Add author to post

Instead of passing Paragraphs to the PageConverter, it now receives all
the data from the response. This has the author so it can be parsed out.

spec/classes/page_converter_spec.cr

@@ -4,7 +4,7 @@ include Nodes
 
 describe PageConverter do
   it "sets the title and subtitle if present" do
-    paragraphs = Array(PostResponse::Paragraph).from_json <<-JSON
+    paragraph_json = <<-JSON
       [
         {
           "text": "Title",
@@ -24,15 +24,17 @@ describe PageConverter do
         }
       ]
     JSON
+    data_json = default_data_json(paragraph_json)
+    data = PostResponse::Data.from_json(data_json)
 
-    page = PageConverter.new.convert(paragraphs)
+    page = PageConverter.new.convert(data)
 
     page.title.should eq "Title"
     page.subtitle.should eq "Subtitle"
   end
 
   it "sets the title to the first paragraph if no title" do
-    paragraphs = Array(PostResponse::Paragraph).from_json <<-JSON
+    paragraph_json = <<-JSON
       [
         {
           "text": "Not a title",
@@ -44,14 +46,42 @@ describe PageConverter do
         }
       ]
     JSON
-    page = PageConverter.new.convert(paragraphs)
+    data_json = default_data_json(paragraph_json)
+    data = PostResponse::Data.from_json(data_json)
+
+    page = PageConverter.new.convert(data)
 
     page.title.should eq "Not a title"
     page.subtitle.should eq nil
   end
 
+  it "sets the author" do
+    data_json = <<-JSON
+      {
+        "post": {
+          "title": "This is a story",
+          "createdAt": 0,
+          "creator": {
+            "id": "abc123",
+            "name": "Author"
+          },
+          "content": {
+            "bodyModel": {
+              "paragraphs": []
+            }
+          }
+        }
+      }
+    JSON
+    data = PostResponse::Data.from_json(data_json)
+
+    page = PageConverter.new.convert(data)
+
+    page.author.should eq "Author"
+  end
+
   it "calls ParagraphConverter to convert the remaining paragraph content" do
-    paragraphs = Array(PostResponse::Paragraph).from_json <<-JSON
+    paragraph_json = <<-JSON
       [
         {
           "text": "Title",
@@ -79,8 +109,10 @@ describe PageConverter do
         }
       ]
     JSON
+    data_json = default_data_json(paragraph_json)
+    data = PostResponse::Data.from_json(data_json)
 
-    page = PageConverter.new.convert(paragraphs)
+    page = PageConverter.new.convert(data)
 
     page.nodes.should eq [
       Paragraph.new([
@@ -89,3 +121,23 @@ describe PageConverter do
     ]
   end
 end
+
+def default_data_json(paragraph_json : String)
+  <<-JSON
+    {
+      "post": {
+        "title": "This is a story",
+        "createdAt": 1628974309758,
+        "creator": {
+          "id": "abc123",
+          "name": "Author"
+        },
+        "content": {
+          "bodyModel": {
+            "paragraphs": #{paragraph_json}
+          }
+        }
+      }
+    }
+  JSON
+end

