Add reading_time and posting calendar reports (#1)

Author: xfalcox

app/services/discourse_rewind/rewind/action/create_posts_count_report.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+# For a GitHub like calendar
+# https://docs.github.com/assets/cb-35216/mw-1440/images/help/profile/contributions-graph.webp
+module DiscourseRewind
+  class Rewind::Action::PostingCalendar < Service::ActionBase
+    option :user
+    option :date
+
+    def call
+      calendar =
+        Post
+          .where(user: user)
+          .where(created_at: date)
+          .select("DATE(created_at) as date, count(*) as count")
+          .group("DATE(created_at)")
+          .order("DATE(created_at)")
+          .map { |post| { date: post.date, count: post.count } }
+
+      { data: calendar, identifier: "posting-calendar" }
+    end
+  end
+end

app/services/discourse_rewind/rewind/action/posting_calendar.rb

@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+# For showcasing the reading time of a user
+# Should we show book covers or just the names?
+module DiscourseRewind
+  class Rewind::Action::ReadingTime < Service::ActionBase
+    option :user
+    option :date
+
+    def call
+      reading_time = UserVisit.where(user: user).where(visited_at: date).sum(:time_read)
+
+      {
+        data: {
+          reading_time: reading_time,
+          books: best_book_fit(reading_time),
+        },
+        identifier: "reading-time",
+      }
+    end
+
+    def popular_book_reading_time
+      {
+        "The Hunger Games" => 19_740,
+        "The Metamorphosis" => 3120,
+        "To Kill a Mockingbird" => 22_800,
+        "Pride and Prejudice" => 25_200,
+        "1984" => 16_800,
+        "The Lord of the Rings" => 108_000,
+        "Harry Potter and the Sorcerer's Stone" => 24_600,
+        "The Great Gatsby" => 12_600,
+        "The Little Prince" => 5400,
+        "Animal Farm" => 7200,
+        "The Catcher in the Rye" => 18_000,
+        "Jane Eyre" => 34_200,
+        "Fahrenheit 451" => 15_000,
+        "The Hobbit" => 27_000,
+        "The Da Vinci Code" => 37_800,
+        "Little Women" => 30_000,
+        "One Hundred Years of Solitude" => 46_800,
+        "And Then There Were None" => 16_200,
+        "The Alchemist" => 10_800,
+        "The Hitchhiker's Guide to the Galaxy" => 12_600,
+      }
+    end
+
+    def best_book_fit(reading_time)
+      reading_time_rest = reading_time
+      books = []
+      while reading_time_rest > 0
+        books << popular_book_reading_time.min_by { |_, v| (v - reading_time_rest).abs }.first
+        reading_time_rest -= popular_book_reading_time[books.last]
+      end
+      books.group_by(&:itself).transform_values(&:count)
+    end
+  end
+end

app/services/discourse_rewind/rewind/action/reading_time.rb

@@ -23,7 +23,10 @@ class Rewind::Fetch
     #   @return [Service::Base::Context]
 
     # order matters, rewinds are displayed in the order they are defined
-    REPORTS = [DiscourseRewind::Rewind::Action::CreatePostsCountReport]
+    REPORTS = [
+      DiscourseRewind::Rewind::Action::ReadingTime,
+      DiscourseRewind::Rewind::Action::PostingCalendar,
+    ].freeze
 
     CACHE_DURATION = 5.minutes