/*
|--------------------------------------------------------------------------
| PURPOSE:
|--------------------------------------------------------------------------
| Lock premium content for pages, posts, and custom post types.
|
| WHAT THIS CODE DOES:
|--------------------------------------------------------------------------
| 1. Intercepts frontend content
| 2. Supports:
|    - posts
|    - pages
|    - custom post types
| 3. Checks purchase access
| 4. Shows locked message if no access
|--------------------------------------------------------------------------
*/

add_filter(
    'the_content',
    'trm_lock_premium_content'
);

function trm_lock_premium_content($content){

    // Skip admin dashboard
    if(is_admin()){
        return $content;
    }

    // Only frontend singular content
    if(!is_singular()){
        return $content;
    }

    // Allow administrators
    if(current_user_can('administrator')){
        return $content;
    }

    // Allow purchased users
    if(trm_user_has_course_access(get_the_ID())){

        return $content;

    }

    // Locked message
    return '

    <div style="
        border:2px solid #ff4d4d;
        padding:30px;
        margin:30px 0;
        background:#fff5f5;
    ">

        <h2>Premium Content</h2>

        <p>
            Please purchase this course to unlock this content.
        </p>

        <a href="/shop" style="
            display:inline-block;
            background:#0073aa;
            color:white;
            padding:12px 20px;
            text-decoration:none;
            border-radius:5px;
        ">
            Buy Course
        </a>

    </div>

    ';

}<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://therightmentor.com/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://therightmentor.com/wp-sitemap-posts-post-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-posts-chapter-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-posts-product-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-taxonomies-category-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-taxonomies-post_tag-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-taxonomies-level-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-taxonomies-tool-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-taxonomies-product_cat-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-taxonomies-product_tag-1.xml</loc></sitemap><sitemap><loc>https://therightmentor.com/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>