commit 9c0343d6e71fc3d55a0c22089d0aa2de974dd7b5
Author: Yohan Boujon <yo.boujon@gmail.com>
Date:   Tue May 6 23:01:28 2025 +0200

    Initial commit.

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..581f8da
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+**/build/**
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..3ae5498
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,43 @@
+cmake_minimum_required(VERSION 3.18)
+project(
+  ftxui_template
+  DESCRIPTION "FTXUI Template Project"
+  HOMEPAGE_URL "https://www.etheryo.fr/"
+  LANGUAGES CXX C
+)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+
+# Dependencies
+include(dependencies.cmake)
+
+set(TARGET rmlui_test)
+set(SRC "${CMAKE_CURRENT_SOURCE_DIR}/src")
+add_executable(${TARGET}
+    ${SRC}/ui.cpp
+    ${SRC}/logger.cpp
+    ${SRC}/event.cpp
+    ${SRC}/main.cpp
+)
+
+# Include folders
+target_include_directories(${TARGET} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/include")
+target_include_directories(${TARGET} PRIVATE "${FTXUI_INCLUDE_DIRS}")
+
+# Libraries
+target_link_libraries(
+    ${TARGET} PRIVATE
+    component
+    dom
+    screen
+)
+
+# Output folder
+set_target_properties(${TARGET}
+    PROPERTIES
+    ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+    LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}"
+)
diff --git a/dependencies.cmake b/dependencies.cmake
new file mode 100644
index 0000000..6fef553
--- /dev/null
+++ b/dependencies.cmake
@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.22)    #FTXUI asks for CMake 3.22 and C++ 17
+
+include(FetchContent)
+
+FetchContent_Declare(ftxui
+  GIT_REPOSITORY https://github.com/ArthurSonzogni/ftxui
+  GIT_TAG v6.0.2
+)
+
+FetchContent_GetProperties(ftxui)
+if(NOT ftxui_POPULATED)
+  FetchContent_Populate(ftxui)
+  add_subdirectory(${ftxui_SOURCE_DIR} ${ftxui_BINARY_DIR} EXCLUDE_FROM_ALL)
+endif()
+set(FTXUI_INCLUDE_DIRS 
+    "${ftxui_SOURCE_DIR}/include"
+)
\ No newline at end of file
diff --git a/include/event.h b/include/event.h
new file mode 100644
index 0000000..825183f
--- /dev/null
+++ b/include/event.h
@@ -0,0 +1,53 @@
+#ifndef HEADER_EVENT_FTXUI
+#define HEADER_EVENT_FTXUI
+
+#include <deque>
+#include <any>
+#include <functional>
+#include <mutex>
+
+enum class EventType : uint8_t
+{
+    SWITCH_SCREEN,
+    SEND_COMMAND,
+    LAUNCH_INSTANCE,
+    STOP,
+};
+
+struct EventPayload
+{
+    EventType type;
+    std::any data;
+};
+
+class EventHandler
+{
+public:
+    EventHandler();
+    void set_handler(std::function<void(EventHandler &, const EventPayload &)> function);
+    void loop();
+    void stop();
+
+protected:
+    void add_event(const EventPayload &payload);
+    friend class Event;
+
+private:
+    bool _is_running;
+    std::function<void(EventHandler &, const EventPayload &)> _handler;
+    std::deque<EventPayload> _event_buffer;
+    std::mutex _mutex;
+};
+
+class Event
+{
+public:
+    Event(EventHandler &eventhandler);
+    void send_event(const EventPayload &payload);
+    void send_event(const EventType &type, std::any data = {});
+
+private:
+    EventHandler &_event_handler;
+};
+
+#endif // HEADER_EVENT_FTXUI
\ No newline at end of file
diff --git a/include/logger.h b/include/logger.h
new file mode 100644
index 0000000..068da37
--- /dev/null
+++ b/include/logger.h
@@ -0,0 +1,46 @@
+#ifndef HEADER_LOGGER_FTXUI
+#define HEADER_LOGGER_FTXUI
+
+#include <string>
+#include <vector>
+#include <ostream>
+
+enum class LoggerType : uint8_t
+{
+    _UNDEFINED,
+    PRINT,
+    COMMAND,
+    // You can add more here
+    _COUNT
+};
+
+struct LoggerData
