Implement comment, voting, and user profile features

Added controllers for comments, voting system, user profiles, and home page.
Includes nested comment support and karma calculation.

app/Http/Controllers/CommentController.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Comment;
+use App\Models\Post;
+use Illuminate\Http\Request;
+
+class CommentController extends Controller
+{
+    public function store(Request $request, Post $post)
+    {
+        $validated = $request->validate([
+            'content' => 'required|string',
+            'parent_id' => 'nullable|exists:comments,id',
+        ]);
+
+        $comment = Comment::create([
+            'post_id' => $post->id,
+            'user_id' => auth()->id(),
+            'parent_id' => $validated['parent_id'] ?? null,
+            'content' => $validated['content'],
+        ]);
+
+        return back()->with('success', 'Comment posted successfully!');
+    }
+
+    public function destroy(Comment $comment)
+    {
+        if ($comment->user_id !== auth()->id()) {
+            abort(403);
+        }
+
+        $comment->delete();
+        return back()->with('success', 'Comment deleted successfully!');
+    }
+}

app/Http/Controllers/HomeController.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Post;
+use Illuminate\Http\Request;
+
+class HomeController extends Controller
+{
+    public function index()
+    {
+        $posts = Post::with(['user', 'community', 'comments'])
+            ->orderBy('votes', 'desc')
+            ->orderBy('created_at', 'desc')
+            ->paginate(20);
+
+        return view('home', compact('posts'));
+    }
+}

app/Http/Controllers/UserController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\User;
+use Illuminate\Http\Request;
+
+class UserController extends Controller
+{
+    public function show(User $user)
+    {
+        $posts = $user->posts()
+            ->with(['community', 'comments'])
+            ->orderBy('created_at', 'desc')
+            ->paginate(20);
+
+        $comments = $user->comments()
+            ->with(['post', 'post.community'])
+            ->orderBy('created_at', 'desc')
+            ->paginate(20);
+
+        return view('users.show', compact('user', 'posts', 'comments'));
+    }
+}

app/Http/Controllers/VoteController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Comment;
+use App\Models\Post;
+use App\Models\Vote;
+use Illuminate\Http\Request;
+
+class VoteController extends Controller
+{
+    public function votePost(Request $request, Post $post)
+    {
+        $validated = $request->validate([
+            'vote' => 'required|in:1,-1',
+        ]);
+
+        $existingVote = Vote::where([
+            'user_id' => auth()->id(),
+            'voteable_id' => $post->id,
+            'voteable_type' => Post::class,
+        ])->first();
+
+        if ($existingVote) {
+            if ($existingVote->vote == $validated['vote']) {
+                $existingVote->delete();
+                $this->updateVoteCount($post);
+                return back();
+            }
+            $existingVote->update(['vote' => $validated['vote']]);
+        } else {
+            Vote::create([
+                'user_id' => auth()->id(),
+                'voteable_id' => $post->id,
+                'voteable_type' => Post::class,
+                'vote' => $validated['vote'],
+            ]);
+        }
+
+        $this->updateVoteCount($post);
+        $this->updateUserKarma($post->user);
+
+        return back();
+    }
+
+    public function voteComment(Request $request, Comment $comment)
+    {
+        $validated = $request->validate([
+            'vote' => 'required|in:1,-1',
+        ]);
+
+        $existingVote = Vote::where([
+            'user_id' => auth()->id(),
+            'voteable_id' => $comment->id,
+            'voteable_type' => Comment::class,
+        ])->first();
+
+        if ($existingVote) {
+            if ($existingVote->vote == $validated['vote']) {
+                $existingVote->delete();
+                $this->updateVoteCount($comment);
+                return back();
+            }
+            $existingVote->update(['vote' => $validated['vote']]);
+        } else {
+            Vote::create([
+                'user_id' => auth()->id(),
+                'voteable_id' => $comment->id,
+                'voteable_type' => Comment::class,
+                'vote' => $validated['vote'],
+            ]);
+        }
+
+        $this->updateVoteCount($comment);
+        $this->updateUserKarma($comment->user);
+
+        return back();
+    }
+
+    private function updateVoteCount($model)
+    {
+        $model->votes = $model->votes()->sum('vote');
+        $model->save();
+    }
+
+    private function updateUserKarma($user)
+    {
+        $postKarma = $user->posts()->sum('votes');
+        $commentKarma = $user->comments()->sum('votes');
+        $user->karma = $postKarma + $commentKarma;
+        $user->save();
+    }
+}