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DB.js
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/**
* Node Trinity source code
* See LICENCE file at the top of the source tree
*
* ******************************************
*
* DB.js
* Database access layer
*
* ******************************************
*
* Authors: K. Zhidanov, A. Prudanov, M. Vasil'ev
*/
const mysql = require('mysql');
const Utils = require('./Utils');
const {DatabaseError} = require('./errors');
Object.defineProperty(Array.prototype, 'chunk', {
value: function(chunkSize) {
var R = [];
for (var i = 0; i < this.length; i += chunkSize)
R.push(this.slice(i, i + chunkSize));
return R;
}
});
class DB {
constructor(config, app_config){
app_config.ORIGIN.hash = app_config.TRUNK;
app_config.ORIGIN.link = app_config.TRUNK;
app_config.ORIGIN.sprout = app_config.TRUNK;
app_config.ORIGIN.time = new Date(0) / 1000;
this.TRUNK = app_config.TRUNK;
this.ORIGIN = app_config.ORIGIN;
this.config = config;
this.app_config = app_config;
this.last_tail = null;
this.cached_tail = null;
this.config.connectionLimit = 10;
this.config.supportBigNumbers = true;
this.config.waitForConnections = true;
if(this.config.useNativeBigInt === false)
this.config.useNativeBigInt = false;
else
this.config.useNativeBigInt = true;
this.pool = mysql.createPool(this.config);
this.pool.on('connection', function (connection) {
console.debug(`Set DB connection params at threadId [${connection.threadId}]`);
connection.query("SET sql_mode=(SELECT REPLACE(@@sql_mode, 'ONLY_FULL_GROUP_BY', ''))");
connection.query("SET GLOBAL max_allowed_packet=134217728");
});
}
connection() {
return new Promise((resolve, reject) => {
this.pool.getConnection((err, connection) => {
if (err) reject(err);
const query = (sql, binding) => {
return new Promise((resolve, reject) => {
console.silly(`[${connection.threadId}] ${sql}`);
connection.query(sql, binding, (err, result) => {
if (err) reject(err);
resolve(result);
});
});
};
const release = () => {
return new Promise((resolve, reject) => {
if (err) reject(err);
resolve(connection.release());
});
};
resolve({connection, query, release});
});
});
};
async request(sql) {
let connection = await this.connection();
try {
return await connection.query(sql);
} catch (err) {
console.error(`Database error: ${err}`);
} finally {
await connection.release();
}
};
async transaction(sql) {
let connection = await this.connection();
try {
await connection.query("START TRANSACTION");
let querys = sql.split(';');
for (let query of querys) {
let r = query.trim();
if (r !== '')
await connection.query(r);
}
await connection.query("COMMIT");
return true;
} catch (err) {
console.error(`Transaction error: ${err}`);
if(connection.connection.state !== 'disconnected')
await connection.query("ROLLBACK");
return false;
} finally {
await connection.release();
}
}
put_origin() {
let sql = mysql.format(`INSERT INTO sprouts SET ?; INSERT INTO kblocks SET ?;`, [{sprout:this.TRUNK, fork:this.TRUNK, n:0, branch:this.TRUNK}, this.ORIGIN]);
this.transaction(sql);
};
async init_snapshot(snapshot, save_snapshot) {
let INSERT_CHUNK_SIZE = 100;
try {
console.info(`Setting snapshot: ${snapshot.hash}`);
//let locs = mysql.format(`LOCK TABLES sprouts WRITE, kblocks WRITE, mblocks WRITE, sblocks WRITE, ledger WRITE, tokens WRITE, poses WRITE, delegates WRITE, undelegates WRITE, eindex WRITE, tokens_index WRITE, poalist WRITE, stat WRITE, snapshots WRITE`);
let truncate = mysql.format(`
DELETE FROM ledger;
DELETE FROM tokens;
DELETE FROM poses;
DELETE FROM delegates;
DELETE FROM undelegates;
DELETE FROM tokens_index;
DELETE FROM dex_pools;
DELETE FROM farms;
DELETE FROM farmers`);
let sprouts = '';
let kblock = '';
if (snapshot.kblock) {
sprouts = mysql.format(`INSERT INTO sprouts SET ?`, [{
sprout: this.TRUNK,
fork: this.TRUNK,
n: snapshot.kblock.n,
branch: this.TRUNK
}]);
kblock = mysql.format(`INSERT INTO kblocks SET ?`, [snapshot.kblock]);
}
let ledger = [];
let ledger_chunks = snapshot.ledger.chunk(INSERT_CHUNK_SIZE);
ledger_chunks.forEach(chunk => {
ledger.push(mysql.format("INSERT INTO ledger (`id`, `amount`, `token`) VALUES ? ON DUPLICATE KEY UPDATE `amount` = VALUES(amount)", [chunk.map(a => [a.id, a.amount, a.token])]));
});
let tokens = [];
let tokens_chunks = snapshot.tokens.chunk(INSERT_CHUNK_SIZE);
tokens_chunks.forEach(chunk => {
tokens.push(mysql.format("INSERT INTO tokens (hash, owner, fee_type, fee_value, fee_min, ticker, decimals, total_supply, max_supply, block_reward, min_stake, caption, referrer_stake, ref_share, reissuable, minable) VALUES ? ", [chunk.map(a => [a.hash, a.owner, a.fee_type, a.fee_value, a.fee_min, a.ticker, a.decimals, a.total_supply, a.max_supply, a.block_reward, a.min_stake, a.caption, a.referrer_stake, a.ref_share, a.reissuable, a.minable])]));
});
let tokens_index = [];
if(snapshot.tokens_index && snapshot.tokens_index.length > 0) {
let tokens_index_chunks = snapshot.tokens_index.chunk(INSERT_CHUNK_SIZE);
tokens_index_chunks.forEach(chunk => {
tokens_index.push(mysql.format("INSERT INTO tokens_index (hash, txs_count) VALUES ? ", [chunk.map(a => [a.hash, a.txs_count])]));
});
}
let poses = [];
if (snapshot.poses && snapshot.poses.length > 0) {
let poses_chunks = snapshot.poses.chunk(INSERT_CHUNK_SIZE);
poses_chunks.forEach(chunk => {
poses.push(mysql.format("INSERT INTO poses (id, owner, fee, name) VALUES ? ", [chunk.map(pos => [pos.id, pos.owner, pos.fee, pos.name])]));
});
}
let delegates = [];
if (snapshot.delegates && snapshot.delegates.length > 0) {
let delegates_chunks = snapshot.delegates.chunk(INSERT_CHUNK_SIZE);
delegates_chunks.forEach(chunk => {
delegates.push(mysql.format("INSERT INTO delegates (pos_id, delegator, amount, reward) VALUES ? ", [chunk.map(del => [del.pos_id, del.delegator, del.amount, del.reward])]));
});
}
let undelegates = [];
if (snapshot.undelegates && snapshot.undelegates.length > 0) {
