holiday_supplies.rb

holiday_supplies = {
  :winter => {
    :christmas => ["Lights", "Wreath"],
    :new_years => ["Party Hats"]
  },
  :summer => {
    :forth_of_july => ["Fireworks", "BBQ"]
  },
  :fall => {
    :thanksgiving => ["Turkey"]
  },
  :spring => {
    :memorial_day => ["BBQ"]
  }
}

# How would you access the second supply for the forth_of_july?

holiday_supplies[:summer][:forth_of_july][1]

# Add a supply to a Winter holiday.

holiday_supplies[:winter][:new_years] << "streamers"

# Add a supply to memorial day.

holiday_supplies[:spring][:memorial_day] << "flag"

# Add a new holiday to any season with supplies.

holiday_supplies[:fall] = {:halloween => ["pumpkin", "skeleton"]}

# Write a method to collect all Winter supplies from all the winter holidays. 

def winter_suppliers(supplies_hash, season)
  supplies_hash[season].each do |holiday, supplies|
    puts supplies
  end
end

winter_suppliers(holiday_supplies, :winter)

# Write a loop to list out all the supplies you have for each holiday and the season.

holiday_supplies.each do |season, holiday|
  puts "#{season.capitalize}:"
  holiday.each do |holiday, supplies|
    puts "#{holiday.capitalize}: #{supplies.join(" and ")}"
  end
end

# Write a method to collect all holidays with BBQ.
# holidays_with_bbqs(holiday_supplies) #=> [:fourth_of_july, :memorial_day]

def holidays_with_bbqs(holiday_supplies)
  holiday_supplies.each do |season, holiday|
    holiday.each do |holiday, supplies|
      if supplies.include?("BBQ")
        puts holiday
      end
    end
  end
end

holidays_with_bbqs(holiday_supplies)