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

/**
 * Pantalla de ajustes (menú "Ailoquence"). Los textos de pasos y etiquetas ("Public Key",
 * "Secret", "Store Public Key", "Store Secret", "Connect my store automatically") coinciden a
 * propósito con los que usa la app de Ailoquence en sus instrucciones (i18n pc.wp.step.* /
 * pc.woo.step.*) — si se renombran aquí, renombrarlos también allí.
 */
add_action('admin_menu', function () {
  $icon_path = plugin_dir_path(__FILE__) . '../assets/logo.svg';
  $icon = 'dashicons-admin-links';

  if (file_exists($icon_path)) {
    // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- local file bundled with the plugin.
    $icon = 'data:image/svg+xml;base64,' . base64_encode(file_get_contents($icon_path));
  }

  add_menu_page(
    __('Ailoquence Connector', 'ailoquence-connector'),
    'Ailoquence',
    'manage_options',
    'ailoquence-connector',
    'ailoquence_render_settings_page',
    $icon,
    58
  );
});

add_action('admin_init', 'ailoquence_handle_settings_actions');

function ailoquence_handle_settings_actions() {
  if (!current_user_can('manage_options')) return;

  if (isset($_POST['ailoquence_save'])) {
    check_admin_referer('ailoquence_save_action');

    $opt = ailoquence_get_options();
    $opt['enabled'] = !empty($_POST['ailoquence_enabled']) ? 1 : 0;

    $raw_ips = isset($_POST['ailoquence_allowed_ips']) ? sanitize_text_field(wp_unslash($_POST['ailoquence_allowed_ips'])) : '';
    list($opt['allowed_ips'], $discarded) = ailoquence_sanitize_ip_list($raw_ips);

    // El desplegable solo ofrece usuarios que pueden publicar, pero se revalida por si el POST
    // llega manipulado: un ID que no puede publicar se ignora y se mantiene el autor anterior.
    $author_id = isset($_POST['ailoquence_author_id']) ? absint(wp_unslash($_POST['ailoquence_author_id'])) : 0;
    if ($author_id > 0 && user_can($author_id, 'publish_posts')) {
      $opt['author_id'] = $author_id;
    }

    update_option(AILOQUENCE_CONNECTOR_OPTION, $opt);
    add_settings_error('ailoquence_msgs', 'ailoquence_saved', __('Settings saved.', 'ailoquence-connector'), 'updated');

    if ($discarded > 0) {
      add_settings_error('ailoquence_msgs', 'ailoquence_ips_discarded', __('Some entries in "Allowed IPs" were ignored because they are not valid IP addresses.', 'ailoquence-connector'), 'warning');
    }
  }

  if (isset($_POST['ailoquence_regen'])) {
    check_admin_referer('ailoquence_regen_action');

    update_option(AILOQUENCE_CONNECTOR_OPTION, array_merge(ailoquence_get_options(), ailoquence_generate_blog_credentials()));
    add_settings_error('ailoquence_msgs', 'ailoquence_regen', __('New credentials generated. Paste the new Public Key and Secret into your blog settings in Ailoquence — publishing will not work until you do.', 'ailoquence-connector'), 'warning');
  }

  if (isset($_POST['ailoquence_connect_store'])) {
    check_admin_referer('ailoquence_connect_store_action');

    $result = ailoquence_connect_store();
    if (is_wp_error($result)) {
      add_settings_error('ailoquence_msgs', 'ailoquence_store_error', $result->get_error_message(), 'error');
    } else {
      add_settings_error('ailoquence_msgs', 'ailoquence_store_ok', __('Your store is now connected to Ailoquence.', 'ailoquence-connector'), 'updated');
    }
  }

  if (isset($_POST['ailoquence_disconnect_store'])) {
    check_admin_referer('ailoquence_disconnect_store_action');

    ailoquence_disconnect_store();
    add_settings_error('ailoquence_msgs', 'ailoquence_store_disconnect', __('Store disconnected. The WooCommerce API key used by Ailoquence has been revoked, so Ailoquence can no longer access your products. If you no longer need it, also remove the store from your project in Ailoquence.', 'ailoquence-connector'), 'updated');
  }

  if (isset($_POST['ailoquence_save_newsletter'])) {
    check_admin_referer('ailoquence_save_newsletter_action');

