Initial project setup

lib/ezdoc.rb

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+# frozen_string_literal: true
+
+require "nokogiri"
+
+require_relative "ezdoc/version"
+require_relative "ezdoc/xml/content_types"
+require_relative "ezdoc/xml/relationships"
+require_relative "ezdoc/xml/document_xml"
+require_relative "ezdoc/package"
+require_relative "ezdoc/document"
+
+module Ezdoc
+  class Error < StandardError; end
+end

lib/ezdoc/document.rb

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+# frozen_string_literal: true
+
+module Ezdoc
+  class Document
+    attr_reader :content
+
+    def self.create(path, &block)
+      doc = new
+      block.call(doc)
+      doc.save(path)
+      doc
+    end
+
+    def initialize
+      @content = []
+    end
+
+    def text(value)
+      @content << { text: value }
+    end
+
+    def save(path)
+      Package.new(self).save(path)
+    end
+  end
+end

lib/ezdoc/package.rb

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+# frozen_string_literal: true
+
+require "zip"
+
+module Ezdoc
+  class Package
+    def initialize(document)
+      @document = document
+    end
+
+    def save(path)
+      Zip::File.open(path, Zip::File::CREATE) do |zipfile|
+        zipfile.get_output_stream("[Content_Types].xml") { |f| f.write(content_types_xml) }
+        zipfile.get_output_stream("_rels/.rels") { |f| f.write(relationships_xml) }
+        zipfile.get_output_stream("word/_rels/document.xml.rels") { |f| f.write(document_relationships_xml) }
+        zipfile.get_output_stream("word/document.xml") { |f| f.write(document_xml) }
+      end
+    end
+
+    private
+
+    def content_types_xml
+      Xml::ContentTypes.new.to_xml
+    end
+
+    def relationships_xml
+      Xml::Relationships.new.to_xml
+    end
+
+    def document_relationships_xml
+      Xml::DocumentRelationships.new.to_xml
+    end
+
+    def document_xml
+      Xml::DocumentXml.new(@document.content).to_xml
+    end
+  end
+end

lib/ezdoc/version.rb

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+# frozen_string_literal: true
+
+module Ezdoc
+  VERSION = "0.0.1"
+end

lib/ezdoc/xml/content_types.rb

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+# frozen_string_literal: true
+
+module Ezdoc
+  module Xml
+    class ContentTypes
+      NAMESPACE = "http://schemas.openxmlformats.org/package/2006/content-types"
+
+      def to_xml
+        builder = Nokogiri::XML::Builder.new(encoding: "UTF-8") do |xml|
+          xml.Types(xmlns: NAMESPACE) do
+            xml.Default(Extension: "rels", ContentType: "application/vnd.openxmlformats-package.relationships+xml")
+            xml.Default(Extension: "xml", ContentType: "application/xml")
+            xml.Override(
+              PartName: "/word/document.xml",
+              ContentType: "application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml"
+            )
+          end
+        end
+        builder.to_xml
+      end
+    end
+  end
+end

lib/ezdoc/xml/document_xml.rb

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+# frozen_string_literal: true
+
+module Ezdoc
+  module Xml
+    class DocumentXml
+      NAMESPACES = {
+        "xmlns:w" => "http://schemas.openxmlformats.org/wordprocessingml/2006/main",
+        "xmlns:r" => "http://schemas.openxmlformats.org/officeDocument/2006/relationships"
+      }.freeze
+
+      def initialize(content)
+        @content = content
+      end
+
+      def to_xml
+        builder = Nokogiri::XML::Builder.new(encoding: "UTF-8") do |xml|
+          xml.document(NAMESPACES) do
+            xml.parent.namespace = xml.parent.namespace_definitions.find { |ns| ns.prefix == "w" }
+            xml["w"].body do
+              @content.each do |item|
+                xml["w"].p do
+                  xml["w"].r do
+                    xml["w"].t item[:text]
+                  end
+                end
+              end
+            end
+          end
+        end
+        builder.to_xml
+      end
+    end
+  end
+end

lib/ezdoc/xml/relationships.rb

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+# frozen_string_literal: true
+
+module Ezdoc
+  module Xml
+    class Relationships
+      NAMESPACE = "http://schemas.openxmlformats.org/package/2006/relationships"
+
+      def to_xml
+        builder = Nokogiri::XML::Builder.new(encoding: "UTF-8") do |xml|
+          xml.Relationships(xmlns: NAMESPACE) do
+            xml.Relationship(
+              Id: "rId1",
+              Type: "http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument",
+              Target: "word/document.xml"
+            )
+          end
+        end
+        builder.to_xml
+      end
+    end
+
+    class DocumentRelationships
+      NAMESPACE = "http://schemas.openxmlformats.org/package/2006/relationships"
+
+      def to_xml
+        builder = Nokogiri::XML::Builder.new(encoding: "UTF-8") do |xml|
+          xml.Relationships(xmlns: NAMESPACE)
+        end
+        builder.to_xml
+      end
+    end
+  end
+end