# sabbirahmad12/weather-application architecture

> Architecture diagram of the GitHub repository sabbirahmad12/weather-application, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-26). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/sabbirahmad12/weather-application
- Repository: https://github.com/sabbirahmad12/weather-application

## Overview

This is a Tkinter weather desktop application. A user enters a city, the application requests current conditions and a five-day forecast from OpenWeatherMap, updates the weather and forecast displays, logs successful current-weather results to Excel, and changes the interface theme to match the conditions. The README also documents unit switching, weather icons, and clock updates. The main.py excerpts are partial, so the graph omits uncertain wiring and uses the existing data file as the log store.

Main entry points: [`main.py`](https://github.com/sabbirahmad12/weather-application/blob/main/main.py) (Weather application), [`background_manager.py`](https://github.com/sabbirahmad12/weather-application/blob/main/background_manager.py) (Condition-based theme), [`data/weather_log.xlsx`](https://github.com/sabbirahmad12/weather-application/blob/main/data/weather_log.xlsx) (Weather log workbook)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_interface["Desktop interface"]
  node_app["Weather application<br/>[main.py]"]
  node_location["City input<br/>[main.py]"]
  node_weather_display["Weather display<br/>[main.py]"]
  node_forecast_display["Forecast display<br/>[main.py]"]
  node_unit_display["Unit conversion<br/>[main.py]"]
  node_clock["Date and time<br/>[main.py]"]
  node_theme["Condition-based theme"]
end

subgraph group_weather["Weather data"]
  node_current["Current conditions<br/>[main.py]"]
  node_forecast["Five-day forecast<br/>[main.py]"]
end

subgraph group_state["Display and logging"]
  node_logger["Excel logging<br/>[main.py]"]
  node_log_store[("Weather log workbook<br/>[weather_log.xlsx]")]
end

node_user(("User"))
node_weather_api["OpenWeatherMap API"]
node_icon_service["Weather icon service"]

node_user -->|"enters city"| node_location
node_location -->|"submits search"| node_app
node_app -->|"requests conditions"| node_current
node_current -->|"fetches current"| node_weather_api
node_weather_api -->|"returns data"| node_current
node_app -->|"requests forecast"| node_forecast
node_forecast -->|"fetches forecast"| node_weather_api
node_weather_api -->|"returns data"| node_forecast
node_app -->|"updates display"| node_weather_display
node_app -->|"updates display"| node_forecast_display
node_app -->|"logs conditions"| node_logger
node_logger -->|"reads and writes"| node_log_store
node_app -->|"updates theme"| node_theme
node_weather_display -.->|"loads icon"| node_icon_service
node_forecast_display -.->|"loads icons"| node_icon_service
node_unit_display -->|"refreshes values"| node_weather_display
node_unit_display -->|"refreshes values"| node_forecast_display
node_app -->|"updates clock"| node_clock

click node_app "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_location "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_current "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_forecast "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_weather_display "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_forecast_display "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_unit_display "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_clock "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_theme "https://github.com/sabbirahmad12/weather-application/blob/main/background_manager.py"
click node_logger "https://github.com/sabbirahmad12/weather-application/blob/main/main.py"
click node_log_store "https://github.com/sabbirahmad12/weather-application/blob/main/data/weather_log.xlsx"

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_app,node_location,node_weather_display,node_forecast_display,node_unit_display,node_clock,node_theme,node_user toneBlue
class node_current,node_forecast toneAmber
class node_logger,node_log_store,node_weather_api toneMint
class node_icon_service toneIndigo
```

## Components

### Desktop interface

- [Weather application](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [City input](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Weather display](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Forecast display](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Unit conversion](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Date and time](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Condition-based theme](https://github.com/sabbirahmad12/weather-application/blob/main/background_manager.py): `background_manager.py`

### Weather data

- [Current conditions](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Five-day forecast](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`

### Display and logging

- [Excel logging](https://github.com/sabbirahmad12/weather-application/blob/main/main.py): `main.py`
- [Weather log workbook](https://github.com/sabbirahmad12/weather-application/blob/main/data/weather_log.xlsx): `data/weather_log.xlsx`

### Other components

- **User**
- **OpenWeatherMap API**
- **Weather icon service**

## Connections

- User → City input: enters city
- City input → Weather application: submits search
- Weather application → Current conditions: requests conditions
- Current conditions → OpenWeatherMap API: fetches current
- OpenWeatherMap API → Current conditions: returns data
- Weather application → Five-day forecast: requests forecast
- Five-day forecast → OpenWeatherMap API: fetches forecast
- OpenWeatherMap API → Five-day forecast: returns data
- Weather application → Weather display: updates display
- Weather application → Forecast display: updates display
- Weather application → Excel logging: logs conditions
- Excel logging → Weather log workbook: reads and writes
- Weather application → Condition-based theme: updates theme
- Weather display → Weather icon service: loads icon
- Forecast display → Weather icon service: loads icons
- Unit conversion → Weather display: refreshes values
- Unit conversion → Forecast display: refreshes values
- Weather application → Date and time: updates clock