<?php
/**
 * Plugin Name: Advanced OSM for Toolset Maps
 * Plugin URI: https://wordpress.org/plugins/advanced-osm-for-toolset-maps/
 * Description: Extends Toolset Maps OpenStreetMap with missing pro features: Satellite view, Marker Cluster, Grayscale styles and Layer controls. Goes beyond basic OSM implementation.
 * Version: 1.2
 * License: GPLv2 or later
 * Author: wp-customtypes.com
 * Author URI: https://wp-customtypes.com/
 * Text Domain: advanced-osm-for-toolset-maps
 * 
 * @package AOTM_Advanced_OSM_Toolset_Maps
 */

// Security check to prevent direct access
defined('ABSPATH') || exit;

/**
 * Main plugin class that handles all functionality
 */
class AOTM_Advanced_OSM_Toolset_Maps {

    /**
     * Constructor - initializes shortcode and assets
     */
    public function __construct() {
        // Register the custom shortcode with unique name
        add_shortcode('aotm-advanced-osm-map', array($this, 'aotm_shortcode_handler'));
        
        // Hook to enqueue scripts and styles
        add_action('wp_enqueue_scripts', array($this, 'aotm_enqueue_assets'));
    }

    /**
     * Gets translated label for satellite button based on site language
     * 
     * @return string Translated label for satellite view button
     */
    private function aotm_get_satellite_label_translation() {
        // Check if WPML is active for multilingual support
        if (function_exists('icl_object_id')) {
            $lang = apply_filters('wpml_current_language', NULL);
        } else {
            // Fallback to site language
            $lang = get_locale(); // Returns format like 'en_US'
            $lang = substr($lang, 0, 2); // Extract language code
        }

        // Available translations for satellite button
        $translations = array(
            'en' => 'Satellite',
            'fr' => 'Satellite',
            'de' => 'Satellit',
            'it' => 'Satellitare',
            'es' => 'Satélite',
            'zh' => '卫星',
            'hi' => 'उपग्रह',
            'ar' => 'قمر صناعي',
            'ja' => '衛星',
            'ko' => '위성',
            'ru' => 'Спутник'
        );

        // Return translation or fallback to English
        return $translations[$lang] ?? 'Satellite';
    }

    /**
     * Handles the shortcode functionality
     * 
     * @param array $atts Shortcode attributes
     * @return string Empty string (output is handled via JavaScript)
     */
    public function aotm_shortcode_handler($atts) {
        // Default shortcode attributes
        $default_atts = array(
            'map-id'          => 'map-0',
            'satellite'       => 'off',
            'satellite-button'=> 'on',
            'cluster'        => 'off',
            'cluster-color'   => '#ff5b00',
            'zoom-level'     => '',
            'zoom-cluster'   => '12',
            'labels'         => 'off',
            'roads'         => 'off',
            'grayscale'      => '0'
        );
        
        // Merge user attributes with defaults
        $atts = shortcode_atts($default_atts, $atts, 'aotm-advanced-osm-map');
        
        // Ensure grayscale value is between 0 and 1
        $grayscale = max(0, min(1, (float)$atts['grayscale']));
        
        // Prepare settings array for JavaScript
        $settings = array(
            'mapId'           => sanitize_text_field($atts['map-id']),
            'satelliteLayer'  => $atts['satellite'] === 'on' ? 'on' : 'off',
            'satelliteButton' => $atts['satellite-button'] === 'off' ? 'off' : 'on',
            'markerCluster'   => $atts['cluster'] === 'on' ? 'on' : 'off',
            'clusterColor'    => sanitize_hex_color($atts['cluster-color']),
            'zoomLevel'       => $atts['zoom-level'] !== '' ? intval($atts['zoom-level']) : null,
            'zoomCluster'     => intval($atts['zoom-cluster']),
            'mapLabels'       => $atts['labels'] === 'on' ? 'on' : 'off',
            'mapRoads'        => $atts['roads'] === 'on' ? 'on' : 'off',
            'grayscale'       => $grayscale,
            'satelliteLabel'  => $this->aotm_get_satellite_label_translation()
        );
        
        // Pass settings to JavaScript with proper escaping
        wp_add_inline_script(
            'aotm-public',
            'var aotmSettings_' . esc_js(str_replace('-', '_', $settings['mapId'])) . ' = ' . wp_json_encode($settings) . ';'
        );
        
        return ''; // Shortcode doesn't output HTML directly
    }

    /**
     * Enqueues all necessary scripts and styles
     */
    public function aotm_enqueue_assets() {
        // Don't load assets in admin area
        if (is_admin()) return;

        // Plugin's custom CSS
        wp_enqueue_style(
            'aotm-public',
            esc_url(plugin_dir_url(__FILE__) . 'assets/css/public.css'),
            array(),
            filemtime(plugin_dir_path(__FILE__) . 'assets/css/public.css')
        );

        // Plugin's main JavaScript
        wp_enqueue_script(
            'aotm-public',
            esc_url(plugin_dir_url(__FILE__) . 'assets/js/public.js'),
            array('jquery'), // Depends on jQuery
            filemtime(plugin_dir_path(__FILE__) . 'assets/js/public.js'),
            true // Load in footer
        );

        // Register marker clustering library if needed
        if (!wp_script_is('aotm-leaflet-markercluster', 'registered')) {
            wp_register_script(
                'aotm-leaflet-markercluster',
                esc_url(plugin_dir_url(__FILE__) . 'leaflet.markercluster@1.4.1/dist/leaflet.markercluster.js'),
                array('leaflet'), // Depends on Leaflet
                '1.4.1',
                true
            );
            wp_register_style(
                'aotm-leaflet-markercluster',
                esc_url(plugin_dir_url(__FILE__) . 'leaflet.markercluster@1.4.1/dist/MarkerCluster.css'),
                array(),
                '1.4.1'
            );
            wp_register_style(
                'aotm-leaflet-markercluster-default',
                esc_url(plugin_dir_url(__FILE__) . 'leaflet.markercluster@1.4.1/dist/MarkerCluster.Default.css'),
                array(),
                '1.4.1'
            );
        }

        // Always load Leaflet (required for maps)
        wp_enqueue_script('leaflet');
        wp_enqueue_style('leaflet');
    }
}

new AOTM_Advanced_OSM_Toolset_Maps();