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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
 * putil.h
 *
 */

#ifndef P_UTIL_H_
#define P_UTIL_H_

#include "pstring.h"

#include <initializer_list>
#include <algorithm>
#include <vector> // <<= needed by windows build

namespace plib
{
	namespace util
	{
		const pstring buildpath(std::initializer_list<pstring> list );
		const pstring environment(const pstring &var, const pstring &default_val);
	}

	namespace container
	{
		template <class C>
		bool contains(C &con, const typename C::value_type &elem)
		{
			return std::find(con.begin(), con.end(), elem) != con.end();
		}

		static constexpr const std::size_t npos = static_cast<std::size_t>(-1);
		template <class C>
		std::size_t indexof(C &con, const typename C::value_type &elem)
		{
			auto it = std::find(con.begin(), con.end(), elem);
			if (it != con.end())
				return static_cast<std::size_t>(it - con.begin());
			return npos;
		}

		template <class C>
		void insert_at(C &con, const std::size_t index, const typename C::value_type &elem)
		{
			con.insert(con.begin() + static_cast<std::ptrdiff_t>(index), elem);
		}

		template <class C>
		void remove(C &con, const typename C::value_type &elem)
		{
			con.erase(std::remove(con.begin(), con.end(), elem), con.end());
		}
	}

	template <class C>
	struct indexed_compare
	{
		explicit indexed_compare(const C& target): m_target(target) {}

		bool operator()(int a, int b) const { return m_target[a] < m_target[b]; }

		const C& m_target;
	};

	// ----------------------------------------------------------------------------------------
	// string list
	// ----------------------------------------------------------------------------------------

	std::vector<pstring> psplit(const pstring &str, const pstring &onstr, bool ignore_empty = false);
	std::vector<pstring> psplit(const pstring &str, const std::vector<pstring> &onstrl);

}

#endif /* P_UTIL_H_ */