Merge pull request #3076 from poanetwork/vb-check-if-address-has-reward

Speedup tx list query on address page: check if an address has a reward, check if this is actual payout key of the validator - beneficiary, return only mined txs in tx list query

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 ### Fixes
 - [#3077](https://github.com/poanetwork/blockscout/pull/3077) - Finally speedup pending tx list
+- [#3076](https://github.com/poanetwork/blockscout/pull/3076) - Speedup tx list query on address page: check if an address has a reward, check if this is actual payout key of the validator - beneficiary, return only mined txs in tx list query
 - [#3071](https://github.com/poanetwork/blockscout/pull/3071) - Speedup list of token transfers per token query
 - [#3070](https://github.com/poanetwork/blockscout/pull/3070) - Index creation to blazingly speedup token holders query
 - [#3064](https://github.com/poanetwork/blockscout/pull/3064) - Automatically define Block reward contract address in TokenBridge supply module

apps/block_scout_web/lib/block_scout_web/controllers/address_transaction_controller.ex

@@ -36,7 +36,7 @@ defmodule BlockScoutWeb.AddressTransactionController do
         |> Keyword.merge(paging_options(params))
         |> Keyword.merge(current_filter(params))
 
-      results_plus_one = Chain.address_to_transactions_with_rewards(address_hash, options)
+      results_plus_one = Chain.address_to_mined_transactions_with_rewards(address_hash, options)
       {results, next_page} = split_list_by_page(results_plus_one)
 
       next_page_url =
@@ -60,7 +60,6 @@ defmodule BlockScoutWeb.AddressTransactionController do
               View.render_to_string(
                 TransactionView,
                 "_emission_reward_tile.html",
-                conn: conn,
                 current_address: address,
                 emission_funds: emission_reward,
                 validator: validator_reward

apps/block_scout_web/lib/block_scout_web/notifier.ex

@@ -190,11 +190,15 @@ defmodule BlockScoutWeb.Notifier do
 
   defp broadcast_rewards(rewards) do
     preloaded_rewards = Repo.preload(rewards, [:address, :block])
+    emission_reward = Enum.find(preloaded_rewards, fn reward -> reward.address_type == :emission_funds end)
 
-    Enum.each(preloaded_rewards, fn reward ->
+    preloaded_rewards_except_emission =
+      Enum.reject(preloaded_rewards, fn reward -> reward.address_type == :emission_funds end)
+
+    Enum.each(preloaded_rewards_except_emission, fn reward ->
       Endpoint.broadcast("rewards:#{to_string(reward.address_hash)}", "new_reward", %{
-        emission_funds: Enum.at(preloaded_rewards, 1),
-        validator: Enum.at(preloaded_rewards, 0)
+        emission_funds: emission_reward,
+        validator: reward
       })
     end)
   end

apps/block_scout_web/lib/block_scout_web/templates/block/overview.html.eex

@@ -146,7 +146,7 @@
             <h2 class="card-title balance-card-title"><%= gettext "Block Rewards" %></h2>
             <div class="text-right" style="margin-left: 50%;" data-toggle="tooltip" data-placement="top" title="" data-original-title="Amount of distributed reward. Miners receive a static block reward + Tx fees + uncle fees.">
               <%= for block_reward <- @block.rewards do %>
-                <p class="address-current-balance"><%= block_reward_text(block_reward) %> <span class="text-muted"><%= format_wei_value(block_reward.reward, :ether) %></span></p>
+                <p class="address-current-balance"><%= block_reward_text(block_reward, @block.miner.hash) %> <span class="text-muted"><%= format_wei_value(block_reward.reward, :ether) %></span></p>
               <% end %>
             </div>
           <% else %>

apps/block_scout_web/lib/block_scout_web/views/block_view.ex

@@ -52,15 +52,25 @@ defmodule BlockScoutWeb.BlockView do
   def show_reward?([]), do: false
   def show_reward?(_), do: true
 
-  def block_reward_text(%Reward{address_type: :validator}) do
-    gettext("Miner Reward")
+  def block_reward_text(%Reward{address_hash: beneficiary_address, address_type: :validator}, block_miner_address) do
+    if Application.get_env(:explorer, Explorer.Chain.Block.Reward, %{})[:keys_manager_contract_address] do
+      %{payout_key: block_miner_payout_address} = Reward.get_validator_payout_key_by_mining(block_miner_address)
+
+      if beneficiary_address == block_miner_payout_address do
+        gettext("Miner Reward")
+      else
+        gettext("Chore Reward")
+      end
+    else
+      gettext("Miner Reward")
+    end
   end
 
