Add initial configuration and CoffeeShop model

Author: Alexandru Popescu

Gemfile

@@ -20,3 +20,8 @@ end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: %i[mingw mswin x64_mingw jruby]
+
+gem 'csv'
+gem 'httparty'
+gem 'pry'
+gem 'sinatra'

Gemfile.lock

@@ -2,18 +2,44 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
+    base64 (0.2.0)
+    bigdecimal (3.1.9)
     byebug (11.1.3)
+    coderay (1.1.3)
+    csv (3.3.2)
     diff-lcs (1.5.1)
+    httparty (0.22.0)
+      csv
+      mini_mime (>= 1.0.0)
+      multi_xml (>= 0.5.2)
     json (2.9.1)
     language_server-protocol (3.17.0.3)
+    logger (1.6.5)
+    method_source (1.1.0)
+    mini_mime (1.1.5)
+    multi_xml (0.7.1)
+      bigdecimal (~> 3.1)
+    mustermann (3.0.3)
+      ruby2_keywords (~> 0.0.1)
     nio4r (2.7.4)
     parallel (1.26.3)
     parser (3.3.7.0)
       ast (~> 2.4.1)
       racc
+    pry (0.15.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     puma (6.5.0)
       nio4r (~> 2.0)
     racc (1.8.1)
+    rack (3.1.8)
+    rack-protection (4.1.1)
+      base64 (>= 0.1.0)
+      logger (>= 1.6.0)
+      rack (>= 3.0.0, < 4)
+    rack-session (2.1.0)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0)
     rainbow (3.1.1)
     regexp_parser (2.10.0)
     rspec (3.13.0)
@@ -42,6 +68,15 @@ GEM
     rubocop-ast (1.37.0)
       parser (>= 3.3.1.0)
     ruby-progressbar (1.13.0)
+    ruby2_keywords (0.0.5)
+    sinatra (4.1.1)
+      logger (>= 1.6.0)
+      mustermann (~> 3.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.1.1)
+      rack-session (>= 2.0.0, < 3)
+      tilt (~> 2.0)
+    tilt (2.6.0)
     unicode-display_width (3.1.4)
       unicode-emoji (~> 4.0, >= 4.0.4)
     unicode-emoji (4.0.4)
@@ -52,9 +87,13 @@ PLATFORMS
 
 DEPENDENCIES
   byebug
+  csv
+  httparty
+  pry
   puma (~> 6.5)
   rspec (~> 3.10)
   rubocop
+  sinatra
   tzinfo-data
 
 RUBY VERSION

app.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+# app.rb
+require_relative 'config/environment'
+
+# Mount the controller
+map '/api' do
+  run CoffeeShopController
+end

app/models/coffee_shop.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class CoffeeShop
+  class InvalidCoordinatesError < StandardError; end
+
+  attr_reader :name, :latitude, :longitude
+
+  def initialize(name, latitude, longitude)
+    @name = validate_name(name)
+    @latitude = validate_coordinate(latitude.to_f, -90..90, 'Latitude')
+    @longitude = validate_coordinate(longitude.to_f, -180..180, 'Longitude')
+  end
+
+  def distance_to(user_lat, user_lon)
+    user_lat = validate_coordinate(user_lat.to_f, -90..90, 'User Latitude')
+    user_lon = validate_coordinate(user_lon.to_f, -180..180, 'User Longitude')
+
+    Math.sqrt(((user_lat - latitude)**2) + ((user_lon - longitude)**2)).round(4)
+  end
+
+  private
+
+  def validate_name(name)
+    name = name.to_s.strip
+    raise ArgumentError, 'Name cannot be empty' if name.empty?
+
+    name
+  end
+
+  def validate_coordinate(coord, range, name)
+    raise InvalidCoordinatesError, "#{name} must be a number" unless coord.is_a?(Numeric)
+    raise InvalidCoordinatesError, "#{name} out of range" unless range.include?(coord)
+
+    coord
+  end
+end

config/environment.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+require 'yaml'
+require 'logger'
+
+APP_CONFIG = YAML.load_file(File.join(__dir__, 'settings.yml')).transform_keys(&:to_sym)
+APP_LOGGER = Logger.new($stdout)
+
+Dir[File.join(__dir__, '../app/**/*.rb')].each { |file| require file }

config/settings.yml

@@ -0,0 +1 @@
+csv_url: 'https://raw.githubusercontent.com/Agilefreaks/test_oop/master/coffee_shops.csv'

spec/models/coffee_shop_spec.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require_relative '../../app/models/coffee_shop'
+
+RSpec.describe CoffeeShop do
+  describe '#initialize' do
+    it 'creates a valid coffee shop' do
+      shop = CoffeeShop.new('Test Shop', 45.0, -122.0)
+
+      expect(shop.name).to eq('Test Shop')
+      expect(shop.latitude).to eq(45.0)
+      expect(shop.longitude).to eq(-122.0)
+    end
+
+    it 'raises error for invalid coordinates' do
+      expect { CoffeeShop.new('Test', 100.0, 0) }.to raise_error(CoffeeShop::InvalidCoordinatesError)
+      expect { CoffeeShop.new('Test', 0, 200.0) }.to raise_error(CoffeeShop::InvalidCoordinatesError)
+    end
+
+    it 'raises error for empty name' do
+      expect { CoffeeShop.new('', 0, 0) }.to raise_error(ArgumentError)
+    end
+  end
+
+  describe '#distance_to' do
+    let(:shop) { CoffeeShop.new('Test', 0.0, 0.0) }
+
+    it 'calculates distance correctly' do
+      expect(shop.distance_to(3.0, 4.0)).to eq(5.0)
+      expect(shop.distance_to(1.0, 1.0)).to eq(1.4142)
+    end
+
+    it 'raises error for invalid user coordinates' do
+      expect { shop.distance_to(95.0, 0) }.to raise_error(CoffeeShop::InvalidCoordinatesError)
+    end
+  end
+end

spec/spec_helper.rb

@@ -17,6 +17,7 @@
 # See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
 
 require 'byebug'
+require 'pry'
 
 RSpec.configure do |config|
   # rspec-expectations config goes here. You can use an alternate