add endpoint to create decompiled smart contracts

apps/block_scout_web/lib/block_scout_web/router.ex

@@ -22,6 +22,8 @@ defmodule BlockScoutWeb.Router do
     pipe_through(:api)
 
     get("/supply", SupplyController, :supply)
+
+    resources("/decompiled_smart_contract", DecompiledSmartContractController, only: [:create])
   end
 
   scope "/api", BlockScoutWeb.API.RPC do

apps/explorer/lib/explorer/chain.ex

@@ -31,6 +31,7 @@ defmodule Explorer.Chain do
     Block,
     BlockNumberCache,
     Data,
+    DecompiledSmartContract,
     Hash,
     Import,
     InternalTransaction,
@@ -512,6 +513,17 @@ defmodule Explorer.Chain do
     |> Repo.insert()
   end
 
+  @doc """
+  Creates a decompiled smart contract.
+  """
+
+  @spec create_decompiled_smart_contract(map()) :: {:ok, Address.t()} | {:error, Ecto.Changeset.t()}
+  def create_decompiled_smart_contract(attrs) do
+    %DecompiledSmartContract{}
+    |> DecompiledSmartContract.changeset(attrs)
+    |> Repo.insert()
+  end
+
   @doc """
   Converts the `Explorer.Chain.Data.t:t/0` to `iodata` representation that can be written to users efficiently.
 

apps/explorer/lib/explorer/chain/decompiled_smart_contract.ex

@@ -14,6 +14,8 @@ defmodule Explorer.Chain.DecompiledSmartContract do
       references: :hash,
       type: Hash.Address
     )
+
+    timestamps()
   end
 
   def changeset(%__MODULE__{} = smart_contract, attrs) do

apps/explorer/test/explorer/chain_test.exs

@@ -2586,6 +2586,32 @@ defmodule Explorer.ChainTest do
     end
   end
 
+  describe "create_decompiled_smart_contract/1" do
+    test "with valid params creates decompiled smart contract" do
+      address_hash = to_string(insert(:address).hash)
+      decompiler_version = "test_decompiler"
+      decompiled_source_code = "hello world"
+
+      params = %{
+        address_hash: address_hash,
+        decompiler_version: decompiler_version,
+        decompiled_source_code: decompiled_source_code
+      }
+
+      {:ok, decompiled_smart_contract} = Chain.create_decompiled_smart_contract(params)
+
+      assert decompiled_smart_contract.decompiler_version == decompiler_version
+      assert decompiled_smart_contract.decompiled_source_code == decompiled_source_code
+      assert address_hash == to_string(decompiled_smart_contract.address_hash)
+    end
+
+    test "with invalid params can't create decompiled smart contract" do
+      params = %{code: "cat"}
+
+      {:error, _changeset} = Chain.create_decompiled_smart_contract(params)
+    end
+  end
+
   describe "create_smart_contract/1" do
     setup do
       smart_contract_bytecode =