//
// Created by HW on 2023/07/26.
//

// You may need to build the project (run Qt uic code generator) to get "ui_NavBar.h" resolved

#include "navbar.h"
#include "ui_NavBar.h"
#include "config.h"
#include <QTimer>
#include <QtSvg/QtSvg>
#include <QPixmap>
#include "mainwindowlayout.h"
#include "globalvariables.h"
#ifdef _DEBUG
#pragma comment(lib, "Qt5Svgd.lib")
#else
#pragma comment(lib, "Qt5Svg.lib")
#endif
QString url_param;
void ConvertImageToTransparent(QImage &img)
{
	img = img.convertToFormat(QImage::Format_ARGB32);
	union myrgb
	{
		uint rgba;
		uchar rgba_bits[4];
	};
	myrgb* mybits = (myrgb*)img.bits();
	int len = img.width()*img.height();
	while (len--> 0)
	{
		mybits->rgba_bits[3] = (mybits->rgba == 0xFFFFFFFF) ? 0 : 255;
		mybits++;
	}
}

NavBar::NavBar(ConfigResponse *configResponse, MainScreen *mainScreen,QWidget *parent) :
        QWidget(parent), ui(new Ui::NavBar) {
    ui->setupUi(this);
	//this->setAttribute(Qt::WA_DeleteOnClose);
	buffer = new QByteArray;
	/*QString style = "background-color:";
	style += configResponse->basic.backgroud_color.toUpper();
	style += ";";
	setStyleSheet(style);*/
	//setStyleSheet("margin:0");
	setContentsMargins(0, 0, 0, 0);
	if (configResponse->succeed&&configResponse->menus.empty()!=true) {
		getLogoFromInternet(configResponse);
	}
	else {
		getLogoFromLocal();
	}
	layout2 = new QHBoxLayout;
	layout_right = new QHBoxLayout;
	layout_left = new QHBoxLayout;
	logo_label = new QLabel(this);
	//*logo = logo->scaled(this->width() / (5 / scale), this->height());
	logo_label->setScaledContents(true);
	logo_label->setPixmap(QPixmap::fromImage(*logo));
	logo_label->setMaximumHeight(parent->height() / 8);
	layout_left->addWidget(logo_label);
	layout_left->setAlignment(Qt::AlignCenter);
	for (auto buttonStruct : buttonStructs) {
		MyButton *myButton = new MyButton(buttonStruct, height(), height(), &buttons,this);
		myButton->setMaximumHeight(parent->height() / 8);
		layout_right->addWidget(myButton);
		//myButton->show();
		connect(myButton, &MyButton::clicked1, mainWindowLayout, &MainWindowLayout::clickButton);
		buttons << myButton;
	}
	layout_right->setAlignment(Qt::AlignLeft);
	if (!buttonStructs.empty()) {
		connect(this, &NavBar::firstUrl, mainScreen, &MainScreen::firstUrl);
		emit firstUrl(buttonStructs[0].url);
	}
	layout2->addLayout(layout_left, 1);
	layout2->addLayout(layout_right, 4);
	layout_right->setMargin(0);
	layout2->setMargin(0);
	//layout2->setAlignment(Qt::AlignJustify);
	this->setLayout(layout2);
	logo_label->show();
}

NavBar::~NavBar() {
	for (auto buttonStruct : buttonStructs) {
		delete buttonStruct.image;
		delete buttonStruct.image_cover;
	}
	for(auto button : buttons){
		layout_right->removeWidget(button);
        delete button;
    }
	layout2->removeWidget(logo_label);
	delete logo_label;
	delete logo;
	//delete layout_left;
	delete layout_right;
	delete layout2;
    delete ui;
}

void NavBar::paintEvent(QPaintEvent *event) {
    QWidget::paintEvent(event);

    QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing);

    QRectF rect(0, 0, this->width(), this->height());
    painter.fillRect(rect, qColor);

}
void NavBar::resizeEvent(QResizeEvent *event) {
	QWidget::resizeEvent(event);
    for(auto button:buttons){
		button->setMaximumSize(event->size().height(), event->size().height());
        button->update();
    }
	logo_label->setMaximumSize(event->size().width() / 5, event->size().height());
}
void NavBar::getLogoFromInternet(ConfigResponse *configResponse) {
	qColor.setNamedColor(configResponse->basic.backgroud_color);
	
	QUrl url_logo(configResponse->basic.logo_url);
	QNetworkRequest *request_logo = new QNetworkRequest(url_logo);
	manager = new QNetworkAccessManager;
	reply = manager->get(*request_logo);
	QTimer timer;
	timer.setInterval(5000);
	connect(reply, &QNetworkReply::finished, &eventLoop,&QEventLoop::quit);
	connect(&timer, &QTimer::timeout,this, &NavBar::cancelDownload);
	eventLoop.exec();
	timer.stop();
	buffer = new QByteArray;
	delete request_logo;
	reply->close();
	if (downloadSuccess == true) {
		*buffer = reply->readAll();
		logo = new QImage();
		logo->loadFromData(*buffer);
		buffer->clear();
		for (auto button : configResponse->menus) {
			QUrl url_image(button.img);
			QNetworkRequest *request_image = new QNetworkRequest(url_image);
			reply = manager->get(*request_image);
			QTimer timer;
			timer.setInterval(5000);
			connect(reply, &QNetworkReply::finished, &eventLoop, &QEventLoop::quit);
			connect(&timer, &QTimer::timeout, this, &NavBar::cancelDownload);
			eventLoop.exec();
			timer.stop();
			if (!downloadSuccess) {
				break;
			}
			*buffer = reply->readAll();
			
