Do not send notifications when game is over & fix promotion screen (#15)

lib/chessh/discord/notifier.ex

@@ -55,28 +55,26 @@ defmodule Chessh.DiscordNotifier do
       |> Keyword.take([:game_move_notif_delay_ms, :discord_game_move_notif_webhook])
       |> Keyword.values()
 
-    case Repo.get(Game, game_id) do
+    case Repo.get(Game, game_id) |> Repo.preload([:dark_player, :light_player]) do
-      nil ->
+      %Game{
-        nil
+        dark_player: %Player{discord_id: dark_player_discord_id},
-
+        light_player: %Player{discord_id: light_player_discord_id},
-      game ->
+        turn: turn,
-        %Game{
+        updated_at: last_updated,
-          dark_player: %Player{discord_id: dark_player_discord_id},
+        moves: move_count,
-          light_player: %Player{discord_id: light_player_discord_id},
+        status: :continue
-          turn: turn,
+      } ->
-          updated_at: last_updated,
-          moves: move_count,
-          status: status
-        } = Repo.preload(game, [:dark_player, :light_player])
-
         delta_t = NaiveDateTime.diff(NaiveDateTime.utc_now(), last_updated, :millisecond)
 
-        if delta_t >= min_delta_t && status == :continue do
+        if delta_t >= min_delta_t do
           post_discord(
             discord_game_move_notif_webhook,
             "<@#{if turn == :light, do: light_player_discord_id, else: dark_player_discord_id}> it is your move in Game #{game_id} (move #{move_count})."
           )
         end
+
+      _ ->
+        nil
     end
   end
 
@@ -99,10 +97,10 @@ defmodule Chessh.DiscordNotifier do
         message =
           case {is_nil(light_player), is_nil(dark_player)} do
             {true, false} ->
-              "#{pingable_mention}, <@#{dark_player.discord_id}> is looking for an opponent to play as light in Game #{game_id}"
+              "#{pingable_mention}, <@#{dark_player.discord_id}> is looking for an opponent to play with light pieces in Game #{game_id}"
 
             {false, true} ->
-              "#{pingable_mention}, <@#{light_player.discord_id}> is looking for an opponent to play as dark in Game #{game_id}"
+              "#{pingable_mention}, <@#{light_player.discord_id}> is looking for an opponent to play with dark pieces in Game #{game_id}"
 
             _ ->
               false

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

@@ -262,22 +262,21 @@ defmodule Chessh.SSH.Client.Game do
         do: Renderer.flip({new_cursor.y, new_cursor.x}),
         else: {new_cursor.y, new_cursor.x}
 
-    piece_type =
-      :binbo_position.get_piece(
-        :binbo_board.notation_to_index(Renderer.to_chess_coord(maybe_flipped_cursor_tup)),
-        :binbo.game_state(binbo_pid)
-      )
-
     {new_move_from, move_to} =
       if action == :return do
         coords = {new_cursor.y, new_cursor.x}
 
         case move_from do
           nil ->
-            if piece_type != 0 do
+            if :binbo_position.get_piece(
-              {coords, nil}
+                 :binbo_board.notation_to_index(
-            else
+                   Renderer.to_chess_coord(maybe_flipped_cursor_tup)
+                 ),
+                 :binbo.game_state(binbo_pid)
+               ) == 0 do
               {move_from, nil}
+            else
+              {coords, nil}
             end
 
           _ ->
@@ -307,10 +306,15 @@ defmodule Chessh.SSH.Client.Game do
       })
 
     if move_from && move_to do
-      maybe_flipped_to = if flipped, do: Renderer.flip(move_to), else: move_to
+      [maybe_flipped_to, maybe_flipped_from] =
+        [move_to, move_from]
+        |> Enum.map(fn coord -> if flipped, do: Renderer.flip(coord), else: coord end)
 
       promotion_possible =
-        case piece_type do
+        case :binbo_position.get_piece(
+               :binbo_board.notation_to_index(Renderer.to_chess_coord(maybe_flipped_from)),
+               :binbo.game_state(binbo_pid)
+             ) do
           1 ->
             # Light pawn
             {y, _} = maybe_flipped_to