{% extends "base.html" %}

{% block title %}Create New Article - {{ super() }}{% endblock %}

{% block content %}
<div class="row mb-4">
    <div class="col-12">
        <nav aria-label="breadcrumb">
            <ol class="breadcrumb">
                <li class="breadcrumb-item"><a href="{{ url_for('main.index') }}">Home</a></li>
                <li class="breadcrumb-item"><a href="{{ url_for('admin.dashboard') }}">Admin</a></li>
                <li class="breadcrumb-item"><a href="{{ url_for('admin.article_list') }}">Articles</a></li>
                <li class="breadcrumb-item active" aria-current="page">Create New</li>
            </ol>
        </nav>
        <h1 class="mb-3">Create New Article</h1>
    </div>
</div>

<div class="row">
    <div class="col-12">
        <div class="card">
            <div class="card-body">
                <form method="POST" enctype="multipart/form-data">
                    <div class="row">
                        <div class="col-md-8">
                            <!-- HTML Upload/Input Section -->
                            <div class="mb-4">
                                <h5>Article Content</h5>
                                <p class="text-muted small">
                                    Upload an HTML file or paste HTML content. The HTML should follow schema.org Article markup.
                                    <a href="#" data-bs-toggle="modal" data-bs-target="#htmlFormatModal">View required format</a>
                                </p>

                                <div class="mb-3">
                                    <label for="html_file" class="form-label">Upload HTML File</label>
                                    <input type="file" class="form-control" id="html_file" name="html_file" accept=".html,.htm">
                                </div>

                                <div class="mb-3">
                                    <label class="form-label">Or paste HTML content</label>
                                    <textarea class="form-control" id="html_content" name="html_content" rows="15" placeholder="<article itemscope itemtype='https://schema.org/Article'>...">{{ html_content or '' }}</textarea>
                                </div>

                                <div class="alert alert-info">
                                    <i class="fas fa-info-circle me-2"></i>
                                    The HTML must contain:
                                    <ul class="mb-0 mt-2">
                                        <li><article itemscope itemtype="https://schema.org/Article"></li>
                                        <li><h1 itemprop="headline">Title</h1></li>
                                        <li><meta itemprop="datePublished" content="YYYY-MM-DD"></li>
                                        <li><meta itemprop="dateModified" content="YYYY-MM-DD"></li>
                                        <li><div itemprop="articleBody">...</div></li>
                                    </ul>
                                </div>
                            </div>

                            <!-- SEO Fields -->
                            <div class="mb-4">
                                <h5>SEO Settings</h5>
                                <div class="row">
                                    <div class="col-12 mb-3">
                                        <label for="title" class="form-label">Title *</label>
                                        <input type="text" class="form-control" id="title" name="title" required maxlength="500" value="{{ request.form.title or '' }}">
                                        <div class="form-text">Will be extracted from HTML if left blank</div>
                                    </div>

                                    <div class="col-12 mb-3">
                                        <label for="description" class="form-label">Meta Description</label>
                                        <textarea class="form-control" id="description" name="description" rows="2" maxlength="500">{{ request.form.description or '' }}</textarea>
                                        <div class="form-text">Brief description for search engines (120-160 characters recommended)</div>
                                    </div>

                                    <div class="col-12 mb-3">
                                        <label for="keywords" class="form-label">Meta Keywords</label>
                                        <input type="text" class="form-control" id="keywords" name="keywords" value="{{ request.form.keywords or '' }}">
                                        <div class="form-text">Comma-separated keywords</div>
                                    </div>

                                    <div class="col-12 mb-3">
                                        <label for="canonical_url" class="form-label">Canonical URL</label>
                                        <input type="url" class="form-control" id="canonical_url" name="canonical_url" value="{{ request.form.canonical_url or '' }}">
                                        <div class="form-text">Leave blank for self-canonicalization</div>
                                    </div>

                                    <div class="col-12 mb-3">
                                        <label for="excerpt" class="form-label">Excerpt</label>
                                        <textarea class="form-control" id="excerpt" name="excerpt" rows="3">{{ request.form.excerpt or '' }}</textarea>
                                        <div class="form-text">Short description for article cards (auto-extracted from first paragraph if blank)</div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <div class="col-md-4">
                            <!-- Author & Publisher -->
                            <div class="mb-4">
                                <h5>Author & Publisher</h5>
                                <div class="mb-3">
                                    <label for="author_name" class="form-label">Author Name</label>
                                    <input type="text" class="form-control" id="author_name" name="author_name" value="{{ request.form.author_name or '' }}">
                                </div>

                                <div class="mb-3">
                                    <label for="author_url" class="form-label">Author URL</label>
                                    <input type="url" class="form-control" id="author_url" name="author_url" value="{{ request.form.author_url or '' }}">
                                </div>

