lastTimeIdx = ''
currentRoll = []
lastRoll = []
buffCounts = {
  0 => 0,
  1 => 0,
  2 => 0,
  3 => 0,
  4 => 0,
  5 => 0,
  6 => 0
}

def check_buff(event, buff, roll_array)
  if event.include?(buff) and event.include?('gains')
    if not roll_array.include? buff
      roll_array.push(buff)
    end
  elsif event.include?(buff) and event.include?('fades')
    if roll_array.include? buff
      roll_array.delete(buff)
    end
  end
end

for fileno in 1..24
  File.open("#{fileno}.csv", 'r') do |csv|
    csv.gets #ignore first line
    while line = csv.gets
      parts = line.split(',')

      if parts[0] != lastTimeIdx
        lastTimeIdx = parts[0]
        lastRoll = currentRoll.clone()
      end

      #add previous rolls on new cast
      if parts[1].include?('casts') and parts[1].include?('Roll the Bones')
        buffCounts[lastRoll.length] += 1
        #puts parts[0] if lastRoll.length == 0
      end

      check_buff(parts[1], 'Jolly Roger', currentRoll)
      check_buff(parts[1], 'Broadsides', currentRoll)
      check_buff(parts[1], 'Buried Treasure', currentRoll)
      check_buff(parts[1], 'Shark Infested Waters', currentRoll)
      check_buff(parts[1], 'True Bearing', currentRoll)
      check_buff(parts[1], 'Grand Melee', currentRoll)
    end
  end
end

#add last cast
buffCounts[lastRoll.length] += 1

puts buffCounts