<?php
namespace ActiveTwist\SEO\Admin;

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

use ActiveTwist\SEO\Settings\Options;
use ActiveTwist\SEO\Utils\Validation;

class SettingsPage
{
    public function init()
    {
        // Menu registration handled by AdminMenu class
        add_action('admin_init', [$this, 'register_settings']);
        add_action('admin_enqueue_scripts', [$this, 'enqueue_scripts']);
        add_action('admin_post_at_seo_nuclear_reset', [$this, 'handle_nuclear_reset']);
    }

    public function enqueue_scripts($hook_suffix)
    {
        // Only load on Active Twist SEO pages
        $screen = get_current_screen();
        if (strpos($screen->id, 'active-twist-seo') === false) {
            return;
        }

        wp_enqueue_media();
        wp_enqueue_style('active-twist-seo-admin', plugin_dir_url(dirname(__DIR__)) . 'assets/css/admin.css', [], '1.0.0');
        wp_enqueue_script('active-twist-seo-admin', plugin_dir_url(dirname(__DIR__)) . 'assets/js/admin.js', ['jquery'], '1.0.0', true);
    }

    // add_settings_page removed in favor of AdminMenu

    public function register_settings()
    {
        register_setting(
            'active_twist_seo_group',
            Options::OPTION_NAME,
            [$this, 'sanitize_options']
        );

        // -- Tab: General (Page Slug: active-twist-seo-general) --
        $page_general = 'active-twist-seo-general';

        add_settings_section('at_seo_general', esc_html__('General Defaults', 'active-twist-seo-json-ld'), '__return_empty_string', $page_general);
        add_settings_section('at_seo_social', esc_html__('Social Defaults', 'active-twist-seo-json-ld'), '__return_empty_string', $page_general);
        add_settings_section('at_seo_schema', esc_html__('Structured Data', 'active-twist-seo-json-ld'), '__return_empty_string', $page_general);
        add_settings_section('at_seo_media', esc_html__('Media', 'active-twist-seo-json-ld'), '__return_empty_string', $page_general);

        // Fields - General
        add_settings_field('seo_title_suffix', esc_html__('Title Suffix', 'active-twist-seo-json-ld'), [$this, 'render_text_field'], $page_general, 'at_seo_general', [
            'label_for' => 'seo_title_suffix',
            'description' => esc_html__('Appended to auto-generated titles (e.g. " - Site Name").', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('default_description', esc_html__('Default Description', 'active-twist-seo-json-ld'), [$this, 'render_textarea_field'], $page_general, 'at_seo_general', [
            'label_for' => 'default_description',
            'description' => esc_html__('Fallback description for pages with no manual description or excerpt.', 'active-twist-seo-json-ld')
        ]);

        // Fields - Social
        add_settings_field('default_twitter_card', esc_html__('Twitter Card Type', 'active-twist-seo-json-ld'), [$this, 'render_select_field'], $page_general, 'at_seo_social', [
            'label_for' => 'default_twitter_card',
            'options' => [
                'summary_large_image' => esc_html__('Summary Large Image', 'active-twist-seo-json-ld'),
                'summary' => esc_html__('Summary', 'active-twist-seo-json-ld')
            ],
            'description' => esc_html__('Default Twitter card type.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('social_urls', esc_html__('Social Profiles', 'active-twist-seo-json-ld'), [$this, 'render_social_repeater'], $page_general, 'at_seo_social', [
            'label_for' => 'social_urls',
            'description' => esc_html__('Enter your social profile URLs. These will be added to your Organization\'s "sameAs" schema property, helping search engines associate these profiles with your site.', 'active-twist-seo-json-ld')
        ]);

        // Fields - Schema
        add_settings_field('org_name', esc_html__('Organization Name', 'active-twist-seo-json-ld'), [$this, 'render_text_field'], $page_general, 'at_seo_schema', [
            'label_for' => 'org_name',
            'description' => esc_html__('Name of the organization/website.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('org_url', esc_html__('Organization URL', 'active-twist-seo-json-ld'), [$this, 'render_text_field'], $page_general, 'at_seo_schema', [
            'label_for' => 'org_url',
            'description' => esc_html__('URL of the organization/website.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('org_logo', esc_html__('Organization Logo', 'active-twist-seo-json-ld'), [$this, 'render_image_field'], $page_general, 'at_seo_schema', [
            'label_for' => 'org_logo',
            'description' => esc_html__('URL of the organization logo.', 'active-twist-seo-json-ld')
        ]);

