arnaucube
arnaucube/hermez-nodePublic Self-hosted repository
hermez-node/db/historydb/historydb.go
db/historydb/historydb.goRaw
   1package historydb
   2
   3import (
   4	"database/sql"
   5	"errors"
   6	"fmt"
   7	"math"
   8	"math/big"
   9
  10	ethCommon "github.com/ethereum/go-ethereum/common"
  11	"github.com/hermeznetwork/hermez-node/common"
  12	"github.com/hermeznetwork/hermez-node/db"
  13	"github.com/iden3/go-iden3-crypto/babyjub"
  14	"github.com/jmoiron/sqlx"
  15
  16	//nolint:errcheck // driver for postgres DB
  17	_ "github.com/lib/pq"
  18	"github.com/russross/meddler"
  19)
  20
  21const (
  22	// OrderAsc indicates ascending order when using pagination
  23	OrderAsc = "ASC"
  24	// OrderDesc indicates descending order when using pagination
  25	OrderDesc = "DESC"
  26)
  27
  28// TODO(Edu): Document here how HistoryDB is kept consistent
  29
  30// HistoryDB persist the historic of the rollup
  31type HistoryDB struct {
  32	db *sqlx.DB
  33}
  34
  35// NewHistoryDB initialize the DB
  36func NewHistoryDB(db *sqlx.DB) *HistoryDB {
  37	return &HistoryDB{db: db}
  38}
  39
  40// DB returns a pointer to the L2DB.db. This method should be used only for
  41// internal testing purposes.
  42func (hdb *HistoryDB) DB() *sqlx.DB {
  43	return hdb.db
  44}
  45
  46// AddBlock insert a block into the DB
  47func (hdb *HistoryDB) AddBlock(block *common.Block) error { return hdb.addBlock(hdb.db, block) }
  48func (hdb *HistoryDB) addBlock(d meddler.DB, block *common.Block) error {
  49	return meddler.Insert(d, "block", block)
  50}
  51
  52// AddBlocks inserts blocks into the DB
  53func (hdb *HistoryDB) AddBlocks(blocks []common.Block) error {
  54	return hdb.addBlocks(hdb.db, blocks)
  55}
  56
  57func (hdb *HistoryDB) addBlocks(d meddler.DB, blocks []common.Block) error {
  58	return db.BulkInsert(
  59		d,
  60		`INSERT INTO block (
  61			eth_block_num,
  62			timestamp,
  63			hash
  64		) VALUES %s;`,
  65		blocks[:],
  66	)
  67}
  68
  69// GetBlock retrieve a block from the DB, given a block number
  70func (hdb *HistoryDB) GetBlock(blockNum int64) (*common.Block, error) {
  71	block := &common.Block{}
  72	err := meddler.QueryRow(
  73		hdb.db, block,
  74		"SELECT * FROM block WHERE eth_block_num = $1;", blockNum,
  75	)
  76	return block, err
  77}
  78
  79// GetAllBlocks retrieve all blocks from the DB
  80func (hdb *HistoryDB) GetAllBlocks() ([]common.Block, error) {
  81	var blocks []*common.Block
  82	err := meddler.QueryAll(
  83		hdb.db, &blocks,
  84		"SELECT * FROM block;",
  85	)
  86	return db.SlicePtrsToSlice(blocks).([]common.Block), err
  87}
  88
  89// GetBlocks retrieve blocks from the DB, given a range of block numbers defined by from and to
  90func (hdb *HistoryDB) GetBlocks(from, to int64) ([]common.Block, error) {
  91	var blocks []*common.Block
  92	err := meddler.QueryAll(
  93		hdb.db, &blocks,
  94		"SELECT * FROM block WHERE $1 <= eth_block_num AND eth_block_num < $2;",
  95		from, to,
  96	)
  97	return db.SlicePtrsToSlice(blocks).([]common.Block), err
  98}
  99
 100// GetLastBlock retrieve the block with the highest block number from the DB
 101func (hdb *HistoryDB) GetLastBlock() (*common.Block, error) {
 102	block := &common.Block{}
 103	err := meddler.QueryRow(
 104		hdb.db, block, "SELECT * FROM block ORDER BY eth_block_num DESC LIMIT 1;",
 105	)
 106	return block, err
 107}
 108
 109// AddBatch insert a Batch into the DB
 110func (hdb *HistoryDB) AddBatch(batch *common.Batch) error { return hdb.addBatch(hdb.db, batch) }
 111func (hdb *HistoryDB) addBatch(d meddler.DB, batch *common.Batch) error {
 112	// Calculate total collected fees in USD
 113	// Get IDs of collected tokens for fees
 114	tokenIDs := []common.TokenID{}
 115	for id := range batch.CollectedFees {
 116		tokenIDs = append(tokenIDs, id)
 117	}
 118	// Get USD value of the tokens
 119	type tokenPrice struct {
 120		ID       common.TokenID `meddler:"token_id"`
 121		USD      *float64       `meddler:"usd"`
 122		Decimals int            `meddler:"decimals"`
 123	}
 124	var tokenPrices []*tokenPrice
 125	if len(tokenIDs) > 0 {
 126		query, args, err := sqlx.In(
 127			"SELECT token_id, usd, decimals FROM token WHERE token_id IN (?)",
 128			tokenIDs,
 129		)
 130		if err != nil {
 131			return err
 132		}
 133		query = hdb.db.Rebind(query)
 134		if err := meddler.QueryAll(
 135			hdb.db, &tokenPrices, query, args...,
 136		); err != nil {
 137			return err
 138		}
 139	}
 140	// Calculate total collected
 141	var total float64
 142	for _, tokenPrice := range tokenPrices {
 143		if tokenPrice.USD == nil {
 144			continue
 145		}
 146		f := new(big.Float).SetInt(batch.CollectedFees[tokenPrice.ID])
 147		amount, _ := f.Float64()
 148		total += *tokenPrice.USD * (amount / math.Pow(10, float64(tokenPrice.Decimals))) //nolint decimals have to be ^10
 149	}
 150	batch.TotalFeesUSD = &total
 151	// Insert to DB
 152	return meddler.Insert(d, "batch", batch)
 153}
 154
 155// AddBatches insert Bids into the DB
 156func (hdb *HistoryDB) AddBatches(batches []common.Batch) error {
 157	return hdb.addBatches(hdb.db, batches)
 158}
 159func (hdb *HistoryDB) addBatches(d meddler.DB, batches []common.Batch) error {
 160	for i := 0; i < len(batches); i++ {
 161		if err := hdb.addBatch(d, &batches[i]); err != nil {
 162			return err
 163		}
 164	}
 165	return nil
 166}
 167
 168// GetBatchAPI return the batch with the given batchNum
 169func (hdb *HistoryDB) GetBatchAPI(batchNum common.BatchNum) (*BatchAPI, error) {
 170	batch := &BatchAPI{}
 171	return batch, meddler.QueryRow(
 172		hdb.db, batch,
 173		`SELECT batch.*, block.timestamp, block.hash
 174	 	FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num
 175	 	WHERE batch_num = $1;`, batchNum,
 176	)
 177}
 178
 179// GetBatchesAPI return the batches applying the given filters
 180func (hdb *HistoryDB) GetBatchesAPI(
 181	minBatchNum, maxBatchNum, slotNum *uint,
 182	forgerAddr *ethCommon.Address,
 183	fromItem, limit *uint, order string,
 184) ([]BatchAPI, uint64, error) {
 185	var query string
 186	var args []interface{}
 187	queryStr := `SELECT batch.*, block.timestamp, block.hash,
 188	count(*) OVER() AS total_items
 189	FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num `
 190	// Apply filters
 191	nextIsAnd := false
 192	// minBatchNum filter
 193	if minBatchNum != nil {
 194		if nextIsAnd {
 195			queryStr += "AND "
 196		} else {
 197			queryStr += "WHERE "
 198		}
 199		queryStr += "batch.batch_num > ? "
 200		args = append(args, minBatchNum)
 201		nextIsAnd = true
 202	}
 203	// maxBatchNum filter
 204	if maxBatchNum != nil {
 205		if nextIsAnd {
 206			queryStr += "AND "
 207		} else {
 208			queryStr += "WHERE "
 209		}
 210		queryStr += "batch.batch_num < ? "
 211		args = append(args, maxBatchNum)
 212		nextIsAnd = true
 213	}
 214	// slotNum filter
 215	if slotNum != nil {
