<?php
/**
 * Plugin Name:       Admin Order Notes & Status Highlighter
 * Description:       Highlight admin order notes and order status badges with custom colors in the WooCommerce orders admin.
 * Version:           1.2.0
 * Requires at least: 5.0
 * Tested up to:      6.8
 * Requires PHP:      7.4
 * Author:            Amit Dholiya
 * Text Domain:       admin-order-notes-status-highlighter
 * License:           GPLv3
 * License URI:       https://www.gnu.org/licenses/gpl-3.0.html
 */

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

if (!class_exists('AONSH_Settings')) {

    class AONSH_Settings {

        public function __construct() {
            // Run after WooCommerce has loaded
            add_action('init', [$this, 'init']);
        }

        public function init() {
            if (!class_exists('WooCommerce')) {
                return;
            }

            // Add tab to WooCommerce settings
            add_filter('woocommerce_settings_tabs_array', [$this, 'add_tab'], 50);
            add_action('woocommerce_settings_tabs_aonsh', [$this, 'settings_tab']);
            add_action('woocommerce_update_options_aonsh', [$this, 'update_settings']);
            add_filter('woocommerce_order_note_class', [$this,'color_classes'],10,2);
            add_action('admin_head', [$this,'css']);
        }

        public function add_tab($tabs) {
            $tabs['aonsh'] = __('Order Notes Highlighter', 'admin-order-notes-status-highlighter');
            return $tabs;
        }

        public function settings_tab() {
            woocommerce_admin_fields($this->get_settings());
        }

        public function update_settings() {
            woocommerce_update_options($this->get_settings());
        }

        public function get_settings(){
        $settings = [];
        $statuses = wc_get_order_statuses();

        $settings[] = [
            'name' => __('Order Note Colors', 'admin-order-notes-status-highlighter'),
            'type' => 'title',
            'desc' => __('Assign background colors to order notes based on order status.', 'admin-order-notes-status-highlighter'),
            'id' => 'aonsh_settings_note_colors'
        ];

        foreach ($statuses as $status_key => $label) {
            $settings[] = [
                'name' => $label,
                'type' => 'color',
                'id' => 'aonsh_note_' . sanitize_title($label)
            ];
        }

        $settings[] = ['type' => 'sectionend', 'id' => 'aonsh_settings_note_colors_end'];

        $settings[] = [
            'name' => __('Order Status Badge Colors', 'admin-order-notes-status-highlighter'),
            'type' => 'title',
            'desc' => __('Customize admin order status badge colors.', 'admin-order-notes-status-highlighter'),
            'id' => 'aonsh_settings_badge_colors'
        ];

        foreach ($statuses as $status_key => $label) {
            $slug = str_replace('wc-', '', $status_key);
            $settings[] = [
                'name' => $label,
                'type' => 'color',
                'id' => 'aonsh_badge_' . $slug
            ];
        }

        $settings[] = ['type' => 'sectionend', 'id' => 'aonsh_settings_badge_colors_end'];

        return $settings;
}

  public function color_classes($classes,$note){
        $content = !empty($note->content) ? $note->content : (!empty($note->comment_content) ? $note->comment_content : '');
        if(!$content) return $classes;

        $statuses=wc_get_order_statuses();
        foreach($statuses as $key=>$label){
            if(stripos($content,$label)!==false){
                $classes[]='aonsh_note_'.sanitize_title($label);
            }
        }
        return $classes;
    }

    public function css(){
        global $current_screen;
        if(empty($current_screen) || $current_screen->post_type!=='shop_order') return;

        $css='';
        $statuses=wc_get_order_statuses();

        foreach($statuses as $key=>$label){
            $id='aonsh_note_'.sanitize_title($label);
            $color=get_option($id);
            if($color){
                $hex=ltrim($color,'#');
                $text=(hexdec($hex)>0xffffff/2)?'black':'white';
                $css.=".note.$id .note_content{background:$color!important;color:$text!important;}";
                $css.=".note.$id .note_content:after{border-color:$color transparent!important;}";
            }
        }

        foreach($statuses as $key=>$label){
            $slug=str_replace('wc-','',$key);
            $id='aonsh_badge_'.$slug;
            $color=get_option($id);
            if($color){
                $hex=ltrim($color,'#');
                $text=(hexdec($hex)>0xffffff/2)?'black':'white';
                $css.="mark.order-status.status-$slug{background:$color!important;color:$text!important;}";
            }
        }

        echo "<style id='aonsh-css'>" . wp_kses($css, []) . "</style>";
    }

    }
}

// Instantiate the class after plugins load
add_action('plugins_loaded', function () {
    new AONSH_Settings();
});