helpers.rb

helpers do

  def set_playername(playername, remember_name)
    if params[:playername].empty?
      session[:playername] = "Player"
    else
      session[:playername] = params[:playername]
    end

    if remember_name == 'on' || remember_name == '1' || remember_name == 'true'
      session[:playername_persistent] = true
    end

  end

  def build_deck
    cards = []
    amount_decks = AMOUNT_DECKS
    
    # For each amount_decks, create the deck using an array of suits and an array of values
    amount_decks.times do
      ['hearts','diamonds','spades','clubs'].each do |suit|
        ['ace','2','3','4','5','6','7','8','9','10','jack','queen','king'].each do |value|
          cards << {suit: suit, value: value}
        end
      end
    end

    cards.shuffle!
    session[:deck] = cards
  end

  def setup
    session[:player_cards] = []
    session[:dealer_cards] = []

    2.times { session[:player_cards] << session[:deck].pop }
    2.times { session[:dealer_cards] << session[:deck].pop }
    
    session[:dealer_cards].last[:hidden] = true
  end

  def has_hidden_card(cards)
    cards.select {|card| card[:hidden] }.size > 0
  end

  def cards_value(cards)
    total_points = 0

    cards.each do |card| 

      if card[:value].to_i != 0
        point = card[:value].to_i
      else
        point = case card[:value]
                  when 'ace'; 11
                  when 'jack', 'queen', 'king'; 10
                end
      end

      total_points += point
    end

    # Take into account any aces if the total value is higher then 21
    cards.select{ |card| card[:value] == 'ace' }.count.times do
      total_points -= 10 if total_points > BLACKJACK_AMOUNT
    end

    total_points
  end

  def show_all_cards(cards)
    cards.each {|card| card[:hidden] = false}
  end

  def card_filename(card)
    base_path = '/images/cards'
    if card[:hidden]
      return "#{base_path}/cover.jpg"
    else
      return "#{base_path}/#{card[:suit]}_#{card[:value]}.jpg"
    end
  end

  def card_title(card)
    if card[:hidden]
      return 'Nobody knows'
    else
      card_value = card[:value].to_i == 0 ? card[:value] : CARD_VALUE_TO_WORD[card[:value].to_i]

      return "#{card_value.capitalize} of #{card[:suit].capitalize}"
    end
  end

  def remove_game
    reset_game
    session[:player_money] = nil
  end

  def reset_game
    reset_round
    session[:state] = nil
    session[:player_money] = INITIAL_PLAYER_MONEY
    session[:player_bet] = nil
  end

  def reset_round
    session[:player_cards] = []
    session[:dealer_cards] = []
    session[:deck] = []
  end

  def play_again
    "  <a href='/make_bet' class='float-right'>Play again</a>"
  end
end