 216		if nextIsAnd {
 217			queryStr += "AND "
 218		} else {
 219			queryStr += "WHERE "
 220		}
 221		queryStr += "batch.slot_num = ? "
 222		args = append(args, slotNum)
 223		nextIsAnd = true
 224	}
 225	// forgerAddr filter
 226	if forgerAddr != nil {
 227		if nextIsAnd {
 228			queryStr += "AND "
 229		} else {
 230			queryStr += "WHERE "
 231		}
 232		queryStr += "batch.forger_addr = ? "
 233		args = append(args, forgerAddr)
 234		nextIsAnd = true
 235	}
 236	// pagination
 237	if fromItem != nil {
 238		if nextIsAnd {
 239			queryStr += "AND "
 240		} else {
 241			queryStr += "WHERE "
 242		}
 243		if order == OrderAsc {
 244			queryStr += "batch.item_id >= ? "
 245		} else {
 246			queryStr += "batch.item_id <= ? "
 247		}
 248		args = append(args, fromItem)
 249	}
 250	queryStr += "ORDER BY batch.item_id "
 251	if order == OrderAsc {
 252		queryStr += " ASC "
 253	} else {
 254		queryStr += " DESC "
 255	}
 256	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 257	query = hdb.db.Rebind(queryStr)
 258	// log.Debug(query)
 259	batchPtrs := []*BatchAPI{}
 260	if err := meddler.QueryAll(hdb.db, &batchPtrs, query, args...); err != nil {
 261		return nil, 0, err
 262	}
 263	batches := db.SlicePtrsToSlice(batchPtrs).([]BatchAPI)
 264	if len(batches) == 0 {
 265		return nil, 0, sql.ErrNoRows
 266	}
 267	return batches, batches[0].TotalItems - uint64(len(batches)), nil
 268}
 269
 270// GetAllBatches retrieve all batches from the DB
 271func (hdb *HistoryDB) GetAllBatches() ([]common.Batch, error) {
 272	var batches []*common.Batch
 273	err := meddler.QueryAll(
 274		hdb.db, &batches,
 275		`SELECT batch.batch_num, batch.eth_block_num, batch.forger_addr, batch.fees_collected,
 276		 batch.fee_idxs_coordinator, batch.state_root, batch.num_accounts, batch.last_idx, batch.exit_root,
 277		 batch.forge_l1_txs_num, batch.slot_num, batch.total_fees_usd FROM batch;`,
 278	)
 279	return db.SlicePtrsToSlice(batches).([]common.Batch), err
 280}
 281
 282// GetBatches retrieve batches from the DB, given a range of batch numbers defined by from and to
 283func (hdb *HistoryDB) GetBatches(from, to common.BatchNum) ([]common.Batch, error) {
 284	var batches []*common.Batch
 285	err := meddler.QueryAll(
 286		hdb.db, &batches,
 287		"SELECT * FROM batch WHERE $1 <= batch_num AND batch_num < $2;",
 288		from, to,
 289	)
 290	return db.SlicePtrsToSlice(batches).([]common.Batch), err
 291}
 292
 293// GetBatchesLen retrieve number of batches from the DB, given a slotNum
 294func (hdb *HistoryDB) GetBatchesLen(slotNum int64) (int, error) {
 295	row := hdb.db.QueryRow("SELECT COUNT(*) FROM batch WHERE slot_num = $1;", slotNum)
 296	var batchesLen int
 297	return batchesLen, row.Scan(&batchesLen)
 298}
 299
 300// GetLastBatchNum returns the BatchNum of the latest forged batch
 301func (hdb *HistoryDB) GetLastBatchNum() (common.BatchNum, error) {
 302	row := hdb.db.QueryRow("SELECT batch_num FROM batch ORDER BY batch_num DESC LIMIT 1;")
 303	var batchNum common.BatchNum
 304	return batchNum, row.Scan(&batchNum)
 305}
 306
 307// GetLastL1BatchBlockNum returns the blockNum of the latest forged l1Batch
 308func (hdb *HistoryDB) GetLastL1BatchBlockNum() (int64, error) {
 309	row := hdb.db.QueryRow(`SELECT eth_block_num FROM batch
 310		WHERE forge_l1_txs_num IS NOT NULL
 311		ORDER BY batch_num DESC LIMIT 1;`)
 312	var blockNum int64
 313	return blockNum, row.Scan(&blockNum)
 314}
 315
 316// GetLastL1TxsNum returns the greatest ForgeL1TxsNum in the DB from forged
 317// batches.  If there's no batch in the DB (nil, nil) is returned.
 318func (hdb *HistoryDB) GetLastL1TxsNum() (*int64, error) {
 319	row := hdb.db.QueryRow("SELECT MAX(forge_l1_txs_num) FROM batch;")
 320	lastL1TxsNum := new(int64)
 321	return lastL1TxsNum, row.Scan(&lastL1TxsNum)
 322}
 323
 324// Reorg deletes all the information that was added into the DB after the
 325// lastValidBlock.  If lastValidBlock is negative, all block information is
 326// deleted.
 327func (hdb *HistoryDB) Reorg(lastValidBlock int64) error {
 328	var err error
 329	if lastValidBlock < 0 {
 330		_, err = hdb.db.Exec("DELETE FROM block;")
 331	} else {
 332		_, err = hdb.db.Exec("DELETE FROM block WHERE eth_block_num > $1;", lastValidBlock)
 333	}
 334	return err
 335}
 336
 337// AddBids insert Bids into the DB
 338func (hdb *HistoryDB) AddBids(bids []common.Bid) error { return hdb.addBids(hdb.db, bids) }
 339func (hdb *HistoryDB) addBids(d meddler.DB, bids []common.Bid) error {
 340	// TODO: check the coordinator info
 341	return db.BulkInsert(
 342		d,
 343		"INSERT INTO bid (slot_num, bid_value, eth_block_num, bidder_addr) VALUES %s;",
 344		bids[:],
 345	)
 346}
 347
 348// GetAllBids retrieve all bids from the DB
 349func (hdb *HistoryDB) GetAllBids() ([]common.Bid, error) {
 350	var bids []*common.Bid
 351	err := meddler.QueryAll(
 352		hdb.db, &bids,
 353		`SELECT bid.slot_num, bid.bid_value, bid.eth_block_num, bid.bidder_addr FROM bid;`,
 354	)
 355	return db.SlicePtrsToSlice(bids).([]common.Bid), err
 356}
 357
 358// GetBestBidAPI returns the best bid in specific slot by slotNum
 359func (hdb *HistoryDB) GetBestBidAPI(slotNum *int64) (BidAPI, error) {
 360	bid := &BidAPI{}
 361	err := meddler.QueryRow(
 362		hdb.db, bid, `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url 
 363		FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 364		INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr 
 365		WHERE slot_num = $1 ORDER BY item_id DESC LIMIT 1;`, slotNum,
 366	)
 367	return *bid, err
 368}
 369
 370// GetBestBidCoordinator returns the forger address of the highest bidder in a slot by slotNum
 371func (hdb *HistoryDB) GetBestBidCoordinator(slotNum int64) (*common.BidCoordinator, error) {
 372	bidCoord := &common.BidCoordinator{}
 373	err := meddler.QueryRow(
 374		hdb.db, bidCoord,
 375		`SELECT (
 376			SELECT default_slot_set_bid_slot_num
 377			FROM auction_vars
 378			WHERE default_slot_set_bid_slot_num <= $1
 379			ORDER BY eth_block_num DESC LIMIT 1
 380			),
 381		bid.slot_num, bid.bid_value, bid.bidder_addr,
 382		coordinator.forger_addr, coordinator.url
 383		FROM bid
 384		INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr
 385		WHERE bid.slot_num = $1 ORDER BY bid.item_id DESC LIMIT 1;`,
 386		slotNum)
 387
 388	return bidCoord, err
 389}
 390
 391// GetBestBidsAPI returns the best bid in specific slot by slotNum
 392func (hdb *HistoryDB) GetBestBidsAPI(
 393	minSlotNum, maxSlotNum *int64,
 394	bidderAddr *ethCommon.Address,
 395	limit *uint, order string,
 396) ([]BidAPI, uint64, error) {
 397	var query string
 398	var args []interface{}
 399	queryStr := `SELECT b.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 400	COUNT(*) OVER() AS total_items FROM (
 401	   SELECT slot_num, MAX(item_id) as maxitem 
 402	   FROM bid GROUP BY slot_num
 403	   )
 404	AS x INNER JOIN bid AS b ON b.item_id = x.maxitem
