@extends('layouts.admin')

@section('title', 'Modifier l\'article')

@section('content')
<div class="container mx-auto px-4 py-8">
    <div class="flex justify-between items-center mb-8">
        <h1 class="text-3xl font-bold text-gray-900">Modifier l'article</h1>
        <div class="space-x-4">
            @if($post->is_published)
            <a href="{{ route('blog.show', $post) }}" target="_blank" class="bg-green-600 text-white px-4 py-2 rounded-lg hover:bg-green-700 transition-colors duration-200">
                Voir l'article
            </a>
            @endif
            <a href="{{ route('admin.blog.index') }}" class="bg-gray-600 text-white px-4 py-2 rounded-lg hover:bg-gray-700 transition-colors duration-200">
                Retour à la liste
            </a>
        </div>
    </div>

    @if($errors->any())
    <div class="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-6">
        <ul class="list-disc list-inside">
            @foreach($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
    @endif

    <form action="{{ route('admin.blog.update', $post) }}" method="POST" enctype="multipart/form-data" class="bg-white rounded-lg shadow p-6">
        @csrf
        @method('PUT')
        
        <div class="grid grid-cols-1 lg:grid-cols-3 gap-6">
            <!-- Contenu principal -->
            <div class="lg:col-span-2 space-y-6">
                <!-- Titre -->
                <div>
                    <label for="title" class="block text-sm font-medium text-gray-700 mb-2">Titre de l'article *</label>
                    <input type="text" id="title" name="title" value="{{ old('title', $post->title) }}" required 
                           class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent">
                </div>

                <!-- Extrait -->
                <div>
                    <label for="excerpt" class="block text-sm font-medium text-gray-700 mb-2">Extrait</label>
                    <textarea id="excerpt" name="excerpt" rows="3" 
                              class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent">{{ old('excerpt', $post->excerpt) }}</textarea>
                    <p class="text-sm text-gray-500 mt-1">Résumé court de l'article (optionnel)</p>
                </div>

                <!-- Contenu avec éditeur CKEditor 5 -->
                <div>
                    <label for="content" class="block text-sm font-medium text-gray-700 mb-2">Contenu de l'article *</label>
                    <div id="editor" style="min-height: 500px;"></div>
                    <textarea id="content" name="content" style="display: none;" required>{{ old('content', $post->content) }}</textarea>
                </div>

                <!-- SEO -->
                <div class="border-t pt-6">
                    <h3 class="text-lg font-medium text-gray-900 mb-4">Optimisation SEO</h3>
                    
                    <div class="space-y-4">
                        <div>
                            <label for="meta_title" class="block text-sm font-medium text-gray-700 mb-2">Titre SEO</label>
                            <input type="text" id="meta_title" name="meta_title" value="{{ old('meta_title', $post->meta_title) }}" 
                                   class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent">
                        </div>
                        
                        <div>
                            <label for="meta_description" class="block text-sm font-medium text-gray-700 mb-2">Description SEO</label>
                            <textarea id="meta_description" name="meta_description" rows="3" 
                                      class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent">{{ old('meta_description', $post->meta_description) }}</textarea>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Sidebar -->
            <div class="space-y-6">
                <!-- Publication -->
                <div class="bg-gray-50 p-4 rounded-lg">
                    <h3 class="text-lg font-medium text-gray-900 mb-4">Publication</h3>
                    
                    <div class="space-y-4">
                        <div class="flex items-center">
                            <input type="checkbox" id="is_published" name="is_published" value="1" 
                                   {{ old('is_published', $post->is_published) ? 'checked' : '' }}
                                   class="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded">
                            <label for="is_published" class="ml-2 block text-sm text-gray-900">
                                Article publié
                            </label>
                        </div>
                        
                        @if($post->published_at)
                        <p class="text-sm text-gray-600">
                            Publié le {{ $post->published_at->format('d/m/Y à H:i') }}
                        </p>
                        @endif
                    </div>
                </div>

                <!-- Image mise en avant -->
                <div class="bg-gray-50 p-4 rounded-lg">
                    <h3 class="text-lg font-medium text-gray-900 mb-4">Image mise en avant</h3>
                    
                    @if($post->featured_image)
                    <div class="mb-4">
                        <img src="{{ Storage::url($post->featured_image) }}" alt="Image actuelle" class="w-full h-32 object-cover rounded">
                        <p class="text-sm text-gray-500 mt-1">Image actuelle</p>
                    </div>
                    @endif
                    
                    <div>
                        <input type="file" id="featured_image" name="featured_image" accept="image/*" 
                               class="w-full px-3 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent">
                        <p class="text-sm text-gray-500 mt-1">JPG, PNG, GIF (max 2MB) - Laisser vide pour conserver l'image actuelle</p>
                    </div>
                </div>

                <!-- Catégories -->
                <div class="bg-gray-50 p-4 rounded-lg">
                    <h3 class="text-lg font-medium text-gray-900 mb-4">Catégories</h3>
                    
                    <div class="space-y-2 max-h-48 overflow-y-auto">
                        @foreach($categories as $category)
                        <div class="flex items-center">
                            <input type="checkbox" id="category_{{ $category->id }}" name="categories[]" value="{{ $category->id }}"
                                   {{ in_array($category->id, old('categories', $post->categories->pluck('id')->toArray())) ? 'checked' : '' }}
                                   class="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded">
                            <label for="category_{{ $category->id }}" class="ml-2 block text-sm text-gray-900">
                                {{ $category->name }}
                            </label>
                        </div>
                        @endforeach
                    </div>
                    
