#include "StructuralRuleView.h"
#include <QGridLayout>
#include <QLabel>
#include <QComboBox>
#include <QPushButton>
#include <QSplitter>
#include <QGroupBox>
#include <QTabWidget>
#include "TranslateBasic.h"

StructuralRuleView::StructuralRuleView(QWidget* p /*= nullptr*/)
	:QWidget(p),
	_sequence_view(new SequenceRulesView(this)),
	_configs_stack(new QStackedWidget(this))
{
	auto layout = new QVBoxLayout(this);
	auto split = new QSplitter(Qt::Horizontal, this);
	layout->addWidget(split);

	split->addWidget(_sequence_view);
	split->addWidget(_configs_stack);

	_configs_stack->addWidget(new EmptyConfiguration(this));
	auto int_config = new IntegerConfiguration(this);
	_configs_stack->addWidget(int_config);


	connect(int_config, &IntegerConfiguration::ruleHasBeenChanged,
		_sequence_view, &SequenceRulesView::currentRuleRefresh);

	connect(_sequence_view, &SequenceRulesView::currentRuleChanged,
		[=](std::shared_ptr<ExtractUnit> u, const QModelIndex& i) {
			if (u->name() == extract::BytesAsInteger().name()) {
				_configs_stack->setCurrentIndex(1);
				int_config->setCurrent(i, u);
			}
			else {
				_configs_stack->setCurrentIndex(0);
			}
		});
}

EmptyConfiguration::EmptyConfiguration(QWidget* p/*=nullptr*/)
{
	auto layout = new QVBoxLayout(this);
	auto label = new QLabel(u8"当前规则无需配置", this);
	label->setAlignment(Qt::AlignCenter);
	layout->addWidget(label);
}

IntegerConfiguration::IntegerConfiguration(QWidget* p)
	:_unsigned_mark(new QCheckBox(this))
{
	auto layout = new QGridLayout(this);
	layout->addWidget(new QLabel(u8"无符号？："), 0, 0);
	layout->addWidget(_unsigned_mark, 0, 1, 1, 2);
	layout->setRowStretch(2, 1);

	connect(_unsigned_mark, &QCheckBox::stateChanged, [=](){
		auto checkmark = _unsigned_mark->isChecked();
		_current_extractor->setUnsignedMark(checkmark);
		emit this->ruleHasBeenChanged(_target_modelindex);
	});
}

void IntegerConfiguration::setCurrent(const QModelIndex& idx, std::shared_ptr<ExtractUnit> u)
{
	this->_target_modelindex = idx;
	_current_extractor = std::dynamic_pointer_cast<extract::BytesAsInteger>(u);

	this->_unsigned_mark->setChecked(_current_extractor->unsignedMark());
}