        // Fields - Media
        add_settings_field('default_og_image', esc_html__('Default Social Image', 'active-twist-seo-json-ld'), [$this, 'render_image_field'], $page_general, 'at_seo_media', [
            'label_for' => 'default_og_image',
            'description' => esc_html__('Fallback image when no featured image or manual OG image is set. Recommended size: 1200x630 pixels.', 'active-twist-seo-json-ld')
        ]);


        // -- Tab: Business (Page Slug: active-twist-seo-business) --
        $page_business = 'active-twist-seo-business';

        add_settings_section('at_seo_local', esc_html__('Local Business (Schema)', 'active-twist-seo-json-ld'), '__return_empty_string', $page_business);

        // Fields - Local Business
        add_settings_field('local_business_enabled', esc_html__('Enable Local Business', 'active-twist-seo-json-ld'), [$this, 'render_checkbox_field'], $page_business, 'at_seo_local', [
            'label_for' => 'local_business_enabled',
            'description' => esc_html__('Output LocalBusiness schema on organization/website pages.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('local_business_name', esc_html__('Business Name', 'active-twist-seo-json-ld'), [$this, 'render_text_field'], $page_business, 'at_seo_local', [
            'label_for' => 'local_business_name',
            'description' => esc_html__('Defaults to Organization Name if empty.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('local_business_address', esc_html__('Address', 'active-twist-seo-json-ld'), [$this, 'render_textarea_field'], $page_business, 'at_seo_local', [
            'label_for' => 'local_business_address',
            'description' => esc_html__('Full address. Can include newlines.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('local_business_phone', esc_html__('Telephone', 'active-twist-seo-json-ld'), [$this, 'render_text_field'], $page_business, 'at_seo_local', [
            'label_for' => 'local_business_phone',
            'description' => esc_html__('International format preferred (e.g. +1-555-555-5555).', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('local_business_hours', esc_html__('Opening Hours', 'active-twist-seo-json-ld'), [$this, 'render_text_field'], $page_business, 'at_seo_local', [
            'label_for' => 'local_business_hours',
            'description' => esc_html__('Simple text description (e.g. "Mo-Fr 09:00-17:00"). For complex hours, Schema syntax is managed manually.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('local_business_image', esc_html__('Business Image', 'active-twist-seo-json-ld'), [$this, 'render_image_field'], $page_business, 'at_seo_local', [
            'label_for' => 'local_business_image',
            'description' => esc_html__('Representative image of the business location.', 'active-twist-seo-json-ld')
        ]);

        // -- Tab: Advanced (Page Slug: active-twist-seo-advanced) --
        $page_advanced = 'active-twist-seo-advanced';

        add_settings_section('at_seo_toggles', esc_html__('Output Control (Advanced)', 'active-twist-seo-json-ld'), '__return_empty_string', $page_advanced);
        add_settings_section('at_seo_danger', esc_html__('Danger Zone', 'active-twist-seo-json-ld'), [$this, 'render_danger_section'], $page_advanced);

        // Fields - Output Toggles
        add_settings_field('enable_canonical_output', esc_html__('Canonical Tags', 'active-twist-seo-json-ld'), [$this, 'render_checkbox_field'], $page_advanced, 'at_seo_toggles', [
            'label_for' => 'enable_canonical_output',
            /* translators: %s: HTML code tag. */
            'description' => sprintf(esc_html__('Output %s tags.', 'active-twist-seo-json-ld'), '<code>rel="canonical"</code>')
        ]);
        add_settings_field('enable_json_ld_output', esc_html__('JSON-LD Schema', 'active-twist-seo-json-ld'), [$this, 'render_checkbox_field'], $page_advanced, 'at_seo_toggles', [
            'label_for' => 'enable_json_ld_output',
            'description' => esc_html__('Output structured data script blocks.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('enable_social_output', esc_html__('Social Metadata', 'active-twist-seo-json-ld'), [$this, 'render_checkbox_field'], $page_advanced, 'at_seo_toggles', [
            'label_for' => 'enable_social_output',
            'description' => esc_html__('Output Open Graph and Twitter Card meta tags.', 'active-twist-seo-json-ld')
        ]);
        add_settings_field('enable_robots_output', esc_html__('Robots Meta', 'active-twist-seo-json-ld'), [$this, 'render_checkbox_field'], $page_advanced, 'at_seo_toggles', [
            'label_for' => 'enable_robots_output',
            /* translators: %s: HTML code tag. */
            'description' => sprintf(esc_html__('Output %s and other crawler directives.', 'active-twist-seo-json-ld'), '<code>robots</code>')
        ]);
    }

