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Graded Items:
- Create an Item with attributes:
Item.new - Create a FoodTruck with attributes:
FoodTruck.new - Check quantity of an Item on the FoodTruck:
FoodTruck #check_stock - Stock an Item on the FoodTruck:
FoodTruck #stock
The Event will need to keep track of its FoodTrucks and their Items. Each FoodTruck will be able to report its total inventory, stock items, and return the quantity of items. Any item not in stock should return 0 by default.
Use TDD to create a FoodTruck class that responds to the following interaction pattern:
pry(main)> require './lib/item'
#=> true
pry(main)> require './lib/food_truck'
#=> true
pry(main)> item1 = Item.new({name: 'Peach Pie (Slice)', price: "$3.75"})
#=> #<Item:0x007f9c56740d48...>
pry(main)> item2 = Item.new({name: 'Apple Pie (Slice)', price: '$2.50'})
#=> #<Item:0x007f9c565c0ce8...>
pry(main)> item2.name
#=> "Apple Pie (Slice)"
pry(main)> item2.price
#=> 2.50
pry(main)> food_truck = FoodTruck.new("Rocky Mountain Pies")
#=> #<FoodTruck:0x00007f85683152f0...>
pry(main)> food_truck.name
#=> "Rocky Mountain Pies"
pry(main)> food_truck.inventory
#=> {}
pry(main)> food_truck.check_stock(item1)
#=> 0
pry(main)> food_truck.stock(item1, 30)
pry(main)> food_truck.inventory
#=> {#<Item:0x007f9c56740d48...> => 30}
pry(main)> food_truck.check_stock(item1)
#=> 30
pry(main)> food_truck.stock(item1, 25)
pry(main)> food_truck.check_stock(item1)
#=> 55
pry(main)> food_truck.stock(item2, 12)
pry(main)> food_truck.inventory
#=> {#<Item:0x007f9c56740d48...> => 55, #<Item:0x007f9c565c0ce8...> => 12}Graded Items:
- Create an Event with attributes:
Event.new - Add a FoodTruck to an Event:
Event #add_food_truck - Return the list of FoodTruck names for an Event:
Event #food_truck_names - Return the list of FoodTrucks that sell a given Item for an Event:
Event #food_trucks_that_sell - Return the potential revenue from a FoodTruck:
FoodTruck #potential_revenue
A FoodTruck will be able to calculate their potential_revenue - the sum of all their items' price * quantity.
A Event is responsible for keeping track of FoodTrucks. It should have a method called food_truck_names that returns an array of all the FoodTruck's names.
Additionally, the Event should have a method called food_trucks_that_sell that takes an argument of an item represented as a String. It will return a list of FoodTrucks that have that item in stock.
Use TDD to create a Event class that responds to the following interaction pattern:
pry(main)> require './lib/item'
#=> true
pry(main)> require './lib/food_truck'
#=> true
pry(main)> require './lib/event'
#=> true
pry(main)> event = Event.new("South Pearl Street Farmers Market")
#=> #<Event:0x00007fe134933e20...>
pry(main)> event.name
#=> "South Pearl Street Farmers Market"
pry(main)> event.food_trucks
#=> []
pry(main)> food_truck1 = FoodTruck.new("Rocky Mountain Pies")
#=> #<FoodTruck:0x00007fe1348a1160...>
pry(main)> item1 = Item.new({name: 'Peach Pie (Slice)', price: "$3.75"})
#=> #<Item:0x007f9c56740d48...>
pry(main)> item2 = Item.new({name: 'Apple Pie (Slice)', price: '$2.50'})
#=> #<Item:0x007f9c565c0ce8...>
pry(main)> item3 = Item.new({name: "Peach-Raspberry Nice Cream", price: "$5.30"})
#=> #<Item:0x007f9c562a5f18...>
pry(main)> item4 = Item.new({name: "Banana Nice Cream", price: "$4.25"})
#=> #<Item:0x007f9c56343038...>
pry(main)> food_truck1.stock(item1, 35)
pry(main)> food_truck1.stock(item2, 7)
pry(main)> food_truck2 = FoodTruck.new("Ba-Nom-a-Nom")
#=> #<FoodTruck:0x00007fe1349bed40...>
pry(main)> food_truck2.stock(item4, 50)
pry(main)> food_truck2.stock(item3, 25)
pry(main)> food_truck3 = FoodTruck.new("Palisade Peach Shack")
#=> #<FoodTruck:0x00007fe134910650...>
pry(main)> food_truck3.stock(item1, 65)
pry(main)> event.add_food_truck(food_truck1)
pry(main)> event.add_food_truck(food_truck2)
pry(main)> event.add_food_truck(food_truck3)
pry(main)> event.food_trucks
#=> [#<FoodTruck:0x00007fe1348a1160...>, #<FoodTruck:0x00007fe1349bed40...>, #<FoodTruck:0x00007fe134910650...>]
pry(main)> event.food_truck_names
#=> ["Rocky Mountain Pies", "Ba-Nom-a-Nom", "Palisade Peach Shack"]
pry(main)> event.food_trucks_that_sell(item1)
#=> [#<FoodTruck:0x00007fe1348a1160...>, #<FoodTruck:0x00007fe134910650...>]
pry(main)> event.food_trucks_that_sell(item4)
