ryanveroniwooff

# What is a data type?
# - Data types are the specified types of data stored by variables
# What are variables?
# - Variables are named objects created to store data in a location in the computers memory
# What do variables do?
# - Variables make it easier to work with data that we may not know yet, or may need to perform multiple operations
# - Generally it is best practice to name variables in a way that makes sense, and usually relates to the variables data type or the data itself
# Let's take a look at some examples

# In ruby, we output data by using the puts command:

ryanveroniwooff

# Your challenge should you choose to accept it:
#****************
#*   Preface   **
#**************************************************************************************************
# Build a cipher to decode the message: "J\\wgdm\x1Ehq\x1D>mlhne-\x1EP`nsdm`dp\x1D,1sg!\x1E9'"   **
# This message is passed as an argument(input) to the encrypt method along with a key            **
# pp is better for testing than puts xD						 	 	 **	 	 	 	 	 	  	 	 	 	 	 	 	  	 	 	 	 		 **
# program inherently outputs the return of the encrypt funcion by calling it in a pp statement ;)**
#**************************************************************************************************
#****************************

ryanveroniwooff

def encode(message, key)
  c = key.to_s.split('').map { |e| e.to_i }.cycle #setup key cycle
  letter_hash = Hash[('a'..'z').zip(1..26)] #hash containing 'a' => 1, 'b' => 2, and so on...
  message.split('').map { |e| letter_hash.fetch(e,e) + c.next} #encode vlaues
end

def decode(code, key)
  c = key.to_s.split('').map { |e| e.to_i }.cycle #setup key cycle
  h = Hash[(1..26).zip('a'..'z')] #hash containing 1 => 'a', 2=> 'b', and so on...
  code.map { |e| h.fetch((e - c.next),e) }.join('') # decode and fetch values from hash and join  

ryanveroniwooff

def make_stars(height)
  star  = '*'
  space = ' '
  arr   = []
  
  # Sets up non-formatted stars for given height
  for i in 1..height
    arr << [i == 1 ? star : star * ((i * 2) - 2)]
  end

ryanveroniwooff

# This Program creates and outputs a formatted and colorized chirstmas tree with "Merry Christmas!" below it

# This code handles colorization of console output
class String
  # colorization
  def colorize(color_code)
    "\e[#{color_code}m#{self}\e[0m"
  end

  def red

ryanveroniwooff

# readFile sets up a new file right away by calling writeFile
# then stores the file as readfile and returns the formatFile method on the readfile
def readFile
  writeFile
  file = File.open(File.expand_path File.dirname(__FILE__)  + "/output.txt")
  readfile = file.read
  file.close
  readfile.formatFile
 end

ryanveroniwooff

# use the .to_dollars method on any string and get appropriate
# dollar amount returned with two decimal places rounded to the hundreths
# format is for us dollar
class String
  def to_dollars
    d = self.decimals_present 
    return "$" + self + "00" if d == 0
    return "$" + self + "0" if d == 1
    return "$" + self if d == 2
    return "$" + self.decimals[1] + '.' + self.round_decimals if d > 2

ryanveroniwooff

def sort(a, a_is_unsorted = true)
  # (a_is_unsorted = false; (a.size - 1).times{ |i| j = i + 1; a[i], a[j], a_is_unsorted = a[j], a[i], true if a[i] > a[j]}) while a_is_unsorted
  while a_is_unsorted do
    a_is_unsorted = false
    (a.length - 1).times{ |i| 
      a[i], a[i + 1], a_is_unsorted = a[i + 1], a[i], true if a[i] > a[i + 1]
     }
  end
  a
end

ryanveroniwooff

def self.output_to_file(item)
  fname = "program-output.txt"
  time = Time.new.strftime("%a, %b %d @ %I:%M:%S %p")
  file = File.open(fname, "a") # a = append, w = wipe
  file.puts "#{time}: #{item} \n\n"
  file.close
end

ryanveroniwooff

def count_words(s)
  return nil if s.nil? || s.split.empty?
  s.downcase.gsub(/[^a-z0-9'!\s-]/i, '').split(" ").each_with_object(Hash.new(0)){ |word,counts| counts[word] += 1 }
end