 405	INNER JOIN block ON b.eth_block_num = block.eth_block_num
 406	INNER JOIN coordinator ON b.bidder_addr = coordinator.bidder_addr 
 407	WHERE (b.slot_num >= ? AND b.slot_num <= ?)`
 408	args = append(args, minSlotNum)
 409	args = append(args, maxSlotNum)
 410	// Apply filters
 411	if bidderAddr != nil {
 412		queryStr += " AND b.bidder_addr = ? "
 413		args = append(args, bidderAddr)
 414	}
 415	queryStr += " ORDER BY b.slot_num "
 416	if order == OrderAsc {
 417		queryStr += "ASC "
 418	} else {
 419		queryStr += "DESC "
 420	}
 421	if limit != nil {
 422		queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 423	}
 424	query = hdb.db.Rebind(queryStr)
 425	bidPtrs := []*BidAPI{}
 426	if err := meddler.QueryAll(hdb.db, &bidPtrs, query, args...); err != nil {
 427		return nil, 0, err
 428	}
 429	// log.Debug(query)
 430	bids := db.SlicePtrsToSlice(bidPtrs).([]BidAPI)
 431	if len(bids) == 0 {
 432		return nil, 0, sql.ErrNoRows
 433	}
 434	return bids, bids[0].TotalItems - uint64(len(bids)), nil
 435}
 436
 437// GetBidsAPI return the bids applying the given filters
 438func (hdb *HistoryDB) GetBidsAPI(
 439	slotNum *int64, forgerAddr *ethCommon.Address,
 440	fromItem, limit *uint, order string,
 441) ([]BidAPI, uint64, error) {
 442	var query string
 443	var args []interface{}
 444	queryStr := `SELECT bid.*, block.timestamp, coordinator.forger_addr, coordinator.url, 
 445	COUNT(*) OVER() AS total_items
 446	FROM bid INNER JOIN block ON bid.eth_block_num = block.eth_block_num 
 447	INNER JOIN coordinator ON bid.bidder_addr = coordinator.bidder_addr `
 448	// Apply filters
 449	nextIsAnd := false
 450	// slotNum filter
 451	if slotNum != nil {
 452		if nextIsAnd {
 453			queryStr += "AND "
 454		} else {
 455			queryStr += "WHERE "
 456		}
 457		queryStr += "bid.slot_num = ? "
 458		args = append(args, slotNum)
 459		nextIsAnd = true
 460	}
 461	// slotNum filter
 462	if forgerAddr != nil {
 463		if nextIsAnd {
 464			queryStr += "AND "
 465		} else {
 466			queryStr += "WHERE "
 467		}
 468		queryStr += "bid.bidder_addr = ? "
 469		args = append(args, forgerAddr)
 470		nextIsAnd = true
 471	}
 472	if fromItem != nil {
 473		if nextIsAnd {
 474			queryStr += "AND "
 475		} else {
 476			queryStr += "WHERE "
 477		}
 478		if order == OrderAsc {
 479			queryStr += "bid.item_id >= ? "
 480		} else {
 481			queryStr += "bid.item_id <= ? "
 482		}
 483		args = append(args, fromItem)
 484	}
 485	// pagination
 486	queryStr += "ORDER BY bid.item_id "
 487	if order == OrderAsc {
 488		queryStr += "ASC "
 489	} else {
 490		queryStr += "DESC "
 491	}
 492	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 493	query, argsQ, err := sqlx.In(queryStr, args...)
 494	if err != nil {
 495		return nil, 0, err
 496	}
 497	query = hdb.db.Rebind(query)
 498	bids := []*BidAPI{}
 499	if err := meddler.QueryAll(hdb.db, &bids, query, argsQ...); err != nil {
 500		return nil, 0, err
 501	}
 502	if len(bids) == 0 {
 503		return nil, 0, sql.ErrNoRows
 504	}
 505	return db.SlicePtrsToSlice(bids).([]BidAPI), bids[0].TotalItems - uint64(len(bids)), nil
 506}
 507
 508// AddCoordinators insert Coordinators into the DB
 509func (hdb *HistoryDB) AddCoordinators(coordinators []common.Coordinator) error {
 510	return hdb.addCoordinators(hdb.db, coordinators)
 511}
 512func (hdb *HistoryDB) addCoordinators(d meddler.DB, coordinators []common.Coordinator) error {
 513	return db.BulkInsert(
 514		d,
 515		"INSERT INTO coordinator (bidder_addr, forger_addr, eth_block_num, url) VALUES %s;",
 516		coordinators[:],
 517	)
 518}
 519
 520// AddExitTree insert Exit tree into the DB
 521func (hdb *HistoryDB) AddExitTree(exitTree []common.ExitInfo) error {
 522	return hdb.addExitTree(hdb.db, exitTree)
 523}
 524func (hdb *HistoryDB) addExitTree(d meddler.DB, exitTree []common.ExitInfo) error {
 525	return db.BulkInsert(
 526		d,
 527		"INSERT INTO exit_tree (batch_num, account_idx, merkle_proof, balance, "+
 528			"instant_withdrawn, delayed_withdraw_request, delayed_withdrawn) VALUES %s;",
 529		exitTree[:],
 530	)
 531}
 532
 533func (hdb *HistoryDB) updateExitTree(d sqlx.Ext, blockNum int64,
 534	rollupWithdrawals []common.WithdrawInfo, wDelayerWithdrawals []common.WDelayerTransfer) error {
 535	type withdrawal struct {
 536		BatchNum               int64              `db:"batch_num"`
 537		AccountIdx             int64              `db:"account_idx"`
 538		InstantWithdrawn       *int64             `db:"instant_withdrawn"`
 539		DelayedWithdrawRequest *int64             `db:"delayed_withdraw_request"`
 540		DelayedWithdrawn       *int64             `db:"delayed_withdrawn"`
 541		Owner                  *ethCommon.Address `db:"owner"`
 542		Token                  *ethCommon.Address `db:"token"`
 543	}
 544	withdrawals := make([]withdrawal, len(rollupWithdrawals)+len(wDelayerWithdrawals))
 545	for i := range rollupWithdrawals {
 546		info := &rollupWithdrawals[i]
 547		withdrawals[i] = withdrawal{
 548			BatchNum:   int64(info.NumExitRoot),
 549			AccountIdx: int64(info.Idx),
 550		}
 551		if info.InstantWithdraw {
 552			withdrawals[i].InstantWithdrawn = &blockNum
 553		} else {
 554			withdrawals[i].DelayedWithdrawRequest = &blockNum
 555			withdrawals[i].Owner = &info.Owner
 556			withdrawals[i].Token = &info.Token
 557		}
 558	}
 559	for i := range wDelayerWithdrawals {
 560		info := &wDelayerWithdrawals[i]
 561		withdrawals[len(rollupWithdrawals)+i] = withdrawal{
 562			DelayedWithdrawn: &blockNum,
 563			Owner:            &info.Owner,
 564			Token:            &info.Token,
 565		}
 566	}
 567	// In VALUES we set an initial row of NULLs to set the types of each
 568	// variable passed as argument
 569	query := `
 570		UPDATE exit_tree e SET
 571			instant_withdrawn = d.instant_withdrawn,
 572			delayed_withdraw_request = CASE
 573				WHEN e.delayed_withdraw_request IS NOT NULL THEN e.delayed_withdraw_request
 574				ELSE d.delayed_withdraw_request
 575			END,
 576			delayed_withdrawn = d.delayed_withdrawn,
 577			owner = d.owner,
 578			token = d.token
 579		FROM (VALUES
 580			(NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BIGINT, NULL::::BYTEA, NULL::::BYTEA),
 581			(:batch_num,
 582			 :account_idx,
 583			 :instant_withdrawn,
 584			 :delayed_withdraw_request,
 585			 :delayed_withdrawn,
 586			 :owner,
 587			 :token)
 588		) as d (batch_num, account_idx, instant_withdrawn, delayed_withdraw_request, delayed_withdrawn, owner, token)
 589		WHERE
 590			(d.batch_num IS NOT NULL AND e.batch_num = d.batch_num AND e.account_idx = d.account_idx) OR
 591			(d.delayed_withdrawn IS NOT NULL AND e.delayed_withdrawn IS NULL AND e.owner = d.owner AND e.token = d.token)
 592		`
 593	if len(withdrawals) > 0 {
 594		if _, err := sqlx.NamedQuery(d, query, withdrawals); err != nil {
 595			return err
 596		}
 597	}
 598
 599	return nil
 600}
 601
 602// AddToken insert a token into the DB
