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nfts.go
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nfts.go
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package models
import (
"context"
"database/sql"
"fmt"
"math/big"
"strings"
"time"
"github.com/diadata-org/diadata/pkg/dia"
"github.com/ethereum/go-ethereum/common"
"github.com/jackc/pgtype"
"github.com/jackc/pgx/v4"
)
// SetNFTClass stores @nftClass in postgres.
func (rdb *RelDB) SetNFTClass(nftClass dia.NFTClass) error {
query := fmt.Sprintf("insert into %s (address,symbol,name,blockchain,contract_type,category) values ($1,$2,$3,$4,$5,NULLIF($6,''))", nftclassTable)
_, err := rdb.postgresClient.Exec(context.Background(), query, nftClass.Address, nftClass.Symbol, nftClass.Name, nftClass.Blockchain, nftClass.ContractType, nftClass.Category)
if err != nil {
return err
}
return nil
}
func (rdb *RelDB) GetNFTClass(address string, blockchain string) (nftclass dia.NFTClass, err error) {
query := fmt.Sprintf("select symbol,name,contract_type,category from %s where address=$1 and blockchain=$2", nftclassTable)
var category interface{}
err = rdb.postgresClient.QueryRow(context.Background(), query, address, blockchain).Scan(&nftclass.Symbol, &nftclass.Name, &nftclass.ContractType, &category)
if err != nil {
return
}
nftclass.Address = address
nftclass.Blockchain = blockchain
if category != nil {
nftclass.Category = category.(string)
}
return
}
func (rdb *RelDB) GetNFTClassID(address string, blockchain string) (ID string, err error) {
query := fmt.Sprintf("select nftclass_id from %s where address=$1 and blockchain=$2", nftclassTable)
err = rdb.postgresClient.QueryRow(context.Background(), query, address, blockchain).Scan(&ID)
if err != nil {
return
}
return ID, nil
}
func (rdb *RelDB) GetNFTClassByID(id string) (nftclass dia.NFTClass, err error) {
query := fmt.Sprintf("select address,symbol,name,blockchain,contract_type,category from %s where nftclass_id=$1", nftclassTable)
var category interface{}
err = rdb.postgresClient.QueryRow(context.Background(), query, id).Scan(&nftclass.Address, &nftclass.Symbol, &nftclass.Name, &nftclass.Blockchain, &nftclass.ContractType, &category)
if err != nil {
return
}
if category != nil {
nftclass.Category = category.(string)
}
return
}
// GetAllNFTClasses returns all NFT classes on @blockchain.
func (rdb *RelDB) GetAllNFTClasses(blockchain string) (nftClasses []dia.NFTClass, err error) {
var rows pgx.Rows
query := fmt.Sprintf("select address,symbol,name,blockchain,contract_type,category from %s where blockchain=$1 order by name desc", nftclassTable)
rows, err = rdb.postgresClient.Query(context.Background(), query, blockchain)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
var nftClass dia.NFTClass
var category pgtype.Unknown
err := rows.Scan(&nftClass.Address, &nftClass.Symbol, &nftClass.Name, &nftClass.Blockchain, &nftClass.ContractType, &category)
if err != nil {
log.Error(err)
}
nftClass.Category = category.String
nftClasses = append(nftClasses, nftClass)
}
return
}
// GetNFTClassPage returns @limit NFT classes with @offset.
