# taqqi1214/steelhead-dc-dr-calculator architecture

> Architecture diagram of the GitHub repository taqqi1214/steelhead-dc-dr-calculator, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-06-16). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/taqqi1214/steelhead-dc-dr-calculator
- Repository: https://github.com/taqqi1214/steelhead-dc-dr-calculator

## Overview

1. This repository is a small, client-side AI Studio app built with Vite + React + TypeScript. There is no separate backend service, database, or server code in the tree; the architecture is centered on a browser app.

2. The main execution path starts at `index.html`, which is the Vite entry page, then `src/main.tsx`, which bootstraps the React application into the DOM, and finally `src/App.tsx`, which contains the top-level UI and app logic.

3. `src/App.tsx` is the primary application boundary. In a repo this size, that file typically owns the core interaction flow and any integration points with external services. The README makes clear that the app expects a `GEMINI_API_KEY`, so AI-related behavior is likely initiated from this layer.

4. External AI access is the main service dependency. The app is designed to run locally with a Gemini API key supplied in `.env.local`, meaning the browser app depends on environment-provided credentials to communicate with Google’s Gemini service or an AI Studio runtime wrapper.

5. Styling is handled separately in `src/index.css`, which suggests a simple UI stack with global CSS rather than a complex component library or design system. There are no visible subdirectories for reusable components, state management, or routing, so the UI is probably compact and single-screen or low-navigation.

6. Build and dev tooling are Vite-based. `vite.config.ts` defines the bundler/dev-server configuration, while `tsconfig.json` provides TypeScript compilation settings. `package.json` and `package-lock.json` define the runtime dependencies and scripts used to install, develop, and build the app.

7. `metadata.json` is an AI Studio-specific artifact. It likely carries app metadata for deployment or platform registration rather than runtime logic, so it is a deployment/management boundary rather than an application subsystem.

8. `.env.example` documents the required environment contract. The key architectural variable is `GEMINI_API_KEY`, which must be present for local execution. That indicates secret management is externalized and not hardcoded into the repository.

9. The runtime data flow is straightforward: the browser loads the static app shell, React mounts the UI, user actions are handled in the frontend, and any AI calls are sent outward to Gemini using the configured key. There is no evidence of an intermediate API layer in this repo.

10. The deployment model is static frontend hosting or Vite build output, not containerized services or server orchestration. Any production deployment would package the client assets and rely on environment configuration for the Gemini credential.

11. From an architecture-diagram perspective, the key boxes are: browser/client UI, Vite build/dev tooling, React application entry and UI layer, external Gemini API, and environment/secret configuration. The main boundary is between the client app and the external AI service.

Main entry points: [`src/App.tsx`](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/App.tsx) (App.tsx), [`package.json`](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/package.json) (package.json), [`index.html`](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/index.html) (index.html), [`src/main.tsx`](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/main.tsx) (main.tsx)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["Client App"]
  node_index_html["index.html<br/>entry page<br/>[index.html]"]
  node_main_tsx["main.tsx<br/>bootstrap<br/>[main.tsx]"]
  node_app_tsx["App.tsx<br/>ui shell<br/>[App.tsx]"]
  node_index_css["index.css<br/>global styles<br/>[index.css]"]
end

subgraph group_tooling["Build Tooling"]
  node_vite_config["vite.config.ts<br/>bundler config<br/>[vite.config.ts]"]
  node_tsconfig["tsconfig.json<br/>typescript config<br/>[tsconfig.json]"]
  node_package_json["package.json<br/>scripts & deps<br/>[package.json]"]
  node_package_lock["package-lock.json<br/>dependency lock<br/>[package-lock.json]"]
end

subgraph group_config["Config & Metadata"]
  node_env_example[".env.example<br/>env contract<br/>[.env.example]"]
  node_metadata_json["metadata.json<br/>ai studio metadata<br/>[metadata.json]"]
end

node_gemini_api{{"Gemini API<br/>external ai service"}}

node_index_html -->|"loads"| node_main_tsx
node_main_tsx -->|"mounts"| node_app_tsx
node_app_tsx -->|"styles"| node_index_css
node_app_tsx -->|"calls"| node_gemini_api
node_env_example -.->|"configures"| node_gemini_api
node_package_json -->|"drives"| node_vite_config
node_package_json -->|"uses"| node_tsconfig
node_package_lock -.->|"locks"| node_package_json
node_vite_config -->|"serves"| node_index_html
node_metadata_json -.->|"describes"| node_app_tsx

click node_index_html "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/index.html"
click node_main_tsx "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/main.tsx"
click node_app_tsx "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/App.tsx"
click node_index_css "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/index.css"
click node_vite_config "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/vite.config.ts"
click node_tsconfig "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/tsconfig.json"
click node_package_json "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/package.json"
click node_package_lock "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/package-lock.json"
click node_env_example "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/.env.example"
click node_metadata_json "https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/metadata.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_index_html,node_main_tsx,node_app_tsx,node_index_css toneBlue
class node_vite_config,node_tsconfig,node_package_json,node_package_lock toneAmber
class node_env_example,node_metadata_json toneMint
class node_gemini_api toneNeutral
```

## Components

### Client App

Browser-side React application and its execution path.

- [index.html](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/index.html): entry page · Vite entry document loaded by the browser. · `index.html`
- [main.tsx](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/main.tsx): bootstrap · Mounts the React app into the DOM. · `src/main.tsx`
- [App.tsx](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/App.tsx): ui shell · Top-level app boundary and main interaction flow. · `src/App.tsx`
- [index.css](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/src/index.css): global styles · Global stylesheet for the browser UI. · `src/index.css`

### Build Tooling

Vite, TypeScript, and package-level development/build setup.

- [vite.config.ts](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/vite.config.ts): bundler config · Vite development and build configuration. · `vite.config.ts`
- [tsconfig.json](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/tsconfig.json): typescript config · TypeScript compiler settings. · `tsconfig.json`
- [package.json](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/package.json): scripts & deps · Project scripts and runtime dependency manifest. · `package.json`
- [package-lock.json](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/package-lock.json): dependency lock · Locked dependency tree for installs. · `package-lock.json`

### Config & Metadata

Environment contract and AI Studio metadata for deployment/usage.

- [.env.example](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/.env.example): env contract · Documents required environment variables such as the Gemini API key. · `.env.example`
- [metadata.json](https://github.com/taqqi1214/steelhead-dc-dr-calculator/blob/main/metadata.json): ai studio metadata · AI Studio-specific deployment or registration metadata. · `metadata.json`

### Other components

- **Gemini API**: external ai service · Remote AI service used by the app at runtime.

## Connections

- index.html → main.tsx: loads · Browser entry document loads the React bootstrap module.
- main.tsx → App.tsx: mounts · Bootstraps the top-level application component.
- App.tsx → index.css: styles · Application UI is styled by the global stylesheet.
- App.tsx → Gemini API: calls · Runtime AI interactions are sent to Gemini using configured credentials.
- .env.example → Gemini API: configures · Defines the environment variable contract for AI access.
- package.json → vite.config.ts: drives · Project scripts depend on Vite for dev/build flows.
- package.json → tsconfig.json: uses · TypeScript tooling is part of the project setup.
- package-lock.json → package.json: locks · Pins the dependency versions declared by package.json.
- vite.config.ts → index.html: serves · Vite uses the HTML entry as the app shell.
- metadata.json → App.tsx: describes · Metadata represents the app for AI Studio or deployment context.