<?php
if (!defined('ABSPATH')) { exit; }

function lwek_privacy_records($email, $page = 1) {
    if (!is_email($email)) { return []; }
    return get_posts([
        'post_type' => 'alai_pdf_lead', 'post_status' => array_values(get_post_stati()),
        'posts_per_page' => 50, 'paged' => max(1, (int) $page),
        // phpcs:ignore WordPressVIPMinimum.Performance.WPQueryParams.SuppressFilters_suppress_filters -- Privacy requests must include records from every language.
        'orderby' => 'ID', 'order' => 'ASC', 'suppress_filters' => true,
        'meta_key' => '_alai_email', 'meta_value' => $email,
    ]);
}

function lwek_privacy_export($email, $page = 1) {
    $records = lwek_privacy_records($email, $page);
    $data = [];
    $fields = [
        'name' => __('Name', 'fucuo-elements'),
        'email' => __('Email', 'fucuo-elements'),
        'company' => __('Company', 'fucuo-elements'),
        'phone' => __('Phone', 'fucuo-elements'),
        'book_title' => __('Publication', 'fucuo-elements'),
        'consent' => __('Consent text', 'fucuo-elements'),
        'consent_version' => __('Consent version', 'fucuo-elements'),
        'downloaded' => __('Download started', 'fucuo-elements'),
    ];
    foreach ($records as $record) {
        $values = [];
        foreach ($fields as $key => $label) {
            $values[] = ['name' => $label, 'value' => (string) get_post_meta($record->ID, '_alai_' . $key, true)];
        }
        $values[] = ['name' => __('Submitted (site time)', 'fucuo-elements'), 'value' => $record->post_date];
        $data[] = ['group_id' => 'fucuo-pdf-requests', 'group_label' => __('PDF download requests', 'fucuo-elements'), 'item_id' => 'fucuo-lead-' . $record->ID, 'data' => $values];
    }
    return ['data' => $data, 'done' => count($records) < 50];
}

function lwek_privacy_erase($email, $page = 1) {
    // Always take the first remaining batch: successful deletions shift the result set.
    $records = lwek_privacy_records($email, 1);
    $removed = false;
    $retained = false;
    foreach ($records as $record) {
        if (wp_delete_post($record->ID, true)) { $removed = true; }
        else { $retained = true; }
    }
    return [
        'items_removed' => $removed, 'items_retained' => $retained,
        'messages' => $retained ? [__('Some PDF download records could not be deleted. Please contact the site administrator.', 'fucuo-elements')] : [],
        'done' => $retained || count($records) < 50,
    ];
}

add_filter('wp_privacy_personal_data_exporters', function ($exporters) {
    $exporters['fucuo-elements'] = ['exporter_friendly_name' => 'FUCUO Elements', 'callback' => 'lwek_privacy_export'];
    return $exporters;
});
add_filter('wp_privacy_personal_data_erasers', function ($erasers) {
    $erasers['fucuo-elements'] = ['eraser_friendly_name' => 'FUCUO Elements', 'callback' => 'lwek_privacy_erase'];
    return $erasers;
});
add_action('admin_init', function () {
    if (function_exists('wp_add_privacy_policy_content')) {
        wp_add_privacy_policy_content('FUCUO Elements', wpautop(esc_html__(
            'When visitors request a PDF download, this site stores their name, email, optional company and phone, requested publication, consent text and submission/download time. Records are stored in this site database until an administrator removes them; set and disclose an appropriate retention period. No contact details are sent to the plugin developer. A hashed IP identifier is cached for ten minutes to limit submissions, and a random download token is cached for fifteen minutes. These cache entries may remain until cache cleanup. Administrators can export or erase contact records using the WordPress privacy tools. Public media-library PDFs are not protected by this form. Review and adapt this suggested text to your site practices.',
            'fucuo-elements'
        )));
    }
});