# arunkumarr1/weather architecture

> Architecture diagram of the GitHub repository arunkumarr1/weather, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-30). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/arunkumarr1/weather
- Repository: https://github.com/arunkumarr1/weather

## Overview

Weather is an installable, single-location-first forecast PWA. The user grants or declines location access, then views current conditions and forecasts; they can search for a city and inspect its weather. The app also presents air quality and condition-responsive animated skies. The sampled source places acquisition, state, and views together in app.jsx, so those responsibilities are shown as separate components sharing that implementation path. API connections and several PWA details are documented in the README; unsampled implementation details are not inferred.

Main entry points: [`app.jsx`](https://github.com/arunkumarr1/weather/blob/main/app.jsx) (App state and routing), [`index.html`](https://github.com/arunkumarr1/weather/blob/main/index.html) (Weather page), [`sw.js`](https://github.com/arunkumarr1/weather/blob/main/sw.js) (Offline shell cache)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_weather["Weather experience"]
  node_app["App state and routing<br/>[app.jsx]"]
  node_forecast["Forecast and detail tiles<br/>[app.jsx]"]
  node_cityview["City search and list<br/>[app.jsx]"]
  node_scene["Sky and scene rendering<br/>[app.jsx]"]
end

subgraph group_location["Location and data"]
  node_weatherdata["Weather data requests<br/>[app.jsx]"]
  node_citydata["City and location lookup<br/>[app.jsx]"]
  node_aqidata["Air quality requests<br/>[app.jsx]"]
end

subgraph group_runtime["PWA runtime"]
  node_page["Weather page<br/>[index.html]"]
  node_localstorage[("Saved cities<br/>[app.jsx]")]
  node_serviceworker["Offline shell cache<br/>[sw.js]"]
end

node_user(("User"))
node_weatherapi["Open-Meteo forecast API"]
node_geocodeapi["Open-Meteo geocoding API"]
node_reverseapi["BigDataCloud reverse geocoder"]
node_airapi["Open-Meteo air quality API"]
node_browser(("Browser"))

node_user -->|"opens"| node_page
node_page -->|"renders"| node_app
node_page -->|"registers"| node_serviceworker
node_app -->|"requests"| node_weatherdata
node_weatherdata -->|"fetches forecast"| node_weatherapi
node_app -->|"requests"| node_aqidata
node_aqidata -->|"fetches air quality"| node_airapi
node_app -->|"looks up locations"| node_citydata
node_citydata -->|"searches cities"| node_geocodeapi
node_citydata -->|"reverse geocodes"| node_reverseapi
node_app -->|"renders"| node_forecast
node_app -->|"renders"| node_cityview
node_app -->|"renders"| node_scene
node_app -->|"persists cities"| node_localstorage
node_serviceworker -->|"caches shell"| node_page
node_browser -.->|"provides location"| node_app

click node_page "https://github.com/arunkumarr1/weather/blob/main/index.html"
click node_app "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_forecast "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_cityview "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_scene "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_weatherdata "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_citydata "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_aqidata "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_localstorage "https://github.com/arunkumarr1/weather/blob/main/app.jsx"
click node_serviceworker "https://github.com/arunkumarr1/weather/blob/main/sw.js"

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_forecast,node_cityview,node_scene,node_user,node_browser toneBlue
class node_weatherdata,node_citydata,node_aqidata toneAmber
class node_page,node_localstorage,node_serviceworker,node_weatherapi,node_geocodeapi,node_airapi toneMint
class node_reverseapi toneIndigo
```

## Components

### Weather experience

- [App state and routing](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`
- [Forecast and detail tiles](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`
- [City search and list](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`
- [Sky and scene rendering](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`

### Location and data

- [Weather data requests](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`
- [City and location lookup](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`
- [Air quality requests](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`

### PWA runtime

- [Weather page](https://github.com/arunkumarr1/weather/blob/main/index.html): `index.html`
- [Saved cities](https://github.com/arunkumarr1/weather/blob/main/app.jsx): `app.jsx`
- [Offline shell cache](https://github.com/arunkumarr1/weather/blob/main/sw.js): `sw.js`

### Other components

- **User**
- **Open-Meteo forecast API**
- **Open-Meteo geocoding API**
- **BigDataCloud reverse geocoder**
- **Open-Meteo air quality API**
- **Browser**

## Connections

- User → Weather page: opens (evidence: `README.md`)
- Weather page → App state and routing: renders (evidence: `README.md`)
- Weather page → Offline shell cache: registers (evidence: `README.md`)
- App state and routing → Weather data requests: requests (evidence: `app.jsx`)
- Weather data requests → Open-Meteo forecast API: fetches forecast (evidence: `README.md`)
- App state and routing → Air quality requests: requests (evidence: `app.jsx`)
- Air quality requests → Open-Meteo air quality API: fetches air quality (evidence: `app.jsx`)
- App state and routing → City and location lookup: looks up locations (evidence: `README.md`)
- City and location lookup → Open-Meteo geocoding API: searches cities (evidence: `README.md`)
- City and location lookup → BigDataCloud reverse geocoder: reverse geocodes (evidence: `README.md`)
- App state and routing → Forecast and detail tiles: renders (evidence: `app.jsx`)
- App state and routing → City search and list: renders (evidence: `app.jsx`)
- App state and routing → Sky and scene rendering: renders (evidence: `app.jsx`)
- App state and routing → Saved cities: persists cities (evidence: `app.jsx`)
- Offline shell cache → Weather page: caches shell (evidence: `sw.js`)
- Browser → App state and routing: provides location (evidence: `README.md`)