<?php
/**
 * COPS (Calibre OPDS PHP Server) class file
 *
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     Sébastien Lucas <sebastien@slucas.fr>
 */

require_once dirname(__FILE__) . '/../base.php';

class JSONRenderer
{
    /**
     * @param Book $book
     * @return array
     */
    public static function getBookContentArray ($book) {
        global $config;
        $i = 0;
        $preferedData = array ();
        foreach ($config['cops_prefered_format'] as $format)
        {
            if ($i == 2) { break; }
            if ($data = $book->getDataFormat ($format)) {
                $i++;
                array_push ($preferedData, array ("url" => $data->getHtmlLink (),
                  "viewUrl" => $data->getViewHtmlLink (), "name" => $format));
            }
        }

        $publisher = $book->getPublisher();
        if (is_null ($publisher)) {
            $pn = "";
            $pu = "";
        } else {
            $pn = $publisher->name;
            $link = new LinkNavigation ($publisher->getUri ());
            $pu = $link->hrefXhtml ();
        }

        $serie = $book->getSerie ();
        if (is_null ($serie)) {
            $sn = "";
            $scn = "";
            $su = "";
        } else {
            $sn = $serie->name;
            $scn = str_format (localize ("content.series.data"), $book->seriesIndex, $serie->name);
            $link = new LinkNavigation ($serie->getUri ());
            $su = $link->hrefXhtml ();
        }
        $cc = $book->getCustomColumnValues($config['cops_calibre_custom_column_list'], true);

        return array ("id" => $book->id,
                      "hasCover" => $book->hasCover,
                      "preferedData" => $preferedData,
                      "rating" => $book->getRating (),
                      "publisherName" => $pn,
                      "publisherurl" => $pu,
                      "pubDate" => $book->getPubDate (),
                      "languagesName" => $book->getLanguages (),
                      "authorsName" => $book->getAuthorsName (),
                      "tagsName" => $book->getTagsName (),
                      "seriesName" => $sn,
                      "seriesIndex" => $book->seriesIndex,
                      "seriesCompleteName" => $scn,
                      "seriesurl" => $su,
                      "customcolumns_list" => $cc);
    }

    /**
     * @param Book $book
     * @return array
     */
    public static function getFullBookContentArray ($book) {
        global $config;
        $out = self::getBookContentArray ($book);
        $database = GetUrlParam (DB);

        $out ["coverurl"] = Data::getLink ($book, "jpg", "image/jpeg", Link::OPDS_IMAGE_TYPE, "cover.jpg", NULL)->hrefXhtml ();
        $out ["thumbnailurl"] = Data::getLink ($book, "jpg", "image/jpeg", Link::OPDS_THUMBNAIL_TYPE, "cover.jpg", NULL, NULL, $config['cops_html_thumbnail_height'] * 2)->hrefXhtml ();
        $out ["content"] = $book->getComment (false);
        $out ["datas"] = array ();
        $dataKindle = $book->GetMostInterestingDataToSendToKindle ();
        foreach ($book->getDatas() as $data) {
            $tab = array ("id" => $data->id,
                "format" => $data->format, 
                "url" => $data->getHtmlLink (),
                "viewUrl" => $data->getViewHtmlLink (),
                "mail" => 0, 
                "readerUrl" => "");
            if (!empty ($config['cops_mail_configuration']) && !is_null ($dataKindle) && $data->id == $dataKindle->id) {
                $tab ["mail"] = 1;
            }
            if ($data->format == "EPUB") {
                $tab ["readerUrl"] = "epubreader.php?data={$data->id}&db={$database}";
            }
            array_push ($out ["datas"], $tab);
        }
        $out ["authors"] = array ();
        foreach ($book->getAuthors () as $author) {
            $link = new LinkNavigation ($author->getUri ());
            array_push ($out ["authors"], array ("name" => $author->name, "url" => $link->hrefXhtml ()));
        }
        $out ["tags"] = array ();
        foreach ($book->getTags () as $tag) {
            $link = new LinkNavigation ($tag->getUri ());
            array_push ($out ["tags"], array ("name" => $tag->name, "url" => $link->hrefXhtml ()));
        }
        $out ["customcolumns_preview"] = $book->getCustomColumnValues($config['cops_calibre_custom_column_preview'], true);

        return $out;
    }

    public static function getContentArray ($entry) {
        if ($entry instanceof EntryBook) {
            $out = array ( "title" => $entry->title);
            $out ["book"] = self::getBookContentArray ($entry->book);
            return $out;
        }
        return array ( "title" => $entry->title, "content" => $entry->content, "navlink" => $entry->getNavLink (), "number" => $entry->numberOfElement );
    }

    public static function getContentArrayTypeahead ($page) {
        $out = array ();
        foreach ($page->entryArray as $entry) {
            if ($entry instanceof EntryBook) {
                array_push ($out, array ("class" => $entry->className, "title" => $entry->title, "navlink" => $entry->book->getDetailUrl ()));
            } else {
                if (empty ($entry->className) xor Base::noDatabaseSelected ()) {
                    array_push ($out, array ("class" => $entry->className, "title" => $entry->title, "navlink" => $entry->getNavLink ()));
                } else {
                    array_push ($out, array ("class" => $entry->className, "title" => $entry->content, "navlink" => $entry->getNavLink ()));
                }
            }
        }
        return $out;
    }

    public static function addCompleteArray ($in) {
        global $config;
        $out = $in;

