<?php

namespace App\Http\Controllers\Admin\Product;

use App\Services\Admin\Product\AdminMediaService;
use Illuminate\Http\Request;

final class AdminMediaController
{
    public function __construct(
        private readonly AdminMediaService $service,
    ) {}

    public function index(Request $request)
    {
        $data = $this->service->list($request->all());
        return view('admin.product.media.index', $data);
    }

    public function store(Request $request)
    {
        $request->validate([
            'folder_name' => ['required', 'string', 'max:50'],
            'media_name'  => ['nullable', 'string', 'max:100'],
            'images'      => ['required', 'array', 'max:20'],
            'images.*'    => ['image', 'mimes:jpeg,png,jpg,gif,webp', 'max:2048'],
        ]);

        $actorId = (int) auth('admin')->id();
        $ip = (string) $request->ip();
        $ua = (string) ($request->userAgent() ?? '');
        $customName = $request->input('media_name');

        $successCount = 0;

        // [수정된 부분] foreach의 $index는 가끔 string으로 인식될 수 있습니다.
        foreach ($request->file('images') as $index => $file) {
            $res = $this->service->uploadImage(
                $request->only('folder_name'),
                $file,
                $customName,
                (int) $index, // ✅ [핵심 수정] (int)를 붙여서 정수로 강제 변환
                $actorId,
                $ip,
                $ua
            );

            if ($res['ok']) {
                $successCount++;
            }
        }

        return redirect()->back()->with('toast', [
            'type' => 'success',
            'title' => '업로드 완료',
            'message' => "총 {$successCount}장의 이미지가 업로드 되었습니다.",
        ]);
    }

    public function destroy(int $id, Request $request)
    {
        $res = $this->service->deleteImage($id, (int) auth('admin')->id(), $request->ip(), $request->userAgent() ?? '');

        return redirect()->back()->with('toast', [
            'type' => $res['ok'] ? 'success' : 'danger',
            'title' => '알림',
            'message' => $res['message'],
        ]);
    }

    /**
     * 추후 '상품 등록' 모달 창에서 AJAX로 이미지를 불러오기 위한 API 엔드포인트
     */
    public function apiList(Request $request)
    {
        $data = $this->service->list($request->all());
        return response()->json([
            'data' => $data['page']->items(),
            'links' => (string) $data['page']->links(),
        ]);
    }

    public function updateName(int $id, Request $request)
    {
        $data = $request->validate(['name' => ['required', 'string', 'max:150']]);
        $res = $this->service->updateMediaName($id, $data['name'], (int)auth('admin')->id(), $request->ip(), $request->userAgent() ?? '');
        return response()->json($res);
    }
}