@extends('layouts.app')

@section('content')
<div class="main-content">
    <div class="page-content">
        <div class="container-fluid">
            <div class="row">
                <div class="col-12">
                    <div class="page-title-box d-sm-flex align-items-center justify-content-between">
                        <h4 class="mb-sm-0 font-size-18">Edit Article</h4>
                    </div>
                </div>
            </div>

            <!-- Display Success/Error Messages -->
            @if(session('success'))
                <div class="alert alert-success alert-dismissible fade show" role="alert">
                    {{ session('success') }}
                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                </div>
            @endif

            @if(session('error'))
                <div class="alert alert-danger alert-dismissible fade show" role="alert">
                    {{ session('error') }}
                    <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                </div>
            @endif

            <div class="row">
                <div class="col-lg-12">
                    <div class="card">
                        <div class="card-body">
                            <form action="{{ route('articles.update', $article->id) }}" method="POST" enctype="multipart/form-data" id="article-form">
                                @csrf
                                @method('PUT')

                                <!-- Blog Title -->
                                <div class="mb-3">
                                    <label for="title" class="form-label">Blog Title</label>
                                    <input type="text" class="form-control @error('title') is-invalid @enderror" id="title" name="title" value="{{ old('title', $article->title) }}" required>
                                    @error('title')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                </div>

                                <!-- Slug -->
                              <!-- Slug -->
                              <div class="mb-3">
                                  <label for="slug" class="form-label">Slug</label>
                                  <input type="text" class="form-control @error('slug') is-invalid @enderror" id="slug" name="slug" value="{{ old('slug', $article->slug) }}" readonly>
                                  @error('slug')
                                  <span class="invalid-feedback" role="alert">
                                      <strong>{{ $message }}</strong>
                                  </span>
                                  @enderror
                             </div>

                                <!-- Blog Images -->
                                <div class="mb-3">
                                    <label for="images" class="form-label">Blog Images</label>
                                    <input type="file" class="form-control @error('images') is-invalid @enderror" id="images" name="images[]" multiple>
                                    @error('images')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                    <div id="image-preview" class="mt-2">
                                        @foreach($article->images as $image)
                                            <div class="image-container" style="position: relative; display: inline-block; margin: 5px;">
                                                <img src="{{ asset('../../admin/storage/app/public/' . $image->image_path) }}" alt="Article Image" style="width: 100px; height: 100px;">
                                                <button type="button" class="btn btn-danger btn-sm remove-image" style="position: absolute; top: 0; right: 0;" data-image-id="{{ $image->id }}">
                                                    <i class="fas fa-times"></i>
                                                </button>
                                            </div>
                                        @endforeach
                                    </div>
                                </div>

                                <!-- Hidden field to store deleted image IDs -->
                                <input type="hidden" name="deleted_images" id="deleted_images">

                                <!-- Meta Keywords -->
                                <div class="mb-3">
                                    <label for="meta_keywords" class="form-label">Meta Keywords</label>
                                    <input type="text" class="form-control @error('meta_keywords') is-invalid @enderror" id="meta_keywords" name="meta_keywords" value="{{ old('meta_keywords', $article->meta_keywords) }}">
                                    @error('meta_keywords')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                </div>

                                <!-- Excerpt -->
                                <div class="mb-3">
                                    <label for="excerpt" class="form-label">Excerpt</label>
                                    <textarea class="form-control @error('excerpt') is-invalid @enderror" id="excerpt" name="excerpt" rows="3">{{ old('excerpt', $article->excerpt) }}</textarea>
                                    @error('excerpt')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                </div>

                                <!-- Blog Content -->
                                <div class="mb-3">
                                    <label for="content" class="form-label">Blog Content</label>
                                    <textarea class="form-control @error('content') is-invalid @enderror" id="content" name="content" rows="10">{{ old('content', $article->content) }}</textarea>
                                    @error('content')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                </div>

                                <!-- Category -->
                                <div class="mb-3">
                                    <label for="category_id" class="form-label">Category</label>
                                    <select class="form-control @error('category_id') is-invalid @enderror" id="category_id" name="category_id" required>
                                        <option value="">Select Category</option>
                                        @foreach($categories as $category)
                                            <option value="{{ $category->id }}" {{ old('category_id', $article->category_id) == $category->id ? 'selected' : '' }}>{{ $category->name }}</option>
                                        @endforeach
                                    </select>
                                    @error('category_id')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                </div>

