<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Slider;
use App\Traits\HandlesImageUpload;

class SliderController extends Controller
{
    use HandlesImageUpload;

    public function index()
    {
        return response()->json([
            'data' => Slider::with('image')->get()
        ]);
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'title' => 'required|string|max:255',
            'description' => 'nullable|string',
            'url' => 'nullable|string|max:500',
            'action' => 'nullable|array',
            'image_id' => 'nullable|exists:images,id',
            'image' => 'nullable|file|extensions:jpg,jpeg,png,gif,webp,bmp,svg|max:8192',
        ]);

        // An uploaded image file takes precedence over a provided image_id.
        $data['image_id'] = $this->uploadedImageId($request) ?? ($data['image_id'] ?? null);

        $slider = Slider::create($data);

        return response()->json([
            'message' => 'Slider created successfully',
            'data' => $slider->load('image'),
        ]);
    }

    public function show($id)
    {
        $slider = Slider::with('image')->findOrFail($id);
        return response()->json($slider);
    }

    public function update(Request $request, $id)
    {
        $slider = Slider::findOrFail($id);

        $data = $request->validate([
            'title' => 'sometimes|string|max:255',
            'description' => 'sometimes|string',
            'url' => 'sometimes|string|max:500',
            'action' => 'nullable|array',
            'image_id' => 'nullable|exists:images,id',
            'image' => 'nullable|file|extensions:jpg,jpeg,png,gif,webp,bmp,svg|max:8192',
        ]);

        // An uploaded image file takes precedence over a provided image_id.
        if (($uploadedImageId = $this->uploadedImageId($request)) !== null) {
            $data['image_id'] = $uploadedImageId;
        }

        $slider->update($data);

        return response()->json([
            'message' => 'Slider updated successfully',
            'data' => $slider->load('image'),
        ]);
    }

    public function destroy($id)
    {
        $slider = Slider::findOrFail($id);
        $slider->delete();

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