			QSvgRenderer *render_image = new QSvgRenderer(*buffer);
			
			QImage *image = new QImage(200, 200, QImage::Format_ARGB32);
			QPainter painter_image(image);
			painter_image.setCompositionMode(QPainter::CompositionMode_Clear); // 清除画布
			painter_image.fillRect(rect(), Qt::transparent); // 填充透明色
			painter_image.setCompositionMode(QPainter::CompositionMode_SourceOver);     // 恢复默认值
			render_image->render(&painter_image);
			buffer->clear();
			reply->close();

			QUrl url_image_cover(button.img_cover);
			QNetworkRequest *request_image_cover = new QNetworkRequest(url_image_cover);
			reply = manager->get(*request_image_cover);
			timer.setInterval(5000);
			connect(reply, &QNetworkReply::finished, &eventLoop, &QEventLoop::quit);
			connect(&timer, &QTimer::timeout, this, &NavBar::cancelDownload);
			if (!downloadSuccess) {
				break;
			}
			eventLoop.exec();
			*buffer = reply->readAll();
			qDebug() << *buffer;
			QSvgRenderer *render_image_cover = new QSvgRenderer(*buffer);
			QImage *image_cover = new QImage(200, 200, QImage::Format_ARGB32);
			QPainter painter_image_cover(image_cover);
			painter_image_cover.setCompositionMode(QPainter::CompositionMode_Clear); // 清除画布
			painter_image_cover.fillRect(rect(), Qt::transparent); // 填充透明色
			painter_image_cover.setCompositionMode(QPainter::CompositionMode_SourceOver);     // 恢复默认值
			render_image_cover->render(&painter_image_cover);
			buffer->clear();
			reply->close();

			ButtonStruct buttonStruct;
			buttonStruct.image = image;
			buttonStruct.image_cover = image_cover;
			buttonStruct.text = button.title;
			buttonStruct.url = button.url;
			buttonStruct.background_color = configResponse->basic.backgroud_color;
			buttonStruct.text_color.setNamedColor(configResponse->basic.title_color);
			buttonStruct.text_cover_color.setNamedColor(configResponse->basic.title_cover_color);
			buttonStructs << buttonStruct;
			delete request_image;
			delete render_image;
			delete request_image_cover;
			delete render_image_cover;
		}
	}
	delete manager;
	manager = nullptr;
	
}
void NavBar::storeToBuffer() {
	buffer = new QByteArray;
	
}
void NavBar::cancelDownload() {
	disconnect(reply, &QNetworkReply::finished, &eventLoop, &QEventLoop::quit);
	eventLoop.quit();
	reply->abort();
	downloadSuccess = false;
}

void NavBar::getLogoFromLocal() {
	QString dir = QApplication::applicationDirPath();
	QFile file(dir + DEFAULT_FILE);
	if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
		QMessageBox::warning(nullptr, QString::fromLocal8Bit("错误"), QString::fromLocal8Bit("无法打开配置文件"));
		exit(1);
	}
	buffer->clear();
	*buffer = file.readAll();
	file.close();
	QJsonDocument *qJsonDocument = new QJsonDocument;
	*qJsonDocument = QJsonDocument::fromJson(*buffer);
	QJsonObject *obj_root = new QJsonObject;
	if (qJsonDocument->isObject()) {
		*obj_root = qJsonDocument->object();
		delete qJsonDocument;
		QString logo_path = obj_root->value("basic").toObject().value("logo").toString();
		logo = new QImage(logo_path);
		QString color= obj_root->value("basic").toObject().value("backgroud_color").toString();
		qColor.setNamedColor(color);
		QJsonArray *array = new  QJsonArray;
		*array = obj_root->value("menu").toArray();
		for (auto obj : *array) {
			ButtonStruct buttonStruct;
			buttonStruct.text = obj.toObject().value("title").toString();
			buttonStruct.url = QString(BASE_URL)+obj.toObject().value("url").toString();
			buttonStruct.image = new QImage(obj.toObject().value("img").toString());
			buttonStruct.image_cover = new QImage(obj.toObject().value("img_cover").toString());
			buttonStructs << buttonStruct;
		}
		delete array;
	}
	else {
		QMessageBox::warning(nullptr, QString::fromLocal8Bit("错误"), QString::fromLocal8Bit("配置文件损坏"));
		delete obj_root;
		exit(1);
	}
	delete obj_root;

}