swiggy-recap.js

const fs = require('fs');

let orders = []
try {
    data = fs.readFileSync('orders.json', 'utf8');
    orders = JSON.parse(data)
  //console.log(data);
} catch (err) {
  console.error(err);
}

// filter only 2023 orders
orders = orders.sort((a,b) => a.order_item < b.order_item).filter(order => order.order_time.includes("2023-"))

// top cuisine
cuisines = orders.map(order => order.restaurant_cuisine)

let cuisineMap = new Map()
cuisines.flat().map(cuisine => {

    if(cuisineMap.get(cuisine))
    {
        cuisineMap.set(cuisine, 1+cuisineMap.get(cuisine))
    }
    else  cuisineMap.set(cuisine,1)
})

const sortedCuisineMap = new Map([...cuisineMap.entries()].sort((a,b) => b[1] - a[1]))
console.log("ate cuisines", cuisineMap.size)
console.log("top cuisines", sortedCuisineMap)

// places
cities = new Set(orders.map(order => order.delivery_address.city))

console.log("places", cities)

// top restaurants
restaurants = orders.map(order => ({id: order.restaurant_id, name: order.restaurant_name}))
let restaurantMap = new Map()
restaurants.map(restaurant => {

    let id = restaurant.id, name = restaurant.name
    if(restaurantMap.get(id))
    {
        restaurantMap.set(id, ({count: 1+restaurantMap.get(id).count, name }))
    }
    else restaurantMap.set(id,{count: 1, name})
})

const sortedRestaurantMap = new Map([...restaurantMap.entries()].sort((a,b) => b[1].count - a[1].count))
console.log("ate restaurants", restaurantMap.size)
console.log("top restaurants")
for (const [key, value] of sortedRestaurantMap) {
    console.log(`${key}, ${value.name} = ${value.count}`);
  }


// food items
foods = orders.map(order => order.order_items).flat()
console.log("ate food items", foods.length)

let foodMap = new Map()
foods.flat().map(food => {

    category = food.category_details.category
    if(foodMap.get(category))
    {
        foodMap.set(category, 1+foodMap.get(category))
    }
    else  foodMap.set(category,1)
})

const sortedfoodMap = new Map([...foodMap.entries()].sort((a,b) => b[1] - a[1]))
console.log("top cuisines", sortedfoodMap)

// minutes hungry

let secondsHungry = orders.reduce((ac,cv) => ac + parseInt(cv.delivery_time_in_seconds), 0)
console.log("minutes hungry", secondsHungry)

// total amouont spent
let totalAmount = orders.reduce((ac,cv) => ac + parseFloat(cv.paymentTransactions[0].amount), 0)
console.log("totalAmount", totalAmount)
console.log("average", totalAmount / orders.length)