/*
 * Strawberry Music Player
 * This file was part of Clementine.
 * Copyright 2012, David Sansome <me@davidsansome.com>
 * Copyright 2014, John Maguire <john.maguire@gmail.com>
 * Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
 * Copyright 2019-2021, Jonas Kvinge <jonas@jkvinge.net>
 *
 * Strawberry is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Strawberry is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <QObject>
#include <QString>
#include <QUrl>
#include <QIcon>
#include <QMessageBox>

#include "podcastdiscoverymodel.h"
#include "podcasturlloader.h"

#include "fixedopmlpage.h"

FixedOpmlPage::FixedOpmlPage(const QUrl &opml_url, const QString &title, const QIcon &icon, Application *app, QWidget *parent)
    : AddPodcastPage(app, parent),
      loader_(new PodcastUrlLoader(this)),
      opml_url_(opml_url),
      done_initial_load_(false) {

  setWindowTitle(title);
  setWindowIcon(icon);

}

void FixedOpmlPage::Show() {

  if (!done_initial_load_) {
    emit Busy(true);
    done_initial_load_ = true;

    PodcastUrlLoaderReply *reply = loader_->Load(opml_url_);
    QObject::connect(reply, &PodcastUrlLoaderReply::Finished, this, [this, reply]() { LoadFinished(reply); });
  }

}

void FixedOpmlPage::LoadFinished(PodcastUrlLoaderReply *reply) {

  reply->deleteLater();
  emit Busy(false);

  if (!reply->is_success()) {
    QMessageBox::warning(this, tr("Failed to load podcast"), reply->error_text(), QMessageBox::Close);
    return;
  }

  switch (reply->result_type()) {
    case PodcastUrlLoaderReply::Type_Podcast:{
      const PodcastList podcasts = reply->podcast_results();
      for (const Podcast &podcast : podcasts) {
        model()->appendRow(model()->CreatePodcastItem(podcast));
      }
      break;
    }

    case PodcastUrlLoaderReply::Type_Opml:
      model()->CreateOpmlContainerItems(reply->opml_results(), model()->invisibleRootItem());
      break;
  }

}