Russell's TakeAway Challenge

.gitignore

@@ -1,5 +1,8 @@
 /**/.DS_Store
 /coverage
 
+# Environment variables (including keys and phone number)
+.env
+
 # Local cache of Rubocop remote config
 .rubocop-*

Gemfile

@@ -10,4 +10,5 @@ end
 
 group :development, :test do
   gem 'rubocop', '1.20'
+  gem 'twilio-ruby'
 end

Gemfile.lock

@@ -5,9 +5,39 @@ GEM
     ast (2.4.2)
     diff-lcs (1.4.4)
     docile (1.4.0)
+    faraday (1.10.0)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0)
+      faraday-multipart (~> 1.0)
+      faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.0)
+      faraday-patron (~> 1.0)
+      faraday-rack (~> 1.0)
+      faraday-retry (~> 1.0)
+      ruby2_keywords (>= 0.0.4)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.0)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
+    faraday-multipart (1.0.3)
+      multipart-post (>= 1.2, < 3)
+    faraday-net_http (1.0.1)
+    faraday-net_http_persistent (1.2.0)
+    faraday-patron (1.0.0)
+    faraday-rack (1.0.0)
+    faraday-retry (1.0.3)
+    jwt (2.3.0)
+    mini_portile2 (2.8.0)
+    multipart-post (2.1.1)
+    nokogiri (1.13.4)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     parallel (1.20.1)
     parser (3.0.2.0)
       ast (~> 2.4.1)
+    racc (1.6.0)
     rainbow (3.0.0)
     regexp_parser (2.1.1)
     rexml (3.2.5)
@@ -36,6 +66,7 @@ GEM
     rubocop-ast (1.11.0)
       parser (>= 3.0.1.1)
     ruby-progressbar (1.11.0)
+    ruby2_keywords (0.0.5)
     simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
@@ -48,6 +79,10 @@ GEM
     simplecov_json_formatter (0.1.3)
     terminal-table (3.0.1)
       unicode-display_width (>= 1.1.1, < 3)
+    twilio-ruby (5.66.2)
+      faraday (>= 0.9, < 2.0)
+      jwt (>= 1.5, <= 2.5)
+      nokogiri (>= 1.6, < 2.0)
     unicode-display_width (2.0.0)
 
 PLATFORMS
@@ -58,6 +93,7 @@ DEPENDENCIES
   rubocop (= 1.20)
   simplecov
   simplecov-console
+  twilio-ruby
 
 RUBY VERSION
    ruby 3.0.2p107

README.md

@@ -14,13 +14,15 @@ Takeaway Challenge
 
  ```
 
-Instructions
+Instructions on how to use
 -------
 
-* Feel free to use google, your notes, books, etc. but work on your own
-* If you refer to the solution of another coach or student, please put a link to that in your README
-* If you have a partial solution, **still check in a partial solution**
-* You must submit a pull request to this repo with your code by 9am Monday morning
+* Open IRB. require './lib/order.rb'.
+* Create a new instance of Order.
+* Type order.menu.view_dishes to see the list of dishes with prices.
+* Type order.add_dish('Burger') to add a dish and see price.
+* Type order.view_order to see a subtotal and total of your order.
+* To finish the task I would Implement twilio text message so the customer would know their order was placed and would arrive at a certain time.
 
 Task
 -----

lib/menu.rb

@@ -0,0 +1,25 @@
+
+
+class Menu
+
+  attr_reader :dishes
+
+  def initialize
+
+    @dishes = {
+      "Burger" => 5,
+      "Chips" => 3,
+      "Hot Dog" => 4,
+      "Wings" => 3
+    }
+
+  end
+
+  def view_dishes
+    dishes.each { |item, price| p "#{item} £#{price}" }
+  end
+
+  def check_if_available(item)
+    raise 'That dish is not available. Please select another dish.' if @dishes[item].nil?
+  end
+end

lib/order.rb

@@ -0,0 +1,69 @@
+require_relative 'menu'
+require 'rubygems'
+require 'twilio-ruby'
+require 'time'
+require 'dotenv/load'
+
+class Order
+
+  attr_reader :menu, :customer_order
+
+  def initialize(menu = Menu.new)
+    @menu = menu
+    @customer_order = Hash.new(0)
+
+    account_sid = ENV['TWILIO_ACCOUNT_SID']
+    auth_token = ENV['TWILIO_AUTH_TOKEN']
+
+    @client = Twilio::REST::Client.new(account_sid, auth_token)
+
+  end
+
+  def add_dish(item)
+    @menu.check_if_available(item)
+    @customer_order[item] += @menu.dishes[item]
+  end
+
+  def view_order
+    order_subtotals
+    order_total
+  end
+
+  def place_order
+    send_text
+    "Thank you! Your order was placed and will be delivered by #{arrival_time}"
+  end
+
+  private 
+
+  def order_subtotals
+    @customer_order.each do |item, price|
+      if price.positive?
+        quantity = (@customer_order[item] / @menu.dishes[item]).round
+        puts "#{quantity}x #{item} £#{price}"
+      end
+    end
+  end
+
+  def checkout_total
+    @customer_order.select { |_, price| price.positive? }.values.reduce(:+)
+  end
+
+  def order_total
+    puts "=========="
+    puts "TOTAL: £#{checkout_total}"
+  end
+
+  def arrival_time
+    (Time.now + 1 * 60 * 60).strftime("%k:%M")
+  end
+
+  def send_text
+
+    @client.messages.create(
+    from: ENV['TWILIO_NUM'],
+    to: ENV['PHONE_NUM'],
+    body: "Thank you! Your order was placed and will be delivered by #{arrival_time}"
+    )
+  end
+end

spec/menu_spec.rb

@@ -0,0 +1,22 @@
+require 'menu'
+
+describe Menu do
+  describe '#view_dishes' do
+    it 'shows a list of dishes with prices' do
+
+      expect(subject.view_dishes).to eq({
+        "Burger" => 5,
+        "Chips" => 3,
+        "Hot Dog" => 4,
+        "Wings" => 3
+      })
+    end
+  end
+
+  describe '#check_if_available' do
+
+    it 'raises an error message if the dish is not available on the menu' do
+      expect { subject.check_if_available("Pie") }.to raise_error 'That dish is not available. Please select another dish.'
+    end
+  end
+end

spec/order_spec.rb

@@ -0,0 +1,46 @@
+require 'order'
+
+describe Order do
+
+  it 'creates an instance of Order' do
+    expect(subject).to be_instance_of(Order)
+  end
+
+  it 'has a default empty hash to store customer\'s order' do
+    expect(subject.customer_order).to eq Hash.new(0)
+  end
+
+  describe '#add_dish' do
+
+    it 'adds a dish to customer\'s order' do
+      expect { subject.add_dish('Burger') }.to change { subject.customer_order }.from(Hash.new(0)).to ({ 'Burger' => 5 })
+    end
+
+    it 'stores a dish in the customer\'s order' do
+      subject.add_dish('Burger')
+      expect(subject.customer_order).to include('Burger')
+    end
+  end
+
+  describe '#view_order' do
+
+    context 'customer\'s order contains dishes' do
+      before(:each) { subject.add_dish('Burger') }
+      before(:each) { subject.add_dish('Chips') }
+      before(:each) { subject.add_dish('Wings') }
+
+      it 'prints dishes from the customer\'s order with quantities, prices and total' do 
+        # using a HEREdoc
+        expect { subject.view_order }.to output(<<-order
+1x Burger £5
+1x Chips £3
+1x Wings £3
+==========
+TOTAL: £11
+order
+        ).to_stdout
+      end
+
+    end
+  end
+end