<?php

// Post Fields

$author_field = new Text();
$create_date_field = new Date();
$post_photo_field = new Image();

$b->field_register("author", $author_field);
$b->field_register("create_date", $create_date_field);
$b->field_register("post_photo", $post_photo_field);

$b->router_add("/post/%", function () { preload_post(); }, array("get"));

function preload_post()
{
    global $b;
    $slug = $b->router_get_segment(1);

    $search = new Search(array(
        "class" => "Post",
        "terms" => array("item_slug" => $slug)
    ));

    $pages = $search->collect();

    if(!count($pages)) {
        http_response_code(404);
        $b->template_load("404.php");
        return;
    }

    $page = $pages[0];
    $b->ls_set_key("page", $page);

    $title = $page->get_prop("seo_title") ?? $page->get_item_name();
    $b->title_set($title);
    $b->meta_add("description", $page->get_prop("seo_description"));
    $b->meta_add("keywords", $page->get_prop("seo_keywords"));
    $b->meta_add("viewport", "width=device-width, user-scalable=no");
    $b->link_add(array("rel" => "canonical", "href" => $b->router_get_canonical_uri()));

    $parent = $page->get_parent();
    $breadcrumbs = array();

    if($parent) {
        $parent_title = $parent->get_item_name();
        $parent_slug = $parent->get_item_slug();
        $breadcrumbs[] = array($parent_title, "/posts/" . $parent_slug . "/");
    }

    $breadcrumbs[] = array($page->get_item_name(), $b->router_get_canonical_uri());
    $b->ls_set_key("breadcrumbs", $breadcrumbs);
    $b->template_load("pages/post.php");
}

$b->router_add("/posts/%", function () { preload_posts(); }, array("get"));

function preload_posts()
{
    global $b;
    $slug = $b->router_get_segment(1);

    $search = new Search(array(
        "class" => "Category",
        "terms" => array("item_slug" => $slug)
    ));

    $pages = $search->collect();

    if(!count($pages)) {
        http_response_code(404);
        $b->template_load("404.php");
        return;
    }

    $page = $pages[0];
    $b->ls_set_key("page", $page);

    $title = $page->get_prop("seo_title") ?? $page->get_item_name();
    $b->title_set($title);
    $b->meta_add("description", $page->get_prop("seo_description"));
    $b->meta_add("keywords", $page->get_prop("seo_keywords"));

    $b->meta_add("viewport", "width=device-width, user-scalable=no");
    $b->link_add(array("rel" => "canonical", "href" => $b->router_get_canonical_uri()));

    $breadcrumbs = array();
    $breadcrumbs[] = array($page->get_item_name(), $b->router_get_canonical_uri());
    $b->ls_set_key("breadcrumbs", $breadcrumbs);
    $b->template_load("pages/posts.php");
}

function posts_search($params): array
{
    global $b;
    $query = posts_query($params);
    $result = $b->db_query($query, array(), true);
    $items = array();
    foreach ($result as $key => $item_db) {
        $item = new $item_db["item_class"]($item_db["item_id"]);
        $item->set_parent($item_db["item_parent"], true);
        $items[] = $item;
    }
    return $items;
}

function posts_search_count($params)
{
    global $b;
    $count_query = posts_query($params, true);
    $result = $b->db_query($count_query, array(), true);
    return $result[0]["count"];
}

function posts_query($params, $count = false): string
{
    $category_id = $params["category_id"];

    $page = intval($params["page"]) ?? 1;
    $products_per_page = intval($params["products_per_page"]) ?? 30;
    $offset = intval(($page - 1) * $products_per_page);
    $limit = " LIMIT $offset, $products_per_page";
    $select = "*";

    if($count) {
        $limit = "";
        $select = "COUNT(*) as `count`";
    }

    $parent_where = " AND (`item_parent` = " . $category_id. " OR EXISTS(SELECT 1 FROM `bive_items_links` WHERE `bive_items_links`.`parent_item_id` = " . $category_id . " AND `bive_items`.`item_id` = `bive_items_links`.`child_item_id`))";
    return "SELECT " . $select . " FROM `bive_items` WHERE `item_class` = 'Post' " . $parent_where  . $limit;
}