Decode Coinbase hex

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

@@ -204,7 +204,7 @@
                 <dd class="mt-1 text-sm text-gray-900 dark:text-gray-50">
                    <a href={'/transactions/#{@tx.txid}/raw'} class="font-medium text-indigo-600 hover:text-indigo-500">
                   <span class="flex-1 w-0 break-all">
-                   JSON 
+                   JSON
                   </span>
                   </a>
 
@@ -216,11 +216,11 @@
                 Orchard Action transfers
                 </dt>
                 <dd class="mt-1 text-sm text-gray-900 dark:text-gray-50">
-              
+
                   <span class="flex-1 w-0 break-all">
                    <%= orchard_actions(@tx) %>
                   </span>
-                  
+
 
                 </dd>
               </div>
@@ -245,7 +245,7 @@
           <li class="pl-3 pr-4 py-3 flex items-center justify-between text-sm hover:bg-indigo-50 dark:hover:bg-gray-800">
             <div class="w-0 flex-1 flex items-center dark:text-gray-50">
 
-              
+
               <a href={'/address/#{input.address}'}>
 
             <span class="flex-1 w-0 break-all">
@@ -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 %>
@@ -304,7 +316,7 @@ Outputs (<%= vout_count(@tx.vout) %>)
           <%= for address <- op.scriptPubKey.addresses do %>
 
           <li class="pl-2 pr-4 py-3 flex items-center justify-between text-sm hover:bg-indigo-50 dark:hover:bg-gray-800">
-            
+
             <div class="w-0 flex-1 flex items-center">
             <a href={'/address/#{address }'}>
             <span class="flex-1 w-0 break-all dark:text-gray-50">
@@ -340,4 +352,4 @@ Outputs (<%= vout_count(@tx.vout) %>)
 </div>
 </div>
 </div>
-</main>
+</main>

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"