#include "header/FileHelper.h"

#include <QFile>
#include <QDir>
#include <QDebug>

bool FileHelper::ReadInputFile(QByteArray& arr, QString path, quint64 *width, quint64 *height)
{
	QFile file(path);
	file.open(QIODevice::ReadOnly);

	char data[32000];

	bool first = true;
	while (file.readLine(data, 32000))
	{
		QString str(data);
		if(str.length() == 0)
			break;
		(*height)++;
		str = str.remove(str.length() - 1, 1);
		auto sl = str.split(",");
		if(first)
		{
			*width = sl.length();
			first = false;
		}
		else if (sl.length() != *width)
		{
			qDebug() << "Some thing wrong here " << *width << "  " << sl.length();
			return false;
		}
		for(int i = 0; i < sl.length(); i++)
		{
			auto t = sl[i].PARSE;

			arr.append(static_cast<char>(t));
			arr.append(static_cast<char>((t >> 8)));
			arr.append(static_cast<char>((t >> 16)));
			arr.append(static_cast<char>((t >> 24)));
#ifdef USE_DBL
			arr.append(static_cast<char>((t >> 32)));
			arr.append(static_cast<char>((t >> 40)));
			arr.append(static_cast<char>((t >> 48)));
			arr.append(static_cast<char>((t >> 56)));
#endif
		}
	}
	return true;
}

bool FileHelper::ReadInputFile(myint *arr, QString path, quint64 *width, quint64 *height)
{
	QFile file(path);
	file.open(QIODevice::ReadOnly);

	char data[32000];

	bool first = true;
	int index = 0;
	while (file.readLine(data, 32000))
	{
		QString str(data);
		if(str.length() == 0)
			break;
		(*height)++;
		str = str.remove(str.length() - 1, 1);
		auto sl = str.split(",");
		if(first)
		{
			*width = sl.length();
			first = false;
		}
		else if (sl.length() != *width)
		{
			qDebug() << "Some thing wrong here " << *width << "  " << sl.length();
			return false;
		}
		for(int i = 0; i < sl.length(); i++)
		{
			auto x = sl[i].PARSE;
			arr[index++] = x;
		}
	}
	return true;
}

void FileHelper::GetFileSIze(QString path, quint64 *width, quint64 *height)
{
	QFile file(path);
	file.open(QIODevice::ReadOnly);

	char data[20000];

	bool first = true;
	while (file.readLine(data, 20000))
	{
		QString str(data);
		if(str.length() == 0)
			break;
		(*height)++;
		str = str.remove(str.length() - 1, 1);
		auto sl = str.split(",");
		*width = sl.length();
	}
}

bool FileHelper::WriteOutputFile(char* arr, QString path, quint64 width, quint64 height)
{
	QFile file(path);
	file.open(QIODevice::WriteOnly);

	for(int i = 0; i < height;i++)
	{
		int index = i * sizeof (myflt) * width;
		QString str;
		for(int j = 0; j < width; j++)
		{
#ifdef USE_DBL
			quint64 temp = 0;
			temp =		(((quint64)(arr[index++] & 0xFF)))		| (((quint64)(arr[index++] & 0xFF)) << 8)
					| (((quint64)(arr[index++] & 0xFF)) << 16)	| (((quint64)(arr[index++] & 0xFF)) << 24)
					| (((quint64)(arr[index++] & 0xFF)) << 32)	| (((quint64)(arr[index++] & 0xFF)) << 40)
					| (((quint64)(arr[index++] & 0xFF)) << 48)	| (((quint64)(arr[index++] & 0xFF)) << 56);
			auto d = *((double*)(&temp));
#else
			quint32 temp = 0;
			temp =		(((quint64)(arr[index++] & 0xFF)))		| (((quint64)(arr[index++] & 0xFF)) << 8)
					| (((quint64)(arr[index++] & 0xFF)) << 16)	| (((quint64)(arr[index++] & 0xFF)) << 24);
			auto d = *((float*)(&temp));
#endif
			str += QString("%1").arg(temp, 8, 16, QChar('0'));
			if(j != width - 1)
				str += ",";
		}
		str += "\n";
		file.write(str.toLocal8Bit());
	}

    return true;
}

bool FileHelper::WriteOutputFile(myflt* arr, QString path, quint64 width, quint64 height)
{
	QFile file(path);
	file.open(QIODevice::WriteOnly);

	for(int i = 0; i < height;i++)
	{
		int index = i * width;
		QString str;
		for(int j = 0; j < width; j++)
		{
			str += QString::number(arr[index + j], 'f', 6);
			if(j != width - 1)
				str += ",";
		}
		str += "\n";
		file.write(str.toLocal8Bit());
	}

    return true;
}