// For license of this file, see <project-root-folder>/LICENSE.md.

#include "network-web/adblock/adblockdialog.h"

#include "definitions/definitions.h"
#include "exceptions/applicationexception.h"
#include "gui/guiutilities.h"
#include "gui/messagebox.h"
#include "miscellaneous/application.h"
#include "miscellaneous/iconfactory.h"
#include "miscellaneous/settings.h"
#include "network-web/adblock/adblockmanager.h"
#include "network-web/webfactory.h"

#include <QMenu>
#include <QMessageBox>
#include <QTimer>

AdBlockDialog::AdBlockDialog(QWidget* parent) : QDialog(parent), m_manager(qApp->web()->adBlock()), m_loaded(false) {
  m_ui.setupUi(this);
  m_ui.m_cbEnable->setChecked(m_manager->isEnabled());

  GuiUtilities::applyDialogProperties(*this,
                                      qApp->icons()->miscIcon(QSL(ADBLOCK_ICON_ACTIVE)),
                                      tr("AdBlock configuration"));

  connect(m_ui.m_btnHelp, &QPushButton::clicked, this, [=]() {
    qApp->web()->openUrlInExternalBrowser(QSL(ADBLOCK_HOWTO));
  });
  connect(m_ui.m_cbEnable, &QCheckBox::clicked, this, &AdBlockDialog::enableAdBlock);
  connect(m_manager, &AdBlockManager::enabledChanged, this, &AdBlockDialog::onAdBlockEnabledChanged);
  connect(m_manager, &AdBlockManager::processTerminated, this, &AdBlockDialog::onAdBlockProcessTerminated);

  m_ui.m_lblTestResult->label()->setWordWrap(true);
  m_ui.m_btnHelp->setIcon(qApp->icons()->fromTheme(QSL("help-about")));
  m_ui.m_lblTestResult->setStatus(WidgetWithStatus::StatusType::Information,
                                  tr("No additional info."),
                                  tr("No additional info."));

  loadDialog();
  m_ui.m_buttonBox->setFocus();
}

void AdBlockDialog::saveOnClose() {
  m_manager->setFilterLists(m_ui.m_txtPredefined->toPlainText().split(QSL("\n")));
  m_manager->setCustomFilters(m_ui.m_txtCustom->toPlainText().split(QSL("\n")));

  try {
    auto enabl = m_manager->isEnabled();

    m_manager->setEnabled(false);

    if (enabl) {
      m_manager->setEnabled(enabl);
    }
  }
  catch (const ApplicationException& ex) {
    qCriticalNN << LOGSEC_ADBLOCK << "Failed to enable AdBlock, error:" << QUOTE_W_SPACE_DOT(ex.message());

    MsgBox::show(this,
                 QMessageBox::Icon::Critical,
                 tr("Cannot enable AdBlock"),
                 tr("There is some error in AdBlock component and it cannot be enabled. "
                    "Check error message below (or application debug log) for more information."),
                 {},
                 ex.message());
  }
}

void AdBlockDialog::enableAdBlock(bool enable) {
  qApp->settings()->setValue(GROUP(AdBlock), AdBlock::AdBlockEnabled, enable);

  m_manager->setFilterLists(m_ui.m_txtPredefined->toPlainText().split(QSL("\n")));
  m_manager->setCustomFilters(m_ui.m_txtCustom->toPlainText().split(QSL("\n")));

  try {
    m_manager->setEnabled(enable);
  }
  catch (const ApplicationException& ex) {
    qCriticalNN << LOGSEC_ADBLOCK << "Test of configuration failed:" << QUOTE_W_SPACE_DOT(ex.message());

    m_ui.m_lblTestResult->setStatus(WidgetWithStatus::StatusType::Error,
                                    tr("There is error, check application log for more details and "
                                       "head to online documentation. Also make sure that Node.js is installed."
                                       "\n\nError: %1")
                                      .arg(ex.message()),
                                    tr("ERROR!"));
  }
}

void AdBlockDialog::onAdBlockEnabledChanged(bool enabled, const QString& message) {
  m_ui.m_cbEnable->setChecked(enabled);

  if (enabled) {
    m_ui.m_lblTestResult->setStatus(WidgetWithStatus::StatusType::Ok,
                                    tr("It seems your AdBlock runs fine, but wait few seconds to be sure."),
                                    tr("OK!"));
  }
  else if (!message.isEmpty()) {
    m_ui.m_lblTestResult->setStatus(WidgetWithStatus::StatusType::Warning, message, message);
  }
  else {
    m_ui.m_lblTestResult->setStatus(WidgetWithStatus::StatusType::Information,
                                    tr("No additional info."),
                                    tr("No additional info."));
  }
}

void AdBlockDialog::onAdBlockProcessTerminated() {
  m_ui.m_cbEnable->setChecked(false);
  m_ui.m_lblTestResult->setStatus(WidgetWithStatus::StatusType::Error,
                                  tr("There is error, check application log for more details and "
                                     "head to online documentation."),
                                  tr("ERROR!"));
}

void AdBlockDialog::loadDialog() {
  m_ui.m_txtCustom->setPlainText(m_manager->customFilters().join(QSL("\n")));
  m_ui.m_txtPredefined->setPlainText(m_manager->filterLists().join(QSL("\n")));
}

void AdBlockDialog::hideEvent(QHideEvent* event) {
  QDialog::hideEvent(event);

  saveOnClose();
}