                    @if($categories->isEmpty())
                    <p class="text-sm text-gray-500">Aucune catégorie disponible. 
                        <a href="{{ route('admin.blog.categories') }}" class="text-blue-600 hover:text-blue-800">Créer une catégorie</a>
                    </p>
                    @endif
                </div>

                <!-- Actions -->
                <div class="space-y-3">
                    <button type="submit" class="w-full bg-blue-600 text-white px-4 py-2 rounded-lg hover:bg-blue-700 transition-colors duration-200">
                        Mettre à jour
                    </button>
                    
                    <button type="button" onclick="duplicatePost()" class="w-full bg-green-600 text-white px-4 py-2 rounded-lg hover:bg-green-700 transition-colors duration-200">
                        Dupliquer l'article
                    </button>
                    
                    <button type="button" onclick="deletePost()" class="w-full bg-red-600 text-white px-4 py-2 rounded-lg hover:bg-red-700 transition-colors duration-200">
                        Supprimer l'article
                    </button>
                    
                    <a href="{{ route('admin.blog.index') }}" class="block w-full text-center bg-gray-300 text-gray-700 px-4 py-2 rounded-lg hover:bg-gray-400 transition-colors duration-200">
                        Annuler
                    </a>
                </div>
            </div>
        </div>
    </form>
</div>

<!-- CKEditor 5 CDN -->
<script src="https://cdn.ckeditor.com/ckeditor5/40.2.0/classic/ckeditor.js"></script>
<script>
// Configuration CKEditor 5
ClassicEditor
    .create(document.querySelector('#content'), {
        language: 'fr',
        toolbar: {
            items: [
                'heading', '|',
                'bold', 'italic', 'underline', 'link', '|',
                'bulletedList', 'numberedList', '|',
                'outdent', 'indent', '|',
                'imageUpload', 'blockQuote', 'insertTable', '|',
                'undo', 'redo', '|',
                'fontSize', 'fontColor', 'fontBackgroundColor', '|',
                'alignment', 'horizontalLine', 'specialCharacters'
            ],
            shouldNotGroupWhenFull: true
        },
        heading: {
            options: [
                { model: 'paragraph', title: 'Paragraphe', class: 'ck-heading_paragraph' },
                { model: 'heading1', view: 'h1', title: 'Titre 1', class: 'ck-heading_heading1' },
                { model: 'heading2', view: 'h2', title: 'Titre 2', class: 'ck-heading_heading2' },
                { model: 'heading3', view: 'h3', title: 'Titre 3', class: 'ck-heading_heading3' }
            ]
        },
        fontSize: {
            options: [
                'tiny', 'small', 'default', 'big', 'huge'
            ]
        },
        image: {
            toolbar: [
                'imageTextAlternative',
                'imageStyle:full',
                'imageStyle:side'
            ]
        },
        table: {
            contentToolbar: [
                'tableColumn',
                'tableRow',
                'mergeTableCells'
            ]
        }
    })
    .then(editor => {
        // Initialiser avec le contenu existant
        const existingContent = `{!! addslashes($post->content) !!}`;
        if (existingContent) {
            editor.setData(existingContent);
        }
        
        // Sauvegarder automatiquement le contenu
        editor.model.document.on('change:data', () => {
            const data = editor.getData();
            document.querySelector('#content').value = data;
        });
        
        // Stocker l'instance de l'éditeur globalement
        window.editorInstance = editor;
    })
    .catch(error => {
        console.error('Erreur lors de l\'initialisation de CKEditor:', error);
    });

// Fonction de duplication corrigée
function duplicatePost() {
    if (confirm('Voulez-vous créer une copie de cet article ?')) {
        // Sauvegarder le contenu CKEditor avant duplication
        if (window.editorInstance) {
            const data = window.editorInstance.getData();
            document.querySelector('#content').value = data;
        }
        
        const form = document.createElement('form');
        form.method = 'POST';
        form.action = '{{ route("admin.blog.duplicate", $post->id) }}';
        
        const csrfToken = document.createElement('input');
        csrfToken.type = 'hidden';
        csrfToken.name = '_token';
        csrfToken.value = '{{ csrf_token() }}';
        form.appendChild(csrfToken);
        
        document.body.appendChild(form);
        form.submit();
    }
}

// Fonction de suppression
function deletePost() {
    if (confirm('Êtes-vous sûr de vouloir supprimer cet article ? Cette action est irréversible.')) {
        const form = document.createElement('form');
        form.method = 'POST';
        // Dans les fonctions JavaScript, remplacer :
        form.action = '{{ route("admin.blog.duplicate", $post) }}';
        
        // Et :
        form.action = '{{ route("admin.blog.destroy", $post) }}';
        
        const csrfToken = document.createElement('input');
        csrfToken.type = 'hidden';
        csrfToken.name = '_token';
        csrfToken.value = '{{ csrf_token() }}';
        form.appendChild(csrfToken);
        
        const methodField = document.createElement('input');
        methodField.type = 'hidden';
        methodField.name = '_method';
        methodField.value = 'DELETE';
        form.appendChild(methodField);
        
        document.body.appendChild(form);
        form.submit();
    }
}

// Prévisualisation de l'image
document.getElementById('featured_image').addEventListener('change', function(e) {
    const file = e.target.files[0];
    if (file) {
        const reader = new FileReader();
        reader.onload = function(e) {
            let preview = document.getElementById('new-image-preview');
            if (!preview) {
                preview = document.createElement('img');
                preview.id = 'new-image-preview';
                preview.className = 'mt-2 w-full h-32 object-cover rounded';
                e.target.parentNode.appendChild(preview);
            }
            preview.src = e.target.result;
        };
        reader.readAsDataURL(file);
    }
});
</script>
@endsection