feat: add logout

lib/swipex_web/controllers/page.ex

@@ -64,4 +64,17 @@ defmodule SwipexWeb.PageController do
     |> put_flash(:error, "Invalid name or password.")
     |> redirect(to: "/login")
   end
+
+  def logout(conn, _params) do
+    case get_session(conn, :user_id) do
+      nil ->
+        redirect(conn, to: "/")
+
+      _ ->
+        conn
+        |> delete_session(:user_id)
+        |> put_flash(:info, "Logged out successfully!")
+        |> redirect(to: "/login")
+    end
+  end
 end

lib/swipex_web/live/profile_live.ex

@@ -122,6 +122,8 @@ defmodule SwipexWeb.ProfileLive do
           </div>
         <% end %>
       </div>
+      <hr />
+      <a href="/logout" class="text-red-500">Logout</a>
     </div>
     """
   end

lib/swipex_web/router.ex

@@ -23,6 +23,7 @@ defmodule SwipexWeb.Router do
     post "/register", PageController, :do_register
     get "/login", PageController, :login
     post "/login", PageController, :do_login
+    get "/logout", PageController, :logout
 
     live_session :default, on_mount: [{SwipexWeb.Profile, :current_user}] do
       live "/profile", ProfileLive, :index