    $result = ailoquence_set_newsletter_enabled(!empty($_POST['ailoquence_newsletter_enabled']));
    if (is_wp_error($result)) {
      add_settings_error('ailoquence_msgs', 'ailoquence_newsletter_error', $result->get_error_message(), 'error');
    } else {
      add_settings_error('ailoquence_msgs', 'ailoquence_newsletter_saved', __('Email alert settings saved.', 'ailoquence-connector'), 'updated');
    }
  }

  if (isset($_POST['ailoquence_regen_store'])) {
    check_admin_referer('ailoquence_regen_store_action');

    ailoquence_update_store_options(array_merge(ailoquence_get_store_options(), ailoquence_generate_store_credentials()));
    add_settings_error('ailoquence_msgs', 'ailoquence_regen_store', __('New store credentials generated. Paste them into your store settings in Ailoquence before connecting again.', 'ailoquence-connector'), 'warning');
  }
}

function ailoquence_render_settings_page() {
  if (!current_user_can('manage_options')) return;

  $opt       = ailoquence_get_options();
  $store_opt = ailoquence_ensure_store_credentials();
  $wc_active = ailoquence_is_woocommerce_active();

  settings_errors('ailoquence_msgs');
  ?>
  <div class="wrap">
    <h1><?php esc_html_e('Ailoquence Connector', 'ailoquence-connector'); ?></h1>
    <p>
      <?php esc_html_e('Connects this site to Ailoquence so you can publish and schedule the blog posts you create there, and link your WooCommerce store.', 'ailoquence-connector'); ?>
      <a href="https://app.ailoquence.com/login" target="_blank" rel="noopener noreferrer"><?php esc_html_e('Open Ailoquence', 'ailoquence-connector'); ?></a>
    </p>

    <h2><?php esc_html_e('Blog connection', 'ailoquence-connector'); ?></h2>
    <ol>
      <li><?php esc_html_e('In Ailoquence, open your project and go to the Blog settings.', 'ailoquence-connector'); ?></li>
      <li><?php esc_html_e('Add this site\'s URL and paste the Public Key and Secret shown below.', 'ailoquence-connector'); ?></li>
      <li><?php esc_html_e('Save and check the connection from Ailoquence.', 'ailoquence-connector'); ?></li>
    </ol>

    <form method="post">
      <?php wp_nonce_field('ailoquence_save_action'); ?>
      <input type="hidden" name="ailoquence_save" value="1" />

      <table class="form-table" role="presentation">
        <tr>
          <th scope="row"><?php esc_html_e('Site URL', 'ailoquence-connector'); ?></th>
          <td><code><?php echo esc_html(home_url()); ?></code></td>
        </tr>

        <tr>
          <th scope="row"><label for="ailoquence-public-key"><?php esc_html_e('Public Key', 'ailoquence-connector'); ?></label></th>
          <td><input type="text" id="ailoquence-public-key" class="regular-text code" readonly value="<?php echo esc_attr($opt['public_key']); ?>" /></td>
        </tr>

        <tr>
          <th scope="row"><label for="ailoquence-secret"><?php esc_html_e('Secret', 'ailoquence-connector'); ?></label></th>
          <td>
            <input type="text" id="ailoquence-secret" class="regular-text code" readonly value="<?php echo esc_attr($opt['secret']); ?>" />
            <p class="description"><?php esc_html_e('Keep it private: anyone with the Public Key and Secret can publish on this site through Ailoquence.', 'ailoquence-connector'); ?></p>
          </td>
        </tr>

        <tr>
          <th scope="row"><label for="ailoquence-author-id"><?php esc_html_e('Post author', 'ailoquence-connector'); ?></label></th>
          <td>
            <?php
            wp_dropdown_users([
              'name'       => 'ailoquence_author_id',
              'id'         => 'ailoquence-author-id',
              'capability' => ['publish_posts'],
              'selected'   => ailoquence_resolve_author_id(),
            ]);
            ?>
            <p class="description"><?php esc_html_e('New posts published from Ailoquence are attributed to this user. Posts already published are not changed.', 'ailoquence-connector'); ?></p>
          </td>
        </tr>

