/* global __ */

if (typeof KOHA == "undefined" || !KOHA) {
    var KOHA = {};
}

/**
 * A namespace for local cover related functions.
 */
KOHA.LocalCover = {


    /**
     * Search all:
     *    <div title="biblionumber" id="isbn" class="openlibrary-thumbnail"></div>
     * or
     *    <div title="biblionumber" id="isbn" class="openlibrary-thumbnail-preview"></div>
     * and run a search with all collected isbns to Open Library Book Search.
     * The result is asynchronously returned by OpenLibrary and catched by
     * olCallBack().
     */
    GetCoverFromBibnumber: function(uselink) {
        var mydiv = $("#local-thumbnail-preview");
        var biblionumber = mydiv.data("biblionumber");
        var img = document.createElement("img");
        img.src = "/cgi-bin/koha/catalogue/image.pl?thumbnail=1&biblionumber=" + biblionumber;
        img.onload = function() {
            // image dimensions can't be known until image has loaded
            if ( (img.complete != null) && (!img.complete) ) {
                mydiv.remove();
            }
        };
        if (uselink) {
            var a = $("<a />").attr('href', '/cgi-bin/koha/catalogue/imageviewer.pl?biblionumber=' + $(mydiv).attr("class"));
            $(a).append(img);
            mydiv.append(a);
        } else {
            mydiv.append(img);
        }
    },
};