                                <!-- Author -->
                                <div class="mb-3">
                                    <label for="author_id" class="form-label">Author</label>
                                    <select class="form-control @error('author_id') is-invalid @enderror" id="author_id" name="author_id" required>
                                        <option value="">Select Author</option>
                                        @foreach($authors as $author)
                                            <option value="{{ $author->id }}" {{ old('author_id', $article->author_id) == $author->id ? 'selected' : '' }}>{{ $author->name }}</option>
                                        @endforeach
                                    </select>
                                    @error('author_id')
                                        <span class="invalid-feedback" role="alert">
                                            <strong>{{ $message }}</strong>
                                        </span>
                                    @enderror
                                </div>

                                <!-- Submit Button -->
                                <button type="submit" class="btn btn-primary">Update Article</button>
                                <a href="{{ route('articles.index') }}" class="btn btn-secondary">Cancel</a>
                            </form>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Include TinyMCE -->
<script src="https://cdn.tiny.cloud/1/9yner0anfqzwxco8083yg5sl2uy6imv3b902pz5thj3r1wgp/tinymce/6/tinymce.min.js" referrerpolicy="origin"></script>
<script>
    // Initialize TinyMCE
    tinymce.init({
        selector: '#content', // Target the textarea with id="content"
        plugins: 'autolink lists link image charmap preview anchor',
        toolbar: 'undo redo | styleselect | bold italic | alignleft aligncenter alignright alignjustify | outdent indent',
        height: 300, // Set the height of the editor
        menubar: false, // Disable the menu bar
        setup: function (editor) {
            editor.on('change', function () {
                editor.save(); // Save the content back to the textarea
            });
        }
    });
    document.addEventListener('DOMContentLoaded', function () {
    const titleInput = document.getElementById('title');
    const slugInput = document.getElementById('slug');

    titleInput.addEventListener('blur', function () {
        const title = titleInput.value;

        // Generate base slug
        let slug = title.toLowerCase()
            .trim()
            .replace(/ /g, '_') // Replace spaces with underscores
            .replace(/[^a-z0-9_]/g, '_') // Replace special characters with hyphens
            .replace(/-+/g, '_') // Replace multiple hyphens with a single hyphen
            .replace(/_+/g, '_') // Replace multiple underscores with a single underscore
            .replace(/^[-_]+|[-_]+$/g, ''); // Remove leading/trailing hyphens or underscores

        if (!slug) return; // Skip if slug is empty

        // Check slug uniqueness
        checkSlugUniqueness(slug);
    });

    function checkSlugUniqueness(baseSlug, suffix = 0) {
        const candidateSlug = suffix > 0 ? `${baseSlug}_${suffix}` : baseSlug;

        fetch('{{ route("articles.check-slug") }}', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'X-CSRF-TOKEN': '{{ csrf_token() }}' // Include CSRF token
            },
            body: JSON.stringify({ slug: candidateSlug, articleId: '{{ $article->id ?? "" }}' }) // Include articleId for edit scenario
        })
        .then(response => response.json())
        .then(data => {
            if (data.exists) {
                // If slug exists, increment suffix and check again
                checkSlugUniqueness(baseSlug, suffix + 1);
            } else {
                // If slug is unique, set the value
                slugInput.value = candidateSlug;
            }
        })
        .catch(error => {
            console.error('Error checking slug uniqueness:', error);
        });
    }
});
    // Image Preview
    document.getElementById('images').addEventListener('change', function (event) {
        const preview = document.getElementById('image-preview');
        preview.innerHTML = '';
        const files = event.target.files;

        for (let i = 0; i < files.length; i++) {
            const file = files[i];
            const reader = new FileReader();

            reader.onload = function (e) {
                const img = document.createElement('img');
                img.src = e.target.result;
                img.style.width = '100px';
                img.style.height = '100px';
                img.style.margin = '5px';
                preview.appendChild(img);
            };

            reader.readAsDataURL(file);
        }
    });

    // Remove Image
    document.querySelectorAll('.remove-image').forEach(button => {
        button.addEventListener('click', function () {
            const imageId = this.getAttribute('data-image-id');
            const deletedImagesInput = document.getElementById('deleted_images');
            let deletedImages = deletedImagesInput.value ? deletedImagesInput.value.split(',') : [];

            // Add the image ID to the deleted images list
            if (!deletedImages.includes(imageId)) {
                deletedImages.push(imageId);
                deletedImagesInput.value = deletedImages.join(',');
            }

            // Remove the image container from the DOM
            this.closest('.image-container').remove();
        });
    });
</script>
@endsection