func (rdb *RelDB) GetNFTClasses(limit, offset uint64) (nftClasses []dia.NFTClass, err error) {
query := fmt.Sprintf("select address,symbol,name,blockchain,contract_type,category from %s LIMIT $1 OFFSET $2", nftclassTable)
rows, err := rdb.postgresClient.Query(context.Background(), query, limit, offset)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
var nftClass dia.NFTClass
var category pgtype.Unknown
err := rows.Scan(&nftClass.Address, &nftClass.Symbol, &nftClass.Name, &nftClass.Blockchain, &nftClass.ContractType, &category)
if err != nil {
log.Error(err)
}
nftClass.Category = category.String
nftClasses = append(nftClasses, nftClass)
}
return
}
func (rdb *RelDB) UpdateNFTClassCategory(nftclassID string, category string) (bool, error) {
query := fmt.Sprintf("update %s set category=$1 where nftclass_id=$2", nftclassTable)
resp, err := rdb.postgresClient.Exec(context.Background(), query, category, nftclassID)
if err != nil {
return false, err
}
var success bool
respSlice := strings.Split(string(resp), " ")
numUpdates := respSlice[1]
if numUpdates != "0" {
success = true
}
return success, nil
}
// GetNFTCategories returns all available NFT categories.
func (rdb *RelDB) GetNFTCategories() (categories []string, err error) {
var rows pgx.Rows
query := fmt.Sprintf("select category from %s", nftcategoryTable)
rows, err = rdb.postgresClient.Query(context.Background(), query)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
var category string
err := rows.Scan(&category)
if err != nil {
log.Error(err)
}
categories = append(categories, category)
}
return
}
func (rdb *RelDB) SetNFT(nft dia.NFT) error {
nftClassID, err := rdb.GetNFTClassID(nft.NFTClass.Address, nft.NFTClass.Blockchain)
if err != nil {
return err
}
query := fmt.Sprintf("insert into %s (nftclass_id,token_id,creation_time,creator_address,uri,attributes) values ($1,$2,$3,$4,$5,$6)", nftTable)
_, err = rdb.postgresClient.Exec(context.Background(), query, nftClassID, nft.TokenID, nft.CreationTime, nft.CreatorAddress, nft.URI, nft.Attributes)
if err != nil {
return err
}
return nil
}
func (rdb *RelDB) GetNFT(address string, blockchain string, tokenID string) (dia.NFT, error) {
nft := dia.NFT{}
if blockchain == dia.ETHEREUM {
address = common.HexToAddress(address).Hex()
}
query := fmt.Sprintf("select c.address, c.symbol, c.name, c.blockchain, c.contract_type, c.category, n.token_id, n.creation_time, n.creator_address, n.uri, n.attributes from %s n inner join %s c on(c.nftclass_id=n.nftclass_id and c.address=$1 and c.blockchain=$2) where n.token_id=$3", nftTable, nftclassTable)
var classCat sql.NullString
err := rdb.postgresClient.QueryRow(context.Background(), query, address, blockchain, tokenID).Scan(
&nft.NFTClass.Address,
&nft.NFTClass.Symbol,
&nft.NFTClass.Name,
&nft.NFTClass.Blockchain,
&nft.NFTClass.ContractType,
&classCat,
&nft.TokenID,
&nft.CreationTime,
&nft.CreatorAddress,
&nft.URI,
&nft.Attributes,
)
if classCat.Valid {
nft.NFTClass.Category = classCat.String
}
return nft, err
}
func (rdb *RelDB) GetNFTID(address string, blockchain string, tokenID string) (ID string, err error) {
nftclassID, err := rdb.GetNFTClassID(address, blockchain)
if err != nil {
return
}
query := fmt.Sprintf("select nft_id from %s where nftclass_id=$1 and token_id=$2 ", nftTable)
err = rdb.postgresClient.QueryRow(context.Background(), query, nftclassID, tokenID).Scan(&ID)
if err != nil {
return
}
return
}
// GetLastBlockheightTopshot returns the last block number before timestamp given by @upperBound.
func (rdb *RelDB) GetLastBlockheightTopshot(upperBound time.Time) (uint64, error) {
query := fmt.Sprintf("select attributes from %s where nftclass_id=(select nftclass_id from %s where address='0x0b2a3299cc857e29' and blockchain='Flow') order by creation_time desc limit 1;", nftTable, nftclassTable)
attributes := make(map[string]interface{})
err := rdb.postgresClient.QueryRow(context.Background(), query).Scan(&attributes)
if err != nil {
return 0, err
}
currentBlock := uint64(attributes["blocknumber"].(float64))
return currentBlock, nil
}
// SetNFTTTrade stores @trade.
