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// license:BSD-3-Clause
// copyright-holders:Couriersud

#ifndef NLD_SOLVER_H_
#define NLD_SOLVER_H_

///
/// \file nld_solver.h
///

#include "nld_matrix_solver.h"

#include "core/core_device.h"
#include "core/logic.h"
#include "core/state_var.h"

#include "../plib/pstream.h"

#include <map>
#include <memory>
#include <vector>

namespace netlist::devices
{
	// -------------------------------------------------------------------------
	// solver
	// -------------------------------------------------------------------------

	class nld_solver : public device_t
	{
	public:
		using solver_arena = device_arena;
		using queue_type = detail::queue_base<solver_arena,
											  solver::matrix_solver_t>;

		nld_solver(constructor_param_t data);

		void post_start();
		void stop();

		auto gmin() const -> decltype(solver::solver_parameters_t::m_gmin())
		{
			return m_params.m_gmin();
		}

		solver::static_compile_container
		create_solver_code(solver::static_compile_target target);

		NETLIB_RESETI();
		// NETLIB_UPDATE_PARAMI();

		using solver_ptr = solver_arena::unique_ptr<solver::matrix_solver_t>;

		using net_list_t = solver::matrix_solver_t::net_list_t;

		void reschedule(solver::matrix_solver_t *solv, netlist_time ts);

	private:
		using params_uptr = solver_arena::unique_ptr<
			solver::solver_parameters_t>;

		template <bool KEEP_STATS>
		NETLIB_HANDLERI(fb_step);

		logic_input_t  m_fb_step;
		logic_output_t m_Q_step;

		// FIXME: these should be created in device space
		std::vector<params_uptr> m_mat_params;
		std::vector<solver_ptr>  m_mat_solvers;

		solver::solver_parameters_t m_params;
		queue_type                  m_queue;

		template <typename FT, int SIZE>
		solver_ptr create_solver(std::size_t size, const pstring &solver_name,
								 const solver::solver_parameters_t *params,
								 net_list_t &                       nets);

		template <typename FT>
		solver_ptr create_solvers(const pstring &                    sname,
								  const solver::solver_parameters_t *params,
								  net_list_t &                       nets);

		std::size_t get_solver_id(const solver::matrix_solver_t *net) const;
		solver::matrix_solver_t *solver_by_id(std::size_t id) const;
	};

} // namespace netlist::devices

#endif // NLD_SOLVER_H_