Merge branch 'master' into sa-log-rotation

apps/block_scout_web/assets/js/lib/market_history_chart.js

@@ -75,7 +75,11 @@ function getPriceData (marketHistoryData) {
 }
 
 function getMarketCapData (marketHistoryData, availableSupply) {
-  return marketHistoryData.map(({ date, closingPrice }) => ({x: date, y: closingPrice * availableSupply}))
+  if (availableSupply !== null && typeof availableSupply === 'object') {
+    return marketHistoryData.map(({ date, closingPrice }) => ({x: date, y: closingPrice * availableSupply[date]}))
+  } else {
+    return marketHistoryData.map(({ date, closingPrice }) => ({x: date, y: closingPrice * availableSupply}))
+  }
 }
 
 class MarketHistoryChart {
@@ -100,18 +104,25 @@ class MarketHistoryChart {
       borderColor: sassVariables.secondary,
       lineTension: 0
     }
+    this.availableSupply = availableSupply
     config.data.datasets = [this.price, this.marketCap]
     this.chart = new Chart(el, config)
   }
   update (availableSupply, marketHistoryData) {
     this.price.data = getPriceData(marketHistoryData)
-    this.marketCap.data = getMarketCapData(marketHistoryData, availableSupply)
+    if (this.availableSupply !== null && typeof this.availableSupply === 'object') {
+      const today = new Date().toJSON().slice(0, 10)
+      this.availableSupply[today] = availableSupply
+      this.marketCap.data = getMarketCapData(marketHistoryData, this.availableSupply)
+    } else {
+      this.marketCap.data = getMarketCapData(marketHistoryData, availableSupply)
+    }
     this.chart.update()
   }
 }
 
 export function createMarketHistoryChart (ctx) {
-  const availableSupply = ctx.dataset.available_supply
+  const availableSupply = JSON.parse(ctx.dataset.available_supply)
   const marketHistoryData = humps.camelizeKeys(JSON.parse(ctx.dataset.market_history_data))
 
   return new MarketHistoryChart(ctx, availableSupply, marketHistoryData)

apps/block_scout_web/lib/block_scout_web/controllers/chain_controller.ex

@@ -40,6 +40,7 @@ defmodule BlockScoutWeb.ChainController do
       average_block_time: Chain.average_block_time(),
       blocks: blocks,
       exchange_rate: exchange_rate,
+      available_supply: available_supply(Chain.supply_for_days(30), exchange_rate),
       market_history_data: market_history_data,
       transaction_estimated_count: transaction_estimated_count,
       transactions: transactions
@@ -78,4 +79,17 @@ defmodule BlockScoutWeb.ChainController do
         )
     )
   end
+
+  defp available_supply(:ok, exchange_rate) do
+    to_string(exchange_rate.available_supply || 0)
+  end
+
+  defp available_supply({:ok, supply_for_days}, _exchange_rate) do
+    supply_for_days
+    |> Jason.encode()
+    |> case do
+      {:ok, data} -> data
+      _ -> []
+    end
+  end
 end

apps/block_scout_web/lib/block_scout_web/templates/chain/show.html.eex

@@ -3,7 +3,7 @@
   <div class="container">
     <div class="dashboard-banner">
       <div class="dashboard-banner-chart">
-        <canvas data-chart="marketHistoryChart" data-available_supply='<%= @exchange_rate.available_supply %>' data-market_history_data='<%=raw encode_market_history_data(@market_history_data) %>' width="350" height="152"></canvas>
+        <canvas data-chart="marketHistoryChart" data-available_supply='<%=raw @available_supply %>' data-market_history_data='<%=raw encode_market_history_data(@market_history_data) %>' width="350" height="152"></canvas>
       </div>
       <div class="dashboard-banner-chart-legend">
         <div class="dashboard-banner-chart-legend-item">

apps/block_scout_web/lib/block_scout_web/templates/internal_transaction/_tile.html.eex

@@ -2,6 +2,7 @@
   <div class="row">
     <div class="col-md-2 d-flex flex-row flex-md-column align-items-left justify-content-start justify-content-lg-center mb-1 mb-md-0 pl-md-4">
       <%= gettext("Internal Transaction") %>
+      <span>(<%= type(@internal_transaction) %>)</span>
     </div>
     <div class="col-md-7 col-lg-8 d-flex flex-column text-nowrap pr-2 pr-sm-2 pr-md-0">
       <%= render BlockScoutWeb.TransactionView, "_link.html", transaction_hash: @internal_transaction.transaction_hash %>

apps/block_scout_web/lib/block_scout_web/templates/layout/_topnav.html.eex

@@ -15,7 +15,7 @@
             </span>
             <%= gettext("Blocks") %>
           </a>
-          <div class="dropdown-menu" aria-labelledby="navbarDropdown">
+          <div class="dropdown-menu" aria-labelledby="navbarBlocksDropdown">
             <%= link to: block_path(@conn, :index), class: "dropdown-item" do %>
               <%= gettext("Blocks") %>
             <% end %>
@@ -27,13 +27,26 @@
             <% end %>
           </div>
         </li>
-        <li class="nav-item">
+        <li class="nav-item dropdown">
-          <%= link to: transaction_path(@conn, :index), class: "nav-link topnav-nav-link" do %>
+          <a href="#" role="button" id="navbarTransactionsDropdown" class="nav-link dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
             <span class="nav-link-icon">
               <%= render BlockScoutWeb.IconsView, "_transaction_icon.html" %>
             </span>
             <%= gettext("Transactions") %>
-          <% end %>
+          </a>
+          <div class="dropdown-menu" aria-labeledby="navbarTransactionsDropdown">
+            <%= link(
+                  gettext("Validated"),
+                  class: "dropdown-item",
+                  to: transaction_path(@conn, :index)
+                ) %>
+            <%= link(
+                  gettext("Pending"),
+                  class: "dropdown-item",
+                  "data-test": "pending_transactions_link",
+                  to: pending_transaction_path(@conn, :index)
+                ) %>
+          </div>
         </li>
         <li class="nav-item">
           <%= link to: address_path(@conn, :index), class: "nav-link topnav-nav-link" do %>

apps/block_scout_web/lib/block_scout_web/templates/pending_transaction/index.html.eex

