fix: sync GraphQL language enum with SmartContract schema (blockscout#14109)

Co-authored-by: Victor Baranov <baranov.viktor.27@gmail.com>

Author: dylantirandaz

apps/block_scout_web/lib/block_scout_web/graphql/schema/types.ex

@@ -107,10 +107,11 @@ end
 
 defmodule BlockScoutWeb.GraphQL.Schema.Types do
   @moduledoc false
-  use Utils.CompileTimeEnvHelper, chain_type: [:explorer, :chain_type]
 
   require BlockScoutWeb.GraphQL.Schema.{Transaction, SmartContracts}
 
+  alias Ecto.Enum
+
   use Absinthe.Schema.Notation
   use Absinthe.Relay.Schema.Notation, :modern
 
@@ -124,23 +125,9 @@ defmodule BlockScoutWeb.GraphQL.Schema.Types do
 
   alias BlockScoutWeb.GraphQL.Schema.SmartContracts, as: SmartContractsSchema
   alias BlockScoutWeb.GraphQL.Schema.Transaction, as: TransactionSchema
+  alias Explorer.Chain.SmartContract
 
-  # TODO: leverage `Ecto.Enum.values(SmartContract, :language)` to deduplicate
-  # language definitions
-  @default_languages ~w(solidity vyper yul)a
-
-  case @chain_type do
-    :arbitrum ->
-      @chain_type_languages ~w(stylus_rust)a
-
-    :zilliqa ->
-      @chain_type_languages ~w(scilla)a
-
-    _ ->
-      @chain_type_languages ~w()a
-  end
-
-  enum(:language, values: @default_languages ++ @chain_type_languages)
+  enum(:language, values: Enum.values(SmartContract, :language))
 
   import_types(Absinthe.Type.Custom)
   import_types(BlockScoutWeb.GraphQL.Schema.Scalars)

apps/block_scout_web/test/block_scout_web/graphql/schema/query/address_test.exs

@@ -97,6 +97,39 @@ defmodule BlockScoutWeb.GraphQL.Schema.Query.AddressTest do
              }
     end
 
+    test "smart_contract language field returns all supported languages", %{conn: conn} do
+      for language <- [:solidity, :vyper, :yul, :geas] do
+        address = insert(:address, fetched_coin_balance: 100)
+        insert(:smart_contract, address_hash: address.hash, contract_code_md5: "123", language: language)
+
+        query = """
+        query ($hash: AddressHash!) {
+          address(hash: $hash) {
+            smart_contract {
+              language
+            }
+          }
+        }
+        """
+
+        variables = %{"hash" => to_string(address.hash)}
+
+        conn = get(conn, "/api/v1/graphql", query: query, variables: variables)
+
+        expected = language |> to_string() |> String.upcase()
+
+        assert %{
+                 "data" => %{
+                   "address" => %{
+                     "smart_contract" => %{
+                       "language" => ^expected
+                     }
+                   }
+                 }
+               } = json_response(conn, 200)
+      end
+    end
+
     test "errors for non-existent address hash", %{conn: conn} do
       address = build(:address)