    public function render_danger_section()
    {
        ?>
        <div style="border: 1px solid #dc3232; padding: 20px; background: #fff5f5; max-width: 600px;">
            <h3 style="color: #dc3232; margin-top: 0;"><?php esc_html_e('Nuclear Reset', 'active-twist-seo-json-ld'); ?></h3>
            <p><?php echo wp_kses_post(__('This action will <strong>delete all Active Twist SEO data</strong>, including settings, custom meta, and scan logs. It will also reset the "First Run" state.', 'active-twist-seo-json-ld')); ?>
            </p>
            <p><strong><?php esc_html_e('This action cannot be undone.', 'active-twist-seo-json-ld'); ?></strong></p>

            <form method="post" action="<?php echo esc_url(admin_url('admin-post.php')); ?>" style="margin-top: 15px;">
                <input type="hidden" name="action" value="at_seo_nuclear_reset">
                <?php wp_nonce_field('at_seo_nuclear_reset', 'at_seo_reset_nonce'); ?>

                <p>
                    <label for="at_seo_reset_confirm">Type <code>reset</code> to confirm:</label><br>
                    <input type="text" id="at_seo_reset_confirm" name="reset_confirm" required pattern="reset"
                        class="regular-text">
                </p>

                <button type="submit" class="button button-link-delete" id="at_seo_reset_btn"
                    disabled><?php esc_html_e('Data Reset - Delete Everything', 'active-twist-seo-json-ld'); ?></button>
            </form>


        </div>
        <?php
    }

    public function sanitize_options($input)
    {
        // If not a standard Settings form submission, assume programmatic update and trust input.
        // This prevents data loss for internal keys (first_run, timestamps) and separate controllers (robots).
        $posted_tab = filter_input(INPUT_POST, 'active_twist_seo_tab', FILTER_SANITIZE_FULL_SPECIAL_CHARS);

        // Critical Security Fix: Never return raw input.
        // If tab is missing (Programmatic Update/Internal), strictly sanitize known keys and merge with existing.
        if ($posted_tab === null) {
            $existing = Options::get_all();
            $clean = $existing;

            // Boolean / Checkboxes
            $bools = ['first_run_complete', 'local_business_enabled', 'enable_canonical_output', 'enable_json_ld_output', 'enable_social_output', 'enable_robots_output'];
            foreach ($bools as $key) {
                if (isset($input[$key])) {
                    $clean[$key] = (bool) $input[$key];
                }
            }

            // Text Fields
            $texts = ['seo_title_suffix', 'default_twitter_card', 'org_name', 'local_business_name', 'local_business_phone', 'local_business_hours', 'jsonld_mode', 'jsonld_type', 'robots'];
            foreach ($texts as $key) {
                if (isset($input[$key])) {
                    $clean[$key] = sanitize_text_field($input[$key]);
                }
            }

            // Textarea / Multiline
            $textareas = ['default_description', 'local_business_address', 'jsonld_custom', 'og_description', 'twitter_description', 'description'];
            foreach ($textareas as $key) {
                if (isset($input[$key])) {
                    $clean[$key] = sanitize_textarea_field($input[$key]);
                }
            }

            // Social URLs
            if (isset($input['social_urls'])) {
                if (is_array($input['social_urls'])) {
                    $urls = array_map('sanitize_url', $input['social_urls']);
                    $clean['social_urls'] = implode("\n", array_filter($urls));
                } else {
                    $clean['social_urls'] = sanitize_textarea_field($input['social_urls']);
                }
            }

