From 273f1e2006c8e2706730f1e0f95e13e025cc2f88 Mon Sep 17 00:00:00 2001
From: light7734 <light7734@tuta.io>
Date: Thu, 6 Nov 2025 19:16:37 +0330
Subject: [PATCH] wip: convert from include style to module import style :D

---
 modules/input/CMakeLists.txt   | 13 ++++++++++---
 modules/input/codes.cppm       | 29 +++--------------------------
 modules/input/components.cppm  | 22 ++++++++++------------
 modules/input/events.cppm      | 27 ++++++++++++---------------
 modules/input/mouse_codes.cppm |  0
 modules/input/system.cppm      | 32 ++++++++++++++------------------
 6 files changed, 49 insertions(+), 74 deletions(-)
 delete mode 100644 modules/input/mouse_codes.cppm

diff --git a/modules/input/CMakeLists.txt b/modules/input/CMakeLists.txt
index 34947be..5ccfefc 100644
--- a/modules/input/CMakeLists.txt
+++ b/modules/input/CMakeLists.txt
@@ -1,4 +1,11 @@
-add_library_module(NAME input INTERFACES system.cpp)
-target_link_libraries(input PUBLIC surface math logger tbb)
+add_library_module(
+    NAME
+    input
+    INTERFACES
+    system.cppm
+    codes.cppm
+    components.cppm
+    events.cppm)
+target_link_libraries(input PUBLIC surface math logger)
 
-add_test_module(input system.test.cpp)
+# add_test_module(input system.test.cpp)
diff --git a/modules/input/codes.cppm b/modules/input/codes.cppm
index 6b3993f..05e2ccc 100644
--- a/modules/input/codes.cppm
+++ b/modules/input/codes.cppm
@@ -1,10 +1,7 @@
-#pragma once
+export module input.codes;
+import std;
 
-#include <cstdint>
-
-
-enum : uint16_t
-{
+export enum class Key: std::uint16_t {
 	/* digits */
 	D0 = 48,
 	D1 = 49,
@@ -173,24 +170,4 @@ enum : uint16_t
 	Pause = 284,
 
 	Menu = 348,
-
 };
-
-
-enum : uint8_t
-{
-	Button1 = 0,
-	Button2 = 1,
-	Button3 = 2,
-	Button4 = 3,
-	Button5 = 4,
-	Button6 = 5,
-	Button7 = 6,
-	Button8 = 7,
-
-	LButton = Button1,
-	RButton = Button2,
-	MButton = Button3,
-};
-
-} // namespace lt::Key
diff --git a/modules/input/components.cppm b/modules/input/components.cppm
index e79a62e..edd069c 100644
--- a/modules/input/components.cppm
+++ b/modules/input/components.cppm
@@ -1,19 +1,17 @@
-export module input.components;
-
-#include <vector>
+export module input.system:components;
+import input.codes;
+import std;
 
 namespace lt::input {
 
-struct Trigger
+export struct Trigger
 {
-	uint32_t mapped_keycode;
+	Key mapped_keycode;
 };
 
-struct InputAction
+export struct InputAction
 {
-	using Key = size_t;
-
-	enum class State : uint8_t
+	enum class State : std::uint8_t
 	{
 		inactive,
 		active,
@@ -28,18 +26,18 @@ struct InputAction
 	Trigger trigger;
 };
 
-class InputComponent
+export class InputComponent
 {
 public:
 	InputComponent() = default;
 
-	auto add_action(InputAction action) -> size_t
+	auto add_action(InputAction action) -> std::size_t
 	{
 		m_actions.emplace_back(std::move(action));
 		return m_actions.size() - 1;
 	}
 
-	auto get_action(auto idx) -> const InputAction &
+	auto get_action(std::size_t idx) -> const InputAction &
 	{
 		return m_actions[idx];
 	}
diff --git a/modules/input/events.cppm b/modules/input/events.cppm
index 102be84..fdc4417 100644
--- a/modules/input/events.cppm
+++ b/modules/input/events.cppm
@@ -1,21 +1,24 @@
-#pragma once
+export module input.events;
 
-#include <math/vec2.hpp>
+import input.codes;
+import math.vec2;
+
+import std;
 
 namespace lt::input {
 
-class AnalogEvent
+export class AnalogEvent
 {
 public:
-	AnalogEvent(uint32_t input_code, math::uvec2 pointer_position)
-	    : m_input_code(input_code)
+	AnalogEvent(Key key, math::uvec2 pointer_position)
+	    : m_key(key)
 	    , m_pointer_position(pointer_position)
 	{
 	}
 
-	[[nodiscard]] auto get_code() const -> uint32_t
+	[[nodiscard]] auto get_key() const -> Key
 	{
-		return m_input_code;
+		return m_key;
 	};
 
 	[[nodiscard]] auto get_pointer_position() const -> math::uvec2
@@ -25,20 +28,14 @@ public:
 
 	[[nodiscard]] auto to_string() const -> std::string
 	{
-		auto stream = std::stringstream {};
 		const auto &[x, y] = m_pointer_position;
-		stream << "input::AnalogEvent: " << m_input_code << " @ " << x << ", " << y;
-		return stream.str();
+		return std::format("input::AnalogEvent: {} @ {}, {}", std::to_underlying(m_key), x, y);
 	}
 
 private:
-	uint32_t m_input_code;
+	Key m_key;
 
 	math::uvec2 m_pointer_position;
 };
 
-class AxisEvent
-{
-};
-
 } // namespace lt::input
diff --git a/modules/input/mouse_codes.cppm b/modules/input/mouse_codes.cppm
deleted file mode 100644
index e69de29..0000000
diff --git a/modules/input/system.cppm b/modules/input/system.cppm
index 719699c..7d4aa76 100644
--- a/modules/input/system.cppm
+++ b/modules/input/system.cppm
@@ -1,11 +1,14 @@
-#pragma once
-
-#include <app/system.hpp>
-#include <ecs/registry.hpp>
-#include <memory/reference.hpp>
-#include <surface/components.hpp>
-#include <surface/events/keyboard.hpp>
-#include <surface/events/mouse.hpp>
+export module input.system;
+export import :components;
+import logger;
+import app.system;
+import debug.assertions;
+import ecs.registry;
+import memory.reference;
+import surface.system;
+import surface.events;
+import math.vec2;
+import std;
 
 namespace lt::input {
 
@@ -56,12 +59,7 @@ private:
 
 
 module :private;
-
-#include <input/components.hpp>
-#include <input/system.hpp>
-#include <memory/reference.hpp>
-
-namespace lt::input {
+using namespace lt::input;
 
 template<class... Ts>
 struct overloads: Ts...
@@ -71,7 +69,7 @@ struct overloads: Ts...
 
 System::System(memory::Ref<ecs::Registry> registry): m_registry(std::move(registry))
 {
-	ensure(m_registry, "Failed to initialize input system: null registry");
+	debug::ensure(m_registry, "Failed to initialize input system: null registry");
 }
 
 void System::tick(app::TickInfo tick)
@@ -92,7 +90,7 @@ void System::tick(app::TickInfo tick)
 		// instead of brute-force checking all of them.
 		for (auto &action : input.m_actions)
 		{
-			auto code = action.trigger.mapped_keycode;
+			auto code = std::to_underlying(action.trigger.mapped_keycode);
 			if (code < m_keys.size() && m_keys[code])
 			{
 				if (action.state == InputAction::State::triggered)
@@ -200,5 +198,3 @@ void System::on_button_release(const lt::surface::ButtonReleasedEvent &event)
 {
 	m_buttons[event.get_button()] = false;
 }
-
-} // namespace lt::input