From 3a76d94a08fd8c74d4b9bdc27ece8422012d339b Mon Sep 17 00:00:00 2001
From: Trevor Bayless <3620552+trevorbayless@users.noreply.github.com>
Date: Tue, 25 Jun 2024 17:20:40 -0500
Subject: [PATCH] Properly display exceptions if caught during game creation

---
 .../game/online_game/online_game_model.py     | 54 ++++++++++---------
 .../game/online_game/online_game_presenter.py |  2 +
 2 files changed, 32 insertions(+), 24 deletions(-)

diff --git a/src/cli_chess/core/game/online_game/online_game_model.py b/src/cli_chess/core/game/online_game/online_game_model.py
index 64ee4dc..87a2321 100644
--- a/src/cli_chess/core/game/online_game/online_game_model.py
+++ b/src/cli_chess/core/game/online_game/online_game_model.py
@@ -38,30 +38,36 @@ def __init__(self, game_parameters: dict, is_vs_ai: bool):
     @threaded
     def create_game(self) -> None:
         """Sends a request to lichess to start an AI challenge using the selected game parameters"""
-        # Note: Only subscribe to IEM events right before creating challenge to lessen chance of grabbing another game
-        self.api_iem.add_event_listener(self._handle_iem_event)
-        self._notify_game_model_updated(EventTopics.GAME_SEARCH)
-        self.searching = True
-
-        if self.vs_ai:  # Challenge Lichess AI (stockfish)
-            self.api_client.challenges.create_ai(level=self.game_metadata.players[not self.my_color].ai_level,
-                                                 clock_limit=self.game_metadata.clocks[WHITE].time * 60,  # challenges need time in seconds
-                                                 clock_increment=self.game_metadata.clocks[WHITE].increment,
-                                                 color=COLOR_NAMES[self.game_metadata.my_color],
-                                                 variant=self.game_metadata.variant)
-        else:  # Find a random opponent
-            payload = {
-                "rated": str(self.game_metadata.rated).lower(),
-                "time": self.game_metadata.clocks[WHITE].time,
-                "increment": self.game_metadata.clocks[WHITE].increment,
-                "variant": self.game_metadata.variant,
-                "color": COLOR_NAMES[self.game_metadata.my_color],
-                "ratingRange": "",
-            }
-
-            for _ in self.api_client.board._r.post("/api/board/seek", data=payload, fmt=TEXT, stream=True):
-                if not self.searching:
-                    break
+        try:
+            # Note: Only subscribe to IEM events right before creating challenge to lessen chance of grabbing another game
+            self.api_iem.add_event_listener(self._handle_iem_event)
+            self._notify_game_model_updated(EventTopics.GAME_SEARCH)
+            self.searching = True
+
+            if self.vs_ai:  # Challenge Lichess AI (stockfish)
+                self.api_client.challenges.create_ai(level=self.game_metadata.players[not self.my_color].ai_level,
+                                                     clock_limit=self.game_metadata.clocks[WHITE].time * 60,  # challenges need time in seconds
+                                                     clock_increment=self.game_metadata.clocks[WHITE].increment,
+                                                     color=COLOR_NAMES[self.game_metadata.my_color],
+                                                     variant=self.game_metadata.variant)
+            else:  # Find a random opponent
+                payload = {
+                    "rated": str(self.game_metadata.rated).lower(),
+                    "time": self.game_metadata.clocks[WHITE].time,
+                    "increment": self.game_metadata.clocks[WHITE].increment,
+                    "variant": self.game_metadata.variant,
+                    "color": COLOR_NAMES[self.game_metadata.my_color],
+                    "ratingRange": "",
+                }
+                for _ in self.api_client.board._r.post("/api/board/seek", data=payload, fmt=TEXT, stream=True):
+                    if not self.searching:
+                        break
+        except Exception as e:
+            # Since this exception happened in a thread, notify via the model event instead of raising
+            self.searching = False
+            msg = f"Error creating online game: {e}"
+            log.error(msg)
+            self._notify_game_model_updated(EventTopics.ERROR, msg=msg)
 
     def _start_game(self, game_id: str) -> None:
         """Called when a game is started. Sets proper class variables
diff --git a/src/cli_chess/core/game/online_game/online_game_presenter.py b/src/cli_chess/core/game/online_game/online_game_presenter.py
index 31d9111..4a9afe3 100644
--- a/src/cli_chess/core/game/online_game/online_game_presenter.py
+++ b/src/cli_chess/core/game/online_game/online_game_presenter.py
@@ -29,6 +29,8 @@ def update(self, *args, **kwargs) -> None:
         super().update(*args, **kwargs)
         if EventTopics.GAME_SEARCH in args:
             self.view.alert.show_alert("Searching for opponent...", AlertType.NEUTRAL)
+        elif EventTopics.ERROR in args:
+            self.view.alert.show_alert(kwargs.get('msg', "An unspecified error has occurred"), AlertType.ERROR)
 
     def _parse_and_present_game_over(self) -> None:
         """Triages game over status for parsing and sending to the view for display"""