func (rdb *RelDB) SetNFTTrade(trade dia.NFTTrade) error {
nftclassID, err := rdb.GetNFTClassID(trade.NFT.NFTClass.Address, trade.NFT.NFTClass.Blockchain)
if err != nil {
return err
}
nftID, err := rdb.GetNFTID(trade.NFT.NFTClass.Address, trade.NFT.NFTClass.Blockchain, trade.NFT.TokenID)
if err != nil {
return err
}
price := trade.Price.String()
tradeVars := "nftclass_id,nft_id,price,price_usd,transfer_from,transfer_to,currency_symbol,currency_address,currency_decimals,block_number,trade_time,tx_hash,marketplace"
query := fmt.Sprintf("insert into %s (%s) values ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13)", nfttradeTable, tradeVars)
_, err = rdb.postgresClient.Exec(context.Background(), query, nftclassID, nftID, price, trade.PriceUSD, trade.FromAddress, trade.ToAddress, trade.CurrencySymbol, trade.CurrencyAddress, trade.CurrencyDecimals, trade.BlockNumber, trade.Timestamp, trade.TxHash, trade.Exchange)
if err != nil {
return err
}
return nil
}
// GetLastBlockNFTTtrade returns the last blocknumber that was scraped for trades in @nftclass.
func (rdb *RelDB) GetLastBlockNFTTrade(nftclass dia.NFTClass) (blocknumber uint64, err error) {
query := fmt.Sprintf("select block_number from %s where nftclass_id=(select nftclass_id from %s where address='%s' and blockchain='%s') order by block_number desc limit 1;", nfttradeTable, nftclassTable, nftclass.Address, nftclass.Blockchain)
err = rdb.postgresClient.QueryRow(context.Background(), query).Scan(&blocknumber)
if err != nil {
return
}
return
}
// GetNFTTrades returns all trades done on @nft.
func (rdb *RelDB) GetNFTTrades(nft dia.NFT) (trades []dia.NFTTrade, err error) {
var rows pgx.Rows
nftID, err := rdb.GetNFTID(nft.NFTClass.Address, nft.NFTClass.Blockchain, nft.TokenID)
tradeVars := "price,price_usd,transfer_from,transfer_to,currency_symbol,currency_address,currency_decimals,block_number,trade_time,tx_hash,marketplace"
query := fmt.Sprintf("select %s from %s where nft_id='%s' order by trade_time desc", tradeVars, nfttradeTable, nftID)
rows, err = rdb.postgresClient.Query(context.Background(), query)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
var trade dia.NFTTrade
var price string
err := rows.Scan(
&price,
&trade.PriceUSD,
&trade.FromAddress,
&trade.ToAddress,
&trade.CurrencySymbol,
&trade.CurrencyAddress,
&trade.CurrencyDecimals,
&trade.BlockNumber,
&trade.Timestamp,
&trade.TxHash,
&trade.Exchange,
)
if err != nil {
return []dia.NFTTrade{}, err
}
n := new(big.Int)
n, ok := n.SetString(price, 10)
if !ok {
return []dia.NFTTrade{}, err
}
trade.Price = n
trades = append(trades, trade)
}
return
}
// GetNFTPrice30Days returns the average price of all NFTs in @nftclass over the last 30 days.
func (rdb *RelDB) GetNFTPrice30Days(nftclass dia.NFTClass) (float64, error) {
// TO DO
return 0, nil
}
// SetNFTBid stores @bid.
