/**
 * The Archive - Integrated Post Notes (Simple Post Notes port)
 * Branded, no plugin required, fully compatible.
 */
class Archive_Post_Notes {

    public $settings = [];

    public function __construct() {
        add_action('admin_init', [$this, 'add_columns']);
        add_action('admin_enqueue_scripts', [$this, 'enqueue']);
        add_action('add_meta_boxes', [$this, 'add_meta_box']);
        add_action('save_post', [$this, 'save_note']);
        add_action('save_post', [$this, 'save_quickedit_note']);
        add_action('wp_ajax_archive_note_save_bulk_edit', [$this, 'save_bulkedit_note']);
        add_action('bulk_edit_custom_box', [$this, 'add_quick_bulk_field'], 10, 2);
        add_action('quick_edit_custom_box', [$this, 'add_quick_bulk_field'], 10, 2);
        add_shortcode('archivenote', [$this, 'shortcode']);
        add_action('pre_get_posts', [$this, 'query_orderby']);
    }

    private function get_settings() {
        if (!empty($this->settings)) return;
        $this->settings = [
            'post_types'       => get_theme_mod('post_notes_post_types', ['post','page']),
            'notes_label'      => get_theme_mod('post_notes_label', __('Archive Note', 'p12r')),
            'notes_placeholder'=> get_theme_mod('post_notes_placeholder', '')
        ];
    }

    public function add_columns() {
        $this->get_settings();
        foreach ((array)$this->settings['post_types'] as $pt) {
            add_filter("manage_{$pt}_posts_columns", [$this, 'add_column']);
            add_action("manage_{$pt}_posts_custom_column", [$this, 'output_column'], 10, 2);
            add_filter("manage_edit-{$pt}_sortable_columns", [$this, 'register_sortable_column']);
        }
    }

    public function add_column($columns) {
        $this->get_settings();
        $label = wp_kses_data($this->settings['notes_label']);
        $columns['archive_note'] = $label;
        return $columns;
    }

    public function register_sortable_column($columns) {
        $columns['archive_note'] = 'archive_note';
        return $columns;
    }

    public function output_column($column, $post_id) {
        if ($column !== 'archive_note') return;
        $note = get_post_meta($post_id, '_archive_note', true);
        if ($note) echo '<div id="archive-note-' . esc_attr($post_id) . '">' . nl2br(wp_kses_data($note)) . '</div>';
    }

    public function query_orderby($query) {
        if (!is_admin() || $query->get('orderby') !== 'archive_note') return;
        $query->set('meta_key', '_archive_note');
        $query->set('orderby', 'meta_value');
    }

    public function add_meta_box() {
        $this->get_settings();
        $label = wp_kses_data($this->settings['notes_label']);
        foreach ((array)$this->settings['post_types'] as $screen) {
            add_meta_box('archive_notes', esc_html($label), [$this, 'metabox'], $screen, 'side', 'high');
        }
    }

    public function metabox($post) {
        $this->get_settings();
        wp_nonce_field('archive_note_' . $post->ID, 'archive_nonce');
        $placeholder = wp_kses_data($this->settings['notes_placeholder']);
        $note = get_post_meta($post->ID, '_archive_note', true);
        echo '<textarea style="display:block;width:100%;" rows="5" name="archive_note" placeholder="' . esc_attr($placeholder) . '">' . esc_textarea($note) . '</textarea>';
    }

    public function save_note($post_id) {
        if (!isset($_POST['archive_nonce']) || !wp_verify_nonce($_POST['archive_nonce'], 'archive_note_' . $post_id)) return;
        if (!current_user_can('edit_posts') || !isset($_POST['archive_note'])) return;
        update_post_meta($post_id, '_archive_note', sanitize_textarea_field($_POST['archive_note']));
    }

    public function add_quick_bulk_field($column_name, $post_type) {
        $this->get_settings();
        if (!in_array($post_type, (array)$this->settings['post_types']) || $column_name !== 'archive_note') return;
        $label = wp_kses_data($this->settings['notes_label']);
        $placeholder = wp_kses_data($this->settings['notes_placeholder']);
        wp_nonce_field('archive_note_bulk_edit', 'archive_nonce');
        echo '<fieldset class="inline-edit-col-right"><div class="inline-edit-group"><label><span class="title">' . esc_html($label) . '</span><textarea name="archive_note" placeholder="' . esc_attr($placeholder) . '"></textarea></label></div></fieldset>';
    }

    public function save_quickedit_note($post_id) {
        if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) return;
        if (!isset($_POST['action']) || $_POST['action'] !== 'inline-save') return;
        $this->get_settings();
        if (!in_array($_POST['post_type'] ?? '', (array)$this->settings['post_types'])) return;
        if (!wp_verify_nonce($_POST['archive_nonce'] ?? '', 'archive_note_bulk_edit')) return;
        if (!current_user_can('edit_posts') || !isset($_POST['archive_note'])) return;
        update_post_meta($post_id, '_archive_note', sanitize_textarea_field($_POST['archive_note']));
    }

    public function save_bulkedit_note() {
        check_ajax_referer('archive_note_bulk_edit', 'nonce');
        if (!current_user_can('edit_posts')) wp_die();
        $post_ids = isset($_POST['post_ids']) && is_array($_POST['post_ids']) ? $_POST['post_ids'] : [];
        $note = isset($_POST['archive_note']) ? sanitize_textarea_field($_POST['archive_note']) : '';
        if (empty($post_ids) || empty($note)) return;
        foreach ($post_ids as $id) {
            update_post_meta((int)$id, '_archive_note', $note);
        }
    }

    public function enqueue($hook) {
        // Only on post list / edit screens
        if (strpos($hook, 'edit-') !== false || strpos($hook, 'post.php') !== false || strpos($hook, 'post-new.php') !== false) {
            // Quick/bulk edit JS (very small, no external libs)
            wp_enqueue_script('archive-notes-admin', get_template_directory_uri() . '/admin/js/archive-notes.js', ['jquery'], null, true);
        }
    }

    public function shortcode($atts) {
        $atts = shortcode_atts(['id' => null], $atts, 'archivenote');
        $id = $atts['id'] ? (int)$atts['id'] : get_the_ID();
        $note = get_post_meta($id, '_archive_note', true);
        return $note ? '<div class="archive-note note-' . $id . '">' . nl2br(wp_kses_data($note)) . '</div>' : '';
    }
}

new Archive_Post_Notes();
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