                                <div class="mb-3">
                                    <label for="publisher_name" class="form-label">Publisher Name</label>
                                    <input type="text" class="form-control" id="publisher_name" name="publisher_name" value="{{ request.form.publisher_name or config.SITE_NAME }}">
                                </div>

                                <div class="mb-3">
                                    <label for="publisher_url" class="form-label">Publisher URL</label>
                                    <input type="url" class="form-control" id="publisher_url" name="publisher_url" value="{{ request.form.publisher_url or config.SITE_URL }}">
                                </div>
                            </div>

                            <!-- Featured Image -->
                            <div class="mb-4">
                                <h5>Featured Image</h5>
                                <div class="mb-3">
                                    <label for="image_url" class="form-label">Image URL</label>
                                    <input type="url" class="form-control" id="image_url" name="image_url" value="{{ request.form.image_url or '' }}">
                                    <div class="form-text">URL to featured image for social sharing</div>
                                </div>
                            </div>

                            <!-- Publishing Options -->
                            <div class="mb-4">
                                <h5>Publishing</h5>
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" id="is_published" name="is_published" value="true" checked>
                                    <label class="form-check-label" for="is_published">Publish immediately</label>
                                </div>
                            </div>

                            <!-- Submit -->
                            <div class="d-grid gap-2">
                                <button type="submit" class="btn btn-primary btn-lg">
                                    <i class="fas fa-save me-1"></i> Create Article
                                </button>
                                <a href="{{ url_for('admin.article_list') }}" class="btn btn-outline-secondary">Cancel</a>
                            </div>
                        </div>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>

<!-- HTML Format Modal -->
<div class="modal fade" id="htmlFormatModal" tabindex="-1" aria-labelledby="htmlFormatModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="htmlFormatModalLabel">Required HTML Format</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body">
                <pre class="bg-light p-3 rounded"><code><article itemscope itemtype="https://schema.org/Article">
    <header>
        <h1 itemprop="headline">Article Title</h1>
        <meta itemprop="datePublished" content="2026-03-24">
        <meta itemprop="dateModified" content="2026-03-24">
    </header>

    <div itemprop="articleBody">
        <h2>Section Title</h2>
        <p>Article content...</p>
        <h3>Subsection</h3>
        <ul>
            <li>List item</li>
        </ul>
    </div>
</article></code></pre>
                <p class="mt-3">The HTML should be a complete article with proper schema.org markup for best SEO results.</p>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_scripts %}
<script>
// Auto-extract SEO fields from HTML content using DOMParser
function extractSEOFromHTML(html) {
    const results = {
        title: null,
        description: null,
        keywords: null,
        canonical_url: null
    };
    
    try {
        // Parse HTML string into a DOM
        const parser = new DOMParser();
        const doc = parser.parseFromString(html, 'text/html');
        
        // Extract title from h1 with itemprop="headline"
        const h1 = doc.querySelector('h1[itemprop="headline"]');
        if (h1) {
            results.title = h1.textContent.trim();
        }
        
        // Extract meta description (prefer itemprop="description", fallback to name="description")
        const descMeta = doc.querySelector('meta[itemprop="description"], meta[name="description"]');
        if (descMeta) {
            results.description = descMeta.getAttribute('content')?.trim() || null;
        }
        
        // Extract meta keywords
        const keywordsMeta = doc.querySelector('meta[name="keywords"]');
        if (keywordsMeta) {
            results.keywords = keywordsMeta.getAttribute('content')?.trim() || null;
        }
        
        // Extract canonical URL
        const canonicalLink = doc.querySelector('link[rel="canonical"]');
        if (canonicalLink) {
            results.canonical_url = canonicalLink.getAttribute('href')?.trim() || null;
        }
    } catch (e) {
        console.error('Error parsing HTML for SEO extraction:', e);
    }
    
    return results;
}

// Auto-populate fields when HTML content changes
document.getElementById('html_content')?.addEventListener('input', function() {
    const html = this.value;
    const seoData = extractSEOFromHTML(html);
    
    // Only auto-populate if field is empty
    if (seoData.title && !document.getElementById('title').value) {
        document.getElementById('title').value = seoData.title;
    }
    if (seoData.description && !document.getElementById('description').value) {
        document.getElementById('description').value = seoData.description;
    }
    if (seoData.keywords && !document.getElementById('keywords').value) {
        document.getElementById('keywords').value = seoData.keywords;
    }
    if (seoData.canonical_url && !document.getElementById('canonical_url').value) {
        document.getElementById('canonical_url').value = seoData.canonical_url;
    }
});

// File upload handler
document.getElementById('html_file')?.addEventListener('change', function(e) {
    const file = e.target.files[0];
    if (file) {
        const reader = new FileReader();
        reader.onload = function(e) {
            document.getElementById('html_content').value = e.target.result;
            // Trigger input event to auto-extract SEO fields
            document.getElementById('html_content').dispatchEvent(new Event('input'));
        };
        reader.readAsText(file);
    }
});
</script>
{% endblock %}