/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: https://neueland.iserlohn-fortress.net/smolbote.hg
 *
 * SPDX-License-Identifier: GPL-3.0
 */

#include "settingsdialog.h"
#include "../../src/configuration.h"
#include "ui_settingsdialog.h"
#include <QFormLayout>
#include <QGroupBox>
#include <QLineEdit>
#include <QScrollArea>
#include <QToolButton>

inline QHBoxLayout *createEntry(Configuration *config, const std::string &path, QWidget *widget);

SettingsDialog::SettingsDialog(std::shared_ptr<Configuration> &settings, QWidget *parent)
    : QDialog(parent)
    , ui(new Ui::SettingsDialog)
{
    ui->setupUi(this);

    for(const std::string &group : settings->childrenGroups("")) {
        QScrollArea *area = new QScrollArea(this);
        area->setWidgetResizable(true);
        area->setWidget(widgetForGroup(settings, group, this));
        ui->tabWidget->addTab(area, QString::fromStdString(group));
    }
}

SettingsDialog::~SettingsDialog()
{
    delete ui;
}

QWidget *widgetForGroup(std::shared_ptr<Configuration> &settings, const std::string &group, QWidget *parent)
{
    QWidget *widget = new QWidget(parent);
    QVBoxLayout *layout = new QVBoxLayout();
    widget->setLayout(layout);

    // add entry for every key
    QFormLayout *form = new QFormLayout();
    for(const std::string &key : settings->childrenSettings(group.c_str())) {
        QHBoxLayout *hBox = createEntry(settings.get(), group + '.' + key, widget);
        form->addRow(parent->tr(key.c_str()), hBox);
    }
    layout->addLayout(form);

    // TODO: iterate through groups
    for(const std::string &childGroup : settings->childrenGroups(group.c_str())) {
        QGroupBox *groupBox = new QGroupBox(QString::fromStdString(childGroup), widget);
        layout->addWidget(groupBox);
        QFormLayout *boxForm = new QFormLayout(groupBox);
        groupBox->setLayout(boxForm);

        const std::string groupPath = group + '.' + childGroup;
        for(const std::string &key : settings->childrenSettings(groupPath.c_str())) {
            QHBoxLayout *hBox = createEntry(settings.get(), groupPath + '.' + key, groupBox);
            boxForm->addRow(parent->tr(key.c_str()), hBox);
        }
    }

    return widget;
}

inline QHBoxLayout *createEntry(Configuration *config, const std::string &path, QWidget *widget)
{
    QLineEdit *lineEdit = new QLineEdit(widget);
    lineEdit->setText(QString::fromStdString(config->value<std::string>(path.c_str()).value()));

    QObject::connect(lineEdit, &QLineEdit::editingFinished, widget, [config, path, lineEdit]() {
        config->setValue<std::string>(path, lineEdit->text().toStdString());
    });

    QHBoxLayout *hBox = new QHBoxLayout();
    hBox->addWidget(lineEdit);

    return hBox;
}