrieves all the bucket updates
1374func (hdb *HistoryDB) GetAllBucketUpdates() ([]common.BucketUpdate, error) {
1375	var bucketUpdates []*common.BucketUpdate
1376	err := meddler.QueryAll(
1377		hdb.db, &bucketUpdates,
1378		`SELECT eth_block_num, num_bucket, block_stamp, withdrawals  
1379		FROM bucket_update ORDER BY item_id;`,
1380	)
1381	return db.SlicePtrsToSlice(bucketUpdates).([]common.BucketUpdate), tracerr.Wrap(err)
1382}
1383
1384// GetBucketUpdates retrieves latest values for each bucket
1385func (hdb *HistoryDB) GetBucketUpdates() ([]BucketUpdateAPI, error) {
1386	var bucketUpdates []*BucketUpdateAPI
1387	err := meddler.QueryAll(
1388		hdb.db, &bucketUpdates,
1389		`SELECT num_bucket, withdrawals FROM bucket_update 
1390		WHERE item_id in(SELECT max(item_id) FROM bucket_update 
1391		group by num_bucket) 
1392		ORDER BY num_bucket ASC;`,
1393	)
1394	return db.SlicePtrsToSlice(bucketUpdates).([]BucketUpdateAPI), tracerr.Wrap(err)
1395}
1396
1397func (hdb *HistoryDB) addTokenExchanges(d meddler.DB, tokenExchanges []common.TokenExchange) error {
1398	if len(tokenExchanges) == 0 {
1399		return nil
1400	}
1401	return tracerr.Wrap(db.BulkInsert(
1402		d,
1403		`INSERT INTO token_exchange (
1404			eth_block_num,
1405    			eth_addr,
1406    			value_usd
1407		) VALUES %s;`,
1408		tokenExchanges[:],
1409	))
1410}
1411
1412// GetAllTokenExchanges retrieves all the token exchanges
1413func (hdb *HistoryDB) GetAllTokenExchanges() ([]common.TokenExchange, error) {
1414	var tokenExchanges []*common.TokenExchange
1415	err := meddler.QueryAll(
1416		hdb.db, &tokenExchanges,
1417		"SELECT eth_block_num, eth_addr, value_usd FROM token_exchange ORDER BY item_id;",
1418	)
1419	return db.SlicePtrsToSlice(tokenExchanges).([]common.TokenExchange), tracerr.Wrap(err)
1420}
1421
1422func (hdb *HistoryDB) addEscapeHatchWithdrawals(d meddler.DB,
1423	escapeHatchWithdrawals []common.WDelayerEscapeHatchWithdrawal) error {
1424	if len(escapeHatchWithdrawals) == 0 {
1425		return nil
1426	}
1427	return tracerr.Wrap(db.BulkInsert(
1428		d,
1429		`INSERT INTO escape_hatch_withdrawal (
1430			eth_block_num,
1431			who_addr,
1432			to_addr,
1433			token_addr,
1434			amount
1435		) VALUES %s;`,
1436		escapeHatchWithdrawals[:],
1437	))
1438}
1439
1440// GetAllEscapeHatchWithdrawals retrieves all the escape hatch withdrawals
1441func (hdb *HistoryDB) GetAllEscapeHatchWithdrawals() ([]common.WDelayerEscapeHatchWithdrawal, error) {
1442	var escapeHatchWithdrawals []*common.WDelayerEscapeHatchWithdrawal
1443	err := meddler.QueryAll(
1444		hdb.db, &escapeHatchWithdrawals,
1445		"SELECT eth_block_num, who_addr, to_addr, token_addr, amount FROM escape_hatch_withdrawal ORDER BY item_id;",
1446	)
1447	return db.SlicePtrsToSlice(escapeHatchWithdrawals).([]common.WDelayerEscapeHatchWithdrawal),
1448		tracerr.Wrap(err)
1449}
1450
1451// SetInitialSCVars sets the initial state of rollup, auction, wdelayer smart
1452// contract variables.  This initial state is stored linked to block 0, which
1453// always exist in the DB and is used to store initialization data that always
1454// exist in the smart contracts.
