feat: Import more chat images

lib/bdfr_browser/importer.ex

@@ -327,13 +327,14 @@ defmodule BdfrBrowser.Importer do
 
   defp import_message(message, chat) when not is_nil(chat) do
     id = :sha3_256 |> :crypto.hash([chat.id, message["timestamp"]]) |> Base.encode16(case: :lower)
+    message_content = message["content"]["Message"]
     {:ok, posted_at, 0} = DateTime.from_iso8601(message["timestamp"])
 
-    {:ok, message} =
+    {:ok, message_record} =
       %Message{
         id: id,
         author: message["author"],
-        message: message["content"]["Message"],
+        message: message_content,
         posted_at: posted_at,
         chat: chat
       }
@@ -342,6 +343,14 @@ defmodule BdfrBrowser.Importer do
         conflict_target: :id
       )
 
-    message
+    message_record =
+      if message_record.message == "Image" and String.starts_with?(message_content, "mxc://") do
+        changeset = Ecto.Changeset.change(message_record, %{message: message_content})
+        Repo.update(changeset)
+      else
+        message_record
+      end
+
+    message_record
   end
 end

lib/bdfr_browser/render_utils.ex

@@ -12,7 +12,25 @@ defmodule BdfrBrowser.RenderUtils do
       "<p class=\"text-center\"><img src=\"/chat_media/\\1\" class=\"img-fluid\" loading=\"lazy\" /></p>"
 
     msg
+    |> maybe_insert_image(img_replacement)
     |> String.replace(~r/https:\/\/i\.redd\.it\/(.+)/, img_replacement)
     |> Earmark.as_html!()
   end
+
+  # Helper
+
+  defp maybe_insert_image(<<"mxc://reddit.com/", filename::binary>> = msg, replacement) do
+    chat_directory = Application.fetch_env!(:bdfr_browser, :chat_directory)
+    img_directory = Path.join([chat_directory, "images"])
+    imgs = Path.wildcard("#{img_directory}/#{filename}.*")
+
+    if Enum.empty?(imgs) do
+      msg
+    else
+      img = hd(imgs)
+      String.replace(replacement, "\\1", Path.basename(img))
+    end
+  end
+
+  defp maybe_insert_image(msg, _replacement), do: msg
 end