            // URLs
            $urls = ['org_url', 'org_logo', 'default_og_image', 'local_business_image', 'canonical', 'og_image', 'twitter_image'];
            foreach ($urls as $key) {
                if (isset($input[$key])) {
                    $clean[$key] = esc_url_raw($input[$key]);
                }
            }

            return $clean;
        }

        check_admin_referer('active_twist_seo_group-options');

        $new_input = [];
        // Sanitize logic
        $new_input['seo_title_suffix'] = sanitize_text_field($input['seo_title_suffix'] ?? '');
        $new_input['default_description'] = sanitize_textarea_field($input['default_description'] ?? '');
        $new_input['default_twitter_card'] = sanitize_text_field($input['default_twitter_card'] ?? 'summary_large_image');

        // Handle Social URLs (Array from Repeater -> Newline String)
        if (isset($input['social_urls']) && is_array($input['social_urls'])) {
            $urls = array_map('sanitize_url', $input['social_urls']);
            $urls = array_filter($urls); // Remove empty
            $new_input['social_urls'] = implode("\n", $urls);
        } else {
            $new_input['social_urls'] = sanitize_textarea_field($input['social_urls'] ?? '');
        }

        $new_input['org_name'] = sanitize_text_field($input['org_name'] ?? '');
        $new_input['org_url'] = esc_url_raw($input['org_url'] ?? '');
        $new_input['org_logo'] = esc_url_raw($input['org_logo'] ?? '');
        $new_input['default_og_image'] = esc_url_raw($input['default_og_image'] ?? '');

        // Phase 4: Local Business Sanitize
        // Note: When saving from "General" tab, Business fields might be missing from $_POST, 
        // causing them to be unset if we just use $input to rebuild $new_input completely?
        // register_setting usually handles merging if we return the full array, OR WP replaces the whole option.
        // WP replaces the WHOLE option.
        // DANGER: If we submit General form, Business fields are missing from $_POST.
        // We MUST merge with existing options for fields not present in current tab submission.

        // Let's get existing options to merge.
        $existing = Options::get_all();

        // We can't easily know which tab submitted, but we can check existence of keys?
        // Actually, checkboxes are tricky (unchecked = missing).
        // Solution: Hidden field with tab name? OR just merge carefully.

        // Better: register_setting callback receives the *whole* new input from the form.
        // If a field is missing from the form data, it's missing from $input.

        // Strategy: 
        // 1. Start $new_input as $existing.
        // 2. Overwrite with sanitize($input) keys that are expected for the *current context*.
        // But sanitize callback doesn't know context easily.

        // Alternative: Use a hidden field 'active_twist_seo_tab' in the form, and use it here.
        // $_POST['active_twist_seo_tab'] available? Yes, likely.

        $current_tab = sanitize_key($posted_tab);
        if ($current_tab === '') {
            $current_tab = 'general';
        }

        if ($current_tab === 'general') {
            // We are saving General tab. Keep Business settings from $existing.
            $new_input['local_business_enabled'] = $existing['local_business_enabled'] ?? false;
            $new_input['local_business_name'] = $existing['local_business_name'] ?? '';
            $new_input['local_business_address'] = $existing['local_business_address'] ?? '';
            $new_input['local_business_phone'] = $existing['local_business_phone'] ?? '';
            $new_input['local_business_hours'] = $existing['local_business_hours'] ?? '';
            $new_input['local_business_image'] = $existing['local_business_image'] ?? '';

            // Process General fields
            $new_input['seo_title_suffix'] = sanitize_text_field($input['seo_title_suffix'] ?? '');
            $new_input['default_description'] = sanitize_textarea_field($input['default_description'] ?? '');
            $new_input['default_twitter_card'] = sanitize_text_field($input['default_twitter_card'] ?? 'summary_large_image');