1455func (hdb *HistoryDB) SetInitialSCVars(rollup *common.RollupVariables,
1456	auction *common.AuctionVariables, wDelayer *common.WDelayerVariables) error {
1457	txn, err := hdb.db.Beginx()
1458	if err != nil {
1459		return tracerr.Wrap(err)
1460	}
1461	defer func() {
1462		if err != nil {
1463			db.Rollback(txn)
1464		}
1465	}()
1466	// Force EthBlockNum to be 0 because it's the block used to link data
1467	// that belongs to the creation of the smart contracts
1468	rollup.EthBlockNum = 0
1469	auction.EthBlockNum = 0
1470	wDelayer.EthBlockNum = 0
1471	auction.DefaultSlotSetBidSlotNum = 0
1472	if err := hdb.setRollupVars(txn, rollup); err != nil {
1473		return tracerr.Wrap(err)
1474	}
1475	if err := hdb.setAuctionVars(txn, auction); err != nil {
1476		return tracerr.Wrap(err)
1477	}
1478	if err := hdb.setWDelayerVars(txn, wDelayer); err != nil {
1479		return tracerr.Wrap(err)
1480	}
1481
1482	return tracerr.Wrap(txn.Commit())
1483}
1484
1485// setExtraInfoForgedL1UserTxs sets the EffectiveAmount, EffectiveDepositAmount
1486// and EffectiveFromIdx of the given l1UserTxs (with an UPDATE)
1487func (hdb *HistoryDB) setExtraInfoForgedL1UserTxs(d sqlx.Ext, txs []common.L1Tx) error {
1488	if len(txs) == 0 {
1489		return nil
1490	}
1491	// Effective amounts are stored as success flags in the DB, with true value by default
1492	// to reduce the amount of updates. Therefore, only amounts that became uneffective should be
1493	// updated to become false.  At the same time, all the txs that contain
1494	// accounts (FromIdx == 0) are updated to set the EffectiveFromIdx.
1495	type txUpdate struct {
1496		ID                   common.TxID `db:"id"`
1497		AmountSuccess        bool        `db:"amount_success"`
1498		DepositAmountSuccess bool        `db:"deposit_amount_success"`
1499		EffectiveFromIdx     common.Idx  `db:"effective_from_idx"`
1500	}
1501	txUpdates := []txUpdate{}
1502	equal := func(a *big.Int, b *big.Int) bool {
1503		return a.Cmp(b) == 0
1504	}
1505	for i := range txs {
1506		amountSuccess := equal(txs[i].Amount, txs[i].EffectiveAmount)
1507		depositAmountSuccess := equal(txs[i].DepositAmount, txs[i].EffectiveDepositAmount)
1508		if !amountSuccess || !depositAmountSuccess || txs[i].FromIdx == 0 {
1509			txUpdates = append(txUpdates, txUpdate{
1510				ID:                   txs[i].TxID,
1511				AmountSuccess:        amountSuccess,
1512				DepositAmountSuccess: depositAmountSuccess,
1513				EffectiveFromIdx:     txs[i].EffectiveFromIdx,
1514			})
1515		}
1516	}
1517	const query string = `
1518		UPDATE tx SET
1519			amount_success = tx_update.amount_success,
1520			deposit_amount_success = tx_update.deposit_amount_success,
1521			effective_from_idx = tx_update.effective_from_idx
1522		FROM (VALUES
1523			(NULL::::BYTEA, NULL::::BOOL, NULL::::BOOL, NULL::::BIGINT),
1524			(:id, :amount_success, :deposit_amount_success, :effective_from_idx)
1525		) as tx_update (id, amount_success, deposit_amount_success, effective_from_idx)
1526		WHERE tx.id = tx_update.id;
1527	`
1528	if len(txUpdates) > 0 {
1529		if _, err := sqlx.NamedExec(d, query, txUpdates); err != nil {
1530			return tracerr.Wrap(err)
1531		}
1532	}
1533	return nil
1534}
1535
1536// AddBlockSCData stores all the information of a block retrieved by the
1537// Synchronizer.  Blocks should be inserted in order, leaving no gaps because
1538// the pagination system of the API/DB depends on this.  Within blocks, all
1539// items should also be in the correct order (Accounts, Tokens, Txs, etc.)