        <tr>
          <th scope="row"><?php esc_html_e('Allow publishing', 'ailoquence-connector'); ?></th>
          <td>
            <label>
              <input type="checkbox" name="ailoquence_enabled" value="1" <?php checked(!empty($opt['enabled'])); ?> />
              <?php esc_html_e('Accept requests from Ailoquence', 'ailoquence-connector'); ?>
            </label>
            <p class="description"><?php esc_html_e('When unchecked, Ailoquence cannot publish, update or read posts on this site.', 'ailoquence-connector'); ?></p>
          </td>
        </tr>

        <tr>
          <th scope="row"><label for="ailoquence-allowed-ips"><?php esc_html_e('Allowed IPs', 'ailoquence-connector'); ?></label></th>
          <td>
            <input type="text" id="ailoquence-allowed-ips" class="regular-text" name="ailoquence_allowed_ips" value="<?php echo esc_attr($opt['allowed_ips']); ?>" />
            <p class="description"><?php esc_html_e('Optional, comma-separated. Leave empty to accept signed requests from any IP — only fill it in if Ailoquence support gives you its server addresses.', 'ailoquence-connector'); ?></p>
          </td>
        </tr>

        <tr>
          <th scope="row"><?php esc_html_e('Plugin version', 'ailoquence-connector'); ?></th>
          <td><?php echo esc_html(AILOQUENCE_CONNECTOR_VERSION); ?></td>
        </tr>
      </table>

      <?php submit_button(__('Save changes', 'ailoquence-connector')); ?>
    </form>

    <form method="post">
      <?php wp_nonce_field('ailoquence_regen_action'); ?>
      <input type="hidden" name="ailoquence_regen" value="1" />
      <p class="description"><?php esc_html_e('If you think your credentials were exposed, generate new ones. Ailoquence will stop publishing until you paste the new ones into your blog settings.', 'ailoquence-connector'); ?></p>
      <?php submit_button(__('Regenerate credentials', 'ailoquence-connector'), 'secondary'); ?>
    </form>

    <hr />

    <h2><?php esc_html_e('WooCommerce Store Connection', 'ailoquence-connector'); ?></h2>

    <?php if (!$wc_active): ?>
      <p><?php esc_html_e('WooCommerce is not active on this site. Install and activate it if you want Ailoquence to create content from your products.', 'ailoquence-connector'); ?></p>
    <?php else: ?>
      <ol>
        <li><?php esc_html_e('In Ailoquence, open your project, add an ecommerce store and paste the Store Public Key and Store Secret shown below. Save the project.', 'ailoquence-connector'); ?></li>
        <li><?php esc_html_e('Come back here and click "Connect my store automatically".', 'ailoquence-connector'); ?></li>
      </ol>
      <p class="description"><?php esc_html_e('Connecting creates a WooCommerce REST API key with read/write access and sends it, together with this site\'s URL, to Ailoquence, so it can read your products and apply the changes you make to them from Ailoquence. Disconnecting revokes that key.', 'ailoquence-connector'); ?></p>

      <table class="form-table" role="presentation">
        <tr>
          <th scope="row"><?php esc_html_e('Status', 'ailoquence-connector'); ?></th>
          <td>
            <?php if (!empty($store_opt['store_connected'])): ?>
              <strong style="color:#008a20;"><?php esc_html_e('Connected', 'ailoquence-connector'); ?></strong>
              <?php if (!empty($store_opt['store_connected_at'])): ?>
                <p class="description">
                  <?php
                  /* translators: %s: date and time the store was connected. */
                  echo esc_html(sprintf(__('Connected on %s', 'ailoquence-connector'), $store_opt['store_connected_at']));
                  ?>
                </p>
              <?php endif; ?>
            <?php else: ?>
              <strong style="color:#996800;"><?php esc_html_e('Not connected', 'ailoquence-connector'); ?></strong>
            <?php endif; ?>