-  def block_reward_text(%Reward{address_type: :emission_funds}) do
+  def block_reward_text(%Reward{address_type: :emission_funds}, _block_miner_address) do
     gettext("Emission Reward")
   end
 
-  def block_reward_text(%Reward{address_type: :uncle}) do
+  def block_reward_text(%Reward{address_type: :uncle}, _block_miner_address) do
     gettext("Uncle Reward")
   end
 

apps/block_scout_web/priv/gettext/default.pot

@@ -594,7 +594,7 @@ msgid "Emission Contract"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/block_view.ex:60
+#: lib/block_scout_web/views/block_view.ex:70
 msgid "Emission Reward"
 msgstr ""
 
@@ -1058,7 +1058,8 @@ msgid "Method Id"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/block_view.ex:56
+#: lib/block_scout_web/views/block_view.ex:60
+#: lib/block_scout_web/views/block_view.ex:65
 msgid "Miner Reward"
 msgstr ""
 
@@ -1524,7 +1525,7 @@ msgid "UTF-8"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/block_view.ex:64
+#: lib/block_scout_web/views/block_view.ex:74
 msgid "Uncle Reward"
 msgstr ""
 
@@ -1904,3 +1905,8 @@ msgstr ""
 #: lib/block_scout_web/views/transaction_view.ex:316
 msgid "Token Minting"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/block_view.ex:62
+msgid "Chore Reward"
+msgstr ""

apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -594,7 +594,7 @@ msgid "Emission Contract"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/block_view.ex:60
+#: lib/block_scout_web/views/block_view.ex:70
 msgid "Emission Reward"
 msgstr ""
 
@@ -1058,7 +1058,8 @@ msgid "Method Id"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/block_view.ex:56
+#: lib/block_scout_web/views/block_view.ex:60
+#: lib/block_scout_web/views/block_view.ex:65
 msgid "Miner Reward"
 msgstr ""
 
@@ -1524,7 +1525,7 @@ msgid "UTF-8"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/block_view.ex:64
+#: lib/block_scout_web/views/block_view.ex:74
 msgid "Uncle Reward"
 msgstr ""
 
@@ -1904,3 +1905,8 @@ msgstr ""
 #: lib/block_scout_web/views/transaction_view.ex:316
 msgid "Token Minting"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/block_view.ex:62
+msgid "Chore Reward"
+msgstr ""

apps/explorer/config/config.exs

@@ -137,6 +137,10 @@ else
   config :explorer, Explorer.Validator.MetadataProcessor, enabled: false
 end
 
+config :explorer, Explorer.Chain.Block.Reward,
+  validators_contract_address: System.get_env("VALIDATORS_CONTRACT"),
+  keys_manager_contract_address: System.get_env("KEYS_MANAGER_CONTRACT")
+
 config :explorer, Explorer.Staking.PoolsReader,
   validators_contract_address: System.get_env("POS_VALIDATORS_CONTRACT"),
   staking_contract_address: System.get_env("POS_STAKING_CONTRACT")

apps/explorer/lib/explorer/chain.ex

@@ -18,7 +18,8 @@ defmodule Explorer.Chain do
       union: 2,
       union_all: 2,
       where: 2,
-      where: 3
+      where: 3,
+      select: 3
     ]
 
   import EthereumJSONRPC, only: [integer_to_quantity: 1, fetch_block_internal_transactions: 2]
@@ -314,44 +315,64 @@ defmodule Explorer.Chain do
       the `block_number` and `index` that are passed.
 
   """
-  @spec address_to_transactions_with_rewards(Hash.Address.t(), [paging_options | necessity_by_association_option]) :: [
-          Transaction.t()
-        ]
-  def address_to_transactions_with_rewards(address_hash, options \\ []) when is_list(options) do
+  @spec address_to_mined_transactions_with_rewards(Hash.Address.t(), [paging_options | necessity_by_association_option]) ::
+          [
+            Transaction.t()
+          ]
+  def address_to_mined_transactions_with_rewards(address_hash, options \\ []) when is_list(options) do
     paging_options = Keyword.get(options, :paging_options, @default_paging_options)
 
     if Application.get_env(:block_scout_web, BlockScoutWeb.Chain)[:has_emission_funds] do
-      blocks_range = address_to_transactions_tasks_range_of_blocks(address_hash, options)
-
-      rewards_task =
-        Task.async(fn -> Reward.fetch_emission_rewards_tuples(address_hash, paging_options, blocks_range) end)
+      cond do
+        Keyword.get(options, :direction) == :from ->
+          address_to_mined_transactions_without_rewards(address_hash, options)
 
