server.js

require("dotenv").config();

const http = require("https");
const express = require("express");
const bodyParser = require("body-parser");
const cookieParser = require("cookie-parser");
const cors = require("cors");
const log = require("./lib/chalkLog");

const app = express();
const port = process.env.PORT || 4000;

app.use(cors());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.use(cookieParser());

// route imports
const userRoutes = require("./routes/user");
const tutorRoutes = require("./routes/tutor");
const parentRoutes = require("./routes/parent");
const studentRoutes = require("./routes/student");
const reportRoutes = require("./routes/report");
const jobRoutes = require("./routes/job");
const adminRoutes = require("./routes/admin");
const renewAccessTokenRoute = require("./routes/renewAccessToken");

// prisma instance
const { PrismaClient } = require("@prisma/client");
const prisma = new PrismaClient();

// route middlewares
app.use("/api/v1/user", userRoutes);
app.use("/api/v1/tutor", tutorRoutes);
app.use("/api/v1/parent", parentRoutes);
app.use("/api/v1/student", studentRoutes);
app.use("/api/v1/report", reportRoutes);
app.use("/api/v1/job", jobRoutes);
app.use("/api/v1/admin", adminRoutes);
app.use("/api/v1/refreshTokens", renewAccessTokenRoute);

// catching error
app.use((req, res, next) => {
  const error = new Error("Not Found");
  error.status = 404;
  next(error);
});
app.use((error, req, res, next) => {
  res.status(error.status || 500);
  res.json({
    error: {
      message: error.message,
    },
  });
});

// keep server alive
const minInterval = 5 * 60 * 1000; // 5 minutes in milliseconds
const maxInterval = 15 * 60 * 1000; // 15 minutes in milliseconds

function getRandomInterval() {
  return Math.floor(
    Math.random() * (maxInterval - minInterval + 1) + minInterval
  );
}

function keepServerAlive() {
  let count = 0;
  console.log("Calling server to keep it alive...");
  http.get("https://temaribet-api.onrender.com");
  count++;

  const interval = getRandomInterval();
  setTimeout(keepServerAlive, interval);
}

// listen to server
app.listen(port, () => {
  log.success(`Server is running on port ${port}.`);
  keepServerAlive();
});