        $out ["c"] = array ("version" => VERSION, "i18n" => array (
                           "coverAlt" => localize("i18n.coversection"),
                           "authorsTitle" => localize("authors.title"),
                           "bookwordTitle" => localize("bookword.title"),
                           "tagsTitle" => localize("tags.title"),
                           "seriesTitle" => localize("series.title"),
                           "customizeTitle" => localize ("customize.title"),
                           "aboutTitle" => localize ("about.title"),
                           "previousAlt" => localize ("paging.previous.alternate"),
                           "nextAlt" => localize ("paging.next.alternate"),
                           "searchAlt" => localize ("search.alternate"),
                           "sortAlt" => localize ("sort.alternate"),
                           "homeAlt" => localize ("home.alternate"),
                           "cogAlt" => localize ("cog.alternate"),
                           "permalinkAlt" => localize ("permalink.alternate"),
                           "publisherName" => localize("publisher.name"),
                           "pubdateTitle" => localize("pubdate.title"),
                           "languagesTitle" => localize("language.title"),
                           "contentTitle" => localize("content.summary"),
                           "filterClearAll" => localize("filter.clearall"),
                           "sortorderAsc" => localize("search.sortorder.asc"),
                           "sortorderDesc" => localize("search.sortorder.desc"),
                           "customizeEmail" => localize("customize.email")),
                       "url" => array (
                           "detailUrl" => "index.php?page=13&id={0}&db={1}",
                           "coverUrl" => "fetch.php?id={0}&db={1}",
                           "thumbnailUrl" => "fetch.php?height=" . $config['cops_html_thumbnail_height'] . "&id={0}&db={1}"),
                       "config" => array (
                           "use_fancyapps" => $config ["cops_use_fancyapps"],
                           "max_item_per_page" => $config['cops_max_item_per_page'],
                           "kindleHack"        => "",
                           "server_side_rendering" => useServerSideRendering (),
                           "html_tag_filter" => $config['cops_html_tag_filter']));
        if ($config['cops_thumbnail_handling'] == "1") {
            $out ["c"]["url"]["thumbnailUrl"] = $out ["c"]["url"]["coverUrl"];
        } else if (!empty ($config['cops_thumbnail_handling'])) {
            $out ["c"]["url"]["thumbnailUrl"] = $config['cops_thumbnail_handling'];
        }
        if (preg_match("/./", $_SERVER['HTTP_USER_AGENT'])) {
          $out ["c"]["config"]["kindleHack"] = 'style="text-decoration: none !important;"';
        }
        return $out;
    }

    public static function getJson ($complete = false) {
        global $config;
        $page = getURLParam ("page", Base::PAGE_INDEX);
        $query = getURLParam ("query");
        $search = getURLParam ("search");
        $qid = getURLParam ("id");
        $n = getURLParam ("n", "1");
        $database = GetUrlParam (DB);

        $currentPage = Page::getPage ($page, $qid, $query, $n);
        $currentPage->InitializeContent ();

        if ($search) {
            return self::getContentArrayTypeahead ($currentPage);
        }

        $out = array ( "title" => $currentPage->title);
        $entries = array ();
        foreach ($currentPage->entryArray as $entry) {
            array_push ($entries, self::getContentArray ($entry));
        }
        if (!is_null ($currentPage->book)) {
            $out ["book"] = self::getFullBookContentArray ($currentPage->book);
        }
        $out ["databaseId"] = GetUrlParam (DB, "");
        $out ["databaseName"] = Base::getDbName ();
        if ($out ["databaseId"] == "") {
            $out ["databaseName"] = "";
        }
        $out ["fullTitle"] = $out ["title"];
        if ($out ["databaseId"] != "" && $out ["databaseName"] != $out ["fullTitle"]) {
            $out ["fullTitle"] = $out ["databaseName"] . " > " . $out ["fullTitle"];
        }
        $out ["page"] = $page;
        $out ["multipleDatabase"] = Base::isMultipleDatabaseEnabled () ? 1 : 0;
        $out ["entries"] = $entries;
        $out ["isPaginated"] = 0;
        if ($currentPage->isPaginated ()) {
            $prevLink = $currentPage->getPrevLink ();
            $nextLink = $currentPage->getNextLink ();
            $out ["isPaginated"] = 1;
            $out ["prevLink"] = "";
            if (!is_null ($prevLink)) {
                $out ["prevLink"] = $prevLink->hrefXhtml ();
            }
            $out ["nextLink"] = "";
            if (!is_null ($nextLink)) {
                $out ["nextLink"] = $nextLink->hrefXhtml ();
            }
            $out ["maxPage"] = $currentPage->getMaxPage ();
            $out ["currentPage"] = $currentPage->n;
        }
        if (!is_null (getURLParam ("complete")) || $complete) {
            $out = self::addCompleteArray ($out);
       }

        $out ["containsBook"] = 0;
        if ($currentPage->containsBook ()) {
            $out ["containsBook"] = 1;
        }

        $out["abouturl"] = "index.php" . addURLParameter ("?page=" . Base::PAGE_ABOUT, DB, $database);

        if ($page == Base::PAGE_ABOUT) {
            $temp = preg_replace ("/\<h1\>About COPS\<\/h1\>/", "<h1>About COPS " . VERSION . "</h1>", file_get_contents('about.html'));
            $out ["fullhtml"] = $temp;
        }

        $out ["homeurl"] = "index.php";
        if ($page != Base::PAGE_INDEX && !is_null ($database)) $out ["homeurl"] = $out ["homeurl"] .  "?" . addURLParameter ("", DB, $database);

        return $out;
    }
}