import mongoose from "mongoose";

import request from "supertest";

import { handler } from "../index";

import { MongoMemoryServer } from "mongodb-memory-server";

// Mock environment variables

process.env.MONGO_URI = "mongodb://localhost:27017/testdb";

let mongoServer: MongoMemoryServer;

// Start in-memory MongoDB server

beforeAll(async () => {

mongoServer = await MongoMemoryServer.create();

process.env.MONGO_URI = mongoServer.getUri();

await mongoose.connect(process.env.MONGO_URI);

});

// Close MongoDB connection after tests

afterAll(async () => {

await mongoose.connection.close();

await mongoServer.stop();

});

describe("API Tests", () => {

test("GET / should return welcome message", async () => {

const event = { path: "/", httpMethod: "GET" };

const response = await handler(event);

expect(response.statusCode).toBe(200);

expect(JSON.parse(response.body)).toHaveProperty("message");

});

test("GET /fetchHosts should return an empty array initially", async () => {

const event = { path: "/fetchHosts", httpMethod: "GET" };

const response = await handler(event);

expect(response.statusCode).toBe(200);

expect(JSON.parse(response.body)).toEqual([]);

});

test("POST /insert_review should add a new review", async () => {

const reviewData = {

name: "John Doe",

host: 1,

review: "Great place!",

visit_date: "2025-03-06",

room: "Deluxe",

amenities: "WiFi, Pool",

};

const event = {

path: "/insert_review",

httpMethod: "POST",

body: JSON.stringify(reviewData),

};

const response = await handler(event);

expect(response.statusCode).toBe(201);

const savedReview = JSON.parse(response.body);

expect(savedReview.name).toBe("John Doe");

});

});