Add following and followers

lib/nulla_web/components/templates/user/show.html.heex

@@ -66,9 +66,9 @@
         </dl>
       <% end %>
       <div class="flex mt-5 gap-3">
-        <a href={~p"/@#{@user.username}"}>1.7K Posts</a>
-        <a href={~p"/@#{@user.username}/following"}>33 Following</a>
-        <a href={~p"/@#{@user.username}/followers"}>31 Followers</a>
+        <a href={~p"/@#{@user.username}"}>{length(@notes)} Posts</a>
+        <a href={~p"/@#{@user.username}/following"}>{@following} Following</a>
+        <a href={~p"/@#{@user.username}/followers"}>{@followers} Followers</a>
       </div>
     </div>
     <div class="flex justify-between px-20 py-2 mt-5 border-y border-gray-300">

lib/nulla_web/controllers/follow_controller.ex

@@ -0,0 +1,65 @@
+defmodule NullaWeb.FollowController do
+  use NullaWeb, :controller
+  alias Nulla.Models.User
+  alias Nulla.Models.InstanceSettings
+  alias Nulla.ActivityPub
+  alias Nulla.Utils
+
+  def following(conn, %{"username" => username, "page" => page_param}) do
+    instance_settings = InstanceSettings.get_instance_settings!()
+    domain = instance_settings.domain
+    offset = instance_settings.offset
+    user = User.get_user_by_username!(username)
+    total = Utils.count_following_by_username!(user.username)
+    page =
+    case Integer.parse(page_param) do
+      {int, _} when int > 0 -> int
+      _ -> 1
+    end
+    following_list = Utils.get_following_users_by_username!(user.username, page)
+
+    conn
+      |> put_resp_content_type("application/activity+json")
+      |> json(ActivityPub.following(domain, user, total, following_list, page, offset))
+  end
+
+  def following(conn, %{"username" => username}) do
+    instance_settings = InstanceSettings.get_instance_settings!()
+    domain = instance_settings.domain
+    user = User.get_user_by_username!(username)
+    total = Utils.count_following_by_username!(user.username)
+
+    conn
+      |> put_resp_content_type("application/activity+json")
+      |> json(ActivityPub.following(domain, user, total))
+  end
+
+  def followers(conn, %{"username" => username, "page" => page_param}) do
+    instance_settings = InstanceSettings.get_instance_settings!()
+    domain = instance_settings.domain
+    offset = instance_settings.offset
+    user = User.get_user_by_username!(username)
+    total = Utils.count_followers_by_username!(user.username)
+    page =
+    case Integer.parse(page_param) do
+      {int, _} when int > 0 -> int
+      _ -> 1
+    end
+    followers_list = Utils.get_followers_by_username!(user.username, page)
+
+    conn
+      |> put_resp_content_type("application/activity+json")
+      |> json(ActivityPub.followers(domain, user, total, followers_list, page, offset))
+  end
+
+  def followers(conn, %{"username" => username}) do
+    instance_settings = InstanceSettings.get_instance_settings!()
+    domain = instance_settings.domain
+    user = User.get_user_by_username!(username)
+    total = Utils.count_followers_by_username!(user.username)
+
+    conn
+      |> put_resp_content_type("application/activity+json")
+      |> json(ActivityPub.followers(domain, user, total))
+  end
+end

lib/nulla_web/controllers/user_controller.ex

@@ -4,6 +4,7 @@ defmodule NullaWeb.UserController do
   alias Nulla.Models.Note
   alias Nulla.Models.InstanceSettings
   alias Nulla.ActivityPub
+  alias Nulla.Utils
 
   def show(conn, %{"username" => username}) do
     accept = List.first(get_req_header(conn, "accept"))
@@ -17,7 +18,19 @@ defmodule NullaWeb.UserController do
       |> put_resp_content_type("application/activity+json")
       |> json(ActivityPub.user(domain, user))
     else
-      render(conn, :show, domain: domain, user: user, notes: notes, layout: false)
+      following = Utils.count_following_by_username!(user.username)
+      followers = Utils.count_followers_by_username!(user.username)
+
+      render(
+        conn,
+        :show,
+        domain: domain,
+        user: user,
+        notes: notes,
+        following: following,
+        followers: followers,
+        layout: false
+      )
     end
   end
 end

lib/nulla_web/router.ex

@@ -22,6 +22,8 @@ defmodule NullaWeb.Router do
     pipe_through :browser
 
     get "/@:username", UserController, :show
+    get "/@:username/following", FollowController, :following
+    get "/@:username/followers", FollowController, :followers
     get "/@:username/:note_id", NoteController, :show
   end