let undelegates_chunks = snapshot.undelegates.chunk(INSERT_CHUNK_SIZE);
undelegates_chunks.forEach(chunk => {
undelegates.push(mysql.format("INSERT INTO undelegates (id, delegator, pos_id, amount, height) VALUES ? ", [chunk.map(undel => [undel.id, undel.delegator, undel.pos_id, undel.amount, undel.height])]));
});
}
let dex_pools = [];
if (snapshot.dex_pools && snapshot.dex_pools.length > 0) {
let dex_pools_chunks = snapshot.dex_pools.chunk(INSERT_CHUNK_SIZE);
dex_pools_chunks.forEach(chunk => {
dex_pools.push(mysql.format("INSERT INTO dex_pools (pair_id, asset_1, volume_1, asset_2, volume_2, pool_fee, token_hash) VALUES ? ", [chunk.map(dex_pool => [dex_pool.pair_id, dex_pool.asset_1, dex_pool.volume_1, dex_pool.asset_2, dex_pool.volume_2 , dex_pool.pool_fee , dex_pool.token_hash])]));
});
}
let farms = [];
if (snapshot.farms && snapshot.farms.length > 0) {
let farms_chunks = snapshot.farms.chunk(INSERT_CHUNK_SIZE);
farms_chunks.forEach(chunk => {
farms.push(mysql.format("INSERT INTO farms (farm_id, stake_token, reward_token, emission, block_reward, level, total_stake, last_block, accumulator) VALUES ? ", [chunk.map(farm => [farm.farm_id, farm.stake_token, farm.reward_token, farm.emission, farm.block_reward, farm.level , farm.total_stake , farm.last_block, farm.accumulator])]));
});
}let farmers = [];
if (snapshot.farmers && snapshot.farmers.length > 0) {
let farmers_chunks = snapshot.farmers.chunk(INSERT_CHUNK_SIZE);
farmers_chunks.forEach(chunk => {
farmers.push(mysql.format("INSERT INTO farmers (farm_id, farmer_id, stake, level) VALUES ? ", [chunk.map(farmer => [farmer.farm_id, farmer.farmer_id, farmer.stake, farmer.level])]));
});
}
let cashier_ptr = mysql.format("INSERT INTO stat (`key`, `value`) VALUES ('cashier_ptr', ?) ON DUPLICATE KEY UPDATE `value` = VALUES(value)", snapshot.kblocks_hash);
//let unlock = mysql.format(`UNLOCK TABLES`);
let sql_put_snapshot = "";
if(save_snapshot){
delete snapshot.kblock;
sql_put_snapshot = mysql.format("INSERT INTO snapshots SET ?", [{hash:snapshot.hash, kblocks_hash:snapshot.kblocks_hash, data:JSON.stringify(snapshot)}]);
}
return this.transaction([truncate, sprouts, kblock, sql_put_snapshot, ledger.join(';'), tokens.join(';'), tokens_index.join(';'), poses.join(';'), delegates.join(';'), undelegates.join(';'), dex_pools.join(';'), farms.join(';'), farmers.join(';'), cashier_ptr].join(';'));
}catch (e) {
console.error(e);
return false;
}
};
async rollback_calculation(height){
let kblocks = await this.request(mysql.format('SELECT hash FROM kblocks WHERE n >= ? AND n <= (SELECT n FROM kblocks WHERE hash = (SELECT `value` FROM stat WHERE `key` = \'cashier_ptr\'))', [height]));
let kblock_hashes = kblocks.map(k => k.hash);
if (kblock_hashes.length > 0) {
/*
let mblocks = mysql.format(`UPDATE mblocks SET calculated = 0, indexed = 0 WHERE kblocks_hash in (SELECT hash FROM kblocks WHERE n >= ?) AND calculated = 1`,[height]);
let sblocks = mysql.format(`UPDATE sblocks SET calculated = 0, indexed = 0 WHERE kblocks_hash in (SELECT hash FROM kblocks WHERE n >= ?) AND calculated = 1`,[height]);
let mblocks_data = await this.request(mysql.format('SELECT hash FROM mblocks WHERE kblocks_hash in (SELECT hash FROM kblocks WHERE n >= ?)', [height]));
let mblock_hashes = mblocks_data.map(m => m.hash);
let transactions = '';
if (mblock_hashes.length > 0)
transactions = mysql.format(`UPDATE transactions SET status = null WHERE mblocks_hash in (SELECT hash FROM mblocks WHERE kblocks_hash in (SELECT hash FROM kblocks WHERE n >= ?) AND calculated = 1)`,[height]);
return this.transaction([mblocks, sblocks, transactions].join(';'));
*/
let mblocks = [];
let sblocks = [];
let transactions = [];
kblock_hashes.forEach(async hash => {
mblocks.push(mysql.format(`UPDATE mblocks SET calculated = 0, indexed = 0 WHERE kblocks_hash = ? AND calculated = 1`,[hash]));
sblocks.push(mysql.format(`UPDATE sblocks SET calculated = 0, indexed = 0 WHERE kblocks_hash = ? AND calculated = 1`,[hash]));
let mblocks_data = await this.request(mysql.format('SELECT hash FROM mblocks WHERE kblocks_hash = ? AND calculated = 1', [hash]));
let mblock_hashes = mblocks_data.map(m => m.hash);
if (mblock_hashes.length > 0)
transactions.push(mysql.format(`UPDATE transactions SET status = null WHERE mblocks_hash in (?)`,[mblock_hashes]));
});
return this.transaction([mblocks.join(';'), sblocks.join(';'), transactions.join(';')].join(';'));
}
return 0;
};
set_status_undelegated_tx(hash){
console.debug("set status 3 for undelegated tx ", hash);
let upd_mblock = mysql.format(`UPDATE mblocks SET included = 1 WHERE hash in (SELECT mblocks_hash FROM transactions WHERE hash = ?)`,[hash]);
let upd_tx = mysql.format(`UPDATE transactions SET status = 3 WHERE hash = ?`,[hash]);
return this.transaction([upd_mblock, upd_tx].join(';'));
};
async put_snapshot(snapshot, hash){
console.debug("putting snapshot", hash);
let exist_hash = await this.get_snapshot_hash(snapshot.kblocks_hash);
if(exist_hash === hash)
return true;
return this.transaction(mysql.format("INSERT INTO snapshots SET ?", [{hash, kblocks_hash:snapshot.kblocks_hash, data:JSON.stringify(snapshot)}]));
};
async put_tmp_snapshot(link_hash, snapshot, hash){
console.debug("put database temp snapshot", hash);
let remove_rec = mysql.format(`DELETE FROM tmp_snapshots WHERE kblocks_hash != ?`, link_hash);
let current_snapshot_sql = mysql.format("INSERT INTO tmp_snapshots SET ?", [{hash, kblocks_hash:snapshot.kblocks_hash, data:JSON.stringify(snapshot)}]);
return this.transaction([remove_rec, current_snapshot_sql].join(';'));
};
put_kblock(block){
console.debug("putting block", JSON.stringify(block));
let sql = mysql.format(`INSERT INTO kblocks (hash, link, n, sprout, time, publisher, nonce, m_root, reward) VALUES (?)`, [[block.hash, block.link, block.n, block.sprout, block.time, block.publisher, block.nonce, block.m_root, block.reward]]);
return this.transaction(sql);
};
async delete_kblocks_after(height) {
