var base_reader = undefined

function subscribe_link(reader, feed_url){
  if(reader == "ttrss"){
    return `${base_reader}/public.php?op=subscribe&feed_url=${encodeURIComponent(feed_url)}`;
  } else {
    return `${base_reader}/bookmarklet?uri=${encodeURIComponent(feed_url)}`;
  }
}

window.onload = async function () {
    let settings = await browser.storage.sync.get(["rb", "reader", "instance"]);
    base_reader = settings.instance;
    let base_rb = settings.rb;
    let feeds = document.getElementById('feeds');
    feeds.innerText = "Loading..."
    browser.tabs.query({ active: true, currentWindow: true }, function (tabs) {
        browser.tabs.sendMessage(tabs[0].id, {}).then(
            function (feed_urls) {
                feeds.innerText = ""
                if(!base_rb) {
                    let newSettingsLink = document.createElement("a")
                    newSettingsLink["href"] = "/options.html"
                    newSettingsLink.innerText = "RSS-bridge instance not set! Click here to open options.";
                    let newDiv = document.createElement('div');
                    newDiv.append(newSettingsLink);
                    feeds.appendChild(newDiv);

                    let newP = document.createElement('p')
                    newP.innerText = `Found ${feed_urls.length} feeds`
                    feeds.append(newP)
                    return;
                }

                feed_urls.forEach(item => {
                    let newLink = document.createElement('a');
                    newLink["href"] = item.url
                    newLink.innerText = item.type;


                    let newDiv = document.createElement('div');
                    newDiv.append(newLink)

                    if(base_reader){
                        let subLink = document.createElement('a');
                        subLink["href"] = subscribe_link(settings.reader, item.url)
                        subLink.innerText = "subscribe";
                        newDiv.append(subLink)
                    }

                    feeds.append(newDiv)
                })
                if(feed_urls.length == 0) {
                    let newP = document.createElement('p')
                    newP.innerText = "No feeds found"
                    feeds.append(newP)
                }
            });
    });
}