app.mjs

//import manager from './ProductManager.mjs';
import { manager  } from './ProductManager.mjs';
import express from 'express';
import bodyParser from 'body-parser';


const app = express();
app.use(bodyParser.json());


// Show all products
app.get('/api/products', async (req, res) => {
  console.log("API get invoked.");
  const products = await manager.getProducts();
  const answer = products.length == 0 ? "No products available" : products;
  res.status(manager.getLastStatus()).json(answer);
});


// Add a new product
app.post('/api/products', async (req, res) => {
  console.log("API post invoked.");
  const { name, description, category, amount } = req.body;
  const answer = await manager.addProduct(name, description, category, amount) || 
  `Product '${name}' with description '${description}' of category '${category}' has been added successfully with amount of '${amount || 0}'!`;
  res.status(manager.getLastStatus()).json(answer);
});


// Update product amount
app.put('/api/products/:name', async (req, res) => {
  console.log("API put invoked.");
  const productName = req.params.name;
  const newAmount = req.body.amount;
  const answer = await manager.updateAmount(productName, newAmount) || `Product: '${productName}' amount has been updated successfully to '${newAmount}!'`;
  res.status(manager.getLastStatus()).json(answer);
});

  
// Delete product
app.delete('/api/products/:name', async (req, res) => {
  console.log("API delete invoked.");
  const productName = req.params.name;
  const answer = await manager.deleteProduct(productName) || `Product: '${productName} has been deleted successfully!`;
  res.status(manager.getLastStatus()).json(answer);
});


const port = process.env.PORT || 3000;
app.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});