/*
   filesystem/inifile.cc
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

// project headers
#include "filesystem/filesystem.h"
#include "filesystem/inifile.h"

namespace filesystem {

IniFile::IniFile() {}

IniFile::~IniFile() {}

void IniFile::open(std::string const & name) {

	last_read_was_section = false;
	last_read_was_key = false;
	key_current = "";
	value_current = "";
	section_current = "";
	line_number = 0;

	std::string inifile_name("ini/");
	inifile_name.append(name);
	inifile_name.append(".ini");
	
	filesystem::File *f = filesystem::open(inifile_name.c_str());	
	if (!f) {
		return;
	}
	
	std::string fn = f->path();
	fn.append(f->name());
	filesystem::close(f);
	
	inifile_ifs.open(fn.c_str());
	if (!inifile_ifs.is_open()) {
		con_warn << "Could not stream " << fn << "!\n";
		return;
	}
}


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

bool IniFile::got_section(const char * sectionlabel) const {
	return (last_read_was_section && section_current == sectionlabel);
}

bool IniFile::getline() {
	char line[1024];

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

	if (!inifile_ifs.is_open())
		return false;

	if (inifile_ifs.getline(line, 1024)) {
		std::string s(line);
		line_number++;

		if (s.size() == 0) {
			// empty line
		} else
			// comment
			if (s[0] == '#' || s[0] == ';') {
				// condebug << "IniFile got comment " << s << std::endl;
			} else
				// section header
				if (s.size() > 2 && s[0] == '[' && s[s.size()-1] == ']') {
					// condebug << "Inifile got section header " << s << std::endl;
					section_current = s.substr(1, s.size()-2);
					last_read_was_section = true;
					return true;
				} else {
					// key=value pair
					size_t found = s.find('=');
					if (found !=std::string::npos) {
						// FIXME strip spaces, make lowercase
						key_current = s.substr(0, found);

						if (key_current.size() > 0) {
							value_current = s.substr(found+1, s.size() - found - 1);
							last_read_was_key = true;
							return true;
						}

					}
				}
		return true;
	} else
		return false;
}

bool IniFile::got_key_string(char * const keylabel, std::string & valuestring) {
	//condebug << "IniFile got_value_string " << keylabel << " " << last_read_was_key << std::endl;
	if (last_read_was_key && key_current == keylabel) {
		valuestring.assign(value_current);
		return true;
	} else {
		return false;
	}
}

void IniFile::close()
{
	inifile_ifs.close();
}

} // namespace filesystem