+{
+    std::string str;
+    uint64_t epoch;
+    LoggerType type;
+};
+
+class Logger
+{
+public:
+    static Logger &GetInstance()
+    {
+        static Logger instance;
+        return instance;
+    }
+    void set_max_size(int size);
+    void push_back(std::string str, LoggerType type = LoggerType::_UNDEFINED);
+    const std::vector<LoggerData> &get_buffer(void) noexcept;
+
+private:
+    Logger();
+    ~Logger();
+    void update_view();
+
+    size_t _maxSize;
+    std::vector<LoggerData> _buffer;
+    std::vector<LoggerData> _view;
+};
+
+#endif // HEADER_LOGGER_FTXUI
diff --git a/include/pages/page.h b/include/pages/page.h
new file mode 100644
index 0000000..729e977
--- /dev/null
+++ b/include/pages/page.h
@@ -0,0 +1,24 @@
+#ifndef HEADER_PAGE_FTXUI
+#define HEADER_PAGE_FTXUI
+
+#include <ftxui/component/component_base.hpp>
+#include "event.h"
+
+class ScreenPage : public Event
+{
+public:
+    ScreenPage(EventHandler &handler)
+        : Event(handler), _page()
+    {
+    }
+
+    ftxui::Component *getPage()
+    {
+        return &_page;
+    }
+
+protected:
+    ftxui::Component _page;
+};
+
+#endif // HEADER_PAGE_FTXUI
\ No newline at end of file
diff --git a/include/pages/page1.h b/include/pages/page1.h
new file mode 100644
index 0000000..e69de29
diff --git a/include/pages/page2.h b/include/pages/page2.h
new file mode 100644
index 0000000..e69de29
diff --git a/include/ui.h b/include/ui.h
new file mode 100644
index 0000000..c10b786
--- /dev/null
+++ b/include/ui.h
@@ -0,0 +1,39 @@
+#ifndef HEADER_UI_FTXUI
+#define HEADER_UI_FTXUI
+
+#include "pages/page.h"
+
+#include <vector>
+#include <ftxui/component/component_base.hpp>
+#include <ftxui/component/screen_interactive.hpp>
+#include <ftxui/component/component.hpp>
+
+class UserInterface
+{
+public:
+    static UserInterface &GetInstance()
+    {
+        static UserInterface instance;
+        return instance;
+    }
+
+    ftxui::ScreenInteractive *get_screen();
+    void add_screen(ScreenPage *p);
+    void select_screen(size_t index);
+    void select_screen(const ScreenPage *p);
+    void start();
+    void update();
+
+private:
+    UserInterface();
+    ~UserInterface();
+
+    ftxui::ScreenInteractive _screen;
+    std::vector<ScreenPage *> _pages;
+    ftxui::Component _page_container;
+    ftxui::Component _main_container;
+    ftxui::Component _main_renderer;
+    int _page_index;
+};
+
+#endif // HEADER_RENDER_FTXUI
\ No newline at end of file
diff --git a/src/event.cpp b/src/event.cpp
new file mode 100644
index 0000000..dcdb852
--- /dev/null
+++ b/src/event.cpp
@@ -0,0 +1,63 @@
+#include "event.h"
+
+#include <thread>
+#include <chrono>
+#include <iostream>
+
+constexpr int64_t EVENT_LOOP_WAIT_MS = 100;
+
+// Event
+
+Event::Event(EventHandler &eventhandler)
+    : _event_handler(eventhandler)
+{
+}
+
+void Event::send_event(const EventPayload &payload)
+{
+    _event_handler.add_event(payload);
+}
+
+void Event::send_event(const EventType &type, std::any data)
+{
+    _event_handler.add_event({type, data});
+}
+
+// EventHandler
+
+EventHandler::EventHandler()
+    : _is_running(false), _event_buffer({})
+{
+}
+
+void EventHandler::set_handler(std::function<void(EventHandler &, const EventPayload &)> function)
+{
+    _handler = function;
+}
+
+void EventHandler::add_event(const EventPayload &payload)
+{
+    std::lock_guard<std::mutex> lock(_mutex);
+    _event_buffer.push_back(payload);
+}
+
+void EventHandler::loop()
+{
+    _is_running = true;
+    while (_is_running)
+    {
+        if (!_event_buffer.empty())
+        {
