"use strict";

const downloadAppBtn = document.querySelector(".download__app");
const downloadAppOther = document.querySelector(".download__app-other");
const downloadAppOtherSummary = downloadAppOther.querySelector(":scope > summary");

// Ext download button
const downloadExtBtn = document.querySelector(".download__ext");

// App download buttons
const appListWinBtn = document.querySelector(".app-list__win");
const appListMacBtn = document.querySelector(".app-list__mac");
const appListDebBtn = document.querySelector(".app-list__deb");
const appListRpmBtn = document.querySelector(".app-list__rpm");


let platform;

switch (navigator.platform) {
    case "Win32":
    case "Win64":
        platform = "win";
        downloadAppBtn.textContent = "Windows Bridge";
        appListWinBtn.hidden = true;
        break;

    case "MacIntel":
        platform = "mac";
        downloadAppBtn.textContent = "macOS Bridge";
        appListMacBtn.hidden = true;
        break;

    default:
        /**
         * Hide default download button and display other downloads
         * without details summary.
         */
        downloadAppBtn.remove();
        downloadAppOther.open = true;
        downloadAppOtherSummary.hidden = true;
}



const ENDPOINT_URL = "https://api.github.com/repos/hensm/fx_cast/releases/latest";

fetch(ENDPOINT_URL)
    .then(res => res.json())
    .then(onResponse)
    .catch(onError);

function onResponse (res) {
    for (const asset of res.assets) {
        const { browser_download_url } = asset;

        switch (asset.name.match(/.*\.(.*)$/).pop()) {
            case "xpi":
                downloadExtBtn.href = browser_download_url;
                downloadExtBtn.removeAttribute("disabled");
                downloadExtBtn.removeAttribute("title");
                break;

            case "exe":
                appListWinBtn.href = browser_download_url;
                appListWinBtn.removeAttribute("disabled");
                appListWinBtn.removeAttribute("title");
                break;
            case "pkg":
                appListMacBtn.href = browser_download_url;
                appListMacBtn.removeAttribute("disabled");
                appListMacBtn.removeAttribute("title");
                break;
            case "deb":
                appListDebBtn.href = browser_download_url;
                appListDebBtn.removeAttribute("disabled");
                appListDebBtn.removeAttribute("title");
                break;
            case "rpm":
                appListRpmBtn.href = browser_download_url;
                appListRpmBtn.removeAttribute("disabled");
                appListRpmBtn.removeAttribute("title");
                break;
        }
    }

    if (platform) {
        switch (platform) {
            case "win":
                downloadAppBtn.href = appListWinBtn.href;
                break;
            case "mac":
                downloadAppBtn.href = appListMacBtn.href;
                break;

            default: {
                return;
            }
        }

        downloadAppBtn.removeAttribute("disabled");
        downloadAppBtn.removeAttribute("title");
    }
}

function onError (err) {
    console.error("Failed to fetch download links");
}