main.rb

require 'rubygems'
require 'sinatra'
require 'pry'
require 'json'
require './helpers'

set :sessions, true
set :session_secret, 'Codefish.org\'s secret'

CARD_VALUE_TO_WORD = { 2 => "two", 3 => "three", 4 => "four", 5 => "five", 6 => "six", 7 => "seven", 8 => "eight", 9 => "nine", 10 => "ten" }
BLACKJACK_AMOUNT = 21
DEALER_HIT_AMOUNT = 17
INITIAL_PLAYER_MONEY = 100
AMOUNT_DECKS = 1

get '/' do
  remove_game
  erb :index
end

get '/player' do
  erb :'player/info'
end

get '/start' do
  reset_game

  if session[:playername_persistent]
    redirect '/make_bet'
  end

  erb :'preparation/playername'
end

post '/playername' do
  if params[:playername].empty? 
    @alert_error = "Please enter a valid name. I'm sure you have one :-)"
    halt erb :'preparation/playername'
  end

  set_playername(params[:playername], params[:remember_name])

  redirect '/make_bet'
end

get '/make_bet' do
  reset_round
  if session[:player_money] && session[:player_money] > 0
    erb :'preparation/make_bet'
  else
    erb :'game/game_over'
  end
end

post '/make_bet' do
  if params['bet_amount'].empty? || params['bet_amount'].to_i <= 0
    @alert_error = "Illegal amount entered. Please enter a valid number."
    erb :'preparation/make_bet'

  elsif params['bet_amount'].to_i > session[:player_money]
    @alert_error = "I'm sorry, you don't have this much money to bet. Enter a lower amount."
    erb :'preparation/make_bet'

  else 
    session[:player_bet] = params['bet_amount'].to_i
    session[:player_money] -= session[:player_bet]
    
    redirect '/game'
  end
end


get '/game' do
  if session[:player_cards].empty?
    build_deck
    setup
    session[:state] = :player
  end

  erb :'game/display'
end


post '/ajax/game' do

  # Check for blackjacks
  if session[:dealer_cards].size == 2 && cards_value(session[:dealer_cards]) == BLACKJACK_AMOUNT
    show_all_cards(session[:dealer_cards])
    session[:state] = :player_lost
    @alert_error = "Dealer has backjack, you've lost!!" + play_again

  elsif session[:player_cards].size == 2 && cards_value(session[:player_cards]) == BLACKJACK_AMOUNT
    session[:state] = :player_win
    @alert_success = "You've blackjack, you win!!" + play_again
  end

  if params['action'].downcase == 'hit'
    session[:player_cards] << session[:deck].pop

    if cards_value(session[:player_cards]) > BLACKJACK_AMOUNT
      session[:state] = :player_lost
      @alert_error = "Game over! You've busted!" + play_again
    end

  elsif params['action'].downcase == 'stay'
    session[:state] = :dealer
    # session[:dealer_cards].each {|card| card[:hidden] = false}
    show_all_cards(session[:dealer_cards])

  elsif params['action'].downcase == 'dealer'
    if cards_value(session[:dealer_cards]) < DEALER_HIT_AMOUNT
      session[:dealer_cards] << session[:deck].pop

    elsif cards_value(session[:player_cards]) > cards_value(session[:dealer_cards])
      session[:state] = :player_win
      @alert_success = "You win!" + play_again

    elsif cards_value(session[:player_cards]) < cards_value(session[:dealer_cards])
      session[:state] = :player_lost
      @alert_error = "Too bad, dealer wins!" + play_again

    else cards_value(session[:player_cards]) == cards_value(session[:dealer_cards])
      session[:state] = :tie
      @alert_info = "Game ends in a tie! " + play_again
    end

    if session[:state] == :dealer && cards_value(session[:dealer_cards]) > BLACKJACK_AMOUNT
      session[:state] = :player_win
      @alert_success = "Dealer busted! You win!" + play_again
    end
  end

  if session[:player_bet] && [:player_win, :player_lost, :tie].include?(session[:state])
    if session[:state] == :player_win
      session[:player_money] += (2*session[:player_bet])
    elsif session[:state] == :tie
      session[:player_money] += session[:player_bet]
    end

    session[:player_bet] = nil
  end

  content_type :json
  json_data = {:state => session[:state]}
  json_data['error'] = @alert_error if @alert_error
  json_data['info'] = @alert_info if @alert_info
  json_data['success'] = @alert_success if @alert_success
  json_data.to_json
end

get '/ajax/dealer_cards' do
  erb :'ajax/dealer_cards', :layout => false
end

get '/ajax/player_cards' do
  erb :'ajax/player_cards', :layout => false
end