@@ -1,48 +1,14 @@
 <section class="container" data-page="transaction-pending-list">
   <div class="card">
-    <div class="card-header">
+    <div class="card-body">
-
-      <!-- DESKTOP TAB NAV -->
-      <ul class="nav nav-tabs card-header-tabs d-none d-md-inline-flex">
-        <li class="nav-item">
-          <%= link(
-                gettext("Validated"),
-                class: "nav-link",
-                to: transaction_path(@conn, :index)
-              ) %>
-        </li>
-        <li class="nav-item">
-          <%= link(
-                gettext("Pending"),
-                class: "nav-link active",
-                "data-test": "pending_transactions_link",
-                to: pending_transaction_path(@conn, :index)
-              ) %>
-        </li>
-      </ul>
 
-      <!-- MOBILE DROPDOWN NAV -->
+      <h1><%= gettext "Pending Transactions" %></h1>
-      <ul class="nav nav-tabs card-header-tabs d-lg-none">
+      <p>
-        <li class="nav-item dropdown flex-fill text-center">
+        <%= gettext("Showing") %>
-          <a class="nav-link active dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"><%= gettext("Pending") %></a>
+        <span data-selector="transaction-pending-count"><%= Cldr.Number.to_string!(@pending_transaction_count, format: "#,###") %></span>
-          <div class="dropdown-menu">
+        <%= gettext("Pending Transactions") %>
-            <%= link(
+      </p>
-                  gettext("Validated"),
-                  class: "dropdown-item",
-                  to: transaction_path(@conn, :index)
-                ) %>
-            <%= link(
-                  gettext("Pending"),
-                  class: "dropdown-item active",
-                  "data-test": "pending_transactions_link",
-                  to: pending_transaction_path(@conn, :index)
-                ) %>
-          </div>
-        </li>
-      </ul>
-    </div>
 
-    <div class="card-body">
       <div data-selector="channel-batching-message" style="display:none;">
         <div data-selector="reload-button" class="alert alert-info">
           <a href="#" class="alert-link"><span data-selector="channel-batching-count"></span> <%= gettext "More transactions have come in" %></a>
@@ -53,12 +19,7 @@
           <a href="#" class="alert-link"><%= gettext "Connection Lost, click to load newer transactions" %></a>
         </div>
       </div>
-      <h2 class="card-title mb-0"><%= gettext "Transactions" %></h2>
+
-      <p>
-        <%= gettext("Showing") %>
-        <span data-selector="transaction-pending-count"><%= Cldr.Number.to_string!(@pending_transaction_count, format: "#,###") %></span>
-        <%= gettext("Pending Transactions") %>
-      </p>
       <span data-selector="transactions-pending-list">
         <%= for transaction <- @transactions do %>
           <%= render BlockScoutWeb.TransactionView, "_tile.html", transaction: transaction %>

apps/block_scout_web/lib/block_scout_web/templates/transaction/index.html.eex

@@ -1,48 +1,14 @@
 <section class="container" data-page="transaction-list">
   <div class="card">
-    <div class="card-header">
+    <div class="card-body">
-
-      <!-- DESKTOP TAB NAV -->
-      <ul class="nav nav-tabs card-header-tabs d-none d-lg-inline-flex">
-        <li class="nav-item">
-          <%= link(
-                gettext("Validated"),
-                class: "nav-link active",
-                to: transaction_path(@conn, :index)
-              ) %>
-        </li>
-        <li class="nav-item">
-          <%= link(
-                gettext("Pending"),
-                class: "nav-link",
-                "data-test": "pending_transactions_link",
-                to: pending_transaction_path(@conn, :index)
-              ) %>
-        </li>
-      </ul>
 
-      <!-- MOBILE DROPDOWN NAV -->
+      <h1><%= gettext "Validated Transactions" %></h1>
-      <ul class="nav nav-tabs card-header-tabs d-lg-none">
+      <p>
-        <li class="nav-item dropdown flex-fill text-center">
+        <%= gettext("Showing") %>
-          <a class="nav-link active dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false"><%= gettext("Validated") %></a>
+        <span data-selector="transaction-count"><%= Cldr.Number.to_string!(@transaction_estimated_count, format: "#,###") %></span>
-          <div class="dropdown-menu">
+        <%= gettext("Validated Transactions") %>
-            <%= link(
+      </p>
-                  gettext("Validated"),
-                  class: "dropdown-item active",
-                  to: transaction_path(@conn, :index)
-                ) %>
-            <%= link(
-                  gettext("Pending"),
-                  class: "dropdown-item",
-                  "data-test": "pending_transactions_link",
-                  to: pending_transaction_path(@conn, :index)
-                ) %>
-          </div>
-        </li>
-      </ul>
-    </div>
 