//block after which we delete the chain
let kblock = await this.request(mysql.format('SELECT hash FROM kblocks WHERE n = ?', [height]));
let fork_kblock_hash = kblock.map(k => k.hash);
let kblocks = await this.request(mysql.format('SELECT hash FROM kblocks WHERE n > ? ORDER BY n DESC', [height]));
let kblock_hashes_to_remove = kblocks.map(k => k.hash);
let kblock_hashes = kblock_hashes_to_remove.concat(fork_kblock_hash);
if (kblock_hashes.length > 0) {
//let locs = mysql.format(`LOCK TABLES kblocks WRITE, mblocks WRITE, sblocks WRITE, snapshots WRITE, transactions WRITE, eindex WRITE`);
let mblocks = await this.request(mysql.format('SELECT hash FROM mblocks WHERE kblocks_hash in (?)', [kblock_hashes]));
let mblock_hashes = mblocks.map(m => m.hash);
let delete_transactions = '';
if (mblock_hashes.length > 0) {
delete_transactions = mysql.format(`DELETE FROM transactions WHERE mblocks_hash in (?)`, [mblock_hashes]);
}
let delete_mblocks = mysql.format(`DELETE FROM mblocks WHERE kblocks_hash in (?)`, [kblock_hashes]);
let delete_sblocks = mysql.format(`DELETE FROM sblocks WHERE kblocks_hash in (?)`, [kblock_hashes]);
let delete_snapshots = mysql.format(`DELETE FROM snapshots WHERE kblocks_hash in (?)`, [kblock_hashes_to_remove]);
let delete_kblocks = [];
kblock_hashes_to_remove.forEach(function (item) {
delete_kblocks.push(mysql.format('DELETE FROM kblocks WHERE hash = ?', item));
});
//TODO: delete eindex
//let unlock = mysql.format(`UNLOCK TABLES`);
console.debug(`Delete kblocks: ${kblock_hashes}, mblocks: ${mblock_hashes}`);
return this.transaction([/*locs,*/ delete_transactions, delete_mblocks, delete_sblocks, delete_snapshots, delete_kblocks.join(';')/*, unlock*/].join(';'));
}
return 0;
}
async get_snapshot_hash(kblocks_hash){
let snapshot_hash = undefined;
let data = await this.request(mysql.format('SELECT hash FROM snapshots WHERE ? ORDER BY hash', [{kblocks_hash}]));
if(data.length !== 0){
snapshot_hash = data[0].hash;
}
return snapshot_hash;
}
async get_tmp_snapshot_hash(kblocks_hash){
let snapshot_hash = undefined;
let data = await this.request(mysql.format('SELECT hash FROM tmp_snapshots WHERE ? ORDER BY hash', [{kblocks_hash}]));
if(data.length !== 0){
snapshot_hash = data[0].hash;
}
return snapshot_hash;
}
async get_snapshot_before(height){
let n = Math.floor(height/this.app_config.snapshot_interval)*this.app_config.snapshot_interval;
return (await this.request(mysql.format(`SELECT CAST(? AS SIGNED) as n, snapshots.hash, snapshots.kblocks_hash, OCTET_LENGTH(snapshots.data) as size FROM snapshots
where kblocks_hash = (select hash from kblocks where n = ?)`, [n, n])))[0];
}
async get_snapshot(hash){
return (await this.request(mysql.format(`SELECT snapshots.hash, snapshots.kblocks_hash, snapshots.data FROM snapshots
where snapshots.hash = ?`, [hash])))[0];
}
async get_tmp_snapshot(kblock_hash){
return (await this.request(mysql.format(`SELECT hash, kblocks_hash, data FROM tmp_snapshots
where kblocks_hash = ?`, [kblock_hash])))[0];
}
async get_snapshot_chunk(hash, chunk_no, byte_size){
let start_pos = chunk_no * byte_size + 1;
let sql = mysql.format(`SELECT snapshots.hash, SUBSTRING(snapshots.data, ?, ?) as chunk
FROM trinity.snapshots
where hash = ? limit 1;`, [start_pos, byte_size, hash]);
return (await this.request(sql))[0];
}
get_included_microblocks(kblocks_hash){
return this.request(mysql.format('SELECT * FROM mblocks WHERE ? AND included = 1 ORDER BY hash', [{kblocks_hash}]));
}
get_included_statblocks(kblocks_hash){
return this.request(mysql.format('SELECT * FROM sblocks WHERE ? AND included = 1 ORDER BY hash', [{kblocks_hash}]));
}
get_microblocks(kblocks_hash){
return this.request(mysql.format('SELECT * FROM mblocks WHERE ?', [{kblocks_hash}]));
}
get_statblocks(kblocks_hash){
return this.request(mysql.format('SELECT * FROM sblocks WHERE ?', [{kblocks_hash}]));
}
async get_microblocks_full(hash, token){
let mblocks = [];
if(token)
mblocks = await this.request(mysql.format("SELECT `publisher`, `referrer`, `sign`, `leader_sign`, `hash`, `kblocks_hash`, `reward`, `nonce`, `token` FROM mblocks WHERE `kblocks_hash`=? and `token`=?", [hash, token]));
else
mblocks = await this.request(mysql.format("SELECT `publisher`, `referrer`, `sign`, `leader_sign`, `hash`, `kblocks_hash`, `reward`, `nonce`, `token` FROM mblocks WHERE `kblocks_hash`=?", hash));
for (let i = 0; i < mblocks.length; i++) {
mblocks[i].leader_sign = JSON.parse(mblocks[i].leader_sign);
mblocks[i].txs = await this.request(mysql.format('SELECT `hash`, `from`, `to`, `amount`, `nonce`, `sign`, `ticker`, `data` FROM transactions WHERE mblocks_hash = ? ORDER BY transactions.hash;', mblocks[i].hash));
//TODO: удалять хеш (чтобы не забыть пересчитать при получении)
//delete mblocks[i].hash;
}
return mblocks;
}
async get_avg_diff_kblock(kblock_hash, target){
let sql = mysql.format(`SELECT
FLOOR(AVG(target_diff)) AS avg_diff
FROM kblocks
WHERE n > (SELECT n-? FROM kblocks WHERE hash = ?) and n <= (SELECT n FROM kblocks WHERE hash = ?)`, [target,kblock_hash,kblock_hash])
let res = await this.request(sql);
return res[0];
}
async get_time_delta_kblock(kblock_hash, target){
let sql = mysql.format(`SELECT
t2.time - t1.time AS time
FROM kblocks t1
INNER JOIN kblocks t2 ON t1.n = (t2.n - ?) where t2.hash = ?`, [target, kblock_hash])
let res = await this.request(sql);
return res[0];
}
async get_iterm(kblock_hash, ki, period) {
let sql = mysql.format(`SELECT FLOOR(sum(?*(t1.time - t2.time)/100)) AS iterm FROM
(SELECT n, time
FROM kblocks,
(SELECT @n:=n FROM kblocks WHERE hash = ?) AS N
WHERE n > @n-? and n <= @n) as t1
LEFT JOIN kblocks t2 ON t2.n = (t1.n - ?) `, [ki,kblock_hash, period, period]);
let res = await this.request(sql);
return res[0];
}
async get_mining_tkn_owners(limit, ignore_owners, min_stake) {
let sql = mysql.format(`SELECT id FROM (
SELECT DISTINCT id, amount FROM tokens
LEFT JOIN ledger ON tokens.owner = ledger.id AND ledger.token = ?