 603func (hdb *HistoryDB) AddToken(token *common.Token) error {
 604	return meddler.Insert(hdb.db, "token", token)
 605}
 606
 607// AddTokens insert tokens into the DB
 608func (hdb *HistoryDB) AddTokens(tokens []common.Token) error { return hdb.addTokens(hdb.db, tokens) }
 609func (hdb *HistoryDB) addTokens(d meddler.DB, tokens []common.Token) error {
 610	return db.BulkInsert(
 611		d,
 612		`INSERT INTO token (
 613			token_id,
 614			eth_block_num,
 615			eth_addr,
 616			name,
 617			symbol,
 618			decimals
 619		) VALUES %s;`,
 620		tokens[:],
 621	)
 622}
 623
 624// UpdateTokenValue updates the USD value of a token
 625func (hdb *HistoryDB) UpdateTokenValue(tokenSymbol string, value float64) error {
 626	_, err := hdb.db.Exec(
 627		"UPDATE token SET usd = $1 WHERE symbol = $2;",
 628		value, tokenSymbol,
 629	)
 630	return err
 631}
 632
 633// GetToken returns a token from the DB given a TokenID
 634func (hdb *HistoryDB) GetToken(tokenID common.TokenID) (*TokenWithUSD, error) {
 635	token := &TokenWithUSD{}
 636	err := meddler.QueryRow(
 637		hdb.db, token, `SELECT * FROM token WHERE token_id = $1;`, tokenID,
 638	)
 639	return token, err
 640}
 641
 642// GetAllTokens returns all tokens from the DB
 643func (hdb *HistoryDB) GetAllTokens() ([]TokenWithUSD, error) {
 644	var tokens []*TokenWithUSD
 645	err := meddler.QueryAll(
 646		hdb.db, &tokens,
 647		"SELECT * FROM token ORDER BY token_id;",
 648	)
 649	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), err
 650}
 651
 652// GetTokens returns a list of tokens from the DB
 653func (hdb *HistoryDB) GetTokens(
 654	ids []common.TokenID, symbols []string, name string, fromItem,
 655	limit *uint, order string,
 656) ([]TokenWithUSD, uint64, error) {
 657	var query string
 658	var args []interface{}
 659	queryStr := `SELECT * , COUNT(*) OVER() AS total_items FROM token `
 660	// Apply filters
 661	nextIsAnd := false
 662	if len(ids) > 0 {
 663		queryStr += "WHERE token_id IN (?) "
 664		nextIsAnd = true
 665		args = append(args, ids)
 666	}
 667	if len(symbols) > 0 {
 668		if nextIsAnd {
 669			queryStr += "AND "
 670		} else {
 671			queryStr += "WHERE "
 672		}
 673		queryStr += "symbol IN (?) "
 674		args = append(args, symbols)
 675		nextIsAnd = true
 676	}
 677	if name != "" {
 678		if nextIsAnd {
 679			queryStr += "AND "
 680		} else {
 681			queryStr += "WHERE "
 682		}
 683		queryStr += "name ~ ? "
 684		args = append(args, name)
 685		nextIsAnd = true
 686	}
 687	if fromItem != nil {
 688		if nextIsAnd {
 689			queryStr += "AND "
 690		} else {
 691			queryStr += "WHERE "
 692		}
 693		if order == OrderAsc {
 694			queryStr += "item_id >= ? "
 695		} else {
 696			queryStr += "item_id <= ? "
 697		}
 698		args = append(args, fromItem)
 699	}
 700	// pagination
 701	queryStr += "ORDER BY item_id "
 702	if order == OrderAsc {
 703		queryStr += "ASC "
 704	} else {
 705		queryStr += "DESC "
 706	}
 707	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
 708	query, argsQ, err := sqlx.In(queryStr, args...)
 709	if err != nil {
 710		return nil, 0, err
 711	}
 712	query = hdb.db.Rebind(query)
 713	tokens := []*TokenWithUSD{}
 714	if err := meddler.QueryAll(hdb.db, &tokens, query, argsQ...); err != nil {
 715		return nil, 0, err
 716	}
 717	if len(tokens) == 0 {
 718		return nil, 0, sql.ErrNoRows
 719	}
 720	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), uint64(len(tokens)) - tokens[0].TotalItems, nil
 721}
 722
 723// GetTokenSymbols returns all the token symbols from the DB
 724func (hdb *HistoryDB) GetTokenSymbols() ([]string, error) {
 725	var tokenSymbols []string
 726	rows, err := hdb.db.Query("SELECT symbol FROM token;")
 727	if err != nil {
 728		return nil, err
 729	}
 730	sym := new(string)
 731	for rows.Next() {
 732		err = rows.Scan(sym)
 733		if err != nil {
 734			return nil, err
 735		}
 736		tokenSymbols = append(tokenSymbols, *sym)
 737	}
 738	return tokenSymbols, nil
 739}
 740
 741// AddAccounts insert accounts into the DB
 742func (hdb *HistoryDB) AddAccounts(accounts []common.Account) error {
 743	return hdb.addAccounts(hdb.db, accounts)
 744}
 745func (hdb *HistoryDB) addAccounts(d meddler.DB, accounts []common.Account) error {
 746	return db.BulkInsert(
 747		d,
 748		`INSERT INTO account (
 749			idx,
 750			token_id,
 751			batch_num,
 752			bjj,
 753			eth_addr
 754		) VALUES %s;`,
 755		accounts[:],
 756	)
 757}
 758
 759// GetAllAccounts returns a list of accounts from the DB
 760func (hdb *HistoryDB) GetAllAccounts() ([]common.Account, error) {
 761	var accs []*common.Account
 762	err := meddler.QueryAll(
 763		hdb.db, &accs,
 764		"SELECT * FROM account ORDER BY idx;",
 765	)
 766	return db.SlicePtrsToSlice(accs).([]common.Account), err
 767}
 768
 769// AddL1Txs inserts L1 txs to the DB. USD and LoadAmountUSD will be set automatically before storing the tx.
 770// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 771// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 772func (hdb *HistoryDB) AddL1Txs(l1txs []common.L1Tx) error { return hdb.addL1Txs(hdb.db, l1txs) }
 773
 774// addL1Txs inserts L1 txs to the DB. USD and LoadAmountUSD will be set automatically before storing the tx.
 775// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
 776// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 777func (hdb *HistoryDB) addL1Txs(d meddler.DB, l1txs []common.L1Tx) error {
 778	txs := []txWrite{}
 779	for i := 0; i < len(l1txs); i++ {
 780		af := new(big.Float).SetInt(l1txs[i].Amount)
 781		amountFloat, _ := af.Float64()
 782		laf := new(big.Float).SetInt(l1txs[i].LoadAmount)
 783		loadAmountFloat, _ := laf.Float64()
 784		txs = append(txs, txWrite{
 785			// Generic
 786			IsL1:            true,
 787			TxID:            l1txs[i].TxID,
 788			Type:            l1txs[i].Type,
 789			Position:        l1txs[i].Position,
 790			FromIdx:         &l1txs[i].FromIdx,
 791			ToIdx:           l1txs[i].ToIdx,
 792			Amount:          l1txs[i].Amount,
 793			EffectiveAmount: l1txs[i].EffectiveAmount,
 794			AmountFloat:     amountFloat,
 795			TokenID:         l1txs[i].TokenID,
 796			BatchNum:        l1txs[i].BatchNum,
 797			EthBlockNum:     l1txs[i].EthBlockNum,
 798			// L1
 799			ToForgeL1TxsNum:     l1txs[i].ToForgeL1TxsNum,
 800			UserOrigin:          &l1txs[i].UserOrigin,
 801			FromEthAddr:         &l1txs[i].FromEthAddr,
 802			FromBJJ:             l1txs[i].FromBJJ,
 803			LoadAmount:          l1txs[i].LoadAmount,
 804			EffectiveLoadAmount: l1txs[i].EffectiveLoadAmount,
 805			LoadAmountFloat:     &loadAmountFloat,
 806		})
 807	}
 808	return hdb.addTxs(d, txs)
 809}
 810
 811// AddL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 812func (hdb *HistoryDB) AddL2Txs(l2txs []common.L2Tx) error { return hdb.addL2Txs(hdb.db, l2txs) }
 813
 814// addL2Txs inserts L2 txs to the DB. TokenID, USD and FeeUSD will be set automatically before storing the tx.
