<?php

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}
class Modula_Albums_Admin {

    /**
     * Primary class constructor.
     *
     * @since 1.0.0
     */
    function __construct() {

        add_action('wp_ajax_modula_albums_save_galleries', array($this, 'save_galleries'));
        add_action('wp_ajax_modula_albums_save_gallery', array($this, 'save_gallery'));

        // Custom Field
        add_filter( 'modula_field_type_album-lightbox-info_format', array( $this, 'field_format' ), 10, 2 );
        add_filter( 'modula_render_album-lightbox-info_field_type', array( $this, 'render_field' ) );

        // Add Modula Albums debug information
	    add_filter( 'modula_debug_information', array( $this, 'debug_information' ), 35 );

        // Add disable srcset option & defaults
        add_filter( 'modula_troubleshooting_defaults', array( $this, 'remove_srcset_default') );
        add_filter( 'modula_troubleshooting_fields', array( $this, 'remove_srcset_field') );

    }

    private function sanitize_gallery($image) {

        $new_image = array();

        // This list will not contain id because we save our images based on image id.
        $image_attributes = apply_filters('modula_album_gallery_attributes', array(
            'id',
            'alt',
            'title',
            'caption',
            'width',
            'height',
            'cover',
            'customurl',
            'shuffleCover'
        ));

        foreach ($image_attributes as $attribute) {
            if (isset($image[$attribute])) {

                switch ($attribute) {
                    case 'alt':
                        $new_image[$attribute] = sanitize_text_field($image[$attribute]);
                        break;
                    case 'customurl':
                        $new_image[$attribute] = esc_url($image[$attribute]);
                        break;
                    case 'cover':
	                case 'shuffleCover' :
	                	$new_image[$attribute] = sanitize_text_field($image[$attribute]);
	                	break;
                    case 'id':
                    case 'width':
                    case 'height':
                        $new_image[$attribute] = absint($image[$attribute]);
                        break;
                    case 'title':
                    case 'caption' :
                        $new_image[$attribute] = wp_filter_post_kses($image[$attribute]);
                        break;
                    default:
                        $new_image[$attribute] = apply_filters('modula_album_gallery_field_sanitization', sanitize_text_field($image[$attribute]), $image[$attribute], $attribute);
                        break;
                }

            } else {
                $new_image[$attribute] = '';
            }
        }

        return $new_image;

    }

    /**
     * Save selected galleries in Modula Albums
     */
    public function save_galleries() {

        $nonce = $_POST['_wpnonce'];
        if (!wp_verify_nonce($nonce, 'modula-ajax-save')) {
            wp_send_json(array('status' => 'failed'));
        }

        if (!isset($_POST['album'])) {
            wp_send_json(array('status' => 'failed'));
        }

        $album_id = absint($_POST['album']);

        if ('modula-album' != get_post_type($album_id)) {
            wp_send_json(array('status' => 'failed'));
        }

        if (!isset($_POST['galleries'])) {
            wp_send_json(array('status' => 'failed'));
        }

        $old_galleries = get_post_meta($album_id, 'modula-album-galleries', true);
        $galleries  = json_decode(stripslashes($_POST['galleries']), true);
        $new_galleries = array();

        if (is_array($galleries)) {
            foreach ($galleries as $gallery) {
                $new_galleries[] = $this->sanitize_gallery($gallery);
            }
        }

        update_post_meta($album_id, 'modula-album-galleries', $new_galleries);
        wp_send_json(array('status' => 'succes'));

    }

    /**
     * Save gallery in Modula Album
     */
    public function save_gallery() {

        $nonce = $_POST['_wpnonce'];
        if (!wp_verify_nonce($nonce, 'modula-ajax-save')) {
            wp_send_json(array('status' => 'failed'));
        }

        if (!isset($_POST['album'])) {
            wp_send_json(array('status' => 'failed'));
        }

        $album_id = absint($_POST['album']);

        if ('modula-album' != get_post_type($album_id)) {
            wp_send_json(array('status' => 'failed'));
        }

        if (!isset($_POST['gallery'])) {
            wp_send_json(array('status' => 'failed'));
        }

        $gallery          = json_decode(stripslashes($_POST['gallery']), true);
        $update_galleries = array();

        $old_galleries = get_post_meta($album_id, 'modula-album-galleries', true);

        if ($old_galleries && is_array($old_galleries)) {

            foreach ($old_galleries as $key => $old_gallery) {
                if ($old_gallery['id'] == $gallery['id']) {
                    $old_galleries[$key] = $this->sanitize_gallery($gallery);
                }
            }
            $update_galleries = $old_galleries;
        } else {
            $update_galleries[$gallery['id']] =  $this->sanitize_gallery($gallery);
        }


        update_post_meta($album_id, 'modula-album-galleries', $update_galleries);
        wp_send_json(array('status' => 'succes'));

