symspell-ex/lib/core/redis/database.js

Spelling correction & Fuzzy search based on symmetric delete spelling correction algorithm

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Redis = exports.RedisConfig = void 0;
const ioredis_1 = __importDefault(require("ioredis"));
const RETRY_COUNT = 15;
const RETRY_DELAY = 100;
const RETRY_DELAY_MIN = 2000;
class RedisConfig {
    constructor(host, port, password, db = 0) {
        this.port = 6379;
        this.db = 0;
        this.host = host;
        this.port = port;
        this.password = password;
        this.db = db;
    }
}
exports.RedisConfig = RedisConfig;
class Redis {
    /**
     *
     * @param config
     * {
     *     host: {type: 'string'},
     *     port: {type: 'number'},
     *     password: {type: 'string'},
     *     db: {type: 'number'},
     *     onConnected: {type: 'function'}
     * }
     */
    constructor(config) {
        this._isConnected = false;
        // @ts-ignore
        const { host, port, password, db } = config;
        this._config = {
            host,
            port,
            password,
            db,
            enableReadyCheck: true,
            lazyConnect: true,
            retryStrategy: (times) => {
                const delay = Math.min(times * RETRY_DELAY, RETRY_DELAY_MIN);
                if (times <= RETRY_COUNT) {
                    return delay;
                }
                return false;
            }
        };
        const self = this;
        this._db = new ioredis_1.default(this._config);
        this._db.on('ready', async () => {
            // console.log('Connected to redis');
            self._isConnected = true;
        });
    }
    async connect() {
        return this._db.connect();
    }
    async isConnected() {
        return this._isConnected;
    }
    async disconnect() {
        return this._db.disconnect();
    }
    get instance() {
        return this._db;
    }
}
exports.Redis = Redis;