Refactor creating Github::Nippou::Settings class

lib/github/nippou.rb

@@ -3,5 +3,6 @@
 
 require 'github/nippou/commands'
 require 'github/nippou/format'
+require 'github/nippou/settings'
 require 'github/nippou/user_events'
 require 'github/nippou/version'

lib/github/nippou/commands.rb

@@ -53,7 +53,7 @@ def init
         result = client.create_gist(
           description: 'github-nippou settings',
           public: true,
-          files: { 'settings.yml' => { content: settings.to_yaml }}
+          files: { 'settings.yml' => { content: settings.yaml }}
         ).to_h
         `git config --global github-nippou.settings-gist-id #{result[:id]}`
 
@@ -122,34 +122,7 @@ def access_token
       end
 
       def settings
-        return @settings if @settings.present?
-
-        yaml_data =
-          case
-          when ENV['GITHUB_NIPPOU_SETTINGS']
-            ENV['GITHUB_NIPPOU_SETTINGS'].chomp
-          when !`git config github-nippou.settings`.chomp.empty?
-            `git config github-nippou.settings`.chomp
-          when !`git config github-nippou.settings-gist-id`.chomp.empty?
-            gist_id = `git config github-nippou.settings-gist-id`.chomp
-            gist = client.gist(gist_id)
-            gist[:files][:'settings.yml'][:content]
-          end
-
-        @settings =
-          if yaml_data
-            YAML.load(yaml_data).deep_symbolize_keys
-          else
-            YAML.load_file(File.expand_path('../../../config/settings.yml', __dir__)).deep_symbolize_keys
-          end
-      rescue Psych::SyntaxError => e
-        puts <<~MESSAGE
-          ** YAML syntax error.
-
-          #{e.message}
-          #{yaml_data}
-        MESSAGE
-        exit
+        @settings ||= Settings.new(client: client)
       end
 
       def thread_num

lib/github/nippou/format.rb

@@ -4,8 +4,10 @@ class Format
       using SawyerResourceGithub
       using StringMarkdown
 
-      attr_reader :settings
-
+      # @param client [Octokit::Client]
+      # @param thread_num [Integer]
+      # @param settings [Settings]
+      # @param debug [Boolean]
       def initialize(client, thread_num, settings, debug)
         @client = client
         @thread_num = thread_num
@@ -55,6 +57,8 @@ def all(lines)
 
       private
 
+      attr_reader :settings
+
       def issue(user_event)
         case
         when user_event.payload.pull_request
@@ -71,23 +75,24 @@ def sort(lines)
         lines.sort { |a, b| a[:url] <=> b[:url] }
       end
 
-      def format_status(status)
-        settings[:dictionary][:status][status]
-      end
-
       def format_subject(subject)
-        sprintf(settings[:format][:subject], subject: subject)
+        sprintf(settings.format.subject, subject: subject)
       end
 
       def format_line(line)
         sprintf(
-          settings[:format][:line],
+          settings.format.line,
           title: line[:title].markdown_escape,
           url: line[:url],
           user: line[:user],
           status: format_status(line[:status])
         ).strip
       end
+
+      def format_status(status)
+        return nil if status.nil?
+        settings.dictionary.status.send(status)
+      end
     end
   end
 end

