class Game

# File lib/game.rb, line 10
def initialize(player_name1, player_name2)
  @deck = Deck.new
  @player1 = Player.new(player_name1)
  @player2 = Player.new(player_name2)
  @dealer = nil
  @non_dealer = nil
  @upcard = nil
  @trump_suit = nil
  @trick_winner = nil
  @ui = TerminalUI.new
end

# File lib/game.rb, line 41
def change_dealer
  old_dealer = @dealer
  @dealer = @non_dealer
  @non_dealer = old_dealer
end

# File lib/game.rb, line 48
def deal
  @player1.clear_hand
  @player2.clear_hand

  @deck = Deck.new
  @deck.shuffle

  5.times do
    @non_dealer.receive(@deck.draw)
    @dealer.receive(@deck.draw)
  end
  @upcard = @deck.draw
  @trump_suit = @upcard.suit
end

# File lib/game.rb, line 23
def determine_dealer
  @deck.shuffle

  while @dealer.nil?
    card1 = @deck.cards[rand(2..30) - 1]
    card2 = @deck.cards[rand(2..30) - 1]

    if card1.strength > card2.strength
      @dealer = @player1
      @non_dealer = @player2
    elsif card2.strength > card1.strength
      @dealer = @player2
      @non_dealer = @player1
    end
  end
end

# File lib/game.rb, line 123
def game_winner
  if @player1.score > @player2.score
    @player1
  elsif @player1.score < @player2.score
    @player2
  else
    nil
  end
end

# File lib/game.rb, line 105
def other_player(player)
  player == @player1 ? @player2 : @player1
end

# File lib/game.rb, line 110
def play
  lead_player = @non_dealer
  follow_player = @dealer

  5.times do
    play_trick(lead_player, follow_player)

    lead_player = @trick_winner
    follow_player = other_player(lead_player)
  end
end

# File lib/game.rb, line 80
def play_trick(lead_player, follow_player)
  lead_card = @ui.choose_card(lead_player)
  follow_card = @ui.choose_card(follow_player)

  until valid_follow_card?(follow_player, lead_card, follow_card)
    @ui.display_wrong_card
    follow_card = @ui.choose_card(follow_player)
  end

  lead_player.play(lead_card)
  follow_player.play(follow_card)

  if lead_card.suit != follow_card.suit && follow_card.suit != @trump_suit
    @trick_winner = lead_player
  elsif lead_card.suit == follow_card.suit && lead_card.strength > follow_card.strength
    @trick_winner = lead_player
  else
    @trick_winner = follow_player
  end

  @trick_winner.add_point
  @ui.display_trick_winner(@trick_winner)
end

# File lib/game.rb, line 64
def stock
  @deck.cards
end

# File lib/game.rb, line 69
def valid_follow_card?(follow_player, lead_card, follow_card)
  if follow_card.suit == lead_card.suit
    true
  elsif follow_player.hand.any? { |card| card.suit == lead_card.suit }
    false
  else
    true
  end
end