1540func (hdb *HistoryDB) AddBlockSCData(blockData *common.BlockData) (err error) {
1541	txn, err := hdb.db.Beginx()
1542	if err != nil {
1543		return tracerr.Wrap(err)
1544	}
1545	defer func() {
1546		if err != nil {
1547			db.Rollback(txn)
1548		}
1549	}()
1550
1551	// Add block
1552	if err := hdb.addBlock(txn, &blockData.Block); err != nil {
1553		return tracerr.Wrap(err)
1554	}
1555
1556	// Add Coordinators
1557	if err := hdb.addCoordinators(txn, blockData.Auction.Coordinators); err != nil {
1558		return tracerr.Wrap(err)
1559	}
1560
1561	// Add Bids
1562	if err := hdb.addBids(txn, blockData.Auction.Bids); err != nil {
1563		return tracerr.Wrap(err)
1564	}
1565
1566	// Add Tokens
1567	if err := hdb.addTokens(txn, blockData.Rollup.AddedTokens); err != nil {
1568		return tracerr.Wrap(err)
1569	}
1570
1571	// Prepare user L1 txs to be added.
1572	// They must be added before the batch that will forge them (which can be in the same block)
1573	// and after the account that will be sent to (also can be in the same block).
1574	// Note: insert order is not relevant since item_id will be updated by a DB trigger when
1575	// the batch that forges those txs is inserted
1576	userL1s := make(map[common.BatchNum][]common.L1Tx)
1577	for i := range blockData.Rollup.L1UserTxs {
1578		batchThatForgesIsInTheBlock := false
1579		for _, batch := range blockData.Rollup.Batches {
1580			if batch.Batch.ForgeL1TxsNum != nil &&
1581				*batch.Batch.ForgeL1TxsNum == *blockData.Rollup.L1UserTxs[i].ToForgeL1TxsNum {
1582				// Tx is forged in this block. It's guaranteed that:
1583				// * the first batch of the block won't forge user L1 txs that have been added in this block
1584				// * batch nums are sequential therefore it's safe to add the tx at batch.BatchNum -1
1585				batchThatForgesIsInTheBlock = true
1586				addAtBatchNum := batch.Batch.BatchNum - 1
1587				userL1s[addAtBatchNum] = append(userL1s[addAtBatchNum], blockData.Rollup.L1UserTxs[i])
1588				break
1589			}
1590		}
1591		if !batchThatForgesIsInTheBlock {
1592			// User artificial batchNum 0 to add txs that are not forge in this block
1593			// after all the accounts of the block have been added
1594			userL1s[0] = append(userL1s[0], blockData.Rollup.L1UserTxs[i])
1595		}
1596	}
1597
1598	// Add Batches
1599	for i := range blockData.Rollup.Batches {
1600		batch := &blockData.Rollup.Batches[i]
1601
1602		// Add Batch: this will trigger an update on the DB
1603		// that will set the batch num of forged L1 txs in this batch
1604		if err = hdb.addBatch(txn, &batch.Batch); err != nil {
1605			return tracerr.Wrap(err)
1606		}
1607
1608		// Add accounts
1609		if err := hdb.addAccounts(txn, batch.CreatedAccounts); err != nil {
1610			return tracerr.Wrap(err)
1611		}
1612
1613		// Set the EffectiveAmount and EffectiveDepositAmount of all the
1614		// L1UserTxs that have been forged in this batch
1615		if err = hdb.setExtraInfoForgedL1UserTxs(txn, batch.L1UserTxs); err != nil {
1616			return tracerr.Wrap(err)
1617		}
1618
1619		// Add forged l1 coordinator Txs
1620		if err := hdb.addL1Txs(txn, batch.L1CoordinatorTxs); err != nil {
1621			return tracerr.Wrap(err)
1622		}
1623
1624		// Add l2 Txs
1625		if err := hdb.addL2Txs(txn, batch.L2Txs); err != nil {
1626			return tracerr.Wrap(err)
1627		}
1628
1629		// Add user L1 txs that will be forged in next batch
1630		if userlL1s, ok := userL1s[batch.Batch.BatchNum]; ok {
1631			if err := hdb.addL1Txs(txn, userlL1s); err != nil {
1632				return tracerr.Wrap(err)
1633			}
1634		}
1635
1636		// Add exit tree
1637		if err := hdb.addExitTree(txn, batch.ExitTree); err != nil {
1638			return tracerr.Wrap(err)
1639		}
1640	}
1641	// Add user L1 txs that won't be forged in this block
1642	if userL1sNotForgedInThisBlock, ok := userL1s[0]; ok {
1643		if err := hdb.addL1Txs(txn, userL1sNotForgedInThisBlock); err != nil {
1644			return tracerr.Wrap(err)
