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#include "cursor.hpp"
#include "engine/escape.hpp"
#include <cstdlib>
#include <iostream>
CursorController::CursorController() noexcept : _position({.x = 0, .y = 0}) {}
void CursorController::move(const Vector2 &direction, const uint32_t &amount) noexcept
{
auto direction_format = direction_format_map.at(direction);
fmt::print(
fmt::runtime(direction_format.data()),
fmt::arg("esc", ESC),
fmt::arg("amount", amount));
std::cout.flush();
_position = _position.to_direction(direction, static_cast<Vector2::Value>(amount));
notify_subscribers(CursorEvent::POSITION_CHANGE, _position);
}
void CursorController::move_to(const Vector2 &position, bool silent) noexcept
{
fmt::print(
MOVE_CURSOR_TO,
fmt::arg("esc", ESC),
fmt::arg("row", position.get_y()),
fmt::arg("column", position.get_x()));
std::cout.flush();
_position = position;
if (!silent)
{
notify_subscribers(CursorEvent::POSITION_CHANGE, position);
}
}
auto CursorController::where() const noexcept -> Vector2
{
return _position;
}
void CursorController::ensure_position() noexcept
{
fmt::print(REQUEST_CURSOR_POSITION, fmt::arg("esc", ESC));
std::cout.flush();
Vector2Options vector2_options = {};
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
scanf("\033[%u;%uR", &vector2_options.y, &vector2_options.x);
_position = Vector2(vector2_options);
notify_subscribers(CursorEvent::POSITION_CHANGE, _position);
}
void CursorController::hide() noexcept
{
fmt::print(CURSOR_INVISIBLE, fmt::arg("esc", ESC));
std::cout.flush();
}
void CursorController::show() noexcept
{
fmt::print(CURSOR_VISIBLE, fmt::arg("esc", ESC));
std::cout.flush();
}
void CursorController::subscribe(
const Event &event,
const Subscriber &subscriber) noexcept
{
if (_subscribers.count(event) == 0)
{
_subscribers.insert({event, std::vector<Subscriber>()});
}
_subscribers.at(event).push_back(subscriber);
}
void CursorController::notify_subscribers(const Event &event, const Context &context)
const noexcept
{
if (_subscribers.count(event) == 0)
{
return;
}
for (const auto &subscriber : _subscribers.at(event))
{
subscriber->update(context);
}
}
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