Function to link to the Discourse topic from a WordPress template?

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2

You can get the Discourse topic URL for a post with
get_post_meta( $post_id, 'discourse_permalink', true );

Something like this will work inside the loop (for example, in single.php)

<?php
$topic_url = get_post_meta( get_the_ID(), 'discourse_permalink', true );
$comments_number = get_comments_number();

switch ( $comments_number ) {
    case 0:
        $comment_link_text = 'Start the Conversation';
        break;
    case 1:
        $comment_link_text = '1 Comment';
        break;
    default:
        $comment_link_text = "$comments_number Comments";
}
?>

<a href="<?php echo esc_url( $topic_url ); ?>"><?php echo esc_html( $comment_link_text ); ?></a>
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