1645		}
1646	}
1647
1648	// Set SC Vars if there was an update
1649	if blockData.Rollup.Vars != nil {
1650		if err := hdb.setRollupVars(txn, blockData.Rollup.Vars); err != nil {
1651			return tracerr.Wrap(err)
1652		}
1653	}
1654	if blockData.Auction.Vars != nil {
1655		if err := hdb.setAuctionVars(txn, blockData.Auction.Vars); err != nil {
1656			return tracerr.Wrap(err)
1657		}
1658	}
1659	if blockData.WDelayer.Vars != nil {
1660		if err := hdb.setWDelayerVars(txn, blockData.WDelayer.Vars); err != nil {
1661			return tracerr.Wrap(err)
1662		}
1663	}
1664
1665	// Update withdrawals in exit tree table
1666	if err := hdb.updateExitTree(txn, blockData.Block.Num,
1667		blockData.Rollup.Withdrawals, blockData.WDelayer.Withdrawals); err != nil {
1668		return tracerr.Wrap(err)
1669	}
1670
1671	// Add Escape Hatch Withdrawals
1672	if err := hdb.addEscapeHatchWithdrawals(txn,
1673		blockData.WDelayer.EscapeHatchWithdrawals); err != nil {
1674		return tracerr.Wrap(err)
1675	}
1676
1677	// Add Buckets withdrawals updates
1678	if err := hdb.addBucketUpdates(txn, blockData.Rollup.UpdateBucketWithdraw); err != nil {
1679		return tracerr.Wrap(err)
1680	}
1681
1682	// Add Token exchange updates
1683	if err := hdb.addTokenExchanges(txn, blockData.Rollup.TokenExchanges); err != nil {
1684		return tracerr.Wrap(err)
1685	}
1686
1687	return tracerr.Wrap(txn.Commit())
1688}
1689
1690// GetCoordinatorAPI returns a coordinator by its bidderAddr
1691func (hdb *HistoryDB) GetCoordinatorAPI(bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
1692	coordinator := &CoordinatorAPI{}
1693	err := meddler.QueryRow(
1694		hdb.db, coordinator,
1695		"SELECT * FROM coordinator WHERE bidder_addr = $1 ORDER BY item_id DESC LIMIT 1;",
1696		bidderAddr,
1697	)
1698	return coordinator, tracerr.Wrap(err)
1699}
1700
1701// GetCoordinatorsAPI returns a list of coordinators from the DB and pagination info
1702func (hdb *HistoryDB) GetCoordinatorsAPI(
1703	bidderAddr, forgerAddr *ethCommon.Address,
1704	fromItem, limit *uint, order string,
1705) ([]CoordinatorAPI, uint64, error) {
1706	var query string
1707	var args []interface{}
1708	queryStr := `SELECT coordinator.*, COUNT(*) OVER() AS total_items
1709	FROM coordinator INNER JOIN (
1710		SELECT MAX(item_id) AS item_id FROM coordinator
1711		GROUP BY bidder_addr
1712	) c ON coordinator.item_id = c.item_id `
1713	// Apply filters
1714	nextIsAnd := false
1715	if bidderAddr != nil {
1716		queryStr += "WHERE bidder_addr = ? "
1717		nextIsAnd = true
1718		args = append(args, bidderAddr)
1719	}
1720	if forgerAddr != nil {
1721		if nextIsAnd {
1722			queryStr += "AND "
1723		} else {
1724			queryStr += "WHERE "
1725		}
1726		queryStr += "forger_addr = ? "
1727		nextIsAnd = true
1728		args = append(args, forgerAddr)
1729	}
1730	if fromItem != nil {
1731		if nextIsAnd {
1732			queryStr += "AND "
1733		} else {
1734			queryStr += "WHERE "
1735		}
1736		if order == OrderAsc {
1737			queryStr += "coordinator.item_id >= ? "
1738		} else {
1739			queryStr += "coordinator.item_id <= ? "
1740		}
1741		args = append(args, fromItem)
1742	}
1743	// pagination
1744	queryStr += "ORDER BY coordinator.item_id "
1745	if order == OrderAsc {
1746		queryStr += " ASC "
1747	} else {
1748		queryStr += " DESC "
1749	}
1750	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1751	query = hdb.db.Rebind(queryStr)
1752
1753	coordinators := []*CoordinatorAPI{}
1754	if err := meddler.QueryAll(hdb.db, &coordinators, query, args...); err != nil {
1755		return nil, 0, tracerr.Wrap(err)
1756	}
1757	if len(coordinators) == 0 {
1758		return []CoordinatorAPI{}, 0, nil
1759	}
1760	return db.SlicePtrsToSlice(coordinators).([]CoordinatorAPI),
1761		coordinators[0].TotalItems - uint64(len(coordinators)), nil
1762}
1763
1764// AddAuctionVars insert auction vars into the DB
1765func (hdb *HistoryDB) AddAuctionVars(auctionVars *common.AuctionVariables) error {
