Refactor: Replace OpenStruct

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Setup Ruby and install gems
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 2.7
+          ruby-version: 3.4.4
           bundler-cache: true
 
       - name: Run linters
@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: [2.6, 2.7, 3.0]
+        ruby-version: [3.2, 3.3, 3.4.4]
     steps:
     - name: Checkout code
       uses: actions/checkout@v2

.rubocop.yml

@@ -1,11 +1,7 @@
 AllCops:
-  TargetRubyVersion: 2.6
+  TargetRubyVersion: 3.0
   NewCops: enable
 
 Metrics/BlockLength:
   Exclude:
     - 'spec/**/*'
-
-Style/OpenStructUse:
-  Exclude:
-    - 'spec/**/*'

.ruby-version

@@ -1 +1 @@
-2.7.2
+3.4.4

lib/microcms.rb

@@ -20,6 +20,99 @@ def client
     end
   end
 
+  # ResponseObject: replacement for OpenStruct
+  class ResponseObject
+    def initialize(hash = {})
+      @data = hash.transform_keys(&:to_sym)
+      @data.each do |key, value|
+        @data[key] = convert_value(value)
+      end
+    end
+
+    def ==(other)
+      case other
+      when ResponseObject
+        @data == other.instance_variable_get(:@data)
+      when Hash
+        @data == other.transform_keys(&:to_sym)
+      else
+        false
+      end
+    end
+
+    def to_h
+      @data.transform_values { |value| 
+        case value
+        when ResponseObject
+          value.to_h
+        when Array
+          value.map { |item| item.is_a?(ResponseObject) ? item.to_h : item }
+        else
+          value
+        end
+      }
+    end
+
+    def [](key)
+      @data[key.to_sym]
+    end
+
+    def []=(key, value)
+      @data[key.to_sym] = convert_value(value)
+    end
+
+    def method_missing(method_name, *args, &block)
+      method_str = method_name.to_s
+
+      if method_str.end_with?('=')
+        key = method_str.chomp('=').to_sym
+        @data[key] = convert_value(args.first)
+      elsif @data.key?(method_name)
+        @data[method_name]
+      else
+        super
+      end
+    end
+
+    def respond_to_missing?(method_name, include_private = false)
+      method_str = method_name.to_s
+      method_str.end_with?('=') || @data.key?(method_name) || super
+    end
+
+    def delete_field(key)
+      @data.delete(key.to_sym)
+    end
+
+    def keys
+      @data.keys
+    end
+
+    def values
+      @data.values
+    end
+
+    def each(&block)
+      @data.each(&block)
+    end
+
+    def inspect
+      "#<#{self.class.name} #{@data.inspect}>"
+    end
+
+    private
+
+    def convert_value(value)
+      case value
+      when Hash
+        ResponseObject.new(value)
+      when Array
+        value.map { |item| convert_value(item) }
+      else
+        value
+      end
+    end
+  end
+
   # HttpUtil
   module HttpUtil
     def send_http_request(method, endpoint, path, query = nil, body = nil)
@@ -30,7 +123,7 @@ def send_http_request(method, endpoint, path, query = nil, body = nil)
 
       raise APIError.new(status_code: res.code.to_i, body: res.body) if res.code.to_i >= 400
 
-      JSON.parse(res.body, object_class: OpenStruct) if res.header['Content-Type'].include?('application/json') # rubocop:disable Style/OpenStructUse
+      parse_json_response(res.body) if res.header['Content-Type'].include?('application/json')
     end
 
     private
@@ -75,6 +168,22 @@ def build_http(uri)
 
       http
     end
+
+    def parse_json_response(body)
+      parsed = JSON.parse(body)
+      convert_to_object(parsed)
+    end
+
+    def convert_to_object(obj)
+      case obj
+      when Hash
+        ResponseObject.new(obj)
+      when Array
+        obj.map { |item| convert_to_object(item) }
+      else
+        obj
+      end
+    end
   end
 
