/*
 * MIT License
 * Copyright (c) 2008 Ishan Arora <ishan@qbittorrent.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

"use strict";

if (window.qBittorrent === undefined)
    window.qBittorrent = {};

window.qBittorrent.Download = (function() {
    const exports = function() {
        return {
            changeCategorySelect: changeCategorySelect,
            changeTMM: changeTMM
        };
    };

    let categories = {};
    let defaultSavePath = "";

    const getCategories = function() {
        new Request.JSON({
            url: "api/v2/torrents/categories",
            method: "get",
            noCache: true,
            onSuccess: function(data) {
                if (data) {
                    categories = data;
                    for (const i in data) {
                        if (!Object.hasOwn(data, i))
                            continue;

                        const category = data[i];
                        const option = new Element("option");
                        option.set("value", category.name);
                        option.set("html", category.name);
                        $("categorySelect").appendChild(option);
                    }
                }
            }
        }).send();
    };

    const getPreferences = function() {
        const pref = window.parent.qBittorrent.Cache.preferences.get();

        defaultSavePath = pref.save_path;
        $("savepath").setProperty("value", defaultSavePath);
        $("startTorrent").checked = !pref.add_stopped_enabled;
        $("addToTopOfQueue").checked = pref.add_to_top_of_queue;

        if (pref.auto_tmm_enabled) {
            $("autoTMM").selectedIndex = 1;
            $("savepath").disabled = true;
        }
        else {
            $("autoTMM").selectedIndex = 0;
        }

        if (pref.torrent_stop_condition === "MetadataReceived")
            $("stopCondition").selectedIndex = 1;
        else if (pref.torrent_stop_condition === "FilesChecked")
            $("stopCondition").selectedIndex = 2;
        else
            $("stopCondition").selectedIndex = 0;

        if (pref.torrent_content_layout === "Subfolder")
            $("contentLayout").selectedIndex = 1;
        else if (pref.torrent_content_layout === "NoSubfolder")
            $("contentLayout").selectedIndex = 2;
        else
            $("contentLayout").selectedIndex = 0;
    };

    const changeCategorySelect = function(item) {
        if (item.value === "\\other") {
            item.nextElementSibling.hidden = false;
            item.nextElementSibling.value = "";
            item.nextElementSibling.select();

            if ($("autoTMM").selectedIndex === 1)
                $("savepath").value = defaultSavePath;
        }
        else {
            item.nextElementSibling.hidden = true;
            const text = item.options[item.selectedIndex].textContent;
            item.nextElementSibling.value = text;

            if ($("autoTMM").selectedIndex === 1) {
                const categoryName = item.value;
                const category = categories[categoryName];
                let savePath = defaultSavePath;
                if (category !== undefined)
                    savePath = (category["savePath"] !== "") ? category["savePath"] : `${defaultSavePath}/${categoryName}`;
                $("savepath").value = savePath;
            }
        }
    };

    const changeTMM = function(item) {
        if (item.selectedIndex === 1) {
            $("savepath").disabled = true;

            const categorySelect = $("categorySelect");
            const categoryName = categorySelect.options[categorySelect.selectedIndex].value;
            const category = categories[categoryName];
            $("savepath").value = (category === undefined) ? "" : category["savePath"];
        }
        else {
            $("savepath").disabled = false;
            $("savepath").value = defaultSavePath;
        }
    };

    $(window).addEventListener("load", () => {
        getPreferences();
        getCategories();
    });

    return exports();
})();

Object.freeze(window.qBittorrent.Download);