-    <div class="card-body">
       <div data-selector="channel-batching-message" class="d-none">
         <div data-selector="reload-button" class="alert alert-info">
           <a href="#" class="alert-link"><span data-selector="channel-batching-count"></span> <%= gettext "More transactions have come in" %></a>
@@ -53,12 +19,7 @@
           <a href="#" class="alert-link"><%= gettext "Connection Lost, click to load newer transactions" %></a>
         </div>
       </div>
-      <h1><%= gettext "Transactions" %></h1>
+      
-      <p>
-        <%= gettext("Showing") %>
-        <span data-selector="transaction-count"><%= Cldr.Number.to_string!(@transaction_estimated_count, format: "#,###") %></span>
-        <%= gettext("Validated Transactions") %>
-      </p>
       <span data-selector="transactions-list">
         <%= for transaction <- @transactions do %>
           <%= render BlockScoutWeb.TransactionView, "_tile.html", transaction: transaction %>

apps/block_scout_web/lib/block_scout_web/views/internal_transaction_view.ex

@@ -1,3 +1,34 @@
 defmodule BlockScoutWeb.InternalTransactionView do
   use BlockScoutWeb, :view
+
+  alias Explorer.Chain.InternalTransaction
+
+  import BlockScoutWeb.Gettext
+
+  @doc """
+  Returns the formatted string for the type of the internal transaction.
+
+  When the type is `call`, we return the formatted string for the call type.
+
+  Examples:
+
+  iex> BlockScoutWeb.InternalTransactionView.type(%Explorer.Chain.InternalTransaction{type: :reward})
+  "Reward"
+
+  iex> BlockScoutWeb.InternalTransactionView.type(%Explorer.Chain.InternalTransaction{type: :call, call_type: :delegatecall})
+  "Delegate Call"
+  """
+  def type(%InternalTransaction{type: :call, call_type: call_type}) do
+    formatted_type(call_type)
+  end
+
+  def type(%InternalTransaction{type: type}) do
+    formatted_type(type)
+  end
+
+  defp formatted_type(:call), do: gettext("Call")
+  defp formatted_type(:delegatecall), do: gettext("Delegate Call")
+  defp formatted_type(:create), do: gettext("Create")
+  defp formatted_type(:suicide), do: gettext("Suicide")
+  defp formatted_type(:reward), do: gettext("Reward")
 end

apps/block_scout_web/priv/gettext/default.pot

@@ -84,7 +84,7 @@ msgid "A string with the name of the module to be invoked."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:51
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:64
 msgid "API"
 msgstr ""
 
@@ -99,7 +99,7 @@ msgid "API for the %{subnetwork} - BlockScout"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:43
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:56
 msgid "Accounts"
 msgstr ""
 
@@ -144,7 +144,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/block/_link.html.eex:2
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:21
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:22
 #: lib/block_scout_web/templates/tokens/transfer/_token_transfer.html.eex:44
 msgid "Block #%{number}"
 msgstr ""
@@ -258,8 +258,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:14
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:53
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:19
-#: lib/block_scout_web/templates/transaction/index.html.eex:53
+#: lib/block_scout_web/templates/transaction/index.html.eex:19
 msgid "Connection Lost, click to load newer transactions"
 msgstr ""
 
@@ -404,7 +404,7 @@ msgid "Error: (Awaiting internal transactions for reason)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:15
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:16
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:19
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:26
 #: lib/block_scout_web/templates/transaction/overview.html.eex:98
@@ -484,7 +484,7 @@ msgid "Hide"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:31
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:32
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:46
 msgid "IN"
 msgstr ""
@@ -579,8 +579,8 @@ msgid "More internal transactions have come in"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:48
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:14
-#: lib/block_scout_web/templates/transaction/index.html.eex:48
+#: lib/block_scout_web/templates/transaction/index.html.eex:14
 msgid "More transactions have come in"
 msgstr ""
 
@@ -631,7 +631,7 @@ msgid "Nonce"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:29
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:30
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:42
 msgid "OUT"
 msgstr ""
@@ -642,9 +642,9 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:117
 #: lib/block_scout_web/templates/block/index.html.eex:20
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:50
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:70
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:31
 #: lib/block_scout_web/templates/tokens/transfer/index.html.eex:34
-#: lib/block_scout_web/templates/transaction/index.html.eex:70
+#: lib/block_scout_web/templates/transaction/index.html.eex:31
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:24
 msgid "Older"
 msgstr ""
@@ -660,12 +660,12 @@ msgid "Owner Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:82
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:95
 msgid "POA Core"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:81
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:94
 msgid "POA Sokol"
 msgstr ""
 
@@ -685,11 +685,7 @@ msgid "Parent Hash"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:16
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:44
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:27
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:35
-#: lib/block_scout_web/templates/transaction/index.html.eex:16
-#: lib/block_scout_web/templates/transaction/index.html.eex:35
 #: lib/block_scout_web/templates/transaction/overview.html.eex:54
 #: lib/block_scout_web/views/transaction_view.ex:57
 #: lib/block_scout_web/views/transaction_view.ex:83
@@ -698,7 +694,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:60
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:60
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:5
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:9
 msgid "Pending Transactions"
 msgstr ""
 
@@ -760,13 +757,13 @@ msgid "Responses"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:58
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:65
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:78
 msgid "Search"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:58
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
 msgid "Search by address, transaction hash, or block number"
 msgstr ""
 
