<?php

namespace App\Http\Controllers;

use App\Models\Faq;
use App\Models\FaqCategory;
use Illuminate\Http\Request;

class FaqController extends Controller
{
    // APP: active FAQ categories, each with their active questions (grouped).
    // Pass ?include_inactive=1 (admin) to get everything.
    public function index(Request $request)
    {
        $includeInactive = $request->boolean('include_inactive');

        $categories = FaqCategory::query()
            ->with(['faqs' => function ($q) use ($includeInactive) {
                if (!$includeInactive) {
                    $q->where('is_active', true);
                }
                $q->orderBy('order');
            }])
            ->when(!$includeInactive, fn ($q) => $q->where('is_active', true))
            ->orderBy('order')
            ->get();

        return response()->json($categories);
    }

    public function show($id)
    {
        return response()->json(Faq::with('category')->findOrFail($id));
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'faq_category_id' => 'required|exists:faq_categories,id',
            'question' => 'required|string|max:500',
            'answer' => 'required|string',
            'order' => 'nullable|integer',
            'is_active' => 'nullable|boolean',
        ]);

        $faq = Faq::create($data);

        return response()->json(['message' => 'FAQ created', 'faq' => $faq->load('category')], 201);
    }

    public function update(Request $request, $id)
    {
        $faq = Faq::findOrFail($id);

        $data = $request->validate([
            'faq_category_id' => 'sometimes|exists:faq_categories,id',
            'question' => 'sometimes|string|max:500',
            'answer' => 'sometimes|string',
            'order' => 'nullable|integer',
            'is_active' => 'nullable|boolean',
        ]);

        $faq->update($data);

        return response()->json(['message' => 'FAQ updated', 'faq' => $faq->load('category')]);
    }

    public function destroy($id)
    {
        Faq::findOrFail($id)->delete();

        return response()->json(['message' => 'FAQ deleted']);
    }
}