Decode Coinbase hex

lib/zcash_explorer_web/templates/transaction/tx.html.heex

@@ -263,10 +263,22 @@
        </dd>
        <% end %>
 <%= if ZcashExplorerWeb.BlockView.tx_type(@tx) == "coinbase" do %>
+
 <div class="py-4">
+
   <span class="inline-flex items-center px-2.5 py-0.5 rounded-full text-s font-medium bg-yellow-400 text-gray-900 capitalize">
                   💰 Coinbase
   </span>
+
+
+  <%= if String.length(ZcashExplorerWeb.BlockView.get_coinbase_hex(@tx)) > 5 do %>
+  <span class="inline-block bg-sky-100 px-2.5 font-bold text-sm text-slate-900 font-mono rounded dark:bg-slate-600 dark:text-slate-200 br">
+  <%=  ZcashExplorerWeb.BlockView.get_coinbase_hex(@tx) %>
+  </span>
+
+
+  <% end %>
+
 </div>
 <% end %>
 <%= if ZcashExplorerWeb.BlockView.tx_type(@tx) == "deshielding" do %>

lib/zcash_explorer_web/views/block_view.ex

@@ -46,6 +46,27 @@ defmodule ZcashExplorerWeb.BlockView do
     end
   end
 
+  def get_coinbase_hex(tx) do
+    tx
+    |> Map.get(:vin)
+    |> List.first()
+    |> Map.get(:coinbase)
+    |> decode_coinbase_tx_hex()
+
+    # |> String.normalize(:nfkc)
+  end
+
+  def decode_coinbase_tx_hex(coinbase_hex)
+      when is_binary(coinbase_hex) do
+    try do
+      coinbase_binary = Base.decode16!(coinbase_hex, case: :mixed)
+      coinbase_list = :erlang.binary_to_list(coinbase_binary)
+      List.to_string(coinbase_list) |> IO.inspect(charlists: :as_charlists)
+    rescue
+      _e in ArgumentError -> "unable to decode coinbase hex"
+    end
+  end
+
   def mined_by(txs) do
     first_trx = txs |> List.first()
 
@@ -152,8 +173,6 @@ defmodule ZcashExplorerWeb.BlockView do
   end
 
   def tx_type(tx) do
-    IO.inspect(tx)
-
     cond do
       is_coinbase_tx?(tx) ->
         "coinbase"