@@ -792,8 +789,8 @@ msgid "Show QR Code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:58
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:7
-#: lib/block_scout_web/templates/transaction/index.html.eex:58
+#: lib/block_scout_web/templates/transaction/index.html.eex:7
 msgid "Showing"
 msgstr ""
 
@@ -1004,8 +1001,6 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:71
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:56
-#: lib/block_scout_web/templates/transaction/index.html.eex:56
 #: lib/block_scout_web/views/address_view.ex:208
 msgid "Transactions"
 msgstr ""
@@ -1048,16 +1043,13 @@ msgid "Used"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:9
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:39
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:30
-#: lib/block_scout_web/templates/transaction/index.html.eex:9
-#: lib/block_scout_web/templates/transaction/index.html.eex:27
-#: lib/block_scout_web/templates/transaction/index.html.eex:30
 msgid "Validated"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/index.html.eex:60
+#: lib/block_scout_web/templates/transaction/index.html.eex:5
+#: lib/block_scout_web/templates/transaction/index.html.eex:9
 msgid "Validated Transactions"
 msgstr ""
 
@@ -1194,3 +1186,28 @@ msgstr ""
 #: lib/block_scout_web/views/address_contract_view.ex:15
 msgid "true"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:29
+msgid "Call"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:31
+msgid "Create"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:30
+msgid "Delegate Call"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:33
+msgid "Reward"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:32
+msgid "Suicide"
+msgstr ""

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

@@ -84,7 +84,7 @@ msgid "A string with the name of the module to be invoked."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:51
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:64
 msgid "API"
 msgstr ""
 
@@ -99,7 +99,7 @@ msgid "API for the %{subnetwork} - BlockScout"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:43
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:56
 msgid "Accounts"
 msgstr ""
 
@@ -144,7 +144,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/block/_link.html.eex:2
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:21
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:22
 #: lib/block_scout_web/templates/tokens/transfer/_token_transfer.html.eex:44
 msgid "Block #%{number}"
 msgstr ""
@@ -258,8 +258,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:14
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:53
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:19
-#: lib/block_scout_web/templates/transaction/index.html.eex:53
+#: lib/block_scout_web/templates/transaction/index.html.eex:19
 msgid "Connection Lost, click to load newer transactions"
 msgstr ""
 
@@ -404,7 +404,7 @@ msgid "Error: (Awaiting internal transactions for reason)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:15
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:16
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:19
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:26
 #: lib/block_scout_web/templates/transaction/overview.html.eex:98
@@ -484,7 +484,7 @@ msgid "Hide"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:31
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:32
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:46
 msgid "IN"
 msgstr ""
@@ -579,8 +579,8 @@ msgid "More internal transactions have come in"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:48
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:14
-#: lib/block_scout_web/templates/transaction/index.html.eex:48
+#: lib/block_scout_web/templates/transaction/index.html.eex:14
 msgid "More transactions have come in"
 msgstr ""
 
@@ -631,7 +631,7 @@ msgid "Nonce"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:29
+#: lib/block_scout_web/templates/internal_transaction/_tile.html.eex:30
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:42
 msgid "OUT"
 msgstr ""
@@ -642,9 +642,9 @@ msgstr ""
 #: lib/block_scout_web/templates/address_validation/index.html.eex:117
 #: lib/block_scout_web/templates/block/index.html.eex:20
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:50
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:70
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:31
 #: lib/block_scout_web/templates/tokens/transfer/index.html.eex:34
-#: lib/block_scout_web/templates/transaction/index.html.eex:70
+#: lib/block_scout_web/templates/transaction/index.html.eex:31
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:24
 msgid "Older"
 msgstr ""
@@ -660,12 +660,12 @@ msgid "Owner Address"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:82
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:95
 msgid "POA Core"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:81
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:94
 msgid "POA Sokol"
 msgstr ""
 
@@ -685,11 +685,7 @@ msgid "Parent Hash"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:16
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:44
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:27
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:35
-#: lib/block_scout_web/templates/transaction/index.html.eex:16
-#: lib/block_scout_web/templates/transaction/index.html.eex:35
 #: lib/block_scout_web/templates/transaction/overview.html.eex:54
 #: lib/block_scout_web/views/transaction_view.ex:57
 #: lib/block_scout_web/views/transaction_view.ex:83
@@ -698,7 +694,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/address_transaction/index.html.eex:60
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:60
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:5
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:9
 msgid "Pending Transactions"
 msgstr ""
 
@@ -760,13 +757,13 @@ msgid "Responses"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:58
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:65
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:78
 msgid "Search"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/_topnav.html.eex:58
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:71
 msgid "Search by address, transaction hash, or block number"
 msgstr ""
 
@@ -792,8 +789,8 @@ msgid "Show QR Code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:58
+#: lib/block_scout_web/templates/pending_transaction/index.html.eex:7
-#: lib/block_scout_web/templates/transaction/index.html.eex:58
+#: lib/block_scout_web/templates/transaction/index.html.eex:7
 msgid "Showing"
 msgstr ""
 
@@ -1004,8 +1001,6 @@ msgstr ""
 #: lib/block_scout_web/templates/block_transaction/index.html.eex:35
 #: lib/block_scout_web/templates/chain/show.html.eex:71
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:35
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:56
-#: lib/block_scout_web/templates/transaction/index.html.eex:56
 #: lib/block_scout_web/views/address_view.ex:208
 msgid "Transactions"
 msgstr ""
@@ -1048,16 +1043,13 @@ msgid "Used"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:9
+#: lib/block_scout_web/templates/layout/_topnav.html.eex:39
-#: lib/block_scout_web/templates/pending_transaction/index.html.eex:30
-#: lib/block_scout_web/templates/transaction/index.html.eex:9
-#: lib/block_scout_web/templates/transaction/index.html.eex:27
-#: lib/block_scout_web/templates/transaction/index.html.eex:30
 msgid "Validated"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/index.html.eex:60
+#: lib/block_scout_web/templates/transaction/index.html.eex:5
+#: lib/block_scout_web/templates/transaction/index.html.eex:9
 msgid "Validated Transactions"
 msgstr ""
 