#=> [#<FoodTruck:0x00007fe1349bed40...>]
pry(main)> food_truck1.potential_revenue
#=> 148.75
pry(main)> food_truck2.potential_revenue
#=> 345.00
pry(main)> food_truck3.potential_revenue
#=> 243.75 Graded Items:
- Return a list of overstocked Items for an Event:
Event #overstocked_items - Return a sorted list of Item names for an Event:
Event #sorted_item_list - Return a hash of total inventory from an Event:
Event #total_inventory
Your Event will be able to identify overstocked_items. An item is overstocked if it is sold by more than 1 food truck AND the total quantity is greater than 50.
Next, add a method to your Event class called sorted_item_list that returns a list of names of all items the FoodTrucks have in stock, sorted alphabetically. This list should not include any duplicate items.
Additionally, your Event class should have a method called total_inventory that reports the quantities of all items sold at the event. Specifically, it should return a hash with items as keys and hash as values - this sub-hash should have two key/value pairs: quantity pointing to total inventory for that item and food_trucks pointing to an array of the food trucks that sell that item.
Use TDD to update your Event class so that it responds to the following interaction pattern:
pry(main)> require './lib/item'
#=> true
pry(main)> require './lib/food_truck'
#=> true
pry(main)> require './lib/event'
#=> true
pry(main)> event = Event.new("South Pearl Street Farmers Market")
#=> #<Event:0x00007fe134933e20...>
pry(main)> item1 = Item.new({name: 'Peach Pie (Slice)', price: "$3.75"})
#=> #<Item:0x007f9c56740d48...>
pry(main)> item2 = Item.new({name: 'Apple Pie (Slice)', price: '$2.50'})
#=> #<Item:0x007f9c565c0ce8...>
pry(main)> item3 = Item.new({name: "Peach-Raspberry Nice Cream", price: "$5.30"})
#=> #<Item:0x007f9c562a5f18...>
pry(main)> item4 = Item.new({name: "Banana Nice Cream", price: "$4.25"})
#=> #<Item:0x007f9c56343038...>
pry(main)> food_truck1 = FoodTruck.new("Rocky Mountain Pies")
#=> #<FoodTruck:0x00007fe1348a1160...>
pry(main)> food_truck1.stock(item1, 35)
pry(main)> food_truck1.stock(item2, 7)
pry(main)> food_truck2 = FoodTruck.new("Ba-Nom-a-Nom")
#=> #<FoodTruck:0x00007fe1349bed40...>
pry(main)> food_truck2.stock(item4, 50)
pry(main)> food_truck2.stock(item3, 25)
pry(main)> food_truck3 = FoodTruck.new("Palisade Peach Shack")
#=> #<FoodTruck:0x00007fe134910650...>
pry(main)> food_truck3.stock(item1, 65)
pry(main)> food_truck3.stock(item3, 10)
pry(main)> event.add_food_truck(food_truck1)
pry(main)> event.add_food_truck(food_truck2)
pry(main)> event.add_food_truck(food_truck3)
pry(main)> event.overstocked_items
#=> [#<Item:0x007f9c56740d48...>]
pry(main)> event.sorted_item_list
#=> ["Apple Pie (Slice)", "Banana Nice Cream", "Peach Pie (Slice)", "Peach-Raspberry Nice Cream"]
pry(main)> event.total_inventory
#=> {
# #<Item:0x007f9c56740d48...> => {
# quantity: 100,
# food_trucks: [#<FoodTruck:0x00007fe1348a1160...>, #<FoodTruck:0x00007fe134910650...>]
# },
# #<Item:0x007f9c565c0ce8...> => {
# quantity: 7,
# food_trucks: [#<FoodTruck:0x00007fe1348a1160...>]
# },
# #<Item:0x007f9c56343038...> => {
# quantity: 50,
# food_trucks: [#<FoodTruck:0x00007fe1349bed40...>]
# },
# #<Item:0x007f9c562a5f18...> => {
# quantity: 35,
# food_trucks: [#<FoodTruck:0x00007fe1349bed40...>, #<FoodTruck:0x00007fe134910650...>]
# },
# }Graded Items:
- Return the creation date of an Event:
Event #date - Sell an Item at an Event:
Event #sell
Add a method to your Event class called sell that takes an item and a quantity as arguments. There are two possible outcomes of the sell method:
-
If the Event does not have enough of the item in stock to satisfy the given quantity, this method should return
false. -
If the Event's has enough of the item in stock to satisfy the given quantity, this method should return
true. Additionally, this method should reduce the stock of the FoodTrucks. It should look through the FoodTrucks in the order they were added and sell the item from the first FoodTruck with that item in stock. If that FoodTruck does not have enough stock to satisfy the given quantity, the FoodTruck's entire stock of that item will be depleted, and the remaining quantity will be sold from the next food_truck with that item in stock. It will follow this pattern until the entire quantity requested has been sold.
