Zion Mekonnen - IC Week 6 retake

README.md

@@ -109,33 +109,33 @@ pry(main)> auction.add_item(item4)
 
 pry(main)> auction.add_item(item5)
 
-pry(main)> item1.bids
+#pry(main)> item1.bids
 #=> {}
 
-pry(main)> item1.add_bid(attendee2, 20)
+#pry(main)> item1.add_bid(attendee2, 20)
 
-pry(main)> item1.add_bid(attendee1, 22)
+#pry(main)> item1.add_bid(attendee1, 22)
 
-pry(main)> item1.bids
+#pry(main)> item1.bids
 #=> {
 #     #<Attendee:0x00007fdc071131c8 ...> => 20,
 #     #<Attendee:0x00007fdc088f0e08 ...> => 22
 #   }
 
-pry(main)> item1.current_high_bid
+#pry(main)> item1.current_high_bid
 #=> 22
 
-pry(main)> item4.add_bid(attendee3, 50)
+#pry(main)> item4.add_bid(attendee3, 50)
 
-pry(main)> auction.unpopular_items
+#pry(main)> auction.unpopular_items
 #=> [#<Item:0x00007fdc07925280 ...>, #<Item:0x00007fdc071ab040 ...>, #<Item:0x00007fdc071695f0 ...>]
 
-pry(main)> item3.add_bid(attendee2, 15)
+#pry(main)> item3.add_bid(attendee2, 15)
 
-pry(main)> auction.unpopular_items
+#pry(main)> auction.unpopular_items
 #=> [#<Item:0x00007fdc07925280 ...>, #<Item:0x00007fdc071695f0 ...>]
 
