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Build a simple Pantry-tracking program that can store a list of ingredients and available quantities. Once we have tracked our ingredients and quantities, we'll use the Recipe class we built before to have the pantry prepare a shopping list for us.
Support the following interactions:
pantry = Pantry.new
# => <Pantry...>
# Checking and adding stock
pantry.stock
# => {}
pantry.stock_check("Cheese")
# => 0
pantry.restock("Cheese", 10)
pantry.stock_check("Cheese")
# => 10
pantry.restock("Cheese", 20)
pantry.stock_check("Cheese")
# => 30Add a feature to your pantry to generate a shopping list for a collection of recipes.
We'll follow this interaction pattern:
pantry = Pantry.new
# => <Pantry...>
# Building our recipe
r = Recipe.new("Cheese Pizza")
# => <Recipe...>
r.ingredients
# => {}
r.add_ingredient("Cheese", 20)
r.add_ingredient("Flour", 20)
r.ingredients
# => {"Cheese" => 20, "Flour" => 20}
# Adding the recipe to the shopping list
pantry.add_to_shopping_list(r)
# Checking the shopping list
pantry.shopping_list # => {"Cheese" => 20, "Flour" => 20}
# Adding another recipe
r = Recipe.new("Spaghetti")
r.add_ingredient("Spaghetti Noodles", 10)
r.add_ingredient("Marinara Sauce", 10)
r.add_ingredient("Cheese", 5)
pantry.add_to_shopping_list(r)
# Checking the shopping list
pantry.shopping_list # => {"Cheese" => 25, "Flour" => 20, "Spaghetti Noodles" => 10, "Marinara Sauce" => 10}
# Printing the shopping list
pantry.print_shopping_list
# * Cheese: 25
# * Flour: 20
# * Spaghetti Noodles: 10
# * Marinara Sauce: 10
# => "* Cheese: 25\n* Flour: 20\n* Spaghetti Noodles: 10\n* Marinara Sauce: 10"Add a feature to your pantry that can recommend recipes for us to cook based on what ingredients we currently have in stock.
Support this interaction pattern:
pantry = Pantry.new
# Building our recipe
r1 = Recipe.new("Cheese Pizza")
r1.add_ingredient("Cheese", 20)
r1.add_ingredient("Flour", 20)
r2 = Recipe.new("Pickles")
r2.add_ingredient("Brine", 10)
r2.add_ingredient("Cucumbers", 30)
r3 = Recipe.new("Peanuts")
r3.add_ingredient("Raw nuts", 10)
r3.add_ingredient("Salt", 10)
# Adding the recipe to the cookbook
pantry.add_to_cookbook(r1)
pantry.add_to_cookbook(r2)
pantry.add_to_cookbook(r3)
# Stock some ingredients
pantry.restock("Cheese", 10)
pantry.restock("Flour", 20)
pantry.restock("Brine", 40)
pantry.restock("Cucumbers", 120)
pantry.restock("Raw nuts", 20)
pantry.restock("Salt", 20)
# What can I make?
pantry.what_can_i_make # => ["Pickles", "Peanuts"]
# How many can I make?
pantry.how_many_can_i_make # => {"Pickles" => 4, "Peanuts" => 2}