#include "ui/Menu/SimuRunMenu.h"
#include "ui/Layout/AddParamSetting.h"

#include <QHBoxLayout>
#include <QLabel>
#include <QGroupBox>

#include "workspace/WorkSpaceManager.h"
#include "workspace/WorkSpace.h"
#include "workspace/CommandManager.h"

SimuRunMenu::SimuRunMenu(QWidget *parent)
    : QWidget(parent)
{
	m_pParam = NULL;

	QHBoxLayout* layout = new QHBoxLayout(this);
	layout->setContentsMargins(9, 0, 0, 0);
	layout->setSpacing(6);
	setLayout(layout);

    // Refresh when workspace changes
    connect(&WorkSpaceManager::Get(), &WorkSpaceManager::WorkSpaceChanged,
            this, &SimuRunMenu::OnWorkspaceChanged);

    // Initial population
    RefreshButtons();
}

SimuRunMenu::~SimuRunMenu() {
}

void SimuRunMenu::OnWorkspaceChanged(WorkSpace* ws) {
    Q_UNUSED(ws);
    RefreshButtons();
}

void SimuRunMenu::RefreshButtons() {
    // Clear existing buttons
	ClearAllBtn();

	CreateMatlabParam();
	CreateLine();

    auto* ws = WorkSpaceManager::Get().GetCurrent();
    if (!ws) 
	{
        // Show hint when no workspace
        if (auto* layout = qobject_cast<QHBoxLayout*>(this->layout())) {
            auto* hint = new QLabel(tr("no workspace"), this);
            layout->addWidget(hint);
        }

		CreateSpacer();

        return;
    }

    CommandManager mgr;
    const auto items = mgr.ListCommands(ws);
    if (items.empty()) 
	{
        if (auto* layout = qobject_cast<QHBoxLayout*>(this->layout())) {
            auto* hint = new QLabel(tr("no commands"), this);
            layout->addWidget(hint);
        }

		CreateSpacer();

        return;
    }
	
    // Render all commands in a single group without trigger distinction
    CreateGroup(tr("Commands"), items);

	CreateSpacer();
}

void SimuRunMenu::CreateGroup(const QString& title,
                     const std::vector<Command>& items) {
    auto* root = qobject_cast<QHBoxLayout*>(this->layout());
    if (!root) return;

	QGroupBox * groupBox = new QGroupBox;
	QHBoxLayout * hGroupLayout = new QHBoxLayout;
	hGroupLayout->setContentsMargins(10, 0, 10, 0);
	groupBox->setTitle(title);
	groupBox->setAlignment(Qt::AlignHCenter);

	for (const auto& item : items) {
		auto* btn = new QToolButton(this);
		btn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
		btn->setText(item.name.isEmpty() ? tr("unnamed") : item.name);
		btn->setIcon(QIcon(":/res/default/Command.png"));
		QString tip = item.descript;
		if (!item.program.isEmpty()) {
			tip += QStringLiteral("\nprog: ") + item.program;
		}
		if (!item.path.isEmpty()) {
			tip += QStringLiteral("\npath: ") + item.path;
		}
		btn->setToolTip(tip);
		hGroupLayout->addWidget(btn);

		connect(btn, &QToolButton::clicked, this, [name = item.name]() {
			auto* wsCur = WorkSpaceManager::Get().GetCurrent();
			if (!wsCur) return;
			CommandManager execMgr;
			execMgr.ExecuteByName(wsCur, name);
		});
	}

	groupBox->setLayout(hGroupLayout);
	root->addWidget(groupBox);
}

void SimuRunMenu::CreateMatlabParam()
{
	QHBoxLayout* layout = qobject_cast<QHBoxLayout*>(this->layout());
	if (!layout) 
		return;

	QToolButton *pBtn = new QToolButton();
	pBtn->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
	pBtn->setText(tr("MatlabParam"));
	pBtn->setIcon(QIcon(":/res/default/menu_setting_restore.png"));
	pBtn->setToolTip(tr("MatlabParam"));

	connect(pBtn, SIGNAL(clicked()), this, SLOT(slotHandleMatlabParam()));

	layout->addWidget(pBtn);
}

void SimuRunMenu::CreateLine()
{
	QHBoxLayout* layout = qobject_cast<QHBoxLayout*>(this->layout());
	if (!layout)
		return;

	QFrame *line = new QFrame(this);
	line->setObjectName(QString::fromUtf8("line"));
	line->setFrameShadow(QFrame::Plain);
	line->setFrameShape(QFrame::VLine);

	layout->addWidget(line);
}

void SimuRunMenu::CreateSpacer()
{
	QHBoxLayout* layout = qobject_cast<QHBoxLayout*>(this->layout());
	if (!layout)
		return;

	QSpacerItem *horizontalSpacer = new QSpacerItem(441, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
	layout->addItem(horizontalSpacer);
}

void SimuRunMenu::ClearAllBtn()
{
	if (auto* layout = qobject_cast<QHBoxLayout*>(this->layout()))
	{
		while (layout->count() > 0) 
		{
			QLayoutItem* item = layout->takeAt(0);
			if (item)
			{
				if (auto* w = item->widget())
				{
					w->deleteLater();
				}
				delete item;
			}
		}
	}
}

void SimuRunMenu::slotHandleMatlabParam()
{
	if (WorkSpaceManager::Get().GetCurrent())
	{
		if (!m_pParam)
		{
			QString strDir = WorkSpaceManager::Get().GetCurrent()->GetDir();
			m_pParam = new AddParamSetting(strDir);
		}

		m_pParam->setWindowTitle(tr("MatlabParam"));
		m_pParam->show();
	}
}