Show previous move in message body, which notification is now instant, add check highlighting

config/config.exs

@@ -24,8 +24,8 @@ config :chessh, Web,
   discord_scope: "identify"
 
 config :chessh, DiscordNotifications,
-  game_move_notif_delay_ms: 20 * 1000,
-  game_created_notif_delay_ms: 5 * 1000,
+  game_move_notif_delay_ms: 0,
+  game_created_notif_delay_ms: 15_000,
   reschedule_delay: 3 * 1000
 
 config :joken, default_signer: "secret"

lib/chessh/discord/notifier.ex

@@ -5,6 +5,8 @@ defmodule Chessh.DiscordNotifier do
 
   alias Chessh.{Game, Player, Repo}
 
+  require Logger
+
   def start_link(state \\ []) do
     GenServer.start_link(__MODULE__, state, name: @name)
   end
@@ -60,6 +62,7 @@ defmodule Chessh.DiscordNotifier do
         dark_player: %Player{discord_id: dark_player_discord_id},
         light_player: %Player{discord_id: light_player_discord_id},
         turn: turn,
+        last_move: last_move,
         updated_at: last_updated,
         moves: move_count,
         status: :continue,
@@ -83,7 +86,10 @@ defmodule Chessh.DiscordNotifier do
         if delta_t >= min_delta_t do
           post_discord(
             game.discord_thread_id,
-            "<@#{if turn == :light, do: light_player_discord_id, else: dark_player_discord_id}> it is your move in Game #{game_id} (move #{move_count})."
+            %{
+              content:
+                "<@#{if turn == :light, do: light_player_discord_id, else: dark_player_discord_id}> it is your move in Game #{game_id} (move #{move_count}): your opponent played #{last_move}."
+            }
           )
         end
 
@@ -138,7 +144,7 @@ defmodule Chessh.DiscordNotifier do
           end
 
         if message do
-          post_discord(new_game_channel_id, message)
+          post_discord(new_game_channel_id, %{content: message})
         end
     end
   end
@@ -167,7 +173,10 @@ defmodule Chessh.DiscordNotifier do
 
         post_discord(
           thread_id,
-          "This private thread is used to communicate move notifications. It will be destroyed on game end."
+          %{
+            content:
+              "This private thread is used to communicate move notifications. It will be destroyed on game end."
+          }
         )
 
         thread_id
@@ -177,8 +186,8 @@ defmodule Chessh.DiscordNotifier do
     end
   end
 
-  defp post_discord(channel_id, message) do
-    make_discord_api_call(:post, "channels/#{channel_id}/messages", %{content: message})
+  defp post_discord(channel_id, body) do
+    make_discord_api_call(:post, "channels/#{channel_id}/messages", body)
   end
 
   defp destroy_channel(channel_id) do

lib/chessh/ssh/client/game/game.ex

@@ -455,7 +455,8 @@ defmodule Chessh.SSH.Client.Game do
 
   defp make_highlight_map(
          %State{
-           game: %Game{last_move: last_move},
+           game: %Game{last_move: last_move, turn: turn},
+           binbo_pid: binbo_pid,
            flipped: flipped
          },
          extra_highlights \\ %{}
@@ -465,10 +466,33 @@ defmodule Chessh.SSH.Client.Game do
         [String.slice(last_move, 0..1), String.slice(last_move, 2..4)]
         |> Enum.map(fn coord -> Renderer.from_chess_coord(coord, flipped) end)
 
-      %{
-        prev_move_from => Renderer.previous_move_background(),
-        prev_move_to => Renderer.previous_move_background()
-      }
+      binbo_bin_color = if(turn == :light, do: 0, else: 16)
+      binbo_atom_color = if(turn == :light, do: :white, else: :black)
+
+      check_highlight =
+        if :binbo_position.is_in_check(binbo_bin_color, :binbo.game_state(binbo_pid)) do
+          {:ok, pieces_list} = :binbo.get_pieces_list(binbo_pid, :notation)
+
+          {king_square, _, _} =
+            Enum.find(pieces_list, fn piece ->
+              case piece do
+                {_, ^binbo_atom_color, :king} -> true
+                _ -> false
+              end
+            end)
+
+          %{Renderer.from_chess_coord(king_square, flipped) => Renderer.in_check_color()}
+        else
+          %{}
+        end
+
+      Map.merge(
+        %{
+          prev_move_from => Renderer.previous_move_background(),
+          prev_move_to => Renderer.previous_move_background()
+        },
+        check_highlight
+      )
     else
       %{}
     end

lib/chessh/ssh/client/game/renderer.ex

@@ -12,6 +12,7 @@ defmodule Chessh.SSH.Client.Game.Renderer do
   @previous_move_background ANSI.light_magenta_background()
   @from_select_background ANSI.light_green_background()
   @to_select_background ANSI.light_yellow_background()
+  @in_check_color ANSI.yellow_background()
 
   @dark_piece_color ANSI.red()
   @light_piece_color ANSI.light_cyan()
@@ -21,6 +22,7 @@ defmodule Chessh.SSH.Client.Game.Renderer do
   def to_select_background(), do: @to_select_background
   def from_select_background(), do: @from_select_background
   def previous_move_background(), do: @previous_move_background
+  def in_check_color(), do: @in_check_color
 
   def to_chess_coord({y, x})
       when x >= 0 and x < @chess_board_width and y >= 0 and y < @chess_board_height do