'use strict';

const config = require('config');
const knex = require('knex');

const knexInstance = knex({
	client: 'pg',
	connection: config.database.owner,
	pool: config.database.pool,
	// performance overhead, don't use asyncStackTraces in production
	asyncStackTraces: process.env.NODE_ENV === 'development',
	// debug: process.env.NODE_ENV === 'development',
});

knexInstance.on('query', function onQuery(query) {
	const bindingCount = query.bindings?.length ?? 0;

	if (bindingCount > 50000) {
		const error = new Error(`[knex] Dangerous query: ${bindingCount} bindings detected: ${query.sql?.slice(0, 200)}${query.sql?.length > 200 ? '...' : ''}`);

		Error.captureStackTrace(error, onQuery);
		// console.error(error);

		throw error; // optionally hard-fail so you get a real stack trace
	}
});

knexInstance.on('query-error', (error, query) => {
	error.knexSql = `${query.sql?.slice(0, 200)}${query.sql?.length > 200 ? '...' : ''}`;
	error.knexBindingCount = query.bindings?.length;
});

module.exports = knexInstance;