#
# A class to encapsulate methods for generating a game
#
class Game


  GAME_STRING_STORY = 'S'
  GAME_STRING_ADVENTURE = 'A'
  GAME_STRING_TIMERUN = 'T'

  #
  # Will generate a URL for the given string
  # The first 6 characters are the encryption key of the type
  # What comes after is the encrypted game type (SG, AG, TG)
  #
  def Game.gen_game_url (type)
    key = Utils.random_hex_string 6
    encrypted_game_type = type.encrypt(key)
    return key + encrypted_game_type
  end

  #
  # Will create a new sotry game, generate ID and put it in the database
  #
  def Game.create_new_story_game
    # Story game IDs always start with 'S'
    game_id = Database.create_valid_game_id(GAME_STRING_STORY)

    # Insert the ID in the DB
    Database.insert_game_id_to_db(game_id, 1, 'S')

    handle_maze_with_number(1,  game_id)
  end

  #
  # Will create a new sotry game, generate ID and put it in the database
  #
  def Game.create_new_adventure_game
    # Adventure game IDs always start with 'A'
    game_id = Database.create_valid_game_id(GAME_STRING_ADVENTURE)
    level_number = rand(1..Integer::MAX) %  2147483647

    # Insert the ID in the DB and associate it with the given level
    Database.insert_game_id_to_db(game_id, level_number, 'A')
    Database.update_level_number_for_gid(level_number, game_id)

    handle_maze_with_number(level_number,  game_id, MAIN_HTML, GAME_TYPE_ADVENTURE)
  end

  #
  # Will create a new sotry game, generate ID and put it in the database
  #
  def Game.create_new_maze_game
    # Pure maze game IDs always start with 'T'
    game_id = Database.create_valid_game_id(GAME_STRING_TIMERUN)
    level_number = rand(1..Integer::MAX) %  2147483647

    # Insert the ID in the DB and associate it with the given level
    Database.insert_game_id_to_db(game_id, level_number, 'T')
    Database.update_level_number_for_gid(level_number, game_id)

    handle_maze_with_number(level_number,  game_id, MAIN_HTML, GAME_TYPE_MAZE)
  end

  #
  # Will create a game, with the specified type
  #
  def Game.create_game(game_type)

    code, retv = create_new_story_game if game_type == 'SG'
    code, retv = create_new_adventure_game if game_type == 'AG'
    code, retv = create_new_maze_game if game_type == 'TG'

    return code, retv
  end

end