@@ -1194,3 +1186,28 @@ msgstr ""
 #: lib/block_scout_web/views/address_contract_view.ex:15
 msgid "true"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:29
+msgid "Call"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:31
+msgid "Create"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:30
+msgid "Delegate Call"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:33
+msgid "Reward"
+msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/views/internal_transaction_view.ex:32
+msgid "Suicide"
+msgstr ""

apps/block_scout_web/test/block_scout_web/features/pages/transaction_list_page.ex

@@ -11,10 +11,6 @@ defmodule BlockScoutWeb.TransactionListPage do
     click(session, css("[data-transaction-hash='#{transaction_hash}'] [data-test='transaction_hash_link']"))
   end
 
-  def click_pending(session) do
-    click(session, css("[data-test='pending_transactions_link']"))
-  end
-
   def contract_creation(%Transaction{hash: hash}) do
     css("[data-transaction-hash='#{hash}'] [data-test='transaction_type']", text: "Contract Creation")
   end
@@ -30,4 +26,8 @@ defmodule BlockScoutWeb.TransactionListPage do
   def visit_page(session) do
     visit(session, "/txs")
   end
+
+  def visit_pending_transactions_page(session) do
+    visit(session, "/pending_transactions")
+  end
 end

apps/block_scout_web/test/block_scout_web/features/viewing_transactions_test.exs

@@ -74,10 +74,13 @@ defmodule BlockScoutWeb.ViewingTransactionsTest do
       |> refute_has(TransactionListPage.transaction(pending))
     end
 
-    test "viewing the pending tab", %{pending: pending, pending_contract: pending_contract, session: session} do
+    test "viewing the pending tranasctions list", %{
+      pending: pending,
+      pending_contract: pending_contract,
+      session: session
+    } do
       session
-      |> TransactionListPage.visit_page()
+      |> TransactionListPage.visit_pending_transactions_page()
-      |> TransactionListPage.click_pending()
       |> assert_has(TransactionListPage.transaction(pending))
       |> assert_has(TransactionListPage.transaction(pending_contract))
       |> assert_has(TransactionListPage.transaction_status(pending_contract))

apps/block_scout_web/test/block_scout_web/views/internal_transaction_view_test.exs

@@ -0,0 +1,40 @@
+defmodule BlockScoutWeb.InternalTransactionViewTest do
+  use BlockScoutWeb.ConnCase, async: true
+
+  alias BlockScoutWeb.InternalTransactionView
+  alias Explorer.Chain.InternalTransaction
+
+  doctest BlockScoutWeb.InternalTransactionView
+
+  describe "type/1" do
+    test "returns the correct string when the type is :call and call type is :call" do
+      internal_transaction = %InternalTransaction{type: :call, call_type: :call}
+
+      assert InternalTransactionView.type(internal_transaction) == "Call"
+    end
+
+    test "returns the correct string when the type is :call and call type is :delegate_call" do
+      internal_transaction = %InternalTransaction{type: :call, call_type: :delegatecall}
+
+      assert InternalTransactionView.type(internal_transaction) == "Delegate Call"
+    end
+
+    test "returns the correct string when the type is :create" do
+      internal_transaction = %InternalTransaction{type: :create}
+
+      assert InternalTransactionView.type(internal_transaction) == "Create"
+    end
+
+    test "returns the correct string when the type is :suicide" do
+      internal_transaction = %InternalTransaction{type: :suicide}
+
+      assert InternalTransactionView.type(internal_transaction) == "Suicide"
+    end
+
+    test "returns the correct string when the type is :reward" do
+      internal_transaction = %InternalTransaction{type: :reward}
+
+      assert InternalTransactionView.type(internal_transaction) == "Reward"
+    end
+  end
+end

apps/explorer/config/config.exs

@@ -28,6 +28,14 @@ config :explorer, Explorer.Counters.TokenTransferCounter, enabled: true
 
 config :explorer, Explorer.Counters.TokenHoldersCounter, enabled: true, enable_consolidation: true
 
+if System.get_env("SUPPLY_MODULE") == "TransactionAndLog" do
+  config :explorer, supply: Explorer.Chain.Supply.TransactionAndLog
+end
+
+if System.get_env("SOURCE_MODULE") == "TransactionAndLog" do
+  config :explorer, Explorer.ExchangeRates, source: Explorer.ExchangeRates.Source.TransactionAndLog
+end
+
 config :explorer,
   solc_bin_api_url: "https://solc-bin.ethereum.org"
 

apps/explorer/config/test.exs

@@ -27,6 +27,9 @@ if File.exists?(file = "test.secret.exs") do
   import_config file
 end
 
+config :explorer, Explorer.ExchangeRates.Source.TransactionAndLog,
+  secondary_source: Explorer.ExchangeRates.Source.OneCoinSource
+
 variant =
   if is_nil(System.get_env("ETHEREUM_JSONRPC_VARIANT")) do
     "parity"

apps/explorer/lib/explorer/chain.ex

@@ -1929,6 +1929,11 @@ defmodule Explorer.Chain do
     Application.get_env(:explorer, :supply, Explorer.Chain.Supply.ProofOfAuthority)
   end
 
