# makayelle/foodcheck architecture

> Architecture diagram of the GitHub repository makayelle/foodcheck, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-25). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/makayelle/foodcheck
- Repository: https://github.com/makayelle/foodcheck

## Overview

The tree contains a single HTML app and a service worker; the cache name suggests nutrition tracking, but the README and app source are unavailable, so the app’s domain workflow and capabilities cannot be verified. The sampled service worker implements cache-first requests, pre-caches the app shell, removes older caches on activation, and falls back to the HTML page when network access fails. Its Google Fonts caching behavior is also shown. App-to-worker registration and other app behavior are not represented because they are unverified.

Main entry points: [`sw.js`](https://github.com/makayelle/foodcheck/blob/main/sw.js) (Service worker), [`index.html`](https://github.com/makayelle/foodcheck/blob/main/index.html) (HTML app), [`manifest.json`](https://github.com/makayelle/foodcheck/blob/main/manifest.json) (Web manifest)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["App runtime"]
  node_app["HTML app<br/>[index.html]"]
  node_worker["Service worker<br/>[sw.js]"]
  node_cache[("Cache storage")]
  node_manifest["Web manifest<br/>[manifest.json]"]
end

node_user(("User"))
node_network["Network"]

node_user -->|"opens"| node_app
node_worker -->|"pre-caches assets"| node_cache
node_worker -->|"removes old caches"| node_cache
node_worker -->|"looks up request"| node_cache
node_cache -->|"returns cached response"| node_worker
node_worker -->|"fetches on miss"| node_network
node_network -->|"returns response"| node_worker
node_worker -->|"caches Google Fonts"| node_cache
node_worker -->|"fallback response"| node_app
node_worker -->|"pre-caches"| node_manifest

click node_app "https://github.com/makayelle/foodcheck/blob/main/index.html"
click node_worker "https://github.com/makayelle/foodcheck/blob/main/sw.js"
click node_manifest "https://github.com/makayelle/foodcheck/blob/main/manifest.json"

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_worker,node_cache,node_manifest,node_user toneBlue
class node_network toneIndigo
```

## Components

### App runtime

- [HTML app](https://github.com/makayelle/foodcheck/blob/main/index.html): `index.html`
- [Service worker](https://github.com/makayelle/foodcheck/blob/main/sw.js): `sw.js`
- **Cache storage**
- [Web manifest](https://github.com/makayelle/foodcheck/blob/main/manifest.json): `manifest.json`

### Other components

- **User**
- **Network**

## Connections

- User → HTML app: opens
- Service worker → Cache storage: pre-caches assets
- Service worker → Cache storage: removes old caches
- Service worker → Cache storage: looks up request
- Cache storage → Service worker: returns cached response
- Service worker → Network: fetches on miss
- Network → Service worker: returns response
- Service worker → Cache storage: caches Google Fonts
- Service worker → HTML app: fallback response
- Service worker → Web manifest: pre-caches