text: /* Copyright 2013-2021 MultiMC Contributors
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include "TechnicPage.h"
  #include "ui_TechnicPage.h"
  
  #include "MultiMC.h"
  #include "dialogs/NewInstanceDialog.h"
  #include "TechnicModel.h"
  #include <QKeyEvent>
  #include "modplatform/technic/SingleZipPackInstallTask.h"
  #include "modplatform/technic/SolderPackInstallTask.h"
  #include "Json.h"
  
  TechnicPage::TechnicPage(NewInstanceDialog* dialog, QWidget *parent)
      : QWidget(parent), ui(new Ui::TechnicPage), dialog(dialog)
  {
      ui->setupUi(this);
      connect(ui->searchButton, &QPushButton::clicked, this, &TechnicPage::triggerSearch);
      ui->searchEdit->installEventFilter(this);
      model = new Technic::ListModel(this);
      ui->packView->setModel(model);
      connect(ui->packView->selectionModel(), &QItemSelectionModel::currentChanged, this, &TechnicPage::onSelectionChanged);
  }
  
  bool TechnicPage::eventFilter(QObject* watched, QEvent* event)
  {
      if (watched == ui->searchEdit && event->type() == QEvent::KeyPress) {
          QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
          if (keyEvent->key() == Qt::Key_Return) {
              triggerSearch();
              keyEvent->accept();
              return true;
          }
      }
      return QWidget::eventFilter(watched, event);
  }
  
  TechnicPage::~TechnicPage()
  {
      delete ui;
  }
  
  bool TechnicPage::shouldDisplay() const
  {
      return true;
  }
  
  void TechnicPage::openedImpl()
  {
      dialog->setSuggestedPack();
  }
  
  void TechnicPage::triggerSearch() {
      model->searchWithTerm(ui->searchEdit->text());
  }
  
  void TechnicPage::onSelectionChanged(QModelIndex first, QModelIndex second)
  {
      if(!first.isValid())
      {
          if(isOpened)
          {
              dialog->setSuggestedPack();
          }
          //ui->frame->clear();
          return;
      }
  
      current = model->data(first, Qt::UserRole).value<Technic::Modpack>();
      suggestCurrent();
  }
  
  void TechnicPage::suggestCurrent()
  {
      if (!isOpened)
      {
          return;
      }
      if (current.broken)
      {
          dialog->setSuggestedPack();
          return;
      }
  
      QString editedLogoName;
      editedLogoName = "technic_" + current.logoName.section(".", 0, 0);
      model->getLogo(current.logoName, current.logoUrl, [this, editedLogoName](QString logo)
      {
          dialog->setSuggestedIconFromFile(logo, editedLogoName);
      });
  
      if (current.metadataLoaded)
      {
          metadataLoaded();
      }
      else
      {
          NetJob *netJob = new NetJob(QString("Technic::PackMeta(%1)").arg(current.name));
          std::shared_ptr<QByteArray> response = std::make_shared<QByteArray>();
          QString slug = current.slug;
          netJob->addNetAction(Net::Download::makeByteArray(QString("https://api.technicpack.net/modpack/%1?build=multimc").arg(slug), response.get()));
          QObject::connect(netJob, &NetJob::succeeded, this, [this, response, slug]
          {
              if (current.slug != slug)
              {
                  return;
              }
              QJsonParseError parse_error;
              QJsonDocument doc = QJsonDocument::fromJson(*response, &parse_error);
              QJsonObject obj = doc.object();
              if(parse_error.error != QJsonParseError::NoError)
              {
                  qWarning() << "Error while parsing JSON response from Technic at " << parse_error.offset << " reason: " << parse_error.errorString();
                  qWarning() << *response;
                  return;
              }
              if (!obj.contains("url"))
              {
                  qWarning() << "Json doesn't contain an url key";
                  return;
              }
              QJsonValueRef url = obj["url"];
              if (url.isString())
              {
                  current.url = url.toString();
              }
              else
              {
                  if (!obj.contains("solder"))
                  {
                      qWarning() << "Json doesn't contain a valid url or solder key";
                      return;
                  }
                  QJsonValueRef solderUrl = obj["solder"];
                  if (solderUrl.isString())
                  {
                      current.url = solderUrl.toString();
                      current.isSolder = true;
                  }
                  else
                  {
                      qWarning() << "Json doesn't contain a valid url or solder key";
                      return;
                  }
              }
  
              current.minecraftVersion = Json::ensureString(obj, "minecraft", QString(), "__placeholder__");
              current.websiteUrl = Json::ensureString(obj, "platformUrl", QString(), "__placeholder__");
              current.author = Json::ensureString(obj, "user", QString(), "__placeholder__");
              current.description = Json::ensureString(obj, "description", QString(), "__placeholder__");
              current.metadataLoaded = true;
              metadataLoaded();
          });
          netJob->start();
      }
  }
  
  // expects current.metadataLoaded to be true
  void TechnicPage::metadataLoaded()
  {
      QString text = "";
      QString name = current.name;
  
      if (current.websiteUrl.isEmpty())
          // This allows injecting HTML here.
          text = name;
      else
          // URL not properly escaped for inclusion in HTML. The name allows for injecting HTML.
          text = "<a href=\"" + current.websiteUrl + "\">" + name + "</a>";
      if (!current.author.isEmpty()) {
          // This allows injecting HTML here
          text += tr(" by ") + current.author;
      }
  
      ui->frame->setModText(text);
      ui->frame->setModDescription(current.description);
      if (!current.isSolder)
      {
          dialog->setSuggestedPack(current.name, new Technic::SingleZipPackInstallTask(current.url, current.minecraftVersion));
      }
      else
      {
          while (current.url.endsWith('/')) current.url.chop(1);
          dialog->setSuggestedPack(current.name, new Technic::SolderPackInstallTask(current.url + "/modpack/" + current.slug, current.minecraftVersion));
      }
  }
  