/*
   inistream.cc
   This file is part of the Project::OSiRiON world editor 
   and is distributed under the terms and conditions of 
   the GNU General Public License version 2
*/

#include "inistream.h"

namespace editor
{

IniStream::IniStream()
{
	clear();
}

IniStream::~IniStream()
{
	clear();
}

void IniStream::clear() {
	last_read_was_section = false;
	last_read_was_key = false;
	
	key_current.clear();
	value_current.clear();
	section_current.clear();
	
	line_number = 0;
}

bool IniStream::getline(QTextStream &textstream)
{
	if (textstream.atEnd())
		return false;
	
	QString line;

	last_read_was_section = false;
	last_read_was_key = false;
	key_current = "";
	value_current = "";

	line = textstream.readLine(1023);
	line = line.trimmed();
	
	if (line.size()) {
		line_number++;

		if (line[0] == '#' || line[0] == ';') {
			//  line with comment
			comment_next += line;
			comment_next += '\n';
			
		} else {
			// section header
			if (line.size() > 2 && line.startsWith('[') && line.endsWith(']')) {
				section_current = line;
				section_current.remove(0, 1);
				section_current.remove(line.size()-2, 1);

				section_current = section_current.trimmed();
				section_current.toLower();

				comment_current = comment_next;
				comment_next.clear();
				
				last_read_was_section = true;
				return true;
			} else {
				// key=value pair
				int found = line.indexOf('=');
				if (found > -1) {
					// make lowercase and strip spaces
					key_current = line;
					key_current.remove(found, line.size() - found);
					key_current = key_current.trimmed();
					key_current.toLower();

					if (key_current.size()) {
						value_current = line;
						value_current.remove(0, key_current.size() + 1);
						value_current = value_current.trimmed();
						
						comment_current = comment_next;
						comment_next.clear();
						
						last_read_was_key = true;
						return true;
					}

				}
			}
		}
	}
	
	return true;
}

bool IniStream::got_section() const
{
	return last_read_was_section;
}

bool IniStream::got_section(const char *sectionlabel) const
{
	return (last_read_was_section && (section_current.compare(sectionlabel) == 0));
}

bool IniStream::in_section(const char *sectionlabel) const
{
	return ((section_current.compare(sectionlabel) == 0));
}

bool IniStream::got_key(const char *keylabel)
{
	return (last_read_was_key && (key_current.compare(keylabel) == 0));
}

bool IniStream::got_key() const
{
	return last_read_was_key;
}


bool IniStream::got_key_string(const char *keylabel, QString &valuestring)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		valuestring = value_current;
		return true;
	}
	return false;
}

bool IniStream::got_key_vector3f(const char *keylabel, float &x, float &y, float &z)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		QTextStream ts(&value_current, QIODevice::ReadOnly);
		x = y = z = 0;
		ts >> x;
		ts >> y;
		ts >> z;
		return true;	
	}
	return false;
}

bool IniStream::got_key_float(const char *keylabel, float & f)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		QTextStream ts(&value_current, QIODevice::ReadOnly);
		f = 0;
		ts >> f;
		return true;
	}
	return false;
}

/*
bool IniStream::got_key_label(const char * keylabel, QString & labelstring)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		labelstring = value_current.trimmed();
		return true;
	} else {
		return false;
	}
}


bool IniStream::got_key_long(const char * keylabel, long & l)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		std::istringstream is(value_current);
		if (!(is >> l)) {
			l = 0;
		}
		return true;
	} else {
		return false;
	}
}

bool IniStream::got_key_angle(const char *keylabel, float &f)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		std::istringstream is(value_current);
		if ((is >> f)) {
			f = math::degrees360f(f);
		} else {
			f = 0;
		}
		return true;
	} else {
		return false;
	}
}

bool IniStream::got_key_color(const char *keylabel, QColor & color)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		std::istringstream is(value_current);
		float r, g, b, a;
		if ((is >> r) && (is >> g) && (is >> b)) {
			if ((r > 1.0f) || (g > 1.0f) || (b > 1.0f)) {
				if (is >> a) {
					a /= 255.0f;
				}
				r /= 255.0f;
				g /= 255.0f;
				b /= 255.0f;
			} else {
				if (!(is >> a)) {
					a = 1.0f;
				}
			}
			color = QColor(r, g, b, a);
		} else {
			color = QColor();
		}
		return true;
	} else {
		return false;
	}
}

bool IniStream::got_key_bool(const char *keylabel, bool & b)
{
	if (last_read_was_key && (key_current.compare(keylabel) == 0)) {
		std::istringstream is(value_current);

		unsigned int i;
		if (is >> i) {
			if (i > 0 ) {
				b = true;
			} else {
				b = false;
			}
			return true;
		}

		QString val(value_current);
		aux::trim(val);
		aux::lowercase(val);

		if (val.compare("yes") == 0) {
			b = true;
			return true;
		} else if (val.compare("true") == 0) {
			b = true;
			return true;
		} else if (val.compare("no") == 0) {
			b = false;
			return true;
		} else if (val.compare("false") == 0) {
			b = false;
			return true;
		}
	}

	return false;
}
*/

} // namespace editor