WHERE minable = true
AND id NOT IN (?)
AND amount > ?
ORDER BY amount DESC LIMIT ?) as SUB_T`, [Utils.ENQ_TOKEN_NAME, ignore_owners, min_stake, limit]);
return this.request(sql);
}
async get_used_slots(kblock_hash) {
let sql = mysql.format(`SELECT owner AS id, count(*) AS count FROM mblocks
LEFT JOIN tokens ON tokens.hash = mblocks.token
WHERE kblocks_hash = ?
GROUP BY owner;`, [kblock_hash]);
return this.request(sql);
}
async get_txs_awaiting(mblock_hashes){
return (await this.request(mysql.format('SELECT COUNT(*) as txs_awaiting FROM transactions LEFT JOIN mblocks ON mblocks.hash = transactions.mblocks_hash WHERE mblocks.hash in (?);', [mblock_hashes])))[0];
}
async get_new_microblocks(kblocks_hash, limit){
let txs;
let mblocks = await this.request(mysql.format('SELECT * FROM mblocks WHERE ? AND ? AND ? ORDER BY mblocks.hash ASC LIMIT ?', [{kblocks_hash}, {included:1}, {calculated:0}, limit || 65535]));
if (mblocks.length > 0) {
txs = await this.request(mysql.format('SELECT * FROM transactions WHERE mblocks_hash IN (?) ORDER BY `mblocks_hash`, `hash` ASC;', [mblocks.map(m => m.hash)]));
}
return {mblocks, txs};
}
async get_exist_microblocks(hashes){
let exists = await this.request(mysql.format('SELECT hash FROM mblocks WHERE hash in (?)', [hashes]));
return exists;
}
async get_exist_statblocks(hashes){
let exists = await this.request(mysql.format('SELECT hash FROM sblocks WHERE hash in (?)', [hashes]));
return exists;
}
async get_new_statblocks(kblocks_hash, limit){
let sblocks = await this.request(mysql.format('SELECT * FROM sblocks WHERE ? AND ? AND ? ORDER BY sblocks.hash ASC LIMIT ?', [{kblocks_hash}, {included:1}, {calculated:0}, limit || 65535]));
return sblocks;
}
async get_statblocks_publishers(kblocks_hash){
let accounts = await this.request(mysql.format('SELECT publisher FROM sblocks WHERE ? AND ? ORDER BY sblocks.hash', [{kblocks_hash}, {included:1}]));
return accounts;
}
async get_not_indexed_microblocks(kblocks_hash, limit){
let txs;
let mblocks = await this.request(mysql.format('SELECT * FROM mblocks WHERE ? AND ? AND ? AND ? ORDER BY mblocks.hash ASC LIMIT ?', [{kblocks_hash}, {included:1}, {calculated:1}, {indexed:0}, limit || 65535]));
if (mblocks.length > 0) {
txs = await this.request(mysql.format('SELECT * FROM transactions WHERE mblocks_hash IN (?) ORDER BY `mblocks_hash`, `hash` ASC;', [mblocks.map(m => m.hash)]));
}
return {mblocks, txs};
}
async get_not_indexed_statblocks(kblocks_hash, limit){
let sblocks = await this.request(mysql.format('SELECT * FROM sblocks WHERE ? AND ? AND ? AND ? ORDER BY sblocks.hash ASC LIMIT ?', [{kblocks_hash}, {included:1}, {calculated:1}, {indexed:0}, limit || 65535]));
return sblocks;
}
put_microblocks(mblocks) {
let sql_m = [];
let sql_tx = [];
console.trace(`putting mblocks hashes: ${JSON.stringify(mblocks.map(m => m.hash))}`);
let i = 0;
mblocks.forEach((m) => {
i++;
if (m.txs === undefined || m.txs.length === 0) {
console.warn(`ignore empty microblock ${m.hash}`);
return;
}
sql_m.push(mysql.format('INSERT IGNORE INTO mblocks (`hash`, `kblocks_hash`, `publisher`, `reward`, `sign`, `leader_sign`, `referrer`, `nonce`, `token`) VALUES (?)', [[m.hash, m.kblocks_hash, m.publisher, m.reward, m.sign, JSON.stringify(m.leader_sign), m.referrer, m.nonce, m.token]]));
sql_tx.push(mysql.format('INSERT IGNORE INTO transactions (`hash`, `from`, `to`, `amount`, `mblocks_hash`, `nonce`, `sign`, `ticker`, `data`) VALUES ?', [m.txs.map(tx => [tx.hash, tx.from, tx.to, tx.amount, m.hash, tx.nonce, tx.sign, tx.ticker, tx.data])]));
});
return this.transaction([sql_m.join(";"), sql_tx.join(";")].join(";"));
}
put_microblocks_calculated(mblocks) {
let sql_m = [];
let sql_tx = [];
console.trace(`putting mblocks hashes: ${JSON.stringify(mblocks.map(m => m.hash))}`);
let i = 0;
mblocks.forEach((m) => {
i++;
if (m.txs === undefined || m.txs.length === 0) {
console.warn(`ignore empty microblock ${m.hash}`);
return;
}
sql_m.push(mysql.format('INSERT IGNORE INTO mblocks (`hash`, `kblocks_hash`, `publisher`, `reward`, `sign`, `leader_sign`, `referrer`, `nonce`, `token`, `included`, `calculated`) VALUES (?)', [[m.hash, m.kblocks_hash, m.publisher, m.reward, m.sign, JSON.stringify(m.leader_sign), m.referrer, m.nonce, m.token, 1, 1]]));
sql_tx.push(mysql.format('INSERT IGNORE INTO transactions (`hash`, `from`, `to`, `amount`, `mblocks_hash`, `nonce`, `sign`, `ticker`, `data`) VALUES ?', [m.txs.map(tx => [tx.hash, tx.from, tx.to, tx.amount, m.hash, tx.nonce, tx.sign, tx.ticker, tx.data])]));
});
return this.transaction([sql_m.join(";"), sql_tx.join(";")].join(";"));
}
put_statblocks(sblocks){