            <?php if (!empty($store_opt['store_last_error'])): ?>
              <p class="description" style="color:#b32d2e;">
                <?php
                /* translators: %s: error message. */
                echo esc_html(sprintf(__('Last error: %s', 'ailoquence-connector'), $store_opt['store_last_error']));
                ?>
              </p>
            <?php endif; ?>
          </td>
        </tr>

        <tr>
          <th scope="row"><label for="ailoquence-store-public-key"><?php esc_html_e('Store Public Key', 'ailoquence-connector'); ?></label></th>
          <td><input type="text" id="ailoquence-store-public-key" class="regular-text code" readonly value="<?php echo esc_attr($store_opt['store_public_key']); ?>" /></td>
        </tr>

        <tr>
          <th scope="row"><label for="ailoquence-store-secret"><?php esc_html_e('Store Secret', 'ailoquence-connector'); ?></label></th>
          <td><input type="text" id="ailoquence-store-secret" class="regular-text code" readonly value="<?php echo esc_attr($store_opt['store_secret']); ?>" /></td>
        </tr>
      </table>

      <div>
        <form method="post" style="display:inline-block; margin-right:8px;">
          <?php wp_nonce_field('ailoquence_connect_store_action'); ?>
          <input type="hidden" name="ailoquence_connect_store" value="1" />
          <?php submit_button(__('Connect my store automatically', 'ailoquence-connector'), 'primary', 'submit', false); ?>
        </form>

        <?php if (!empty($store_opt['store_connected'])): ?>
          <form method="post" style="display:inline-block; margin-right:8px;">
            <?php wp_nonce_field('ailoquence_disconnect_store_action'); ?>
            <input type="hidden" name="ailoquence_disconnect_store" value="1" />
            <?php submit_button(__('Disconnect store', 'ailoquence-connector'), 'secondary', 'submit', false); ?>
          </form>
        <?php endif; ?>

        <form method="post" style="display:inline-block;">
          <?php wp_nonce_field('ailoquence_regen_store_action'); ?>
          <input type="hidden" name="ailoquence_regen_store" value="1" />
          <?php submit_button(__('Regenerate store credentials', 'ailoquence-connector'), 'secondary', 'submit', false); ?>
        </form>
      </div>

      <?php if (!empty($store_opt['store_connected'])): ?>
        <h2><?php esc_html_e('Email alerts from Ailoquence', 'ailoquence-connector'); ?></h2>
        <form method="post">
          <?php wp_nonce_field('ailoquence_save_newsletter_action'); ?>
          <input type="hidden" name="ailoquence_save_newsletter" value="1" />
          <table class="form-table" role="presentation">
            <tr>
              <th scope="row"><?php esc_html_e('Email alerts', 'ailoquence-connector'); ?></th>
              <td>
                <label>
                  <input type="checkbox" name="ailoquence_newsletter_enabled" value="1" <?php checked(ailoquence_newsletter_enabled()); ?> />
                  <?php esc_html_e('Allow Ailoquence to send email alerts to this store\'s customers', 'ailoquence-connector'); ?>
                </label>
                <p class="description"><?php esc_html_e('Alerts are set up in Ailoquence (new products, sales, back in stock, review requests, abandoned carts...). When unchecked, Ailoquence sends none of them for this store, and the checkout no longer asks for permission to remind customers about their cart.', 'ailoquence-connector'); ?></p>
                <p class="description"><?php esc_html_e('Abandoned cart reminders: the checkout asks for permission (customers who have bought before and are logged in are informed and can opt out). Only then are the customer\'s email, first name and cart sent to Ailoquence. Add this to your privacy policy: see Settings → Privacy.', 'ailoquence-connector'); ?></p>
              </td>
            </tr>
          </table>
          <?php submit_button(__('Save email alert settings', 'ailoquence-connector'), 'secondary'); ?>
        </form>
      <?php endif; ?>
    <?php endif; ?>
  </div>
  <?php
}