thorio/KGrabber

/**
 * @typedef {import("kgrabber-types/Episode")} Episode
 */

const shared = require("./shared"),
    exporters = require("../exporters"),
    util = require("../util"),
    html = require("../html"),
    actions = require("../actions"),
    statusManager = require("../statusManager"),
    preferenceManager = require("../config/preferenceManager"),
    page = require("./page"),
    { sites } = require("../config");

const status = statusManager.get(),
    preferences = preferenceManager.get();
let injected = false;

function inject() {
    $("#leftside").prepend(html.linkDisplay);
    setHandlers();
    sites.current().applyPatch("linkDisplay");
    injected = true;
    if (!$("#KG-linkdisplay").length) util.log.err(new Error("linkDisplay not injected"));
}

let load = exports.load = () => {
    show(true);
    setTitle(`Extracted Links | ${status.title}`);
    loadLinks(status.episodes);
    loadExporters(exporters.sorted(status.linkType, status.url == page.href));
    loadActions(actions.available());

    shared.applyColors();
};

/**
 * @param {Boolean} instant skip animation?
 */
let show = exports.show = (instant) => {
    if (!injected) inject();
    instant ? $("#KG-linkdisplay").show() : $("#KG-linkdisplay").slideDown();
};

let hide = exports.hide = () =>
    $("#KG-linkdisplay").slideUp();

function setTitle(text) {
    $("#KG-linkdisplay .KG-dialog-title").text(text);
}

// TODO convert to html table
// TODO add LinkType indicator see #41
/**
 * @param {Episode[]} episodes
 */
function loadLinks(episodes) {
    let html = "";
    let padLength = Math.max(2, page.episodeCount().toString().length);
    util.for(episodes, (i, /** @type {Episode} */ obj) => {
        let num = obj.episodeNumber.toString().padStart(padLength, "0");
        let number = `<div class="KG-linkdisplay-episodenumber">E${num}:</div>`;
        let link = `<a href="${obj.functionalLink}" target="_blank">${obj.displayLink}</a>`;
        if (obj.error || obj.displayOverride) {
            link = obj.displayLink;
        }
        html += `<div class="KG-linkdisplay-row">${number} ${link}</div>`;
    });
    $("#KG-linkdisplay-text").html(`<div class="KG-linkdisplay-table">${html}</div>`);
}

function loadActions(actions) {
    $("#KG-action-container .KG-button").remove(); //clear old buttons
    for (let i in actions) {
        if (actions[i].automatic && !status.hasReset && !preferences.compatibility.disable_automatic_actions) {
            util.defer(() => { //schedule automatic actions
                executeAction(actions[i]);
            });
        } else {
            $(`<input type="button" class="KG-button" value="${actions[i].name}">`)
                .click(() => {
                    executeAction(actions[i]);
                })
                .appendTo("#KG-action-container");
        }
    }
}

function loadExporters(arr) {
    let $exporters = $("#KG-linkdisplay-export-dropdown");
    $exporters.empty() //clear old exporters
        .off("change")
        .change((e) => {
            runExporter(arr[e.target.value].exporter);
            $(e.target).val(""); //reset display to label
        })
        .append($("<option>") //add label
            .attr({
                value: "",
                hidden: true,
            })
            .text("Export as")
        );

    for (let i in arr) { //add each exporter
        $("<option>")
            .text(arr[i].exporter.name)
            .attr({
                value: i,
                disabled: !arr[i].available,
            })
            .appendTo($exporters);
    }
}

function setHandlers() {
    $("#KG-linkdisplay .KG-dialog-close").click(() => {
        hide();
        statusManager.clear();
    });
}

async function executeAction(action) {
    showSpinner();
    await actions.execute(action, setSpinnerText);
    statusManager.save();
    load();
}

function runExporter(exporter) {
    let data = exporter.export(status);
    setExportText(data);
    setDownloadFile(data, status.title, exporter.extension);
    showExports();
}

let showSpinner = exports.showSpinner = () =>
    $("#KG-linkdisplay-text").html(`<div class="loader">Loading...</div><div id="KG-loader-text"><div>`);

let setSpinnerText = exports.setSpinnerText = (str) =>
    $("#KG-loader-text").text(str);

let setExportText = (text) =>
    $("#KG-linkdisplay-export-text").text(text);

let showExports = () =>
    $("#KG-linkdisplay-export").show();

function setDownloadFile(data, filename, extension) {
    $("#KG-linkdisplay-export-download").attr({
        href: `data:text/plain;charset=utf-8,${encodeURIComponent(data)}`,
        download: `${filename}.${extension}`,
    });
}