#include "input/api/Wiimote/NativeWiimoteController.h"

#include "input/api/Wiimote/WiimoteControllerProvider.h"

#include <pugixml.hpp>

NativeWiimoteController::NativeWiimoteController(size_t index)
	: base_type(fmt::format("{}", index), fmt::format("Controller {}", index + 1)), m_index(index)
{
	m_settings.motion = true;
}

void NativeWiimoteController::save(pugi::xml_node& node)
{
	base_type::save(node);

	node.append_child("packet_delay").append_child(pugi::node_pcdata).set_value(
		fmt::format("{}", m_packet_delay).c_str());
}

void NativeWiimoteController::load(const pugi::xml_node& node)
{
	base_type::load(node);

	if (const auto value = node.child("packet_delay"))
		m_packet_delay = ConvertString<uint32>(value.child_value());
}

bool NativeWiimoteController::connect()
{
	if (is_connected())
		return true;

	if (!m_provider->is_registered_device(m_index))
	{
		m_provider->get_controllers();
	}

	if (m_provider->is_connected(m_index))
	{
		m_provider->set_packet_delay(m_index, m_packet_delay);
		m_provider->set_led(m_index, m_player_index);
		return true;
	}

	return false;
}

bool NativeWiimoteController::is_connected()
{
	if (m_provider->is_connected(m_index))
	{
		m_provider->set_packet_delay(m_index, m_packet_delay);
		return true;
	}

	return false;
}

void NativeWiimoteController::set_player_index(size_t player_index)
{
	m_player_index = player_index;
	m_provider->set_led(m_index, m_player_index);
}

NativeWiimoteController::Extension NativeWiimoteController::get_extension() const
{
	Extension result = None;
	const auto ext = m_provider->get_state(m_index).m_extension;
	if (std::holds_alternative<NunchuckData>(ext))
		result = Nunchuck;
	else if (std::holds_alternative<ClassicData>(ext))
		result = Classic;

	return result;
}

bool NativeWiimoteController::is_mpls_attached() const
{
	return m_provider->get_state(m_index).m_motion_plus.has_value();
}

bool NativeWiimoteController::has_position()
{
	const auto state = m_provider->get_state(m_index);
	return std::any_of(state.ir_camera.dots.cbegin(), state.ir_camera.dots.cend(),
	                   [](const IRDot& v) { return v.visible; });
}

glm::vec2 NativeWiimoteController::get_position()
{
	const auto state = m_provider->get_state(m_index);
	return state.ir_camera.position;
}

glm::vec2 NativeWiimoteController::get_prev_position()
{
	const auto state = m_provider->get_state(m_index);
	return state.ir_camera.m_prev_position;
}

bool NativeWiimoteController::has_low_battery()
{
	const auto state = m_provider->get_state(m_index);
	return HAS_FLAG(state.flags, kBatteryEmpty);
}

void NativeWiimoteController::start_rumble()
{
	if (m_settings.rumble < 1.0f)
	{
		return;
	}

	m_provider->set_rumble(m_index, true);
}

void NativeWiimoteController::stop_rumble()
{
	m_provider->set_rumble(m_index, false);
}

MotionSample NativeWiimoteController::get_motion_sample()
{
	const auto state = m_provider->get_state(m_index);
	return state.motion_sample;
}

MotionSample NativeWiimoteController::get_nunchuck_motion_sample() const
{
	const auto state = m_provider->get_state(m_index);
	if (std::holds_alternative<NunchuckData>(state.m_extension))
	{
		return std::get<NunchuckData>(state.m_extension).motion_sample;
	}

	return {};
}

std::string NativeWiimoteController::get_button_name(uint64 button) const
{
	switch (button)
	{
	case kWiimoteButton_A: return "A";
	case kWiimoteButton_B: return "B";

	case kWiimoteButton_One: return "1";
	case kWiimoteButton_Two: return "2";

	case kWiimoteButton_Plus: return "+";
	case kWiimoteButton_Minus: return "-";

	case kWiimoteButton_Home: return "HOME";

	case kWiimoteButton_Up: return "UP";
	case kWiimoteButton_Down: return "DOWN";
	case kWiimoteButton_Left: return "LEFT";
	case kWiimoteButton_Right: return "RIGHT";

	// nunchuck
	case kWiimoteButton_C: return "C";
	case kWiimoteButton_Z: return "Z";

	// classic
	case kHighestWiimote + kClassicButton_A: return "A";
	case kHighestWiimote + kClassicButton_B: return "B";
	case kHighestWiimote + kClassicButton_Y: return "Y";
	case kHighestWiimote + kClassicButton_X: return "X";

	case kHighestWiimote + kClassicButton_Plus: return "+";
	case kHighestWiimote + kClassicButton_Minus: return "-";

	case kHighestWiimote + kClassicButton_Home: return "HOME";

	case kHighestWiimote + kClassicButton_Up: return "UP";
	case kHighestWiimote + kClassicButton_Down: return "DOWN";
	case kHighestWiimote + kClassicButton_Left: return "LEFT";
	case kHighestWiimote + kClassicButton_Right: return "RIGHT";

	case kHighestWiimote + kClassicButton_L: return "L";
	case kHighestWiimote + kClassicButton_R: return "R";

	case kHighestWiimote + kClassicButton_ZL: return "ZL";
	case kHighestWiimote + kClassicButton_ZR: return "ZR";
	}

	return base_type::get_button_name(button);
}

uint32 NativeWiimoteController::get_packet_delay()
{
	m_packet_delay = m_provider->get_packet_delay(m_index);
	return m_packet_delay;
}

void NativeWiimoteController::set_packet_delay(uint32 delay)
{
	m_packet_delay = delay;
	m_provider->set_packet_delay(m_index, delay);
}

ControllerState NativeWiimoteController::raw_state()
{
	ControllerState result{};
	if (!is_connected())
		return result;

	const auto state = m_provider->get_state(m_index);
	for (int i = 0; i < std::numeric_limits<uint16>::digits; i++)
		result.buttons[i] = state.buttons & (1<<i);

	if (std::holds_alternative<NunchuckData>(state.m_extension))
	{
		const auto nunchuck = std::get<NunchuckData>(state.m_extension);
		if (nunchuck.c)
			result.buttons[kWiimoteButton_C]=true;

		if (nunchuck.z)
			result.buttons[kWiimoteButton_Z]=true;

		result.axis = nunchuck.axis;
	}
	else if (std::holds_alternative<ClassicData>(state.m_extension))
	{
		const auto classic = std::get<ClassicData>(state.m_extension);
		uint64 buttons = (uint64)classic.buttons << kHighestWiimote;
		for (int i = 0; i < std::numeric_limits<uint64>::digits; i++)
			result.buttons[i] = result.buttons[i] || (buttons & (1 << i));

		result.axis = classic.left_axis;
		result.rotation = classic.right_axis;
		result.trigger = classic.trigger;
	}

	return result;
}