<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\News;
use App\Models\NewsImage;
use App\Models\Setting;
use App\Models\User;
use App\Notifications\NewsActionNotification;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Notification;
use Illuminate\Support\Str;
use Illuminate\Support\Facades\Storage;

class NewsController extends Controller
{
    public function index()
    {
        $newsList = News::withCount('images')->latest()->paginate(10);
        $newsEnabled = Setting::get('news_enabled', 'on') === 'on';
        return view('admin.news.index', compact('newsList', 'newsEnabled'));
    }

    public function toggleVisibility()
    {
        $current = Setting::get('news_enabled', 'on');
        $newValue = $current === 'on' ? 'off' : 'on';
        Setting::set('news_enabled', $newValue, 'news');

        $status = $newValue === 'on' ? 'ativado' : 'desativado';
        return redirect()->route('admin.news.index')->with('success', "Módulo de Notícias {$status} com sucesso.");
    }

    public function create()
    {
        return view('admin.news.create');
    }

    public function store(Request $request)
    {
        $request->validate([
            'title' => 'required|string|max:255',
            'slug' => 'required|string|max:255|unique:news',
            'summary' => 'nullable|string|max:500',
            'content' => 'nullable|string',
            'author' => 'nullable|string|max:255',
            'featured_image' => 'nullable|image|max:5120|mimes:jpeg,png,jpg,gif,webp',
            'published_at' => 'nullable|date',
            'seo_title' => 'nullable|string|max:255',
            'seo_description' => 'nullable|string|max:500',
            'seo_keywords' => 'nullable|string|max:255',
        ], [
            'featured_image.mimes' => 'A imagem deve ser do tipo: JPEG, PNG, JPG, GIF ou WebP.',
        ]);

        $data = $request->except('featured_image');
        $data['active'] = true;
        $data['user_id'] = Auth::id();

        if ($request->hasFile('featured_image')) {
            $data['featured_image'] = $request->file('featured_image')->store('news/featured', 'public');
        }

        $news = News::create($data);

        /** @var \App\Models\User $user */
        $user = Auth::user();
        $admins = User::where('user_type', 'Admin')->where('id', '!=', $user->id)->get();
        Notification::send($admins, new NewsActionNotification($news, $user, 'created'));

        return redirect()->route('admin.news.index')->with('success', 'Notícia criada com sucesso.');
    }

    public function edit(News $news)
    {
        $news->load('images');
        return view('admin.news.edit', compact('news'));
    }

    public function update(Request $request, News $news)
    {
        $request->validate([
            'title' => 'required|string|max:255',
            'slug' => 'required|string|max:255|unique:news,slug,' . $news->id,
            'summary' => 'nullable|string|max:500',
            'content' => 'nullable|string',
            'author' => 'nullable|string|max:255',
            'featured_image' => 'nullable|image|max:5120',
            'active' => 'required|boolean',
            'published_at' => 'nullable|date',
            'seo_title' => 'nullable|string|max:255',
            'seo_description' => 'nullable|string|max:500',
            'seo_keywords' => 'nullable|string|max:255',
        ]);

        $data = $request->except('featured_image');

        if ($request->hasFile('featured_image')) {
            // Delete old featured image
            if ($news->featured_image) {
                Storage::disk('public')->delete($news->featured_image);
            }
            $data['featured_image'] = $request->file('featured_image')->store('news/featured', 'public');
        }

        $news->update($data);

        /** @var \App\Models\User $user */
        $user = Auth::user();
        $admins = User::where('user_type', 'Admin')->where('id', '!=', $user->id)->get();
        Notification::send($admins, new NewsActionNotification($news, $user, 'updated'));

        return redirect()->route('admin.news.index')->with('success', 'Notícia atualizada com sucesso.');
    }

    public function destroy(News $news)
    {
        // Delete featured image
        if ($news->featured_image) {
            Storage::disk('public')->delete($news->featured_image);
        }

        // Delete all additional images
        foreach ($news->images as $image) {
            Storage::disk('public')->delete($image->file_path);
        }

        $news->delete();
        return redirect()->route('admin.news.index')->with('success', 'Notícia excluída com sucesso.');
    }

    // Featured Image Management
    public function removeFeaturedImage(News $news)
    {
        if ($news->featured_image) {
            Storage::disk('public')->delete($news->featured_image);
            $news->update(['featured_image' => null]);
        }
        return redirect()->back()->with('success', 'Imagem principal removida.');
    }

    // Additional Images Management
    public function uploadImage(Request $request, News $news)
    {
        $request->validate([
            'images' => 'required|array|min:1|max:10',
            'images.*' => 'image|max:5120|mimes:jpeg,png,jpg,gif,webp', // 5MB each
        ], [
            'images.max' => 'Máximo de 10 imagens permitidas.',
            'images.*.mimes' => 'As imagens devem ser do tipo: JPEG, PNG, JPG, GIF ou WebP.',
        ]);

        $order = $news->images()->count() + 1;
        $count = 0;

        foreach ($request->file('images') as $file) {
            $path = $file->store('news/' . $news->id, 'public');

            NewsImage::create([
                'news_id' => $news->id,
                'file_path' => $path,
                'order' => $order++,
            ]);
            $count++;
        }

        /** @var \App\Models\User $user */
        $user = Auth::user();
        $admins = User::where('user_type', 'Admin')->where('id', '!=', $user->id)->get();
        Notification::send($admins, new NewsActionNotification($news, $user, 'photo_added'));

        $message = $count === 1 ? 'Imagem adicionada à notícia.' : "{$count} imagens adicionadas à notícia.";
        return redirect()->back()->with('success', $message);
    }

    public function updateImage(Request $request, NewsImage $image)
    {
        $request->validate([
            'description' => 'nullable|string|max:255',
            'order' => 'required|integer',
        ]);

        $image->update($request->only('description', 'order'));

        return redirect()->back()->with('success', 'Imagem atualizada.');
    }

    public function deleteImage(NewsImage $image)
    {
        $news = $image->news;
        Storage::disk('public')->delete($image->file_path);
        $image->delete();

        /** @var \App\Models\User $user */
        $user = Auth::user();
        $admins = User::where('user_type', 'Admin')->where('id', '!=', $user->id)->get();
        Notification::send($admins, new NewsActionNotification($news, $user, 'photo_deleted'));

        return redirect()->back()->with('success', 'Imagem removida.');
    }
}