<?php

define('FIFU_AUTHOR', get_option('fifu_author') ? get_option('fifu_author') : 77777);

add_filter('get_attached_file', 'fifu_replace_attached_file', 10, 2);

function fifu_replace_attached_file($att_url, $att_id) {
    return fifu_process_url($att_url, $att_id);
}

function fifu_process_url($att_url, $att_id) {
    if (strpos($att_url, "https://thumbnails.odycdn.com") === 0 ||
            strpos($att_url, "https://res.cloudinary.com") === 0 ||
            strpos($att_url, "https://i0.wp.com") === 0 ||
            strpos($att_url, "https://i1.wp.com") === 0 ||
            strpos($att_url, "https://i2.wp.com") === 0 ||
            strpos($att_url, "https://i3.wp.com") === 0)
        return $att_url;

    if (!$att_id)
        return $att_url;

    $att_post = get_post($att_id);

    if (!$att_post)
        return $att_url;

    // internal
    if ($att_post->post_author != FIFU_AUTHOR)
        return $att_url;

    $url = get_post_meta($att_id, '_wp_attached_file', true); // to avoid wp_get_attachment_url() infinite loop

    fifu_fix_legacy($url, $att_id);

    return fifu_process_external_url($url, $att_id, null);
}

function fifu_process_external_url($url, $att_id, $size) {
    return fifu_add_url_parameters($url, $att_id, $size);
}

function fifu_fix_legacy($url, $att_id) {
    if (strpos($url, ';') === false)
        return;
    $att_url = get_post_meta($att_id, '_wp_attached_file');
    $att_url = is_array($att_url) ? $att_url[0] : $att_url;
    if (fifu_starts_with($att_url, ';http') || fifu_starts_with($att_url, ';/'))
        update_post_meta($att_id, '_wp_attached_file', $url);
}

add_filter('wp_get_attachment_url', 'fifu_replace_attachment_url', 10, 2);

function fifu_replace_attachment_url($att_url, $att_id) {
    if ($att_url)
        return fifu_process_url($att_url, $att_id);
    return $att_url;
}

add_filter('posts_where', 'fifu_query_attachments');

function fifu_query_attachments($where) {
    global $wpdb;
    if (fifu_is_web_story() || (isset($_POST['action']) && ($_POST['action'] == 'query-attachments' || $_POST['action'] == 'get-attachment')))
        $where .= ' AND ' . $wpdb->prefix . 'posts.post_author <> ' . FIFU_AUTHOR . ' ';
    return $where;
}

add_filter('posts_where', function ($where, \WP_Query $q) {
    global $wpdb;
    if (fifu_is_web_story() || (is_admin() && $q->is_main_query() && strpos($where, 'attachment') !== false))
        $where .= ' AND ' . $wpdb->prefix . 'posts.post_author <> ' . FIFU_AUTHOR . ' ';
    return $where;
}, 10, 2);

add_filter('wp_get_attachment_image_src', 'fifu_replace_attachment_image_src', 10, 3);

function fifu_replace_attachment_image_src($image, $att_id, $size) {
    if (!$image || !$att_id)
        return $image;

    $att_post = get_post($att_id);

    if (!$att_post)
        return $image;

    // internal
    if ($att_post->post_author != FIFU_AUTHOR)
        return $image;

    global $FIFU_SESSION;
    $prev_url = null;
    if (isset($FIFU_SESSION['cdn-new-old']) && isset($image[0]) && isset($FIFU_SESSION['cdn-new-old'][$image[0]]))
        $prev_url = $FIFU_SESSION['cdn-new-old'][$image[0]];

    if (!isset($FIFU_SESSION['att_img_src']))
        $FIFU_SESSION['att_img_src'] = array();

    $image[0] = fifu_process_url($image[0], $att_id);

    $original_url = fifu_main_image_url(get_queried_object_id(), true);
    if (fifu_should_hide() && ($original_url == $image[0] || ($prev_url && $prev_url == $original_url))) {
        if (!in_array($original_url, $FIFU_SESSION['att_img_src'])) {
            $aux = is_array($size) ? implode(',', $size) : $size;
            $FIFU_SESSION['att_img_src'][] = $original_url . $aux;
            return null;
        }
    }

    $FIFU_SESSION['att_img_src'][] = $original_url;

    if (fifu_is_from_speedup($image[0]))
        $image = fifu_speedup_get_url($image, $size, $att_id);

    // photon
    if (fifu_is_on('fifu_photon') && !fifu_jetpack_blocked($image[0]))
        $image = fifu_get_photon_url($image, $size, $att_id);