-pry(main)> auction.potential_revenue
+#pry(main)> auction.potential_revenue
 #=> 87
 
 ```

lib/attendee.rb

@@ -0,0 +1,8 @@
+class Attendee
+    attr_reader :name, :budget
+
+    def initialize(details)
+        @name = details[:name]
+        @budget = details[:budget].delete('$').to_i
+    end
+end

lib/auction.rb

@@ -0,0 +1,46 @@
+class Auction
+    attr_reader :items
+    def initialize
+        @items = []
+    end
+
+    def add_item(item)
+        @items << item
+    end
+
+    def item_names
+        @items.map do |item|
+            item.name
+        end
+    end
+
+    def unpopular_items
+        @items.find_all do |item|
+            item.bids.empty?
+        end
+    end
+
+    # def potential_revenue
+    #     total_revenue = 0
+    #     @items.each do |item|
+    #       total_revenue += item.current_high_bid if item.current_high_bid
+    #     end
+    #     total_revenue
+    # end
+
+    def potential_revenue 
+        @items.sum do |item|
+            item.current_high_bid || 0
+        end
+    end
+
+    # def bidders
+    #     @items.flat_map do |item|
+    #         item.bids.keys.compact.map do |attendee|
+    #             attendee.name
+    #         end
+    #     end.uniq
+
+    # end
+
+end

lib/item.rb

@@ -0,0 +1,16 @@
+class Item
+    attr_reader :name, :bids
+
+    def initialize(name)
+        @name = name
+        @bids = {}
+    end
+
+    def add_bid(attendee, amount)
+        @bids[@attendee] = amount
+    end
+
+    def current_high_bid
+        @bids.values.max
+    end
+end

spec/attendee_spec.rb

@@ -0,0 +1,20 @@
+require './lib/attendee'
+require 'rspec'
+
+RSpec.describe Attendee do
+    before(:each) do
+        @attendee = Attendee.new({name: 'Megan', budget: '$50'})
+        @attendee2 = Attendee.new({name: 'Bob', budget: '$75'})
+        @attendee3 = Attendee.new({name: 'Mike', budget: '$100'})
+
+    end
+
+    it 'exists and has attributes' do
+        expect(@attendee).to be_an_instance_of(Attendee)
+        expect(@attendee.name).to eq('Megan')
+        expect(@attendee.budget).to eq(50)
+        expect(@attendee2.name).to eq('Bob')
+        expect(@attendee3.name).to eq('Mike')
+
+    end
+end

spec/auction_spec.rb

@@ -0,0 +1,87 @@
+require './lib/auction'
+require './lib/item'
+require './lib/attendee'
+require 'rspec'
+
+RSpec.describe Auction do
+    before(:each) do
+        @auction = Auction.new
+
+        @attendee1 = Attendee.new({name: 'Megan', budget: '$50'})
+        @attendee2 = Attendee.new({name: 'Bob', budget: '$75'})
+        @attendee3 = Attendee.new({name: 'Mike', budget: '$100'})
+
+        @item1 = Item.new('Chalkware Piggy Bank')
+        @item2 = Item.new('Bamboo Picture Frame')
+        @item3 = Item.new('Homemade Chocolate Chip Cookies')
+        @item4 = Item.new('2 Days Dogsitting')
+        @item5 = Item.new('Forever Stamps')
+
+    end
+
+
+    it 'exists' do
+        expect(@auction).to be_an_instance_of(Auction)
+        expect(@auction.items).to eq([])
+    end
+
+
+    it 'adds items to the auction' do
+        @auction.add_item(@item1)
+        @auction.add_item(@item2)
+        @auction.add_item(@item3)
+        @auction.add_item(@item4)
+        @auction.add_item(@item5)
+
+        expect(@auction.items).to eq([@item1, @item2, @item3, @item4, @item5])
+    end
+
+    it 'returns names of items' do
+        @auction.add_item(@item1)
+        @auction.add_item(@item2)
+        @auction.add_item(@item3)
+        @auction.add_item(@item4)
+        @auction.add_item(@item5)
+
+        expect(@auction.item_names).to eq(['Chalkware Piggy Bank', 'Bamboo Picture Frame', 'Homemade Chocolate Chip Cookies', '2 Days Dogsitting', 'Forever Stamps'])
+    end
+
+    it 'returns items with no bid and calculates potential revenue' do
+        @auction.add_item(@item1)
+        @auction.add_item(@item2)
+        @auction.add_item(@item3)
+        @auction.add_item(@item4)
+        @auction.add_item(@item5)
+
+        @item1.add_bid(@attendee2, 20)
+        @item1.add_bid(@attendee1, 22)
+        @item4.add_bid(@attendee3, 50)
+
+        expect(@auction.unpopular_items).to eq([@item2, @item3, @item5])
+
+        @item3.add_bid(@attendee2, 15)
+        expect(@auction.unpopular_items).to eq([@item2, @item5])
+
+        expect(@auction.potential_revenue).to eq(87)
+    end
+
+    # it 'returns the name of the attendees that made a bid' do 
+    #     @auction.add_item(@item1)
+    #     @auction.add_item(@item2)
+    #     @auction.add_item(@item3)
+    #     @auction.add_item(@item4)
+    #     @auction.add_item(@item5)
+
+    #     @item1.add_bid(@attendee1, 22)
+    #     @item1.add_bid(@attendee2, 20)
+    #     @item4.add_bid(@attendee3, 50)
+
+    #     expect(@auction.bidders).to eq(['Megan', 'Bob', 'Mike'])
+    # end
+
+
+end
+
+
+
+

spec/item_spec.rb

@@ -0,0 +1,24 @@
+require './lib/item'
+require 'rspec'
+
+RSpec.describe Item do
+    before(:each) do
+        @item1 = Item.new('Chalkware Piggy Bank')
+    end
+
+    it 'exists and has attributes' do
+        expect(@item1).to be_an_instance_of(Item)
+        expect(@item1.name).to eq('Chalkware Piggy Bank')
+        expect(@item1.bids).to eq({})
+    end
+
+    it 'can add bids and returns the sum of all the highest bids' do 
+        @item1.add_bid(@attendee2, 20)
+        @item1.add_bid(@attendee1, 22)
+
+        expect(@item1.bids).to eq({@attendee2 => 20, @attendee1 => 22})
+        expect(@item1.current_high_bid).to eq(22)
+
+    end
+
+end