let sql_s = [];
console.trace(`putting sblocks ${JSON.stringify(sblocks.map(s => s.hash))}`);
sblocks.forEach((s) => {
sql_s.push(mysql.format('INSERT IGNORE INTO sblocks (`hash`, `kblocks_hash`, `publisher`, `sign`, `bulletin`) VALUES (?)', [[s.hash, s.kblocks_hash, s.publisher, s.sign, s.bulletin]]));
});
return this.transaction(sql_s.join(";"));
}
async finalize_macroblock(kblock, mblocks, sblocks){
console.silly("macroblock data", JSON.stringify(kblock), JSON.stringify(mblocks));
console.debug(`finalizing macroblock ${kblock.hash} stat: mblocks.length = ${mblocks.length}`);
console.debug(`macroblock ${kblock.hash} mblocks: `, mblocks.map(m => m.hash));
console.debug(`macroblock ${kblock.hash} sblocks: `, sblocks.map(s => s.hash));
let exist_mblocks_cnt = (await this.request(mysql.format('SELECT count(*) as cnt FROM mblocks WHERE `hash` in (?)', [mblocks.map(b => [b.hash])])))[0].cnt;
let exist_sblocks_cnt = (await this.request(mysql.format('SELECT count(*) as cnt FROM sblocks WHERE `hash` in (?)', [sblocks.map(b => [b.hash])])))[0].cnt;
if(Number(exist_mblocks_cnt) !== mblocks.length || Number(exist_sblocks_cnt) !== sblocks.length) {
console.warn(`Macroblock is not complete.
Exist mblocks count ${exist_mblocks_cnt}, finalize count ${mblocks.length}.
Exist sblocks count ${exist_sblocks_cnt}, finalize count ${sblocks.length}.`);
return false;
}
let sql_m = [];
let sql_s = [];
if (mblocks.length > 0) {
mblocks.forEach(m => {
sql_m.push(mysql.format('UPDATE mblocks SET `included`= 1 WHERE `hash` = ?', [m.hash]));
});
}
if (sblocks.length > 0) {
sblocks.forEach(s => {
sql_s.push(mysql.format('UPDATE sblocks SET `included`= 1 WHERE `hash` = ?', [s.hash]));
});
}
let sql_k = mysql.format(`INSERT INTO kblocks (hash, link, n, sprout, time, publisher, reward, nonce, m_root, leader_sign, target_diff) SELECT ?, ?, n + 1, sprout, ?, ?, ?, ?, ?, ?, ? FROM kblocks WHERE hash = ?`, [kblock.hash, kblock.link, kblock.time, kblock.publisher, kblock.reward, kblock.nonce, kblock.m_root, JSON.stringify(kblock.leader_sign), kblock.target_diff, kblock.link]);
console.debug(`try insert new kblock ${sql_k}`);
return this.transaction([sql_s.join(";"), sql_m.join(";"), sql_k].join(";"));
}
create_sprout(block){
let sql_with_sprout = mysql.format(`
INSERT INTO sprouts (sprout, fork, n, branch) SELECT ?, ?, n, sprout FROM kblocks WHERE hash = ?;
INSERT INTO kblocks (hash, link, n, sprout, time, publisher, nonce, m_root, reward)
SELECT ?, ?, n + 1, ?, ?, ?, ?, ?, ? FROM kblocks WHERE hash = ?;`, [block.hash, block.link, block.link,
block.hash, block.link, block.hash, block.time, block.publisher, block.nonce, block.m_root, block.reward, block.link]);
return this.transaction(sql_with_sprout);
};
async create_snapshot(hash){
let snapshot = {};
snapshot.kblocks_hash = hash;
snapshot.ledger = await this.request(mysql.format("SELECT id, amount, token FROM ledger ORDER BY id, token"));
snapshot.tokens = await this.request(mysql.format("SELECT * FROM tokens ORDER BY hash"));
snapshot.poses = await this.request(mysql.format("SELECT id, owner, fee, name FROM poses ORDER BY id"));
snapshot.delegates = await this.request(mysql.format("SELECT pos_id, delegator, amount, reward FROM delegates ORDER BY pos_id, delegator"));
snapshot.dex_pools = [];
snapshot.farms = [];
snapshot.farmers = [];
let kblock = await this.get_kblock(hash);
if(kblock && kblock.length > 0 && kblock[0].n >= this.app_config.FORKS.fork_block_002){
snapshot.dex_pools = await this.request(mysql.format("SELECT pair_id, asset_1, volume_1, asset_2, volume_2, pool_fee, token_hash FROM dex_pools ORDER BY pair_id"));
snapshot.farms = await this.request(mysql.format("SELECT farm_id, stake_token, reward_token, emission, block_reward, level, total_stake, last_block, accumulator FROM farms ORDER BY farm_id"));
snapshot.farmers = await this.request(mysql.format("SELECT farm_id, farmer_id, stake, level FROM farmers ORDER BY farmer_id"));
snapshot.undelegates = await this.request(mysql.format("SELECT id, delegator, pos_id, amount, height FROM undelegates WHERE amount > 0 ORDER BY id"));
}else{
snapshot.undelegates = await this.request(mysql.format("SELECT id, pos_id, amount, height FROM undelegates ORDER BY id"));
}
return snapshot;
};
async get_chain_start_macroblock(){
//get first macroblock of the chain
let block = await this.request(mysql.format(`SELECT sprout, n, kblocks.hash, time, publisher, nonce, link, m_root, leader_sign, reward FROM kblocks
LEFT JOIN snapshots ON kblocks.hash = snapshots.kblocks_hash WHERE kblocks.hash = link AND snapshots.hash IS NOT NULL ORDER BY n DESC LIMIT 1;`));
