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