From 1972939ebde39a3e90a50b021b2322d028f344de Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sun, 20 Mar 2022 20:37:43 +0100
Subject: refactor: move updating status from the move cursor command

---
 src/engine/user/cursor.cpp | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

(limited to 'src/engine/user/cursor.cpp')

diff --git a/src/engine/user/cursor.cpp b/src/engine/user/cursor.cpp
index b02a9bc..2a72663 100644
--- a/src/engine/user/cursor.cpp
+++ b/src/engine/user/cursor.cpp
@@ -16,15 +16,22 @@ void CursorController::move(const Vector2 &direction, const uint32_t &amount) no
 	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) noexcept
+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);
+	}
 }
 
 Vector2 CursorController::where() const noexcept
@@ -43,6 +50,8 @@ void CursorController::ensure_position() noexcept
 	scanf("\033[%u;%uR", &vector2_options.y, &vector2_options.x);
 
 	_position = Vector2(vector2_options);
+
+	notify_subscribers(CursorEvent::POSITION_CHANGE, _position);
 }
 
 void CursorController::hide() noexcept
@@ -56,3 +65,28 @@ 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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