require "rps_game_davidxin/version"

module RpsGameDavidxin
  class RockPaperScissors

    def initialize
      puts "Welcome to Rock Paper Scissors game"

      @player_1 = Player.new("Player 1")

      if one_player?
        @player_2 = AIGameplay.new
      else
        @player_2 = Player.new("Player 2")
      end
      keep_playing = true
        while keep_playing
          take_turn
          keep_playing = play_again?
        end

      puts "Play again later! Bye."
    end


    def take_turn
      move_1 = @player_1.turn
      move_2 = @player_2.turn
      puts "Player 1 chose #{move_1} and player 2 chose #{move_2}"
      compare_move(move_1, move_2)
    end


    def one_player?
      print "Would you like to play (1) against the AI, or (2) multiplayer? "
      is_valid = false
      until is_valid
        input = gets.chomp
        is_valid = is_1_or_2?(input)
        print "Please enter 1 for solo and 2 for multiplayer: " unless is_valid
      end
      input == "1"
    end


    def is_1_or_2?(input)
      ["1","2"].include?(input)
    end


    def play_again?
      is_valid = false
      until is_valid
        print "Do you want to play again? (Y/N): "
        input = gets.chomp.downcase
        is_valid = is_true_or_false?(input)
        puts "Try 'y' or 'n'" unless is_valid
      end
      return input == "y"
    end


    def is_true_or_false?(input)
      ["y", "n"].include?(input)
    end


    def compare_move(move1, move2)
      if move1 == move2
        puts "You tied against player 2!"
      elsif player1_win?(move1, move2)
        puts "Player 1 wins!"
      else
        puts "Player 2 wins!"
      end
    end


    def player1_win?(move1, move2)
      (move1 == "r" && move2 == "s") ||
      (move1 == "p" && move2 == "r") ||
      (move1 == "s" && move2 == "p")
    end


  end



  class Player

    def initialize(name)
      @name = name
    end

    def turn
      is_valid = false
      until is_valid
        print "#{@name} - Enter your move ([R]ock, [P]aper, or [S]cissors): "
        input = gets.chomp.downcase
        is_valid = is_input_valid?(input)
        puts "Please enter 'r' 'p' or 's' to play" unless is_valid
      end
      return input
    end

    def is_input_valid?(input)
      ["r", "p", "s"].include?(input)
    end

  end



  class AIGameplay
    def turn
      ["r", "p", "s"].sample
    end

  end

end