#include "NewFiveCreater.h"
#include <QTextCodec>
#include <QTextStream>
#include <QDebug>
#include <QMessageBox>
#include <QDateTime>


static QString BG_SMAPLE_PATH = ":/NameCreater/resource/five/new_bg_sample.jpg";
static QString LABEL_BG_PATH_FORMAT = ":/NameCreater/resource/five/%1_%2.jpg";

static int LABEL_HIGHT_LIMIT = 350;
static QPoint LABEL_POS_START = QPoint(145, 55);
static int LABEL_POS_X_OFFSET = 323;

static QPoint NAME_OFFSET_START = QPoint(90, 335);
static QPoint NAME_OFFSET_REVERSE_START = QPoint(216, 1398);
static qreal NAME_TWO_WORD_OFFSET = 170;
static qreal NAME_THREE_WORD_OFFSET = 145;

static int MAX_LABEL_IN_PAPER = 10;
static int FONT_PIXEL_SIZE = 120;


NewFiveCreater::NewFiveCreater() : INameCreater()
{
}

NewFiveCreater::~NewFiveCreater()
{
}

QList<NameInfo_t> NewFiveCreater::getNameByFileContent(const QByteArray& conetent)
{
	QList<NameInfo_t> nameList;

	QTextCodec* tc = QTextCodec::codecForName("Big5");
	QString codec = tc->toUnicode(conetent.data());
	QTextStream stream(&codec);

	int row = 0;
	while (!stream.atEnd())
	{
		NameInfo_t info;
		QString line = stream.readLine();
		QString name_tc = line;
		QStringList csvList = name_tc.split(',');


		QString name = csvList.at(0); //QString::fromLocal8Bit(csvList.at(0));
		QString bg_type = csvList.at(1);//QString::fromLocal8Bit(csvList.at(1));

		qDebug() << "row :" << row << " " << name << ", bg_type: " << bg_type;

		if (name.compare("name") == 0) {
			//pass first line
			continue;
		}

		info.name1 = name;
		info.bg_path = bg_type;

		nameList.append(info);

		row++;
	}
	return nameList;

}

void NewFiveCreater::generaImageFromCSV(const QString& filename, const QByteArray& filecontent, const QFont& font, const QColor& font_color)
{

	int export_times = 0;

	QList<NameInfo_t> nameList = getNameByFileContent(filecontent);
	if (nameList.isEmpty()) {
		QMessageBox msgBox;
		msgBox.setText(QString("Name is empty ! ").append(filename));
		msgBox.exec();
	}

	QGraphicsScene scene;
	scene.setBackgroundBrush(QBrush(QColor(255, 255, 255)));
	QGraphicsView view(&scene);


	int idx = 0;
	foreach(auto name, nameList) {
		if ((idx % MAX_LABEL_IN_PAPER) == 0) {
			QGraphicsRectItem* bg_item = new QGraphicsRectItem(0, 0, BG_WIDTH, BG_HEIGHT);
			bg_item->setBrush(QBrush(QColor(255, 255, 255)));
			//QGraphicsPixmapItem* bg_item = QGraphicsPixmapItem(QPixmap(BG_SMAPLE_PATH));
			scene.addItem(bg_item);
		}

		for (int l = 0; l < 5; l++) {
			int col_index = idx % MAX_LABEL_IN_PAPER;
			QString label_rel_path = LABEL_BG_PATH_FORMAT.arg(name.bg_path, QString::number(l + 1));
			auto label_item = new QGraphicsPixmapItem(QPixmap(label_rel_path));
			label_item->setPos(LABEL_POS_START.x() + LABEL_POS_X_OFFSET * col_index, LABEL_POS_START.y());
			label_item->setOpacity(1);
			scene.addItem(label_item);

			for (int i = 0; i < 2; i++) {
				int name_word_len = name.name1.count();
				qreal two_word_y = (name_word_len == 2) ? NAME_TWO_WORD_OFFSET / 2.0 : 0;
				qreal offset_y = (name_word_len == 2) ? NAME_TWO_WORD_OFFSET : NAME_THREE_WORD_OFFSET;

				for (int w = 0; w < name_word_len; w++) {
					QGraphicsTextItem* word_item = new QGraphicsTextItem(name.name1.at(w));
					word_item->setFont(font);
					word_item->setDefaultTextColor(font_color);
					qreal _x = (i == 0) ? label_item->x() + NAME_OFFSET_START.x() : label_item->x() + NAME_OFFSET_REVERSE_START.x();
					qreal _y = (i == 0) ? (label_item->y() + NAME_OFFSET_START.y() + two_word_y + offset_y * w) : (label_item->y() + NAME_OFFSET_REVERSE_START.y() - two_word_y - offset_y * w);
					if (i == 1) word_item->setTransform(QTransform::fromScale(-1, -1));
					word_item->setPos(_x, _y);
					scene.addItem(word_item);

				}
			}

			if ((idx % MAX_LABEL_IN_PAPER == MAX_LABEL_IN_PAPER - 1) || idx == nameList.count() * 5 - 1) {
				QString date_str = QDateTime::currentDateTime().toString("MMddhhmm");
				QString file_name = QString("Five_%2_%1.jpg").arg(QString::number(export_times + 1), date_str);
				saveToImage(file_name, &scene);
				export_times++;
				scene.clear();

			}

           idx++;
		}

		


	}

	QMessageBox msgBox;
	msgBox.setText(QString().asprintf("Export Finshed. Count:%d", export_times));
	msgBox.exec();

}