add decompiled contract tab endpoint

apps/block_scout_web/lib/block_scout_web/controllers/address_decompiled_contract_controller.ex

@@ -0,0 +1,30 @@
+defmodule BlockScoutWeb.AddressDecompiledContractController do
+  use BlockScoutWeb, :controller
+
+  import BlockScoutWeb.AddressController, only: [transaction_count: 1, validation_count: 1]
+
+  alias Explorer.{Chain, Market}
+  alias Explorer.ExchangeRates.Token
+  alias Indexer.CoinBalance.OnDemandFetcher
+
+  def index(conn, %{"address_id" => address_hash_string}) do
+    with {:ok, address_hash} <- Chain.string_to_address_hash(address_hash_string),
+         {:ok, address} <- Chain.find_decompiled_contract_address(address_hash) do
+      render(
+        conn,
+        "index.html",
+        address: address,
+        coin_balance_status: OnDemandFetcher.trigger_fetch(address),
+        exchange_rate: Market.get_exchange_rate(Explorer.coin()) || Token.null(),
+        transaction_count: transaction_count(address),
+        validation_count: validation_count(address)
+      )
+    else
+      :error ->
+        not_found(conn)
+
+      {:error, :not_found} ->
+        not_found(conn)
+    end
+  end
+end

apps/block_scout_web/lib/block_scout_web/router.ex

@@ -129,6 +129,13 @@ defmodule BlockScoutWeb.Router do
         as: :contract
       )
 
+      resources(
+        "/decompiled_contracts",
+        AddressDecompiledContractController,
+        only: [:index],
+        as: :decompiled_contract
+      )
+
       resources(
         "/contract_verifications",
         AddressContractVerificationController,