+            std::lock_guard<std::mutex> lock(_mutex);
+            EventPayload evt = _event_buffer.front();
+            _event_buffer.pop_front();
+            _handler(*this, evt);
+        }
+        std::this_thread::sleep_for(std::chrono::milliseconds(EVENT_LOOP_WAIT_MS));
+    }
+}
+
+void EventHandler::stop()
+{
+    _is_running = false;
+}
diff --git a/src/logger.cpp b/src/logger.cpp
new file mode 100644
index 0000000..58d6b3b
--- /dev/null
+++ b/src/logger.cpp
@@ -0,0 +1,41 @@
+#include "logger.h"
+#include "ui.h"
+
+#include <algorithm>
+#include <chrono>
+
+constexpr int MAX_SIZE = 99;
+
+Logger::Logger()
+    : _maxSize(MAX_SIZE), _buffer({})
+{
+}
+
+void Logger::set_max_size(int size)
+{
+    if (size == _maxSize)
+        return;
+    _maxSize = size;
+    update_view();
+}
+
+void Logger::push_back(std::string str, LoggerType type)
+{
+    const uint64_t now = static_cast<uint64_t>(std::chrono::system_clock::now().time_since_epoch() / std::chrono::milliseconds(1));
+    _buffer.push_back({str, now, type});
+    update_view();
+    UserInterface::GetInstance().update();
+}
+
+void Logger::update_view()
+{
+    typename std::vector<LoggerData>::iterator itBegin = _buffer.begin();
+    if (_buffer.size() >= _maxSize)
+        itBegin = _buffer.end() - _maxSize;
+
+    _view.clear();
+    std::copy(itBegin, _buffer.end(), std::back_inserter(_view));
+}
+
+// Getters
+const std::vector<LoggerData> &Logger::get_buffer(void) noexcept { return _view; }
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..a4677a3
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,43 @@
+#include <iostream>
+#include <string>
+#include <thread>
+
+#include "ui.h"
+#include "event.h"
+
+using namespace ftxui;
+
+std::thread t_instance;
+
+static inline void handle(EventHandler &handler, const EventPayload &payload)
+{
+    UserInterface &ui = UserInterface::GetInstance();
+
+    if (payload.type == EventType::STOP)
+        handler.stop();
+    else if (payload.type == EventType::SWITCH_SCREEN)
+        ui.select_screen(std::any_cast<size_t>(payload.data));
+}
+
+int main(int argc, char **argv)
+{
+    // Event/Screen
+    EventHandler handler;
+    UserInterface &ui = UserInterface::GetInstance();
+
+    // Page declaration
+    // ScreenPageDebugger debugger(handler, screen);
+    // screen.add_screen(&launcher);
+
+    // Event handler function
+    handler.set_handler(handle);
+
+    // Main logic
+    std::thread t_event(&EventHandler::loop, &handler);
+    ui.start();
+
+    // Finish
+    handler.stop();
+    t_event.join();
+    return 0;
+}
\ No newline at end of file
diff --git a/src/pages/page1.cpp b/src/pages/page1.cpp
new file mode 100644
index 0000000..7c21d1b
--- /dev/null
+++ b/src/pages/page1.cpp
@@ -0,0 +1,130 @@
+#include "pages/debugger.h"
+#include "logger.h"
+
+#include "toolBox.h"
+
+#include "ftxui/component/component.hpp"
+#include "ftxui/component/component_base.hpp"
+#include "ftxui/component/event.hpp"
+#include "ftxui/component/screen_interactive.hpp"
+#include "ftxui/dom/elements.hpp"
+
+using namespace ftxui;
+
+constexpr uint8_t LOGGER_OFFSET = 7;
+
+inline ftxui::Element ScreenPageDebugger::transform(ftxui::InputState state)
+{
+    if (state.is_placeholder)
+        state.element |= dim;
+
+    if (state.focused)
+    {
+        state.element |= color(Color::White);
+        input_selected = true;
+    }
+    else
+    {
+        input_selected = false;
+    }
+
+    return state.element;
+}
+
+inline bool ScreenPageDebugger::catch_event(Event event)
+{
+    if (event.is_character())
+    {
+        // Checking if it is a command...
