<?php
/**
 * Plugin Name: Asterion — WPML debug helpers
 * Description: Read-only URL handlers to inspect WPML state. Localhost only.
 *  - /?av_wpml_status=1           → active languages, default language
 *  - /?av_wpml_translations=ID    → translations for a given post id
 */
defined('ABSPATH') || exit;

add_action('init', function () {
    if (! in_array($_SERVER['SERVER_NAME'] ?? '', ['localhost', '127.0.0.1'], true)) return;

    if (! empty($_GET['av_wpml_status'])) {
        av_wpml_status();
    } elseif (! empty($_GET['av_wpml_translations'])) {
        av_wpml_translations((int) $_GET['av_wpml_translations']);
    }
});

function av_wpml_status() {
    header('Content-Type: text/plain; charset=utf-8');

    $active = apply_filters('wpml_active_languages', null, []);
    $default = apply_filters('wpml_default_language', null);
    $current = apply_filters('wpml_current_language', null);
    $setup = get_option('icl_sitepress_settings');

    echo "WPML active : " . (function_exists('wpml_loaded') ? 'YES' : '?') . "\n";
    echo "Default lang: $default\n";
    echo "Current lang: $current\n";
    echo "\nActive languages:\n";
    foreach ((array) $active as $lc => $l) {
        echo "  $lc  " . ($l['display_name'] ?? '') . "  url=" . ($l['url'] ?? '') . "\n";
    }
    echo "\nURL strategy: " . ($setup['language_negotiation_type'] ?? '?') . " (1=lang in dir, 2=domain, 3=lang param)\n";
    echo "Hidden langs: " . implode(',', $setup['hidden_languages'] ?? []) . "\n";
    exit;
}

function av_wpml_translations($post_id) {
    header('Content-Type: text/plain; charset=utf-8');

    $type    = get_post_type($post_id);
    $title   = get_the_title($post_id);
    $element = 'post_' . $type;
    $trid    = apply_filters('wpml_element_trid', null, $post_id, $element);
    $translations = apply_filters('wpml_get_element_translations', null, $trid, $element);

    echo "Post #$post_id (type=$type) : \"$title\"\n";
    echo "trid: " . ($trid ?? 'null') . "\n\n";
    echo "Translations:\n";
    foreach ((array) $translations as $lc => $t) {
        $tid   = $t->element_id ?? '?';
        $name  = $t->post_title ?? '?';
        $slug  = get_post($tid)->post_name ?? '?';
        echo "  [$lc] id=$tid slug=$slug title=\"$name\"\n";
    }
    exit;
}