<?php
/**
 * Plugin Name: Advanced Category and Custom Taxonomy Image
 * Plugin URI: http://github.com/sajjadh47/wp-advanced-custom-taxonomy-image
 * Description: Advanced Category and Taxonomy Image Plugin allow you to add image to your category / tag / custom taxonomy for different platforms (Mobile/ Desktop/ Tablet/ Mac/ Universal etc).
 * Version: 1.0.0
 * Author: Sajjad Hossain Sagor
 * Author URI: https://profiles.wordpress.org/sajjad67
 * Text Domain: cat-tax-image
 * Domain Path: /languages/
 * License: GPLv2 or later
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 */

// Exit if accessed directly
if ( !defined( 'ABSPATH' ) ) exit;

if( !defined( 'AD_CAT_TAX_IMG_ROOT_DIR' ) ) {
    define( 'AD_CAT_TAX_IMG_ROOT_DIR', dirname( __FILE__ ) ); // Plugin root dir
}

if( !defined( 'AD_CAT_TAX_IMG_ROOT_URL' ) ) {
    define( 'AD_CAT_TAX_IMG_ROOT_URL', plugin_dir_url( __FILE__ ) ); // Plugin root url
}

// add settings api wrapper
require AD_CAT_TAX_IMG_ROOT_DIR . '/includes/class.settings-api.php';

/**
 * Category & Taxonomy Settings Class
 *
 * @author Sajjad Hossain Sagor
 */
class AD_CAT_TAX_IMG_SETTINGS {

    private $settings_api;

    function __construct() {
        
        $this->settings_api = new WpNinjaCoder_Settings_API;

        add_action( 'admin_init', array($this, 'admin_init') );
        add_action( 'admin_menu', array($this, 'admin_menu') );
    }

    public function admin_init() {

        //set the settings
        $this->settings_api->set_sections( $this->get_settings_sections() );
        $this->settings_api->set_fields( $this->get_settings_fields() );

        //initialize settings
        $this->settings_api->admin_init();
    }

    public function admin_menu() {
    
        add_options_page( 'Advanced Category & Taxonomy Image', 'Advanced Category & Taxonomy Image', 'manage_options', 'advanced-cat-tax-image', array($this, 'render_advanced_taxonomy_image_settings') );
    }

    public function get_settings_sections() {
       
        $sections = array(
            array(
                'id'    => 'ad_cat_tax_img_basic_settings',
                'title' => __( 'General', 'cat-tax-image' )
            ),
            array(
                'id'    => 'ad_cat_tax_img_advanced_settings',
                'title' => __( 'Advanced ', 'cat-tax-image' )
            )
        );
        
        return $sections;
    }

    /**
     * Returns all the settings fields
     *
     * @return array settings fields
     */
    public function get_settings_fields() {

		$settings_fields = array(
            
            'ad_cat_tax_img_basic_settings' => array(
                array(
                    'name'    => 'enabled_taxonomies',
                    'label'   => __( 'Select Taxonomies', 'cat-tax-image' ),
                    'desc'    => __( 'Please Select Taxonomies You Want To Include Custom Image', 'cat-tax-image' ),
                    'type'    => 'multicheck',
                    'options' => $this->get_all_taxonomies()
                )    
            ),
            
            'ad_cat_tax_img_advanced_settings' => array(
                array(
                    'name'    => 'enabled_devices',
                    'label'   => __( 'Enable Device Filter', 'cat-tax-image' ),
                    'desc'    => __( 'Please Select Device Type You Want To Use Enable For', 'cat-tax-image' ),
                    'type'    => 'multicheck',
                    'default' => array('universal' => 'universal'),
                    'options' => array(
                       'android'   => 'Android',
                       'ios' 	   => 'iOS (Mac | iPhone | iPad | iPod)',
                       'windowsph' => 'Windows Phone',
                       'mobile'    => 'Mobile (Any)',
                       'tablet'    => 'Tablet',
                       'desktop'   => 'Desktop'
                    )
                )
            )
        );

        return $settings_fields;
    }

    /**
     * Render settings fields
     *
     */

    public function render_advanced_taxonomy_image_settings() {
        
        echo '<div class="wrap">';

	        $this->settings_api->show_navigation();
	       
