#include "settings.h"
#include "ui_settings.h"

Settings::Settings(QWidget* parent):
    QWidget(parent),
    m_ui(new Ui::Settings()),
    modifiedSettings()
{
    m_ui->setupUi(this);

    connect(m_ui->list, &QListWidget::currentItemChanged, this, &Settings::onCurrentPageChanged);

    connect(m_ui->General, &PageGeneral::variableModified, this, &Settings::onVariableModified);
    connect(m_ui->Appearance, &PageAppearance::variableModified, this, &Settings::onVariableModified);

    connect(m_ui->applyButton, &QPushButton::clicked, this, &Settings::apply);
    connect(m_ui->okButton, &QPushButton::clicked, this, &Settings::confirm);
    connect(m_ui->cancelButton, &QPushButton::clicked, this, &Settings::close);
}

Settings::~Settings()
{
}

void Settings::onCurrentPageChanged(QListWidgetItem* current)
{
    if (current != nullptr) {
        m_ui->header->setText(current->text());

        m_ui->content->setCurrentIndex(m_ui->list->currentRow());
    }
}

void Settings::onVariableModified(const QString& key, const QVariant& value)
{
    modifiedSettings[key] = value;
}

void Settings::apply()
{
    QSettings settings;
    for (const std::pair<const QString, QVariant>& pair: modifiedSettings) {
        if (pair.first == "style") {
            Shared::Global::setStyle(pair.second.toString());
            settings.setValue(pair.first, pair.second);
        } else if (pair.first == "theme") {
            Shared::Global::setTheme(pair.second.toString());
            settings.setValue(pair.first, pair.second);
        } else if (pair.first == "downloadsPath") {
            QString path = pair.second.toString();
            if (!Shared::isSubdirectoryOfSettings(path)) {
                path = Shared::getAbsoluteWritablePath(path);
                if (path.size() > 0) {
                    settings.setValue(pair.first, path);
                    emit changeDownloadsPath(path);
                }
            }
        }

    }

    modifiedSettings.clear();
}

void Settings::confirm()
{
    apply();
    close();
}