# mohammed-abed-alkareem/librelinkup-desktop-widget architecture

> Architecture diagram of the GitHub repository mohammed-abed-alkareem/librelinkup-desktop-widget, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-29). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/mohammed-abed-alkareem/librelinkup-desktop-widget
- Repository: https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget

## Overview

LibreLinkUp Desktop Monitor is a Qt desktop widget and tray app for viewing CGM readings. The principal workflow is saved-account loading, LibreLinkUp authentication and patient selection, periodic/manual refresh, then displaying the reading and trend alongside a glucose graph and tray badge. Settings, widget controls, and tray actions are additional user-facing capabilities. The source excerpts are partial; unsampled details are represented only where the README documents them, and uncertain wiring is omitted.

Main entry points: [`main.py`](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py) (Glucose Widget)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_presentation["Desktop UI"]
  node_widget["Glucose Widget<br/>[main.py]"]
  node_settings["Settings Dialog<br/>[main.py]"]
  node_reading["Reading Display<br/>[main.py]"]
  node_graph["Glucose Graph<br/>[main.py]"]
  node_tray["System Tray<br/>[main.py]"]
  node_menus["Context Menus<br/>[main.py]"]
end

subgraph group_runtime["Refresh Runtime"]
  node_scheduler["Refresh Timer<br/>[main.py]"]
  node_worker["Fetch Worker<br/>[main.py]"]
end

subgraph group_account["Account and API"]
  node_credentials[("Saved Credentials<br/>[main.py]")]
  node_librelinkup{{"LibreLinkUp API"}}
end

node_user(("User"))

node_user -->|"uses"| node_widget
node_widget -->|"loads credentials"| node_credentials
node_widget -->|"opens"| node_settings
node_settings -->|"returns account settings"| node_widget
node_widget -->|"starts timer"| node_scheduler
node_scheduler -->|"triggers refresh"| node_widget
node_widget -->|"starts fetch"| node_worker
node_worker -->|"authenticates and fetches"| node_librelinkup
node_worker -->|"emits status and data"| node_widget
node_widget -->|"updates reading"| node_reading
node_widget -->|"sets graph data"| node_graph
node_widget -->|"updates badge"| node_tray
node_user -->|"invokes actions"| node_menus
node_menus -->|"dispatches controls"| node_widget
node_tray -->|"opens actions"| node_menus

click node_widget "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_settings "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_reading "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_graph "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_tray "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_menus "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_scheduler "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_worker "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"
click node_credentials "https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_widget,node_settings,node_reading,node_graph,node_tray,node_menus,node_user toneBlue
class node_scheduler,node_worker toneAmber
class node_credentials,node_librelinkup toneMint
```

## Components

### Desktop UI

- [Glucose Widget](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- [Settings Dialog](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- [Reading Display](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- [Glucose Graph](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- [System Tray](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- [Context Menus](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`

### Refresh Runtime

- [Refresh Timer](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- [Fetch Worker](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`

### Account and API

- [Saved Credentials](https://github.com/mohammed-abed-alkareem/librelinkup-desktop-widget/blob/main/main.py): `main.py`
- **LibreLinkUp API**

### Other components

- **User**

## Connections

- User → Glucose Widget: uses
- Glucose Widget → Saved Credentials: loads credentials
- Glucose Widget → Settings Dialog: opens
- Settings Dialog → Glucose Widget: returns account settings
- Glucose Widget → Refresh Timer: starts timer
- Refresh Timer → Glucose Widget: triggers refresh
- Glucose Widget → Fetch Worker: starts fetch
- Fetch Worker → LibreLinkUp API: authenticates and fetches
- Fetch Worker → Glucose Widget: emits status and data
- Glucose Widget → Reading Display: updates reading
- Glucose Widget → Glucose Graph: sets graph data
- Glucose Widget → System Tray: updates badge
- User → Context Menus: invokes actions
- Context Menus → Glucose Widget: dispatches controls
- System Tray → Context Menus: opens actions