-      [rewards_task | address_to_transactions_tasks(address_hash, options)]
-      |> wait_for_address_transactions()
-      |> Enum.sort_by(fn item ->
-        case item do
-          {%Reward{} = emission_reward, _} ->
-            {-emission_reward.block.number, 1}
+        address_has_rewards?(address_hash) ->
+          %{payout_key: block_miner_payout_address} = Reward.get_validator_payout_key_by_mining(address_hash)
 
-          item ->
-            {-item.block_number, -item.index}
-        end
-      end)
-      |> Enum.dedup_by(fn item ->
-        case item do
-          {%Reward{} = emission_reward, _} ->
-            {emission_reward.block_hash, emission_reward.address_hash, emission_reward.address_type}
+          if block_miner_payout_address && address_hash == block_miner_payout_address do
+            transactions_with_rewards_results(address_hash, options, paging_options)
+          else
+            address_to_mined_transactions_without_rewards(address_hash, options)
+          end
 
-          transaction ->
-            transaction.hash
-        end
-      end)
-      |> Enum.take(paging_options.page_size)
+        true ->
+          address_to_mined_transactions_without_rewards(address_hash, options)
+      end
     else
-      address_to_transactions_without_rewards(address_hash, options)
+      address_to_mined_transactions_without_rewards(address_hash, options)
     end
   end
 
+  defp transactions_with_rewards_results(address_hash, options, paging_options) do
+    blocks_range = address_to_transactions_tasks_range_of_blocks(address_hash, options)
+
+    rewards_task =
+      Task.async(fn -> Reward.fetch_emission_rewards_tuples(address_hash, paging_options, blocks_range) end)
+
+    [rewards_task | address_to_mined_transactions_tasks(address_hash, options)]
+    |> wait_for_address_transactions()
+    |> Enum.sort_by(fn item ->
+      case item do
+        {%Reward{} = emission_reward, _} ->
+          {-emission_reward.block.number, 1}
+
+        item ->
+          {-item.block_number, -item.index}
+      end
+    end)
+    |> Enum.dedup_by(fn item ->
+      case item do
+        {%Reward{} = emission_reward, _} ->
+          {emission_reward.block_hash, emission_reward.address_hash, emission_reward.address_type}
+
+        transaction ->
+          transaction.hash
+      end
+    end)
+    |> Enum.take(paging_options.page_size)
+  end
+
   def address_to_transactions_without_rewards(address_hash, options) do
     paging_options = Keyword.get(options, :paging_options, @default_paging_options)
 
@@ -363,12 +384,33 @@ defmodule Explorer.Chain do
     |> Enum.take(paging_options.page_size)
   end
 
+  def address_to_mined_transactions_without_rewards(address_hash, options) do
+    paging_options = Keyword.get(options, :paging_options, @default_paging_options)
+
+    address_hash
+    |> address_to_mined_transactions_tasks(options)
+    |> wait_for_address_transactions()
+    |> Enum.sort_by(&{&1.block_number, &1.index}, &>=/2)
+    |> Enum.dedup_by(& &1.hash)
+    |> Enum.take(paging_options.page_size)
+  end
+
   defp address_to_transactions_tasks_query(options) do
     options
     |> Keyword.get(:paging_options, @default_paging_options)
     |> fetch_transactions()
   end
 
+  defp transactions_block_numbers_at_address(address_hash, options) do
+    direction = Keyword.get(options, :direction)
+
+    options
+    |> address_to_transactions_tasks_query()
+    |> Transaction.not_pending_transactions()
+    |> select([t], t.block_number)
+    |> Transaction.matching_address_queries_list(direction, address_hash)
+  end
+
   defp address_to_transactions_tasks(address_hash, options) do
     direction = Keyword.get(options, :direction)
     necessity_by_association = Keyword.get(options, :necessity_by_association, %{})
@@ -380,21 +422,30 @@ defmodule Explorer.Chain do
     |> Enum.map(fn query -> Task.async(fn -> Repo.all(query) end) end)
   end
 
