proposal.rb

#created by:  Eduardo Zaghi
#idea base:   https://chop-chop.org/order-now.html

require 'action_view'

class Proposal
  include ActionView::Helpers::NumberHelper

  HTML_PRICE      = 150
  HTML_HALF_PRICE = HTML_PRICE / 2
  CSS3_PRICE      = 75

  SERVICES = {
    rails:      {
                  crud:                150,
                  sortable:            75,
                  images_uploads:      75,
                  publish_model:       75, 
                  publisher_structure: 150,
                  public_view_dinamic: 75,
                  send_email:          75
                },
    markup:     {
                  html_5:                  0, 
                  html_5_fluid:            75, 
                  html_5_responsive:       150, 
                  html_5_fluid_responsive: 150
                },
    stylesheet: {
                  css_3:           0,
                  css_3_commented: 9,
                  web_font:        75
                },
    javascript: {
                  jquery:         0,
                  image_gallery: 150,
                  carrousel:     75,
                  slide_show:    150,
                  lightbox:      75,
                  menu_dropdown: 75,
                  custom_scroll: 150,
                  ajax_form:     150,
                  google_maps:   75,
                  video_embed:   75
                },
    social_btn: {
                  facebook_like_and_fan_box: 40,
                  twitter_tweet_and_feed:    40,
                  google_plus:               40,
                  share_this_or_add_this:    75
                }
  }

  attr_accessor :title, :pages, :total
  
  def initialize(options={})
    @pages   = options[:pages]
    @total   = 0
    @title   = options[:title] || 'LolDesign Proposal'
  end

  def process
    print_header

    calculate

    print_footer
  end

  private
  def print_header
    puts "\n"
    puts @title
    puts '-----------------------------------'
  end

  def print_footer
    puts '-----------------------------------'
    puts "Total: #{ActionView::Base.new.number_to_currency(@total)}"
  end

  def calculate
    @pages.each_key do |page_name|
      sum    =  page_total(@pages[page_name])
      @total += sum
      puts "#{page_name}: #{to_currency(sum)}"
    end
  end

  def page_total(included_services)
    costs = included_services.inject([]){|array, name| array.push get_service_price(name)}

    sum_costs(costs)
  end

  def get_service_price(name)
    find_service(name)
  end

  def find_service(name)
    SERVICES.each_key do |key|
      return SERVICES[key][name] if SERVICES[key].has_key?(name)
    end
  end

  def sum_costs(costs)
    (html_half_price? ? HTML_HALF_PRICE : HTML_PRICE) + CSS3_PRICE + costs.inject{|sum,x| sum + x }
  end

  def to_currency(value)
    ActionView::Base.new.number_to_currency(value)
  end
  def html_half_price?
    @total > 0
  end
end

#static project
Proposal.new(
  title: 'Static Project',
  pages: {
          home:             [ :html_5, :css_3, :jquery, :slide_show, :facebook_like_and_fan_box, :twitter_tweet_and_feed, :google_plus, :ajax_form ],
          about:            [ :html_5, :css_3, :jquery ],
          tips_and_recipes: [ :html_5, :css_3, :jquery, :share_this_or_add_this, :image_gallery ],
          services:         [ :html_5, :css_3, :jquery, :share_this_or_add_this ],
          covenants:        [ :html_5, :css_3, :jquery ],
          contacts:         [ :html_5, :css_3, :jquery, :google_maps, :send_email ]
       }).process

#dinamic project
Proposal.new(
  title: 'Dinamic Project',
  pages: {
          essentials:       [ :publisher_structure ],
          home:             [ :html_5, :css_3, :jquery, :slide_show, :facebook_like_and_fan_box, :twitter_tweet_and_feed, :google_plus, :ajax_form, :public_view_dinamic ],
          about:            [ :html_5, :css_3, :jquery, :crud, :public_view_dinamic ],
          tips_and_recipes: [ :html_5, :css_3, :jquery, :share_this_or_add_this, :image_gallery, :crud, :images_uploads, :public_view_dinamic ],
          services:         [ :html_5, :css_3, :jquery, :share_this_or_add_this, :crud, :image_gallery, :sortable, :public_view_dinamic ],
          covenants:        [ :html_5, :css_3, :jquery, :crud, :sortable ],
          contacts:         [ :html_5, :css_3, :jquery, :google_maps, :send_email ]
       }).process