+  @doc """
+  Calls supply_for_days from the configured supply_module
+  """
+  def supply_for_days(days_count), do: supply_module().supply_for_days(days_count)
+
   @doc """
   Streams a lists token contract addresses that haven't been cataloged.
   """

apps/explorer/lib/explorer/chain/supply.ex

@@ -9,10 +9,24 @@ defmodule Explorer.Chain.Supply do
   @doc """
   The current total number of coins minted minus verifiably burned coins.
   """
-  @callback total :: non_neg_integer()
+  @callback total :: non_neg_integer() | %Decimal{sign: 1}
 
   @doc """
   The current number coins in the market for trading.
   """
-  @callback circulating :: non_neg_integer()
+  @callback circulating :: non_neg_integer() | %Decimal{sign: 1}
+
+  @doc """
+  A map of total supplies per day, optional.
+  """
+  @callback supply_for_days(days_count :: integer) :: {:ok, term} | {:error, term} | :ok
+
+  defmacro __using__(_opts) do
+    quote do
+      @behaviour Explorer.Chain.Supply
+      def supply_for_days(_days_count), do: :ok
+
+      defoverridable supply_for_days: 1
+    end
+  end
 end

apps/explorer/lib/explorer/chain/supply/proof_of_authority.ex

@@ -12,11 +12,9 @@ defmodule Explorer.Chain.Supply.ProofOfAuthority do
   See https://github.com/poanetwork/wiki/wiki/POA-Token-Supply for more
   information.
   """
+  use Explorer.Chain.Supply
 
   alias Explorer.Chain
-  alias Explorer.Chain.Supply
-
-  @behaviour Supply
 
   @initial_supply 252_460_800
   @reserved_for_vesting 50_492_160
@@ -31,12 +29,10 @@ defmodule Explorer.Chain.Supply.ProofOfAuthority do
     ~D[2019-12-15] => 0.125
   }
 
-  @impl Supply
   def circulating do
     total() - reserved_supply(Date.utc_today())
   end
 
-  @impl Supply
   def total do
     initial_supply = initial_supply()
     block_height = block_height()

apps/explorer/lib/explorer/chain/supply/transaction_and_log.ex

@@ -0,0 +1,78 @@
+defmodule Explorer.Chain.Supply.TransactionAndLog do
+  @moduledoc """
+  Defines the supply API for calculating the supply for smaller chains with
+  specific mint and burn events
+  """
+  use Explorer.Chain.Supply
+
+  alias Explorer.Chain.{InternalTransaction, Log, Wei}
+  alias Explorer.{Repo, Chain}
+
+  {:ok, base_wei} = Wei.cast(0)
+  @base_wei base_wei
+
+  {:ok, burn_address} = Chain.string_to_address_hash("0x0000000000000000000000000000000000000000")
+
+  @burn_address burn_address
+  @bridge_edge "0x3c798bbcf33115b42c728b8504cff11dd58736e9fa789f1cda2738db7d696b2a"
+
+  import Ecto.Query, only: [from: 2]
+
+  def circulating, do: total(Timex.now())
+
+  def total, do: total(Timex.now())
+
+  @doc false
+  @spec total(DateTime.t()) :: %Decimal{sign: 1}
+  def total(on_date) do
+    on_date
+    |> minted_value
+    |> Wei.sub(burned_value(on_date))
+    |> Wei.to(:ether)
+  end
+
+  def supply_for_days(days_count) when is_integer(days_count) and days_count > 0 do
+    past_days = -(days_count - 1)
+
+    result =
+      for i <- past_days..0, into: %{} do
+        datetime = Timex.shift(Timex.now(), days: i)
+        {DateTime.to_date(datetime), total(datetime)}
+      end
+
+    {:ok, result}
+  end
+
+  defp minted_value(on_date) do
+    query =
+      from(
+        l in Log,
+        join: t in assoc(l, :transaction),
+        join: b in assoc(t, :block),
+        where: b.timestamp <= ^on_date and l.first_topic == @bridge_edge,
+        select: fragment("concat('0x', encode(?, 'hex'))", l.data)
+      )
+
+    query
+    |> Repo.all()
+    |> Enum.reduce(@base_wei, fn data, acc ->
+      {:ok, wei_value} = Wei.cast(data)
+      Wei.sum(wei_value, acc)
+    end)
+  end
+
+  defp burned_value(on_date) do
+    query =
+      from(
+        it in InternalTransaction,
+        join: t in assoc(it, :transaction),
+        join: b in assoc(t, :block),
+        where: b.timestamp <= ^on_date and it.to_address_hash == ^@burn_address,
+        select: it.value
+      )
+
+    query
+    |> Repo.all()
+    |> Enum.reduce(@base_wei, fn data, acc -> Wei.sum(data, acc) end)
+  end
+end

apps/explorer/lib/explorer/chain/wei.ex

@@ -130,6 +130,22 @@ defmodule Explorer.Chain.Wei do
     |> from(:wei)
   end
 
+  @doc """
+  Subtracts two Wei values.
+
+  ## Example
+
+      iex> first = %Explorer.Chain.Wei{value: Decimal.new(1_123)}
+      iex> second = %Explorer.Chain.Wei{value: Decimal.new(1_000)}
+      iex> Explorer.Chain.Wei.sub(first, second)
+      %Explorer.Chain.Wei{value: Decimal.new(123)}
+  """
+  def sub(%Wei{value: wei_1}, %Wei{value: wei_2}) do
+    wei_1
+    |> Decimal.sub(wei_2)
+    |> from(:wei)
+  end
+
   @doc """
   Converts `Decimal` representations of various wei denominations (wei, Gwei, ether) to
   a wei base unit.