-  defp address_to_transactions_tasks_range_of_blocks(address_hash, options) do
+  defp address_to_mined_transactions_tasks(address_hash, options) do
     direction = Keyword.get(options, :direction)
+    necessity_by_association = Keyword.get(options, :necessity_by_association, %{})
 
+    options
+    |> address_to_transactions_tasks_query()
+    |> Transaction.not_pending_transactions()
+    |> join_associations(necessity_by_association)
+    |> Transaction.matching_address_queries_list(direction, address_hash)
+    |> Enum.map(fn query -> Task.async(fn -> Repo.all(query) end) end)
+  end
+
+  def address_to_transactions_tasks_range_of_blocks(address_hash, options) do
     extremums_list =
-      options
-      |> address_to_transactions_tasks_query()
-      |> Transaction.matching_address_queries_list(direction, address_hash)
+      address_hash
+      |> transactions_block_numbers_at_address(options)
       |> Enum.map(fn query ->
-        max_query =
+        extremum_query =
           from(
             q in subquery(query),
             select: %{min_block_number: min(q.block_number), max_block_number: max(q.block_number)}
           )
 
-        max_query
+        extremum_query
         |> Repo.one!()
       end)
 
@@ -3216,6 +3267,13 @@ defmodule Explorer.Chain do
     Repo.exists?(query)
   end
 
+  @spec address_has_rewards?(Address.t()) :: boolean()
+  def address_has_rewards?(address_hash) do
+    query = from(r in Reward, where: r.address_hash == ^address_hash)
+
+    Repo.exists?(query)
+  end
+
   @spec address_tokens_with_balance(Hash.Address.t(), [any()]) :: []
   def address_tokens_with_balance(address_hash, paging_options \\ []) do
     address_hash

apps/explorer/lib/explorer/chain/address_token_transfer_csv_exporter.ex

@@ -36,7 +36,7 @@ defmodule Explorer.Chain.AddressTokenTransferCsvExporter do
 
     transactions =
       address_hash
-      |> Chain.address_to_transactions_with_rewards(options)
+      |> Chain.address_to_mined_transactions_with_rewards(options)
       |> Enum.filter(fn transaction -> Enum.count(transaction.token_transfers) > 0 end)
 
     new_acc = transactions ++ acc

apps/explorer/lib/explorer/chain/block/reward.ex

@@ -5,12 +5,36 @@ defmodule Explorer.Chain.Block.Reward do
 
   use Explorer.Schema
 
+  alias Explorer.Chain
   alias Explorer.Chain.Block.Reward.AddressType
   alias Explorer.Chain.{Address, Block, Hash, Wei}
   alias Explorer.{PagingOptions, Repo}
+  alias Explorer.SmartContract.Reader
 
   @required_attrs ~w(address_hash address_type block_hash reward)a
 
+  @get_payout_by_mining_abi %{
+    "type" => "function",
+    "stateMutability" => "view",
+    "payable" => false,
+    "outputs" => [%{"type" => "address", "name" => ""}],
+    "name" => "getPayoutByMining",
+    "inputs" => [%{"type" => "address", "name" => ""}],
+    "constant" => true
+  }
+
+  @is_validator_abi %{
+    "type" => "function",
+    "stateMutability" => "view",
+    "payable" => false,
+    "outputs" => [%{"type" => "bool", "name" => ""}],
+    "name" => "isValidator",
+    "inputs" => [%{"type" => "address", "name" => ""}],
+    "constant" => true
+  }
+
+  @empty_address "0x0000000000000000000000000000000000000000"
+
   @typedoc """
   The validation reward given related to a block.
 