lib/github/nippou/settings.rb

@@ -0,0 +1,79 @@
+require 'json'
+require 'ostruct'
+
+module Github
+  module Nippou
+    class Settings
+      def initialize(client:)
+        @client = client
+      end
+
+      # Getting format settings
+      #
+      # @return [OpenStruct]
+      def format
+        open_struct(data[:format])
+      end
+
+      # Getting dictionary settings
+      #
+      # @return [OpenStruct]
+      def dictionary
+        open_struct(data[:dictionary])
+      end
+
+      # Getting settings as YAML format
+      #
+      # return [String]
+      def yaml
+        data.to_yaml
+      end
+
+      private
+
+      attr_reader :client
+
+      # Getting settings data as Hash
+      #
+      # return [Hash]
+      def data
+        @data ||=
+          begin
+            yaml_data =
+              case
+              when ENV['GITHUB_NIPPOU_SETTINGS']
+                ENV['GITHUB_NIPPOU_SETTINGS'].chomp
+              when !`git config github-nippou.settings`.chomp.empty?
+                `git config github-nippou.settings`.chomp
+              when !`git config github-nippou.settings-gist-id`.chomp.empty?
+                gist_id = `git config github-nippou.settings-gist-id`.chomp
+                gist = client.gist(gist_id)
+                gist[:files][:'settings.yml'][:content]
+              end
+
+            if yaml_data
+              YAML.load(yaml_data).deep_symbolize_keys
+            else
+              YAML.load_file(File.expand_path('../../../config/settings.yml', __dir__)).deep_symbolize_keys
+            end
+          rescue Psych::SyntaxError
+            puts <<~MESSAGE
+              ** YAML syntax error.
+
+              #{$!.message}
+              #{yaml_data}
+            MESSAGE
+            raise $!
+          end
+      end
+
+      # Cast to OpenStruct
+      #
+      # @param hash [Hash]
+      # @return [OpenStruct]
+      def open_struct(hash)
+        JSON.parse(hash.to_json, object_class: OpenStruct)
+      end
+    end
+  end
+end

spec/github/nippou/settings_spec.rb

@@ -0,0 +1,99 @@
+describe Github::Nippou::Settings do
+  let(:client) { Octokit::Client.new(login: 'taro', access_token: '1234abcd') }
+  let(:settings) { described_class.new(client: client) }
+
+  describe '#format' do
+    context 'given valid settings' do
+      let(:settings_format) do
+        {
+          format: {
+            subject: '### %{subject}',
+            line: '* [%{title}](%{url}) by %{user} %{status}',
+          },
+        }
+      end
+
+      before { ENV['GITHUB_NIPPOU_SETTINGS'] = settings_format.to_yaml }
+
+      it 'is valid `subject`' do
+        expect(settings.format.subject).to eq '### %{subject}'
+      end
+
+      it 'is valid `line`' do
+        expect(settings.format.line).to eq '* [%{title}](%{url}) by %{user} %{status}'
+      end
+    end
+
+    context 'given invalid settings' do
+      let(:settings_format_yaml) do
+        <<~INVALID_YAML
+        format:
+          **!!invalid!!**
+          line: '* [%{title}](%{url}) by %{user} %{status}'
+        INVALID_YAML
+      end
+
+      before { ENV['GITHUB_NIPPOU_SETTINGS'] = settings_format_yaml }
+
+      it 'outputs YAML syntax error message' do
+        expect { settings.format }.to raise_error Psych::SyntaxError
+      end
+    end
+  end
+
+  describe '#dictionary' do
+    context 'given valid settings' do
+      let(:settings_dictionary) do
+        {
+          dictionary: {
+            status: {
+              merged: '**merged!**',
+              closed: '**closed!**',
+            },
+          },
+        }
+      end
+
+      before { ENV['GITHUB_NIPPOU_SETTINGS'] = settings_dictionary.to_yaml }
+
+      it 'is valid `status.merged`' do
+        expect(settings.dictionary.status.merged).to eq '**merged!**'
+      end
+
+      it 'is valid `status.closed`' do
+        expect(settings.dictionary.status.closed).to eq '**closed!**'
+      end
+    end
+  end
+
+  describe '#yaml' do
+    context 'given valid settings' do
+      let(:settings_yaml) do
+        <<~VALID_YAML
+        format:
+          subject: "### %{subject}"
+          line: "* [%{title}](%{url}) by %{user} %{status}"
+        dictionary:
+          status:
+            merged: "**merged!**"
+            closed: "**closed!**"
+        VALID_YAML
+      end
+
+      before { ENV['GITHUB_NIPPOU_SETTINGS'] = settings_yaml }
+
+      it 'is valid yaml' do
+        expect(settings.yaml).to eq <<~VALID_YAML
+          ---
+          :format:
+            :subject: "### %{subject}"
+            :line: "* [%{title}](%{url}) by %{user} %{status}"
+          :dictionary:
+            :status:
+              :merged: "**merged!**"
+              :closed: "**closed!**"
+        VALID_YAML
+      end
+    end
+  end
+end