{# 
    Reusable meta tags include for SEO and social media.
    
    Parameters:
    - item: The content object (post or page)
    - content_type: "article" or "website"
    - include_keywords: Boolean to include keywords meta tag (default: false)
    - include_article_tags: Boolean to include article-specific OG tags (default: false)
#}

{# Set default values for optional parameters #}
{% set include_keywords = include_keywords | default(false) %}
{% set include_article_tags = include_article_tags | default(false) %}

{# Standard SEO meta tags #}
{% if item.metadata and item.metadata.get('author') %}
<meta name="author" content="{{ item.metadata.get('author') }}">
{% endif %}
{% if item.description %}
<meta name="description" content="{{ item.description }}">
{% endif %}
{% if include_keywords and item.tags %}
<meta name="keywords" content="{{ item.tags|join(', ') }}">
{% endif %}

{# Open Graph meta tags #}
<meta property="og:title" content="{{ item.title }}">
<meta property="og:type" content="{{ content_type }}">
<meta property="og:url" content="{{ site_url }}{{ item.url }}">
{% if item.description %}
<meta property="og:description" content="{{ item.description }}">
{% endif %}
<meta property="og:site_name" content="{{ site_title }}">
{% if item.metadata and item.metadata.get('cover') %}
{% set cover_url = item.metadata.get('cover') %}
{% if cover_url.startswith('http://') or cover_url.startswith('https://') %}
<meta property="og:image" content="{{ cover_url }}">
{% elif cover_url.startswith('/') %}
<meta property="og:image" content="{{ site_url }}{{ cover_url }}">
{% else %}
<meta property="og:image" content="{{ site_url }}/{{ cover_url }}">
{% endif %}
{% endif %}

{# Article-specific Open Graph tags #}
{% if include_article_tags %}
{% if item.date %}
<meta property="article:published_time" content="{{ item.date.isoformat() }}">
{% endif %}
{% if item.metadata and item.metadata.get('modified') %}
<meta property="article:modified_time" content="{{ item.metadata.get('modified') }}">
{% elif item.date %}
<meta property="article:modified_time" content="{{ item.date.isoformat() }}">
{% endif %}
{% if item.metadata and item.metadata.get('author') %}
<meta property="article:author" content="{{ item.metadata.get('author') }}">
{% endif %}
{% if item.category %}
<meta property="article:section" content="{{ item.category }}">
{% endif %}
{% if item.tags %}
{% for tag in item.tags %}
<meta property="article:tag" content="{{ tag }}">
{% endfor %}
{% endif %}
{% endif %}

{# Twitter Card meta tags #}
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="{{ item.title }}">
{% if item.description %}
<meta name="twitter:description" content="{{ item.description }}">
{% endif %}
{% if item.metadata and item.metadata.get('cover') %}
{% set cover_url = item.metadata.get('cover') %}
{% if cover_url.startswith('http://') or cover_url.startswith('https://') %}
<meta name="twitter:image" content="{{ cover_url }}">
{% elif cover_url.startswith('/') %}
<meta name="twitter:image" content="{{ site_url }}{{ cover_url }}">
{% else %}
<meta name="twitter:image" content="{{ site_url }}/{{ cover_url }}">
{% endif %}
{% endif %}
{% if item.metadata and item.metadata.get('twitter_creator') %}
<meta name="twitter:creator" content="{{ item.metadata.get('twitter_creator') }}">
{% endif %}
{% if item.metadata and item.metadata.get('twitter_site') %}
<meta name="twitter:site" content="{{ item.metadata.get('twitter_site') }}">
{% endif %}