@@ -114,6 +138,83 @@ defmodule Explorer.Chain.Block.Reward do
     end
   end
 
+  defp is_validator(mining_key) do
+    validators_contract_address =
+      Application.get_env(:explorer, Explorer.Chain.Block.Reward, %{})[:validators_contract_address]
+
+    if validators_contract_address do
+      is_validator_params = %{"isValidator" => [mining_key.bytes]}
+
+      call_contract(validators_contract_address, @is_validator_abi, is_validator_params)
+    else
+      nil
+    end
+  end
+
+  def get_validator_payout_key_by_mining(mining_key) do
+    is_validator = is_validator(mining_key)
+
+    if is_validator do
+      keys_manager_contract_address =
+        Application.get_env(:explorer, Explorer.Chain.Block.Reward, %{})[:keys_manager_contract_address]
+
+      if keys_manager_contract_address do
+        payout_key =
+          if keys_manager_contract_address do
+            get_payout_by_mining_params = %{"getPayoutByMining" => [mining_key.bytes]}
+
+            payout_key_hash =
+              call_contract(keys_manager_contract_address, @get_payout_by_mining_abi, get_payout_by_mining_params)
+
+            if payout_key_hash == @empty_address do
+              mining_key
+            else
+              {:ok, payout_key} = Chain.string_to_address_hash(payout_key_hash)
+              payout_key
+            end
+          else
+            mining_key
+          end
+
+        %{is_validator: is_validator, payout_key: payout_key}
+      else
+        %{is_validator: is_validator, payout_key: mining_key}
+      end
+    else
+      %{is_validator: is_validator, payout_key: mining_key}
+    end
+  end
+
+  defp call_contract(address, abi, params) do
+    abi = [abi]
+
+    method_name =
+      params
+      |> Enum.map(fn {key, _value} -> key end)
+      |> List.first()
+
+    value =
+      case Reader.query_contract(address, abi, params) do
+        %{^method_name => {:ok, [result]}} -> result
+        _ -> @empty_address
+      end
+
+    type =
+      abi
+      |> Enum.at(0)
+      |> Map.get("outputs", [])
+      |> Enum.at(0)
+      |> Map.get("type", "")
+
+    case type do
+      "address" ->
+        "0x" <> Base.encode16(value, case: :lower)
+
+      _ ->
+        value
+    end
+  end
+
   defp join_associations(query) do
     query
     |> preload(:address)

apps/explorer/lib/explorer/chain/transaction.ex

@@ -501,6 +501,10 @@ defmodule Explorer.Chain.Transaction do
     ]
   end
 
+  def not_pending_transactions(query) do
+    where(query, [t], not is_nil(t.block_number))
+  end
+
   @collated_fields ~w(block_number cumulative_gas_used gas_used index)a
 
   @collated_message "can't be blank when the transaction is collated into a block"

apps/explorer/priv/repo/migrations/20200424070607_drop_block_rewards_address_hash_address_type_block_hash_index.exs

@@ -0,0 +1,11 @@
+defmodule Explorer.Repo.Migrations.DropBlockRewardsAddressHashAddressTypeBlockHashIndex do
+  use Ecto.Migration
+
+  def change do
+    drop_if_exists(
+      index(:internal_transactions, [:address_hash, :block_hash, :address_type],
+        name: "block_rewards_address_hash_address_type_block_hash_index"
+      )
+    )
+  end
+end

apps/explorer/test/explorer/chain_test.exs

@@ -383,13 +383,13 @@ defmodule Explorer.ChainTest do
     end
   end
 
-  describe "address_to_transactions_with_rewards/2" do
+  describe "address_to_mined_transactions_with_rewards/2" do
     test "without transactions" do
       %Address{hash: address_hash} = insert(:address)
 
       assert Repo.aggregate(Transaction, :count, :hash) == 0
 
-      assert [] == Chain.address_to_transactions_with_rewards(address_hash)
+      assert [] == Chain.address_to_mined_transactions_with_rewards(address_hash)
     end
 
     test "with from transactions" do
@@ -401,7 +401,7 @@ defmodule Explorer.ChainTest do
         |> with_block()
 
       assert [transaction] ==
-               Chain.address_to_transactions_with_rewards(address_hash, direction: :from)
+               Chain.address_to_mined_transactions_with_rewards(address_hash, direction: :from)
                |> Repo.preload([:block, :to_address, :from_address])
     end
 
@@ -414,7 +414,7 @@ defmodule Explorer.ChainTest do
         |> with_block()
 
       assert [transaction] ==
-               Chain.address_to_transactions_with_rewards(address_hash, direction: :to)
+               Chain.address_to_mined_transactions_with_rewards(address_hash, direction: :to)
                |> Repo.preload([:block, :to_address, :from_address])
     end
 
@@ -428,7 +428,7 @@ defmodule Explorer.ChainTest do
 
       # only contains "from" transaction
       assert [transaction] ==
-               Chain.address_to_transactions_with_rewards(address_hash, direction: :from)
+               Chain.address_to_mined_transactions_with_rewards(address_hash, direction: :from)
                |> Repo.preload([:block, :to_address, :from_address])
     end
 