For example, suppose food_truck1 has 35 peach pies and food_truck3 has 65 peach pies, and food_truck1 was added to the event first. If the method sell(<ItemXXX, @name = 'Peach Pie'...>, 40) is called, the method should return true, food_truck1's new stock of peach pies should be 0, and food_truck3's new stock of peach pies should be 60.
Use TDD to update the Event class so that it responds to the following interaction pattern:
pry(main)> require 'date'
#=> true
pry(main)> require './lib/item'
#=> true
pry(main)> require './lib/food_truck'
#=> true
pry(main)> require './lib/event'
#=> true
pry(main)> item1 = Item.new({name: 'Peach Pie (Slice)', price: "$3.75"})
#=> #<Item:0x007f9c56740d48...>
pry(main)> item2 = Item.new({name: 'Apple Pie (Slice)', price: '$2.50'})
#=> #<Item:0x007f9c565c0ce8...>
pry(main)> item3 = Item.new({name: "Peach-Raspberry Nice Cream", price: "$5.30"})
#=> #<Item:0x007f9c562a5f18...>
pry(main)> item4 = Item.new({name: "Banana Nice Cream", price: "$4.25"})
#=> #<Item:0x007f9c56343038...>
pry(main)> item5 = Item.new({name: 'Onion Pie', price: '$25.00'})
#=> #<Item:0x007f9c561636c8...>
pry(main)> event = Event.new("South Pearl Street Farmers Market")
#=> #<Event:0x00007fe134933e20...>
pry(main)> event.date
#=> "24/02/2020"
# A event will now be created with a date - whatever date the event is created on through the use of `Date.today`. The addition of a date to the event should NOT break any previous tests. The `date` method will return a string representation of the date - 'dd/mm/yyyy'. We want you to test this in with a date that is IN THE PAST. In order to test the date method in a way that will work today, tomorrow and on any date in the future, you will need to use a stub :)
pry(main)> food_truck1 = FoodTruck.new("Rocky Mountain Pies")
#=> #<FoodTruck:0x00007fe1348a1160...>
pry(main)> food_truck1.stock(item1, 35)
pry(main)> food_truck1.stock(item2, 7)
pry(main)> food_truck2 = FoodTruck.new("Ba-Nom-a-Nom")
#=> #<FoodTruck:0x00007fe1349bed40...>
pry(main)> food_truck2.stock(item4, 50)
pry(main)> food_truck2.stock(item3, 25)
pry(main)> food_truck3 = FoodTruck.new("Palisade Peach Shack")
#=> #<FoodTruck:0x00007fe134910650...>
pry(main)> food_truck3.stock(item1, 65)
pry(main)> event.add_food_truck(food_truck1)
pry(main)> event.add_food_truck(food_truck2)
pry(main)> event.add_food_truck(food_truck3)
pry(main)> event.sell(item1, 200)
#=> false
pry(main)> event.sell(item5, 1)
#=> false
pry(main)> event.sell(item4, 5)
#=> true
pry(main)> food_truck2.check_stock(item4)
#=> 45
pry(main)> event.sell(item1, 40)
#=> true
pry(main)> food_truck1.check_stock(item1)
#=> 0
pry(main)> food_truck3.check_stock(item1)
#=> 60