1766	return tracerr.Wrap(meddler.Insert(hdb.db, "auction_vars", auctionVars))
1767}
1768
1769// GetAuctionVars returns auction variables
1770func (hdb *HistoryDB) GetAuctionVars() (*common.AuctionVariables, error) {
1771	auctionVars := &common.AuctionVariables{}
1772	err := meddler.QueryRow(
1773		hdb.db, auctionVars, `SELECT * FROM auction_vars;`,
1774	)
1775	return auctionVars, tracerr.Wrap(err)
1776}
1777
1778// GetAuctionVarsUntilSetSlotNum returns all the updates of the auction vars
1779// from the last entry in which DefaultSlotSetBidSlotNum <= slotNum
1780func (hdb *HistoryDB) GetAuctionVarsUntilSetSlotNum(slotNum int64, maxItems int) ([]MinBidInfo, error) {
1781	auctionVars := []*MinBidInfo{}
1782	query := `
1783		SELECT DISTINCT default_slot_set_bid, default_slot_set_bid_slot_num FROM auction_vars
1784		WHERE default_slot_set_bid_slot_num < $1
1785		ORDER BY default_slot_set_bid_slot_num DESC
1786		LIMIT $2;
1787	`
1788	err := meddler.QueryAll(hdb.db, &auctionVars, query, slotNum, maxItems)
1789	if err != nil {
1790		return nil, tracerr.Wrap(err)
1791	}
1792	return db.SlicePtrsToSlice(auctionVars).([]MinBidInfo), nil
1793}
1794
1795// GetAccountAPI returns an account by its index
1796func (hdb *HistoryDB) GetAccountAPI(idx common.Idx) (*AccountAPI, error) {
1797	account := &AccountAPI{}
1798	err := meddler.QueryRow(hdb.db, account, `SELECT account.item_id, hez_idx(account.idx, 
1799	token.symbol) as idx, account.batch_num, account.bjj, account.eth_addr,
1800	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1801	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update 
1802	FROM account INNER JOIN token ON account.token_id = token.token_id WHERE idx = $1;`, idx)
1803
1804	if err != nil {
1805		return nil, tracerr.Wrap(err)
1806	}
1807
1808	return account, nil
1809}
1810
1811// GetAccountsAPI returns a list of accounts from the DB and pagination info
1812func (hdb *HistoryDB) GetAccountsAPI(
1813	tokenIDs []common.TokenID, ethAddr *ethCommon.Address,
1814	bjj *babyjub.PublicKeyComp, fromItem, limit *uint, order string,
1815) ([]AccountAPI, uint64, error) {
1816	if ethAddr != nil && bjj != nil {
1817		return nil, 0, tracerr.Wrap(errors.New("ethAddr and bjj are incompatible"))
1818	}
1819	var query string
1820	var args []interface{}
1821	queryStr := `SELECT account.item_id, hez_idx(account.idx, token.symbol) as idx, account.batch_num, 
1822	account.bjj, account.eth_addr, token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1823	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update, 
1824	COUNT(*) OVER() AS total_items
1825	FROM account INNER JOIN token ON account.token_id = token.token_id `
1826	// Apply filters
1827	nextIsAnd := false
1828	// ethAddr filter
1829	if ethAddr != nil {
1830		queryStr += "WHERE account.eth_addr = ? "
1831		nextIsAnd = true
1832		args = append(args, ethAddr)
1833	} else if bjj != nil { // bjj filter
1834		queryStr += "WHERE account.bjj = ? "
1835		nextIsAnd = true
1836		args = append(args, bjj)
1837	}
1838	// tokenID filter
1839	if len(tokenIDs) > 0 {
1840		if nextIsAnd {
1841			queryStr += "AND "
1842		} else {
1843			queryStr += "WHERE "
1844		}
1845		queryStr += "account.token_id IN (?) "
1846		args = append(args, tokenIDs)
1847		nextIsAnd = true
1848	}
1849	if fromItem != nil {
1850		if nextIsAnd {
1851			queryStr += "AND "
1852		} else {
1853			queryStr += "WHERE "
1854		}
1855		if order == OrderAsc {
1856			queryStr += "account.item_id >= ? "
1857		} else {
1858			queryStr += "account.item_id <= ? "
1859		}
1860		args = append(args, fromItem)
1861	}
1862	// pagination
1863	queryStr += "ORDER BY account.item_id "
1864	if order == OrderAsc {
1865		queryStr += " ASC "
1866	} else {
1867		queryStr += " DESC "
1868	}
1869	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1870	query, argsQ, err := sqlx.In(queryStr, args...)