if(block[0] !== undefined)
block[0].leader_sign = JSON.parse(block[0].leader_sign);
return block[0];
}
async peek_tail(timeout){
let now = new Date();
let span = now - this.last_tail;
if ((span > timeout) || (this.cached_tail === null) || (timeout === undefined)) {
let tail = await this.request(mysql.format("SELECT sprout, n, hash, time, publisher, nonce, link, m_root, leader_sign, reward FROM kblocks WHERE hash != link or n = 0 ORDER BY n DESC LIMIT 1"));
if (tail.length === 1)
tail = tail[0];
else
return;
tail.leader_sign = JSON.parse(tail.leader_sign);
this.cached_tail = tail;
this.last_tail = now;
return tail;
} else {
return this.cached_tail;
}
};
async init_database() {
console.info("Initializing database...");
let snapshot = Utils.load_snapshot_from_file(this.app_config.snapshot_file);
//TODO: validation snapshot
if (snapshot === undefined) {
console.error(`Snapshot is undefined`);
return;
}
snapshot.hash = Utils.hash_snapshot(snapshot, snapshot.kblock.n);
let init_result = await this.init_snapshot(snapshot, true);
if (!init_result) {
console.error(`Failed initialize Database.`);
return;
}
console.info("Database initialized");
}
async peek_range(min, max) {
let data = await this.request(mysql.format("SELECT n, hash, time, publisher, nonce, link, m_root, leader_sign FROM kblocks WHERE n >= ? AND n <= ? ORDER BY n ASC", [min, max]));
for (let i = 0; i < data.length; i++) {
data[i].leader_sign = JSON.parse(data[i].leader_sign);
}
return data;
}
async get_page(page_num, page_size){
let count = (await this.request(mysql.format("SELECT count(*) AS cnt FROM kblocks WHERE kblocks.n <= (SELECT n-1 FROM kblocks WHERE hash = (SELECT `value` FROM stat WHERE `key` = 'cashier_ptr'))")))[0].cnt;
let kblocks = await this.request(mysql.format('SELECT kblocks.*, count(transactions.hash) as tx_count FROM kblocks LEFT JOIN mblocks ON kblocks.hash = mblocks.kblocks_hash LEFT JOIN transactions ON mblocks.hash = transactions.mblocks_hash AND (transactions.status = 1 OR transactions.status = 2 OR transactions.status = 3) WHERE `n` < ? AND `n` >= ? GROUP BY kblocks.hash ORDER BY `n` DESC',
[count - page_size * page_num, count - page_size * page_num - page_size] ));
return {count : Math.ceil(count / page_size), kblocks};
}
// TODO: for Explorer can be optimized for only hashes
async get_lastblocks(count){
let blocks = await this.request(mysql.format("SELECT * FROM kblocks WHERE kblocks.n <= (SELECT n-1 FROM kblocks WHERE hash = (SELECT `value` FROM stat WHERE `key` = 'cashier_ptr')) ORDER BY n DESC LIMIT ?", count));
return blocks;
}
async get_difficulty(limit){
let data = await this.request(mysql.format('SELECT AVG(target_diff) AS target_diff FROM (SELECT target_diff FROM kblocks ORDER BY n DESC LIMIT ?) T ', limit));
if(data.length === 1)
return {difficulty: Utils.understandable_difficulty(data[0].target_diff).toFixed(2)};
else
return {difficulty: -1};
}
// TODO: for Explorer can be optimized for only hashes
async get_lasttxs(count){
let txs = await this.request(mysql.format("SELECT transactions.* FROM kblocks, mblocks, transactions WHERE kblocks.hash = mblocks.kblocks_hash AND mblocks.hash = transactions.mblocks_hash and kblocks.n = (select n-1 from kblocks where hash = (select `value` from stat where `key` = 'cashier_ptr')) LIMIT ?", count));
return {txs};
}
async get_successful_txs_by_height(height) {
let error = {code: 0, msg: 'successfully'};
let txs = [];
try {
let status = (await this.request(mysql.format(`SELECT IFNULL(sum(IFNULL(included,0)),-1) AS included, IFNULL(sum(IFNULL(calculated,0)),-1) AS calculated FROM mblocks inner join kblocks ON kblocks.hash = mblocks.kblocks_hash WHERE n = ?`, height)))[0];
if (status.included <= 0) {
error.code = 1;
error.msg = 'block not found';
return;
}
if (status.calculated <= 0) {
error.code = 2;
error.msg = 'block not calculated';
return;
}
txs = await this.request(mysql.format(`SELECT transactions.* FROM transactions
LEFT JOIN mblocks ON mblocks.hash = transactions.mblocks_hash AND mblocks.included = 1 AND calculated = 1
LEFT JOIN kblocks ON kblocks.hash = mblocks.kblocks_hash WHERE status = 3 AND kblocks.n = ?`, height));
}
catch(e){
console.error(e);
error = {code: 3, msg: 'exaption'};
}
finally {
return {error, data: {txs}};
}
}
async get_tx_count_ranged(limit){
let res = await this.request(mysql.format(`SELECT count(*) as count FROM transactions as T
left join mblocks as M ON T.mblocks_hash = M.hash
left join kblocks as K ON M.kblocks_hash = K.hash
WHERE (K.n) >= ((SELECT n FROM kblocks WHERE hash = (SELECT stat.value FROM stat WHERE stat.key = 'cashier_ptr')) - ?)
