/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.

For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "info/info_section_widget.h"

#include "window/window_adaptive.h"
#include "window/window_connecting_widget.h"
#include "window/window_session_controller.h"
#include "main/main_session.h"
#include "info/info_content_widget.h"
#include "info/info_wrap_widget.h"
#include "info/info_layer_widget.h"
#include "info/info_memento.h"
#include "info/info_controller.h"
#include "styles/style_layers.h"

namespace Info {

SectionWidget::SectionWidget(
	QWidget *parent,
	not_null<Window::SessionController*> window,
	Wrap wrap,
	not_null<Memento*> memento)
: Window::SectionWidget(parent, window)
, _content(this, window, wrap, memento) {
	init();
}

SectionWidget::SectionWidget(
	QWidget *parent,
	not_null<Window::SessionController*> window,
	Wrap wrap,
	not_null<MoveMemento*> memento)
: Window::SectionWidget(parent, window)
, _content(memento->takeContent(this, wrap)) {
	init();
}

void SectionWidget::init() {
	Expects(_connecting == nullptr);

	rpl::combine(
		sizeValue(),
		_content->desiredHeightValue()
	) | rpl::filter([=] {
		return (_content != nullptr);
	}) | rpl::start_with_next([=](QSize size, int) {
		const auto expanding = false;
		const auto additionalScroll = st::boxRadius;
		const auto full = !_content->scrollBottomSkip();
		const auto height = size.height() - (full ? 0 : st::boxRadius);
		const auto wrapGeometry = QRect{ 0, 0, size.width(), height };
		_content->updateGeometry(wrapGeometry, expanding, additionalScroll);
	}, lifetime());

	_connecting = std::make_unique<Window::ConnectionState>(
		_content.data(),
		&controller()->session().account(),
		controller()->adaptive().oneColumnValue());

	_content->contentChanged(
	) | rpl::start_with_next([=] {
		_connecting->raise();
	}, _connecting->lifetime());
}

Dialogs::RowDescriptor SectionWidget::activeChat() const {
	return _content->activeChat();
}

bool SectionWidget::hasTopBarShadow() const {
	return _content->hasTopBarShadow();
}

QPixmap SectionWidget::grabForShowAnimation(
		const Window::SectionSlideParams &params) {
	return _content->grabForShowAnimation(params);
}

void SectionWidget::doSetInnerFocus() {
	_content->setInnerFocus();
}

void SectionWidget::showFinishedHook() {
	_topBarSurrogate.destroy();
	_content->showFast();
}

void SectionWidget::showAnimatedHook(
		const Window::SectionSlideParams &params) {
	_topBarSurrogate = _content->createTopBarSurrogate(this);
}

void SectionWidget::paintEvent(QPaintEvent *e) {
	Window::SectionWidget::paintEvent(e);
	if (!animatingShow()) {
		QPainter(this).fillRect(e->rect(), st::windowBg);
	}
}

bool SectionWidget::showInternal(
		not_null<Window::SectionMemento*> memento,
		const Window::SectionShow &params) {
	return _content->showInternal(memento, params);
}

std::shared_ptr<Window::SectionMemento> SectionWidget::createMemento() {
	return _content->createMemento();
}

object_ptr<Ui::LayerWidget> SectionWidget::moveContentToLayer(
		QRect bodyGeometry) {
	if (_content->controller()->wrap() != Wrap::Narrow
		|| width() < LayerWidget::MinimalSupportedWidth()) {
		return nullptr;
	}
	return MoveMemento(
		std::move(_content)).createLayer(
			controller(),
			bodyGeometry);
}

rpl::producer<> SectionWidget::removeRequests() const {
	return _content->removeRequests();
}

bool SectionWidget::floatPlayerHandleWheelEvent(QEvent *e) {
	return _content->floatPlayerHandleWheelEvent(e);
}

QRect SectionWidget::floatPlayerAvailableRect() {
	return _content->floatPlayerAvailableRect();
}

} // namespace Info