1871	if err != nil {
1872		return nil, 0, tracerr.Wrap(err)
1873	}
1874	query = hdb.db.Rebind(query)
1875
1876	accounts := []*AccountAPI{}
1877	if err := meddler.QueryAll(hdb.db, &accounts, query, argsQ...); err != nil {
1878		return nil, 0, tracerr.Wrap(err)
1879	}
1880	if len(accounts) == 0 {
1881		return []AccountAPI{}, 0, nil
1882	}
1883
1884	return db.SlicePtrsToSlice(accounts).([]AccountAPI),
1885		accounts[0].TotalItems - uint64(len(accounts)), nil
1886}
1887
1888// GetMetrics returns metrics
1889func (hdb *HistoryDB) GetMetrics(lastBatchNum common.BatchNum) (*Metrics, error) {
1890	metricsTotals := &MetricsTotals{}
1891	metrics := &Metrics{}
1892	err := meddler.QueryRow(
1893		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs,
1894		COALESCE (MIN(tx.batch_num), 0) as batch_num, COALESCE (MIN(block.timestamp), 
1895		NOW()) AS min_timestamp, COALESCE (MAX(block.timestamp), NOW()) AS max_timestamp
1896		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1897		WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS';`)
1898	if err != nil {
1899		return nil, tracerr.Wrap(err)
1900	}
1901
1902	seconds := metricsTotals.MaxTimestamp.Sub(metricsTotals.MinTimestamp).Seconds()
1903	// Avoid dividing by 0
1904	if seconds == 0 {
1905		seconds++
1906	}
1907
1908	metrics.TransactionsPerSecond = float64(metricsTotals.TotalTransactions) / seconds
1909
1910	if (lastBatchNum - metricsTotals.FirstBatchNum) > 0 {
1911		metrics.TransactionsPerBatch = float64(metricsTotals.TotalTransactions) /
1912			float64(lastBatchNum-metricsTotals.FirstBatchNum+1)
1913	} else {
1914		metrics.TransactionsPerBatch = float64(0)
1915	}
1916
1917	err = meddler.QueryRow(
1918		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1919		COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
1920		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1921	if err != nil {
1922		return nil, tracerr.Wrap(err)
1923	}
1924	if metricsTotals.TotalBatches > 0 {
1925		metrics.BatchFrequency = seconds / float64(metricsTotals.TotalBatches)
1926	} else {
1927		metrics.BatchFrequency = 0
1928	}
1929	if metricsTotals.TotalTransactions > 0 {
1930		metrics.AvgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1931	} else {
1932		metrics.AvgTransactionFee = 0
1933	}
1934	err = meddler.QueryRow(
1935		hdb.db, metrics,
1936		`SELECT COUNT(*) AS total_bjjs, COUNT(DISTINCT(bjj)) AS total_accounts FROM account;`)
1937	if err != nil {
1938		return nil, tracerr.Wrap(err)
1939	}
1940
1941	return metrics, nil
1942}
1943
1944// GetAvgTxFee returns average transaction fee of the last 1h
1945func (hdb *HistoryDB) GetAvgTxFee() (float64, error) {
1946	metricsTotals := &MetricsTotals{}
1947	err := meddler.QueryRow(
1948		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, 
1949		COALESCE (MIN(tx.batch_num), 0) as batch_num 
1950		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1951		WHERE block.timestamp >= NOW() - INTERVAL '1 HOURS';`)
1952	if err != nil {
1953		return 0, tracerr.Wrap(err)
1954	}
1955	err = meddler.QueryRow(
1956		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1957		COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
1958		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1959	if err != nil {
1960		return 0, tracerr.Wrap(err)
1961	}
1962
1963	var avgTransactionFee float64
1964	if metricsTotals.TotalTransactions > 0 {
1965		avgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1966	} else {
1967		avgTransactionFee = 0
1968	}
1969
1970	return avgTransactionFee, nil
1971}