feat: clean ups and shorter files

src/app/services/bot-move.service.ts

@@ -0,0 +1,78 @@
+import { Injectable, DestroyRef, inject } from '@angular/core';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
+import { delay, Subscription } from 'rxjs';
+import { GameApiService } from './game-api.service';
+import { getErrorMessage } from '../core/http/error-message.util';
+import { GameFull, GameState } from '../models/game.models';
+
+@Injectable({ providedIn: 'root' })
+export class BotMoveService {
+  private readonly gameApi = inject(GameApiService);
+  private readonly destroyRef = inject(DestroyRef);
+  private botMoveSubscription: Subscription | null = null;
+
+  private isBotPlayer(playerId: string): boolean {
+    return playerId.startsWith('bot-');
+  }
+
+  isPlayingAgainstBot(game: GameFull | null): boolean {
+    if (!game) {
+      return false;
+    }
+    return this.isBotPlayer(game.white.id) || this.isBotPlayer(game.black.id);
+  }
+
+  isCurrentPlayerBot(game: GameFull | null, state: GameState | null): boolean {
+    if (!game || !state) {
+      return false;
+    }
+    const currentPlayer = state.turn === 'white' ? game.white : game.black;
+    return this.isBotPlayer(currentPlayer.id);
+  }
+
+  tryMakeBotMove(
+    gameId: string,
+    game: GameFull | null,
+    state: GameState | null,
+    onSuccess: (updatedState: GameState) => void,
+    onError: (error: string) => void
+  ): void {
+    if (!this.isPlayingAgainstBot(game) || !this.isCurrentPlayerBot(game, state) || !state) {
+      return;
+    }
+
+    this.botMoveSubscription?.unsubscribe();
+    this.botMoveSubscription = this.gameApi
+      .getLegalMoves(gameId)
+      .pipe(
+        delay(1000),
+        takeUntilDestroyed(this.destroyRef)
+      )
+      .subscribe({
+        next: (response) => {
+          if (response.moves.length === 0) {
+            return;
+          }
+          const botMove = response.moves[Math.floor(Math.random() * response.moves.length)];
+          this.gameApi
+            .makeMove(gameId, botMove.uci)
+            .pipe(takeUntilDestroyed(this.destroyRef))
+            .subscribe({
+              next: (updatedState) => {
+                onSuccess(updatedState);
+              },
+              error: (error) => {
+                onError(getErrorMessage(error, 'Bot move failed.'));
+              }
+            });
+        },
+        error: () => {
+          onError('Could not get legal moves for bot move.');
+        }
+      });
+  }
+
+  cleanup(): void {
+    this.botMoveSubscription?.unsubscribe();
+  }
+}