add global_assigns and public pipeline

lib/chiya_web/global_assigns.ex

@@ -0,0 +1,21 @@
+defmodule ChiyaWeb.GlobalAssigns do
+  import Plug.Conn
+
+  def fetch_settings(conn, _opts) do
+    settings = Chiya.Site.get_settings()
+    assign(conn, :settings, settings)
+  end
+
+  def fetch_identities(conn, _opts) do
+    identities = Chiya.Identities.list_identities()
+    assign(conn, :identities, identities)
+  end
+
+  def fetch_public_channels(conn, _opts) do
+    channels =
+      Chiya.Channels.list_channels()
+      |> Enum.filter(fn c -> c.visibility == :public end)
+
+    assign(conn, :channels, channels)
+  end
+end

lib/chiya_web/router.ex

@@ -2,6 +2,7 @@ defmodule ChiyaWeb.Router do
   use ChiyaWeb, :router
 
   import ChiyaWeb.UserAuth
+  import ChiyaWeb.GlobalAssigns
 
   pipeline :browser do
     plug :accepts, ["html"]
@@ -13,6 +14,11 @@ defmodule ChiyaWeb.Router do
     plug :fetch_current_user
   end
 
+  pipeline :public do
+    plug :fetch_settings
+    plug :fetch_identities
+  end
+
   pipeline :api do
     plug :accepts, ["json"]
   end
@@ -93,7 +99,7 @@ defmodule ChiyaWeb.Router do
   ## Public routes
 
   scope "/", ChiyaWeb do
-    pipe_through :browser
+    pipe_through [:browser, :public]
 
     get "/:slug", PageController, :channel
     get "/", PageController, :home