apps/explorer/lib/explorer/exchange_rates/source/transaction_and_log.ex

@@ -0,0 +1,50 @@
+defmodule Explorer.ExchangeRates.Source.TransactionAndLog do
+  @moduledoc """
+  Adapter for calculating the market cap and total supply from logs and transactions
+  while still getting other info like price in dollars and bitcoin from a secondary source
+  """
+
+  alias Explorer.ExchangeRates.{Source, Token}
+  alias Explorer.Chain
+
+  @behaviour Source
+
+  @impl Source
+  def fetch_exchange_rates do
+    token_data =
+      secondary_source().fetch_exchange_rates()
+      |> elem(1)
+      |> Enum.find(fn token -> token.symbol == Explorer.coin() end)
+      |> build_struct
+
+    {:ok, [token_data]}
+  end
+
+  defp build_struct(original_token) do
+    %Token{
+      available_supply: to_decimal(Chain.circulating_supply()),
+      btc_value: original_token.btc_value,
+      id: original_token.id,
+      last_updated: original_token.last_updated,
+      market_cap_usd: Decimal.mult(to_decimal(Chain.circulating_supply()), original_token.usd_value),
+      name: original_token.name,
+      symbol: original_token.symbol,
+      usd_value: original_token.usd_value,
+      volume_24h_usd: original_token.volume_24h_usd
+    }
+  end
+
+  defp to_decimal(value) do
+    Decimal.new(value)
+  end
+
+  @spec secondary_source() :: module()
+  defp secondary_source do
+    config(:secondary_source) || Explorer.ExchangeRates.Source.CoinMarketCap
+  end
+
+  @spec config(atom()) :: term
+  defp config(key) do
+    Application.get_env(:explorer, __MODULE__, [])[key]
+  end
+end

apps/explorer/test/explorer/chain/supply/transaction_and_log_test.exs

@@ -0,0 +1,122 @@
+defmodule Explorer.Chain.Supply.TransactionAndLogTest do
+  use Explorer.DataCase
+  alias Explorer.Chain
+  alias Explorer.Chain.Supply.TransactionAndLog
+
+  setup do
+    {:ok, burn_address_hash} = Chain.string_to_address_hash("0x0000000000000000000000000000000000000000")
+
+    burn_address =
+      case Chain.hash_to_address(burn_address_hash) do
+        {:ok, burn_address} -> burn_address
+        {:error, :not_found} -> insert(:address, hash: "0x0000000000000000000000000000000000000000")
+      end
+
+    {:ok, %{burn_address: burn_address}}
+  end
+
+  describe "total/1" do
+    test "today with no mints or burns brings zero" do
+      assert TransactionAndLog.total(Timex.now()) == Decimal.new(0)
+    end
+
+    test "today with mints and burns calculates a value", %{burn_address: burn_address} do
+      old_block = insert(:block, timestamp: Timex.shift(Timex.now(), days: -1), number: 1000)
+
+      insert(:log,
+        transaction:
+          insert(:transaction, block: old_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 2),
+        first_topic: "0x3c798bbcf33115b42c728b8504cff11dd58736e9fa789f1cda2738db7d696b2a",
+        data: "0x0000000000000000000000000000000000000000000000008ac7230489e80000"
+      )
+
+      insert(:internal_transaction,
+        index: 527,
+        transaction:
+          insert(:transaction, block: old_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 3),
+        to_address: burn_address,
+        value: "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000"
+      )
+
+      assert TransactionAndLog.total(Timex.now()) == Decimal.new(9)
+    end
+
+    test "yesterday with mints and burns calculates a value ignoring whatever happened today", %{
+      burn_address: burn_address
+    } do
+      old_block = insert(:block, timestamp: Timex.shift(Timex.now(), days: -1), number: 1000)
+
+      insert(:log,
+        transaction:
+          insert(:transaction, block: old_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 2),
+        first_topic: "0x3c798bbcf33115b42c728b8504cff11dd58736e9fa789f1cda2738db7d696b2a",
+        data: "0x0000000000000000000000000000000000000000000000008ac7230489e80000"
+      )
+
+      new_block = insert(:block, timestamp: Timex.now(), number: 1001)
+
+      insert(:internal_transaction,
+        index: 527,
+        transaction:
+          insert(:transaction, block: new_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 3),
+        to_address: burn_address,
+        value: "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000"
+      )
+
+      assert TransactionAndLog.total(Timex.shift(Timex.now(), days: -1)) == Decimal.new(10)
+    end
+  end
+
+  describe "total/0" do
+    test "calculates the same value as total/1 receiving today's date", %{burn_address: burn_address} do
+      old_block = insert(:block, timestamp: Timex.shift(Timex.now(), days: -1), number: 1000)
+
+      insert(:log,
+        transaction:
+          insert(:transaction, block: old_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 2),
+        first_topic: "0x3c798bbcf33115b42c728b8504cff11dd58736e9fa789f1cda2738db7d696b2a",
+        data: "0x0000000000000000000000000000000000000000000000008ac7230489e80000"
+      )
+
+      insert(:internal_transaction,
+        index: 527,
+        transaction:
+          insert(:transaction, block: old_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 3),
+        to_address: burn_address,
+        value: "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000"
+      )
+
+      assert TransactionAndLog.total() == TransactionAndLog.total(Timex.now())
+    end
+  end
+
+  describe "supply_for_days/1" do
+    test "bring the supply of today and yesterday when receiving 2", %{burn_address: burn_address} do
+      old_block = insert(:block, timestamp: Timex.shift(Timex.now(), days: -1), number: 1000)
+
+      insert(:log,
+        transaction:
+          insert(:transaction, block: old_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 2),
+        first_topic: "0x3c798bbcf33115b42c728b8504cff11dd58736e9fa789f1cda2738db7d696b2a",
+        data: "0x0000000000000000000000000000000000000000000000008ac7230489e80000"
+      )
+
+      new_block = insert(:block, timestamp: Timex.now(), number: 1001)
+
+      insert(:internal_transaction,
+        index: 527,
+        transaction:
+          insert(:transaction, block: new_block, block_number: 1000, cumulative_gas_used: 1, gas_used: 1, index: 3),
+        to_address: burn_address,
+        value: "0x0000000000000000000000000000000000000000000000000de0b6b3a7640000"
+      )
+
+      expected_result = %{
+        Timex.shift(Timex.today(), days: -1) => Decimal.new(10),
+        Timex.today() => Decimal.new(9)
+      }
+
+      assert TransactionAndLog.supply_for_days(2) == {:ok, expected_result}
+    end
+  end
+end