+    }
+
+    const int size = _render.get_screen()->dimy();
+    log_buffer.set_max_size(size - LOGGER_OFFSET);
+    if (event == Event::Return)
+    {
+        send_event(EventType::SEND_COMMAND, cmd_str);
+    }
+    return (event == Event::Return);
+}
+
+ftxui::Element ScreenPageDebugger::render_input()
+{
+    Element arrow = text("> ");
+    if (input_selected)
+        arrow |= bgcolor(Color::White) | color(Color::Black);
+    else
+        arrow |= color(Color::Default) | bgcolor(Color::Default);
+
+    return vbox({separatorEmpty(),
+                 text("Send an event"),
+                 hbox({arrow,
+                       input_event->Render()})});
+}
+
+ftxui::Element ScreenPageDebugger::render_log()
+{
+    Elements log_lines;
+    for (const auto &logger : log_buffer.get_buffer())
+    {
+        if(logger.type == LoggerType::STUB) {
+            log_lines.push_back(hbox({
+                text(get_time_str(logger.epoch)) | dim,
+                text(logger.str)
+            }));
+        } else {
+            log_lines.push_back(hbox({
+                text(logger.str) | italic | dim
+            }));
+        }
+    }
+
+    auto log_content = vbox(std::move(log_lines)) | yframe;
+
+    return window(
+               text("log") | hcenter | bold,
+               log_content | vscroll_indicator | frame) |
+           flex;
+}
+
+ftxui::Element ScreenPageDebugger::render_status()
+{
+    return window(text("status") | hcenter | bold, text("content") | center | dim, BorderStyle::EMPTY) | flex | size(WIDTH, GREATER_THAN, 30);
+}
+
+ScreenPageDebugger::ScreenPageDebugger(EventHandler &handler, ScreenRender &sr)
+    : ScreenPage(handler), _render(sr), input_selected(false)
+{
+    input_option.transform = [&](const InputState state)
+    {
+        return this->transform(state);
+    };
+
+    input_event = Input(&cmd_str, "Press 'enter' to send the event. Type '/help' for commands.", input_option);
+
+    Component input = Renderer(input_event, [&]()
+                               { return render_input(); });
+
+    input |= CatchEvent(
+        [&](const Event &event)
+        {
+            return this->catch_event(event);
+        });
+
+    Component log = Renderer([&]()
+                             { return render_log(); });
+
+    Component status = Renderer([&]()
+                                { return render_status(); });
+
+    _page = Container::Vertical({
+        Container::Horizontal({log,
+                               status}) |
+            yflex,
+        input,
+    });
+}
+
+Logger *ScreenPageDebugger::get_logger()
+{
+    return &log_buffer;
+}
diff --git a/src/pages/page2.cpp b/src/pages/page2.cpp
new file mode 100644
index 0000000..96e9888
--- /dev/null
+++ b/src/pages/page2.cpp
@@ -0,0 +1,57 @@
+#include "pages/launcher.h"
+#include "loader.h"
+
+#include "ftxui/component/component.hpp"
+#include "ftxui/component/component_base.hpp"
+#include "ftxui/component/event.hpp"
+#include "ftxui/component/screen_interactive.hpp"
+#include "ftxui/dom/elements.hpp"
+
+using namespace ftxui;
+
+static const std::vector<std::string> _launcher_entries = {
+    "Legacy",
+    "Debug"};
+
+static const std::vector<std::string> _library_entries = {
+    "Reply",
+    "UDP_IP",
+    "Emit",
+    "BOUCHON",
+    "Push"};
+
+inline void ScreenPageLauncher::on_launch()
+{
+    this->send_event(EventType::SWITCH_SCREEN, static_cast<size_t>(1));
+    // const std::string name = get_simple_name(_library_entries[_library_selected]);
+    this->send_event(EventType::LAUNCH_INSTANCE, _library_entries[_library_selected]);
+}
+
+ScreenPageLauncher::ScreenPageLauncher(EventHandler &handler)
+    : ScreenPage(handler)
+{
+    // Will be used later: for now crashes the launcher because it instanciate some values...
