Segmentation stage 1

src/dataflux/app.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import dearpygui.dearpygui as dpg
+
+from dataflux.state import AppState
+import dataflux.ui.windows
+
+def run() -> None:
+    state: AppState = AppState()
+
+    # Create application context and viewport
+    dpg.create_context()
+    dpg.create_viewport(title='DataFlux', width=600, height=600)
+
+    # Add Inter font to registry and bind as main app font
+    with dpg.font_registry():
+        app_font = dpg.add_font("./Inter-Regular.ttf", 18)
+    dpg.bind_font(app_font)
+
+    dataflux.ui.windows.build_windows()
+
+    dpg.setup_dearpygui()
+    dpg.show_viewport()
+
+
+    vp_w = dpg.get_viewport_client_width()
+    vp_h = dpg.get_viewport_client_height()
+    dpg.configure_item("main_window", pos=(0, 0), width=vp_w, height=vp_h)
+    dpg.set_primary_window("main_window", True)
+
+    dpg.start_dearpygui()
+
+    dpg.destroy_context()
+
+    
+
+
+

src/dataflux/callbacks/menu.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+import dearpygui.dearpygui as dpg
+import dataflux.ui.routines.windows
+
+from dataflux.tags import WINDOW_CONNECTION_MENU
+
+def open_connection_window(sender, app_data, user_data) -> None:
+    dataflux.ui.routines.windows.update_window_connection_menu_combo() 
+    dpg.show_item(WINDOW_CONNECTION_MENU)

src/dataflux/services/serial/__init__.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import serial.tools.list_ports
+
+
+def list_serial_ports() -> list[str]:
+    ports = serial.tools.list_ports.comports()
+    valid_ports: list[str] = []
+    for port in ports:
+        if port.vid is not None and port.pid is not None:
+            valid_ports.append(port.device)
+
+    return valid_ports
+
+
+

src/dataflux/state.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from dataclasses import dataclass, field
+from threading import Lock, Thread
+from serial import Serial
+
+@dataclass
+class AppState:
+    running: bool = True
+
+    serial_port: Serial | None = None
+    serial_thread: Thread | None = None
+
+    telemetry_thread: Thread | None = None
+
+    lock: Lock = field(default_factory=Lock)

src/dataflux/tags.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+MENU_FILE_CONNECT: str = "menu_file_connect"
+MENU_FILE_DISCONNECT: str = "menu_file_disconnect"
+WINDOW_CONNECTION_MENU: str = "window_connection_menu"
+WINDOW_CONNECTION_MENU_COMBO: str = "window_connection_menu_combo"

src/dataflux/ui/routines/menu.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import dearpygui.dearpygui as dpg
+
+from dataflux.state import AppState
+from dataflux.tags import MENU_FILE_CONNECT, MENU_FILE_DISCONNECT
+
+def update_menu_file_connection_status(state: AppState) -> None:
+    if state.serial_port is None:
+        dpg.enable_item(MENU_FILE_CONNECT)
+        dpg.disable_item(MENU_FILE_DISCONNECT)
+    else:
+        dpg.disable_item(MENU_FILE_CONNECT)
+        dpg.enable_item(MENU_FILE_DISCONNECT)

src/dataflux/ui/routines/windows.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+import dearpygui.dearpygui as dpg
+
+from dataflux.services.serial import list_serial_ports
+from dataflux.tags import WINDOW_CONNECTION_MENU_COMBO
+
+def update_window_connection_menu_combo() -> None:
+    ports: list[str] = list_serial_ports()
+    dpg.configure_item(WINDOW_CONNECTION_MENU_COMBO, items=ports)

src/dataflux/ui/windows.py

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+# Copyright (C) 2026 Hector van der Aa <hector@h3cx.dev>
+# Copyright (C) 2026 Association Exergie <association.exergie@gmail.com>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import dearpygui.dearpygui as dpg
+import dataflux.callbacks.menu
+
+from dataflux.tags import MENU_FILE_CONNECT, MENU_FILE_DISCONNECT, WINDOW_CONNECTION_MENU, WINDOW_CONNECTION_MENU_COMBO
+
+
+def build_windows() -> None:
+    
+    with dpg.window(label='DataFlux',tag="main_window", no_collapse=True):
+        with dpg.menu_bar():
+            with dpg.menu(label='File'):
+                dpg.add_menu_item(label="Connect", enabled=True, tag=MENU_FILE_CONNECT, callback=dataflux.callbacks.menu.open_connection_window)
+                dpg.add_menu_item(label="Disonnect", enabled=False, tag=MENU_FILE_DISCONNECT)
+                dpg.add_menu_item(label="Quit")
+            with dpg.menu(label='Window'):
+                dpg.add_menu_item(label="Live Data", user_data="page_live_data")
+                dpg.add_menu_item(label="Lap Recap", user_data="page_lap_recap")
+
+        with dpg.child_window(tag="content_area", autosize_x=True, autosize_y=True, border=False):
+            with dpg.group(tag="page_live_data", show=True):
+                dpg.add_text("Live Data")
+                dpg.add_separator()
+                with dpg.group(horizontal=True):
+                    with dpg.child_window(tag="realtime_stats", width=250, autosize_y=True, border=True):
+                        dpg.add_text("Speed: 25kmh")
+
+                    with dpg.child_window(tag="data_graphs", autosize_x=True, autosize_y=True, border=True):
+                        with dpg.plot(label="Speed", height=250, width=-1, no_inputs=True):
+                            dpg.add_plot_legend()
+                            dpg.add_plot_axis(dpg.mvXAxis, label="Time", tag="x_axis_speed")
+                            y_axis = dpg.add_plot_axis(dpg.mvYAxis, label="Speed", tag="y_axis_speed")
+                            dpg.set_axis_limits("y_axis_speed", 0, 50)
+                            dpg.add_line_series([], [], parent=y_axis, tag="speed_series")
+
+            with dpg.group(tag="page_lap_recap", show=False):
+                dpg.add_text("Lap Recap")
+                dpg.add_separator()
+
+    with dpg.window(label="Connection Menu", tag=WINDOW_CONNECTION_MENU, show=False, modal=True, no_collapse=True, width=300):
+        dpg.add_combo([], tag=WINDOW_CONNECTION_MENU_COMBO)
+        dpg.add_button(label="Connect")