Support search-style prefixes in bracketed links

lib/music_library_web/markdown.ex

@@ -5,6 +5,7 @@ defmodule MusicLibraryWeb.Markdown do
   Text wrapped in double square brackets like `[[Foo]]` will be rendered as 
   search links to the collection page.
   """
+  alias MusicLibrary.Records
 
   @doc """
   Converts markdown with custom `[[link]]` syntax to HTML.
@@ -22,21 +23,37 @@ defmodule MusicLibraryWeb.Markdown do
   @doc """
   Processes text to convert [[text]] patterns into markdown links.
 
+  Supports prefixed queries like `[[artist:Blackfield]]` where the link text
+  shows only the value (e.g. "Blackfield") but the search query uses the full
+  prefixed content.
+
   ## Examples
 
       iex> MusicLibraryWeb.Markdown.process_double_bracket_links("Check out [[Porcupine Tree]]")
       "Check out [Porcupine Tree](/collection?query=Porcupine+Tree)"
-      
+
       iex> MusicLibraryWeb.Markdown.process_double_bracket_links("Albums like [[Steven Wilson - The Raven That Refused to Sing (and Other Stories) (2013)]] are great")
       "Albums like [Steven Wilson - The Raven That Refused to Sing (and Other Stories) (2013)](/collection?query=Steven+Wilson+-+The+Raven+That+Refused+to+Sing+%28and+Other+Stories%29+%282013%29) are great"
+
+      iex> MusicLibraryWeb.Markdown.process_double_bracket_links("Listen to [[artist:Blackfield]]")
+      "Listen to [Blackfield](/collection?query=artist%3ABlackfield)"
+
+      iex> MusicLibraryWeb.Markdown.process_double_bracket_links(~s|[[genre:"psychedelic rock"]]|)
+      ~s|[psychedelic rock](/collection?query=genre%3A%22psychedelic+rock%22)|
   """
   def process_double_bracket_links(text) do
-    # Regex to match [[text]] patterns
     ~r/\[\[([^\]]+)\]\]/
     |> Regex.replace(text, fn _match, content ->
-      # URL encode the content for the search query
       encoded_content = URI.encode_www_form(content)
-      "[#{content}](/collection?query=#{encoded_content})"
+      "[#{display_text(content)}](/collection?query=#{encoded_content})"
     end)
   end
+
+  defp display_text(content) do
+    case Records.SearchParser.parse(content) do
+      {:ok, %{query: _}} -> content
+      {:ok, parsed} when map_size(parsed) == 1 -> parsed |> Map.values() |> hd() |> to_string()
+      _ -> content
+    end
+  end
 end