設定画面 (#34) (#397)

Reviewed-on: #397
Co-authored-by: miteruzo <miteruzo@naver.com>
Co-committed-by: miteruzo <miteruzo@naver.com>

backend/app/controllers/user_settings_controller.rb

@@ -0,0 +1,61 @@
+class UserSettingsController < ApplicationController
+  wrap_parameters false
+
+  def show
+    return head :unauthorized unless current_user
+
+    render json: current_setting.serializable_hash
+  end
+
+  def update
+    return head :unauthorized unless current_user
+
+    raw_attributes = editable_raw_attributes
+    field_errors = validate_raw_attributes(raw_attributes)
+    return render_validation_error fields: field_errors if field_errors.present?
+
+    setting = current_setting
+    setting.assign_attributes(raw_attributes)
+
+    if setting.save
+      render json: setting.serializable_hash, status: :ok
+    else
+      render_validation_error setting
+    end
+  end
+
+  private
+
+  def current_setting
+    Setting.find_or_create_by!(user: current_user) do |setting|
+      setting.assign_attributes(Setting.defaults)
+    end
+  rescue ActiveRecord::RecordNotUnique
+    Setting.find_by!(user: current_user)
+  end
+
+  def editable_raw_attributes
+    request.request_parameters.slice(*Setting::EDITABLE_ATTRIBUTES)
+  end
+
+  def validate_raw_attributes raw_attributes
+    raw_attributes.each_with_object({ }) do |(key, value), errors|
+      next if value_matches_type?(key, value)
+
+      errors[key.to_sym] = ['値の型が不正です．']
+    end
+  end
+
+  def value_matches_type? key, value
+    case Setting::TYPE_BY_ATTRIBUTE.fetch(key)
+    when :string
+      value.is_a?(String)
+    when :integer
+      value.is_a?(Integer)
+    when :boolean
+      value == true || value == false
+    else
+      false
+    end
+  end
+end

backend/app/controllers/user_theme_slots_controller.rb

@@ -0,0 +1,38 @@
+class UserThemeSlotsController < ApplicationController
+  wrap_parameters false
+
+  def index
+    return head :unauthorized unless current_user
+
+    render json: current_user
+                 .theme_slots
+                 .order(:base_theme, :slot_no)
+                 .map { |slot| slot.serializable_hash }
+  end
+
+  def update
+    return head :unauthorized unless current_user
+
+    base_theme = params[:base_theme].to_s
+    slot_no = params[:slot_no].to_i
+    tokens = params[:tokens]
+
+    unless UserThemeSlot::BASE_THEMES.include?(base_theme)
+      return render_validation_error fields: { base_theme: ['値が不正です．'] }
+    end
+    unless UserThemeSlot::SLOT_NOS.include?(slot_no)
+      return render_validation_error fields: { slot_no: ['値が不正です．'] }
+    end
+    unless tokens.is_a?(ActionController::Parameters) || tokens.is_a?(Hash)
+      return render_validation_error fields: { tokens: ['JSON object で指定してください．'] }
+    end
+
+    slot = UserThemeSlot.find_or_initialize_by(user: current_user,
+                                               base_theme:,
+                                               slot_no:)
+    slot.tokens = tokens.is_a?(ActionController::Parameters) ? tokens.to_unsafe_h : tokens
+    slot.save!
+
+    render json: slot.serializable_hash, status: :ok
+  end
+end

backend/app/models/setting.rb

@@ -1,7 +1,52 @@
 class Setting < ApplicationRecord
+  THEMES = ['system', 'light', 'dark'].freeze
+
+  # These remain in the typed settings schema to preserve existing backend
+  # work. The common `/users/settings` page currently surfaces only `theme`.
+  AUTO_FETCH_MODES = ['auto', 'manual', 'off'].freeze
+  WIKI_EDITOR_MODES = ['split', 'write', 'preview'].freeze
+
+  STRING_ATTRIBUTES = [
+    'theme',
+    'auto_fetch_title',
+    'auto_fetch_thumbnail',
+    'wiki_editor_mode',
+  ].freeze
+  INTEGER_ATTRIBUTES = [].freeze
+  BOOLEAN_ATTRIBUTES = [].freeze
+  EDITABLE_ATTRIBUTES =
+      (STRING_ATTRIBUTES + INTEGER_ATTRIBUTES + BOOLEAN_ATTRIBUTES).freeze
+  TYPE_BY_ATTRIBUTE = {
+    'theme' => :string,
+    'auto_fetch_title' => :string,
+    'auto_fetch_thumbnail' => :string,
+    'wiki_editor_mode' => :string,
+  }.freeze
+
   belongs_to :user
 
   validates :user_id, presence: true
-  validates :key, presence: true, length: { maximum: 255 }
-  validates :value, presence: true
+  validates :user_id, uniqueness: true
+
+  validates :theme, inclusion: { in: THEMES }
+  validates :auto_fetch_title, inclusion: { in: AUTO_FETCH_MODES }
+  validates :auto_fetch_thumbnail, inclusion: { in: AUTO_FETCH_MODES }
+  validates :wiki_editor_mode, inclusion: { in: WIKI_EDITOR_MODES }
+
+  def self.defaults
+    {
+      theme: 'system',
+      auto_fetch_title: 'manual',
+      auto_fetch_thumbnail: 'manual',
+      wiki_editor_mode: 'split',
+    }
+  end
+
+  def self.serializable_attributes
+    EDITABLE_ATTRIBUTES.map(&:to_sym)
+  end
+
+  def serializable_hash(options = nil)
+    super({ only: self.class.serializable_attributes }.merge(options || { }))
+  end
 end

backend/app/models/user.rb

@@ -7,7 +7,8 @@ class User < ApplicationRecord
 
   has_many :created_posts,
            class_name: 'Post', foreign_key: :uploaded_user_id, dependent: :nullify
-  has_many :settings
+  has_one :setting, dependent: :destroy
+  has_many :theme_slots, class_name: 'UserThemeSlot', dependent: :destroy
   has_many :user_ips, dependent: :destroy
   has_many :ip_addresses, through: :user_ips
   has_many :user_post_views, dependent: :destroy

backend/app/models/user_theme_slot.rb

@@ -0,0 +1,27 @@
+class UserThemeSlot < ApplicationRecord
+  BASE_THEMES = ['light', 'dark'].freeze
+  SLOT_NOS = [1, 2, 3].freeze
+
+  belongs_to :user
+
+  validates :user_id, presence: true
+  validates :base_theme, presence: true, inclusion: { in: BASE_THEMES }
+  validates :slot_no, presence: true, inclusion: { in: SLOT_NOS }
+  validates :tokens, presence: true
+  validates :user_id, uniqueness: { scope: [:base_theme, :slot_no] }
+
+  validate :tokens_must_be_object
+
+  def serializable_hash(options = nil)
+    hash = { only: [:base_theme, :slot_no, :tokens, :created_at, :updated_at] }
+    super(hash.merge(options || {}))
+  end
+
+  private
+
+  def tokens_must_be_object
+    return if tokens.is_a?(Hash)
+
+    errors.add(:tokens, 'は JSON object で指定してください．')
+  end
+end