 815func (hdb *HistoryDB) addL2Txs(d meddler.DB, l2txs []common.L2Tx) error {
 816	txs := []txWrite{}
 817	for i := 0; i < len(l2txs); i++ {
 818		f := new(big.Float).SetInt(l2txs[i].Amount)
 819		amountFloat, _ := f.Float64()
 820		txs = append(txs, txWrite{
 821			// Generic
 822			IsL1:        false,
 823			TxID:        l2txs[i].TxID,
 824			Type:        l2txs[i].Type,
 825			Position:    l2txs[i].Position,
 826			FromIdx:     &l2txs[i].FromIdx,
 827			ToIdx:       l2txs[i].ToIdx,
 828			Amount:      l2txs[i].Amount,
 829			AmountFloat: amountFloat,
 830			BatchNum:    &l2txs[i].BatchNum,
 831			EthBlockNum: l2txs[i].EthBlockNum,
 832			// L2
 833			Fee:   &l2txs[i].Fee,
 834			Nonce: &l2txs[i].Nonce,
 835		})
 836	}
 837	return hdb.addTxs(d, txs)
 838}
 839
 840func (hdb *HistoryDB) addTxs(d meddler.DB, txs []txWrite) error {
 841	return db.BulkInsert(
 842		d,
 843		`INSERT INTO tx (
 844			is_l1,
 845			id,
 846			type,
 847			position,
 848			from_idx,
 849			to_idx,
 850			amount,
 851			effective_amount,
 852			amount_f,
 853			token_id,
 854			batch_num,
 855			eth_block_num,
 856			to_forge_l1_txs_num,
 857			user_origin,
 858			from_eth_addr,
 859			from_bjj,
 860			load_amount,
 861			effective_load_amount,
 862			load_amount_f,
 863			fee,
 864			nonce
 865		) VALUES %s;`,
 866		txs[:],
 867	)
 868}
 869
 870// // GetTxs returns a list of txs from the DB
 871// func (hdb *HistoryDB) GetTxs() ([]common.Tx, error) {
 872// 	var txs []*common.Tx
 873// 	err := meddler.QueryAll(
 874// 		hdb.db, &txs,
 875// 		`SELECT * FROM tx
 876// 		ORDER BY (batch_num, position) ASC`,
 877// 	)
 878// 	return db.SlicePtrsToSlice(txs).([]common.Tx), err
 879// }
 880
 881// GetHistoryTx returns a tx from the DB given a TxID
 882func (hdb *HistoryDB) GetHistoryTx(txID common.TxID) (*TxAPI, error) {
 883	tx := &TxAPI{}
 884	err := meddler.QueryRow(
 885		hdb.db, tx, `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 886		hez_idx(tx.from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 887		hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 888		tx.amount, tx.token_id, tx.amount_usd, 
 889		tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 890		tx.load_amount, tx.load_amount_usd, tx.fee, tx.fee_usd, tx.nonce,
 891		token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 892		token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 893		token.usd_update, block.timestamp
 894		FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 895		INNER JOIN block ON tx.eth_block_num = block.eth_block_num 
 896		WHERE tx.id = $1;`, txID,
 897	)
 898	return tx, err
 899}
 900
 901// GetHistoryTxs returns a list of txs from the DB using the HistoryTx struct
 902// and pagination info
 903func (hdb *HistoryDB) GetHistoryTxs(
 904	ethAddr *ethCommon.Address, bjj *babyjub.PublicKey,
 905	tokenID *common.TokenID, idx *common.Idx, batchNum *uint, txType *common.TxType,
 906	fromItem, limit *uint, order string,
 907) ([]TxAPI, uint64, error) {
 908	if ethAddr != nil && bjj != nil {
 909		return nil, 0, errors.New("ethAddr and bjj are incompatible")
 910	}
 911	var query string
 912	var args []interface{}
 913	queryStr := `SELECT tx.item_id, tx.is_l1, tx.id, tx.type, tx.position, 
 914	hez_idx(tx.from_idx, token.symbol) AS from_idx, tx.from_eth_addr, tx.from_bjj,
 915	hez_idx(tx.to_idx, token.symbol) AS to_idx, tx.to_eth_addr, tx.to_bjj,
 916	tx.amount, tx.token_id, tx.amount_usd, 
 917	tx.batch_num, tx.eth_block_num, tx.to_forge_l1_txs_num, tx.user_origin, 
 918	tx.load_amount, tx.load_amount_usd, tx.fee, tx.fee_usd, tx.nonce,
 919	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
 920	token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
 921	token.usd_update, block.timestamp, count(*) OVER() AS total_items 
 922	FROM tx INNER JOIN token ON tx.token_id = token.token_id 
 923	INNER JOIN block ON tx.eth_block_num = block.eth_block_num `
 924	// Apply filters
 925	nextIsAnd := false
 926	// ethAddr filter
 927	if ethAddr != nil {
 928		queryStr += "WHERE (tx.from_eth_addr = ? OR tx.to_eth_addr = ?) "
 929		nextIsAnd = true
 930		args = append(args, ethAddr, ethAddr)
 931	} else if bjj != nil { // bjj filter
 932		queryStr += "WHERE (tx.from_bjj = ? OR tx.to_bjj = ?) "
 933		nextIsAnd = true
 934		args = append(args, bjj, bjj)
 935	}
 936	// tokenID filter
 937	if tokenID != nil {
 938		if nextIsAnd {
 939			queryStr += "AND "
 940		} else {
 941			queryStr += "WHERE "
 942		}
 943		queryStr += "tx.token_id = ? "
 944		args = append(args, tokenID)
 945		nextIsAnd = true
 946	}
 947	// idx filter
 948	if idx != nil {
 949		if nextIsAnd {
 950			queryStr += "AND "
 951		} else {
 952			queryStr += "WHERE "
 953		}
 954		queryStr += "(tx.from_idx = ? OR tx.to_idx = ?) "
 955		args = append(args, idx, idx)
 956		nextIsAnd = true
 957	}
 958	// batchNum filter
 959	if batchNum != nil {
 960		if nextIsAnd {
 961			queryStr += "AND "
 962		} else {
 963			queryStr += "WHERE "
 964		}
 965		queryStr += "tx.batch_num = ? "
 966		args = append(args, batchNum)
 967		nextIsAnd = true
 968	}
 969	// txType filter
 970	if txType != nil {
 971		if nextIsAnd {
 972			queryStr += "AND "
 973		} else {
 974			queryStr += "WHERE "
 975		}
 976		queryStr += "tx.type = ? "
 977		args = append(args, txType)
 978		nextIsAnd = true
 979	}
 980	if fromItem != nil {
 981		if nextIsAnd {
 982			queryStr += "AND "
 983		} else {
 984			queryStr += "WHERE "
 985		}
 986		if order == OrderAsc {
 987			queryStr += "tx.item_id >= ? "
 988		} else {
 989			queryStr += "tx.item_id <= ? "
 990		}
 991		args = append(args, fromItem)
 992		nextIsAnd = true
 993	}
 994	if nextIsAnd {
 995		queryStr += "AND "
 996	} else {
 997		queryStr += "WHERE "
 998	}
 999	queryStr += "tx.batch_num IS NOT NULL "
1000
1001	// pagination
1002	queryStr += "ORDER BY tx.item_id "
1003	if order == OrderAsc {
1004		queryStr += " ASC "
1005	} else {
1006		queryStr += " DESC "
1007	}
1008	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1009	query = hdb.db.Rebind(queryStr)
1010	// log.Debug(query)
1011	txsPtrs := []*TxAPI{}
1012	if err := meddler.QueryAll(hdb.db, &txsPtrs, query, args...); err != nil {
1013		return nil, 0, err
1014	}
1015	txs := db.SlicePtrsToSlice(txsPtrs).([]TxAPI)
1016	if len(txs) == 0 {
1017		return nil, 0, sql.ErrNoRows
1018	}
1019	return txs, txs[0].TotalItems - uint64(len(txs)), nil
1020}
1021
1022// GetAllExits returns all exit from the DB
1023func (hdb *HistoryDB) GetAllExits() ([]common.ExitInfo, error) {
1024	var exits []*common.ExitInfo
1025	err := meddler.QueryAll(
1026		hdb.db, &exits,
1027		`SELECT exit_tree.batch_num, exit_tree.account_idx, exit_tree.merkle_proof,
1028		exit_tree.balance, exit_tree.instant_withdrawn, exit_tree.delayed_withdraw_request,
1029		exit_tree.delayed_withdrawn FROM exit_tree;`,
1030	)
1031	return db.SlicePtrsToSlice(exits).([]common.ExitInfo), err
1032}
1033
1034// GetExitAPI returns a exit from the DB
1035func (hdb *HistoryDB) GetExitAPI(batchNum *uint, idx *common.Idx) (*ExitAPI, error) {
1036	exit := &ExitAPI{}
1037	err := meddler.QueryRow(