@@ -441,7 +441,7 @@ defmodule Explorer.ChainTest do
         |> with_block()
 
       assert [transaction] ==
-               Chain.address_to_transactions_with_rewards(address_hash, direction: :to)
+               Chain.address_to_mined_transactions_with_rewards(address_hash, direction: :to)
                |> Repo.preload([:block, :to_address, :from_address])
     end
 
@@ -460,7 +460,7 @@ defmodule Explorer.ChainTest do
         |> with_block(block)
 
       assert [transaction2, transaction1] ==
-               Chain.address_to_transactions_with_rewards(address_hash)
+               Chain.address_to_mined_transactions_with_rewards(address_hash)
                |> Repo.preload([:block, :to_address, :from_address])
     end
 
@@ -481,7 +481,7 @@ defmodule Explorer.ChainTest do
           transaction_index: transaction.index
         )
 
-      assert [] == Chain.address_to_transactions_with_rewards(address.hash)
+      assert [] == Chain.address_to_mined_transactions_with_rewards(address.hash)
     end
 
     test "returns transactions that have token transfers for the given to_address" do
@@ -499,7 +499,7 @@ defmodule Explorer.ChainTest do
       )
 
       assert [transaction.hash] ==
-               Chain.address_to_transactions_with_rewards(address_hash)
+               Chain.address_to_mined_transactions_with_rewards(address_hash)
                |> Enum.map(& &1.hash)
     end
 
@@ -519,7 +519,7 @@ defmodule Explorer.ChainTest do
 
       assert second_page_hashes ==
                address_hash
-               |> Chain.address_to_transactions_with_rewards(
+               |> Chain.address_to_mined_transactions_with_rewards(
                  paging_options: %PagingOptions{
                    key: {block_number, index},
                    page_size: 2
@@ -568,7 +568,7 @@ defmodule Explorer.ChainTest do
 
       result =
         address_hash
-        |> Chain.address_to_transactions_with_rewards()
+        |> Chain.address_to_mined_transactions_with_rewards()
         |> Enum.map(& &1.hash)
 
       assert [fourth, third, second, first, sixth, fifth] == result
@@ -577,8 +577,15 @@ defmodule Explorer.ChainTest do
     test "with emission rewards" do
       Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: true)
 
+      Application.put_env(:explorer, Explorer.Chain.Block.Reward,
+        validators_contract_address: "0x0000000000000000000000000000000000000005",
+        keys_manager_contract_address: "0x0000000000000000000000000000000000000006"
+      )
+
       block = insert(:block)
 
+      block_miner_hash_string = Base.encode16(block.miner_hash.bytes, case: :lower)
+
       insert(
         :reward,
         address_hash: block.miner_hash,
@@ -593,16 +600,51 @@ defmodule Explorer.ChainTest do
         address_type: :emission_funds
       )
 
-      assert [{_, _}] = Chain.address_to_transactions_with_rewards(block.miner.hash)
+      # isValidator => true
+      expect(
+        EthereumJSONRPC.Mox,
+        :json_rpc,
+        fn [%{id: id, method: _, params: [%{data: _, to: _}, _]}], _options ->
+          {:ok,
+           [%{id: id, jsonrpc: "2.0", result: "0x0000000000000000000000000000000000000000000000000000000000000001"}]}
+        end
+      )
 
-      Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: false)
+      # getPayoutByMining => 0x0000000000000000000000000000000000000001
+      expect(
+        EthereumJSONRPC.Mox,
+        :json_rpc,
+        fn [%{id: id, method: _, params: [%{data: _, to: _}, _]}], _options ->
+          {:ok, [%{id: id, result: "0x000000000000000000000000" <> block_miner_hash_string}]}
+        end
+      )
+
+      res = Chain.address_to_mined_transactions_with_rewards(block.miner.hash)
+
+      assert [{_, _}] = res
+
+      on_exit(fn ->
+        Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: false)
+
+        Application.put_env(:explorer, Explorer.Chain.Block.Reward,
+          validators_contract_address: nil,
+          keys_manager_contract_address: nil
+        )
+      end)
     end
 
     test "with emission rewards and transactions" do
       Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: true)
 
+      Application.put_env(:explorer, Explorer.Chain.Block.Reward,
+        validators_contract_address: "0x0000000000000000000000000000000000000005",
+        keys_manager_contract_address: "0x0000000000000000000000000000000000000006"
+      )
+
       block = insert(:block)
 
