Replace Virtus with dry-struct for attributes and type coercion

- Convert all model classes to Dry::Struct

- Add Types module with StringOrInteger and BooleanFlag

instapaper.gemspec

@@ -4,10 +4,11 @@ require 'instapaper/version'
 
 Gem::Specification.new do |spec|
   spec.add_dependency 'addressable', '~> 2.3'
+  spec.add_dependency 'dry-struct', '~> 1.0'
+  spec.add_dependency 'dry-types', '~> 1.0'
   spec.add_dependency 'http', '>= 2', '< 6'
   spec.add_dependency 'multi_json', '~> 1'
   spec.add_dependency 'simple_oauth', '~> 0.3'
-  spec.add_dependency 'virtus', '~> 1'
   spec.author        = 'Steve Agalloco'
   spec.description   = "Ruby Client for Instapaper's Full API"
   spec.email         = 'steve.agalloco@gmail.com'

lib/instapaper/bookmark.rb

@@ -1,21 +1,21 @@
-require 'virtus'
+require 'dry-struct'
+require 'instapaper/types'
 
 module Instapaper
-  class Bookmark
-    include Virtus.value_object
+  class Bookmark < Dry::Struct
+    include Types
+    transform_keys(&:to_sym)
 
-    values do
-      attribute :instapaper_hash, String
-      attribute :description, String
-      attribute :bookmark_id, Integer
-      attribute :private_source, String
-      attribute :title, String
-      attribute :url, String
-      attribute :progress_timestamp, DateTime
-      attribute :time, DateTime
-      attribute :progress, String
-      attribute :starred, String
-      attribute :type, String
-    end
+    attribute :type, Types::String
+    attribute :bookmark_id, Types::Integer
+    attribute :url, Types::String
+    attribute :title, Types::String
+    attribute? :description, Types::String
+    attribute? :instapaper_hash, Types::String
+    attribute? :private_source, Types::String
+    attribute? :progress_timestamp, Types::Integer.optional
+    attribute? :time, Types::Integer.optional
+    attribute? :progress, Types::StringOrInteger
+    attribute? :starred, Types::StringOrInteger
   end
 end

lib/instapaper/bookmark_list.rb

@@ -1,17 +1,18 @@
+require 'dry-struct'
+require 'instapaper/types'
 require 'instapaper/bookmark'
 require 'instapaper/highlight'
 require 'instapaper/user'
 
 module Instapaper
-  class BookmarkList
-    include Virtus.value_object
+  class BookmarkList < Dry::Struct
+    include Types
+    transform_keys(&:to_sym)
 
-    values do
-      attribute :user, Instapaper::User
-      attribute :bookmarks, [Instapaper::Bookmark]
-      attribute :highlights, [Instapaper::Highlight]
-      attribute :delete_ids, [Integer]
-    end
+    attribute :user, Instapaper::User
+    attribute :bookmarks, Types::Array.of(Instapaper::Bookmark)
+    attribute :highlights, Types::Array.of(Instapaper::Highlight)
+    attribute? :delete_ids, Types::Array.of(Types::Integer).optional.default([].freeze)
 
     def each(&block)
       bookmarks.each(&block)

lib/instapaper/credentials.rb

@@ -1,12 +1,12 @@
-require 'virtus'
+require 'dry-struct'
+require 'instapaper/types'
 
 module Instapaper
-  class Credentials
-    include Virtus.value_object
+  class Credentials < Dry::Struct
+    include Types
+    transform_keys(&:to_sym)
 
-    values do
-      attribute :oauth_token, String
-      attribute :oauth_token_secret, String
-    end
+    attribute :oauth_token, Types::String
+    attribute :oauth_token_secret, Types::String
   end
 end

lib/instapaper/folder.rb

@@ -1,17 +1,17 @@
-require 'virtus'
+require 'dry-struct'
+require 'instapaper/types'
 
 module Instapaper
-  class Folder
-    include Virtus.value_object
+  class Folder < Dry::Struct
+    include Types
+    transform_keys(&:to_sym)
 
-    values do
-      attribute :title, String
-      attribute :display_title, String
-      attribute :sync_to_mobile, Axiom::Types::Boolean
-      attribute :folder_id, Integer
-      attribute :position, String
-      attribute :type, String
-      attribute :slug, String
-    end
+    attribute :title, Types::String
+    attribute? :display_title, Types::String
+    attribute :sync_to_mobile, Types::BooleanFlag
+    attribute :folder_id, Types::Integer
+    attribute :position, Types::Coercible::Float
+    attribute :type, Types::String
+    attribute? :slug, Types::String
   end
 end

lib/instapaper/highlight.rb

@@ -1,16 +1,16 @@
-require 'virtus'
+require 'dry-struct'
+require 'instapaper/types'
 
 module Instapaper
-  class Highlight
-    include Virtus.value_object
+  class Highlight < Dry::Struct
+    include Types
+    transform_keys(&:to_sym)
 
-    values do
-      attribute :type, String
-      attribute :highlight_id, String
-      attribute :bookmark_id, String
-      attribute :text, String
-      attribute :position, String
-      attribute :time, String
-    end
+    attribute :type, Types::String
+    attribute :highlight_id, Types::Integer
+    attribute :bookmark_id, Types::Integer
+    attribute :text, Types::String
+    attribute :position, Types::Integer
+    attribute :time, Types::Integer.optional
   end
 end

lib/instapaper/types.rb

@@ -0,0 +1,22 @@
+require 'dry-types'
+
+module Instapaper
+  module Types
+    include Dry.Types()
+
+    # Coerces any value to string (replaces custom StringOrInteger union type)
+    StringOrInteger = Types::Coercible::String
+
+    # Handles boolean flags from API that come as "0"/"1" strings or 0/1 integers.
+    BooleanFlag = Types::Constructor(Types::Bool) do |value|
+      case value
+      when '1', 1, 'true', true
+        true
+      when '0', 0, 'false', false, nil
+        false
+      else
+        !!value
+      end
+    end
+  end
+end

lib/instapaper/user.rb

@@ -1,14 +1,14 @@
-require 'virtus'
+require 'dry-struct'
+require 'instapaper/types'
 
 module Instapaper
-  class User
-    include Virtus.value_object
+  class User < Dry::Struct
+    include Types
+    transform_keys(&:to_sym)
 
-    values do
-      attribute :username, String
-      attribute :user_id, Integer
-      attribute :type, String
-      attribute :subscription_is_active, Axiom::Types::Boolean
-    end
+    attribute :username, Types::String
+    attribute :user_id, Types::Integer
+    attribute :type, Types::String
+    attribute? :subscription_is_active, Types::BooleanFlag.optional
   end
 end