	        $this->settings_api->show_forms();

        echo '</div>';
    }

    /**
     * Returns all the taxonomies
     *
     * @return array taxonomies
     */

    public function get_all_taxonomies(){
    	
    	$args = array();
		
		$output = 'objects'; // objects
		
		$taxonomies = get_taxonomies( $args, $output );

		$name_value_pair = array();

		// exclude some wp & woocommerce private taxonomies 
		$disabled_taxonomies = array('nav_menu', 'link_category', 'post_format','product_visibility','product_shipping_class','action-group','product_type');
		
		if ( $taxonomies ) {
		  
		  foreach ( $taxonomies  as $taxonomy ) {

		  	if ( in_array($taxonomy->name, $disabled_taxonomies )) continue;
		
		    $name_value_pair[$taxonomy->name] = ucwords( $taxonomy->label );
		
		  }

		}

		return $name_value_pair;
    }
}

/**
 * Returns option value
 *
 * @return string|array option value
 */

function ad_cat_tax_img_get_option( $option, $section, $default = '' ) {

    $options = get_option( $section );

    if ( isset( $options[$option] ) ) {
        return $options[$option];
    }

    return $default;
}

$cat_tax_settings = new AD_CAT_TAX_IMG_SETTINGS();

// register custom image field for all enabled taxonomies

function ad_cat_tax_img_register_taxonomy_img_field(){

	add_action( 'admin_enqueue_scripts', function(){
		
		wp_enqueue_media(); // load WP Media Uploader Modal scripts
		
		wp_enqueue_style( 'ad_cat_tax_img_custom_style', AD_CAT_TAX_IMG_ROOT_URL . 'assets/css/style.css', array(), false, 'all' );
		
		wp_enqueue_script( 'ad_cat_tax_img_custom_script', AD_CAT_TAX_IMG_ROOT_URL . 'assets/js/script.js', array('jquery'), time(), true );
	
	});

	/**
	 * Add Go To Settings Page in Plugin List Table
	 *
	 */
	add_filter( 'plugin_action_links_' . plugin_basename(__FILE__), function( $links ) {
	 	
	 	$plugin_actions = array();
		 	
		$plugin_actions[] = sprintf( '<a href="%s">%s</a>', admin_url( 'options-general.php?page=advanced-cat-tax-image' ), __( 'Settings', 'cat-tax-image' ) );
		 	
		$plugin_actions[] = sprintf( '<a href="%s">%s</a>', 'https://wordpress.org/plugins/wp-advanced-taxonomy-image/', __( 'Documentation', 'cat-tax-image' ) );
		
		return array_merge( $links, $plugin_actions );
	
	});

	// get all image field enabled taxonomies
	$enabled_taxonomies = ad_cat_tax_img_get_option( 'enabled_taxonomies', 'ad_cat_tax_img_basic_settings' );

	//check if any taxonomy enabled
	if (!empty( $enabled_taxonomies )) {
		
		//iterate all enabled taxonomies
		foreach ( $enabled_taxonomies  as $enabled_taxonomy ) {

			// Add shortcode column to taxonomy list
			add_filter( "manage_edit-{$enabled_taxonomy}_columns" , function( $columns ) {
				
				// add carousel shortcode column
				$columns['taxonomy_image_template_tag'] = __('Taxonomy Image Template Tag');
				
				return $columns;
			
			});

			// add shortcode column content
			add_filter( "manage_{$enabled_taxonomy}_custom_column", function( $content, $column_name, $term_id ) {
				
				// check if column is our custom column 'carousel_shortcode' 
				if ( 'taxonomy_image_template_tag' == $column_name ) {
			
					$shortcode = '<code>get_taxonomy_image('.$term_id.')</code>';			
				}
			
				return $shortcode;
			
			}, 10, 3 );

			// register all enabled taxonomy to add taxonomy field
			add_action( $enabled_taxonomy.'_add_form_fields', function(){

				$label = 'Choose File';

				// get all image field enabled devices
				$enabled_devices = ad_cat_tax_img_get_option( 'enabled_devices', 'ad_cat_tax_img_advanced_settings' );