1038		hdb.db, exit, `SELECT exit_tree.item_id, exit_tree.batch_num,
1039		hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1040		exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1041		exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1042		token.token_id, token.item_id AS token_item_id, 
1043		token.eth_block_num AS token_block, token.eth_addr, token.name, token.symbol, 
1044		token.decimals, token.usd, token.usd_update
1045		FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1046		INNER JOIN token ON account.token_id = token.token_id 
1047		WHERE exit_tree.batch_num = $1 AND exit_tree.account_idx = $2;`, batchNum, idx,
1048	)
1049	return exit, err
1050}
1051
1052// GetExitsAPI returns a list of exits from the DB and pagination info
1053func (hdb *HistoryDB) GetExitsAPI(
1054	ethAddr *ethCommon.Address, bjj *babyjub.PublicKey, tokenID *common.TokenID,
1055	idx *common.Idx, batchNum *uint, onlyPendingWithdraws *bool,
1056	fromItem, limit *uint, order string,
1057) ([]ExitAPI, uint64, error) {
1058	if ethAddr != nil && bjj != nil {
1059		return nil, 0, errors.New("ethAddr and bjj are incompatible")
1060	}
1061	var query string
1062	var args []interface{}
1063	queryStr := `SELECT exit_tree.item_id, exit_tree.batch_num,
1064	hez_idx(exit_tree.account_idx, token.symbol) AS account_idx,
1065	exit_tree.merkle_proof, exit_tree.balance, exit_tree.instant_withdrawn,
1066	exit_tree.delayed_withdraw_request, exit_tree.delayed_withdrawn,
1067	token.token_id, token.item_id AS token_item_id,
1068	token.eth_block_num AS token_block, token.eth_addr, token.name, token.symbol,
1069	token.decimals, token.usd, token.usd_update, COUNT(*) OVER() AS total_items
1070	FROM exit_tree INNER JOIN account ON exit_tree.account_idx = account.idx 
1071	INNER JOIN token ON account.token_id = token.token_id `
1072	// Apply filters
1073	nextIsAnd := false
1074	// ethAddr filter
1075	if ethAddr != nil {
1076		queryStr += "WHERE account.eth_addr = ? "
1077		nextIsAnd = true
1078		args = append(args, ethAddr)
1079	} else if bjj != nil { // bjj filter
1080		queryStr += "WHERE account.bjj = ? "
1081		nextIsAnd = true
1082		args = append(args, bjj)
1083	}
1084	// tokenID filter
1085	if tokenID != nil {
1086		if nextIsAnd {
1087			queryStr += "AND "
1088		} else {
1089			queryStr += "WHERE "
1090		}
1091		queryStr += "account.token_id = ? "
1092		args = append(args, tokenID)
1093		nextIsAnd = true
1094	}
1095	// idx filter
1096	if idx != nil {
1097		if nextIsAnd {
1098			queryStr += "AND "
1099		} else {
1100			queryStr += "WHERE "
1101		}
1102		queryStr += "exit_tree.account_idx = ? "
1103		args = append(args, idx)
1104		nextIsAnd = true
1105	}
1106	// batchNum filter
1107	if batchNum != nil {
1108		if nextIsAnd {
1109			queryStr += "AND "
1110		} else {
1111			queryStr += "WHERE "
1112		}
1113		queryStr += "exit_tree.batch_num = ? "
1114		args = append(args, batchNum)
1115		nextIsAnd = true
1116	}
1117	// onlyPendingWithdraws
1118	if onlyPendingWithdraws != nil {
1119		if *onlyPendingWithdraws {
1120			if nextIsAnd {
1121				queryStr += "AND "
1122			} else {
1123				queryStr += "WHERE "
1124			}
1125			queryStr += "(exit_tree.instant_withdrawn IS NULL AND exit_tree.delayed_withdrawn IS NULL) "
1126			nextIsAnd = true
1127		}
1128	}
1129	if fromItem != nil {
1130		if nextIsAnd {
1131			queryStr += "AND "
1132		} else {
1133			queryStr += "WHERE "
1134		}
1135		if order == OrderAsc {
1136			queryStr += "exit_tree.item_id >= ? "
1137		} else {
1138			queryStr += "exit_tree.item_id <= ? "
1139		}
1140		args = append(args, fromItem)
1141		// nextIsAnd = true
1142	}
1143	// pagination
1144	queryStr += "ORDER BY exit_tree.item_id "
1145	if order == OrderAsc {
1146		queryStr += " ASC "
1147	} else {
1148		queryStr += " DESC "
1149	}
1150	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1151	query = hdb.db.Rebind(queryStr)
1152	// log.Debug(query)
1153	exits := []*ExitAPI{}
1154	if err := meddler.QueryAll(hdb.db, &exits, query, args...); err != nil {
1155		return nil, 0, err
1156	}
1157	if len(exits) == 0 {
1158		return nil, 0, sql.ErrNoRows
1159	}
1160	return db.SlicePtrsToSlice(exits).([]ExitAPI), exits[0].TotalItems - uint64(len(exits)), nil
1161}
1162
1163// GetAllL1UserTxs returns all L1UserTxs from the DB
1164func (hdb *HistoryDB) GetAllL1UserTxs() ([]common.L1Tx, error) {
1165	var txs []*common.L1Tx
1166	err := meddler.QueryAll(
1167		hdb.db, &txs,
1168		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1169		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1170		tx.amount, tx.effective_amount, tx.load_amount, tx.effective_load_amount,
1171		tx.eth_block_num, tx.type, tx.batch_num
1172		FROM tx WHERE is_l1 = TRUE AND user_origin = TRUE;`,
1173	)
1174	return db.SlicePtrsToSlice(txs).([]common.L1Tx), err
1175}
1176
1177// GetAllL1CoordinatorTxs returns all L1CoordinatorTxs from the DB
1178func (hdb *HistoryDB) GetAllL1CoordinatorTxs() ([]common.L1Tx, error) {
1179	var txs []*common.L1Tx
1180	err := meddler.QueryAll(
1181		hdb.db, &txs,
1182		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1183		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1184		tx.amount, tx.effective_amount, tx.load_amount, tx.effective_load_amount,
1185		tx.eth_block_num, tx.type, tx.batch_num
1186		FROM tx WHERE is_l1 = TRUE AND user_origin = FALSE;`,
1187	)
1188	return db.SlicePtrsToSlice(txs).([]common.L1Tx), err
1189}
1190
1191// GetAllL2Txs returns all L2Txs from the DB
1192func (hdb *HistoryDB) GetAllL2Txs() ([]common.L2Tx, error) {
1193	var txs []*common.L2Tx
1194	err := meddler.QueryAll(
1195		hdb.db, &txs,
1196		`SELECT tx.id, tx.batch_num, tx.position,
1197		tx.from_idx, tx.to_idx, tx.amount, tx.fee, tx.nonce,
1198		tx.type, tx.eth_block_num
1199		FROM tx WHERE is_l1 = FALSE;`,
1200	)
1201	return db.SlicePtrsToSlice(txs).([]common.L2Tx), err
1202}
1203
1204// GetL1UserTxs gets L1 User Txs to be forged in the L1Batch with toForgeL1TxsNum.
1205func (hdb *HistoryDB) GetL1UserTxs(toForgeL1TxsNum int64) ([]common.L1Tx, error) {
1206	var txs []*common.L1Tx
1207	err := meddler.QueryAll(
1208		hdb.db, &txs,
1209		`SELECT tx.id, tx.to_forge_l1_txs_num, tx.position, tx.user_origin,
1210		tx.from_idx, tx.from_eth_addr, tx.from_bjj, tx.to_idx, tx.token_id,
1211		tx.amount, tx.effective_amount, tx.load_amount, tx.effective_load_amount,
1212		tx.eth_block_num, tx.type, tx.batch_num
1213		FROM tx WHERE to_forge_l1_txs_num = $1 AND is_l1 = TRUE AND user_origin = TRUE;`,
1214		toForgeL1TxsNum,
1215	)
1216	return db.SlicePtrsToSlice(txs).([]common.L1Tx), err
1217}
1218
1219// TODO: Think about chaning all the queries that return a last value, to queries that return the next valid value.
1220
1221// GetLastTxsPosition for a given to_forge_l1_txs_num
1222func (hdb *HistoryDB) GetLastTxsPosition(toForgeL1TxsNum int64) (int, error) {
1223	row := hdb.db.QueryRow("SELECT MAX(position) FROM tx WHERE to_forge_l1_txs_num = $1;", toForgeL1TxsNum)
1224	var lastL1TxsPosition int
1225	return lastL1TxsPosition, row.Scan(&lastL1TxsPosition)
1226}
1227
1228// GetSCVars returns the rollup, auction and wdelayer smart contracts variables at their last update.