+      block_miner_hash_string = Base.encode16(block.miner_hash.bytes, case: :lower)
+
       insert(
         :reward,
         address_hash: block.miner_hash,
@@ -618,13 +660,39 @@ defmodule Explorer.ChainTest do
       )
 
       :transaction
-      |> insert(from_address: block.miner)
+      |> insert(to_address: block.miner)
       |> with_block(block)
       |> Repo.preload(:token_transfers)
 
-      assert [_, {_, _}] = Chain.address_to_transactions_with_rewards(block.miner.hash, direction: :from)
+      # isValidator => true
+      expect(
+        EthereumJSONRPC.Mox,
+        :json_rpc,
+        fn [%{id: id, method: _, params: [%{data: _, to: _}, _]}], _options ->
+          {:ok,
+           [%{id: id, jsonrpc: "2.0", result: "0x0000000000000000000000000000000000000000000000000000000000000001"}]}
+        end
+      )
 
-      Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: false)
+      # getPayoutByMining => 0x0000000000000000000000000000000000000001
+      expect(
+        EthereumJSONRPC.Mox,
+        :json_rpc,
+        fn [%{id: id, method: _, params: [%{data: _, to: _}, _]}], _options ->
+          {:ok, [%{id: id, result: "0x000000000000000000000000" <> block_miner_hash_string}]}
+        end
+      )
+
+      assert [_, {_, _}] = Chain.address_to_mined_transactions_with_rewards(block.miner.hash, direction: :to)
+
+      on_exit(fn ->
+        Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: false)
+
+        Application.put_env(:explorer, Explorer.Chain.Block.Reward,
+          validators_contract_address: nil,
+          keys_manager_contract_address: nil
+        )
+      end)
     end
 
     test "with transactions if rewards are not in the range of blocks" do
@@ -651,7 +719,7 @@ defmodule Explorer.ChainTest do
       |> with_block()
       |> Repo.preload(:token_transfers)
 
-      assert [_] = Chain.address_to_transactions_with_rewards(block.miner.hash, direction: :from)
+      assert [_] = Chain.address_to_mined_transactions_with_rewards(block.miner.hash, direction: :from)
 
       Application.put_env(:block_scout_web, BlockScoutWeb.Chain, has_emission_funds: false)
     end
@@ -675,7 +743,104 @@ defmodule Explorer.ChainTest do
         address_type: :emission_funds
       )
 
-      assert [] == Chain.address_to_transactions_with_rewards(block.miner.hash)
+      assert [] == Chain.address_to_mined_transactions_with_rewards(block.miner.hash)
+    end
+  end
+
+  describe "address_to_transactions_tasks_range_of_blocks/2" do
+    test "returns empty extremums if no transactions" do
+      address = insert(:address)
+
+      extremums = Chain.address_to_transactions_tasks_range_of_blocks(address.hash, [])
+
+      assert extremums == %{
+               :min_block_number => nil,
+               :max_block_number => 0
+             }
+    end
+
+    test "returns correct extremums for from_address" do
+      address = insert(:address)
+
+      :transaction
+      |> insert(from_address: address)
+      |> with_block(insert(:block, number: 1000))
+
+      extremums = Chain.address_to_transactions_tasks_range_of_blocks(address.hash, [])
+
+      assert extremums == %{
+               :min_block_number => 1000,
+               :max_block_number => 1000
+             }
+    end
+
+    test "returns correct extremums for to_address" do
+      address = insert(:address)
+
+      :transaction
+      |> insert(to_address: address)
+      |> with_block(insert(:block, number: 1000))
+
+      extremums = Chain.address_to_transactions_tasks_range_of_blocks(address.hash, [])
+
+      assert extremums == %{
+               :min_block_number => 1000,
+               :max_block_number => 1000
+             }
+    end
+
+    test "returns correct extremums for created_contract_address" do
+      address = insert(:address)
+
+      :transaction
+      |> insert(created_contract_address: address)
+      |> with_block(insert(:block, number: 1000))
+
+      extremums = Chain.address_to_transactions_tasks_range_of_blocks(address.hash, [])
+
+      assert extremums == %{
+               :min_block_number => 1000,
+               :max_block_number => 1000
+             }
+    end
+
+    test "returns correct extremums for multiple number of transactions" do
+      address = insert(:address)
+
+      :transaction
+      |> insert(created_contract_address: address)
+      |> with_block(insert(:block, number: 1000))
+
+      :transaction
+      |> insert(created_contract_address: address)
+      |> with_block(insert(:block, number: 999))
+
+      :transaction
+      |> insert(created_contract_address: address)
+      |> with_block(insert(:block, number: 1003))
+
+      :transaction
+      |> insert(from_address: address)
+      |> with_block(insert(:block, number: 1001))
+
+      :transaction
+      |> insert(from_address: address)
+      |> with_block(insert(:block, number: 1004))
+
+      :transaction
+      |> insert(to_address: address)
+      |> with_block(insert(:block, number: 1002))
+
+      :transaction
+      |> insert(to_address: address)
+      |> with_block(insert(:block, number: 998))
+
+      extremums = Chain.address_to_transactions_tasks_range_of_blocks(address.hash, [])
+
+      assert extremums == %{
+               :min_block_number => 998,
+               :max_block_number => 1004
+             }
     end
   end
 

