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<?php
namespace App\Http\Controllers;
use App\Models\Course;
use App\Models\Topic;
use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\Str;
class TopicController extends Controller
{
public function createTopic(Request $request)
{
$validation = Validator::make($request->all(), [
'name' => 'required|unique:topics,name',
'description' => 'required',
'category_id' => 'required|exists:categories,id',
]);
if($validation->fails()) {
return response(['errors' => $validation->errors()->all()], 422);
}
$topics = Topic::create([
'name' => $request->name,
'description' => $request->description,
'category_id' => $request->category_id,
'slug' => Str::slug($request->name),
]);
Cache::forget('topics');
return response(['message' => 'Topic added successfully'], 200);
}
public function getTopic($id)
{
$topic = Topic::find($id);
return response(['data' => $topic], 200);
}
function findTopicbySlug($slug)
{
$topic = Topic::where('slug', $slug)->first();
if(!$topic) {
return response([
'message' => 'No topic was found for this slug',
], 400);
}
return response([
'data' => $topic,
], 200);
}
public function getTopics()
{
$topics = Topic::with(['category:id,name'])->orderBy('id', 'desc')->get();
foreach($topics as $key => $topic) {
$topics[$key]['total_courses'] = Course::where('topic_id', $topic->id)->count();
}
return response(['data' => $topics], 200);
}
public function getTopicsByCategory($cat_id)
{
$topics = Topic::where('category_id', $cat_id)->get();
return response(['data' => $topics], 200);
}
public function updateTopic(Request $request, $id)
{
$validation = Validator::make($request->all(), [
'name' => 'required|unique:topics,name',
'description' => 'required',
'category_id' => 'required|exists:categories,id',
]);
if($validation->fails()) {
return response(['errors' => $validation->errors()->all()], 422);
}
Topic::where('id', $id)->update([
'slug' => Str::slug($request->name),
'name' => $request->name,
'description' => $request->description,
'category_id' => $request->category_id,
]);
return response(['message' => 'Topic has been updated successfully',], 200);
}
public function groupTopicsByCategoryId()
{
if(Cache::has('topics')) {
$cache = Cache::get('topics');
return response(content: ['data' => $cache], status: 200);
}
$topics = Topic::get()->groupBy(fn($data) => $data->category_id);
$expiry = now()->addWeek();
Cache::put('topics', $topics, $expiry);
return response(['data' => $topics], 200);
}
}