Class: CommandLineInterface

Inherits:
Object
  • Object
show all
Defined in:
lib/command_line_interface.rb

Constant Summary collapse

CATEGORIES = 
Category.get_category_list

Instance Method Summary collapse

Instance Method Details

#format_categories(array, string = "") ⇒ Object 



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# File 'lib/command_line_interface.rb', line 90

def format_categories(array, string = "")
  head = "\"" + array[0].split.map{|word| word.capitalize}.join(" ") + "\""
  tail = array[1..-1]
  if tail.empty?
    string == ""? head : string + ", or " + head
  else
    string = string == ""? head : string + ", " + head
    format_categories(tail, string)
  end
end

#get_location ⇒ Object 



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# File 'lib/command_line_interface.rb', line 17

def get_location
  puts "Hi!  Where do you want to have dinner tonight?"
  location = gets.strip
end

#get_preferences(input) ⇒ Object 



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# File 'lib/command_line_interface.rb', line 52

def get_preferences(input)
  validated_categories = []
  if input.strip == ""
    validated_categories
  else
    user_categories = input
      .split(/[,][ ]*/)
      .select {|string| !string.include? ","}
      .map {|string| string.strip}
    user_categories.each do |user_category|
      if CATEGORIES.map{|category| category.title.downcase}.include? user_category.downcase
        validated_categories << user_category.downcase
      else
        suggested_categories = suggested_categories(user_category).map{|category| category.title}
        formatted_categories = format_categories(suggested_categories)
        puts "I'm sorry, I didn't understand \"#{user_category}\".  Did you mean #{formatted_categories}?"
        recover_category = gets
          .split(/[,][ ]*/)
          .select {|string| !string.include? ","}
          .first
        get_preferences(recover_category).each {|category| validated_categories << category}
      end
    end
    validated_categories.uniq
  end
end

#get_users ⇒ Object 



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# File 'lib/command_line_interface.rb', line 22

def get_users
  users = []
  loop do
    puts "What's your name?"
    name = gets.strip
    puts "What are you in the mood for today?"
    likes = get_preferences(gets)
    puts "What don't you want to eat?"
    dislikes = get_preferences(gets)
    user = User.new(name, likes, dislikes)
    users << user
    break unless yes?("Is anyone else joining you?")
  end
  users
end

#make_recommendation(restaurant) ⇒ Object 



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# File 'lib/command_line_interface.rb', line 38

def make_recommendation(restaurant)
  puts "How about?"
  puts ""
  puts restaurant.name
  puts "#{restaurant.rating} star rating, #{restaurant.review_count} reviews"
  puts restaurant.categories.map{|category| category.title}.join(", ")
  puts ""
  puts restaurant.display_address
  puts restaurant.display_phone
  puts ""
  puts "\"#{restaurant.snippet_text}\""
  puts ""
end

#run ⇒ Object 



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# File 'lib/command_line_interface.rb', line 5

def run
  location = get_location
  users = get_users
  whats_for_dinner = WhatsForDinner.new(location, users)
  loop do
    restaurant = whats_for_dinner.ask
    make_recommendation(restaurant)
    break if yes?("Sound good?")
  end
  puts "Great!  Thanks for using What's For Dinner?, powered by Yelp."
end

#suggested_categories(input, categories = CATEGORIES, characters = 0) ⇒ Object 



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# File 'lib/command_line_interface.rb', line 79

def suggested_categories(input, categories = CATEGORIES, characters = 0)
  suggestions = categories
    .select {|category| category.title.downcase[0, characters] == input.downcase[0, characters]}
    .compact
  if suggestions.empty? || suggested_categories(input, suggestions, characters + 1).empty?
    suggestions
  else
    suggested_categories(input, suggestions, characters + 1)
  end
end

#yes?(prompt) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/command_line_interface.rb', line 101

def yes?(prompt)
  puts prompt
  case gets.strip.downcase
  when "yes"
    true
  when "no"
    false
  else
    puts "I'm sorry, I didn't understand you.  Please say \"Yes\" or \"No\"."
    yes?(prompt)
  end
end