module Genpasswd

# File lib/genpasswd.rb, line 7
def generate_set(length = 6)
  ('a'..'z').to_a.shuffle[0, length].join
end

# File lib/genpasswd.rb, line 12
def insert_capital(string, count = 1)
  arr = []
  str = string.downcase
  while arr.length < count
    r = rand(str.size - 1)
    if !!str[r].match(/^(\d)+$/)
    else
      arr << r
      arr.uniq!
    end
  end
  arr.each do |i|
    str[i] = str[i].upcase
  end
  return str
end

# File lib/genpasswd.rb, line 30
def insert_number(string, count = 1)
  arr = []
  str = string.downcase
  while arr.length < count
    arr << rand(str.size - 1)
    arr.uniq!
  end
  arr.each do |i|
    str[i] = rand(9).to_s
  end
  return str
end

# File lib/genpasswd.rb, line 49
def make
  password = ''
  3.times do
    password += generate_set(6)
  end
  password = insert_number(password)
  password = insert_capital(password)
  return prepare(password)
end

# File lib/genpasswd.rb, line 43
def prepare(str, count = 6)
  arr = str.chars.each_slice(count).map(&:join)
  arr.join('-')
end