tig-o/auction_2203

Instructions

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Iteration 1 - Items, Attendees & Auctions

Graded Items:

Create an Item: Item.new
Create an Attendee: Attendee.new
Create an Auction: Auction.new
Add an Item to an Auction: Auction #add_item
Return the list of item names from an Auction: Auction #item_names

Use TDD to create Item, Attendee, & Auction that will respond to the interaction pattern below:

pry(main)> require './lib/item'
#=> true
pry(main)> require './lib/auction'
#=> true
pry(main)> require './lib/attendee'
#=> true

pry(main)> item1 = Item.new('Chalkware Piggy Bank')
#=> #<Item:0x00007fbda98fa1b0 @bids={}, @name="Chalkware Piggy Bank">

pry(main)> item1.name
#=> "Chalkware Piggy Bank"

pry(main)> item2 = Item.new('Bamboo Picture Frame')
#=> #<Item:0x00007fbda91874f0 @bids={}, @name="Bamboo Picture Frame">

pry(main)> attendee = Attendee.new({name: 'Megan', budget: '$50'})
#=> #<Attendee:0x00007fbda913f038 @budget=50, @name="Megan">

pry(main)> attendee.name
#=> "Megan"

pry(main)> attendee.budget
#=> 50

pry(main)> auction = Auction.new
#=> #<Auction:0x00007fbda90f1cc0 @items=[]>

pry(main)> auction.items
#=> []

pry(main)> auction.add_item(item1)
pry(main)> auction.add_item(item2)

pry(main)> auction.items
#=> [#<Item:0x00007fbda98fa1b0 ...>, #<Item:0x00007fbda91874f0 ...>]

pry(main)> auction.item_names
#=> ["Chalkware Piggy Bank", "Bamboo Picture Frame"]

Iteration 2 - Bidding!

Graded Items:

Add a bid to an Item: Item #add_bid
Return the current high bid of an Item: Item #current_high_bid
Return the list of unpopular items from an Auction: Auction #unpopular_items
Return the potential revenue from an Auction: Auction #potential_revenue

Use TDD to update your classes to respond to the following interaction pattern. Some notes:

unpopular_items are those items which have no bids.
potential_revenue is the total possible sale price of the items (the items highest bid)

pry(main)> require './lib/item'
#=> true

pry(main)> require './lib/auction'
#=> true

pry(main)> require './lib/attendee'
#=> true

pry(main)> item1 = Item.new('Chalkware Piggy Bank')
#=> #<Item:0x00007fdc07956ab0 @bids={}, @name="Chalkware Piggy Bank">

pry(main)> item2 = Item.new('Bamboo Picture Frame')
#=> #<Item:0x00007fdc07925280 @bids={}, @name="Bamboo Picture Frame">

pry(main)> item3 = Item.new('Homemade Chocolate Chip Cookies')
#=> #<Item:0x00007fdc071ab040 @bids={}, @name="Homemade Chocolate Chip Cookies">

pry(main)> item4 = Item.new('2 Days Dogsitting')
#=> #<Item:0x00007fdc088fb6f0 @bids={}, @name="2 Days Dogsitting">

pry(main)> item5 = Item.new('Forever Stamps')
#=> #<Item:0x00007fdc071695f0 @bids={}, @name="Forever Stamps">

pry(main)> attendee1 = Attendee.new({name: 'Megan', budget: '$50'})
#=> #<Attendee:0x00007fdc088f0e08 @budget=50, @name="Megan">

pry(main)> attendee2 = Attendee.new({name: 'Bob', budget: '$75'})
#=> #<Attendee:0x00007fdc071131c8 @budget=75, @name="Bob">

pry(main)> attendee3 = Attendee.new({name: 'Mike', budget: '$100'})
#=> #<Attendee:0x00007fdc070e2190 @budget=100, @name="Mike">

pry(main)> auction = Auction.new
#=> #<Auction:0x00007fdc0799de60 @items=[]>

pry(main)> auction.add_item(item1)

pry(main)> auction.add_item(item2)

pry(main)> auction.add_item(item3)

pry(main)> auction.add_item(item4)

pry(main)> auction.add_item(item5)

