Core implementation: controllers, views, routes, models, import command

app/Http/Controllers/LibraryController.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Game;
+use App\Models\UserGame;
+use Illuminate\Http\Request;
+
+class LibraryController extends Controller
+{
+    public function __construct()
+    {
+        $this->middleware('auth');
+    }
+
+    public function store(Request $request)
+    {
+        $request->validate([
+            'game_id' => 'required|exists:games,id',
+            'status'  => 'required|in:' . implode(',', UserGame::STATUSES),
+            'rating'  => 'nullable|integer|min:1|max:10',
+        ]);
+
+        $userGame = UserGame::updateOrCreate(
+            ['user_id' => auth()->id(), 'game_id' => $request->game_id],
+            ['status' => $request->status, 'rating' => $request->rating]
+        );
+
+        // Recalculate rating on the game
+        $userGame->game->recalculateRating();
+
+        if ($request->expectsJson()) {
+            return response()->json(['status' => 'ok', 'userGame' => $userGame]);
+        }
+
+        return back()->with('success', 'Added to your library.');
+    }
+
+    public function update(Request $request, UserGame $userGame)
+    {
+        $this->authorize('update', $userGame);
+
+        $request->validate([
+            'status' => 'sometimes|in:' . implode(',', UserGame::STATUSES),
+            'rating' => 'nullable|integer|min:1|max:10',
+            'notes'  => 'nullable|string|max:1000',
+        ]);
+
+        $userGame->update($request->only(['status', 'rating', 'notes']));
+        $userGame->game->recalculateRating();
+
+        if ($request->expectsJson()) {
+            return response()->json(['status' => 'ok', 'userGame' => $userGame]);
+        }
+
+        return back()->with('success', 'Library entry updated.');
+    }
+
+    public function destroy(UserGame $userGame)
+    {
+        $this->authorize('delete', $userGame);
+
+        $game = $userGame->game;
+        $userGame->delete();
+        $game->recalculateRating();
+
+        if (request()->expectsJson()) {
+            return response()->json(['status' => 'ok']);
+        }
+
+        return back()->with('success', 'Removed from your library.');
+    }
+}