    // fallback
    if ($image[1] == 1 && $image[2] == 1) {
        $image[1] = null;
        $image[2] = null;
    }

    return $image;
}

function fifu_add_size($image, $size) {
    // fix lightbox
    if ($size == 'woocommerce_single')
        return $image;

    if (!is_array($size)) {
        if (function_exists('wp_get_registered_image_subsizes')) {
            $width = null;
            $height = null;
            $crop = null;

            if (isset(wp_get_registered_image_subsizes()[$size]['width']))
                $width = wp_get_registered_image_subsizes()[$size]['width'];

            if (isset(wp_get_registered_image_subsizes()[$size]['height']))
                $height = wp_get_registered_image_subsizes()[$size]['height'];

            if (isset(wp_get_registered_image_subsizes()[$size]['crop']))
                $crop = wp_get_registered_image_subsizes()[$size]['crop'];

            if (!$width && !$height)
                return $image;

            $image[1] = $width;
            $image[2] = $height == 9999 ? null : $height;
            $image[3] = $crop;
        }
    } else {
        $image[1] = $size[0];
        $image[2] = $size[1];
    }
    return $image;
}

function fifu_get_photon_url($image, $size, $att_id) {
    $image = fifu_add_size($image, $size);
    $w = $image[1];
    $h = $image[2];

    $args = array();

    if ($w > 0 && $h > 0) {
        $args['resize'] = $w . ',' . $h;
    } elseif ($w > 0) {
        $args['resize'] = $w;
        $args['w'] = $w;
    } elseif ($h > 0) {
        $args['resize'] = $h;
        $args['h'] = $h;
    } else {
        
    }

    $image[0] = fifu_jetpack_photon_url($image[0], $args);
    $image[0] = fifu_process_external_url($image[0], $att_id, $size);

    return $image;
}

add_action('template_redirect', 'fifu_action', 10);

function fifu_action() {
    ob_start("fifu_callback");
}

function fifu_callback($buffer) {
    global $FIFU_SESSION;

    if (empty($buffer))
        return;

    /* plugins: Oxygen, Bricks */
    if (isset($_REQUEST['ct_builder']) || isset($_REQUEST['bricks']) || isset($_REQUEST['fb-edit']))
        return $buffer;

    /* img */

    $srcType = "src";
    $imgList = array();
    preg_match_all('/<img[^>]*>/', $buffer, $imgList);

    foreach ($imgList[0] as $imgItem) {
        preg_match('/(' . $srcType . ')([^\'\"]*[\'\"]){2}/', $imgItem, $src);
        if (!$src)
            continue;
        $del = substr($src[0], - 1);
        $url = fifu_normalize(explode($del, $src[0])[1]);
        $post_id = null;

        // get parameters
        $data = null;

        if (isset($FIFU_SESSION[$url])) {
            $data = $FIFU_SESSION[$url];
        } else {
            if (isset($FIFU_SESSION['cdn-new-old'][$url])) {
                $prev_url = $FIFU_SESSION['cdn-new-old'][$url];
                if (isset($FIFU_SESSION[$prev_url])) {
                    $data = $FIFU_SESSION[$prev_url];
                }
            }
        }

        if (!$data)
            continue;

        if (strpos($imgItem, 'fifu-replaced') !== false)
            continue;

        $post_id = $data['post_id'];
        $att_id = $data['att_id'];
        $featured = $data['featured'];
        $is_category = $data['category'];
        $theme_width = isset($data['theme-width']) ? $data['theme-width'] : null;
        $theme_height = isset($data['theme-height']) ? $data['theme-height'] : null;

        if ($featured) {
            // add featured
            $newImgItem = str_replace('<img ', '<img fifu-featured="' . $featured . '" ', $imgItem);

            // add category 
            if ($is_category)
                $newImgItem = str_replace('<img ', '<img fifu-category="1" ', $newImgItem);

            // add post_id
            if (get_post_type($post_id) == 'product')
                $newImgItem = str_replace('<img ', '<img product-id="' . $post_id . '" ', $newImgItem);
            else
                $newImgItem = str_replace('<img ', '<img post-id="' . $post_id . '" ', $newImgItem);

            // add theme sizes
            if ($theme_width && $theme_height) {
                $newImgItem = str_replace('<img ', '<img theme-width="' . $theme_width . '" ', $newImgItem);
                $newImgItem = str_replace('<img ', '<img theme-height="' . $theme_height . '" ', $newImgItem);
            }

            // speed up (doesn't work with ajax calls)
            if (fifu_is_from_speedup($url)) {
                $newImgItem = str_replace('<img ', '<img srcset="' . fifu_speedup_get_set($url) . '" ', $newImgItem);
                $newImgItem = str_replace('<img ', '<img sizes="(max-width:' . $theme_width . 'px) 100vw, ' . $theme_width . 'px" ', $newImgItem);
            }

            $buffer = str_replace($imgItem, fifu_replace($newImgItem, $post_id, null, null, null), $buffer);
        }
    }

    /* background-image */

    $imgList = array();
    preg_match_all('/<[^>]*background-image[^>]*>/', $buffer, $imgList);
    foreach ($imgList[0] as $imgItem) {
        if (strpos($imgItem, 'style=') === false || strpos($imgItem, 'url(') === false)
            continue;