AND T.status = 3`, limit));
return res;
}
async get_tps(interval){
let tps = (await this.request(mysql.format('SELECT ROUND(count(*)/?) AS tps FROM transactions, kblocks, mblocks WHERE transactions.mblocks_hash = mblocks.hash AND mblocks.kblocks_hash = kblocks.hash AND kblocks.time > unix_timestamp() - ? ORDER BY kblocks.n DESC', [interval, interval])))[0];
return tps;
}
async get_poa_reward(){
let reward = (await this.request(mysql.format('SELECT SUM(mblocks.reward) AS reward FROM mblocks LEFT JOIN kblocks ON kblocks.hash = mblocks.kblocks_hash WHERE mblocks.included = 1 AND kblocks.time > UNIX_TIMESTAMP() - 24*60*60 AND mblocks.token = ?',[Utils.ENQ_TOKEN_NAME])))[0];
return reward;
}
async get_pow_reward(){
let reward = (await this.request(mysql.format('SELECT SUM(reward) AS reward FROM kblocks WHERE kblocks.time > UNIX_TIMESTAMP() - 24*60*60')))[0];
return reward;
}
async get_pos_reward(){
let reward = (await this.request(mysql.format('SELECT SUM(sblocks.reward) AS reward FROM sblocks LEFT JOIN kblocks ON kblocks.hash = sblocks.kblocks_hash WHERE kblocks.time > UNIX_TIMESTAMP() - 24*60*60')))[0];
return reward;
}
async get_mblock_data(hash){
let transactions = await this.request(mysql.format('SELECT transactions.* FROM mblocks, transactions WHERE `calculated` > 0 AND mblocks.hash = transactions.mblocks_hash AND mblocks.hash = ?', hash));
let header = (await this.request(mysql.format("SELECT kblocks_hash, mblocks.publisher as publisher, mblocks.referrer as referrer, mblocks.hash as mblocks_hash, mblocks.reward as reward, mblocks.nonce, mblocks.token FROM mblocks, kblocks WHERE `calculated` > 0 AND kblocks.hash = mblocks.kblocks_hash AND mblocks.hash=?", hash)))[0];
return {transactions, header};
}
async get_sblock_data(hash){
let header = (await this.request(mysql.format("SELECT kblocks_hash, sblocks.publisher as publisher, sblocks.hash as sblocks_hash, sblocks.reward as reward FROM sblocks, kblocks WHERE `calculated` > 0 AND kblocks.hash = sblocks.kblocks_hash AND sblocks.hash=?", hash)))[0];
return {header};
}
async get_pos_statuses(data){
let res = await this.request(mysql.format(`SELECT S.publisher AS pos_id, count(S.kblocks_hash) AS uptime FROM sblocks AS S
INNER JOIN kblocks AS K ON S.kblocks_hash = K.hash
AND K.n > ? AND S.reward IS NOT NULL
GROUP BY S.publisher`, data.n));
return res;
}
async update_pos_statuses(data) {
let poses = [];
let clear = mysql.format(`UPDATE IGNORE poses SET uptime = 0 WHERE uptime != 0`);
for (let pos of data) {
poses.push(mysql.format(`UPDATE poses SET uptime = ? WHERE id = ?`, [pos.uptime, pos.pos_id]));
}
return this.transaction([clear, poses.join(';')].join(';'));
}
async update_total_supply(amount, token){
let res = await this.request(mysql.format(`UPDATE tokens SET total_supply = ? WHERE hash = ?`, [amount, token]));
return res;
}
async get_macroblock_header(hash){
let kblock = (await this.request(mysql.format('SELECT * FROM kblocks WHERE `hash` = ?', hash)))[0];
let mblocks = await this.request(mysql.format('SELECT mblocks.hash, count(*) as tx_cnt FROM kblocks, mblocks, transactions WHERE `calculated` > 0 AND kblocks.hash = mblocks.kblocks_hash AND mblocks.hash = transactions.mblocks_hash AND kblocks.hash = ? GROUP BY `hash`;', hash));
let sblocks = await this.request(mysql.format('SELECT sblocks.hash FROM kblocks, sblocks WHERE `calculated` > 0 AND kblocks.hash = sblocks.kblocks_hash AND kblocks.hash = ? GROUP BY `hash`;', hash));
let snapshot = (await this.request(mysql.format('SELECT hash FROM snapshots WHERE `kblocks_hash` = ?', hash)));
let snapshot_hash = null;
if(snapshot.length > 0)
snapshot_hash = snapshot[0].hash;
return {kblock, mblocks, sblocks, snapshot_hash};
}
async get_macroblock_header_by_height(height){
let kblock = (await this.request(mysql.format('SELECT * FROM kblocks WHERE `n` = ?', height)))[0];
let mblocks = await this.request(mysql.format('SELECT mblocks.hash, count(*) as tx_cnt FROM kblocks, mblocks, transactions WHERE `calculated` > 0 AND kblocks.hash = mblocks.kblocks_hash AND mblocks.hash = transactions.mblocks_hash AND kblocks.hash = ? GROUP BY `hash`;', kblock.hash));
let sblocks = await this.request(mysql.format('SELECT sblocks.hash FROM kblocks, sblocks WHERE `calculated` > 0 AND kblocks.hash = sblocks.kblocks_hash AND kblocks.hash = ? GROUP BY `hash`;', kblock.hash));
return {kblock, mblocks, sblocks};
}
async get_macroblock(hash){
console.trace(`get_macroblock ${hash}`);
//TODO разнести функции получения макроблока для эксплорера и для синка. В версии синка не получать реварды и хеши
let kblock = (await this.request(mysql.format("SELECT `publisher`, `time`, `nonce`, `link`, `n`, `m_root`, `leader_sign` FROM kblocks WHERE `hash`=?", hash)))[0];
let mblocks = await this.request(mysql.format("SELECT `publisher`, `referrer`, `sign`, `leader_sign`, `hash`, `kblocks_hash`, `nonce`, `token` FROM mblocks WHERE `included` = 1 AND `kblocks_hash`=?", hash));
let sblocks = await this.request(mysql.format("SELECT `publisher`, `sign`, `hash`, `kblocks_hash`, `bulletin` FROM sblocks WHERE `included` = 1 AND `kblocks_hash`=?", hash));
if(kblock !== undefined)
kblock.leader_sign = JSON.parse(kblock.leader_sign);
for (let i = 0; i < mblocks.length; i++) {
mblocks[i].leader_sign = JSON.parse(mblocks[i].leader_sign);
mblocks[i].txs = await this.request(mysql.format('SELECT `hash`, `from`, `to`, `amount`, `nonce`, `sign`, `ticker`, `data` FROM transactions WHERE mblocks_hash = ? ORDER BY transactions.hash;', mblocks[i].hash));
//TODO: удалять хеш (чтобы не забыть пересчитать при получении)
//delete mblocks[i].hash;
}
return {kblock, mblocks, sblocks};
}
async get_mblock(hash){
return await this.request(mysql.format('SELECT * FROM mblocks WHERE `calculated` > 0 AND `hash` = ?', hash));
}
async get_referrer_stake(){
let stats = (await this.request(mysql.format("SELECT `key`, `value` FROM stat WHERE `key` IN (?);", [['referrer_stake']])));
stats = stats.reduce((a,c) => {
a[c.key] = c.value;
return a;
}, {});
return stats;
}
async get_total_pos_stake(){
let stats = (await this.request(mysql.format("SELECT `key`, `value` FROM stat WHERE `key` IN (?);", [['total_daily_pos_stake']])));
stats = stats.reduce((a,c) => {
a[c.key] = c.value;
return a;
}, {});
return stats;
}
async get_mblocks_info(offset, max){
