/*
 * Copyright 2014, Martin Zimmermann <info@posativ.org>. All rights reserved.
 * Distributed under the MIT license
 */

require(["app/lib/ready", "app/config", "app/i18n", "app/api", "app/isso", "app/count", "app/dom", "app/text/css", "app/text/svg", "app/jade"], function(domready, config, i18n, api, isso, count, $, css, svg, jade) {

    "use strict";

    jade.set("conf", config);
    jade.set("i18n", i18n.translate);
    jade.set("pluralize", i18n.pluralize);
    jade.set("svg", svg);

    var isso_thread;
    var heading;

    function init() {
        isso_thread = $('#isso-thread');
        heading = $.new("h4");

        if (config["css"] && $("style#isso-style") === null) {
            var style = $.new("style");
            style.id = "isso-style";
            style.type = "text/css";
            style.textContent = css.inline;
            $("head").append(style);
        }

        count();

        if (isso_thread === null) {
            return console.log("abort, #isso-thread is missing");
        }

        if (config["feed"]) {
            var feedLink = $.new('a', i18n.translate('atom-feed'));
            var feedLinkWrapper = $.new('span.isso-feedlink');
            feedLink.href = api.feed(isso_thread.getAttribute("data-isso-id"));
            feedLinkWrapper.appendChild(feedLink);
            isso_thread.append(feedLinkWrapper);
        }
        isso_thread.append(heading);
        isso_thread.append(new isso.Postbox(null));
        isso_thread.append('<div id="isso-root"></div>');
    }

    function fetchComments() {

        if ($('#isso-root').length == 0) {
            return;
        }

        $('#isso-root').textContent = '';
        api.fetch(isso_thread.getAttribute("data-isso-id") || location.pathname,
            config["max-comments-top"],
            config["max-comments-nested"]).then(
            function (rv) {
                if (rv.total_replies === 0) {
                    heading.textContent = i18n.translate("no-comments");
                    return;
                }

                var lastcreated = 0;
                var count = rv.total_replies;
                rv.replies.forEach(function(comment) {
                    isso.insert(comment, false);
                    if (comment.created > lastcreated) {
                        lastcreated = comment.created;
                    }
                    count = count + comment.total_replies;
                });
                heading.textContent = i18n.pluralize("num-comments", count);

                if (rv.hidden_replies > 0) {
                    isso.insert_loader(rv, lastcreated);
                }

                if (window.location.hash.length > 0 &&
                    window.location.hash.match("^#isso-[0-9]+$")) {
                    $(window.location.hash).scrollIntoView();
                }
            },
            function(err) {
                console.log(err);
            }
        );
    }

    domready(function() {
        init();
        fetchComments();
    });

    window.Isso = {
        init: init,
        fetchComments: fetchComments
    };

});