BD-2.5-Assignment3.js

const express = require("express");
const cors = require("cors");
const app = express();
app.use(cors());

let hotels = [
  {
    id: 1,
    name: "Romantic Getaway",
    category: "Resort",
    rating: 2.2,
    reviews: 4572,
    amenity: "Spa",
    price: 10464,
    country: "South Africa",
  },
  {
    id: 2,
    name: "Wellness Retreat",
    category: "Family",
    rating: 2.8,
    reviews: 2114,
    amenity: "Pool",
    price: 13243,
    country: "Australia",
  },
  {
    id: 3,
    name: "Romantic Getaway",
    category: "Luxury",
    rating: 3.1,
    reviews: 4359,
    amenity: "Restaurant",
    price: 3299,
    country: "Germany",
  },
  {
    id: 4,
    name: "Luxury Suites",
    category: "Family",
    rating: 4.9,
    reviews: 3651,
    amenity: "Bar",
    price: 16359,
    country: "United Kingdom",
  },
  {
    id: 5,
    name: "Luxury Suites",
    category: "Budget",
    rating: 4.6,
    reviews: 688,
    amenity: "Gym",
    price: 15570,
    country: "France",
  },
  {
    id: 6,
    name: "Cultural Heritage Hotel",
    category: "Boutique",
    rating: 2.0,
    reviews: 219,
    amenity: "Pet Friendly",
    price: 2321,
    country: "USA",
  },
  {
    id: 7,
    name: "Business Hotel",
    category: "Mid-Range",
    rating: 3.7,
    reviews: 1040,
    amenity: "Free WiFi",
    price: 4523,
    country: "India",
  },
  {
    id: 8,
    name: "Historic Plaza Hotel",
    category: "Mid-Range",
    rating: 3.5,
    reviews: 300,
    amenity: "Parking",
    price: 8543,
    country: "Australia",
  },
  {
    id: 9,
    name: "Adventure Resort",
    category: "Boutique",
    rating: 4.2,
    reviews: 1222,
    amenity: "Gym",
    price: 11894,
    country: "South Africa",
  },
  {
    id: 10,
    name: "Mountain Retreat",
    category: "Resort",
    rating: 4.8,
    reviews: 4015,
    amenity: "Spa",
    price: 17560,
    country: "India",
  },
  {
    id: 11,
    name: "Eco Friendly Lodge",
    category: "Family",
    rating: 2.4,
    reviews: 528,
    amenity: "Restaurant",
    price: 3124,
    country: "Germany",
  },
  {
    id: 12,
    name: "Urban Boutique Hotel",
    category: "Mid-Range",
    rating: 3.9,
    reviews: 1401,
    amenity: "Free WiFi",
    price: 9245,
    country: "France",
  },
  {
    id: 13,
    name: "Beachfront Hotel",
    category: "Luxury",
    rating: 4.5,
    reviews: 489,
    amenity: "Pool",
    price: 14567,
    country: "USA",
  },
  {
    id: 14,
    name: "Ocean View Resort",
    category: "Budget",
    rating: 3.3,
    reviews: 783,
    amenity: "Spa",
    price: 7432,
    country: "United Kingdom",
  },
  {
    id: 15,
    name: "City Central Hotel",
    category: "Boutique",
    rating: 4.1,
    reviews: 2133,
    amenity: "Bar",
    price: 9823,
    country: "Australia",
  },
  {
    id: 16,
    name: "Casino Resort",
    category: "Luxury",
    rating: 4.9,
    reviews: 5000,
    amenity: "Bar",
    price: 18900,
    country: "South Africa",
  },
  {
    id: 17,
    name: "Golf Resort",
    category: "Mid-Range",
    rating: 4.7,
    reviews: 789,
    amenity: "Gym",
    price: 16340,
    country: "France",
  },
  {
    id: 18,
    name: "Family Fun Hotel",
    category: "Family",
    rating: 3.2,
    reviews: 1322,
    amenity: "Pool",
    price: 7500,
    country: "Germany",
  },
  {
    id: 19,
    name: "Spa and Relaxation Hotel",
    category: "Luxury",
    rating: 4.4,
    reviews: 2314,
    amenity: "Spa",
    price: 14900,
    country: "United Kingdom",
  },
  {
    id: 20,
    name: "Country House Hotel",
    category: "Budget",
    rating: 3.6,
    reviews: 1876,
    amenity: "Parking",
    price: 6234,
    country: "Australia",
  },
];

app.get('/hotels', (req, res) => {
  res.json({ hotels: hotels });
});

app.get('/hotels/sort/pricing', (req, res) => {
  const pricing = req.query.pricing;

  let sortedHotels = hotels.sort((a, b) => {
    if (pricing === 'low-to-high') {
      return a.price - b.price;
    } else if (pricing === 'high-to-low') {
      return b.price - a.price;
    }
  });
    res.json({ hotels: sortedHotels });
});

app.get('/hotels/sort/rating', (req, res) => {
  const rating = req.query.rating; 

  let sortedHotels = hotels.sort((a, b) => {
    if (rating === 'low-to-high') {
      return a.rating - b.rating;
    } else if (rating === 'high-to-low') {
      return b.rating - a.rating;
    }
  });

  res.json({ hotels: sortedHotels });
});

app.get('/hotels/sort/reviews', (req, res) => {
  const reviews = req.query.reviews; 

  let sortedHotels = hotels.sort((a, b) => {
    if (reviews === 'least-to-most') {
      return a.reviews - b.reviews;
    } else if (reviews === 'most-to-least') {
      return b.reviews - a.reviews;
    }
  });

  res.json({ hotels: sortedHotels });
});

app.get('/hotels/filter/amenity', (req, res) => {
  const amenity = req.query.amenity.toLowerCase();
  
  let filteredHotels = hotels.filter((hotel) => hotel.amenity.toLowerCase() === amenity);

  res.json({ hotels: filteredHotels });
});

app.get('/hotels/filter/country', (req, res) => {
  const country = req.query.country.toLowerCase();

  function filterByCountry(hotels, country) {
    return hotels.filter(hotel => hotel.country.toLowerCase() === country);
  }

  let filteredHotels = filterByCountry(hotels, country);

  res.json({ hotels: filteredHotels });
});

app.get('/hotels/filter/category', (req, res) => {
  const category = req.query.category.toLowerCase();

  function filterByCategory(hotels, category) {
    return hotels.filter(hotel => hotel.category.toLowerCase() === category);
  }

  let filteredHotels = filterByCategory(hotels, category);

  res.json({ hotels: filteredHotels });
});

app.get('/hotels', (req, res) => {
  res.json({ hotels: hotels });
});

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