/**
 * Plugin Name: XPR Press Release JSON-LD + Tracking (MU)
 * Description: Outputs PR front + PR story JSON-LD and tracking for /press-release/ and /press-release/story/*.
 * Version: 1.0.0
 */

if (!defined('ABSPATH')) exit;

/**
 * Per-site configuration.
 * Add more hosts as needed.
 */
function xpr_pr_site_config(): array {
    return [

        'azcentral.xpr-gannett.com' => [
            'canonical_host' => 'azcentral.com',
            'publisher_name' => 'AZCentral | The Arizona Republic',
            'publisher_logo' => 'https://azcentral.com/sitelogos/m-oc.svg',
            'ispartof_name'  => 'AZCentral | The Arizona Republic - Unlimited Digital Access',
            'product_id'     => 'azcentral.com:standard',

            // Required front fields
            'front_thumbnail_url' => 'https://azcentral.xpr-gannett.com/wp-content/uploads/sites/43/2025/05/image-14.png',
            'front_date_published' => '2025-04-29T21:15:50+00:00',
        ],

        // Add more hosts here as needed
    ];
}

function xpr_current_host(): string {
    $host = $_SERVER['HTTP_HOST'] ?? '';
    $host = strtolower(trim($host));
    return preg_replace('/:\d+$/', '', $host);
}

function xpr_get_cfg(): array {
    $host = xpr_current_host();
    $map  = xpr_pr_site_config();
    return $map[$host] ?? [];
}

function xpr_to_canonical_url(string $url, array $cfg): string {
    if (empty($url) || empty($cfg['canonical_host'])) return $url;

    $host = xpr_current_host();
    return preg_replace(
        '#^https?://' . preg_quote($host, '#') . '#i',
        'https://' . $cfg['canonical_host'],
        $url
    );
}

function xpr_is_pr_front(): bool {
    $uri = $_SERVER['REQUEST_URI'] ?? '';
    $path = parse_url($uri, PHP_URL_PATH) ?: $uri;
    return rtrim($path, '/') === '/press-release';
}

function xpr_is_pr_story(): bool {
    if (!is_singular('post')) return false;
    $uri = $_SERVER['REQUEST_URI'] ?? '';
    $path = parse_url($uri, PHP_URL_PATH) ?: $uri;
    return (strpos($path, '/press-release/story/') !== false);
}

add_action('wp_head', function () {

    $cfg = xpr_get_cfg();

    // FRONT PAGE JSON-LD
    if (xpr_is_pr_front() && !empty($cfg)) {

        $front_url = xpr_to_canonical_url(home_url('/press-release/'), $cfg);

        $data = [
            '@context' => 'https://schema.org',
            '@type'    => 'WebPage',
            '@id'      => $front_url,
            'url'      => $front_url,
            'name'     => 'Press Release – ' . $cfg['publisher_name'],
            'primaryImageOfPage' => [
                '@id' => $front_url . '#primaryimage'
            ],
            'image' => [
                '@id' => $front_url . '#primaryimage'
            ],
            'thumbnailUrl'  => xpr_to_canonical_url($cfg['front_thumbnail_url'], $cfg),
            'datePublished' => $cfg['front_date_published'],
            'breadcrumb'    => [
                '@id' => $front_url . '#breadcrumb'
            ],
            'inLanguage' => 'en-US',
            'potentialAction' => [[
                '@type'  => 'ReadAction',
                'target' => [$front_url]
            ]],
            'keywords' => [
                'type:front',
                'ssts:press release'
            ],
            'isAccessibleForFree' => true,
            'isPartOf' => [
                '@type'     => ['CreativeWork', 'Product'],
                'name'      => $cfg['ispartof_name'],
                'productID' => $cfg['product_id']
            ],
            'publisher' => [
                '@type' => 'Organization',
                'name'  => $cfg['publisher_name'],
                'logo'  => $cfg['publisher_logo']
            ]
        ];

        echo '<script type="application/ld+json">' .
            wp_json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT) .
            '</script>';
    }

    // STORY PAGE JSON-LD + TRACKING
    if (xpr_is_pr_story() && !empty($cfg)) {

        $post_id   = get_the_ID();
        $title     = get_the_title($post_id);
        $permalink = xpr_to_canonical_url(get_permalink($post_id), $cfg);
        $thumb_raw = get_the_post_thumbnail_url($post_id, 'full');
        $thumb     = xpr_to_canonical_url($thumb_raw ?: '', $cfg);

        $jsonld = [
            '@context' => 'https://schema.org',
            '@type'    => 'NewsArticle',
            '@id'      => $permalink,
            'url'      => $permalink,
            'headline' => wp_strip_all_tags($title),
            'thumbnailUrl' => $thumb,
            'datePublished' => get_the_date(DATE_W3C, $post_id),
            'dateModified'  => get_the_modified_date(DATE_W3C, $post_id),
            'inLanguage' => 'en-US',
            'potentialAction' => [[
                '@type'  => 'ReadAction',
                'target' => [$permalink]
            ]],
            'articleSection' => 'press release',
            'publisher' => [
                '@type' => 'Organization',
                'name'  => $cfg['publisher_name'],
                'logo'  => [
                    '@type' => 'ImageObject',
                    'url'   => $cfg['publisher_logo']
                ]
            ],
            'author' => [
                '@type' => 'Organization',
                'name'  => 'pressadvantage'
            ],
            'keywords' => [
                'access:free',
                'ssts:press release',
                'type:story'
            ],
            'isAccessibleForFree' => true,
            'isPartOf' => [
                '@type'     => ['CreativeWork', 'Product'],
                'name'      => $cfg['ispartof_name'],
                'productID' => $cfg['product_id']
            ]
        ];

        echo '<script type="application/ld+json">' .
            wp_json_encode($jsonld, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT) .
            '</script>';
    }

}, 99);