// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#include "CollapsibleSection.h"

#include <QToolButton>
#include <QVBoxLayout>

CollapsibleSection::CollapsibleSection(const QString &title, QWidget *parent) : QWidget(parent) {
    auto *v = new QVBoxLayout(this);
    v->setContentsMargins(0, 0, 0, 0);
    v->setSpacing(0);

    header_ = new QToolButton(this);
    header_->setText(title);
    header_->setCheckable(true);
    header_->setChecked(true);
    header_->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
    header_->setArrowType(Qt::DownArrow);
    header_->setCursor(Qt::PointingHandCursor);
    header_->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    header_->setStyleSheet(
        "QToolButton { color:#1F3A5F; font-weight:bold; text-align:left;"
        " padding:3px 6px 3px 6px; border:none;"
        " border-left:3px solid #FA7268; border-bottom:1px solid #FA7268; background:transparent; }");

    content_ = new QWidget(this);

    v->addWidget(header_);
    v->addWidget(content_);

    connect(header_, &QToolButton::toggled, this, [this](bool on) {
        content_->setVisible(on);
        header_->setArrowType(on ? Qt::DownArrow : Qt::RightArrow);
    });
}

void CollapsibleSection::setContentLayout(QLayout *layout) {
    content_->setLayout(layout);
}

void CollapsibleSection::setExpanded(bool on) {
    header_->setChecked(on);
}