@developers-joyride/shortify/dist/adapters/mongodb.adapter.js

High performance URL shortener library with multi-database support (MongoDB, SQLite, PostgreSQL, MySQL)

"use strict";
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    if (k2 === undefined) k2 = k;
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
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        return result;
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})();
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.MongoAdapter = void 0;
const mongoose_1 = __importDefault(require("mongoose"));
const events_1 = require("events");
class MongoAdapter extends events_1.EventEmitter {
    constructor(config) {
        super();
        this.retryCount = 0;
        this._isConnected = false;
        this.mongoUri = config.mongoUri;
        this.maxRetries = config.maxRetries || 5;
        this.retryDelay = config.retryDelay || 5000;
        this.collectionName = config.collectionName || "urls";
        // Configure mongoose for high performance
        mongoose_1.default.set("strictQuery", true);
    }
    async connect() {
        try {
            if (this._isConnected) {
                return true;
            }
            // Optimized connection options for high throughput
            await mongoose_1.default.connect(this.mongoUri, {
                serverSelectionTimeoutMS: 5000,
                maxPoolSize: 100, // Increased connection pool for high throughput
            });
            this._isConnected = true;
            this.retryCount = 0;
            this.emit("connected");
            // Handle connection events
            mongoose_1.default.connection.on("error", (err) => {
                console.error("MongoDB connection error:", err);
                this._isConnected = false;
                this.emit("error", err);
                this.retryConnection();
            });
            mongoose_1.default.connection.on("disconnected", () => {
                this._isConnected = false;
                this.emit("disconnected");
                this.retryConnection();
            });
            return true;
        }
        catch (error) {
            console.error("Failed to connect to MongoDB:", error);
            this.emit("error", error);
            return this.retryConnection();
        }
    }
    retryConnection() {
        if (this.retryCount < this.maxRetries) {
            this.retryCount++;
            // Exponential backoff
            const delay = this.retryDelay * Math.pow(2, this.retryCount - 1);
            console.log(`Retrying MongoDB connection in ${delay}ms (attempt ${this.retryCount}/${this.maxRetries})`);
            setTimeout(() => {
                this.connect();
            }, delay);
            return true;
        }
        else {
            this.emit("maxRetriesReached");
            return false;
        }
    }
    async disconnect() {
        if (mongoose_1.default.connection.readyState !== 0) {
            await mongoose_1.default.disconnect();
            this._isConnected = false;
            this.emit("disconnected");
        }
    }
    isConnected() {
        return this._isConnected;
    }
    async createUrl(url) {
        const { createUrlModel } = await Promise.resolve().then(() => __importStar(require("../models/url.model")));
        const UrlModel = createUrlModel(this.collectionName);
        const newUrl = new UrlModel({
            urlId: url.urlId,
            originalUrl: url.originalUrl,
            shortUrl: url.shortUrl,
            clicks: url.clicks,
            expiresAt: url.expiresAt,
        });
        const savedUrl = await newUrl.save();
        return {
            urlId: savedUrl.urlId,
            originalUrl: savedUrl.originalUrl,
            shortUrl: savedUrl.shortUrl,
            clicks: savedUrl.clicks,
            createdAt: savedUrl.createdAt,
            expiresAt: savedUrl.expiresAt,
        };
    }
    async findUrlByUrlId(urlId) {
        const { createUrlModel } = await Promise.resolve().then(() => __importStar(require("../models/url.model")));
        const UrlModel = createUrlModel(this.collectionName);
        const url = await UrlModel.findOne({ urlId }).exec();
        if (!url) {
            return null;
        }
        return {
            urlId: url.urlId,
            originalUrl: url.originalUrl,
            shortUrl: url.shortUrl,
            clicks: url.clicks,
            createdAt: url.createdAt,
            expiresAt: url.expiresAt,
        };
    }
    async findUrlByOriginalUrl(originalUrl) {
        const { createUrlModel } = await Promise.resolve().then(() => __importStar(require("../models/url.model")));
        const UrlModel = createUrlModel(this.collectionName);
        const url = await UrlModel.findOne({ originalUrl }).exec();
        if (!url) {
            return null;
        }
        return {
            urlId: url.urlId,
            originalUrl: url.originalUrl,
            shortUrl: url.shortUrl,
            clicks: url.clicks,
            createdAt: url.createdAt,
            expiresAt: url.expiresAt,
        };
    }
    async updateUrlClicks(urlId, clicks) {
        const { createUrlModel } = await Promise.resolve().then(() => __importStar(require("../models/url.model")));
        const UrlModel = createUrlModel(this.collectionName);
        await UrlModel.updateOne({ urlId }, { clicks });
    }
    async deleteUrl(urlId) {
        const { createUrlModel } = await Promise.resolve().then(() => __importStar(require("../models/url.model")));
        const UrlModel = createUrlModel(this.collectionName);
        const result = await UrlModel.deleteOne({ urlId });
        return result.deletedCount > 0;
    }
}
exports.MongoAdapter = MongoAdapter;