<?php

if (!defined('ABSPATH')) {
    exit;
}

/**
 * Returns a sanitized text value from a wizard form submission.
 *
 * @param string $key     Form field name.
 * @param string $default Value to return when the field is absent or invalid.
 * @return string
 */
function postexketab_get_wizard_post_text($key, $default = '')
{
    if (!isset($_POST[$key]) || !is_string($_POST[$key])) {
        return $default;
    }

    return sanitize_text_field(wp_unslash($_POST[$key]));
}

/**
 * Returns a non-negative monetary value from a wizard form submission.
 *
 * @param string $key     Form field name.
 * @param int    $default Value to return when the field is absent or invalid.
 * @return int
 */
function postexketab_get_wizard_post_price($key, $default = 0)
{
    if (!isset($_POST[$key]) || !is_string($_POST[$key])) {
        return postexketab_sanitize_price($default);
    }

    return postexketab_sanitize_price(wp_unslash($_POST[$key]));
}

// Wizard API key
add_action('wp_ajax_postex_panel_login', 'postexketab_panel_login');
function postexketab_panel_login()
{
    check_ajax_referer('postex_general_nonce', 'nonce');
    postexketab_require_shop_manager();

    $username = trim(postexketab_get_wizard_post_text('username'));
    $password = postexketab_get_wizard_post_text('password');
    if ($username === '' || $password === '') {
        wp_send_json_error(['message' => 'نام کاربری و رمز عبور را وارد کنید.']);
    }

    // Keep credentials and tokens out of the general request logger.
    $response = wp_remote_post(POSTEXKETAB_API_PATH . '/shipping/token', [
        'headers' => ['Content-Type' => 'application/json', 'Accept' => 'application/json'],
        'body' => wp_json_encode([
            'username' => $username,
            'password' => $password,
            'regenerate' => false,
        ]),
        'timeout' => 30,
        'redirection' => 0,
    ]);
    if (is_wp_error($response)) {
        wp_send_json_error(['message' => 'ارتباط با پنل خانه کتاب برقرار نشد. دوباره تلاش کنید.']);
    }

    $status = wp_remote_retrieve_response_code($response);
    $body = json_decode(wp_remote_retrieve_body($response), true);
    if ($status < 200 || $status >= 300 || !is_array($body) || ($body['IsSuccess'] ?? false) !== true) {
        $message = is_array($body) && isset($body['Message']) && is_string($body['Message'])
            ? sanitize_text_field($body['Message']) : 'دریافت کلید از پنل خانه کتاب ناموفق بود.';
        wp_send_json_error(['message' => $message]);
    }
    $data = $body['Data'] ?? null;
    if (!is_array($data) || ($data['IsEnabled'] ?? false) !== true) {
        wp_send_json_error(['message' => 'حساب ارسال پنل خانه کتاب فعال نیست.']);
    }
    $api_key = $data['ApiKey'] ?? $data['Token'] ?? '';
    if (!is_string($api_key) || trim($api_key) === '') {
        wp_send_json_error(['message' => 'کلید API در پاسخ پنل خانه کتاب موجود نیست.']);
    }

    // The token endpoint has authenticated this key; skip a second validation request.
    $priority = has_filter('sanitize_option_postex_api_key', 'postexketab_validate_api_key');
    if ($priority !== false) {
        remove_filter('sanitize_option_postex_api_key', 'postexketab_validate_api_key', $priority);
    }
    $api_key = trim($api_key);
    update_option('postex_api_key', $api_key);
    if ($priority !== false) {
        add_filter('sanitize_option_postex_api_key', 'postexketab_validate_api_key', $priority);
    }
    if (get_option('postex_api_key') !== $api_key) {
        wp_send_json_error(['message' => 'ذخیره کلید API انجام نشد. دوباره تلاش کنید.']);
    }
    update_option('postex_api_key_valid', 'yes');
    update_option('postex_shipping_enabled', 'yes');
    delete_transient('postex_api_key_error');
    wp_send_json_success(['redirect' => admin_url('admin.php?page=postexketab-setup&step=zones')]);
}

add_action('admin_post_postex_save_wizard_api_key', 'postexketab_save_wizard_api_key');
function postexketab_save_wizard_api_key()
{
    if (!current_user_can('manage_woocommerce')) {
        wp_die('دسترسی غیر مجاز');
    }

    check_admin_referer('postex_save_wizard_api_key', 'postex_nonce');

