pigeon-data.rb

########################
# NYC PIGEON ORGANIZER #
########################

# Start with the following collected data on NYC pigeons.

pigeon_data = {
  :color => {
    :purple => ["Theo", "Peter Jr.", "Lucky"],
    :grey => ["Theo", "Peter Jr.", "Ms .K"],
    :white => ["Queenie", "Andrew", "Ms .K", "Alex"],
    :brown => ["Queenie", "Alex"]
  },
  :gender => {
    :male => ["Alex", "Theo", "Peter Jr.", "Andrew", "Lucky"],
    :female => ["Queenie", "Ms .K"]
  },
  :lives => {
    "Subway" => ["Theo", "Queenie"],
    "Central Park" => ["Alex", "Ms .K", "Lucky"],
    "Library" => ["Peter Jr."],
    "City Hall" => ["Andrew"]
  }
}

pigeon_list = {}

def add_attribute(list,name, category,attribute)
  if list[name][category].nil?
    list[name][category] = [attribute]
  else  
    list[name][category] << attribute
  end
end

pigeon_data.each do |category_key,attribute_value|
  attribute_value.each do |attribute_key, names_array_value|
    names_array_value.each do |name|
      pigeon_list[name] = {} if pigeon_list[name].nil?
      add_attribute(pigeon_list,name, category_key,attribute_key)
    end
  end
end

puts pigeon_list


# pigeon_list = {}
 
# def set_new_attribute(list, name, category, attribute)
#   if list[name][category].nil?
#     list[name][category] = [attribute]
#   else
#     list[name][category] << attribute
#   end
# end
 
# pigeon_data.each do |category, attr_hash|
#   attr_hash.each do |attribute, pigeons_with_attr|
#     pigeons_with_attr.each do |name|
      
#       pigeon_list[name] = {} if pigeon_list[name].nil?
#       set_new_attribute(pigeon_list, name, category, attribute)
 
#     end
#   end
# end
 
# puts pigeon_list
 


# Iterate over the hash above collecting each pigeon by name and insert it
# as the key of a new hash where each name holds the attributes for that bird. 
# Your output should match the hash below:

# pigeon_list = {
#   "Theo" => {
#     :color => ["purple", "grey"],
#     :gender => "male",
#     :lives => "Subway"
#   },
#   "Peter Jr." => {
#     :color => ["purple", "grey"],
#     :gender => "male",
#     :lives => "Library"
#   },
#   "Lucky" => {
#     :color => ["purple"],
#     :gender => "male",
#     :lives => "City Hall"
#   },
#   "Ms .K" => {
#     :color => ["grey", "white"],
#     :gender => "female",
#     :lives => "Central Park"
#   },
#   "Queenie" => {
#     :color => ["white", "brown"],
#     :gender => "female",
#     :lives => "Subway"
#   },
#   "Andrew" => {
#     :color => ["white"],
#     :gender => "male",
#     :lives => "Central Park"
#   },
#   "Alex" => {
#     :color => ["white", "brown"],
#     :gender => "male",
#     :lives => "Central Park"
#   }
# }