apps/explorer/test/explorer/chain/wei_test.exs

@@ -54,4 +54,50 @@ defmodule Explorer.Chain.WeiTest do
   test "type/0" do
     assert Wei.type() == :decimal
   end
+
+  describe "sum/1" do
+    test "with two positive values return the sum of them" do
+      first = %Explorer.Chain.Wei{value: Decimal.new(123)}
+      second = %Explorer.Chain.Wei{value: Decimal.new(1_000)}
+
+      assert Explorer.Chain.Wei.sum(first, second) == %Explorer.Chain.Wei{value: Decimal.new(1_123)}
+    end
+
+    test "with a positive and a negative value return the positive minus the negative's absolute" do
+      first = %Explorer.Chain.Wei{value: Decimal.new(123)}
+      second = %Explorer.Chain.Wei{value: Decimal.new(-100)}
+
+      assert Explorer.Chain.Wei.sum(first, second) == %Explorer.Chain.Wei{value: Decimal.new(23)}
+    end
+  end
+
+  describe "sub/1" do
+    test "with a negative second parameter return the sum of the absolute values" do
+      first = %Explorer.Chain.Wei{value: Decimal.new(123)}
+      second = %Explorer.Chain.Wei{value: Decimal.new(-100)}
+
+      assert Explorer.Chain.Wei.sub(first, second) == %Explorer.Chain.Wei{value: Decimal.new(223)}
+    end
+
+    test "with a negative first parameter return the negative of the sum of the absolute values" do
+      first = %Explorer.Chain.Wei{value: Decimal.new(-123)}
+      second = %Explorer.Chain.Wei{value: Decimal.new(100)}
+
+      assert Explorer.Chain.Wei.sub(first, second) == %Explorer.Chain.Wei{value: Decimal.new(-223)}
+    end
+
+    test "with a larger first parameter return a positive number" do
+      first = %Explorer.Chain.Wei{value: Decimal.new(123)}
+      second = %Explorer.Chain.Wei{value: Decimal.new(100)}
+
+      assert Explorer.Chain.Wei.sub(first, second) == %Explorer.Chain.Wei{value: Decimal.new(23)}
+    end
+
+    test "with a larger second parameter return a negative number" do
+      first = %Explorer.Chain.Wei{value: Decimal.new(23)}
+      second = %Explorer.Chain.Wei{value: Decimal.new(100)}
+
+      assert Explorer.Chain.Wei.sub(first, second) == %Explorer.Chain.Wei{value: Decimal.new(-77)}
+    end
+  end
 end

apps/explorer/test/explorer/exchange_rates/source/transaction_and_log_test.exs

@@ -0,0 +1,11 @@
+defmodule Explorer.ExchangeRates.Source.TransactionAndLogTest do
+  use Explorer.DataCase
+  alias Explorer.ExchangeRates.Source.TransactionAndLog
+  alias Explorer.ExchangeRates.Token
+
+  describe "fetch_exchange_rates/1" do
+    test "bring a list with one %Token{}" do
+      assert {:ok, [%Token{}]} = TransactionAndLog.fetch_exchange_rates()
+    end
+  end
+end

apps/explorer/test/support/fakes/one_coin_source.ex

@@ -0,0 +1,25 @@
+defmodule Explorer.ExchangeRates.Source.OneCoinSource do
+  @moduledoc false
+
+  alias Explorer.ExchangeRates.Source
+  alias Explorer.ExchangeRates.Token
+
+  @behaviour Source
+
+  @impl Source
+  def fetch_exchange_rates do
+    pseudo_token = %Token{
+      available_supply: Decimal.new(10_000_000),
+      btc_value: Decimal.new(1),
+      id: "",
+      last_updated: Timex.now(),
+      name: "",
+      market_cap_usd: Decimal.new(10_000_000),
+      symbol: Explorer.coin(),
+      usd_value: Decimal.new(1),
+      volume_24h_usd: Decimal.new(1)
+    }
+
+    {:ok, [pseudo_token]}
+  end
+end