Question

using System;
using System.Collections.Generic;

namespace RecipeApp
{
class Recipe
{
public string Name { get; set; }
public List<Ingredient> Ingredients { get; set; }
public List<string> Steps { get; set; }

public void DisplayRecipe()
{
Console.WriteLine("Recipe: " + Name);
Console.WriteLine("Ingredients:");
foreach (var ingredient in Ingredients)
{
Console.WriteLine("- " + ingredient.Name + " - " + ingredient.Quantity + " " + ingredient.Measurement + " - " + ingredient.Calories + " calories - " + ingredient.FoodGroup);
}

Console.WriteLine("\nSteps:");
for (int i = 0; i < Steps.Count; i++)
{
Console.WriteLine((i + 1) + ". " + Steps[i]);
}
}

public double CalculateTotalCalories()
{
double totalCalories = 0;
foreach (var ingredient in Ingredients)
{
totalCalories += ingredient.Calories;
}

return totalCalories;
}
}

class Ingredient
{
public string Name { get; set; }
public double Quantity { get; set; }
public string Measurement { get; set; }
public int Calories { get; set; }
public string FoodGroup { get; set; }
}

class Program
{
static List<Recipe> recipes = new List<Recipe>();

static void Main(string[] args)
{
bool running = true;
while (running)
{
Console.WriteLine("\nMENU:");
Console.WriteLine("1. Add a Recipe");
Console.WriteLine("2. Scale Recipe");
Console.WriteLine("3. Set to Original Recipe");
Console.WriteLine("4. Display Recipes");
Console.WriteLine("5. Exit");
Console.Write("Select an option: ");
int option = Convert.ToInt32(Console.ReadLine());

switch (option)
{
case 1:
Recipe recipe = new Recipe();
Console.Write("Enter the recipe name: ");
recipe.Name = Console.ReadLine();

List<Ingredient> ingredients = new List<Ingredient>();
Console.Write("Enter the number of ingredients: ");
int numIngredients = Convert.ToInt32(Console.ReadLine());
for (int i = 0; i < numIngredients; i++)
{
Ingredient ingredient = new Ingredient();
Console.Write("Enter ingredient " + (i + 1) + " name: ");
ingredient.Name = Console.ReadLine();

Console.Write("Enter the quantity " + (i + 1) + ": ");
ingredient.Quantity = Convert.ToDouble(Console.ReadLine());

Console.Write("Enter the measurement " + (i + 1) + " (cup, Kg, ml, L, g): ");
ingredient.Measurement = Console.ReadLine();

Console.Write("Enter the number of calories for " + ingredient.Name + ": ");
ingredient.Calories = Convert.ToInt32(Console.ReadLine());

Console.Write("Enter the food group for " + ingredient.Name + ": ");
ingredient.FoodGroup = Console.ReadLine();

ingredients.Add(ingredient);
}
recipe.Ingredients = ingredients;

Console.Write("\nEnter the number of steps: ");
int numSteps = Convert.ToInt32(Console.ReadLine());
List<string> steps = new List<string>();
for (int i = 0; i < numSteps; i++)
{
Console.Write("Enter step " + (i + 1) + ": ");
steps.Add(Console.ReadLine());
}
recipe.Steps = steps;

recipes.Add(recipe);
break;

case 2:
// Scale Recipe
break;

case 3:
// Set to Original Recipe
break;

case 4:
DisplayRecipes();
break;

case 5:
running = false;
break;

default:
Console.WriteLine("Invalid option. Please try again.");
break;
}
}
}

static void DisplayRecipes()
{
if (recipes.Count == 0)
{
Console.WriteLine("No recipes available. Please add a recipe first.");
}
else
{
Console.WriteLine("Recipes:");
foreach (var recipe in recipes)
{
Console.WriteLine("- " + recipe.Name);
}

Console.Write("Enter the number of the recipe to display: ");
int recipeIndex = Convert.ToInt32(Console.ReadLine());
if (recipeIndex >= 1 && recipeIndex <= recipes.Count)
{
Recipe selectedRecipe = recipes[recipeIndex - 1];
selectedRecipe.DisplayRecipe();
double totalCalories = selectedRecipe.CalculateTotalCalories();
Console.WriteLine("\nTotal Calories: " + totalCalories);
if (totalCalories > 300)
{
Console.WriteLine("Warning: Total Calories exceed 300.");
}
}
else
{
Console.WriteLine("Invalid recipe number. Please try again.");
}
}
}
}
}

create unit test to test the total calorie calculation