87 lines
3.1 KiB
TypeScript
87 lines
3.1 KiB
TypeScript
import DB from '../database';
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import logger from '../logger';
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import { BlockSummary } from '../mempool.interfaces';
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class BlocksSummariesRepository {
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public async $getByBlockId(id: string): Promise<BlockSummary | undefined> {
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try {
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const [summary]: any[] = await DB.query(`SELECT * from blocks_summaries WHERE id = ?`, [id]);
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if (summary.length > 0) {
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summary[0].transactions = JSON.parse(summary[0].transactions);
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return summary[0];
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}
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} catch (e) {
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logger.err(`Cannot get block summary for block id ${id}. Reason: ` + (e instanceof Error ? e.message : e));
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}
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return undefined;
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}
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public async $saveSummary(params: { height: number, mined?: BlockSummary}) {
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const blockId = params.mined?.id;
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try {
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const transactions = JSON.stringify(params.mined?.transactions || []);
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await DB.query(`
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INSERT INTO blocks_summaries (height, id, transactions, template)
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VALUE (?, ?, ?, ?)
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ON DUPLICATE KEY UPDATE
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transactions = ?
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`, [params.height, blockId, transactions, '[]', transactions]);
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} catch (e: any) {
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if (e.errno === 1062) { // ER_DUP_ENTRY - This scenario is possible upon node backend restart
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logger.debug(`Cannot save block summary for ${blockId} because it has already been indexed, ignoring`);
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} else {
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logger.debug(`Cannot save block summary for ${blockId}. Reason: ${e instanceof Error ? e.message : e}`);
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throw e;
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}
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}
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}
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public async $saveTemplate(params: { height: number, template: BlockSummary}) {
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const blockId = params.template?.id;
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try {
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const transactions = JSON.stringify(params.template?.transactions || []);
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await DB.query(`
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INSERT INTO blocks_summaries (height, id, transactions, template)
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VALUE (?, ?, ?, ?)
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ON DUPLICATE KEY UPDATE
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template = ?
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`, [params.height, blockId, '[]', transactions, transactions]);
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} catch (e: any) {
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if (e.errno === 1062) { // ER_DUP_ENTRY - This scenario is possible upon node backend restart
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logger.debug(`Cannot save block template for ${blockId} because it has already been indexed, ignoring`);
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} else {
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logger.debug(`Cannot save block template for ${blockId}. Reason: ${e instanceof Error ? e.message : e}`);
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throw e;
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}
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}
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}
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public async $getIndexedSummariesId(): Promise<string[]> {
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try {
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const [rows]: any[] = await DB.query(`SELECT id from blocks_summaries`);
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return rows.map(row => row.id);
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} catch (e) {
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logger.err(`Cannot get block summaries id list. Reason: ` + (e instanceof Error ? e.message : e));
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}
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return [];
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}
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/**
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* Delete blocks from the database from blockHeight
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*/
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public async $deleteBlocksFrom(blockHeight: number) {
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logger.info(`Delete newer blocks summary from height ${blockHeight} from the database`);
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try {
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await DB.query(`DELETE FROM blocks_summaries where height >= ${blockHeight}`);
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} catch (e) {
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logger.err('Cannot delete indexed blocks summaries. Reason: ' + (e instanceof Error ? e.message : e));
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}
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}
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}
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export default new BlocksSummariesRepository();
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