func (rdb *RelDB) SetNFTBid(bid dia.NFTBid) error {
nftID, err := rdb.GetNFTID(bid.NFT.NFTClass.Address, bid.NFT.NFTClass.Blockchain, bid.NFT.TokenID)
if err != nil {
return err
}
bidVars := "nft_id,bid_value,from_address,currency_symbol,currency_address,currency_decimals,blocknumber,blockposition,bid_time,tx_hash,marketplace"
query := fmt.Sprintf("insert into %s (%s) values ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11)", nftbidTable, bidVars)
_, err = rdb.postgresClient.Exec(
context.Background(),
query,
nftID,
bid.Value.String(),
bid.FromAddress,
bid.CurrencySymbol,
bid.CurrencyAddress,
bid.CurrencyDecimals,
bid.BlockNumber,
bid.BlockPosition,
bid.Timestamp,
bid.TxHash,
bid.Exchange,
)
if err != nil {
return err
}
return nil
}
// GetLastNFTBid returns the last bid on the nft with @address and @tokenID.
// Here, 'last' refers to block number and block position smaller or equal
// (in the case of block number) than @blockNumber and @blockPosition resp.
func (rdb *RelDB) GetLastNFTBid(address string, blockchain string, tokenID string, blockNumber uint64, blockPosition uint) (nftBid dia.NFTBid, err error) {
nftID, err := rdb.GetNFTID(address, blockchain, tokenID)
if err != nil {
return
}
nftBid.NFT.NFTClass.Address = address
nftBid.NFT.NFTClass.Blockchain = blockchain
nftBid.NFT.TokenID = tokenID
// First fetch biggest blocknumber<=@blockNumber for given nft.
subquery := fmt.Sprintf("select blocknumber from %s where nft_id='%s' and blocknumber<=%d order by blocknumber desc limit 1", nftbidTable, nftID, blockNumber)
// Next, restrict to largest blockPosition in this block.
returnVars := "bid_value,from_address,currency_symbol,currency_address,currency_decimals,blocknumber,blockposition,bid_time,tx_hash,marketplace"
query := fmt.Sprintf("select %s from %s where nft_id='%s' and blocknumber=(%s) order by blockposition desc limit 1", returnVars, nftbidTable, nftID, subquery)
var txHash sql.NullString
var bidTime sql.NullTime
var value string
err = rdb.postgresClient.QueryRow(context.Background(), query).Scan(
&value,
&nftBid.FromAddress,
&nftBid.CurrencySymbol,
&nftBid.CurrencyAddress,
&nftBid.CurrencyDecimals,
&nftBid.BlockNumber,
&nftBid.BlockPosition,
&bidTime,
&txHash,
&nftBid.Exchange,
)
if err != nil {
return
}
if bidTime.Valid {
nftBid.Timestamp = bidTime.Time
}
if txHash.Valid {
nftBid.TxHash = txHash.String
}
n := new(big.Int)
n, ok := n.SetString(value, 10)
if !ok {
return
}
nftBid.Value = n
return
}
// GetLastBlockNFTBid returns the last blocknumber that was scraped for bids in @nftclass.
func (rdb *RelDB) GetLastBlockNFTBid(nftclass dia.NFTClass) (blocknumber uint64, err error) {
query := fmt.Sprintf("SELECT b.blocknumber from %s b INNER JOIN %s n ON b.nft_id=nft_id INNER JOIN %s c ON(n.nftclass_id=c.nftclass_id AND c.address='%s' and c.blockchain='%s') ORDER BY b.blocknumber DESC LIMIT 1;", nftbidTable, nftTable, nftclassTable, nftclass.Address, nftclass.Blockchain)
err = rdb.postgresClient.QueryRow(context.Background(), query).Scan(&blocknumber)
if err != nil {
return
}
return
}
// GetLastBlockNFTOffer returns the last blocknumber that was scraped for offers in @nftclass.