let info = await this.request(mysql.format(`SELECT kblocks.hash AS k_hash, mblocks.hash AS m_hash, mblocks.publisher AS publisher, mblocks.reward AS reward, time AS k_time, n AS height
FROM kblocks
LEFT JOIN mblocks ON mblocks.kblocks_hash = kblocks.hash
WHERE kblocks.n >= ? AND kblocks.n <= ? AND included = 1
ORDER BY n;`, [offset, max]));
return info;
}
async get_mblocks_height(){
let block = await this.request(mysql.format('SELECT n as height FROM kblocks ORDER BY n DESC LIMIT 1'));
return block[0];
}
async count_total_daily_stake(){
let stake = (await this.request(mysql.format('SELECT sum(ledger.amount) AS stake FROM (SELECT DISTINCT mblocks.publisher AS pub FROM kblocks LEFT JOIN mblocks ON mblocks.kblocks_hash = kblocks.hash WHERE kblocks.time > unix_timestamp() - 24*60*60) t LEFT JOIN ledger on ledger.id = t.pub WHERE token = ?', Utils.ENQ_TOKEN_NAME)))[0];
return stake;
}
async count_total_daily_pos_stake(){
let stake = (await this.request(mysql.format('SELECT sum(ledger.amount) AS stake FROM (SELECT DISTINCT sblocks.publisher AS pub FROM kblocks LEFT JOIN sblocks ON sblocks.kblocks_hash = kblocks.hash WHERE kblocks.time > unix_timestamp() - 24*60*60) t LEFT JOIN ledger on ledger.id = t.pub;')))[0];
return stake;
}
async get_roi(token){
let data = (await this.request(mysql.format("SELECT token, calc_stakes, calc_rois FROM rois WHERE token = ?;", token)))[0];
if(data === undefined){
console.info(`token ${token} not found`);
return [];
}
let roi = [];
if (data.calc_stakes === null || data.calc_rois === null){
console.info(`calc_stakes or calc_rois is not defined`);
} else {
let stakes = data.calc_stakes.split(';');
let rois = data.calc_rois.split(';');
if (stakes.length !== rois.length){
console.warn(`calc_stakes and calc_rois length do not match`);
} else {
for (let i = 0; i < stakes.length; i++){
roi.push({stake:parseFloat(stakes[i]), roi:parseFloat(rois[i])});
}
}
}
return roi;
}
async get_staking_poa_count(){
let count = (await this.request(mysql.format('SELECT count(*) as total FROM ledger WHERE amount >= ? AND `token` = ?', [this.app_config.stake_limits.min_stake, Utils.ENQ_TOKEN_NAME])))[0];
return count;
}
async get_ver(){
let stats = (await this.request(mysql.format("SELECT `key`, `value` FROM stat WHERE `key` IN (?);", [['minApkVersion', 'maxApkVersion', 'apkUrl']])));
stats = stats.reduce((a,c) => {
a[c.key] = c.value;
return a;
}, {});
return stats;
}
async get_pending_size()
{
let size = (await this.request(mysql.format("SELECT Count(*) as `count` FROM pending ;")));
return size;
}
async get_pending()
{
let res = (await this.request(mysql.format("SELECT * FROM pending")));
return res;
}
async pending_check(hash)
{
let res = (await this.request(mysql.format(`SELECT 1 FROM pending WHERE hash = ? LIMIT 1`, hash)));
return res.length !== 0;
}
async get_pending_by_hash(hash)
{
let size = (await this.request(mysql.format("SELECT `hash`, timeadded, amount, `from`, `to`, nonce, ticker, `data`, sign FROM pending WHERE hash = ?;", hash)));
return size;
}
async get_pending_by_id(options)
{
let sql;
if(options.filter === 'from')
sql = mysql.format("SELECT `hash`, timeadded, amount, `from`, `to`, nonce, ticker, `data`, sign FROM pending WHERE `from` = ? ", options.id);
else if(options.filter === 'to')
sql = mysql.format("SELECT `hash`, timeadded, amount, `from`, `to`, nonce, ticker, `data`, sign FROM pending WHERE `to` = ? ", options.id);
else
sql = mysql.format("SELECT `hash`, timeadded, amount, `from`, `to`, nonce, ticker, `data`, sign FROM pending WHERE `from` = ? OR `to` = ?;", [options.id, options.id]);
let res = await this.request(sql);
return res;
}
async get_stats(values){
//let stats = (await this.request(mysql.format("SELECT `key`, `value` FROM stat WHERE `key` IN (?) AND (unix_timestamp() - `calctime` <= `lifetime` OR `lifetime` = 0);", [values])));
let stats = (await this.request(mysql.format("SELECT `key`, `value`, `calctime`, `lifetime` FROM stat WHERE `key` IN (?);", [values])));
/*
stats = stats.reduce((a,c) => {
a[c.key] = c.value;
a[c.key] = c.prev_value;
a[c.key] = c.value;
return a;
}, {});
*/
return stats;
}
async get_stat(){
let stats = await this.request(mysql.format("SELECT * FROM stat"));
return stats;
}
async update_stats(values){
let sql = [];
for (let prop in values){
sql.push(mysql.format('INSERT INTO stat (`key`, `value`, `calctime`) VALUES (?, ?, UNIX_TIMESTAMP()) ON DUPLICATE KEY UPDATE `value` = VALUES(value), `calctime` = UNIX_TIMESTAMP()', [prop, values[prop]]));
}
if(sql.length === 1)
return this.request(sql.join(';'));
else
return this.transaction(sql.join(';'));
}
async get_peer_count(type){
//return this.request('SELECT ANY_VALUE(`type`) as type, sum(`count`) as count FROM clients GROUP BY `type`;');
return (await this.request(mysql.format('SELECT sum(`count`) as count FROM clients WHERE `type` = ?;', type)))[0];
}
async get_accounts_count(token_hash){
let cnt = undefined;
if(token_hash === undefined)
cnt = (await this.request(mysql.format("SELECT count(distinct(id)) as count FROM ledger")))[0];
else
cnt = (await this.request(mysql.format("SELECT count(*) as count FROM ledger WHERE `token` = ?", token_hash)))[0];
return cnt;
}
async get_tokens_count(){
let cnt = (await this.request(mysql.format(`SELECT count(*) as count, SUM(if(reissuable = 0 AND minable = 0, 1, 0)) as non_reissuable, SUM(if(reissuable = 1, 1, 0)) as reissuable, SUM(if(minable = 1, 1, 0)) as minable FROM tokens`)))[0];
return cnt;
}
async get_tickers_all(){
let tickers_all = await this.request(mysql.format("SELECT hash, ticker, caption FROM tokens"));
return tickers_all;
}
async get_circulating_supply(){
let amount = (await this.request(mysql.format("SELECT SUM(amount) as amount FROM ledger WHERE `token` = ?", Utils.ENQ_TOKEN_NAME)))[0];
return amount;
}
async get_total_supply(){
let amount = (await this.request(mysql.format(`SELECT (L.led + D.del + R.rew + U.und + P_1.p1 + P_2.p2) AS amount FROM
(SELECT ifnull(sum(amount), 0) AS led FROM ledger WHERE token = ?) AS L,
(SELECT ifnull(sum(amount), 0) AS del FROM delegates) AS D,
(SELECT ifnull(sum(reward), 0) AS rew FROM delegates) AS R,
(SELECT ifnull(sum(amount), 0) AS und FROM undelegates) AS U,
(SELECT ifnull(sum(volume_1), 0) AS p1 FROM dex_pools WHERE asset_1 = ?) AS P_1,
(SELECT ifnull(sum(volume_2), 0) AS p2 FROM dex_pools WHERE asset_2 = ?) AS P_2`,
[Utils.ENQ_TOKEN_NAME, Utils.ENQ_TOKEN_NAME, Utils.ENQ_TOKEN_NAME])))[0];
return amount;
}