pry(main)> item1.bids
#=> {}

pry(main)> item1.add_bid(attendee2, 20)

pry(main)> item1.add_bid(attendee1, 22)

pry(main)> item1.bids
#=> {
#     #<Attendee:0x00007fdc071131c8 ...> => 20,
#     #<Attendee:0x00007fdc088f0e08 ...> => 22
#   }

pry(main)> item1.current_high_bid
#=> 22

pry(main)> item4.add_bid(attendee3, 50)

pry(main)> auction.unpopular_items
#=> [#<Item:0x00007fdc07925280 ...>, #<Item:0x00007fdc071ab040 ...>, #<Item:0x00007fdc071695f0 ...>]

pry(main)> item3.add_bid(attendee2, 15)

pry(main)> auction.unpopular_items
#=> [#<Item:0x00007fdc07925280 ...>, #<Item:0x00007fdc071695f0 ...>]

pry(main)> auction.potential_revenue
#=> 87

Iteration 3 - More bidding stuff!

Graded Items:

Return the list of bidder names from an Auction: Auction #bidders
Close bidding on an Item: Item #close_bidding
Return a hash of bidder information: Auction #bidder_info

Use TDD to update your classes to respond to the following interaction pattern. Some notes:

bidders should list the names of each attendee that bid on the item.
close_bidding should update the item so that it will not accept additional bids.
bidder_info should return a hash with keys that are attendees, and values that are a hash with that attendee's budget and an array of items that attendee has bid on.

pry(main)> require './lib/item'
#=> true

pry(main)> require './lib/auction'
#=> true

pry(main)> require './lib/attendee'
#=> true

pry(main)> item1 = Item.new('Chalkware Piggy Bank')
#=> #<Item:0x00007ff17702e2a0 ...>

pry(main)> item2 = Item.new('Bamboo Picture Frame')
#=> #<Item:0x00007ff178094130 ...>

pry(main)> item3 = Item.new('Homemade Chocolate Chip Cookies')
#=> #<Item:0x00007ff177ae45f0 ...>

pry(main)> item4 = Item.new('2 Days Dogsitting')
#=> #<Item:0x00007ff177a9d858 ...>

pry(main)> item5 = Item.new('Forever Stamps')
#=> #<Item:0x00007ff17704e140 ...>

pry(main)> attendee1 = Attendee.new({name: 'Megan', budget: '$50'})
#=> #<Attendee:0x00007ff177a45108 ...>

pry(main)> attendee2 = Attendee.new({name: 'Bob', budget: '$75'})
#=> #<Attendee:0x00007ff17816a4b0 ...>

pry(main)> attendee3 = Attendee.new({name: 'Mike', budget: '$100'})
#=> #<Attendee:0x00007ff177a0f5f8 ...>

pry(main)> auction = Auction.new
#=> #<Auction:0x00007ff17799e038 ...>

pry(main)> auction.add_item(item1)

pry(main)> auction.add_item(item2)

pry(main)> auction.add_item(item3)

pry(main)> auction.add_item(item4)

pry(main)> auction.add_item(item5)

pry(main)> item1.add_bid(attendee1, 22)

pry(main)> item1.add_bid(attendee2, 20)

pry(main)> item4.add_bid(attendee3, 50)

pry(main)> item3.add_bid(attendee2, 15)

pry(main)> auction.bidders
#=> ["Megan", "Bob", "Mike"]

pry(main)> item1.bids
#=> {#<Attendee:0x00007ff177a45108 ...> => 22, #<Attendee:0x00007ff17816a4b0 ...> => 20}

pry(main)> item1.close_bidding

pry(main)> item1.add_bid(@attendee3, 70)

pry(main)> item1.bids
#=> {#<Attendee:0x00007ff177a45108 ...> => 22, #<Attendee:0x00007ff17816a4b0 ...> => 20}

pry(main)> auction.bidder_info
#=> {
 #    #<Attendee:0x00007ff177a45108 @budget=50, @name="Megan"> =>
 #      {
 #        :budget => 50,
 #        :items => [#<Item:0x00007ff17702e2a0 ...>]
 #      },
 #    #<Attendee:0x00007ff17816a4b0 @budget=75, @name="Bob"> =>
 #      {
 #        :budget => 75,
 #        :items => [#<Item:0x00007ff17702e2a0...>, #<Item:0x00007ff177ae45f0 ...>]
 #      },
 #    #<Attendee:0x00007ff177a0f5f8 @budget=100, @name="Mike"> =>
 #      {
 #        :budget => 100,
 #        :items => [#<Item:0x00007ff177a9d858...>]
 #      }
 #   }