            $new_input['org_name'] = sanitize_text_field($input['org_name'] ?? '');
            $new_input['org_url'] = esc_url_raw($input['org_url'] ?? '');
            $new_input['org_logo'] = esc_url_raw($input['org_logo'] ?? '');
            $new_input['default_og_image'] = esc_url_raw($input['default_og_image'] ?? '');

            if (isset($input['social_urls']) && is_array($input['social_urls'])) {
                $urls = array_map('sanitize_url', $input['social_urls']);
                $urls = array_filter($urls);
                $new_input['social_urls'] = implode("\n", $urls);
            } else {
                $new_input['social_urls'] = sanitize_textarea_field($input['social_urls'] ?? '');
            }
        } elseif ($current_tab === 'business') {
            // Saving Business tab. Keep General settings.
            $new_input['seo_title_suffix'] = $existing['seo_title_suffix'] ?? '';
            $new_input['default_description'] = $existing['default_description'] ?? '';
            $new_input['default_twitter_card'] = $existing['default_twitter_card'] ?? 'summary_large_image';
            $new_input['social_urls'] = $existing['social_urls'] ?? '';
            $new_input['org_name'] = $existing['org_name'] ?? '';
            $new_input['org_url'] = $existing['org_url'] ?? '';
            $new_input['org_logo'] = $existing['org_logo'] ?? '';
            $new_input['default_og_image'] = $existing['default_og_image'] ?? '';

            // Process Business fields
            $new_input['local_business_enabled'] = isset($input['local_business_enabled']); // Checkbox works here because we know we are in Business tab
            $new_input['local_business_name'] = sanitize_text_field($input['local_business_name'] ?? '');
            $new_input['local_business_address'] = sanitize_textarea_field($input['local_business_address'] ?? '');
            $new_input['local_business_phone'] = sanitize_text_field($input['local_business_phone'] ?? '');
            $new_input['local_business_hours'] = sanitize_text_field($input['local_business_hours'] ?? '');
            $new_input['local_business_image'] = esc_url_raw($input['local_business_image'] ?? '');
        } elseif ($current_tab === 'advanced') {
            // Saving Advanced tab. Keep General and Business settings.
            $new_input = array_merge($existing, $new_input); // Start with existing

            // Process Advanced fields (Checkboxes)
            // If key exists in input, it's true. If not, it's false (because uncheck = missing from POST).
            $new_input['enable_canonical_output'] = isset($input['enable_canonical_output']);
            $new_input['enable_json_ld_output'] = isset($input['enable_json_ld_output']);
            $new_input['enable_social_output'] = isset($input['enable_social_output']);
            $new_input['enable_robots_output'] = isset($input['enable_robots_output']);
        }

        // Validation for images (General tab only? Or always check if changing?)
        if (!empty($new_input['default_og_image']) && $current_tab === 'general') {
            $validation = Validation::validate_image_dimensions($new_input['default_og_image']);
            if (!$validation['valid']) {
                add_settings_error(Options::OPTION_NAME, 'default_og_image_error', 'Default Social Image: ' . $validation['message']);
            } elseif ($validation['message'] !== 'OK') {
                add_settings_error(Options::OPTION_NAME, 'default_og_image_warn', 'Default Social Image: ' . $validation['message'], 'updated');
            }
        }

        // Check local business image if desired, but not strictly required by prompt.

        return $new_input;
    }

    public function render_page()
    {
        $requested_tab = filter_input(INPUT_GET, 'tab', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        $requested_tab = is_string($requested_tab) ? sanitize_key($requested_tab) : '';
        $active_tab = in_array($requested_tab, ['general', 'business', 'advanced'], true) ? $requested_tab : 'general';
        ?>
        <div class="wrap">
            <h1>SEO Settings</h1>
            <?php settings_errors(); ?>

            <nav class="nav-tab-wrapper" style="margin-bottom: 20px;">
                <a href="?page=active-twist-seo&tab=general"
                    class="nav-tab <?php echo $active_tab === 'general' ? 'nav-tab-active' : ''; ?>">General</a>
                <a href="?page=active-twist-seo&tab=business"
                    class="nav-tab <?php echo $active_tab === 'business' ? 'nav-tab-active' : ''; ?>">Business</a>
                <a href="?page=active-twist-seo&tab=advanced"
                    class="nav-tab <?php echo $active_tab === 'advanced' ? 'nav-tab-active' : ''; ?>">Advanced</a>
            </nav>