1229func (hdb *HistoryDB) GetSCVars() (*common.RollupVariables, *common.AuctionVariables,
1230	*common.WDelayerVariables, error) {
1231	var rollup common.RollupVariables
1232	var auction common.AuctionVariables
1233	var wDelayer common.WDelayerVariables
1234	if err := meddler.QueryRow(hdb.db, &rollup,
1235		"SELECT * FROM rollup_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1236		return nil, nil, nil, err
1237	}
1238	if err := meddler.QueryRow(hdb.db, &auction,
1239		"SELECT * FROM auction_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1240		return nil, nil, nil, err
1241	}
1242	if err := meddler.QueryRow(hdb.db, &wDelayer,
1243		"SELECT * FROM wdelayer_vars ORDER BY eth_block_num DESC LIMIT 1;"); err != nil {
1244		return nil, nil, nil, err
1245	}
1246	return &rollup, &auction, &wDelayer, nil
1247}
1248
1249func (hdb *HistoryDB) setRollupVars(d meddler.DB, rollup *common.RollupVariables) error {
1250	return meddler.Insert(d, "rollup_vars", rollup)
1251}
1252
1253func (hdb *HistoryDB) setAuctionVars(d meddler.DB, auction *common.AuctionVariables) error {
1254	return meddler.Insert(d, "auction_vars", auction)
1255}
1256
1257func (hdb *HistoryDB) setWDelayerVars(d meddler.DB, wDelayer *common.WDelayerVariables) error {
1258	return meddler.Insert(d, "wdelayer_vars", wDelayer)
1259}
1260
1261// SetInitialSCVars sets the initial state of rollup, auction, wdelayer smart
1262// contract variables.  This initial state is stored linked to block 0, which
1263// always exist in the DB and is used to store initialization data that always
1264// exist in the smart contracts.
1265func (hdb *HistoryDB) SetInitialSCVars(rollup *common.RollupVariables,
1266	auction *common.AuctionVariables, wDelayer *common.WDelayerVariables) error {
1267	txn, err := hdb.db.Beginx()
1268	if err != nil {
1269		return err
1270	}
1271	defer func() {
1272		if err != nil {
1273			db.Rollback(txn)
1274		}
1275	}()
1276	// Force EthBlockNum to be 0 because it's the block used to link data
1277	// that belongs to the creation of the smart contracts
1278	rollup.EthBlockNum = 0
1279	auction.EthBlockNum = 0
1280	wDelayer.EthBlockNum = 0
1281	auction.DefaultSlotSetBidSlotNum = 0
1282	if err := hdb.setRollupVars(txn, rollup); err != nil {
1283		return err
1284	}
1285	if err := hdb.setAuctionVars(txn, auction); err != nil {
1286		return err
1287	}
1288	if err := hdb.setWDelayerVars(txn, wDelayer); err != nil {
1289		return err
1290	}
1291
1292	return txn.Commit()
1293}
1294
1295// AddBlockSCData stores all the information of a block retrieved by the
1296// Synchronizer.  Blocks should be inserted in order, leaving no gaps because
1297// the pagination system of the API/DB depends on this.  Within blocks, all
1298// items should also be in the correct order (Accounts, Tokens, Txs, etc.)
1299func (hdb *HistoryDB) AddBlockSCData(blockData *common.BlockData) (err error) {
1300	txn, err := hdb.db.Beginx()
1301	if err != nil {
1302		return err
1303	}
1304	defer func() {
1305		if err != nil {
1306			db.Rollback(txn)
1307		}
1308	}()
1309
1310	// Add block
1311	if err := hdb.addBlock(txn, &blockData.Block); err != nil {
1312		return err
1313	}
1314
1315	// Add Coordinators
1316	if len(blockData.Auction.Coordinators) > 0 {
1317		if err := hdb.addCoordinators(txn, blockData.Auction.Coordinators); err != nil {
1318			return err
1319		}
1320	}
1321
1322	// Add Bids
1323	if len(blockData.Auction.Bids) > 0 {
1324		if err := hdb.addBids(txn, blockData.Auction.Bids); err != nil {
1325			return err
1326		}
1327	}
1328
1329	// Add Tokens
1330	if len(blockData.Rollup.AddedTokens) > 0 {
1331		if err := hdb.addTokens(txn, blockData.Rollup.AddedTokens); err != nil {
1332			return err
1333		}
1334	}
1335
1336	// Prepare user L1 txs to be added.
1337	// They must be added before the batch that will forge them (which can be in the same block)
1338	// and after the account that will be sent to (also can be in the same block).
1339	// Note: insert order is not relevant since item_id will be updated by a DB trigger when
1340	// the batch that forges those txs is inserted
1341	userL1s := make(map[common.BatchNum][]common.L1Tx)
1342	for i := range blockData.Rollup.L1UserTxs {
1343		batchThatForgesIsInTheBlock := false
1344		for _, batch := range blockData.Rollup.Batches {
1345			if batch.Batch.ForgeL1TxsNum != nil &&
1346				*batch.Batch.ForgeL1TxsNum == *blockData.Rollup.L1UserTxs[i].ToForgeL1TxsNum {
1347				// Tx is forged in this block. It's guaranteed that:
1348				// * the first batch of the block won't forge user L1 txs that have been added in this block
1349				// * batch nums are sequential therefore it's safe to add the tx at batch.BatchNum -1
1350				batchThatForgesIsInTheBlock = true
1351				addAtBatchNum := batch.Batch.BatchNum - 1
1352				userL1s[addAtBatchNum] = append(userL1s[addAtBatchNum], blockData.Rollup.L1UserTxs[i])
1353				break
1354			}
1355		}
1356		if !batchThatForgesIsInTheBlock {
1357			// User artificial batchNum 0 to add txs that are not forge in this block
1358			// after all the accounts of the block have been added
1359			userL1s[0] = append(userL1s[0], blockData.Rollup.L1UserTxs[i])
1360		}
1361	}
1362
1363	// Add Batches
1364	for i := range blockData.Rollup.Batches {
1365		batch := &blockData.Rollup.Batches[i]
1366		// Add Batch: this will trigger an update on the DB
1367		// that will set the batch num of forged L1 txs in this batch
1368		if err = hdb.addBatch(txn, &batch.Batch); err != nil {
1369			return err
1370		}
1371
1372		// Add accounts
1373		if len(batch.CreatedAccounts) > 0 {
1374			if err := hdb.addAccounts(txn, batch.CreatedAccounts); err != nil {
1375				return err
1376			}
1377		}
1378
1379		// Add forged l1 coordinator Txs
1380		if len(batch.L1CoordinatorTxs) > 0 {
1381			if err := hdb.addL1Txs(txn, batch.L1CoordinatorTxs); err != nil {
1382				return err
1383			}
1384		}
1385
1386		// Add l2 Txs
1387		if len(batch.L2Txs) > 0 {
1388			if err := hdb.addL2Txs(txn, batch.L2Txs); err != nil {
1389				return err
1390			}
1391		}
1392
1393		// Add user L1 txs that will be forged in next batch
1394		if userlL1s, ok := userL1s[batch.Batch.BatchNum]; ok {
1395			if err := hdb.addL1Txs(txn, userlL1s); err != nil {
1396				return err
1397			}
1398		}
1399
1400		// Add exit tree
1401		if len(batch.ExitTree) > 0 {
1402			if err := hdb.addExitTree(txn, batch.ExitTree); err != nil {
1403				return err
1404			}
1405		}
1406	}
1407	// Add user L1 txs that won't be forged in this block
1408	if userL1sNotForgedInThisBlock, ok := userL1s[0]; ok {
1409		if err := hdb.addL1Txs(txn, userL1sNotForgedInThisBlock); err != nil {
1410			return err
1411		}
1412	}
1413	if blockData.Rollup.Vars != nil {
1414		if err := hdb.setRollupVars(txn, blockData.Rollup.Vars); err != nil {
1415			return err
1416		}
1417	}
1418	if blockData.Auction.Vars != nil {
1419		if err := hdb.setAuctionVars(txn, blockData.Auction.Vars); err != nil {
1420			return err
1421		}
1422	}
1423	if blockData.WDelayer.Vars != nil {
1424		if err := hdb.setWDelayerVars(txn, blockData.WDelayer.Vars); err != nil {
1425			return err
1426		}
1427	}
1428
1429	if err := hdb.updateExitTree(txn, blockData.Block.Num,
1430		blockData.Rollup.Withdrawals, blockData.WDelayer.Withdrawals); err != nil {
1431		return err
1432	}
1433
1434	return txn.Commit()
1435}
1436
1437// GetCoordinatorAPI returns a coordinator by its bidderAddr
1438func (hdb *HistoryDB) GetCoordinatorAPI(bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
1439	coordinator := &CoordinatorAPI{}
1440	err := meddler.QueryRow(hdb.db, coordinator, "SELECT * FROM coordinator WHERE bidder_addr = $1;", bidderAddr)