spec/components/page_content_spec.cr

@@ -7,6 +7,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Paragraph.new(children: [
           Text.new(content: "hi"),
@@ -23,6 +24,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Paragraph.new(children: [
           Text.new(content: "Hello, "),
@@ -50,6 +52,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Anchor.new(children: [Text.new("link")] of Child, href: "https://example.com"),
       ] of Child
@@ -64,6 +67,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         BlockQuote.new(children: [
           Text.new("Wayne Gretzky. Michael Scott."),
@@ -80,6 +84,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Code.new(children: [
           Text.new("foo = bar"),
@@ -96,6 +101,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Paragraph.new(children: [
           Text.new(content: "This is "),
@@ -116,6 +122,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Figure.new(children: [
           Image.new(src: "image.png", originalWidth: 100, originalHeight: 200),
@@ -142,6 +149,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Heading2.new(children: [
           Text.new(content: "Title!"),
@@ -158,6 +166,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Heading3.new(children: [
           Text.new(content: "In Conclusion..."),
@@ -174,6 +183,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Paragraph.new(children: [
           Image.new(src: "image.png", originalWidth: 100, originalHeight: 200),
@@ -194,6 +204,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Paragraph.new(children: [
           IFrame.new(href: "https://example.com"),
@@ -216,6 +227,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         OrderedList.new(children: [
           ListItem.new(children: [Text.new("One")] of Child),
@@ -233,6 +245,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Paragraph.new(children: [
           Text.new("Hello, world!"),
@@ -249,6 +262,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Preformatted.new(children: [
           Text.new("New\nline"),
@@ -265,6 +279,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         Strong.new(children: [
           Text.new("Oh yeah!"),
@@ -281,6 +296,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         UnorderedList.new(children: [
           ListItem.new(children: [Text.new("Apple")] of Child),
@@ -298,6 +314,7 @@ describe PageContent do
     page = Page.new(
       title: "Title",
       subtitle: nil,
+      author: "Author",
       nodes: [
         UserAnchor.new(children: [Text.new("Some User")] of Child, userId: "abc123"),
       ] of Child

src/actions/articles/show.cr

@@ -7,9 +7,7 @@ class Articles::Show < BrowserAction
     else
       response = MediumClient.post_data(post_id)
     end
-    page = PageConverter.new.convert(
-      response.data.post.content.bodyModel.paragraphs
-    )
+    page = PageConverter.new.convert(response.data)
     html ShowPage, page: page
   end
 end

src/classes/page_converter.cr

@@ -1,18 +1,54 @@
+struct HeaderData
+  getter title : String
+  getter subtitle : String?
+
+  def initialize(@title : String, @subtitle : String?)
+  end
+
+  def first_content_paragraph_index : Int32
+    if title.blank?
+      0
+    elsif subtitle.nil? || subtitle.blank?
+      1
+    else
+      2
+    end
+  end
+end
+
 class PageConverter
-  def convert(paragraphs : Array(PostResponse::Paragraph)) : Page
+  def convert(data : PostResponse::Data) : Page
+    paragraphs = data.post.content.bodyModel.paragraphs
+    author = data.post.creator.name
+    header = header_data(paragraphs)
+    if header.first_content_paragraph_index.zero?
+      content = [] of PostResponse::Paragraph
+    else
+      content = paragraphs[header.first_content_paragraph_index..]
+    end
+    Page.new(
+      title: header.title,
+      subtitle: header.subtitle,
+      author: author,
+      nodes: ParagraphConverter.new.convert(content)
+    )
+  end
+
+  def header_data(paragraphs : Array(PostResponse::Paragraph)) : HeaderData
+    if paragraphs.empty?
+      return HeaderData.new("", nil)
+    end
     first_two_paragraphs = paragraphs.first(2)
     first_two_types = first_two_paragraphs.map(&.type)
     if first_two_types == [PostResponse::ParagraphType::H3, PostResponse::ParagraphType::H4]
-      Page.new(
+      HeaderData.new(
         title: first_two_paragraphs[0].text,
         subtitle: first_two_paragraphs[1].text,
-        nodes: ParagraphConverter.new.convert(paragraphs[2..]),
       )
     else
-      Page.new(
+      HeaderData.new(
         title: first_two_paragraphs[0].text,
         subtitle: nil,
-        nodes: ParagraphConverter.new.convert(paragraphs[1..]),
       )
     end
   end

src/models/page.cr

@@ -2,10 +2,12 @@ class Page
   getter nodes : Nodes::Children
   getter title : String
   getter subtitle : String?
+  getter author : String
 
   def initialize(
     @title : String,
     @subtitle : String?,
+    @author : String,
     @nodes : Nodes::Children = [] of Nodes::Child
   )
   end

src/pages/articles/show_page.cr

@@ -10,6 +10,9 @@ class Articles::ShowPage < MainLayout
     if subtitle = page.subtitle
       para subtitle, class: "subtitle"
     end
+    para do
+      text "#{page.author}"
+    end
     article do
       section do
         mount PageContent, page: page