Read/unread a directory with API

src/library.cr

@@ -258,6 +258,26 @@ class Title
     end
   end
 
+  # Set the reading progress of all entries and nested libraries to 100%
+  def read_all(username)
+    @entries.each do |e|
+      save_progress username, e.title, e.pages
+    end
+    titles.each do |t|
+      t.read_all username
+    end
+  end
+
+  # Set the reading progress of all entries and nested libraries to 0%
+  def unread_all(username)
+    @entries.each do |e|
+      save_progress username, e.title, 0
+    end
+    titles.each do |t|
+      t.unread_all username
+    end
+  end
+
   # For backward backward compatibility with v0.1.0, we save entry titles
   #   instead of IDs in info.json
   def save_progress(username, entry, page)

src/routes/api.cr

@@ -69,16 +69,23 @@ class APIRouter < Router
       end
     end
 
-    post "/api/progress/:title/:entry/:page" do |env|
+    post "/api/progress/:title/:page" do |env|
       begin
         username = get_username env
         title = (@context.library.get_title env.params.url["title"])
           .not_nil!
-        entry = (title.get_entry env.params.url["entry"]).not_nil!
         page = env.params.url["page"].to_i
+        entry_id = env.params.query["entry"]?
 
-        raise "incorrect page value" if page < 0 || page > entry.pages
-        title.save_progress username, entry.title, page
+        if !entry_id.nil?
+          entry = title.get_entry(entry_id).not_nil!
+          raise "incorrect page value" if page < 0 || page > entry.pages
+          title.save_progress username, entry.title, page
+        elsif page == 0
+          title.unread_all username
+        else
+          title.read_all username
+        end
       rescue e
         @context.error e
         send_json env, {