class PseudoRandomValue

# File lib/pseudo_random_value.rb, line 2
def initialize(arr_symbols)
  if arr_symbols.first.is_a? Array
    @arr_symbols = arr_symbols
  else arr_symbols.first.is_a? String
    @arr_symbols = arr_symbols.map {|s| s.split("") }
  end

  raise RuntimeError.new("Empty arr_symbols") if arr_symbols.empty?
end

# File lib/pseudo_random_value.rb, line 12
def new_value(token_counter)
  token_counter = 1 if token_counter == 0
  output_value = output_value(@arr_symbols, token_counter).reverse
  maximum_value = maximum_value(@arr_symbols)

  message = "Sorry, number of characters is over"
  raise RuntimeError.new(message) if token_counter >= maximum_value

  output_value.join
end

# File lib/pseudo_random_value.rb, line 31
def maximum_value(arr_symbols)
  arr_symbols[0].length ** arr_symbols.size + 1
end

# File lib/pseudo_random_value.rb, line 25
def output_value(arr_symbols, token_counter)
  arr_symbols.map.with_index do |symbols, i|
    symbols[token_counter / (symbols.length ** i) % symbols.length]
  end
end