func (rdb *RelDB) GetLastBlockNFTOffer(nftclass dia.NFTClass) (blocknumber uint64, err error) {
query := fmt.Sprintf("SELECT b.blocknumber from %s b INNER JOIN %s n ON b.nft_id=nft_id INNER JOIN %s c ON(n.nftclass_id=c.nftclass_id AND c.address='%s' and c.blockchain='%s') ORDER BY b.blocknumber DESC LIMIT 1;", nftofferTable, nftTable, nftclassTable, nftclass.Address, nftclass.Blockchain)
err = rdb.postgresClient.QueryRow(context.Background(), query).Scan(&blocknumber)
if err != nil {
return
}
return
}
// SetNFTOffer stores @offer in postgres.
func (rdb *RelDB) SetNFTOffer(offer dia.NFTOffer) error {
nftID, err := rdb.GetNFTID(offer.NFT.NFTClass.Address, offer.NFT.NFTClass.Blockchain, offer.NFT.TokenID)
if err != nil {
return err
}
bidVars := "nft_id,start_value,end_value,duration,from_address,auction_type,currency_symbol,currency_address,currency_decimals,blocknumber,blockposition,offer_time,tx_hash,marketplace"
query := fmt.Sprintf("insert into %s (%s) values ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14)", nftofferTable, bidVars)
_, err = rdb.postgresClient.Exec(
context.Background(),
query,
nftID,
offer.StartValue.String(),
offer.EndValue.String(),
offer.Duration,
offer.FromAddress,
offer.AuctionType,
offer.CurrencySymbol,
offer.CurrencyAddress,
offer.CurrencyDecimals,
offer.BlockNumber,
offer.BlockPosition,
offer.Timestamp,
offer.TxHash,
offer.Exchange,
)
if err != nil {
return err
}
return nil
}
// GetLastNFTOffer returns the last offer on the nft with @address and @tokenID.
// Here, 'last' refers to block number and block position smaller or equal
// (in the case of block number) than @blockNumber and @blockPosition resp.
func (rdb *RelDB) GetLastNFTOffer(address string, blockchain string, tokenID string, blockNumber uint64, blockPosition uint) (offer dia.NFTOffer, err error) {
nftID, err := rdb.GetNFTID(address, blockchain, tokenID)
if err != nil {
return
}
offer.NFT.NFTClass.Address = address
offer.NFT.NFTClass.Blockchain = blockchain
offer.NFT.TokenID = tokenID
// First fetch biggest blocknumber<=@blockNumber for given nft.
subquery := fmt.Sprintf("select blocknumber from %s where nft_id='%s' and blocknumber<=%d order by blocknumber desc limit 1", nftofferTable, nftID, blockNumber)
// Next, restrict to largest blockPosition in this block.
returnVars := "start_value,end_value,duration,from_address,auction_type,currency_symbol,currency_address,currency_decimals,blocknumber,blockposition,offer_time,tx_hash,marketplace"
query := fmt.Sprintf("select %s from %s where nft_id='%s' and blocknumber=(%s) order by blockposition desc limit 1", returnVars, nftofferTable, nftID, subquery)
var txHash sql.NullString
var offerTime sql.NullTime
var startValue string
var endValue string
err = rdb.postgresClient.QueryRow(context.Background(), query).Scan(
&startValue,
&endValue,
&offer.Duration,
&offer.FromAddress,
&offer.AuctionType,
&offer.CurrencySymbol,
&offer.CurrencyAddress,
&offer.CurrencyDecimals,
&offer.BlockNumber,
&offer.BlockPosition,
&offerTime,
&txHash,
&offer.Exchange,
)
if err != nil {
return
}
if offerTime.Valid {
offer.Timestamp = offerTime.Time
}
if txHash.Valid {
offer.TxHash = txHash.String
}
n := new(big.Int)
n, ok := n.SetString(startValue, 10)
if !ok {
return
}
offer.StartValue = n
n = new(big.Int)
n, ok = n.SetString(endValue, 10)
if !ok {
return
}
offer.EndValue = n
return
}