apps/indexer/lib/indexer/block/fetcher.ex

@@ -10,7 +10,9 @@ defmodule Indexer.Block.Fetcher do
   import EthereumJSONRPC, only: [quantity_to_integer: 1]
 
   alias EthereumJSONRPC.{Blocks, FetchedBeneficiaries}
+  alias Explorer.Chain
   alias Explorer.Chain.{Address, Block, Hash, Import, Transaction}
+  alias Explorer.Chain.Block.Reward
   alias Explorer.Chain.Cache.Blocks, as: BlocksCache
   alias Explorer.Chain.Cache.{Accounts, BlockNumber, PendingTransactions, Transactions, Uncles}
   alias Indexer.Block.Fetcher.Receipts
@@ -153,7 +155,7 @@ defmodule Indexer.Block.Fetcher do
            |> AddressCoinBalances.params_set(),
          beneficiaries_with_gas_payment <-
            beneficiary_params_set
-           |> add_gas_payments(transactions_with_receipts)
+           |> add_gas_payments(transactions_with_receipts, blocks)
            |> BlockReward.reduce_uncle_rewards(),
          address_token_balances = AddressTokenBalances.params_set(%{token_transfers_params: token_transfers}),
          {:ok, inserted} <-
@@ -396,18 +398,22 @@ defmodule Indexer.Block.Fetcher do
     |> Enum.into(MapSet.new())
   end
 
-  defp add_gas_payments(beneficiaries, transactions) do
+  defp add_gas_payments(beneficiaries, transactions, blocks) do
     transactions_by_block_number = Enum.group_by(transactions, & &1.block_number)
 
     Enum.map(beneficiaries, fn beneficiary ->
       case beneficiary.address_type do
         :validator ->
-          gas_payment = gas_payment(beneficiary, transactions_by_block_number)
+          block_hash = beneficiary.block_hash
 
-          "0x" <> minted_hex = beneficiary.reward
-          {minted, _} = Integer.parse(minted_hex, 16)
+          block = find_block(blocks, block_hash)
 
-          %{beneficiary | reward: minted + gas_payment}
+          block_miner_hash = block.miner_hash
+
+          {:ok, block_miner} = Chain.string_to_address_hash(block_miner_hash)
+          %{payout_key: block_miner_payout_address} = Reward.get_validator_payout_key_by_mining(block_miner)
+
+          reward_with_gas(block_miner_payout_address, beneficiary, transactions_by_block_number)
 
         _ ->
           beneficiary
@@ -415,6 +421,27 @@ defmodule Indexer.Block.Fetcher do
     end)
   end
 
+  defp reward_with_gas(block_miner_payout_address, beneficiary, transactions_by_block_number) do
+    {:ok, beneficiary_address} = Chain.string_to_address_hash(beneficiary.address_hash)
+
+    "0x" <> minted_hex = beneficiary.reward
+    {minted, _} = Integer.parse(minted_hex, 16)
+
+    if block_miner_payout_address && beneficiary_address.bytes == block_miner_payout_address.bytes do
+      gas_payment = gas_payment(beneficiary, transactions_by_block_number)
+
+      %{beneficiary | reward: minted + gas_payment}
+    else
+      %{beneficiary | reward: minted}
+    end
+  end
+
+  defp find_block(blocks, block_hash) do
+    blocks
+    |> Enum.filter(fn block -> block.hash == block_hash end)
+    |> Enum.at(0)
+  end
+
   defp gas_payment(transactions) when is_list(transactions) do
     transactions
     |> Stream.map(&(&1.gas_used * &1.gas_price))