				//check if any device enabled
				if (!empty( $enabled_devices )) {

					$html  = '<div class="form-field">
								<label for="tax_image_url_universal">Taxonomy Image For All Devices</label>';
					$html .= '<input type="text" class="tax_image_upload wpsa-url" id="tax_image_url_universal" name="tax_image_url[tax_image_url_universal]" value=""/>';
    				$html .= '<input type="button" class="button wpsa-browse" value="' . $label . '" />';
    				$html .= '<p class="description">Choose Image To Show For All Devices</p>';
					$html .= '</div>';

					echo $html;
					
					// registed custom image field for each enabled devices
					foreach ( $enabled_devices  as $enabled_device) {

						$html  = '<div class="form-field">
									<label for="tax_image_url_'.$enabled_device.'">Taxonomy Image For '.ucwords($enabled_device).'</label>';
						$html .= '<input type="text" class="tax_image_upload wpsa-url" id="tax_image_url_'.$enabled_device.'" name="tax_image_url[tax_image_url_'.$enabled_device.']" value=""/>';
        				$html .= '<input type="button" class="button wpsa-browse" value="' . $label . '" />';
        				$html .= '<p class="description">Choose Image To Show For '.ucwords($enabled_device).'</p>';
						$html .= '</div>';

						echo $html;
					}	
				
				}else{

					$html  = '<div class="form-field">
								<label for="tax_image_url_universal">Taxonomy Image For All Devices</label>';
					$html .= '<input type="text" class="tax_image_upload wpsa-url" id="tax_image_url_universal" name="tax_image_url[tax_image_url_universal]" value=""/>';
    				$html .= '<input type="button" class="button wpsa-browse" value="' . $label . '" />';
    				$html .= '<p class="description">Choose Image To Show For '.ucwords($enabled_device).'</p>';
					$html .= '</div>';

					echo $html;

				}

			});
			
			add_action( $enabled_taxonomy.'_edit_form_fields', function( $taxonomy ){

				$label = 'Choose File';

				// get all image field enabled devices
				$enabled_devices = ad_cat_tax_img_get_option( 'enabled_devices', 'ad_cat_tax_img_advanced_settings' );

				//check if any device enabled
				if (!empty( $enabled_devices )) {

					$universal_image_url = esc_url( get_term_meta( $taxonomy->term_id, 'tax_image_url_universal', true ) );

					$image = $universal_image_url != '' ? '<img src="'.$universal_image_url.'" width="100"  height="100"/>' : '';

					$html  = '<tr class="form-field">';
					$html .= '<th scope="row" valign="top"><label for="tax_image_url_universal">Taxonomy Image For All Devices</label></th><td>';
					$html .= $image;
					$html .= '<br />';
					$html .= '<input type="text" class="tax_image_upload wpsa-url" id="tax_image_url_universal" name="tax_image_url[tax_image_url_universal]" value="'.$universal_image_url.'"/>';
        			$html .= '<input type="button" class="button wpsa-browse" value="' . $label . '" />';
					$html .= '<p class="description">Choose Image To Show For All Devices</p></td></tr>';

					echo $html;
					
					// registed custom image field for each enabled devices
					foreach ( $enabled_devices  as $enabled_device) {
						
						$device_image_url = esc_url( get_term_meta( $taxonomy->term_id, 'tax_image_url_'.$enabled_device, true ) );

						$image = $device_image_url != '' ? '<img src="'.$device_image_url.'" width="100"  height="100"/>' : '';
						
						$html  = '<tr class="form-field">';
						$html .= '<th scope="row" valign="top"><label for="tax_image_url_'.$enabled_device.'">Taxonomy Image For '.ucwords($enabled_device).'</label></th><td>';
						$html .= $image;
						$html .= '<br />';
						$html .= '<input type="text" class="tax_image_upload wpsa-url" id="tax_image_url_'.$enabled_device.'" name="tax_image_url[tax_image_url_'.$enabled_device.']" value="'.$device_image_url.'"/>';
        				$html .= '<input type="button" class="button wpsa-browse" value="' . $label . '" />';
        				$html .= '<p class="description">Choose Image To Show For '.ucwords($enabled_device).'</p>';

						echo $html;
					}	
				
				}else{

					$universal_image_url = esc_url( get_term_meta( $taxonomy->term_id, 'tax_image_url_universal', true ) );

					$image = $universal_image_url != '' ? '<img src="'.$universal_image_url.'" width="100"  height="100"/>' : '';