1441	return coordinator, err
1442}
1443
1444// GetCoordinatorsAPI returns a list of coordinators from the DB and pagination info
1445func (hdb *HistoryDB) GetCoordinatorsAPI(fromItem, limit *uint, order string) ([]CoordinatorAPI, uint64, error) {
1446	var query string
1447	var args []interface{}
1448	queryStr := `SELECT coordinator.*, 
1449	COUNT(*) OVER() AS total_items
1450	FROM coordinator `
1451	// Apply filters
1452	if fromItem != nil {
1453		queryStr += "WHERE "
1454		if order == OrderAsc {
1455			queryStr += "coordinator.item_id >= ? "
1456		} else {
1457			queryStr += "coordinator.item_id <= ? "
1458		}
1459		args = append(args, fromItem)
1460	}
1461	// pagination
1462	queryStr += "ORDER BY coordinator.item_id "
1463	if order == OrderAsc {
1464		queryStr += " ASC "
1465	} else {
1466		queryStr += " DESC "
1467	}
1468	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1469	query = hdb.db.Rebind(queryStr)
1470
1471	coordinators := []*CoordinatorAPI{}
1472	if err := meddler.QueryAll(hdb.db, &coordinators, query, args...); err != nil {
1473		return nil, 0, err
1474	}
1475	if len(coordinators) == 0 {
1476		return nil, 0, sql.ErrNoRows
1477	}
1478	return db.SlicePtrsToSlice(coordinators).([]CoordinatorAPI),
1479		coordinators[0].TotalItems - uint64(len(coordinators)), nil
1480}
1481
1482// AddAuctionVars insert auction vars into the DB
1483func (hdb *HistoryDB) AddAuctionVars(auctionVars *common.AuctionVariables) error {
1484	return meddler.Insert(hdb.db, "auction_vars", auctionVars)
1485}
1486
1487// GetAuctionVars returns auction variables
1488func (hdb *HistoryDB) GetAuctionVars() (*common.AuctionVariables, error) {
1489	auctionVars := &common.AuctionVariables{}
1490	err := meddler.QueryRow(
1491		hdb.db, auctionVars, `SELECT * FROM auction_vars;`,
1492	)
1493	return auctionVars, err
1494}
1495
1496// GetAccountAPI returns an account by its index
1497func (hdb *HistoryDB) GetAccountAPI(idx common.Idx) (*AccountAPI, error) {
1498	account := &AccountAPI{}
1499	err := meddler.QueryRow(hdb.db, account, `SELECT account.item_id, hez_idx(account.idx, 
1500	token.symbol) as idx, account.batch_num, account.bjj, account.eth_addr,
1501	token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1502	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update 
1503	FROM account INNER JOIN token ON account.token_id = token.token_id WHERE idx = $1;`, idx)
1504
1505	if err != nil {
1506		return nil, err
1507	}
1508
1509	return account, nil
1510}
1511
1512// GetAccountsAPI returns a list of accounts from the DB and pagination info
1513func (hdb *HistoryDB) GetAccountsAPI(
1514	tokenIDs []common.TokenID, ethAddr *ethCommon.Address,
1515	bjj *babyjub.PublicKey, fromItem, limit *uint, order string,
1516) ([]AccountAPI, uint64, error) {
1517	if ethAddr != nil && bjj != nil {
1518		return nil, 0, errors.New("ethAddr and bjj are incompatible")
1519	}
1520	var query string
1521	var args []interface{}
1522	queryStr := `SELECT account.item_id, hez_idx(account.idx, token.symbol) as idx, account.batch_num, 
1523	account.bjj, account.eth_addr, token.token_id, token.item_id AS token_item_id, token.eth_block_num AS token_block,
1524	token.eth_addr as token_eth_addr, token.name, token.symbol, token.decimals, token.usd, token.usd_update, 
1525	COUNT(*) OVER() AS total_items
1526	FROM account INNER JOIN token ON account.token_id = token.token_id `
1527	// Apply filters
1528	nextIsAnd := false
1529	// ethAddr filter
1530	if ethAddr != nil {
1531		queryStr += "WHERE account.eth_addr = ? "
1532		nextIsAnd = true
1533		args = append(args, ethAddr)
1534	} else if bjj != nil { // bjj filter
1535		queryStr += "WHERE account.bjj = ? "
1536		nextIsAnd = true
1537		args = append(args, bjj)
1538	}
1539	// tokenID filter
1540	if len(tokenIDs) > 0 {
1541		if nextIsAnd {
1542			queryStr += "AND "
1543		} else {
1544			queryStr += "WHERE "
1545		}
1546		queryStr += "account.token_id IN (?) "
1547		args = append(args, tokenIDs)
1548		nextIsAnd = true
1549	}
1550	if fromItem != nil {
1551		if nextIsAnd {
1552			queryStr += "AND "
1553		} else {
1554			queryStr += "WHERE "
1555		}
1556		if order == OrderAsc {
1557			queryStr += "account.item_id >= ? "
1558		} else {
1559			queryStr += "account.item_id <= ? "
1560		}
1561		args = append(args, fromItem)
1562	}
1563	// pagination
1564	queryStr += "ORDER BY account.item_id "
1565	if order == OrderAsc {
1566		queryStr += " ASC "
1567	} else {
1568		queryStr += " DESC "
1569	}
1570	queryStr += fmt.Sprintf("LIMIT %d;", *limit)
1571	query, argsQ, err := sqlx.In(queryStr, args...)
1572	if err != nil {
1573		return nil, 0, err
1574	}
1575	query = hdb.db.Rebind(query)
1576
1577	accounts := []*AccountAPI{}
1578	if err := meddler.QueryAll(hdb.db, &accounts, query, argsQ...); err != nil {
1579		return nil, 0, err
1580	}
1581	if len(accounts) == 0 {
1582		return nil, 0, sql.ErrNoRows
1583	}
1584
1585	return db.SlicePtrsToSlice(accounts).([]AccountAPI),
1586		accounts[0].TotalItems - uint64(len(accounts)), nil
1587}
1588
1589// GetMetrics returns metrics
1590func (hdb *HistoryDB) GetMetrics(lastBatchNum common.BatchNum) (*Metrics, error) {
1591	metricsTotals := &MetricsTotals{}
1592	metrics := &Metrics{}
1593	err := meddler.QueryRow(
1594		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, MIN(tx.batch_num) as batch_num 
1595		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1596		WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS';`)
1597	if err != nil {
1598		return nil, err
1599	}
1600
1601	metrics.TransactionsPerSecond = float64(metricsTotals.TotalTransactions / (24 * 60 * 60))
1602	if (lastBatchNum - metricsTotals.FirstBatchNum) > 0 {
1603		metrics.TransactionsPerBatch = float64(int64(metricsTotals.TotalTransactions) /
1604			int64(lastBatchNum-metricsTotals.FirstBatchNum))
1605	} else {
1606		metrics.TransactionsPerBatch = float64(0)
1607	}
1608
1609	err = meddler.QueryRow(
1610		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1611		SUM(total_fees_usd) AS total_fees FROM batch 
1612		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1613	if err != nil {
1614		return nil, err
1615	}
1616	if metricsTotals.TotalBatches > 0 {
1617		metrics.BatchFrequency = float64((24 * 60 * 60) / metricsTotals.TotalBatches)
1618	} else {
1619		metrics.BatchFrequency = 0
1620	}
1621	if metricsTotals.TotalTransactions > 0 {
1622		metrics.AvgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1623	} else {
1624		metrics.AvgTransactionFee = 0
1625	}
1626	err = meddler.QueryRow(
1627		hdb.db, metrics,
1628		`SELECT COUNT(*) AS total_bjjs, COUNT(DISTINCT(bjj)) AS total_accounts FROM account;`)
1629	if err != nil {
1630		return nil, err
1631	}
1632
1633	return metrics, nil
1634}
1635
1636// GetAvgTxFee returns average transaction fee of the last 1h
1637func (hdb *HistoryDB) GetAvgTxFee() (float64, error) {
1638	metricsTotals := &MetricsTotals{}
1639	err := meddler.QueryRow(
1640		hdb.db, metricsTotals, `SELECT COUNT(tx.*) as total_txs, MIN(tx.batch_num) as batch_num 
1641		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
1642		WHERE block.timestamp >= NOW() - INTERVAL '1 HOURS';`)
1643	if err != nil {
1644		return 0, err
1645	}
1646	err = meddler.QueryRow(
1647		hdb.db, metricsTotals, `SELECT COUNT(*) AS total_batches, 
1648		SUM(total_fees_usd) AS total_fees FROM batch 
1649		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
1650	if err != nil {
1651		return 0, err
1652	}
1653
1654	var avgTransactionFee float64
1655	if metricsTotals.TotalTransactions > 0 {
1656		avgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
1657	} else {
1658		avgTransactionFee = 0
1659	}
1660
1661	return avgTransactionFee, nil
1662}