/**
 * \file BranchList.cpp
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Martin Vermeer
 * \author Jürgen Spitzmüller
 *
 * Full author contact details are available in file CREDITS.
 */

#include <config.h>

#include "BranchList.h"
#include "Color.h"

#include "frontends/Application.h"

#include "support/lstrings.h"

#include <algorithm>

using namespace std;


namespace lyx {

namespace {

class BranchNamesEqual : public std::unary_function<Branch, bool>
{
public:
	BranchNamesEqual(docstring const & name) : name_(name) {}

	bool operator()(Branch const & branch) const
	{
		return branch.branch() == name_;
	}
private:
	docstring name_;
};
}


Branch::Branch()
	: selected_(false), filenameSuffix_(false)
{
	// no theApp() with command line export
	if (theApp())
		theApp()->getRgbColor(Color_background, color_);
}


docstring const & Branch::branch() const
{
	return branch_;
}


void Branch::setBranch(docstring const & s)
{
	branch_ = s;
}


bool Branch::isSelected() const
{
	return selected_;
}


bool Branch::setSelected(bool b)
{
	if (b == selected_)
		return false;
	selected_ = b;
	return true;
}


bool Branch::hasFileNameSuffix() const
{
	return filenameSuffix_;
}


void Branch::setFileNameSuffix(bool b)
{
	filenameSuffix_ = b;
}


RGBColor const & Branch::color() const
{
	return color_;
}


void Branch::setColor(RGBColor const & c)
{
	color_ = c;
}


void Branch::setColor(string const & str)
{
	if (str.size() == 7 && str[0] == '#')
		color_ = rgbFromHexName(str);
	else
		// no color set or invalid color - use normal background
		theApp()->getRgbColor(Color_background, color_);
}


Branch * BranchList::find(docstring const & name)
{
	List::iterator it =
		find_if(list.begin(), list.end(), BranchNamesEqual(name));
	return it == list.end() ? 0 : &*it;
}


Branch const * BranchList::find(docstring const & name) const
{
	List::const_iterator it =
		find_if(list.begin(), list.end(), BranchNamesEqual(name));
	return it == list.end() ? 0 : &*it;
}


bool BranchList::add(docstring const & s)
{
	bool added = false;
	size_t i = 0;
	while (true) {
		size_t const j = s.find_first_of(separator_, i);
		docstring name;
		if (j == docstring::npos)
			name = s.substr(i);
		else
			name = s.substr(i, j - i);
		// Is this name already in the list?
		bool const already =
			find_if(list.begin(), list.end(),
				     BranchNamesEqual(name)) != list.end();
		if (!already) {
			added = true;
			Branch br;
			br.setBranch(name);
			br.setSelected(false);
			br.setFileNameSuffix(false);
			list.push_back(br);
		}
		if (j == docstring::npos)
			break;
		i = j + 1;
	}
	return added;
}


bool BranchList::remove(docstring const & s)
{
	size_t const size = list.size();
	list.remove_if(BranchNamesEqual(s));
	return size != list.size();
}


bool BranchList::rename(docstring const & oldname,
	docstring const & newname, bool const merge)
{
	if (newname.empty())
		return false;
	if (find_if(list.begin(), list.end(),
		    BranchNamesEqual(newname)) != list.end()) {
		// new name already taken
		if (merge)
		      return remove(oldname);
		return false;
	}

	Branch * branch = find(oldname);
	if (!branch)
		return false;
	branch->setBranch(newname);
	return true;
}


docstring BranchList::getFileNameSuffix() const
{
	docstring result;
	List::const_iterator it = list.begin();
	for (; it != list.end(); ++it) {
		if (it->isSelected() && it->hasFileNameSuffix())
			result += "-" + it->branch();
	}
	return support::subst(result, from_ascii("/"), from_ascii("_"));
}

} // namespace lyx