Models of http://super-sazae-time.herokuapp.com/

janken.rb

# == Schema Information
#
# Table name: jankens
#
#  id         :integer          not null, primary key
#  title      :string           not null
#  enemy_name :string           not null
#  created_at :datetime         not null
#  updated_at :datetime         not null
#

class Janken < ApplicationRecord
  has_many :janken_histories
end

janken_history.rb

# == Schema Information
#
# Table name: janken_histories
#
#  id         :integer          not null, primary key
#  janken_id  :integer          not null
#  title      :string
#  sazae      :integer
#  enemy      :integer
#  sazae_date :string
#  enemy_date :string
#  created_at :datetime         not null
#  updated_at :datetime         not null
#
# Indexes
#
#  index_janken_histories_on_janken_id  (janken_id)
#

class JankenHistory < ApplicationRecord
  belongs_to :janken

  scope :sazae_win, -> { where("(sazae = 1 AND enemy = 2) OR (sazae = 2 AND enemy = 3) OR (sazae = 3 AND enemy = 1)") }
  scope :enemy_win, -> { where("(sazae = 1 AND enemy = 3) OR (sazae = 2 AND enemy = 1) OR (sazae = 3 AND enemy = 2)") }
  scope :aiko, -> { where.not(sazae: nil).where.not(enemy: nil).where("sazae = enemy") }

  HANDS = { 0 => "なし", 1 => "グー", 2 => "チョキ", 3 => "パー", 4 => "グッチョッパー" }

  def sazae_hand
    HANDS[sazae] if sazae
  end

  def enemy_hand
    HANDS[enemy] if enemy
  end

  def winner
    if (sazae == 1 && enemy == 2) || (sazae == 2 && enemy == 3) || (sazae == 3 && enemy == 1)
      return "サザエ"
    end

    if (sazae == 1 && enemy == 3) || (sazae == 2 && enemy == 1) || (sazae == 3 && enemy == 2)
      return janken.enemy_name
    end

    if sazae && enemy && sazae == enemy
      return "あいこ"
    end

    nil
  end

  def self.hand_items
    HANDS.map { |value, text| ["#{value}: #{text}", value] }
  end
end