From a1f01d4a2b1ce2a167b7fec1506f3970bf13ea79 Mon Sep 17 00:00:00 2001
From: Lizzy Hunt <elizabeth.hunt@simponic.xyz>
Date: Mon, 13 Mar 2023 14:13:11 -0600
Subject: Move history (#18)

* store move history

* Add previous game viewer
---
 .../ssh/client/menus/select_previous_game.ex       | 102 +++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 lib/chessh/ssh/client/menus/select_previous_game.ex

(limited to 'lib/chessh/ssh/client/menus/select_previous_game.ex')

diff --git a/lib/chessh/ssh/client/menus/select_previous_game.ex b/lib/chessh/ssh/client/menus/select_previous_game.ex
new file mode 100644
index 0000000..5f55c3d
--- /dev/null
+++ b/lib/chessh/ssh/client/menus/select_previous_game.ex
@@ -0,0 +1,102 @@
+defmodule Chessh.SSH.Client.SelectPreviousGame do
+  alias Chessh.{Utils, Repo, Game, PlayerSession}
+  alias Chessh.SSH.Client.GameSelector
+  import Ecto.Query
+  require Logger
+
+  use Chessh.SSH.Client.SelectPaginatePoller
+
+  def refresh_options_ms(), do: 4000
+  def max_displayed_options(), do: 5
+  def title(), do: ["-- Previous Games --"]
+  def dynamic_options(), do: true
+
+  def get_player_sorted_current_games_with_id(player_id, current_id \\ nil, direction \\ :desc) do
+    GameSelector.paginate_ish_query(
+      Game
+      |> where([g], g.status != :continue)
+      |> where([g], g.light_player_id == ^player_id or g.dark_player_id == ^player_id)
+      |> limit(^max_displayed_options()),
+      current_id,
+      direction
+    )
+  end
+
+  def format_game_selection_tuple(%Game{id: game_id} = game) do
+    {Chessh.SSH.Client.Game.Renderer.make_status_line(game, false), game_id}
+  end
+
+  def next_page_options(%State{
+        options: options,
+        player_session: %PlayerSession{player_id: player_id}
+      }) do
+    {_label, previous_last_game_id} = List.last(options)
+    next_games = get_player_sorted_current_games_with_id(player_id, previous_last_game_id, :desc)
+
+    if length(next_games) > 0,
+      do:
+        next_games
+        |> Enum.map(&format_game_selection_tuple/1),
+      else: options
+  end
+
+  def previous_page_options(%State{
+        options: options,
+        player_session: %PlayerSession{player_id: player_id}
+      }) do
+    {_label, previous_first_game_id} = List.first(options)
+
+    previous_games =
+      get_player_sorted_current_games_with_id(player_id, previous_first_game_id, :asc)
+
+    if length(previous_games) > 0,
+      do:
+        previous_games
+        |> Enum.map(&format_game_selection_tuple/1),
+      else: options
+  end
+
+  def initial_options(%State{player_session: %PlayerSession{player_id: player_id}}) do
+    get_player_sorted_current_games_with_id(player_id)
+    |> Enum.map(&format_game_selection_tuple/1)
+  end
+
+  def refresh_options(%State{options: options}) do
+    from(g in Game,
+      where: g.id in ^Enum.map(options, fn {_, id} -> id end),
+      order_by: [desc: g.id]
+    )
+    |> Repo.all()
+    |> Repo.preload([:light_player, :dark_player])
+    |> Enum.map(&format_game_selection_tuple/1)
+  end
+
+  def refresh_options(%State{
+        options: options,
+        player_session: %PlayerSession{player_id: player_id}
+      }) do
+    previous_last_game_id =
+      case List.last(options) do
+        {_label, id} -> id
+        _ -> 0
+      end
+
+    current_screen_games =
+      get_player_sorted_current_games_with_id(player_id, previous_last_game_id - 1, :asc)
+
+    if !is_nil(current_screen_games) && length(current_screen_games),
+      do:
+        current_screen_games
+        |> Enum.map(&format_game_selection_tuple/1),
+      else: options
+  end
+
+  def make_process_tuple(selected_id, _state) do
+    game = Repo.get(Game, selected_id)
+
+    {Chessh.SSH.Client.PreviousGame,
+     %Chessh.SSH.Client.PreviousGame.State{
+       game: game
+     }}
+  end
+end
-- 
cgit v1.2.3-70-g09d2