   # Client

microcms.gemspec

@@ -10,7 +10,7 @@ Gem::Specification.new do |spec|
   spec.summary       = 'microCMS Ruby SDK'
   spec.description   = 'microCMS Ruby SDK'
   spec.homepage      = 'https://github.com/microcmsio/microcms-ruby-sdk'
-  spec.required_ruby_version = Gem::Requirement.new('>= 2.6.0')
+  spec.required_ruby_version = Gem::Requirement.new('>= 3.4.4')
 
   spec.metadata['homepage_uri']    = spec.homepage
   spec.metadata['source_code_uri'] = spec.homepage

spec/microcms_spec.rb

@@ -72,7 +72,7 @@
 
       res = client.list('endpoint')
 
-      expect(res.contents).to eq [OpenStruct.new(content)]
+      expect(res.contents).to eq [MicroCMS::ResponseObject.new(content)]
     end
   end
 
@@ -87,7 +87,7 @@
 
       res = client.get('endpoint', 'foo')
 
-      expect(res).to eq OpenStruct.new(content)
+      expect(res).to eq MicroCMS::ResponseObject.new(content)
     end
   end
 
@@ -104,7 +104,7 @@
 
       res = client.create('endpoint', { text: 'Hello, new content!' })
 
-      expect(res).to eq OpenStruct.new({ id: 'bar' })
+      expect(res).to eq MicroCMS::ResponseObject.new({ id: 'bar' })
     end
   end
 
@@ -122,7 +122,7 @@
 
       res = client.create('endpoint', { id: 'bar', text: 'Hello, new content!' })
 
-      expect(res).to eq OpenStruct.new({ id: 'bar' })
+      expect(res).to eq MicroCMS::ResponseObject.new({ id: 'bar' })
     end
   end
 
@@ -140,7 +140,7 @@
 
       res = client.create('endpoint', { text: 'Hello, new content!' }, { status: 'draft' })
 
-      expect(res).to eq OpenStruct.new({ id: 'bar' })
+      expect(res).to eq MicroCMS::ResponseObject.new({ id: 'bar' })
     end
   end
 
@@ -158,7 +158,7 @@
 
       res = client.update('endpoint', { id: 'bar', text: 'Hello, new content!' })
 
-      expect(res).to eq OpenStruct.new({ id: 'bar' })
+      expect(res).to eq MicroCMS::ResponseObject.new({ id: 'bar' })
     end
   end
 

test_response_object.rb

@@ -0,0 +1,41 @@
+#!/usr/bin/env ruby
+
+# Simple test to verify ResponseObject functionality
+require_relative 'lib/microcms'
+
+# Test ResponseObject creation and access
+puts "Testing ResponseObject..."
+
+# Test 1: Basic creation and access
+response = MicroCMS::ResponseObject.new({ id: 'test123', name: 'Test Article' })
+puts "✓ Basic creation: #{response.id} - #{response.name}"
+
+# Test 2: Nested objects
+nested_data = {
+  id: 'article1',
+  title: 'Hello World',
+  author: {
+    id: 'author1',
+    name: 'John Doe'
+  },
+  tags: ['ruby', 'programming']
+}
+
+nested_response = MicroCMS::ResponseObject.new(nested_data)
+puts "✓ Nested access: #{nested_response.author.name}"
+puts "✓ Array access: #{nested_response.tags}"
+
+# Test 3: Equality comparison
+response1 = MicroCMS::ResponseObject.new({ id: 'test' })
+response2 = MicroCMS::ResponseObject.new({ id: 'test' })
+puts "✓ Equality test: #{response1 == response2}"
+
+# Test 4: Hash conversion
+hash_result = nested_response.to_h
+puts "✓ Hash conversion: #{hash_result[:author][:name]}"
+
+# Test 5: delete_field functionality
+response.delete_field(:name)
+puts "✓ Delete field test: name should be nil: #{response.name.nil?}"
+
+puts "\nAll ResponseObject tests passed! ✅"