            <form method="post" action="options.php">
                <input type="hidden" name="active_twist_seo_tab" value="<?php echo esc_attr($active_tab); ?>">
                <?php
                settings_fields('active_twist_seo_group');

                if ($active_tab === 'business') {
                    do_settings_sections('active-twist-seo-business');
                } elseif ($active_tab === 'advanced') {
                    do_settings_sections('active-twist-seo-advanced');
                } else {
                    do_settings_sections('active-twist-seo-general');
                }

                submit_button();
                ?>
            </form>
        </div>
        <?php
    }

    public function render_text_field($args)
    {
        $options = Options::get_all();
        $key = $args['label_for'];
        $value = isset($options[$key]) ? $options[$key] : '';

        // Pre-propulate defaults for Org Name and URL if empty
        if (empty($value)) {
            if ($key === 'org_name') {
                $value = get_bloginfo('name');
            } elseif ($key === 'org_url') {
                $value = home_url('/');
            }
        }

        echo '<input type="text" name="' . esc_attr(Options::OPTION_NAME . '[' . $key . ']') . '" value="' . esc_attr($value) . '" class="regular-text">';
        if (!empty($args['description'])) {
            echo '<p class="description">' . esc_html($args['description']) . '</p>';
        }
    }

    public function render_textarea_field($args)
    {
        $options = Options::get_all();
        $key = $args['label_for'];
        $value = isset($options[$key]) ? $options[$key] : '';
        echo '<textarea name="' . esc_attr(Options::OPTION_NAME . '[' . $key . ']') . '" rows="5" cols="50" class="large-text code">' . esc_textarea($value) . '</textarea>';
        if (!empty($args['description'])) {
            echo '<p class="description">' . esc_html($args['description']) . '</p>';
        }
    }

    public function render_social_repeater($args)
    {
        $options = Options::get_all();
        $key = $args['label_for'];
        $stored = isset($options[$key]) ? $options[$key] : '';

        // Parse stored string into array
        $current_urls = [];
        if (is_string($stored)) {
            $current_urls = array_filter(array_map('trim', explode("\n", $stored)));
        } elseif (is_array($stored)) {
            $current_urls = $stored;
        }

        $platforms = [
            'linkedin.com' => 'LinkedIn',
            'twitter.com' => 'X (Twitter)',
            'x.com' => 'X (Twitter)',
            'facebook.com' => 'Facebook',
            'instagram.com' => 'Instagram',
            'youtube.com' => 'YouTube',
            'github.com' => 'GitHub'
        ];

        // Map current URLs to platforms
        $matched_urls = [];
        $custom_urls = [];

        foreach ($current_urls as $url) {
            $matched = false;
            foreach ($platforms as $domain => $name) {
                if (strpos($url, $domain) !== false) {
                    // Avoid duplicate matches for same platform in this simple logic (or allow multiple?)
                    // Let's allow multiple, but typically 1 per platform.
                    // For UI simplicity, we pre-fill the "known platform" row.
                    // If multiple URLs exist for same platform, only the LAST one effectively wins in this simple UI (key collision in visual map),
                    // unless we use $matched_urls as array of ['platform' => ..., 'url' => ...].
                    // But we want fixed rows.
                    // Let's populate the fixed row with the FIRST match found.
                    if (!isset($matched_urls[$domain])) {
                        $matched_urls[$domain] = $url;
                        $matched = true;
                        break;
                    }
                }
            }
            if (!$matched) {
                $custom_urls[] = $url;
            }
        }

        // Render Known Platforms
        // Using `[]` in name allows multiple values.
        echo '<div class="at-seo-social-repeater">';

