game_data.rb

require 'pry'

games = [
  {
    home_team: "Patriots",
    away_team: "Broncos",
    home_score: 7,
    away_score: 3
  },
  {
    home_team: "Broncos",
    away_team: "Colts",
    home_score: 3,
    away_score: 0
  },
  {
    home_team: "Patriots",
    away_team: "Colts",
    home_score: 11,
    away_score: 7
  },
  {
    home_team: "Steelers",
    away_team: "Patriots",
    home_score: 7,
    away_score: 21
  }
]

# I would probably use a hash to store this data so that I could label the
# wins and the losses.
#
# scores = {
#   "Patriots" => [0,0],
#   "Broncos" => [0,0],
#   "Colts" => [0,0],
#   "Steelers" => [0,0]
# }

scores = {
  "Patriots" => { wins: 0, losses: 0 },
  "Broncos" => { wins: 0, losses: 0 },
  "Colts" => { wins: 0, losses: 0 },
  "Steelers" => { wins: 0, losses: 0 }
}

games.each do |game|
  if game[:home_score] > game[:away_score]
    scores[game[:home_team]][:wins] += 1 
    scores[game[:away_team]][:losses] += 1
  else
    scores[game[:away_team]][:wins] += 1 
    scores[game[:home_team]][:losses] += 1 
  end
end

scores = scores.sort_by { |key, val| -val[:wins] }

scores.each do |key, val|
  puts "#{key} #{val[:wins]} wins, #{val[:losses]} losses" 
end