    $api_key = postexketab_get_wizard_post_text('postex_api_key');

    update_option('postex_api_key', $api_key);

    $next_step = get_option('postex_api_key_valid') === 'yes' ? 'zones' : 'api';

    wp_safe_redirect(admin_url('admin.php?page=postexketab-setup&step=' . $next_step));
    exit;
}


//Wizard Fixed
add_action('admin_post_postex_save_fixed_settings', 'postexketab_save_fixed_settings');
function postexketab_save_fixed_settings()
{
    if (!current_user_can('manage_woocommerce')) {
        wp_die('Access denied');
    }

    $nonce = postexketab_get_wizard_post_text('postex_nonce');
    if ($nonce === '' || !wp_verify_nonce($nonce, 'postex_general_nonce')) {wp_die('Invalid nonce');}

    // Normal delivery
    update_option('postex_normal_delivery_status', postexketab_get_wizard_post_text('postex_normal_delivery_status'));

    update_option(
        'postex_normal_delivery_label',
        postexketab_get_wizard_post_text('postex_normal_delivery_label')
    );

    update_option(
        'postex_normal_delivery_price',
        postexketab_get_wizard_post_price('postex_normal_delivery_price', 1000000)
    );

    // Fast delivery
    update_option('postex_fast_delivery_status', postexketab_get_wizard_post_text('postex_fast_delivery_status'));

    update_option(
        'postex_fast_delivery_label',
        postexketab_get_wizard_post_text('postex_fast_delivery_label')
    );

    update_option(
        'postex_fast_delivery_price',
        postexketab_get_wizard_post_price('postex_fast_delivery_price', 500000)
    );


    wp_safe_redirect(admin_url('admin.php?page=postexketab-setup&step=free'));
    exit;
}


//Wizard Free
add_action('admin_post_postex_save_free_settings', 'postexketab_save_free_settings');
function postexketab_save_free_settings() {

    if (!current_user_can('manage_woocommerce')) {
        wp_die('دسترسی غیر مجاز');
    }

    check_admin_referer('postex_general_nonce');


    update_option('postex_free_shipping_status', postexketab_get_wizard_post_text('postex_free_shipping_status', 'off'));
    update_option('postex_free_shipping_label', postexketab_get_wizard_post_text('postex_free_shipping_label'));
    update_option('postex_free_shipping_amount', postexketab_get_wizard_post_price('postex_free_shipping_amount'));

    update_option('postex_in_town_state', postexketab_get_wizard_post_text('postex_in_town_state'));
    update_option('postex_in_town_city', postexketab_get_wizard_post_text('postex_in_town_city'));
    update_option('postex_in_town_city_label', postexketab_get_wizard_post_text('postex_in_town_city_label'));


    update_option('postex_free_shipping_status_suburban', postexketab_get_wizard_post_text('postex_free_shipping_status_suburban', 'off'));
    update_option('postex_free_shipping_label_suburban', postexketab_get_wizard_post_text('postex_free_shipping_label_suburban'));
    update_option('postex_free_shipping_amount_suburban', postexketab_get_wizard_post_price('postex_free_shipping_amount_suburban'));

    wp_safe_redirect(
        admin_url('admin.php?page=postexketab-setup&step=defaults')
    );
    exit;
}

//Wizard defaults
add_action('admin_post_postex_save_defaults_settings', 'postexketab_save_defaults_settings');
function postexketab_save_defaults_settings() {
    if ( ! current_user_can('manage_woocommerce') ) {
        wp_die('دسترسی غیر مجاز');
    }
    check_admin_referer('postex_general_nonce');
    update_option('postex_default_payment', postexketab_get_wizard_post_text('postex_default_payment'));
    update_option('postex_default_shipping_method', postexketab_get_wizard_post_text('postex_default_shipping_method'));
    update_option('postex_default_collect_type', postexketab_get_wizard_post_text('postex_default_collect_type'));

    $additional = postexketab_value_added_services_enabled() && is_array($_POST['postex_default_additional'] ?? null)
        ? postexketab_sanitize_array_recursive(wp_unslash($_POST['postex_default_additional']))
        : [];
    update_option('postex_default_additional', $additional);
    update_option('postex_default_box', postexketab_get_wizard_post_text('postex_default_box'));
    wp_safe_redirect(admin_url('admin.php?page=postexketab-setup&step=done'));
    exit;
}