Iteration 4 - Dates! And closing the auction

Graded Items:

Return the creation date of an Auction: Auction #date
Close an Auction: Auction #close_auction

Use TDD to update your classes to respond to the following interaction pattern. Some notes:

An Auction 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 :)
close_auction should close bidding and 'sell' items to attendees. The method will return a hash with items as the keys, and the purchaser of that item as the values. Attendees will only purchase items that they can afford (their bid is less than their current budget). If an attendee has bid on multiple items, they will purchase the items starting with the most expensive first, followed by the next most expensive, etc... while they still have enough money in their budget to pay for the item. If the highest bidder for an item does not have enough budget to pay for the item, the next highest bidder will purchase the item.

pry(main)> require 'date'
#=> true

pry(main)> require './lib/item'
#=> true

pry(main)> require './lib/auction'
#=> true

pry(main)> require './lib/attendee'
#=> true

pry(main)> item1 = Item.new('Chalkware Piggy Bank')
#=> #<Item:0x00007f9ea5af30c0 ...>

pry(main)> item2 = Item.new('Bamboo Picture Frame')
#=> #<Item:0x00007f9ea5a5a190 ...>

pry(main)> item3 = Item.new('Homemade Chocolate Chip Cookies')
#=> #<Item:0x00007f9ea5910c08 ...>

pry(main)> item4 = Item.new('2 Days Dogsitting')
#=> #<Item:0x00007f9ea5c08f00 ...>

pry(main)> item5 = Item.new('Forever Stamps')
#=> #<Item:0x00007f9ea5bc0480 ...>

pry(main)> attendee1 = Attendee.new({name: 'Megan', budget: '$50'})
#=> #<Attendee:0x00007f9ea5b73f40 ...>

pry(main)> attendee2 = Attendee.new({name: 'Bob', budget: '$75'})
#=> #<Attendee:0x00007f9ea50c4748 ...>

pry(main)> attendee3 = Attendee.new({name: 'Mike', budget: '$100'})
#=> #<Attendee:0x00007f9ea50b5b58 ...>

pry(main)> auction = Auction.new
#=> #<Auction:0x00007f9ea5ad0c00 ...>

pry(main)> auction.add_item(item1)

pry(main)> auction.add_item(item2)

pry(main)> auction.add_item(item3)

pry(main)> auction.add_item(item4)

pry(main)> auction.add_item(item5)

pry(main)> auction.date
#=> "24/02/2020"

pry(main)> item1.add_bid(attendee1, 22)

pry(main)> item1.add_bid(attendee2, 20)

pry(main)> item4.add_bid(attendee2, 30)

pry(main)> item4.add_bid(attendee3, 50)

pry(main)> item3.add_bid(attendee2, 15)

pry(main)> item5.add_bid(attendee1, 35)

pry(main)> auction.close_auction
#=>
# {
#   #<Item:0x00007f9ea5af30c0 ...> => #<Attendee:0x00007f9ea50c4748 ...>,
#   #<Item:0x00007f9ea5a5a190 ...> => 'Not Sold',
#   #<Item:0x00007f9ea5910c08 ...> => #<Attendee:0x00007f9ea50c4748 ...>,
#   #<Item:0x00007f9ea5c08f00 ...> => #<Attendee:0x00007f9ea50b5b58 ...>,
#   #<Item:0x00007f9ea5bc0480 ...> => #<Attendee:0x00007f9ea5b73f40 ...>
# }
#

tig-o / auction_2203

Instructions

Iteration 1 - Items, Attendees & Auctions

Iteration 2 - Bidding!

Iteration 3 - More bidding stuff!

Iteration 4 - Dates! And closing the auction

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