#include "terminal.hpp"

TerminalState::TerminalState(termios term_attrs) noexcept : _term_attrs(term_attrs) {}

void TerminalState::set_input_mode_flag(TerminalInputModeFlag flag, bool is_on) noexcept
{
	auto flag_num = static_cast<tcflag_t>(flag);

	_term_attrs.c_iflag &= is_on ? flag_num : ~flag_num;
}

void TerminalState::set_output_mode_flag(TerminalOutputModeFlag flag, bool is_on) noexcept
{
	auto flag_num = static_cast<tcflag_t>(flag);

	_term_attrs.c_oflag &= is_on ? flag_num : ~flag_num;
}

void TerminalState::set_control_mode_flag(
	TerminalControlModeFlag flag,
	bool is_on) noexcept
{
	auto flag_num = static_cast<tcflag_t>(flag);

	_term_attrs.c_cflag &= is_on ? flag_num : ~flag_num;
}

void TerminalState::set_local_mode_flag(TerminalLocalModeFlag flag, bool is_on) noexcept
{
	auto flag_num = static_cast<tcflag_t>(flag);

	_term_attrs.c_lflag &= is_on ? flag_num : ~flag_num;
}

auto TerminalState::get_attributes() noexcept -> termios
{
	return _term_attrs;
}

auto get_terminal_state(int term_fd) noexcept -> TerminalState
{
	termios term_attrs{};

	tcgetattr(term_fd, &term_attrs);

	return TerminalState(term_attrs);
}

void set_terminal_state(int term_fd, TerminalState state) noexcept
{
	auto state_attrs = state.get_attributes();

	tcsetattr(term_fd, TCSAFLUSH, &state_attrs);
}