    }

    public function field_format( $format, $field ){
        $format = '<tr data-container="' . esc_attr( $field['id'] ) . '"><td colspan="2" style="padding-left:0;"><label class="th-label">%s</label>%s<div>%s</div></td></tr>';
        return $format;
    }

    public function render_field(){

        $html = '<div class="modula-album-url-settings">';
        $html .= '<ol>';
        $html .= '<li><p>Will redirect to a custom URL if one is set in Gallery Settings.</p></li>';
        $html .= '<li><p>Will redirect to a gallery URL if <a href="'.admin_url( 'edit.php?post_type=modula-gallery&page=modula' ).'">standalone</a> is active.</p></li>';
        $html .= '</ol>';
        $html .= '</div>';
        return $html;
    }

	/**
	 * Add debug information
	 *
	 * @param $info
	 *
	 * @return mixed
	 * @since 1.0.8
	 */
    public function debug_information($info){

    	$standalone = get_option('modula_standalone');

    	$info['modula_albums_version'] = array(
		    'label' => __( 'Modula Albums Version', 'modula-albums' ),
		    'value' => MODULA_ALBUMS_VERSION,
		    'debug' => esc_html('Albums version ' . MODULA_ALBUMS_VERSION),
	    );

	    $info['total_albums'] = array(
		    'label' => __( 'Total albums', 'modula-albums' ),
		    'value' => esc_html( count( modula_get_albums() ) ),
		    'debug' => esc_html( 'Total albums ' . count( modula_get_albums() ) ),
	    );

	    $info['albums_standalone'] = array(
		    'label' => __( 'Albums standalone', 'modula-albums' ),
		    'value' => ( $standalone && isset( $standalone['album']['enable_rewrite'] ) && 'enabled' == $standalone['album']['enable_rewrite'] ) ? esc_html__( 'Yes', 'modula-albums' ) : esc_html__( 'No', 'modula-albums' ),
		    'debug' => ( $standalone && isset( $standalone['album']['enable_rewrite'] ) && 'enabled' == $standalone['album']['enable_rewrite'] ) ? esc_html( 'yes' ) : esc_html( 'no'),
	    );

	    $info['albums_standalone_slug'] = array(
		    'label' => __( 'Albums standalone slug', 'modula-albums' ),
		    'value' => ( $standalone && isset( $standalone['album']['slug'] ) && '' != $standalone['album']['slug'] ) ? esc_html( $standalone['album']['slug'] ) : esc_html__( 'None', 'modula-albums' ),
		    'debug' => ( $standalone && isset( $standalone['album']['slug'] ) && '' != $standalone['album']['slug'] ) ? esc_html($standalone['album']['slug'] ) : esc_html( 'None'),
	    );

	    $info['galleries_standalone'] = array(
		    'label' => __( 'Galleries standalone', 'modula-albums' ),
		    'value' => ( $standalone && isset( $standalone['gallery']['enable_rewrite'] ) && 'enabled' == $standalone['gallery']['enable_rewrite'] ) ? esc_html__( 'Yes', 'modula-albums' ) : esc_html__( 'No', 'modula-albums' ),
		    'debug' => ( $standalone && isset( $standalone['gallery']['enable_rewrite'] ) && 'enabled' == $standalone['gallery']['enable_rewrite'] ) ? esc_html( 'yes') : esc_html( 'no' )
	    );

	    $info['galleries_standalone_slug'] = array(
		    'label' => __( 'Galleries standalone slug', 'modula-albums' ),
		    'value' => ( $standalone && isset( $standalone['gallery']['slug'] ) && '' != $standalone['gallery']['slug'] ) ? esc_html($standalone['gallery']['slug'] ) : esc_html__( 'None', 'modula-albums' ),
		    'debug' => ( $standalone && isset( $standalone['gallery']['slug'] ) && '' != $standalone['gallery']['slug'] ) ? esc_html( $standalone['gallery']['slug'] ) : esc_html( 'None' ),
	    );

    	return $info;
    }

    public function remove_srcset_default( $defaults ) {
        $defaults['remove_srcset'] = false;

        return $defaults;
    }

    public function remove_srcset_field( $fields ) {
        $fields['remove_srcset'] = array (
            'label'       => esc_html__( 'Remove srcset', 'modula-albums'),
            'type'        => 'toggle',
            'description' =>  esc_html__( 'Toggle this option if you want to remove srcset from all your albums'),
            'priority' => 10,
        );

        return $fields;
    }

}

new Modula_Albums_Admin();