/*
   common/file.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 "file.h"
#include "console.h"

namespace common {

std::string File::datadir = "";
std::string File::homedir = "";
std::string File::basedir = "";
std::string File::moddir = "";

void File::open(const char * filename, ios_base::openmode mode)
{
	std::string fn;
	
	// if moddir is set, try the mods subdir first
	if (moddir.size() > 0) {
		// try homedir+moddir
		fn = homedir;
		fn.append(moddir);
		fn.append(filename);
		std::ifstream::open(fn.c_str(), mode);
		if (this->is_open()) {
			condebug << "File opened " << fn << std::endl;
			return;
		}

		// try datadir + moddir
		fn = datadir;
		fn.append(moddir);
		std::ifstream::open(fn.c_str(), mode);
		if (this->is_open()) {
			condebug << "File opened " << fn << std::endl;
			return;
		}
	}

	// try homedir+basedir
	fn = homedir;
	fn.append(basedir);
	fn.append(filename);
	std::ifstream::open(fn.c_str(), mode);
	if (this->is_open()) {
		condebug << "File opened " << fn << std::endl;
		return;
	}

	// try datadir+basedir
	fn = datadir;
	fn.append(basedir);
	fn.append(filename);
	std::ifstream::open(fn.c_str(), mode);

	if (!this->is_open()) {	
		condebug << "File could not open " << filename << std::endl;
	} else {
		conmesg << "File opened " << fn << std::endl;
	}
}

} // namespace common