        $displayed_platforms = [
            'LinkedIn' => ['linkedin.com'],
            'X (Twitter)' => ['twitter.com', 'x.com'],
            'Facebook' => ['facebook.com'],
            'Instagram' => ['instagram.com'],
            'YouTube' => ['youtube.com'],
            'GitHub' => ['github.com']
        ];

        foreach ($displayed_platforms as $label => $domains) {
            $val = '';
            foreach ($domains as $d) {
                if (isset($matched_urls[$d])) {
                    $val = $matched_urls[$d];
                    break;
                }
            }

            echo '<div class="at-seo-social-row">';
            echo '<label>' . esc_html($label) . '</label>';
            echo '<div class="at-seo-social-input-wrapper">';
            echo '<input type="url" name="' . esc_attr(Options::OPTION_NAME . '[' . $key . '][]') . '" value="' . esc_attr($val) . '" class="regular-text" placeholder="https://...">';
            echo '</div>';
            echo '</div>';
        }

        // Render Custom URLs (Existing + 1 Empty)
        if (empty($custom_urls)) {
            $custom_urls[] = ''; // One empty slot
        } else {
            $custom_urls[] = ''; // Always add one empty slot at end?
        }

        foreach ($custom_urls as $url) {
            echo '<div class="at-seo-social-row">';
            echo '<label>Custom URL</label>';
            echo '<div class="at-seo-social-input-wrapper">';
            echo '<input type="url" name="' . esc_attr(Options::OPTION_NAME . '[' . $key . '][]') . '" value="' . esc_attr($url) . '" class="regular-text" placeholder="https://...">';
            echo '</div>';
            echo '</div>';
        }

        echo '</div>'; // close repeater
        echo '<p class="description">' . esc_html($args['description']) . '</p>';
    }

    public function render_select_field($args)
    {
        $options = Options::get_all();
        $key = $args['label_for'];
        $value = isset($options[$key]) ? $options[$key] : '';
        echo '<select name="' . esc_attr(Options::OPTION_NAME . '[' . $key . ']') . '">';
        foreach ($args['options'] as $opt_key => $opt_label) {
            echo '<option value="' . esc_attr($opt_key) . '" ' . selected($value, $opt_key, false) . '>' . esc_html($opt_label) . '</option>';
        }
        echo '</select>';
        if (!empty($args['description'])) {
            echo '<p class="description">' . esc_html($args['description']) . '</p>';
        }
    }

    public function render_image_field($args)
    {
        $options = Options::get_all();
        $key = $args['label_for'];
        $value = isset($options[$key]) ? $options[$key] : '';

        echo '<div class="at-seo-image-field">';
        echo '<input type="text" name="' . esc_attr(Options::OPTION_NAME . '[' . $key . ']') . '" value="' . esc_attr($value) . '" class="regular-text at-seo-image-input">';
        echo ' <button type="button" class="button at-seo-media-upload-btn">Select Image</button>';
        echo ' <button type="button" class="button at-seo-media-remove-btn">Remove</button>';
        echo '</div>';

        echo '<p class="description">' . esc_html($args['description']) . '</p>';
    }

    public function render_checkbox_field($args)
    {
        $options = Options::get_all();
        $key = $args['label_for'];
        $checked = !empty($options[$key]);
        echo '<input type="checkbox" name="' . esc_attr(Options::OPTION_NAME . '[' . $key . ']') . '" value="1" ' . checked($checked, true, false) . '>';
        if (!empty($args['description'])) {
            echo '<p class="description">' . wp_kses_post($args['description']) . '</p>';
        }
    }

    public function handle_nuclear_reset()
    {
        check_admin_referer('at_seo_nuclear_reset', 'at_seo_reset_nonce');

        $confirm = isset($_POST['reset_confirm']) ? sanitize_text_field(wp_unslash($_POST['reset_confirm'])) : '';
        if ($confirm !== 'reset') {
            wp_die('Confirmation failed.');
        }

        // 1. Delete Option
        delete_option(Options::OPTION_NAME);

        // 2. Clear 404 Log (and other transients/custom tables if any)
        delete_option('at_seo_404_monitor_log');

        // 3. Reset First Run State (Actually done by deleting valid option, but ensure default returns false)
        // Deleting the option means next get() returns defaults, which has first_run_complete = false.

        // 4. Redirect to First Run (or Status which triggers First Run logic)
        // Since first_run_complete will be false, AdminMenu will show the First Run page.
        // Let's redirect to main dashboard or settings to restart flow.
        wp_safe_redirect(admin_url('admin.php?page=active-twist-seo-first-run'));
        exit;
    }
}