Refactor micropub specific things out to a slice

slices/micropub/decorators/posts/decorator.rb

@@ -0,0 +1,167 @@
+# frozen_string_literal: false
+
+# auto_register: false
+
+require "rexml/parsers/pullparser"
+require "sanitize"
+
+module Micropub
+  module Decorators
+    module Posts
+      class Decorator < SimpleDelegator
+        def syndicated?
+          !syndication_sources.empty?
+        end
+
+        def syndicated_to
+          syndication_sources.map do |source, url|
+            {
+              location: source,
+              url: url
+            }
+          end
+        end
+
+        def photos?
+          __getobj__.photos.count { |p| !p["value"].end_with?("mp4") } > 0
+        end
+
+        def photos
+          __getobj__.photos.select { |p| !p["value"].end_with?("mp4") }
+        end
+
+        def videos?
+          __getobj__.photos.count { |p| p["value"].end_with?("mp4") } > 0
+        end
+
+        def videos
+          __getobj__.photos.select { |p| p["value"].end_with?("mp4") }
+        end
+
+        def prefix_emoji
+          if name
+            ""
+          elsif photos? && content == ""
+            "📷"
+          else
+            "💬"
+          end
+        end
+
+        def display_title
+          title = name
+          "#{prefix_emoji} #{title}"
+        end
+
+        def display_published_at
+          published_at.strftime("%e %B, %Y")
+        end
+
+        def machine_published_at
+          published_at.rfc2822
+        end
+
+        def feed_content
+          photos? ? "<div>#{photos.map { |p| "<img src='#{p["value"]}'/>" }.join("")} #{content}</div>" : content
+        end
+
+        def raw_content
+          Sanitize.fragment(content)
+        end
+
+        def excerpt
+          name ? truncate_html(content, 240, true) : content
+        end
+
+        def permalink
+          "#{Hanami.app.settings.micropub_site_url}/post/#{slug}"
+        end
+
+        def lat
+          geo[0]
+        end
+
+        def lon
+          geo[1]
+        end
+
+        def small_map
+          "https://api.mapbox.com/styles/v1/dnitza/cleb2o734000k01pbifls5620/static/pin-s+555555(#{lon},#{lat})/#{lon},#{lat},14,0/200x100@2x?access_token=pk.eyJ1IjoiZG5pdHphIiwiYSI6ImNsZWIzOHFmazBkODIzdm9kZHgxdDF4ajQifQ.mSneE-1SKeju8AOz5gp4BQ"
+        end
+
+        def large_map
+          "https://api.mapbox.com/styles/v1/dnitza/cleb2o734000k01pbifls5620/static/pin-s+555555(#{lon},#{lat})/#{lon},#{lat},14,0/620x310@2x?access_token=pk.eyJ1IjoiZG5pdHphIiwiYSI6ImNsZWIzOHFmazBkODIzdm9kZHgxdDF4ajQifQ.mSneE-1SKeju8AOz5gp4BQ"
+        end
+
+        def template_type
+          :post
+        end
+
+        def posted_in
+          if name.nil?
+            :statuses
+          elsif post_type.to_sym == :book
+            :bookshelf
+          elsif location.nil?
+            :posts
+          else
+            :places
+          end
+        end
+
+        def trips
+          __getobj__.trips
+        end
+
+        private
+
+        # e.g. geo:-37.75188,144.90417;u=35
+        def geo
+          loc = location.split(":")[1]
+          p = loc.split(";")[0]
+
+          p.split(",")
+        end
+
+        def truncate_html(content, len = 30, at_end = nil)
+          return content if content.to_s.length <= len
+
+          p = REXML::Parsers::PullParser.new(content)
+          tags = []
+          new_len = len
+          results = ""
+          while p.has_next? && new_len > 0
+            p_e = p.pull
+            case p_e.event_type
+            when :start_element
+              tags.push p_e[0]
+              results << "<#{tags.last}#{attrs_to_s(p_e[1])}>"
+            when :end_element
+              results << "</#{tags.pop}>"
+            when :text
+              results << p_e[0][0..new_len]
+              new_len -= p_e[0].length
+            else
+              results << "<!-- #{p_e.inspect} -->"
+            end
+          end
+          if at_end
+            results << "..."
+          end
+          tags.reverse_each do |tag|
+            results << "</#{tag}>"
+          end
+          results
+        end
+
+        def attrs_to_s(attrs)
+          if attrs.empty?
+            ""
+          else
+            " " + attrs.to_a.map { |attr| %(#{attr[0]}="#{attr[1]}") }.join(" ")
+          end
+        end
+      end
+    end
+  end
+end