+    // _library_entries = get_libraries();
+    _library_selected = 0;
+    _library = Radiobox(&_library_entries, &_library_selected);
+
+    _launcher_selected = 0;
+    _launcher = Radiobox(&_launcher_entries, &_launcher_selected);
+
+    Component library_selection = Renderer(_library, [&]
+                                           { return vbox({window(text("Select Library"),
+                                                                 _library->Render() | vscroll_indicator | frame) |
+                                                          center | flex}) |
+                                                    xflex_grow; });
+    Component launcher_selection = Renderer(_launcher, [&]
+                                            { return vbox({window(text("Select launcher"),
+                                                                  _launcher->Render() | vscroll_indicator | frame) |
+                                                           center | flex}); });
+
+    _launch_button = Container::Vertical({Button("Launch", [&]
+                                                 { return on_launch(); })});
+    Component launch = Renderer(_launch_button, [&]
+                                { return vbox({_launch_button->Render()}) | center | xflex; });
+
+    _page = Container::Vertical({Container::Horizontal({library_selection, launcher_selection, launch}) | flex});
+}
\ No newline at end of file
diff --git a/src/ui.cpp b/src/ui.cpp
new file mode 100644
index 0000000..fd99aaf
--- /dev/null
+++ b/src/ui.cpp
@@ -0,0 +1,63 @@
+#include "ui.h"
+#include <algorithm>
+#include "ftxui/component/component.hpp"
+
+using namespace ftxui;
+
+UserInterface::UserInterface()
+    : _screen(ScreenInteractive::Fullscreen()), _pages({}), _page_container(), _main_container(), _main_renderer(), _page_index(0)
+{
+}
+
+UserInterface::~UserInterface()
+{
+    _screen.Exit();
+}
+
+ftxui::ScreenInteractive *UserInterface::get_screen()
+{
+    return &_screen;
+}
+
+void UserInterface::add_screen(ScreenPage *p)
+{
+    _pages.push_back(p);
+}
+
+void UserInterface::select_screen(size_t index)
+{
+    _page_index = index;
+}
+
+void UserInterface::select_screen(const ScreenPage *p)
+{
+    const typename std::vector<ScreenPage *>::iterator it = std::find(_pages.begin(), _pages.end(), p);
+    const size_t index = it - _pages.begin();
+    select_screen(index);
+}
+
+void UserInterface::start()
+{
+    Components pages_component;
+    for (const auto &p : _pages)
+        pages_component.push_back(*(p->getPage()));
+    _page_container = Container::Tab(pages_component, &_page_index);
+
+    _main_container = Container::Vertical({
+        _page_container | flex,
+    });
+
+    _main_renderer = Renderer(_main_container, [&]
+                              { return vbox({
+                                    text("FTXUI Template") | inverted | hcenter,
+                                    separatorEmpty(),
+                                    _main_container->Render() | yflex_grow,
+                                }); });
+
+    _screen.Loop(_main_renderer);
+}
+
+void UserInterface::update()
+{
+    _screen.PostEvent(ftxui::Event::Custom);
+}