					$html  = '<tr class="form-field">';
					$html .= '<th scope="row" valign="top"><label for="tax_image_url_universal">Taxonomy Image For All Devices</label></th><td>';
					$html .= $image;
					$html .= '<br />';
					$html .= '<input type="text" class="tax_image_upload wpsa-url" id="tax_image_url_universal" name="tax_image_url[tax_image_url_universal]" value="'.$universal_image_url.'"/>';
        			$html .= '<input type="button" class="button wpsa-browse" value="' . $label . '" />';
					$html .= '<p class="description">Choose Image To Show For All Devices</p></td></tr>';

				}

			});
		}
	}
}

ad_cat_tax_img_register_taxonomy_img_field();

//edit_$taxonomy
add_action('edit_term','ad_cat_tax_img_url_save');

add_action('create_term','ad_cat_tax_img_url_save');

// save taxonomy values
function ad_cat_tax_img_url_save($term_id){
    
    if ( isset( $_POST['tax_image_url'] ) && !empty( $_POST['tax_image_url'] ) ){
        
        if (is_array( $_POST['tax_image_url'] )) {

        	foreach ( $_POST['tax_image_url'] as $name => $value ) {
        		
        		update_term_meta( $term_id, $name, esc_url( $value ) );

        	}
        }
    }
}

// register template tag function to show taxonomy image
function get_taxonomy_image( $term_id = '', $return_img_tag = false, $class = array() ){

	require AD_CAT_TAX_IMG_ROOT_DIR. '/includes/Mobile_Detect.php';

	$detect = new Mobile_Detect;

	$term_id = $term_id == '' ? get_queried_object()->term_id : $term_id;

	// get all image field enabled taxonomies
	$enabled_taxonomies = ad_cat_tax_img_get_option( 'enabled_taxonomies', 'ad_cat_tax_img_basic_settings' );

	// get all image field enabled devices
	$enabled_devices = ad_cat_tax_img_get_option( 'enabled_devices', 'ad_cat_tax_img_advanced_settings' );

	//check if any taxonomy enabled
	if (!empty( $enabled_taxonomies )) {

		$device_image_url = get_term_meta( $term_id, 'tax_image_url_universal', true );
			
		//check if any device enabled
		if (!empty( $enabled_devices )) {

			// registed custom image field for each enabled devices
			foreach ( $enabled_devices  as $enabled_device ) {

				// available devices
                //'android'   => 'Android',
                //'ios' 	  => 'iOS (Mac, iPhone, iPad, iPod)',
                //'windowsph' => 'Windows Phone',
				//'mobile'    => 'Mobile',
                //'tablet'    => 'Tablet',
                //'desktop'   => 'Desktop'
						
				if( $enabled_device == 'android' && $detect->isAndroidOS() ){

					$device_image_url = get_term_meta( $term_id, 'tax_image_url_'.$enabled_device, true );

					break; //android match found no need to check further

				}
				else if( $enabled_device == 'iphone' && $detect->isiOS() ){

					$device_image_url = get_term_meta( $term_id, 'tax_image_url_'.$enabled_device, true );

					break; //iOS match found no need to check further
				}
				else if( $enabled_device == 'windowsph' && $detect->version('Windows Phone') ){

					$device_image_url = get_term_meta( $term_id, 'tax_image_url_'.$enabled_device, true );

					break; //Windows Phone match found no need to check further
				}
				else if( $enabled_device == 'mobile' && $detect->isMobile() ){

					$device_image_url = get_term_meta( $term_id, 'tax_image_url_'.$enabled_device, true );

					break; //Any Mobile match found no need to check further
				}
				else if( $enabled_device == 'tablet' && $detect->isTablet() ){

					$device_image_url = get_term_meta( $term_id, 'tax_image_url_'.$enabled_device, true );

					break; //Any Mobile match found no need to check further
				}
				else if( $enabled_device == 'desktop' ){

					$device_image_url = get_term_meta( $term_id, 'tax_image_url_'.$enabled_device, true );

					break; //match found no need to check further
				}
			}
		}
	
	}else{

		$device_image_url = 'Please Enable Taxonomies First!';

	}

	$classes = !empty($class) ? implode(' ', $class) : '';

	$result = $return_img_tag ? "<img src='".esc_url( $device_image_url )."' class='".$classes."'>" : esc_url( $device_image_url );
	
	return !empty($device_image_url) ? $result : 'Please Upload Image First!';
}

?>