        $mainDelimiter = substr(explode('style=', str_replace('\\', '', $imgItem))[1], 0, 1);
        $subDelimiter = substr(explode('url(', str_replace('\\', '', $imgItem))[1], 0, 1);
        if (in_array($subDelimiter, array('"', "'", ' ')))
            $url = preg_split('/[\'\" ]{1}\)/', preg_split('/url\([\'\" ]{1}/', $imgItem, -1)[1], -1)[0];
        else {
            $url = preg_split('/\)/', preg_split('/url\(/', $imgItem, -1)[1], -1)[0];
            $subDelimiter = '';
        }

        $newImgItem = $imgItem;

        $url = fifu_normalize($url);
        if (isset($FIFU_SESSION[$url])) {
            $data = $FIFU_SESSION[$url];

            if (strpos($imgItem, 'fifu-replaced') !== false)
                continue;

            $att_id = $data['att_id'];

            $post_id = $data['post_id'];
            $newImgItem = str_replace('>', ' ' . 'post-id="' . $post_id . '">', $newImgItem);
        }

        if ($newImgItem != $imgItem)
            $buffer = str_replace($imgItem, $newImgItem, $buffer);
    }

    return $buffer;
}

add_filter('wp_get_attachment_metadata', 'fifu_filter_wp_get_attachment_metadata', 10, 2);

function fifu_filter_wp_get_attachment_metadata($data, $att_id) {
    return $data;
}

function fifu_add_url_parameters($url, $att_id, $size) {
    global $FIFU_SESSION;

    // avoid duplicated call
    if (isset($FIFU_SESSION[$url]))
        return $url;

    $post_id = get_post($att_id)->post_parent;

    if (!$post_id)
        return $url;

    // "categories" page
    if (function_exists('get_current_screen') && isset(get_current_screen()->parent_file) && get_current_screen()->parent_file == 'edit.php?post_type=product' && get_current_screen()->id == 'edit-product_cat')
        return fifu_optimized_column_image($url);

    $post_thumbnail_id = get_post_thumbnail_id($post_id);

    $is_category = false;
    if (!$post_thumbnail_id) {
        $post_thumbnail_id = get_term_meta($post_id, 'thumbnail_id', true);
        if ($post_thumbnail_id)
            $is_category = true;
    }

    $featured = $post_thumbnail_id == $att_id ? 1 : 0;

    if (!$featured)
        return $url;

    // avoid duplicated call
    if (isset($FIFU_SESSION[$url]))
        return $url;

    $parameters = array();
    $parameters['att_id'] = $att_id;
    $parameters['post_id'] = $post_id;
    $parameters['featured'] = $featured;
    $parameters['category'] = $is_category;

    // theme size
    if ($size && !is_array($size) && function_exists('wp_get_registered_image_subsizes')) {
        $width = null;
        $height = null;
        if (isset(wp_get_registered_image_subsizes()[$size]['width']))
            $width = wp_get_registered_image_subsizes()[$size]['width'];
        if (isset(wp_get_registered_image_subsizes()[$size]['height']))
            $height = wp_get_registered_image_subsizes()[$size]['height'];
        if ($width && $height) {
            $parameters['theme-width'] = $width;
            $parameters['theme-height'] = $height;
        }
    }

    $FIFU_SESSION[$url] = $parameters;

    if (fifu_is_from_speedup($url)) {
        $FIFU_SESSION['fifu-cloud'][$url] = fifu_speedup_get_set($url);
        wp_enqueue_script('fifu-cloud', plugins_url('/html/js/cloud.js', __FILE__), array('jquery'), fifu_version_number_enq());
        wp_localize_script('fifu-cloud', 'fifuCloudVars', [
            'srcsets' => $FIFU_SESSION['fifu-cloud'],
        ]);
    }

    return $url;
}

function fifu_get_photon_args($w, $h) {
    $args = array();
    if ($w > 0 && $h > 0) {
        $args['resize'] = $w . ',' . $h;
    } elseif ($w > 0) {
        $args['resize'] = $w;
        $args['w'] = $w;
    } elseif ($h > 0) {
        $args['resize'] = $h;
        $args['h'] = $h;
    } else {
        $args = null;
    }
    return $args;
}

function fifu_add_parameters_single_post($post_id) {
    $att_id = get_post_thumbnail_id($post_id);
    $url = get_post_meta($att_id, '_wp_attached_file', true);
    if ($url)
        fifu_add_url_parameters($url, $att_id, null);
}

// dont load remote image data in the media library when called from block editor

function custom_get_attachment_intercept() {
    $att_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : 0;

    if ($att_id > 0) {
        if (fifu_is_remote_image($att_id)) {
            $response = array(
                'success' => false,
                'data' => array(),
            );
            wp_die();
        }
    }
}

add_action('wp_ajax_get-attachment', 'custom_get_attachment_intercept', 0);