Search v1 (#19)

* Adds description to media items; hooks it up to indexing/media downloading

* Added a search method using postgres fulltext search

* Hooked up search functionality to the search form

* Added persistence to the search form when on search page

lib/pinchflat_web/controllers/searches/search_html.ex

@@ -0,0 +1,25 @@
+defmodule PinchflatWeb.Searches.SearchHTML do
+  use PinchflatWeb, :html
+
+  embed_templates "search_html/*"
+
+  @doc """
+  Highlight search terms in a string of text based on `[PF_HIGHLIGHT]` and `[/PF_HIGHLIGHT]` tags
+  """
+  attr :text, :string, required: true
+
+  def highlight_search_terms(assigns) do
+    split_string = String.split(assigns.text, ~r{\[PF_HIGHLIGHT\]|\[/PF_HIGHLIGHT\]}, include_captures: true)
+    assigns = assign(assigns, split_string: split_string)
+
+    ~H"""
+    <%= for fragment <- @split_string do %>
+      <%= render_fragment(fragment) %>
+    <% end %>
+    """
+  end
+
+  defp render_fragment("[PF_HIGHLIGHT]"), do: raw(~s(<span class="font-bold italic">))
+  defp render_fragment("[/PF_HIGHLIGHT]"), do: raw("</span>")
+  defp render_fragment(text), do: text
+end